Yicheng Zhou

University of Pittsburgh

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Chun‐Long Chen

University of Washington

Jingshan S. Du

Pacific Northwest National Laboratory

Renyu Zheng

University of Washington

Yanxu Zong

Binghamton University

Shao Li

Tsinghua University

Sakshi Yadav

Pacific Northwest National Laboratory

Shuai Zhang

Zhengzhou University of Light Industry

Biao Jin

Pacific Northwest National Laboratory

Changning Li

Guangxi Academy of Agricultural Science

Jim De Yoreo

Pacific Northwest National Laboratory

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Pacific Northwest National Laboratory

University of Washington

Shanghai University of Electric Power

Chinese Academy of Sciences

Physical Sciences (United States)

Nanjing Forestry University

Collaborative Innovation Center of Chemistry for Energy Materials

University of Science and Technology of China

Huaiyin Normal University

Binghamton University

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Data for EMSL Project 60224 from September 2022

OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (2022)

Jim De Yoreo Chun‐Long Chen Biao Jin Yicheng Zhou Md Emtias Chowdhury

10.25582/data.2022-09.2612356/2198235

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Photoinduced liquid crystal blue phase by bent-shapedcisisomer of the azobenzene doped in chiral nematic liquid crystal

Liquid Crystals (2013)

Yeping Wu Yicheng Zhou Leicheng Yin Gang Zou Qijin Zhang

A photoresponsive azobenzene molecule DCAZO2 with two cholesteryl groups linked to both sides of the azobenzene group is doped in a mixture of nematic liquid crystal E7 and chiral dopant S811 (61.9 wt% E7, 36.1 wt% S811 and 2.0 wt% DCAZO2). Cooled from isotropic phase to 33.0°C, chiral nematic liquid crystal (N*LC) was formed in the sample and then the temperature was kept unchanged at 33.0°C. UV light irradiation induces the trans–cis photoisomerisation and thus an obvious phase transition. When the azobenzene groups isomerise to a cis-saturated state, the UV light was turned off and the white light was turned on at the same time. The bent-shaped cis isomer then turns back to the planar trans isomer gradually. A blue–green platelet texture representing cubic blue phase (BP) was observed and the size of the platelets was increased along with the cis–trans isomerisation. UV–vis absorption spectra indicate that the photoinduced BP exists when the isomerisation degree is between 79% and 18%, and further cis–trans isomerisation change BP back into N*LC. The large geometric structure of the cholesteryl groups and the large bent angle θ of the cis isomer are supposed to be responsible for the interesting result.

Azobenzene

Cis–trans isomerism

Crystal (programming language)

10.1080/02678292.2013.783937

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Citations (19)

Data for EMSL Project 60224 from September 2022

OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (2022)

Jim De Yoreo Chun‐Long Chen Biao Jin Yicheng Zhou Md Emtias Chowdhury

10.25582/data.2022-09.2606810/2198236

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Citations (0)

Data for EMSL Project 60224 from June 2022

OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (2022)

Jim De Yoreo Chun‐Long Chen Biao Jin Yicheng Zhou Md Emtias Chowdhury

10.25582/data.2022-06.2526472/2198232

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Iridium(I)-catalyzed deoxgenation of fluoroalkylsulfoxides with dimethyl diazomalonate to access fluoroalkylthioethers

Chinese Chemical Letters (2022)

Wenqing Lu Wenlin Li Yicheng Zhou Yongbin Xie Wenbo Chen

10.1016/j.cclet.2022.02.061

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Citations (3)

Data for EMSL Project 60224 from June 2022

OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (2022)

Jim De Yoreo Chun‐Long Chen Biao Jin Yicheng Zhou Md Emtias Chowdhury

10.25582/data.2022-06.2526471/2198233

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Amine-functionalized cellulose/UiO-66 composite membrane for facilitated CO2 transport

Journal of Membrane Science (2024)

Mingmin Jia Xiong‐Fei Zhang Yicheng Zhou Hengyang Mao Yijiang Zhao

Barrer

Bacterial Cellulose

10.1016/j.memsci.2024.122532

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Assembly of short amphiphilic peptoids into nanohelices with controllable supramolecular chirality

Nature Communications (2024)

Renyu Zheng Mingfei Zhao Jingshan S. Du Tarunya Rao Sudarshan Yicheng Zhou

Abstract A long-standing challenge in bioinspired materials is to design and synthesize synthetic materials that mimic the sophisticated structures and functions of natural biomaterials, such as helical protein assemblies that are important in biological systems. Herein, we report the formation of a series of nanohelices from a type of well-developed protein-mimetics called peptoids. We demonstrate that nanohelix structures and supramolecular chirality can be well-controlled through the side-chain chemistry. Specifically, the ionic effects on peptoids from varying the polar side-chain groups result in the formation of either single helical fiber or hierarchically stacked helical bundles. We also demonstrate that the supramolecular chirality of assembled peptoid helices can be controlled by modifying assembling peptoids with a single chiral amino acid side chain. Computational simulations and theoretical modeling predict that minimizing exposure of hydrophobic domains within a twisted helical form presents the most thermodynamically favorable packing of these amphiphilic peptoids and suggests a key role for both polar and hydrophobic domains on nanohelix formation. Our findings establish a platform to design and synthesize chiral functional materials using sequence-defined synthetic polymers.

Peptoid

Supramolecular chirality

Chirality

Side chain

Supramolecular assembly

10.1038/s41467-024-46839-y

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Citations (7)

Data for EMSL Project 60224 from June 2022

OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (2022)

Jim De Yoreo Chun‐Long Chen Biao Jin Yicheng Zhou Md Emtias Chowdhury

10.25582/data.2022-06.2527964/2198234

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Highly stable and tunable peptoid/hemin enzymatic mimetics with natural peroxidase-like activities

Nature Communications (2022)

Tengyue Jian Yicheng Zhou Peipei Wang Wenchao Yang Peng Mu

Abstract Developing tunable and stable peroxidase mimetics with high catalytic efficiency provides a promising opportunity to improve and expand enzymatic catalysis in lignin depolymerization. A class of peptoid-based peroxidase mimetics with tunable catalytic activity and high stability is developed by constructing peptoids and hemins into self-assembled crystalline nanomaterials. By varying peptoid side chain chemistry to tailor the microenvironment of active sites, these self-assembled peptoid/hemin nanomaterials (Pep/hemin) exhibit highly modulable catalytic activities toward two lignin model substrates 2,2-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) and 3,3’,5,5’-tetramethylbenzidine. Among them, a Pep/hemin complex containing the pyridyl side chain showed the best catalytic efficiency ( V max / K m = 5.81 × 10 −3 s −1 ). These Pep/hemin catalysts are highly stable; kinetics studies suggest that they follow a peroxidase-like mechanism. Moreover, they exhibit a high efficacy on depolymerization of a biorefinery lignin. Because Pep/hemin catalysts are highly robust and tunable, we expect that they offer tremendous opportunities for lignin valorization to high value products.

Hemin

Depolymerization

Peptoid

Nanomaterials

10.1038/s41467-022-30285-9

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Citations (60)