Professor of Physical Chemistry and Biophysics

1920 Professor of Physical Chemistry

Our research

We study the physical and chemical aspects of the behaviour of biopolymers and other soft systems. Much of our work has been focused on the physical aspects underlying the self-assembly of protein molecules. Self-organisation is the driving force generating complex matter in nature, and the process by which the machinery providing functionality in living systems is assembled. The goal of our research is to understand the physical and chemical factors which control the structures and dynamics of biomolecular assemblies, and the connections between the nanoscale characteristics of the component molecules and the physical properties of large-scale assemblies and their behaviour on a mesoscopic to macroscopic scale. The techniques used in our laboratory include biosensors, optical lithography, microfluidic devices and scanning probe microscopy and spectroscopy. We work both with natural and synthetic polymers and our interests range from fundamental chemical physics to technological applications in material science and molecular medicine.

Watch Professor Knowles discuss his research

Take a tour of the Sir Rodney Sweetnam laboratory

Publications

On-chip measurements of protein unfolding from direct observations of micron-scale diffusion
Y Zhang, EV Yates, L Hong, KL Saar, G Meisl, CM Dobson, TPJ Knowles
Chem Sci
(2018)
9
Kinetic barriers to α-synuclein protofilament formation and conversion into mature fibrils
JWP Brown, G Meisl, TPJ Knowles, AK Buell, CM Dobson, C Galvagnion
Chemical Communications
(2018)
54
Observation of molecular self-assembly events in massively parallel microdroplet arrays
Z Toprakcioglu, PK Challa, A Levin, TPJ Knowles
Lab on a chip
(2018)
18
Enhancing power density of biophotovoltaics by decoupling storage and power delivery
KL Saar, P Bombelli, DJ Lea-Smith, T Call, E-M Aro, T Müller, CJ Howe, TPJ Knowles
Nature Energy
(2018)
3
Microfluidics for Protein Biophysics
J Charmet, P Arosio, TPJ Knowles
Journal of Molecular Biology
(2017)
430
Enhanced Quality Factor Label-free Biosensing with Micro-Cantilevers Integrated into Microfluidic Systems
T Kartanas, V Ostanin, PK Challa, R Daly, J Charmet, TPJ Knowles
Anal Chem
(2017)
89
DNA-coated Functional Oil Droplets
A Caciagli, M Zupkauskas, A Levin, TPJ Knowles, C Mugemana, N Bruns, T O'Neill, WJ Frith, E Eiser
(2017)
Mechanism of biosurfactant adsorption to oil/water interfaces from millisecond scale tensiometry measurements.
L Kong, KL Saar, R Jacquat, L Hong, A Levin, H Gang, R Ye, B Mu, TPJ Knowles
Interface focus
(2017)
7
Hierarchical Biomolecular Emulsions Using 3-D Microfluidics with Uniform Surface Chemistry.
Z Toprakcioglu, A Levin, TPJ Knowles
Biomacromolecules
(2017)
18
Thermodynamics of Polypeptide Supramolecular Assembly in the Short-Chain Limit
TO Mason, TCT Michaels, A Levin, CM Dobson, E Gazit, TPJ Knowles, AK Buell
Journal of the American Chemical Society
(2017)
139

Research Interest Groups

Telephone number

01223 336344

Email address