A5081692634- Polydiacetylene-based materials and applications
- Photoreceptor and optogenetics research
- Photonic and Optical Devices
- Advanced Fiber Optic Sensors
- Luminescence and Fluorescent Materials
- Supramolecular Self-Assembly in Materials
- Photochromic and Fluorescence Chemistry
- Advanced Fiber Laser Technologies
- Electrochemical sensors and biosensors
- Molecular Sensors and Ion Detection
- Advanced Photonic Communication Systems
- Optical Network Technologies
- Photonic Crystal and Fiber Optics
- Graphene and Nanomaterials Applications
- Analytical Chemistry and Sensors
- Electrospun Nanofibers in Biomedical Applications
- Alzheimer's disease research and treatments
- Photopolymerization techniques and applications
- Carbon and Quantum Dots Applications
- Autophagy in Disease and Therapy
- Organic Electronics and Photovoltaics
- Biosensors and Analytical Detection
- Synthesis of Indole Derivatives
- Mechanical and Optical Resonators
- Nanowire Synthesis and Applications
Northumbria University
2024
Shanxi Medical University
2024
Guangdong University of Technology
2017-2023
University of Edinburgh
2022-2023
University of Science and Technology of China
2012-2019
Collaborative Innovation Center of Chemistry for Energy Materials
2015-2019
Hefei University
2016
Hefei University of Technology
2014
Abstract Polymeric fibres with small radii (such as 125 nm) are delicate to handle and should be laid down on a solid substrate obtain practical devices. However, placing these nanofibres commonly used glass substrates prevents them from guiding light. In this study, we numerically experimentally demonstrate that when the nanofibre is placed suitable dielectric multilayer, it supports guided mode, Bloch surface wave (BSW) confined in one dimension. The physical origin of new mode discussed...
Development of novel one-dimensional (1D) solid sensors for the highly selective and sensitive detection 2,4,6-trinitrophenol (TNP) in aqueous media has attracted considerable attention. Herein, we describe how fabricated a polydiacetylene (PDA) microtube demonstrated that single PDA optical waveguide could serve as sensor with fast response high selectivity TNP probing. The use not only bestows small footprint, sensitivity, but also enables its integration into chip real-time remote near future.
Photoresponsive fluorochromic materials are regarded as an effective means for information storage. Their reversible changes of color and fluorescence facilitate the storage process increase possible capacity. Here, we propose optically reconfigurable Förster resonance energy transfer (FRET) to realize tunable emissions based on photochromic spiropyrans common fluorophores. The kinetics photoisomerization spiropyran FRET composite were systematically investigated. Through tuning ratios...
A great deal of effort has been invested in developing easy-to-use colorimetric and fluorometric probes for the detection cyanide anions (CN−) due to their extremely toxic effects. However, most current are insoluble water, limiting practical application. Herein, fabrication spiropyran functionalized polydiacetylene (SPFPDA) vesicles selective sensitive CN− HEPES buffered aqueous solution is described. The present limit 5 × 10−7 M. Their excellent selectivity sensitivity mainly attributed...
Abstract Circularly polarized light (CPL) is considered to be a true chiral entity and has been suggested as an explanation for the introduction of initial biases into key biomolecular building blocks. CPL used recently asymmetric photochemical reactions wavelengths mainly in UV visible regions, whereas natural observed star‐forming regions Orion constellation falls IR region. Whether or near‐IR region could utilized trigger remains determined. Herein, it demonstrated that enantioselective...
Diabetes patients need to monitor blood glucose all year round. In this article, a novel scheme is proposed for detection. The sensor based on U-shaped microfiber prepared using hydrogen-oxygen flame-heating technology, and then 3-aminopropyltriethoxysilane (APTES) oxidase (GOD) are successively coated the surface of via coating technique. reacts with GOD produce gluconic acid, which changes effective refractive index shifts interference wavelength. structure morphology were characterized...
Optical modulation of waveguiding and logic operations play significant roles in highly integrated optical communication components, computing, photonic circuits. Herein, we designed synthesized spiropyran-functionalized polydiacetylene (SFPDA) microtubes, realized reversible SFPDA microtubes through fluorescence resonance energy transfer (FRET) between the PDA matrix spiropyran open merocyanine (MC) form within surface microtubes. Because isomerization characteristics units, have...
Programmable materials and reconfigurable photonic components, which can change their physicochemical properties functionalities upon external stimuli, are a major topic of interest in modern science. However, most conventional components rely heavily on mechanical deformation, restricting application. Herein, novel strategy based dynamically tunable fluorescence resonance energy transfer process to design fabricate programmable fluorescent micropatterns within single polymer microfiber is...
Here, a novel multi‐stimuli‐responsive fluorescence probe is developed by incorporating spiropyran group into the coumarin‐substituted polydiacetylene (PDA) vesicles. The of PDA can be turned on upon heating, and quenched exposure to UV light irradiation or pH stimuli owing fluorescene resonance energy transfer (FRET) between red‐phase open merocyanine (MC) form spiropyran. Moreover, we have designed experimentally realized set logic gate operations for first time based modulation system...
Abstract Tissue engineering scaffolds provide an encouraging alternative for nerve injuries due to their biological support cell growth, which can be used neuronal repair. Nerve cells have been reported mostly cultured on 2D that cannot mimic the native extracellular matrix. Herein, highly ordered 3D are fabricated culture by melt electrospinning writing, microstructures and geometries of could well modulated. An effective strategy scaffold surface modification promote growth is proposed....
A new stimuli-responsive compound whose optical properties were significantly affected by acid was synthesized, combined with spiropyran and used for high-level information encryption taking advantage of their orthogonal responsiveness to external stimuli.
We propose and demonstrate a sensitive vector twist sensor based on small period long fiber grating (SP-LPFG) fabricated with femtosecond (fs) laser. The SP-LPFG is compact in size (2.8 mm) shows strong polarization dependent peaks its transmission spectrum due to the vectorial behavior of high-order cladding modes. Twist sensing realized by monitoring peaks, since input light changes twist. proposed can be interrogated peak intensity wavelength, high sensitivity that reaches 0.257 dB/deg...
Controlled Polarization Sensitivity of an active polymer microfiber has been proposed and realized with the electrospun method. The fluorescence intensity guiding through this shows high sensitivity to polarization state excitation light. What is more, out-coupled from tip can be designed state. Principle these phenomena lies on ordered controlled orientation polydiacetylene (PDA) main chains inside microfiber.
Abstract Herein, we synthesize a coumarin‐substituted diacetylene monomer (CODA) and report the novel photo‐controlled reversible assembly disassembly behavior of polymerized CODA (PCODA) vesicles. The photo‐triggered dimerization cleavage reactions coumarin groups within surface adjacent PCODA vesicles can be utilized as driving force to induce Moreover, boundary in aggregates becomes more obscure when irradiation time exceeds 30 min. Fusion occurs upon close docking target membranes,...
Reversible electrical modulation of waveguiding in a 1D viologen-modified PDA microtube based on fluorescence resonance energy transfer. By applying voltage, the emission at tip VFPDA was decreased (−1.5 V), or returned to original values (1.5 V).
We report on the detailed analyses of mode coupling from fiber core to cladding in excessively tilted gratings (ETFGs). Cladding modes responsible for typical dual peak pairs transmission spectrum ETFGs are identified with phase matching condition, which suggests two set generated even and odd azimuthal order. The polarization dependence those also investigated by calculating coefficients orthogonal polarizations. With calculated coefficients, measured dependent spectra can be reproduced numerically.
The discovery of a new type soliton occurring in periodic systems is reported. This nonlinear excitation exists at Dirac point photonic band structure, and features an oscillating tail that damps algebraically. Solitons are localized states traditionally supported by bandgaps. Here, it found besides bandgaps, the structure triangular optical lattices can also sustain solitons. Apart from their theoretical impact within theory, they have many potential uses because such solitons possible both...