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Instruments / Technical Area	Publication Details	Published	Actions
B21-High Throughput SAXS	Isotopic control over self-assembly in supramolecular gels Kate Mcauley , Han Wang , Ana M. Fuentes-Caparros , Lisa Thomson , Nikul Khunti , Nathan P. Cowieson , Honggang Cui , Annela Seddon , Dave J. Adams Langmuir DOI: 10.1021/acs.langmuir.0c01552 Open Access Show Abstract ▼ Abstract: It is common to switch between H2O and D2O when examining peptide-based systems with the assumption being that there are no effects from this change. Here, we describe the effect of changing from H2O to D2O in a number of low molecular weight dipeptide-based gels. Gels are formed by decreasing the pH. In most cases, there is little dif-ference in the structures formed at high pH, but this is not universally true. On lowering the pH, the ki-netics of gelation are affected and, in some cases, the structures underpinning the gel network are dif-ferent. Where there are differences in the self-assembled structures, the resulting gel properties are different. We therefore show isotopic control over gel properties is possible.	Jul 2020
B21-High Throughput SAXS	Controlling the properties of the micellar and gel phase by varying the counterion in functionalised-dipeptide systems Kate Mcaulay , Pedro Agís Ucha , Han Wang , Ana M. Fuentes-Caparros , Lisa Thomson , Osama Maklad , Nikul Khunti , Nathan Cowieson , Matthew Wallace , Honggang Cui , Robert J. Poole , Annela Seddon , Dave J. Adams Chemical Communications 97 DOI: 10.1039/D0CC01252A Diamond Proposal Number(s): [19847] Open Access Show Abstract ▼ Abstract: The micellar aggregates formed at high pH for dipeptide-based gelators can be varied by using different alkali metal salts to prepare the solutions. The nature of the micellar aggregates directly affects the properties of the resulting gels.	Mar 2020

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