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Dr. Jonathan Cormack

Dr. Jonathan Cormack

NanoDTC Student, Cohort 2009

Key Publications

Research Overview

New perspectives on the very small

Nanotubes, ranging from 2 to 50 nanometers wide and 50 nanometers to several microns long, are consistently regarded as small. Thinner than the wavelength of light, several hundred make up the width of a hair. They're small, except when they aren't. It's a matter of perspective.

Nanotubes are like planks, both are carbon based, give you nasty splinters and only really shine when you control their assembly. Nail planks together at random and, occasionally, something resembling a shed may emerge. But to build something specific, rather than get lucky, you need to cut a joint here, mount a hinge there, and fix a myriad of fasteners along fairly precise lines.

Is this possible with nanotubes and chemistry? Open a chemist's toolbox and you find molecules and bonds rather than screws and nails. Unhindered carbon-carbon bonds can be useful hinges. An azide functional group can provide half of the glue holding things together.

Having the parts is half the battle, placing them exactly is another matter. To understand this adjust your perspective to where small is very big indeed. If molecules were human, the nanotube would be as wide as the Empire State Building. The height would exceed a stack of 200 Empire State Buildings. Standing on such a stack the surroundings are near indistinguishable from space.

Placing our molecule is like ordering it to choose a building, and wave from one of the windows. Each building has 6,500 windows, making in excess of 1 million places for our molecule. Once established, verifying its location means spotting which window, of millions, has a waving molecule. This molecule won't be alone so you also need to check the colour of its shirt. If the job of checking hundreds of sky scrapers and millions of windows, for a handful of waving molecules in snazzy shirts is daunting consider another sense of scale. If you’re trying to analyse these nanotubes from the palm of your hand then it is like trying to spot waving and snazzy shirts from orbit.

This may be difficult but science has a way of making difficult into run of the mill. Conceptually the systems required to achieve this are all in place. The reference data has yet to be compiled, and that means large quantities of tedious double checking and cross-correlation. However with enough thought and with the design of elegant experiments it should be enough to tease out proof that it can be done. What I am trying to do is just this: attach my molecules to my nanotube in just the place I want, figuring out if it worked, and then using it to join nanotubes together intelligently. Whether this can be achieved in a practical manner, out in the real world and inside the time-frame of a PhD is yet to be seen. I may not be able to place molecules on a nanotube as accurately as I'd like, but that doesn't mean I shouldn't spend years trying.

Jonathan Cormack

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NanoDTC Students and Associates visit Thermo Fischer (FEI) and ASML

Jul 12, 2017

NanoDTC Students and Associates visit Thermo Fischer (FEI) and ASML to gain industry perspective of the application of Nanotechnologies

Call for Midi+PhD proposals

Dec 20, 2016

The NanoDTC invites Midi+PhD proposals from Cambridge Academics for its 2016 cohort. Submission deadline is 20th Feb 2017.

Admissions for Oct 2017 - 4th Jan Deadline

Dec 15, 2016

We are accepting applications for Oct 2017 entry. The deadline for applications to be considered in the 2nd round is 4th Jan. Please email if you have questions.

Helmholtz Prize for Nicholas Bell (NanoDTC Alumnus c2009)

Jun 27, 2016

Dr Nicholas Bell along with his PhD Supervisor Prof. Ulrich Keyser has received the 2016 Helmholtz Prize for groundbreaking work on identification and quantification of proteins in complex mixtures using nanopore sensing.