Engineered Anchor Peptide LCI with a Cobalt Cofactor Enhances Oxidation Efficiency of Polystyrene Microparticles

Abstract: A typical component of polymer waste is polystyrene (PS) used in numerous applications, but degraded only slowly in the environment due to its hydrophobic properties. To increase the reactivity of polystyrene, polar groups need to be introduced. Here, biohybrid catalysts based on the engineered anchor peptide LCI_F16C are presented, which are capable of attaching to polystyrene microparticles and hydroxylating benzylic C−H bonds in polystyrene microparticles using commercially available oxone as oxidant. LCI peptides achieve a dense surface coverage of PS through monolayer formation within minutes in aqueous solutions at ambient temperature. The catalytically active cobalt cofactor Co‐L1 or Co‐L2 with a modified NNNN macrocyclic TACD ligand (TACD=1,4,7,10‐tetraazacyclododecane) is covalently bound to the anchor peptide LCI through a maleimide linker. Compared to the free cofactors, a 12‐ to 15‐fold improvement in catalytic activity using biohybrid catalysts based on LCI_F16C was observed.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Engineered Anchor Peptide LCI with a Cobalt Cofactor Enhances Oxidation Efficiency of Polystyrene Microparticles ; day:19 ; month:02 ; year:2024 ; extent:7
Angewandte Chemie / International edition. International edition ; (19.02.2024) (gesamt 7)

Creator
Wang, Dong
Ingram, Aaron A.
Luka, Julian
Mao, Maochao
Ahrens, Leon
Bienstein, Marian
Spaniol, Thomas Paul
Schwaneberg, Ulrich
Okuda, Jun

DOI
10.1002/anie.202317419
URN
urn:nbn:de:101:1-2024022114442173016549
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
14.08.2025, 10:50 AM CEST

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