A5111682076- Advanced Sensor and Energy Harvesting Materials
- Block Copolymer Self-Assembly
- Molecular Sensors and Ion Detection
- Advanced Chemical Sensor Technologies
- Supramolecular Self-Assembly in Materials
- Liquid Crystal Research Advancements
- Supramolecular Chemistry and Complexes
- Polymer crystallization and properties
- Electrochemical Analysis and Applications
- Surfactants and Colloidal Systems
- Aerogels and thermal insulation
- Supercapacitor Materials and Fabrication
- Photoreceptor and optogenetics research
- Modular Robots and Swarm Intelligence
- Polydiacetylene-based materials and applications
- Molecular spectroscopy and chirality
- Conducting polymers and applications
- Luminescence and Fluorescent Materials
- Advanced Materials and Mechanics
- Tactile and Sensory Interactions
- Polymer Nanocomposites and Properties
- Electrochemical sensors and biosensors
- Advanced Polymer Synthesis and Characterization
- Surface Chemistry and Catalysis
- Biosensors and Analytical Detection
Chengdu University
2025
University of Illinois Urbana-Champaign
1993-2024
Miniaturized triblock copolymers have been found to self-assemble into nanostructures that are highly regular in size and shape. Mushroom-shaped supramolecular structures of about 200 kilodaltons form by crystallization the chemically identical blocks self-organize films containing 100 or more layers stacked a polar arrangement. The material exhibits spontaneous second-harmonic generation from infrared green photons has an adhesive tape-like character with nonadhesive-hydrophobic...
Food waste is an enormous challenge, with implications for the environment, society, and economy. Every year around world, 1.3 billion tons of food are wasted or lost, waste-associated costs $2.6 trillion. Waste upcycling has been shown to mitigate these negative impacts. This study's optimized pomelo-peel biomass-derived porous material-based triboelectric nanogenerator (PP-TENG) had open circuit voltage 58 V a peak power density 254.8 mW/m2. As structures enable such devices respond...
Abstract Electrochemical sensors, as a fast, accurate, and stable type of sensor, process wide applications promising development prospects in various scenarios such environmental monitoring, medical diagnosis, food safety. The generated electrical signals by reactions between electrode materials targeted analytes enable quantitative or qualitative analysis the target substances, which always displays more efficient, highly sensitive, portable compared to traditional detection methods...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBulk Synthesis of Two-Dimensional Polymers: The Molecular Recognition ApproachS. I. Stupp, S. Son, L. Li, H. C. Lin, and M. KeserCite this: J. Am. Chem. Soc. 1995, 117, 19, 5212–5227Publication Date (Print):May 1, 1995Publication History Published online1 May 2002Published inissue 1 1995https://pubs.acs.org/doi/10.1021/ja00124a005https://doi.org/10.1021/ja00124a005research-articleACS PublicationsRequest reuse permissionsArticle...
Abstract Woody biomass is an abundant renewable resource. In this study, aerogels for versatile triboelectric devices are fabricated from poplar via a dissolution‐and‐regeneration method with concentrated lithium bromide solution as the solvent. To improve aerogels' structural homogeneity, two treatments—ball‐milling raw woody before its dissolution, and, separately, ultrasonication following dissolution—were applied. These treatments altered porous structures and mechanical properties of...
A mesogen-substituted polydiacetylene which self-assembles into stacks of bilayered two-dimensional structures was investigated by X-ray and electron diffraction as well microscopy. The multilayered bilayers were found to organize single crystals with an orthorhombic unit cell. Within each structure, the polyconjugated backbones are oriented along either two ab plane face diagonal directions, substituted side chains parallel layer normal (c-axis direction). layered single-crystal form blue...
Abstract Two novel smectic bilayer structures have been identified in an enantiomerically enriched chiral side chain polymer containing the highly dipolar nitrile group at stereocentres. The were characterized by electron diffraction, microscopy, and X-ray diffraction. In both phases each layer has a structure with backbones spacers confined thin disordered region between two sublayers of mesogenic segments. One which we denote as CrE∗ unusual feature having its chains arranged parallel to...
Several non-crystalline ordered structures are known in polymer science; these include liquid crystalline and long range microdomain of amorphous block copolymers with well defined lengths. It would be very interesting to combine two types together form a copolymer which rigid board-like or rod-like mesogen is connected coil-like chain. These copolymers, containing mesogenic short polyisoprene (PI), polystyrene (PS) diblock sequence have been synthesized our laboratory. The chemical...
In earlier work, we showed that the rodcoil copolymer (I), containing a rigid board-like mesogenic block connected to flexible coil-like diblock of approximately 7 isoprene and styrene units, undergoes microphase separation in thin films cast from solution. The exhibit lamellar morphology with core sublayer, polyisoprene (PI) sublayer polystyrene (PS) alternating along normal layers. If ratio molecular volume chain could be increased certain value different would expected. After...