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Reversible chirality inversion of an AuAgx-cysteine coordination polymer by pH change

Author

Listed:
  • Bing Ni

    (University of Konstanz)

  • Dustin Vivod

    (Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Department of Chemistry and Pharmacy, Chair for Theoretical Chemistry/Computer Chemistry Centre (CCC) Nägelsbachstrasse 25)

  • Jonathan Avaro

    (Center for X-ray Analytics, Biomimetic Membranes and Textile, Empa, Swiss Federal Laboratories for Materials Science and Technology)

  • Haoyuan Qi

    (Technische Universität Dresden)

  • Dirk Zahn

    (Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Department of Chemistry and Pharmacy, Chair for Theoretical Chemistry/Computer Chemistry Centre (CCC) Nägelsbachstrasse 25)

  • Xun Wang

    (Tsinghua University)

  • Helmut Cölfen

    (University of Konstanz)

Abstract

Responsive chiral systems have attracted considerable attention, given their potential for diverse applications in biology, optoelectronics, photonics, and related fields. Here we show the reversible chirality inversion of an AuAgx-cysteine (AuAgx-cys) coordination polymer (CP) by pH changes. The polymer can be obtained by mixing HAuCl4 and AgNO3 with L-cysteine (or D-cysteine) in appropriate proportions in H2O (or other surfactant solutions). Circular dichroism (CD) spectrum is used to record the strong optical activity of the AuAg0.06-L-cys enantiomer (denoted as L0.06), which can be switched to that of the corresponding D0.06 enantiomer by alkalization (final dispersion pH > 13) and can be switched back after neutralization (final dispersion pH

Suggested Citation

  • Bing Ni & Dustin Vivod & Jonathan Avaro & Haoyuan Qi & Dirk Zahn & Xun Wang & Helmut Cölfen, 2024. "Reversible chirality inversion of an AuAgx-cysteine coordination polymer by pH change," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-45935-3
    DOI: 10.1038/s41467-024-45935-3
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    1. Hye-Eun Lee & Hyo-Yong Ahn & Jungho Mun & Yoon Young Lee & Minkyung Kim & Nam Heon Cho & Kiseok Chang & Wook Sung Kim & Junsuk Rho & Ki Tae Nam, 2018. "Amino-acid- and peptide-directed synthesis of chiral plasmonic gold nanoparticles," Nature, Nature, vol. 556(7701), pages 360-365, April.
    2. Prashant Kumar & Thi Vo & Minjeong Cha & Anastasia Visheratina & Ji-Young Kim & Wenqian Xu & Jonathan Schwartz & Alexander Simon & Daniel Katz & Valentin Paul Nicu & Emanuele Marino & Won Jin Choi & M, 2023. "Photonically active bowtie nanoassemblies with chirality continuum," Nature, Nature, vol. 615(7952), pages 418-424, March.
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