When biological material is frozen, cryoprotectants are used to prevent ice damage. How do newly emerging polymeric cryoprotectants control ice formation and growth during freezing?

Today we are choosing to seek out and celebrate women's achievements at Warwick Chemistry.

The discovery of how hormone-like molecules turn on antibiotic production in soil bacteria could unlock the untapped opportunities for medicines that are under our very feet.

An international team of scientists working in the Department of Chemistry, the School of Life Sciences and the Warwick Integrative Synthetic Biology Centre at the University of Warwick, UK, and Monash University, Australia, have determined the molecular basis of a biological mechanism that could enable more efficient and cost-effective production of existing antibiotics, and also allow scientists to uncover new antibiotics in soil bacteria.

It is detailed in a new study published in the journal Nature.

A new biotechnology company, CryoLogyx, has been spun-out from the department, supported from a grant from InnovateUK. Cryologyx will be led by Dr Tom Congdon (A UoW UG and PG alumus) and will exploit technology developed by the GibsonGroup. Cryologyx will use innovative macromolecular (polymeric) cryoprotectants to protect biological samples, including cells used in therapy, diagnostics and drug discovery.

Read the news story here and more details will be released soon.

Professor Matthew Gibson has been awarded the 2021 McBain medal from the Society for Chemical Industry and Royal Society of Chemistry. This award is to "honour an early career researcher or technologist who has made a meritorious contribution to colloid and interface science." There were will be a special symposia late in 2021 where Matt will receive the medal and give a lecture.

The department of Chemistry expects to appoint around 60 funded and self-funded PhD and MSc students in the 2021/2022 academic year

Glycans (aka sugars, carbohydrates) direct many recognition and signalling processes in biology. Multivalency (presentation of lots of copies) is crucial to overcome glycans intrinsic low affinity, hence materials (polymers, particles, surfaces) which display them are appealing probes of function, or as new diagnostics (e.g. see our work on COVID diagnostics). However, most studies use simple monosaccharides, which may not have selectivity or are only tested against plant proteins. In this work, we collaborated with teams from Bristol, York and Southampton - our collaborators developed a chemoenzymatic synthesis to obtainselectively fluorinated glycans based on lacto-N-biose. Fluorine is appealing as it is small, does no have significant effects on conformation, but can change hydrogen bonding patterns. These glycans were incorporated into our polymer-stabilised nanoparticle platform, and found to modulate the affinity towards 2 galectins -an important class of galactose-binding biomarkers. This work shows that unnatural glycan-functional nanoparticles could be deployed as biosensors.

Read paper.

Written, reviewed and tested by students, for students! As part of the RSC's latest series of tutorial textbooks, a team of students and staff have co-authored textbooks on Stereochemistry and Contextual Maths in Chemistry.

Warwick students Caroline Akamune and Matthew Taylor and academics Andrew Clark and Russ Kitson teamed up with Leeds student Michael Lloyd and academics Nimesh Mistry and Paul Taylor to create a new stereochemistry textbook. What makes this book different is that it is co-authored with students to be in the 'student voice' making it more accessible to the undergraduate reader. It is also written so it can be used in conjunction with a molecular modelling kit, in-line with research that shows rotating and manipulating objects (e.g. molecular models) with your hands helps with grasping spatial cognition concepts in your head!

The RSC Chemistry Student Guides series editing team includes Warwick's own Julie Macpherson.

Oxidative Addition of a Mechanically Entrapped C(sp)-C(sp) Bond to a Rhodium(I) Pincer Complex

By use of a macrocyclic phosphinite pincer ligand and bulky substrate substituents, researchers in the Chaplin group have demonstrated how the mechanical bond can be leveraged to promote the oxidative addition of an interlocked 1,3‐diyne to a rhodium(I) center. The resulting rhodium(III) bis(alkynyl) product can be trapped out by reaction with carbon monoxide or intercepted through irreversible reaction with dihydrogen, resulting in selective hydrogenolysis of the C−C σ‐bond.

HOT article in Angew. Chem. Int. Ed.