A5018886348- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Catalytic C–H Functionalization Methods
- Electrocatalysts for Energy Conversion
- Synthetic Organic Chemistry Methods
- Catalytic Cross-Coupling Reactions
- Catalytic Processes in Materials Science
- Asymmetric Synthesis and Catalysis
- Molecular Sensors and Ion Detection
- Electrospun Nanofibers in Biomedical Applications
- Catalytic Alkyne Reactions
- Nanoparticle-Based Drug Delivery
- Advanced Sensor and Energy Harvesting Materials
- Electrochemical Analysis and Applications
- Synthesis and Catalytic Reactions
- Advanced Cellulose Research Studies
- Advanced battery technologies research
- Lignin and Wood Chemistry
- Hydrogels: synthesis, properties, applications
- Fuel Cells and Related Materials
- biodegradable polymer synthesis and properties
- Wastewater Treatment and Nitrogen Removal
- Conducting polymers and applications
- Polymer Surface Interaction Studies
- Sulfur-Based Synthesis Techniques
Xi'an University of Architecture and Technology
2024
Fiber Optic Valley
2023
Soochow University
2014-2023
RISE Research Institutes of Sweden
2020-2022
Xinxiang University
2020-2022
Wallenberg Wood Science Center
2022
Chalmers University of Technology
2022
Anhui University of Technology
2021-2022
Chongqing Normal University
2022
Inner Mongolia University
2015-2021
A coumarin−hemicyanine dye 1 was reported for ratiometric fluorescent detection of SO2 derivatives HSO3− and SO32− based on a novel addition-rearrangement cascade reaction.
Abstract In the past decades, much attention has been paid to toxicity assessment of nanoparticles prior clinical and biological applications. While in vitro studies have increasing constantly, vivo not established a unified system until now. Predictive models validated standard methods are imperative. This review summarizes current progress approaches assessing nanotoxicity main systems, including hepatic renal, gastrointestinal, pulmonary, cardiovascular, nervous, immune systems....
A mutually compatible and cooperative combination of copper(I) triflate bifunctional 9-amino-9-deoxyepicinchona-derived urea compounds for the enantioselective Conia-ene cyclization alkyne-tethered beta-ketoester substrates is reported. The reaction efficient, broad in scope, easy to perform allows access chiral methylenecyclopentane products with high enantiocontrol. transformation illustrates concept combining inactive precatalysts transition-metal-ion complexes situ reversibly create a...
Selective and fast: A flavylium derivative-based ratiometric fluorescent probe (1) for H2S is reported. The reaction mechanism (see scheme) based on the nucleophilic addition of towards electrically positive benzopyrylium moiety 1, which can efficiently differentiate from other competitive species. exhibits a fast response toward H2S, within 10 s, superior to most reported probes.
A one-pot, multistep reaction cascade to cyclopentenes from α,β-unsaturated ketones and propargylated carbon acids through a combination of organocatalysis transition metal ion catalysis is reported; the simple perform, occurs under mild conditions broad in scope.
A one-pot Au(I)-catalyzed reaction cascade to multi-ring heterocyclic products from alkynoic acids and primary amines is reported. The gold catalyst initially primes the acid, via cyclization an enol lactone, react with a amine tethered electron rich heteroaromatic system. Then, postulated Lewis acid assisted acidity, Au(I) activates amido ketone intermediate undergo N-acyl iminium ion cyclization. sequence simple perform, efficient, broad in its scope diverse range of complex products.
Introduction: Cell-based tissue engineering is a promising method for dentin-pulp complex (DPC) regeneration. The challenges associated with DPC regeneration include the generation of suitable microenvironment that facilitates complete odontogenic differentiation dental pulp stem cells (DPSCs) and rapid induction angiogenesis. Thus, survival subsequent DPSCs are limited. Extracellular matrix (ECM)-like biomimetic hydrogels composed self-assembling peptides (SAPs) were developed to provide an...
Abstract Considering the large number of applications for hydrogels, a better understanding relation between molecular structure and mechanical properties well‐defined hydrogel is essential. A new library has been compiled poly(ethylene glycol) polymers (PEG) different length end functionalized with diallyl, dithiol, dimethacrylate, crosslinked complementary trifunctional crosslinkers. In this study, hydrogels were initially analyzed by FT‐Raman NMR to study conversion ratio functional...
A mild and regioselective N-alkylation reaction of 2-pyridones in water has been developed. Tween 20 (2% w/w) was added to create a micellar system for improved solubility starting materials, which leads enhanced rates. The protocol demonstrated wide substrate scope with good isolated yields (40–94%) all the 24 examples evaluated. High regioselectivity favoring over O-alkylation observed benzyl halides (>5:1), primary alkyl (>6:1), bulky less reactive secondary (>2.4:1).
Abstract Lignin derivatives, which arise as waste products from the pulp and paper industry are mainly used for heating, can be charge storage materials. The function is a result of quinone groups formed in lignin derivative. Herein, we modified lignins to enhance density such by covalently linking monolignols quinones through phenolation. extra guaiacyl, syringyl, hydroquinone introduced phenolation kraft derivatives were monitored 31 P nuclear magnetic resonance size exclusion...
An extensive family of oxide cluster fullerenes (OCFs) Sc2O@C2n (n = 35–47) has been facilely produced for the first time by introducing CO2 as oxygen source. Among this family, Sc2O@C70 was identified smallest OCF and therefore isolated characterized mass spectrometry, 45Sc nuclear magnetic resonance, UV–vis–near-infrared absorption spectroscopy, cyclic voltammetry, density functional theory calculations. The combined experimental computational studies reveal a non-isolated pentagon rule...
A new cluster fullerene, Sc2 O@Td (19151)-C76 , has been isolated and characterized by mass spectrometry, UV/Vis/NIR absorption, (45) Sc NMR spectroscopy, cyclic voltammetry, single-crystal X-ray diffraction. The crystallographic analysis unambiguously assigned the cage structure as Td which is first tetrahedral fullerene This study also demonstrated that O a much smaller ScOSc angle than of O@Cs (6)-C82 unit fully ordered inside cage. Computational studies further revealed motion more...
A facile sonochemical approach is designed to fabricate protein nanocapsules for hydrophilic drugs (HDs), and HD-loaded multifunctional bovine serum albumin (BSA) (MBNCs) have been prepared the first time. The as-synthesized MBNCs a satisfying size range an excellent magnetic responsive ability. Moreover, high-dose could be loaded into MBNCs. As carriers, also show attractive redox-responsive controlled release ability internalized selectively by tumor cells through folate-mediated endocytosis.
Emerging dendritic–linear–dendritic (DLD) hybrids that possess synergetic properties of linear and highly functional branched dendritic polymers are becoming important macromolecular scaffolds in fields ranging from biomedicine to nanotechnology. By exploiting pseudo-one-step polycondensation reactions, a facile scalable synthetic methodology for the construction DLDs has been developed. A library three sets exhibiting hydrophilic PEG core with covalently attached hyperbranched bis-MPA...
The electrochemical and charge storage properties of different lignins inside biopolymer electrodes were studied correlated with the chemical variations as indicated from nuclear magnetic resonance (NMR) spectroscopic data. varying fractions monolignols found to correlate properties. It was that sinapyl guaiacyl (S/G) ratio increased both specific capacitance capacity considerably. This indicates quinones generated on S-units can contribute more in electrodes.
Production of fibers from nonthermoplastic polymers, such as chitosan, usually requires dissolution with subsequent fiber formation, for instance, via coagulation. Good fiber-forming properties enable simultaneous spinning multiple into a yarn, which is one the prerequisites process scalability. Here, we report multifilament wet-spinning that eliminates use volatile organic compounds methanol and acetone, enhances allows producing continuous well-separated chitosan after drying. This...
Abstract The enantioselective Conia‐ene cyclization of alkyne‐tethered β‐ketoesters is efficiently catalyzed by the combination cinchona‐derived amino‐urea pre‐catalysts and copper(I) salts. reaction scope broad a series substrates can be cyclized with high yields enantioselectivities. Herein, we present detailed mechanistic study based on experimental considerations quantum mechanical calculations. Several variables, such as nature organic pre‐catalyst metal‐ion source, have been thoroughly...