Chiral self-sorted multifunctional supramolecular biocoordination polymers and their applications in sensors

Xiaobo Shang, Inho Song, Gwan Yeong Jung, Wanuk Choi, Hiroyoshi Ohtsu, Jeong Hyeon Lee, Jin Young Koo, Bo Liu, Jaeyong Ahn, Masaki Kawano, Sang Kyu Kwak () and Joon Hak Oh ()
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Xiaobo Shang: Pohang University of Science and Technology (POSTECH)
Inho Song: Pohang University of Science and Technology (POSTECH)
Gwan Yeong Jung: Ulsan National Institute of Science and Technology (UNIST)
Wanuk Choi: School of Environmental Science and Engineering (POSTECH)
Hiroyoshi Ohtsu: Tokyo Institute of Technology
Jeong Hyeon Lee: Ulsan National Institute of Science and Technology (UNIST)
Jin Young Koo: Pohang University of Science and Technology (POSTECH)
Bo Liu: Zhejiang University
Jaeyong Ahn: Pohang University of Science and Technology (POSTECH)
Masaki Kawano: Tokyo Institute of Technology
Sang Kyu Kwak: Ulsan National Institute of Science and Technology (UNIST)
Joon Hak Oh: Pohang University of Science and Technology (POSTECH)

Nature Communications, 2018, vol. 9, issue 1, 1-12

Abstract: Abstract Chiral supramolecules have great potential for use in chiral recognition, sensing, and catalysis. Particularly, chiral supramolecular biocoordination polymers (SBCPs) provide a versatile platform for characterizing biorelated processes such as chirality transcription. Here, we selectively synthesize homochiral and heterochiral SBCPs, composed of chiral naphthalene diimide ligands and Zn ions, from enantiomeric and mixed R-ligands and S-ligands, respectively. Notably, we find that the chiral self-sorted SBCPs exhibit multifunctional properties, including photochromic, photoluminescent, photoconductive, and chemiresistive characteristics, thus can be used for various sensors. Specifically, these materials can be used for detecting hazardous amine materials due to the electron transfer from the amine to the SBCP surface and for enantioselectively sensing a chiral species naproxen due to the different binding energies with regard to their chirality. These results provide guidelines for the synthesis of chiral SBCPs and demonstrate their versatility and feasibility for use in various sensors covering photoactive, chemiresistive, and chiral sensors.

Date: 2018
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DOI: 10.1038/s41467-018-06147-8

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