A5100327452- Luminescence and Fluorescent Materials
- Synthesis and properties of polymers
- Supramolecular Self-Assembly in Materials
- Photochromic and Fluorescence Chemistry
- Geochemistry and Geochronology of Asian Mineral Deposits
- Dendrimers and Hyperbranched Polymers
- Geochemistry and Geologic Mapping
- Photochemistry and Electron Transfer Studies
- Porphyrin and Phthalocyanine Chemistry
- Polydiacetylene-based materials and applications
- Molecular Sensors and Ion Detection
- Synthesis and Properties of Aromatic Compounds
- Conducting polymers and applications
- Geological and Geochemical Analysis
- Organic Light-Emitting Diodes Research
- Radical Photochemical Reactions
- Liquid Crystal Research Advancements
- Geoscience and Mining Technology
- Advanced Polymer Synthesis and Characterization
- Nanoplatforms for cancer theranostics
- Carbon dioxide utilization in catalysis
- Crystallization and Solubility Studies
- Organometallic Complex Synthesis and Catalysis
- Fungal Biology and Applications
- Advanced Materials and Mechanics
Tianjin University
2014-2025
Peking University
2004-2024
Chongqing University
2024
Jining Medical University
2024
Shenyang University of Chemical Technology
2024
Institute of Archaeology
2024
Harbin Institute of Technology
2024
State Key Laboratory of Chemical Engineering
2022-2023
Collaborative Innovation Center of Chemical Science and Engineering Tianjin
2018-2022
Beijing Institute of Technology
2022
Wedge- and dumbbell-shaped amphiphilic perylene bisimides PBI 1−4 were synthesized. The wedge-shaped 1 2 4 self-assemble into micelles, rod aggregates in aqueous solution, respectively. Interestingly, the co-self-assembly of with 3 generates hollow vesicles bilayer structures because curvature changes during self-assembly process. could be stabilized by situ photopolymerization.
Abstract New synthetic methodologies for the formation of block copolymers have revolutionized polymer science within last two decades. However, supramolecular composed alternating sequences larger segments has not been realized yet. Here we show by transmission electron microscopy (TEM), 2D NMR and optical spectroscopy that different perylene bisimide dyes bearing either a flat (A) or twisted (B) core self-assemble in water into with an sequence (A m BB) n . The highly defined ultralong...
A new perylene bisimide dye has been synthesized that forms highly fluorescent J-aggregates in various organic solvents and its gelation polar like acetone dioxane is observed (see figure), whilst anisotropic viscous lyotropic mesophases are created apolar such as n-hexane or methylcyclohexane. Supporting information for this article available on the WWW under http://www.wiley-vch.de/contents/jc_2111/2008/z800915_s.pdf from author. Please note: The publisher not responsible content...
Water-soluble perylene tetracarboxylic acid bisimides (PBIs) with terminally linked polyglycerol dendrons of four different generations have been synthesized. These PBI dyes reveal a strong dendritic effect, enabling outstanding fluorescence quantum yields in water up to almost 100% for the highest dendron generation.
Abstract Dye aggregates are becoming increasingly attractive for diverse applications, in particular as organic electronic and sensor materials. However, the growth processes of such from molecular to small assemblies up nanostructures is still not properly understood, limiting design materials’ functional properties. Here we elucidate supramolecular process an outstanding class dyes, perylene bisimides (PBIs), by transmission electron microscopy (TEM), cryogenic scanning (cryo‐SEM), atomic...
Conductive tubes: Self-assembled nanotubes of a bacteriochlorophyll derivative are reminiscent natural chlorosomal light-harvesting assemblies. After deposition on substrate that consists non-conductive silicon oxide surface (see picture, brown) and contacting the chlorin nanowires to conductive polymer (yellow), they show exceptional charge-transport properties.
Abstract Permanent magnets are essential components for many biomedical systems and electromechanical devices, which may be made into flexible formats to achieve wearable monitoring effective integration with biological tissues. However, the development of high‐performance permanent is challenging due their ultrathin geometries, contradict thickness‐dependent magnetic properties. In addition, membranes controllable sequences polarities difficult achieve. Here, origami techniques enhanced...
4,4-Difluoro-4-bora-3a,4a-diaza-sindacene (BODIPY) is a sort of photofunctional dye which possesses advantages including strong light-capturing property, high photon-resistance, etc. Meso-N substituted aza-BODIPY crucial derivative BODIPY scaffold that has the favorable optical properties and significant spectral redshift. The photophysical can be tuned by molecular design, attenuation path excited state energy release absorbed light well controlled via structural modifications, enabling...
Inonotus obliquus is a medicinal mushroom that has been used as an effective agent to treat various diseases such diabetes, tuberculosis and cancer. In order elucidate the active fraction its constituents, effects of ethyl acetate from I. (EAFI) on hyperglycaemia were investigated main constituents EAFI isolated identified.EAFI treatment led significant decrease in blood glucose level (P < 0.05) alloxan-induced diabetic mice. It significantly decreased total cholesterol serum, increased...
A series of four spermine-functionalized perylene bisimide dyes without linkers (1) and with (2-4) between the chromophore polyamine was synthesized. Protonation spermine moieties resulted in formation highly water-soluble up to six positively charged ammonium ions. The aggregation behavior these strongly fluorescent bola-amphiphiles studied pure water as solvent by UV/Vis fluorescence spectroscopy, an astonishingly high quantum yield Phi(fl)=0.90 observed for PBI 1. Atomic force microscopy...
We have synthesized three new carbazole-based fluorescent boronic acid sensors to investigate the fluorescence transduction efficiency of novel d-PET effect, in which fluorophore acts as electron donor and protonated amine/boronic group acceptor photoinduced transfer process (PET). Aryl ethynyl groups are attached at 3,6-position carbazole (aryl = 4-dimethylaminophenyl for sensor 1 or phenyl 2). Sensor 3 is without 3,6-substitutions. The phenylboronic moiety 9-position (N-atom) these...
Biscarbazole-loaded perylene bisimide (PBI) dye micelles in water afforded a fluorescence resonance energy transfer (FRET)-based white-light emitting nano luminary system with biscarbazoles as donors and PBI acceptors.
Noncompressible hemorrhage is a major cause of posttrauma death and occupies the leading position among potentially preventable trauma-associated deaths. Recently, multiple studies have shown that strongly adhesive materials can serve as hemostatic for noncompressible hemorrhage. However, risk severe tissue adhesion limits use hydrogels materials. Here, we report promising material system comprising an injectable sol liquid spray potential solution. Injectable mainly composed gelatin (GEL)...
With the depletion of petroleum resources, development biobased vinyl ester resins as an alternative to petroleum-derived inspires researchers. However, with good thermal-mechanical properties, flame retardancy, and smoke suppression is in its infancy. In this work, resin monomer (((oxybis(4,1-phenylene))bis(azaneylylidene))bis(methaneylylidene))bis(2-methoxy-4,1-phenylene)bis(2-methylacrylate) (OBBBMA) a Schiff base structure was prepared from renewable vanillin via two-step reaction. The...
PAMAM dendrimers of the zeroth to fifth generation (G0-5) have been peripherally modified with phenyl, naphthyl, pyrenyl, and dansyl chromophores. Their fluorescence behaviors are strongly affected by dendritic architectures at different generations. These hydrophobic chromphores can self-organize into vesicular aggregates low generations G0-3 in water. The size aggregation number these vesicles decrease increasing from G0 G3. Critical concentration determined spectroscopy reveals that be...
An efficient chemical reduction protocol has been developed for the synthesis of hyaluronic acid-coated silver nanoparticles (HA-Ag NPs) that are spherical, ultrasmall and monodisperse. The as-synthesized HA-Ag NPs not only exhibited excellent long-term stability low cytotoxicity but also could be used as a nanoplatform X-ray computed tomography (CT) single-photon emission (SPECT) imaging after being radiolabeled with 99mTc.
The self-assembly of the l-alanine derived zwitterion 3 leads to formation soft vesicles in solution even though this surprisingly small molecule does not possess classical amphiphilic features other vesicle-forming monomers.
A new wideband predictive ldquodouble-pirdquo equivalent-circuit model for on-chip spiral inductors is presented, in which the parameters are analytically calculated with layout and process parameters. In model, five major parasitic effects, including skin effect, proximity distributed substrate capacitive loss, inductive implemented together. Considering effect simultaneously, a equation of high-frequency resistance proposed, accordingly, two coupled transformer loops developed,...
Two new dyes, consisting of an aromatic amine donor and dansyl acceptor connected by Diels–Alder bonds, display a switchable energy transfer. Dynamic covalent properties enable the mutual conversion two dyes maleimide exchanges.