A5102147930- Asphalt Pavement Performance Evaluation
- Dental materials and restorations
- Infrastructure Maintenance and Monitoring
- Polymer composites and self-healing
- Polymer Surface Interaction Studies
- Advanced Polymer Synthesis and Characterization
- Phase Change Materials Research
- Bone Tissue Engineering Materials
- Hydrogels: synthesis, properties, applications
- Endodontics and Root Canal Treatments
- Enzyme Catalysis and Immobilization
- Calcium Carbonate Crystallization and Inhibition
- Microbial Metabolic Engineering and Bioproduction
- Postharvest Quality and Shelf Life Management
- Dental Erosion and Treatment
- Electrochemical sensors and biosensors
- Advanced Sensor and Control Systems
- Tribology and Lubrication Engineering
- Orthopaedic implants and arthroplasty
- Conducting polymers and applications
- Advanced materials and composites
- High voltage insulation and dielectric phenomena
- Dental Radiography and Imaging
- Synthetic Organic Chemistry Methods
- Block Copolymer Self-Assembly
Guiyang Medical University
2025
Chongqing Jiaotong University
2013-2024
Chongqing University of Science and Technology
2023-2024
Nanjing University of Science and Technology
2024
Institute of Geographic Sciences and Natural Resources Research
2021-2023
Sino-Danish Centre for Education and Research
2023
Guangdong Pharmaceutical University
2020-2022
Zhongkai University of Agriculture and Engineering
2008-2021
Chinese Academy of Sciences
2005-2021
University of Chinese Academy of Sciences
2021
Here we report the synthesis and characterization of pH-responsive, self-healing hydrogels based on boronate–catechol complexation.
Transient network hydrogels cross-linked through histidine–divalent cation coordination bonds were studied by conventional rheologic methods using histidine-modified star poly(ethylene glycol) (PEG) polymers. These materials inspired the mussel, which is thought to use histidine–metal impart self-healing properties in mussel byssal thread. Hydrogel viscoelastic mechanical as a function of metal, pH, concentration, and ionic strength. The equilibrium metal-binding constants determined dilute...
Immobilization of lipase on appropriate solid supports is one way to improve their stability and activity, can be reused for large scale applications. A sample, cost- effective high loading capacity method still challenging.A facile immobilization was developed in this study, by the use polydopamine coated magnetic nanoparticles (PD-MNPs). Under optimal conditions, 73.9% available immobilized PD-MNPs, yielding a as 429 mg/g. Enzyme assays revealed that PD-MNPs displayed enhanced pH thermal...
Abstract The mechanical holdfast of the mussel, byssus, is processed at acidic pH yet functions alkaline pH. Byssi are enriched in Fe 3+ and catechol‐containing proteins, species with chemical interactions that vary widely over range byssal processing. Currently, link between pH, ‐catechol reactions, function poorly understood. Herein, it described how influences performance materials formed by reacting synthetic catechol polymers . Processing polymer through a mussel‐mimetic...
Growing evidence supports a critical role of dynamic metal-coordination crosslinking in soft biological material properties such as self-healing and underwater adhesion
Increasing evidence suggests that phenylalanine ammonia‐lyase (PAL, EC 4.3.1.5) is associated with low temperature stress in plant tissues. Banana fruit are highly susceptible to chilling injury. However, little known about the role of PAL (i.e. gene expression, protein level and activity) chilling. In this work, involvement induced by heat treatment (38°C for 3 days) prior storage (8°C) tolerance was investigated. The inhibitor 2‐aminoindan‐2‐phosphonic acid (AIP) also used further study...
Traditional emulsified asphalt pothole repair materials exhibit poor temperature sensitivity, low mechanical properties, and water stability. Two-component waterborne epoxy resin (WER) is composed of emulsion a curing agent, has remarkable adhesion, durability, environmental friendliness. was used to modify neat asphalt, enhancing its binder properties improving the pavement performance materials. The influence WER modifier on mixture studied. research showed that agents could polymerize...
We report the direct homopolymerization and copolymerization of a primary amine-based methacrylic monomer, 2-aminoethyl methacrylate (AMA), in its hydrochloride salt form by living radical polymerization. Linear PAMA homopolymer AB diblock copolymers (where A = AMA B 2-(diisopropylamino)ethyl methacrylate, or DPA) were prepared with reasonably narrow polydispersities (Mw/Mn ∼ 1.2−1.3) either DMSO DMSO/1,4-dioxane mixtures at 70 °C using cumyl dithiobenzoate (CDB) as reversible...
Waterborne epoxy resin (WER) has excellent chemical stability, heat resistance, and mechanical properties, its application in emulsified asphalt modification is receiving widespread attention road maintenance. In this paper, the properties of waterborne modified (WEA) binder through different preparation processes were investigated, influence WER on microstructure, rheological low-temperature stability was analyzed. The results show that WEA binders prepared using a two-step method can make...
Waterborne epoxy resin (WER) emulsified asphalt (WEREA) has the advantages of high viscosity and strength asphalt, as well a simple construction process, so it is used widely in pavement maintenance repair projects. This paper investigated comprehensive properties, microstructure, modification mechanism, formation mechanism WEREA. The results bond tests, adhesion tests between coarse aggregate, conventional performance multistress creep recovery (MSCR) showed that with increase WER content,...
Inclusion interaction of highly densely PEO grafted polymer brushes with α-cyclodextrins (α-CDs) has been investigated in this study. The polymers poly(poly(ethylene oxide) macromonomers) were prepared through the "grafting from" approach by atom transfer radical polymerization (ATRP) poly(ethylene glycol) methyl ether methacrylate, PEOMA, from a well-defined poly(macroinitiator), poly(2-(2-bromoisobutyryloxy)ethyl methacrylate) (PBIEM, Mw/Mn = 1.27; degree backbone DPb 157). inclusion...
Novel temperature and pH dual-responsive hydrogels were constructed by inclusion of poly(PEGMA)-co-poly(DMA) with alpha-cyclodextrin in aqueous solution. The temperature- or pH-induced sol/gel transition the was completely reversible. Studies on structure/property relationships show that chain uniformity, graft density copolymer concentration affect hydrogel behavior. A mechanism is proposed. vitro release a model drug from this studied. It found kinetics greatly accelerated at higher acidic...
The inclusion complexation of comblike poly(ethylene oxide) grafted polymers, P(PEOMA)s, with α-cyclodextrin (α-CD) was studied. polymers were prepared by atom transfer radical polymerization (ATRP) the macromonomers containing (PEOMA) different molecular weights (Mn = 300, 475, and 1100). that made from Mn 1100 475 formed crystalline complexes (ICs) α-CD, while P(PEOMA) PEOMA weight 300 failed to form ICs α-CD. Furthermore, when side chain length decreased, time α-CD extended as well yields...