Qiuhua Zhao

ORCID: 0000-0001-8568-826X
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About
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Research Areas
  • X-ray Diffraction in Crystallography
  • Advanced Sensor and Energy Harvesting Materials
  • Crystallization and Solubility Studies
  • Hydrogels: synthesis, properties, applications
  • Polysaccharides Composition and Applications
  • Advanced Materials and Mechanics
  • Supramolecular Chemistry and Complexes
  • Luminescence and Fluorescent Materials
  • Conducting polymers and applications
  • MicroRNA in disease regulation
  • Proteins in Food Systems
  • Traditional Chinese Medicine Studies
  • Synthesis and Catalytic Reactions
  • Chemical Synthesis and Analysis
  • Ferroptosis and cancer prognosis
  • Supramolecular Self-Assembly in Materials
  • Parasites and Host Interactions
  • Polysaccharides and Plant Cell Walls
  • Asymmetric Synthesis and Catalysis
  • NMR spectroscopy and applications
  • Cancer Immunotherapy and Biomarkers
  • Sulfur-Based Synthesis Techniques
  • Polymer composites and self-healing
  • Medicinal Plant Pharmacodynamics Research
  • Catalytic C–H Functionalization Methods

East China Normal University
2016-2025

Affiliated Hospital of Youjiang Medical University for Nationalities
2013-2021

State Council of the People's Republic of China
2021

Green Chemistry
2020

China Communications Construction Company (China)
2020

Beijing Shijingshan Hospital
2019

China Animal Disease Control Center
2015

Tokyo University of Marine Science and Technology
2012-2013

Youjiang Medical College for Nationalities
2013

Longhua Hospital Shanghai University of Traditional Chinese Medicine
2011

Background/Objective Inadvertent intraoperative hypothermia (core temperature <360 C) is a recognized risk in surgery and has adverse consequences. However, no data about this complication China are available. Our study aimed to determine the incidence of inadvertent its associated factors sample Chinese patients. Methods We conducted regional cross-sectional survey Beijing from August through December, 2013. Eight hundred thirty patients who underwent various operations under general...

10.1371/journal.pone.0136136 article EN cc-by PLoS ONE 2015-09-11

The fast evolution of metal halide perovskite solar cells has opened a new chapter in the field renewable energy. High-quality films as active layers are essential for both high efficiency and long-term stability. Here, with enlarged crystal grain size decreased defect density fabricated by introducing extremely low-cost green polymer, ethyl cellulose (EC), into layer. addition EC triggers hydrogen bonding interactions between perovskite, passivating charge traps at boundaries. long chain...

10.1021/acsami.9b01740 article EN ACS Applied Materials & Interfaces 2019-03-18

A multiresponsive supramolecular gel was constructed based on a bis(pyridinium) dication guest and copolymer with pillararenes as the pendant groups, which synthesized by free radical copolymerization of methacrylate-functionalized methyl methacrylate. The mechanism formation explored intensive study. Upon addition competitive host or molecules, pillararene-based could be transferred into sol due to competition host–guest complexation. Surprisingly, ordered stacking indispensable obtain gel,...

10.1021/acs.macromol.6b00270 article EN Macromolecules 2016-03-18

Abstract Alkene hydrodifluoroalkylation is a fruitful strategy for synthesizing difluoromethylated compounds that are interesting developing new medicinal agents, agrochemicals, and advanced materials. Whereas the anti-Markovnikov to linear-type products developed, employing radical-based processes, Markovnikov synthesis of branched adducts remains unexplored. Herein, we describe acid-catalyzed processes involving carbocation intermediates as promising secure regioselectivity. Accordingly,...

10.1038/s41467-020-19387-4 article EN cc-by Nature Communications 2020-10-30

Nine unexpected new flavonol glycoside cyclodimers in the truxinate (1-7, biginkgosides A-G, respectively) or truxillate [biginkgosides H (8) and I (9)] forms were isolated as minor components from extract of Ginkgo biloba leaves. The dimers possess an unusual cyclobutane ring formed by a [2+2]-cycloaddition between two symmetric (for compounds 1-5 7-9) nonsymmetric 6) coumaroyl glucorhamnosides. A plausible biosynthetic pathway for these based on frontier molecular orbital theory...

10.1021/acs.jnatprod.6b00061 article EN Journal of Natural Products 2016-05-03

We report the successful reversal of diastereoselectivity in an unprecedented Michael addition α-azido ketones to nitroolefins catalyzed by bifunctional tertiary amines, simply varying H-bond donor from phosphoramide squaramide.

10.1039/d0sc00475h article EN cc-by-nc Chemical Science 2020-01-01

Hollow hydrogel tubes that are capable of maintaining their flexibility and structural stability in extreme temperature conditions have potential for use biomedical scaffolds, carriers, soft robotics over a wide range. However, the preparation hollow still remains challenging because it normally requires templates or complex devices is hard to endow with antifreezing heat-resistant capabilities. We report protocol does not require template devices, which sodium alginate film strips immersed...

10.1021/acsami.9b03892 article EN ACS Applied Materials & Interfaces 2019-04-30

We report that phosphorane can activate (salen)TiCl2 complex to achieve unprecedented excellent enantioselectivity and a broad substrate scope in the cyanation of nitroolefins. Our cyanating reagent Me2(CH2Cl)SiCN proves be more active than TMSCN this reaction, allowing 11 β-aliphatic nitrolefins 12 β-CF3 nitroolefins (either β-aryl or aliphatic) work well give corresponding tertiary quaternary β-nitronitriles with high enantioselectivity.

10.1021/acs.orglett.0c00612 article EN Organic Letters 2020-02-27

A protocol for the preparation of 7-amido indoles via regioselective C–H bond functionalization has been first accomplished under Ru(II) catalysis. Indole derivatives and 4-aryl/heteroaryl/benzyl/alkyl dioxzaolines containing various substituents were applicable this transformation, readily providing amidated in moderate to good yields. This novel process many advantages, including compatibility with diverse functional groups, broad substrate scopes, mild reaction conditions. Deuteration...

10.1021/acs.joc.0c02779 article EN The Journal of Organic Chemistry 2021-01-20

A new type of insulating-conductive block copolymer was synthesized by metathesis polymerization. The can self-assemble into unique nanostructures micelles or hollow spheres. It exhibits a high dielectric constant, low loss, and stored/released energy density due to the strong dipolar nano-interfacial polarization contributions.

10.1039/c5cc05307b article EN Chemical Communications 2015-01-01

This work reports a long-chain crosslinker-induced surface-patterning method that enables the complex patterns with highly-structural stability at surface of elastic film for multilevel encryption/decryption.

10.1039/d4mh01828a article EN Materials Horizons 2025-01-01

Information camouflage and decryption on hydrogels rely chemical stimuli such as pH, ultraviolet light, reactions, in which the cyclability is limited. This work develops a simpler yet effective physical method that can achieve information by water swelling decrypt it under white light. The proceed with unlimited cycles. To successfully reach camouflage, hydrogel synthesized ratio weight high 250, enabled strong electrostatic repulsion of cationic moieties inside network. At water-swollen...

10.1021/acsami.1c22745 article EN ACS Applied Materials & Interfaces 2022-01-05

Three weighing methodological approaches, including Analytic Hierarchy Process (AHP), Criteria Importance Through Intercriteria Correlation (CRITIC), and synthetic method (AHP combined with CRITIC), were proposed to handle the relative importance of different constituents in HPLC fingerprints cortex fraxini. The consistency rationale three methods have been analyzed compared. Results showed satisfying all methods; reflected both analyst's subjective judgments objective data itself was,...

10.1080/10826076.2011.582912 article EN Journal of Liquid Chromatography &amp Related Technologies 2011-10-12

A novel and versatile method for peri-C-H selenylation of aromatic compounds bearing ketone groups, including chromones, xanthones, acridinones, quinolinones naphthoquinones with diselenides under Ru(II) catalysis is presented. Various chromones are applicable this transformation, affording 5-selenyl in a highly regioselective manner good to excellent yields. This transformation easy scale up the desired products can be further modified. Most importantly, allows late-stage bioactive...

10.1039/d2cc04030a article EN Chemical Communications 2022-01-01

Regulating the conductivity of conducting polymers has spurred increasing studies, aiming at meeting different demands in various fields, including chemosensors, photovoltaic cells, and so on. Herein, linear pillar[5]arene-containing conjugated were designed synthesized via metathesis cyclopolymerization pillar[5]arene-functionalized 1,6-heptadiyne. Upon addition an ionic guest, such could form inclusion complexes, which glass transition temperature decreased dramatically. With aid guest...

10.1021/acsmacrolett.9b00621 article EN ACS Macro Letters 2019-11-21

Cyclic polymers have been extensively studied because of their unique topology and physical properties, while the methods for efficient synthesis well-defined bicyclic multicyclic are limited. Herein, an effective strategy was developed to synthesize ultralarge-sized by a ring-opening metathesis polymerization (ROMP)-based blocking-cyclization technique in simplified feeding procedure, using short ladderphane bearing four living ends as initial motif. The molecular polymer clarified pieces...

10.1021/acs.macromol.1c02368 article EN Macromolecules 2022-06-03

Background: Ketamine, a commonly used nonbarbiturate anesthetic drug, possesses antidepressant properties at subanesthetic doses; however, the underlying mechanisms remain unclear. Materials and Methods: The analgesic effects of ketamine were explored using complete Freund adjuvant (CFA)-induced peripheral inflammatory pain model in vivo. Mice first divided into sham or CFA injection group randomly, observed for mechanical hyperalgesia, depression-like behavior, mRNA expression caveolin-1 ....

10.1097/ana.0000000000000610 article EN Journal of Neurosurgical Anesthesiology 2019-05-17

Stimuli-responsive elastic organogels have a potential for functional sensors and actuators. However, it remains challenge to prepare an organogel actuator that can be driven by in situ swelling generate controlled shape morphing maintain its kinematic activities with consecutive sorption/desorption of organic solvents. Here, we report stretchable (strain, 130%), robust (stress, 7.0 MPa), is synthesized through ring-opening polymerization long-chain epoxide monomer into crosslinking...

10.1016/j.xcrp.2019.100011 article EN cc-by-nc-nd Cell Reports Physical Science 2020-02-01

It remains a challenge to achieve rapidly recoverable hydrogels by molecular hydrogen-bonding interaction because of its slow kinetics. This work for the first time reports trehalose (Tre)-based movement mechanism inside single network polyacrylamide (PAM) that accelerates kinetics interaction, and thereby endows hydrogel with high toughness rapid shape mechanical recoverability. The resultant PAM@Tre is capable full recovery after 10,000 loading/unloading cycles at strain 500%. Even being...

10.1080/19475411.2022.2116735 article EN International Journal of Smart and Nano Materials 2022-08-30
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