Publications

@article{WOS:001093584800001,

title = {Kinetics of Light-Responsive CNT/PNIPAM Hydrogel Microactuators},

author = {Aoife Gregg and Michael De Volder and Jeremy J. Baumberg},

doi = {10.1002/smll.202305034},

issn = {1613-6810},

year  = {2024},

date = {2024-03-01},

journal = {SMALL},

volume = {20},

number = {9},

publisher = {WILEY-V C H VERLAG GMBH},

address = {POSTFACH 101161, 69451 WEINHEIM, GERMANY},

abstract = {Light-responsive microactuators composed of vertically aligned carbon 

 nanotube (CNT) forests mixed with poly(N-isopropylacrylamide) (PNIPAM) 

 hydrogel composites are studied. The benefit of this composite is that 

 CNTs act as a black absorber to efficiently capture radiative heating 

 and trigger PNIPAM contraction. In addition, CNT forests can be 

 patterned accurately using lithography to span structures ranging from a 

 few micrometers to several millimeters in size, and these CNT-PNIPAM 

 composites can achieve response times as fast as 15 ms. The kinetics of 

 these microactuators are investigated through detailed analysis of 

 high-speed videos. These are compared to a theoretical model for the 

 deswelling dynamics, which combines thermal convection and polymer 

 diffusion, and shows that polymer diffusion is the rate-limiting factor 

 in this system. Applications of such CNT/hydrogel actuators as 

 microswimmers are discussed, with light-actuating micro-jellyfish 

 designs exemplified, and >1500 cycles demonstrated.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001179843500001,

title = {Non-symmetric Pauli spin blockade in a silicon double quantum dot},

author = {Theodor Lundberg and David J. Ibberson and Jing Li and Louis Hutin and Jose C. Abadillo-Uriel and Michele Filippone and Benoit Bertrand and Andreas Nunnenkamp and Chang-Min Lee and Nadia Stelmashenko and Jason W. A. Robinson and Maud Vinet and Lisa Ibberson and Yann-Michel Niquet and M. Fernando Gonzalez-Zalba},

doi = {10.1038/s41534-024-00820-1},

year  = {2024},

date = {2024-03-01},

journal = {NPJ QUANTUM INFORMATION},

volume = {10},

number = {1},

publisher = {NATURE PORTFOLIO},

address = {HEIDELBERGER PLATZ 3, BERLIN, 14197, GERMANY},

abstract = {Spin qubits in gate-defined silicon quantum dots are receiving increased 

 attention thanks to their potential for large-scale quantum computing. 

 Readout of such spin qubits is done most accurately and scalably via 

 Pauli spin blockade (PSB), however, various mechanisms may lift PSB and 

 complicate readout. In this work, we present an experimental study of 

 PSB in a multi-electron low-symmetry double quantum dot (DQD) in silicon 

 nanowires. We report on the observation of non-symmetric PSB, 

 manifesting as blockaded tunneling when the spin is projected to one QD 

 of the pair but as allowed tunneling when the projection is done into 

 the other. By analyzing the interaction of the DQD with a readout 

 resonator, we find that PSB lifting is caused by a large coupling 

 between the different electron spin manifolds of 7.90 mu eV and that 

 tunneling is incoherent. Further, magnetospectroscopy of the DQD in 16 

 charge configurations, enables reconstructing the energy spectrum of the 

 DQD and reveals the lifting mechanism is energy-level selective. Our 

 results indicate enhanced spin-orbit coupling which may enable 

 all-electrical qubit control of electron spins in silicon nanowires.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001152693700001,

title = {Solar reforming as an emerging technology for circular chemical 

 industries},

author = {Subhajit Bhattacharjee and Stuart Linley and Erwin Reisner},

doi = {10.1038/s41570-023-00567-x},

year  = {2024},

date = {2024-02-01},

journal = {NATURE REVIEWS CHEMISTRY},

volume = {8},

number = {2},

pages = {87-105},

publisher = {NATURE PORTFOLIO},

address = {HEIDELBERGER PLATZ 3, BERLIN, 14197, GERMANY},

abstract = {The adverse environmental impacts of greenhouse gas emissions and 

 persistent waste accumulation are driving the demand for sustainable 

 approaches to clean-energy production and waste recycling. By coupling 

 the thermodynamically favourable oxidation of waste-derived organic 

 carbon streams with fuel-forming reduction reactions suitable for 

 producing clean hydrogen or converting CO2 to fuels, solar reforming 

 simultaneously valorizes waste and generates useful chemical products. 

 With appropriate light harvesting, catalyst design, device 

 configurations and waste pre-treatment strategies, a range of 

 sustainable fuels and value-added chemicals can already be selectively 

 produced from diverse waste feedstocks, including biomass and plastics, 

 demonstrating the potential of solar-powered upcycling plants. This 

 Review highlights solar reforming as an emerging technology that is 

 currently transitioning from fundamental research towards practical 

 application. We investigate the chemistry and compatibility of waste 

 pre-treatment, introduce process classifications, explore the mechanisms 

 of different solar reforming technologies, and suggest appropriate 

 concepts, metrics and pathways for various deployment scenarios in a 

 net-zero-carbon future. 

 This Review introduces solar reforming as an emerging technology to 

 produce sustainable fuels and chemicals from diverse waste feedstocks 

 using sunlight. The chemistry and concept of solar reforming, 

 suggestions of key metrics and proposed directions to realize 

 solar-powered refineries for a future circular economy are discussed.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001170343800001,

title = {Direct linearly polarized electroluminescence from perovskite 

 nanoplatelet superlattices},

author = {Junzhi Ye and Aobo Ren and Linjie Dai and Tomi K. Baikie and Renjun Guo and Debapriya Pal and Sebastian Gorgon and Julian E. Heger and Junyang Huang and Yuqi Sun and Rakesh Arul and Gianluca Grimaldi and Kaiwen Zhang and Javad Shamsi and Yi-Teng Huang and Hao Wang and Jiang Wu and A. Femius Koenderink and Laura Torrente Murciano and Matthias Schwartzkopf and Stephen V. Roth and Peter Mueller-Buschbaum and Jeremy J. Baumberg and Samuel D. Stranks and Neil C. Greenham and Lakshminarayana Polavarapu and Wei Zhang and Akshay Rao and Robert L. Z. Hoye},

doi = {10.1038/s41566-024-01398-y},

issn = {1749-4885},

year  = {2024},

date = {2024-02-01},

journal = {NATURE PHOTONICS},

publisher = {NATURE PORTFOLIO},

address = {HEIDELBERGER PLATZ 3, BERLIN, 14197, GERMANY},

abstract = {Polarized light is critical for a wide range of applications, but is 

 usually generated by filtering unpolarized light, which leads to 

 substantial energy losses and requires additional optics. Here we 

 demonstrate the direct emission of linearly polarized light from 

 light-emitting diodes made of CsPbI3 perovskite nanoplatelet 

 superlattices. The use of solvents with different vapour pressures 

 enables the self-assembly of the nanoplatelets with fine control over 

 their orientation (either face-up or edge-up) and therefore their 

 transition dipole moment. As a result of the highly uniform alignment of 

 the nanoplatelets, as well as their strong quantum and dielectric 

 confinement, large exciton fine-structure splitting is achieved at the 

 film level, leading to pure red light-emitting diodes with linearly 

 polarized electroluminescence exhibiting a high degree of polarization 

 of 74.4% without any photonic structures. This work demonstrates the 

 potential of perovskite nanoplatelets as a promising source of linearly 

 polarized light, opening up the development of next-generation 

 three-dimensional displays and optical communications from a highly 

 versatile, solution-processable system. 

 Self-assembled perovskite nanoplatelets emit linearly polarized light, 

 enabling the realization of red perovskite light-emitting diodes with a 

 74.4% degree of linear polarization.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001126232100001,

title = {Spiers Memorial Lecture: Lithium air batteries - tracking function and 

 failure},

author = {Jana B. Fritzke and James H. J. Ellison and Laurence Brazel and Gabriela Horwitz and Svetlana Menkin and Clare P. Grey},

doi = {10.1039/d3fd00154g},

issn = {1359-6640},

year  = {2024},

date = {2024-01-01},

journal = {FARADAY DISCUSSIONS},

volume = {248},

number = {0},

pages = {9-28},

publisher = {ROYAL SOC CHEMISTRY},

address = {THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, 

 ENGLAND},

abstract = {The lithium-air battery (LAB) is arguably the battery with the highest 

 energy density, but also a battery with significant challenges to be 

 overcome before it can be used commercially in practical devices. Here, 

 we discuss experimental approaches developed by some of the authors to 

 understand the function and failure of lithium-oxygen batteries. For 

 example, experiments in which nuclear magnetic resonance (NMR) 

 spectroscopy was used to quantify dissolved oxygen concentrations and 

 diffusivity are described. 17O magic angle spinning (MAS) NMR spectra of 

 electrodes extracted from batteries at different states of charge (SOC) 

 allowed the electrolyte decomposition products at each stage to be 

 determined. For instance, the formation of Li2CO3 and LiOH in a 

 dimethoxyethane (DME) solvent and their subsequent removal on charging 

 was followed. Redox mediators have been used to chemically reduce oxygen 

 or to chemically oxidise Li2O2 in order to prevent electrode clogging by 

 insulating compounds, which leads to lower capacities and rapid 

 degradation; the studies of these mediators represent an area where NMR 

 and electron paramagnetic resonance (EPR) studies could play a role in 

 unravelling reaction mechanisms. Finally, recently developed coupled in 

 situ NMR and electrochemical impedance spectroscopy (EIS) are used to 

 characterise the charge transport mechanism in lithium symmetric cells 

 and to distinguish between electronic and ionic transport, demonstrating 

 the formation of transient (soft) shorts in common lithium-oxygen 

 electrolytes. More stable solid electrolyte interphases are formed under 

 an oxygen atmosphere, which helps stabilise the lithium anode on 

 cycling. 

 Here, we discuss experimental approaches developed by some of the 

 authors to understand the function and failure of lithium-oxygen 

 batteries.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001152323000001,

title = {Selenium-silk microgels as antifungal and antibacterial agents},

author = {Elizabeth G. Wiita and Zenon Toprakcioglu and Akhila K. Jayaram and Tuomas P. J. Knowles},

doi = {10.1039/d3nh00385j},

issn = {2055-6756},

year  = {2024},

date = {2024-01-01},

journal = {NANOSCALE HORIZONS},

publisher = {ROYAL SOC CHEMISTRY},

address = {THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, 

 ENGLAND},

abstract = {Antimicrobial resistance is a leading threat to global health. 

 Alternative therapeutics to combat the rise in drug-resistant strains of 

 bacteria and fungi are thus needed, but the development of new classes 

 of small molecule therapeutics has remained challenging. Here, we 

 explore an orthogonal approach and address this issue by synthesising 

 micro-scale, protein colloidal particles that possess potent 

 antimicrobial properties. We describe an approach for forming silk-based 

 microgels that contain selenium nanoparticles embedded within the 

 protein scaffold. We demonstrate that these materials have both 

 antibacterial and antifungal properties while, crucially, also remaining 

 highly biocompatible with mammalian cell lines. By combing the 

 nanoparticles with silk, the protein microgel is able to fulfill two 

 critical functions; it protects the mammalian cells from the cytotoxic 

 effects of the bare nanoparticles, while simultaneously serving as a 

 carrier for microbial eradication. Furthermore, since the antimicrobial 

 activity originates from physical contact, bacteria and fungi are 

 unlikely to develop resistance to our hybrid biomaterials, which remains 

 a critical issue with current antibiotic and antifungal treatments. 

 Therefore, taken together, these results provide the basis for 

 innovative antimicrobial materials that can target drug-resistant 

 microbial infections. 

 Silk-based microgels that contain selenium nanoparticles embedded within 

 the protein scaffold, that display potent antibacterial and antifungal 

 properties, while importantly remain highly biocompatible with mammalian 

 cells.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001144906400001,

title = {Few-emitter lasing in single ultra-small nanocavities},

author = {Oluwafemi S. Ojambati and Kristin B. Arnardottir and Brendon W. Lovett and Jonathan Keeling and Jeremy J. Baumberg},

doi = {10.1515/nanoph-2023-0706},

issn = {2192-8606},

year  = {2024},

date = {2024-01-01},

journal = {NANOPHOTONICS},

publisher = {WALTER DE GRUYTER GMBH},

address = {GENTHINER STRASSE 13, D-10785 BERLIN, GERMANY},

abstract = {Lasers are ubiquitous for information storage, processing, 

 communications, sensing, biological research and medical applications. 

 To decrease their energy and materials usage, a key quest is to 

 miniaturise lasers down to nanocavities. Obtaining the smallest mode 

 volumes demands plasmonic nanocavities, but for these, gain comes from 

 only a single or few emitters. Until now, lasing in such devices was 

 unobtainable due to low gain and high cavity losses. Here, we 

 demonstrate a form of `few emitter lasing' in a plasmonic nanocavity 

 approaching the single-molecule emitter regime. The few-emitter lasing 

 transition significantly broadens, and depends on the number of 

 molecules and their individual locations. We show this non-standard 

 few-emitter lasing can be understood by developing a theoretical 

 approach extending previous weak-coupling theories. Our work paves the 

 way for developing nanolaser applications as well as fundamental studies 

 at the limit of few emitters.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001158792100001,

title = {Controllable Multimodal Actuation in Fully Printed Ultrathin 

 Micro-Patterned Electrochemical Actuators},

author = {Ji Zhang and Qingshen Jing and Tom Wade and Zhencheng Xu and Liam Ives and Diandian Zhang and Jeremy J. Baumberg and Sohini Kar-Narayan},

doi = {10.1021/acsami.3c19006},

issn = {1944-8244},

year  = {2024},

date = {2024-01-01},

journal = {ACS APPLIED MATERIALS & INTERFACES},

volume = {16},

number = {5},

pages = {6485-6494},

publisher = {AMER CHEMICAL SOC},

address = {1155 16TH ST, NW, WASHINGTON, DC 20036 USA},

abstract = {Submillimeter or micrometer scale electrically controlled soft actuators 

 have immense potential in microrobotics, haptics, and biomedical 

 applications. However, the fabrication of miniaturized and 

 micropatterned open-air soft actuators has remained challenging. In this 

 study, we demonstrate the microfabrication of trilayer electrochemical 

 actuators (ECAs) through aerosol jet printing (AJP), a rapid prototyping 

 method with a 10 mu m lateral resolution. We make fully printed 1000 x 

 5000 x 12 mu m(3) ultrathin ECAs, each of which comprises a Nafion 

 electrolyte layer sandwiched between two 

 poly-(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) 

 electrode layers. The ECAs actuate due to the electric-field-driven 

 migration of hydrated protons. Due to the thinness that gives rise to a 

 low proton transport length and a low flexural rigidity, the printed 

 ECAs can operate under low voltages (similar to 0.5 V) and have a 

 relatively fast response (similar to seconds). We print all the 

 components of an actuator that consists of two individually controlled 

 submillimeter segments and demonstrate its multimodal actuation. The 

 convenience, versatility, rapidity, and low cost of our microfabrication 

 strategy promise future developments in integrating arrays of 

 intricately patterned individually controlled soft microactuators on 

 compact stretchable electronic circuits.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001149790300001,

title = {Redox Flow Iontophoresis for Continuous Drug Delivery},

author = {Tobias E. Naegele and Johannes Gurke and Etienne Rognin and Niamh Willis-Fox and Anthony Dennis and Xudong Tao and Ronan Daly and Ulrich F. Keyser and George G. Malliaras},

doi = {10.1002/admt.202301641},

issn = {2365-709X},

year  = {2024},

date = {2024-01-01},

journal = {ADVANCED MATERIALS TECHNOLOGIES},

publisher = {WILEY},

address = {111 RIVER ST, HOBOKEN, NJ 07030 USA},

abstract = {Drug delivery into the brain and spinal cord is fundamentally limited by 

 the blood-brain barrier which impedes the use of the vast majority of 

 drugs. Implants based on iontophoresis use an applied voltage to deliver 

 charged drug molecules, allowing solvent-free delivery directly into the 

 site of interest and overcoming issues associated with systemic exposure 

 to the drug. However, during continuous delivery over long periods, 

 electrochemical reactions occur at the electrodes leading to corrosive 

 gas formation. Here, the concept of redox flow iontophoresis is 

 presented, where a redox mediator solution is used to control electrode 

 reactions and sustain continuous delivery for theoretically unlimited 

 duration. As a proof-of-concept, a redox flow iontophoresis-based brain 

 implant that can continuously deliver the cancer drug doxorubicin at 

 stable rates exceeding 2 nmol min-1 is demonstrated. This new concept 

 enables the continuous delivery of various potent drugs into the brain 

 and spinal cord and therefore has the potential to improve treatment 

 options for various diseases. 

 A new concept in iontophoresis is presented, where a redox mediator 

 solution is used to control electrode reactions and sustain continuous 

 drug delivery. It allows the solvent-free delivery of various drugs over 

 a theoretically unlimited period, offering the potential to improve 

 treatment options for various diseases, including hard-to-treat 

 cancers.image},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001160569400001,

title = {Far-field, near-field and photothermal response of plasmonic twinned 

 magnesium nanostructures},

author = {Christina Boukouvala and Claire A. West and Andrey Ten and Elizabeth Hopper and Quentin M. Ramasse and John S. Biggins and Emilie Ringe},

doi = {10.1039/d3nr05848d},

issn = {2040-3364},

year  = {2024},

date = {2024-01-01},

journal = {NANOSCALE},

publisher = {ROYAL SOC CHEMISTRY},

address = {THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, 

 ENGLAND},

abstract = {Magnesium nanoparticles offer an alternative plasmonic platform capable 

 of resonances across the ultraviolet, visible and near-infrared. 

 Crystalline magnesium nanoparticles display twinning on the (1011), 

 (1012), (1013), and (1121) planes leading to concave folded shapes named 

 tents, chairs, tacos, and kites, respectively. We use the Wulff-based 

 Crystal Creator tool to expand the range of Mg crystal shapes with twinning over the known Mg twin planes, i.e., (101x)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001108881400001,

title = {Chiral Gold Nanorods with Five-Fold Rotational Symmetry and 

 Orientation-Dependent Chiroptical Properties of Their Monomers and 

 Dimers},

author = {Lingling Zhang and Yilin Chen and Jiapeng Zheng and George R. Lewis and Xinyue Xia and Emilie Ringe and Wei Zhang and Jianfang Wang},

doi = {10.1002/anie.202312615},

issn = {1433-7851},

year  = {2023},

date = {2023-12-01},

journal = {ANGEWANDTE CHEMIE-INTERNATIONAL EDITION},

volume = {62},

number = {52},

publisher = {WILEY-V C H VERLAG GMBH},

address = {POSTFACH 101161, 69451 WEINHEIM, GERMANY},

abstract = {Chiral plasmonic nanoparticles have attracted much attention because of 

 their strong chiroptical responses and broad scientific applications. 

 However, the types of chiral plasmonic nanoparticles have remained 

 limited. Herein we report on a new type of chiral nanoparticle, chiral 

 Au nanorod (NR) with five-fold rotational symmetry, which is synthesized 

 using chiral molecules. Three different types of Au seeds (Au elongated 

 nanodecahedrons, nanodecahedrons, and nanobipyramids) are used to study 

 the growth behaviors. Different synthesis parameters, including the 

 chiral molecules, surfactant, reductant, seeds, and Au precursor, are 

 systematically varied to optimize the chiroptical responses of the 

 chiral Au NRs. The chiral scattering measurements on the individual 

 chiral Au NRs and their dimers are performed. Intriguingly, the 

 chiroptical signals of the individual chiral Au NRs and their end-to-end 

 dimers are similar, while those of the side-by-side dimers are largely 

 reduced. Theoretical calculations and numerical simulations reveal that 

 the different chiroptical responses of the chiral NR dimers are 

 originated from the coupling effect between the plasmon resonance modes. 

 Our study enriches chiral plasmonic nanoparticles and provides valuable 

 insight for the design of plasmonic nanostructures with desired 

 chiroptical properties. 

 The scattering dissymmetry factor (gs-factor) peaks of the horizontal 

 chiral Au nanorods are redshifted with higher intensities compared to 

 those of the vertical chiral Au nanorods. The intensity of the chiral 

 response of the side-by-side chiral nanorod dimers is reduced because of 

 the coupling between the plasmon resonance modes.image},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001111576200002,

title = {An attacin antimicrobial peptide, Hill_BB_C10074, from \textit{Hermetia 

 illucens} with anti-\textit{Pseudomonas aeruginosa} activity},

author = {Leila Fahmy and Youssif M. Ali and David Seilly and Reece Mccoy and Roisin M. Owens and Miha Pipan and Graham Christie and Andrew J. Grant},

doi = {10.1186/s12866-023-03131-1},

issn = {1471-2180},

year  = {2023},

date = {2023-12-01},

journal = {BMC MICROBIOLOGY},

volume = {23},

number = {1},

publisher = {BMC},

address = {CAMPUS, 4 CRINAN ST, LONDON N1 9XW, ENGLAND},

abstract = {Background There is a global need to develop new therapies to treat 

 infectious diseases and tackle the rise in antimicrobial resistance. To 

 date, the larvae of the Black Solider Fly, Hermetia illucens, have the 

 largest repertoire of antimicrobial peptides derived from insects. 

 Antimicrobial peptides are of particular interest in the exploration of 

 alternative antimicrobials due to their potent action and reduced 

 propensity to induce resistance compared with more traditional 

 antibiotics.Results The predicted attacin from H. illucens, 

 Hill_BB_C10074, was first identified in the transcriptome of H. 

 illucens populations that had been fed a plant-oil based diet. In this 

 study, recombinant Hill_BB_C10074 (500 mu g/mL), was found to possess 

 potent antimicrobial activity against the serious Gram-negative 

 pathogen, Pseudomonas aeruginosa. Sequence and structural homology 

 modelling predicted that Hill_BB_C10074 formed a homotrimeric complex 

 that may form pores in the Gram-negative bacterial outer membrane. In 

 vitro experiments defined the antimicrobial action of Hill_BB_C10074 

 against P. aeruginosa and transmission electron microscopy and 

 electrochemical impedance spectroscopy confirmed the outer membrane 

 disruptive power of Hill_BB_C10074 which was greater than the 

 clinically relevant antibiotic, polymyxin B.Conclusions Combining 

 predictive tools with in vitro approaches, we have characterised 

 Hill_BB_C10074 as an important insect antimicrobial peptide and 

 promising candidate for the future development of clinical 

 antimicrobials.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001133408800001,

title = {Molecular Mechanisms of Cationic Fusogenic Liposome Interactions with 

 Bacterial Envelopes},

author = {Anna Scheeder and Marius Brockhoff and Edward N. Ward and Gabriele S. Kaminski Schierle and Ioanna Mela and Clemens F. Kaminski},

doi = {10.1021/jacs.3c11463},

issn = {0002-7863},

year  = {2023},

date = {2023-12-01},

journal = {JOURNAL OF THE AMERICAN CHEMICAL SOCIETY},

volume = {145},

number = {51},

pages = {28240-28250},

publisher = {AMER CHEMICAL SOC},

address = {1155 16TH ST, NW, WASHINGTON, DC 20036 USA},

abstract = {Although fusogenic liposomes offer a promising approach for the delivery 

 of antibiotic payloads across the cell envelope of Gram-negative 

 bacteria, there is still a limited understanding of the individual 

 nanocarrier interactions with the bacterial target. Using 

 super-resolution microscopy, we characterize the interaction dynamics of 

 positively charged fusogenic liposomes with Gram-negative (Escherichia 

 coli) and Gram-positive (Bacillus subtilis) bacteria. The liposomes 

 merge with the outer membrane (OM) of Gram-negative bacteria, while 

 attachment or lipid internalization is observed in Gram-positive cells. 

 Employing total internal reflection fluorescence microscopy, we 

 demonstrated liposome fusion with model supported lipid bilayers. For 

 whole E. coli cells, however, we observed heterogeneous membrane 

 integrations, primarily involving liposome attachment and hemifusion 

 events. With increasing lipopolysaccharide length, the likelihood of 

 full-fusion events was reduced. The integration of artificial lipids 

 into the OM of Gram-negative cells led to membrane destabilization, 

 resulting in decreased bacterial vitality, membrane detachment, and 

 improved codelivery of vancomycin-an effective antibiotic against 

 Gram-positive cells. These findings provide significant insights into 

 the interactions of individual nanocarriers with bacterial envelopes at 

 the single-cell level, uncovering effects that would be missed in bulk 

 measurements. This highlights the importance of conducting 

 single-particle and single-cell investigations to assess the performance 

 of next-generation drug delivery platforms.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001132973000001,

title = {In Vitro Models for Investigating Intestinal Host-Pathogen Interactions},

author = {Reece Mccoy and Sophie Oldroyd and Woojin Yang and Kaixin Wang and Darius Hoven and David Bulmer and Matthias Zilbauer and Roisin M. Owens},

doi = {10.1002/advs.202306727},

year  = {2023},

date = {2023-12-01},

journal = {ADVANCED SCIENCE},

publisher = {WILEY},

address = {111 RIVER ST, HOBOKEN 07030-5774, NJ USA},

abstract = {Infectious diseases are increasingly recognized as a major threat 

 worldwide due to the rise of antimicrobial resistance and the emergence 

 of novel pathogens. In vitro models that can adequately mimic in vivo 

 gastrointestinal physiology are in high demand to elucidate mechanisms 

 behind pathogen infectivity, and to aid the design of effective 

 preventive and therapeutic interventions. There exists a trade-off 

 between simple and high throughput models and those that are more 

 complex and physiologically relevant. The complexity of the model used 

 shall be guided by the biological question to be addressed. This review 

 provides an overview of the structure and function of the intestine and 

 the models that are developed to emulate this. Conventional models are 

 discussed in addition to emerging models which employ engineering 

 principles to equip them with necessary advanced monitoring capabilities 

 for intestinal host-pathogen interrogation. Limitations of current 

 models and future perspectives on the field are presented. 

 Infectious diseases are increasingly recognized as a major threat 

 worldwide due to the rise of antimicrobial resistance and the emergence 

 of novel pathogens. In vitro models that can adequately mimic in vivo 

 gastrointestinal physiology are thus in high demand. This review 

 provides an overview of such models and their applicability for 

 interrogating host-pathogen interactions.image},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001051356300001,

title = {WRAP: A wavelet-regularised reconstruction algorithm for magnetic vector 

 electron tomography},

author = {George R. Lewis and Daniel Wolf and Axel Lubk and Emilie Ringe and Paul A. Midgley},

doi = {10.1016/j.ultramic.2023.113804},

issn = {0304-3991},

year  = {2023},

date = {2023-11-01},

journal = {ULTRAMICROSCOPY},

volume = {253},

publisher = {ELSEVIER},

address = {RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS},

abstract = {Magnetic vector electron tomography (VET) is a promising technique that 

 enables better understanding of microand nano-magnetic phenomena through 

 the reconstruction of 3D magnetic fields at high spatial resolution. 

 Here we introduce WRAP (Wavelet Regularised A Program), a reconstruction 

 algorithm for magnetic VET that directly reconstructs the magnetic 

 vector potential A using a compressed sensing framework which 

 regularises for sparsity in the wavelet domain. We demonstrate that 

 using WRAP leads to a significant increase in the fidelity of the 3D 

 reconstruction and is especially robust when dealing with very limited 

 data; using datasets simulated with realistic noise, we compare WRAP to 

 a conventional reconstruction algorithm and find an improvement of ca. 

 60% when averaged over several performance metrics. Moreover, we 

 further validate WRAP's performance on experimental electron holography 

 data, revealing the detailed magnetism of vortex states in a CuCo 

 nanowire. We believe WRAP represents a major step forward in the 

 development of magnetic VET as a tool for probing magnetism at the 

 nanoscale.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001051948900001,

title = {SERS Sensing of Dopamine with Fe(III)-Sensitized Nanogaps in Recleanable 

 AuNP Monolayer Films},

author = {Marika Niihori and Tamas Foeldes and Charlie A. Readman and Rakesh Arul and David-Benjamin Grys and Bart Nijs and Edina Rosta and Jeremy J. Baumberg},

doi = {10.1002/smll.202302531},

issn = {1613-6810},

year  = {2023},

date = {2023-11-01},

journal = {SMALL},

volume = {19},

number = {48},

publisher = {WILEY-V C H VERLAG GMBH},

address = {POSTFACH 101161, 69451 WEINHEIM, GERMANY},

abstract = {Sensing of neurotransmitters (NTs) down to nm concentrations is 

 demonstrated by utilizing self-assembled monolayers of plasmonic 60 nm 

 Au nanoparticles in close-packed arrays immobilized onto glass 

 substrates. Multiplicative surface-enhanced Raman spectroscopy 

 enhancements are achieved by integrating Fe(III) sensitizers into the 

 precisely-defined <1 nm nanogaps, to target dopamine (DA) sensing. The 

 transparent glass substrates allow for efficient access from both sides 

 of the monolayer aggregate films by fluid and light, allowing repeated 

 sensing in different analytes. Repeated reusability after analyte 

 sensing is shown through oxygen plasma cleaning protocols, which restore 

 pristine conditions for the nanogaps. Examining binding competition in 

 multiplexed sensing of two catecholamine NTs, DA and epinephrine, 

 reveals their bidentate binding and their interactions. These systems 

 are promising for widespread microfluidic integration enabling a wide 

 range of continuous biofluid monitoring for applications in precision 

 health.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001090775600001,

title = {Bimetallic copper palladium nanorods: plasmonic properties and palladium 

 content effects},

author = {Andrey Ten and Claire A. West and Soojin Jeong and Elizabeth R. Hopper and Yi Wang and Baixu Zhu and Quentin M. Ramasse and Xingchen Ye and Emilie Ringe},

doi = {10.1039/d3na00523b},

issn = {2516-0230},

year  = {2023},

date = {2023-11-01},

journal = {NANOSCALE ADVANCES},

volume = {5},

number = {23},

pages = {6524-6532},

publisher = {ROYAL SOC CHEMISTRY},

address = {THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, 

 ENGLAND},

abstract = {Cu is an inexpensive alternative plasmonic metal with optical behaviour 

 comparable to Au but with much poorer environmental stability. Alloying 

 with a more stable metal can improve stability and add functionality, 

 with potential effects on the plasmonic properties. Here we investigate 

 the plasmonic behaviour of Cu nanorods and Cu-CuPd nanorods containing 

 up to 46 mass percent Pd. Monochromated scanning transmission electron 

 microscopy electron energy-loss spectroscopy first reveals the strong 

 length dependence of multiple plasmonic modes in Cu nanorods, where the 

 plasmon peaks redshift and narrow with increasing length. Next, we 

 observe an increased damping (and increased linewidth) with increasing 

 Pd content, accompanied by minimal frequency shift. These results are 

 corroborated by and expanded upon with numerical simulations using the 

 electron-driven discrete dipole approximation. This study indicates that 

 adding Pd to nanostructures of Cu is a promising method to expand the 

 scope of their plasmonic applications. 

 Cu is an inexpensive alternative plasmonic metal with optical behaviour 

 comparable to Au. Alloying with Pd imparts a catalytic surface, improves 

 environmental stability, and retains plasmonic properties.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001111117400001,

title = {Multiplexed Digital Characterization of Misfolded Protein Oligomers via 

 Solid-State Nanopores},

author = {Sarah E. Sandler and Robert I. Horne and Sara Rocchetti and Robert Novak and Nai-Shu Hsu and Marta Castellana Cruz and Z. Faidon Brotzakis and Rebecca C. Gregory and Sean Chia and Goncalo J. L. Bernardes and Ulrich F. Keyser and Michele Vendruscolo},

doi = {10.1021/jacs.3c09335},

issn = {0002-7863},

year  = {2023},

date = {2023-11-01},

journal = {JOURNAL OF THE AMERICAN CHEMICAL SOCIETY},

volume = {145},

number = {47},

pages = {25776-25788},

publisher = {AMER CHEMICAL SOC},

address = {1155 16TH ST, NW, WASHINGTON, DC 20036 USA},

abstract = {Misfolded protein oligomers are of central importance in both the 

 diagnosis and treatment of Alzheimer's and Parkinson's diseases. 

 However, accurate high-throughput methods to detect and quantify 

 oligomer populations are still needed. We present here a single-molecule 

 approach for the detection and quantification of oligomeric species. The 

 approach is based on the use of solid-state nanopores and multiplexed 

 DNA barcoding to identify and characterize oligomers from multiple 

 samples. We study alpha-synuclein oligomers in the presence of several 

 small-molecule inhibitors of alpha-synuclein aggregation as an 

 illustration of the potential applicability of this method to the 

 development of diagnostic and therapeutic methods for Parkinson's 

 disease.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001115546800001,

title = {Wear-Resistant Smart Textiles Using Nylon-11 Triboelectric Yarns},

author = {Piotr K. Szewczyk and Tommaso Busolo and Sohini Kar-Narayan and Urszula Stachewicz},

doi = {10.1021/acsami.3c14156},

issn = {1944-8244},

year  = {2023},

date = {2023-11-01},

journal = {ACS APPLIED MATERIALS & INTERFACES},

volume = {15},

number = {48},

pages = {56575-56586},

publisher = {AMER CHEMICAL SOC},

address = {1155 16TH ST, NW, WASHINGTON, DC 20036 USA},

abstract = {The ever-increasing demand for self-powered systems such as glucose 

 biosensors and mixed reality devices has sparked significant interest in 

 triboelectric generators, which hold large potential as renewable energy 

 solutions. Our study explores new methods for integrating 

 energy-harvesting capabilities into smart textiles by developing strong 

 and efficient yarns that can convert mechanical energy into electrical 

 energy through a triboelectric effect. Specifically, we focused on 

 Nylon-11 (PA11), a material known for its crystalline structure 

 well-suited for generating a powerful triboelectric response. To achieve 

 this, we created triboelectric yarns by electrospinning PA11 fibers onto 

 conductive carbon yarns, enabling energy-harvesting applications. 

 Extensive testing demonstrated that these yarns possess exceptional 

 durability, surpassing real-life usage requirements while experiencing 

 minimal degradation. Additionally, we developed a prototype haptic 

 device by interweaving tribopositive PA11 and tribonegative 

 poly-(vinylidene fluoride) (PVDF) triboelectric yarns. Our research has 

 successfully yielded durable and efficient yarns with strong 

 energy-harvesting capabilities, opening up possibilities for integrating 

 smart textiles into practical scenarios. These technologies are 

 promising steps to achieve greener and more reliable self-powered 

 systems.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{WOS:001141569300001,

title = {Quantum Plasmonics in Sub-Atom-Thick Optical Slots},

author = {Jeremy J. Baumberg and Ruben Esteban and Shu Hu and Unai Muniain and Igor V. Silkin and Javier Aizpurua and Vyacheslav M. Silkin},

doi = {10.1021/acs.nanolett.3c02537},

issn = {1530-6984},

year  = {2023},

date = {2023-11-01},

journal = {NANO LETTERS},

volume = {23},

number = {23},

pages = {10696-10702},

publisher = {AMER CHEMICAL SOC},

address = {1155 16TH ST, NW, WASHINGTON, DC 20036 USA},

abstract = {We show using time-dependent density functional theory (TDDFT) that 

 light can be confined into slot waveguide modes residing between 

 individual atomic layers of coinage metals, such as gold. As the top 

 atomic monolayer lifts a few & Aring; off the underlying bulk Au (111), 

 ab initio electronic structure calculations show that for gaps >1.5 & 

 Aring;, visible light squeezes inside the empty slot underneath, giving 

 optical field distributions 2 & Aring; thick, less than the atomic 

 diameter. Paradoxically classical electromagnetic models are also able 

 to reproduce the resulting dispersion for these subatomic slot modes, 

 where light reaches in-plane wavevectors similar to 2 nm(-1) and slows 

 to <10(-2)c. We explain the success of these classical dispersion models for gaps >= 1.5 & Aring; due to a quantum-well state forming in the 

 lifted monolayer in the vicinity of the Fermi level. This extreme 

 trapping of light may explain transient ``flare'' emission from 

 plasmonic cavities where Raman scattering of metal electrons is greatly 

 enhanced when subatomic slot confinement occurs. Such atomic 

 restructuring of Au under illumination is relevant to many fields, from 

 photocatalysis and molecular electronics to plasmonics and quantum 

 optics.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}