TY - JOUR A1 - Folikumah, Makafui Y. A1 - Behl, Marc A1 - Lendlein, Andreas T1 - Reaction behaviour of peptide-based single thiol-thioesters exchange reaction substrate in the presence of externally added thiols T2 - MRS communications / a publication of the Materials Research Society N2 - Identification of patterns in chemical reaction pathways aids in the effective design of molecules for specific applications. Here, we report on model reactions with a water-soluble single thiol-thioester exchange (TTE) reaction substrate, which was designed taking in view biological and medical applications. This substrate consists of the thio-depsipeptide, Ac-Pro-Leu-Gly-SLeu-Leu-Gly-NEtSH (TDP) and does not yield foul-smelling thiol exchange products when compared with aromatic thiol containing single TTE substrates. TDP generates an alpha,omega-dithiol crosslinker in situ in a 'pseudo intramolecular' TTE. Competitive intermolecular TTE of TDP with externally added "basic" thiols increased the crosslinker concentration whilst "acidic" thiols decreased its concentration. TDP could potentially enable in situ bioconjugation and crosslinking applications. KW - Biomaterials KW - Biomimetic KW - Mass spectrometry KW - Nuclear magnetic resonance KW - (NMR) Y1 - 2021 UR - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/62836 SN - 2159-6859 SN - 2159-6867 VL - 11 IS - 4 SP - 402 EP - 410 PB - Springer CY - Berlin ER -