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A Novel Flow Injection Optical Fiber Biosensor for Hypoxanthine Based on Luminol Electrochemiluminescence

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Chemical Research in Chinese Universities 2003年第2期19卷 240-244页

作者： LI Ying xiu zhu lian de zhu Guo yi State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022P.R.China

IntroductionIn the food industry,the determination of hy-poxanthine in fish meat can be regarded as a simple method for evaluating fish freshness.……

关键词： Electrochemiluminescence Flow injection Optical fiber biosensor Sol-gel Ceramic-carbon composite electrode Hypoxanthine Fish freshness

Single and Combined Effects of As (Ⅲ) and Acetochlor on Phosphatase Activity in Soil

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Journal of Integrative Agriculture 2013年第6期12卷 1079-1086页

作者： ZHANG Yun ZHANG Feng ZHANG Guan-cai GUAN lian-zhu College of Land and Environment Shenyang Agriculture University The Center for Agriculture Quantity and Safe Ministry of Agriculture

The actions and interactions of acetochlor and As on the soil phosphatase activity were investigated after 1, 3, 6, 10, 15, 30 and 60 d of exposure under control conditions. The soils were exposed to various concentrations of acetochlor and As individually and simultaneously. The results showed that acetochlor, As only, and combined pollution all clearly inhibited soil phosphatase activity. The maximum inhibition ratios of soil phosphatase activity by acetochlor, As only and combined pollution were 36.44, 74.12 and 61.29%, respectively. Two kinetic models, ν=c/（1＋bi）（model 1） and ν=c（1＋ai）/（l＋bi）（model 2）, were used to describe the relationship between the concentrations of As and acetochlor and the activity of soil phosphatase. The semi-effect dose （ED 50 ） values induced by As and acetochlor stress based on the inhibition of soil phosphatase were 18.1 and 33.11 mg kg-1, respectively, according to calculation by model 1. The interactive effect of acetochlor with As on soil phosphatase primarily consisted of significant antagonism effects at the higher concentrations tested. The step regression results show that the toxicity order was As （III）〉acetochlor〉As （III）×acetochlor throughout the incubation period.

关键词： As acetochlor soil phosphatase single and combined pollution

Physical energy-based ultrasound shifts M1 macrophage differentiation towards M2 state

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World Journal of Stem Cells 2022年第2期14卷 214-218页

作者： Hao-Cheng Qin Zhi-Wen Luo Yu-lian zhu Department of Rehabilitation Medicine Huashan HospitalFudan UniversityShanghai 200040China Department of Sports Medicine Huashan HospitalFudan UniversityShanghai 200040China

Recently,we read with interest the article entitled“Unveiling the Morphogenetic Code:A New Path at the Intersection of Physical Energies and Chemical Signaling”.In this paper,the investigation into the systematic and comprehensive bio-effects of physical energies prompted us to reflect on our *** believe that ultrasound,which possesses a special physical energy,also has a certain positive regulatory effect on macrophages,and we have already obtained some preliminary research results that support our hypothesis.

关键词： Ultrasound Macrophages Stem cells Physical energies Inflammation

Synthesis, characterization, and anti-cancer activity of emodin-Mn(Ⅱ) metal complex

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Chinese Journal of Natural Medicines 2014年第12期12卷 937-942页

作者： YANG Li TAN Jun WANG Bo-Chu zhu lian-Cai Key Laboratory of Biorheological Science and Technology (Chongqing University) Ministry of Education College of Bioengineering Chongqing University School of Biological & Chemical Engineering Chongqing University of Education

To synthesize and characterize a novel metal complex of Mn(II) with emodin, and evaluate its anti-cancer activity. The elemental analyses, IR, UV-vis, atomic absorption spectroscopy, TG-DSC, 1H NMR, and 13 C NMR data were used to characterize the structure of the complex. The cytotoxicity of the complex against the human cancer cell lines HepG 2, HeL a, MCF-7, B16, and MDA-MB-231 was tested by the MTT assay and flow cytometry. Emodin was coordinated with Mn(II) through the 9-C=O and 1-OH, and the general formula of the complex was Mn(II)(emodin)2·2H2O. In studies of the cytotoxicity, the complex exhibited significant activity, and the IC50 values of the complex against five cancer cell lines improved approximately three-fold compared with those of emodin. The complex could induce cell morphological changes, decrease the percentage of viability, and induce G0/G1 phase arrest and apoptosis in cancer cells. The coordination of emodin with Mn(II) can improve its anticancer activity, and the complex Mn(II)(emodin)2·2H2O could be studied further as a promising anticancer drug.

关键词： Emodin Cytotoxicity Metal complex Cell cycle arrest Apoptosis

CO_(2) Adducts of the Amino and Imino Groups Studied by ~1HNMR and ^(13)CNMR

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Chinese Chemical Letters 2001年第4期12卷 283-286页

作者： Zhen CHEN Ren Yun WANG Li lian zhu Xiao Tian lianG Institute of Materia Medica Peking Union Medical CollegeThe Chinese Academy of Medical SciencesBeijing 100050

CO2 adducts of L-(+)-asparaginic acid and some polyhydroxylated alkaloids was studied by 1HNMR and 13CNMR in this paper.

关键词： Carbamate CO_(2) adduct 13CNMR 1HNMR polyhydroxylated alkaloid.

Multiple Symmetric Lipomas: A Case Report

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Chinese Journal of Plastic and Reconstructive Surgery 2020年第4期2卷 257-262页

作者： Qiuyuan FENG Xueyao CAI Yucheng CAI Guoyou ZHANG Jie lian lian zhu Department of Plastic Surgery Yixing HospitalJiangsu UniversityWuxiJiangsu 214200China Department of Plastic and Reconstructive Surgery Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai 200003China

Multiple symmetric lipomas are a rare disease characterized by multiple symmetrical deposits of adipose tissue associated with alcohol abuse.A 68-year-old man was admitted to our hospital for being operated on for a mass growth on the neck and *** on the patient’s medical history and preoperative magnetic resonance imaging findings,we performed surgical *** was no recurrence at one year postoperatively.

关键词： Multiple symmetric lipomas Symmetric adipose tissue Alcohol abuse Surgical resection

Verification of Short-Term Predictions of Solar Soft X-ray Bursts for the Maximum Phase (2000-2001) of Solar Cycle 23

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Chinese Journal of Astronomy and Astrophysics 2003年第6期3卷 563-568页

作者： Cui-lian zhu and Jia-Long WangNational Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 National Astronomical Observatories Chinese Academy of Sciences Beijing 100012

We present a verification of the short-term predictions of solar X-ray bursts for the maximum phase (2000–2001) of Solar Cycle 23, issued by two prediction centers. The results are that the rate of correct predictions is about equal for RWC-China and WWA; the rate of too high predictions is greater for RWC-China than for WWA, while the rate of too low predictions is smaller for RWC-China than for WWA.

关键词： sun: X-ray bursts sun: short-term prediction

Resveratrol-loaded peptide-hydrogels inhibit scar formation in wound healing through suppressing inflammation

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Regenerative Biomaterials 2020年第1期7卷 99-107页

作者： Chen-Chen Zhao lian zhu Zheng Wu Rui Yang Na Xu liang liang Institute of Biology and Medicine College of Life Sciences and HealthWuhan University of Science and TechnologyWuhan 430081China The First College of Clinical Medical Science China Three Gorges University&Yichang Central People’s HospitalYichang 443003 China

Scar formation seriously affects the repair of damaged skin especially in adults and the excessive inflammation has been considered as the *** self-assembled peptide-hydrogels are ideal biomaterials for skin wound healing due to their similar nanostructure to natural extracellular matrix,hydration environment and serving as drug delivery *** our study,resveratrol,a polyphenol compound with anti-inflammatory effect,is loaded into peptide-hydrogel(Fmoc-FFGGRGD)to form a wound dressing(Pep/RES).Resveratrol is slowly released from the hydrogel in situ,and the release amount is controlled by the loading *** in vitro cell experiments demonstrate that the Pep/RES has no cytotoxicity and can inhibit the production of pro-inflammatory cytokines of *** Pep/RES hydrogels are used as wound dressings in rat skin damage *** results suggest that the Pep/RES dressing can accelerate wound healing rate,exhibit well-organized collagen deposition,reduce inflammation and eventually prevent scar *** Pep/RES hydrogels supply a potential product to develop new skin wound dressings for the therapy of skin damage.

关键词： resveratrol peptide hydrogel wound healing inflammation

Synthesis,Crystal Structure and Luminescent Properties of a 1D Loop-chain Coordination Polymer [Ag(3,3-pybz)(3,3-Hpybz)]_n

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Chinese Journal of Structural Chemistry 2013年第12期32卷 1767-1772页

作者： TANG Long FU Feng WEI Qing-Bo WANG Sheng-Wen ZHANG zhu-lian Yan'an University Department of Chemistry and Chemical EngineeringShaanxi Key Laboratory of Chemical Reaction Engineering

A new coordination polymer, [Ag（3,3-pybz）（3,3-Hpybz）]n （1, 3,3-Hpybz = 3-pyri- din-3-yl-benzoic acid）, has been synthesized and characterized by elemental analysis, IR spectra, PXRD, and single-crystal X-ray diffraction. In complex 1, the Ag（1）ions are linked by the paired 3,3-pybz ligands to generate an infinite 1D loop chain, and further through π-π stacking interactions to form a 2D supramolecular architecture. Crystal data for 1： triclinic, space group P1, a = 10.2635（17）, b = 10.3041（12）, c = 10.8060（13） A, V= 1679.1（5）A3, α = 62.028（11）, β = 80.325（15）, γ = 78.738（14）°, Z = 2, C24H17AgN2O4, Mr = 505.27, Dc= 1.698 g/cm3, μ= 1.058 mm--, F（000） = 506, S = 1.012 and T = 293（2） K. The final R = 0.0293 and wR = 0.0667 for 3435 observed reflections with I〉 2a（/）, and R = 0.0350 and wR = 0.0688 for all data.

关键词： Ag(I) compound crystal structure luminescent properties