Shunan Zhao

State Key Joint Laboratory of Environment Simulation and Pollution Control

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Keith Man‐Chung Wong

Southern University of Science and Technology

Zhao‐Peng Deng

Heilongjiang University

Fangfang Wei

Hebei University of Engineering

Li‐Hua Huo

Heilongjiang University

Shiu‐Lun Lai

University of Hong Kong

Mei‐Yee Chan

University of Hong Kong

Zhu-Yan Zhang

Harbin Medical University

Shan Gao

Heilongjiang University

Ying-Hui Xiao

Qiqihar University

Zhiyuan Qian

China Academy of Space Technology

Cooperative Institutions

Chinese Academy of Sciences

Tsinghua University

Zhejiang University

University of Chinese Academy of Sciences

Southern University of Science and Technology

Shandong University

State Key Joint Laboratory of Environment Simulation and Pollution Control

Southeast University

Shanghai Jiao Tong University

Nanjing University

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Anaerobic Acidogenesis Improvement and Fermentation-Type Regulation by Quorum Sensing

ACS ES&T Engineering (2024)

Shunan Zhao Ge Song Suo Liu Jing Zhao Kai Zhao

Acidogenesis

10.1021/acsestengg.4c00220

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Citations (2)

A Deep‐Red to Near Infrared (NIR) Fluorescent Probe Based on a Sulfur‐Modified Rhodamine Derivative with Two Spirolactone Rings

ChemPlusChem (2020)

Xinyu Tian Hua-Wei Liu Fangfang Wei Wang Xiang-chuan Shunan Zhao

Abstract We report the synthesis, characterization, and photophysical and ion‐binding properties of deep‐red to near‐infrared (NIR) fluorescent rhodamine derivatives, bearing two spirolactone rings and substitution of the oxygen atoms in the xanthene ring with sulfur atoms ( 1‐S ). The diastereoisomeric cis ‐ and trans ‐forms of the rhodamine derivative were separated and the cis ‐form ( cis ‐ 1‐S ) was structurally characterized by X‐ray crystallography. Upon treatment with Hg 2+ ion, cis ‐ 1‐S was converted into the dual spirolactone ring‐opened species, resulting in significant color change and fluorescence enhancement. Substitution of the oxygen atoms with sulfur and extended π‐conjugation across the fused six‐membered rings upon the two rings‐opening processes in the presence of Hg 2+ ion led to a significant red‐shift of absorption (623 nm) and fluorescence (706 nm) peaks, compared to the ordinary rhodamine. Furthermore, the intracellular Hg 2+ ‐sensing properties of the cis ‐ 1‐S have been studied by confocal microscopy.

Xanthene

Rhodamine

Derivative (finance)

10.1002/cplu.202000384

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Citations (10)

Cold Cathode X-ray Tube with MgO Composite Gate Structure

Wanli Gao Zhuoya Zhu Xiaodie Wang Shunan Zhao Wei Lei

In a triode field emission structure, the anode current is reduced due to the trapping of the field emission electrons by the metal gate mesh. We propose a composite structure with the MgO film evaporated on the surface of metal gate. The effect of the composite gate on the field emission of the CNTs cold cathode was studied. The cold cathode X-ray tube based on the composite gate was designed. Compared with the metal gate structure, the X-ray tube using the composite gate is stable, the anode current is greatly improved, and the electron transmittance is increased by more than 30%, which can reach 80%. It can be considered that the secondary electrons emitted from the MgO film, not only compensate the intercepted current, but also become part of the emission current, thereby improving the anode current.

Triode

Cold cathode

Metal gate

10.1109/cirsyssim.2019.8935618

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CCDC 2085005: Experimental Crystal Structure Determination

The Cambridge Structural Database (2022)

Fangfang Wei Zhiyuan Qian Shiu‐Lun Lai Shunan Zhao Mei‐Yee Chan

10.5517/ccdc.csd.cc27zm73

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Design, Synthesis and Photophysical Studies of Luminescent Rhodium(III) Complexes in Near‐Infrared Region

European Journal of Inorganic Chemistry (2023)

Jingyi Lu Shunan Zhao Fangfang Wei Keith Man‐Chung Wong

Abstract A series of near‐infrared (NIR)‐emitting cyclometalated rhodium(III) complexes have been designed, synthesized and characterized. The NIR luminescence has been realized by rational design of strong σ‐donor cyclometalating (C^N) ligand with extended π‐conjugation structure for decreasing the energy level of intraligand (IL) state. In addition, the investigation of substituents on the benzo[ g ]quinoxaline moiety as the carbon‐donor demonstrated that the luminescence can be further shifted to the red by the introduction of electron‐donating thienyl groups. The luminescence maxima of these complexes are ranging from 763 nm to 792 nm with the luminescence quantum yield (Φ lum ) of 0.41 %–0.66 % in dichloromethane solution. This work demonstrates the first example of NIR‐phosphorescent rhodium(III) complexes and provides an alternative for diversifying the development of NIR materials.

Moiety

Quantum yield

Quinoxaline

Dichloromethane

10.1002/ejic.202200792

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Citations (6)

CCDC 2265665: Experimental Crystal Structure Determination

The Cambridge Structural Database (2023)

Shunan Zhao Jianfeng Song Keith Man‐Chung Wong

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/ccdc.csd.cc2g1lz3

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CCDC 1063135: Experimental Crystal Structure Determination

The Cambridge Structural Database (2016)

Fa-Yuan Ge Li‐Hua Huo Shunan Zhao Zhao‐Peng Deng Zhu-Yan Zhang

10.5517/ccdc.csd.cc14p8ps

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CCDC 2133393: Experimental Crystal Structure Determination

The Cambridge Structural Database (2022)

Fangfang Wei Zhiyuan Qian Shiu‐Lun Lai Shunan Zhao Mei‐Yee Chan

10.5517/ccdc.csd.cc29lz41

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Study on Electro-Optical Control Performance of Holographic Polymer Dispersed Liquid Crystal Grating

Yanwen Qi Bicheng Guo Zhuoya Zhu Yi Xie Shunan Zhao

Compared with ordinary volume holographic gratings, holographic polymer dispersed liquid crystal(H-PDLC) grating has the advantage of adjustable electronically controlled diffraction efficiency. In this work, we theoretically simulated the degree of refractive index modulation that affects the diffraction efficiency of holographic volume gratings. Through the interference of two symmetric laser beams, a symmetric transmission H-PDLC grating was made. The diffraction properties and electro-optical characteristics of the H-PDLC were also studied. Relevant experiments were conducted to prepare a volume holographic grating with a diffraction efficiency of 74.4% and a control amplitude of when an external 50Hz rectangular wave voltage of 40V/um was applied.

Diffraction efficiency

Electromagnetically induced grating

Ultrasonic grating

10.1109/iccss51193.2021.9464201

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Using Transparent Adhesive Tape as New Substrate for Integrated Flexible Enzymatic Sensor: Good Adhesion and Better Printability

Electroanalysis (2021)

Ke Yang Shunan Zhao Jiawei Xu Zhuoya Zhu Zhifei Wang

Abstract Substrate plays an essential role in the construction of flexible electrode and related wearable sensors. Compared with conventional flexible substrates such as Polyethylene terephthalate (PET), the common transparent adhesive tape exhibits the unique advantages in the non‐adhesive surface with good printability, allowing the conductive layer to be deposited directly on its surface, and in another adhesive surface with good fastening, thus facilitating the fabrication of as‐prepared electrode in subsequent wearable sensors. Herein, we constructed a new type of flexible sensor to detect ascorbic acid which is closely related to human health in sweat by integrating flexible electrode based on transparent adhesive tape with potentiostat that incorporate the critical signal conditioning, processing, and transmission functions. Experiment results show that resulting electrode still has the good electrochemistry performance even after 1000 bending cycles (20 % bending degrees). By connecting as‐prepared flexible electrode to the potentiostat to carry out real time analysis, the resulting sensor exhibits excellent sensitivity, detection limit and repeatability (0.15 V detection potential vs printed Ag/AgCl reference electrode, 3.8 μM detection limit, 25 μM‐1 mM linearity, and good selectivity).

Potentiostat

10.1002/elan.202100024

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Citations (1)