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Chinese Journal of Chemical Engineering 2023年第3期55卷 41-48页

作者： Zida Ma Yuxia Li Mengmeng Jin xiaoqin liu Linbing Sun State Key Laboratory of Materials-Oriented Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)College of Chemical EngineeringNanjing Tech UniversityNanjing 210009China

In atmospheric conditions, CuⅠis easily oxidized to CuⅡdue to the coexistence of moisture and oxygen.The poor oxidation inhibition of CuⅠrestricts the practical application of CuⅠ-containing materials.Herein we introduce an approach to construct a superhydrophobic microenvironment in CuⅠfunctionalized metal–organic frameworks by coordinatedly grafting organic amine compounds onto open metal sites(OMSs), which can hinder the accessibility of moisture to pores thereby enhancing the stability of CuⅠ. As a proof of concept, MIL-101(Cr) with abundant OMSs and octadecylamine(OA)with long hydrophobic alkyl groups are used as carrier and surface coating. As superhydrophobic porous materials, the resultant CuⅠM-OA exhibits improved CuⅠstability in addition to retaining high crystallinity and intact porosity while almost all CuⅠis oxidized in hydrophilic CuⅠM upon exposure in a humid atmosphere for 30 h. CuⅠM-OA owns excellent adsorption desulfurization performance(ADS) with regard to thiophene, benzothiophene, and 4,6-dimethyl dibenzothiophene. Even from hydrated fuel, the adsorption performance of CuⅠM-OA maintains well while the adsorption capacity of CuⅠM decreases to 7% after4 cycles. The remarkable moisture resistance, CuⅠstability, and high porosity make the current adsorbent CuⅠM-OA highly promising for the practical ADS process.

关键词： π-Complexation Metal-organic frameworks Superhydrophobicity Cu I stability Adsorptive desulfurization(ADS)

Metal-organic frameworks derived carbon-coated ZnSe/Co_(0.85)Se@N-doped carbon microcuboid as an advanced anode material for sodium-ion batteries

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Chinese Chemical Letters 2022年第6期33卷 3197-3202页

作者： Xiaoyan Li xiaoqin liu Yu Xiang Qiaoji Zheng Xijun Wei Dunmin Lin College of Chemistry and Materials Science Sichuan Normal UniversityChengdu 610066China State Key Laboratory of Environment-Friendly Energy Materials School of Materials Science and EngineeringSouthwest University of Science and TechnologyMianyang 621010China

Transition metal selenides attract significant attention as advanced anode materials for sodium-ion batteries(SIBs)in recent years due to their appropriate working potential and high theoretic capacity.However,the poor structural stability and rate capability limit their further practical applications.Herein,zeolite imidazole framework-8/zeolite imidazole framework-67 is used as a template to prepare Co_(0.85)Se and Zn Se nanoparticles embed in N-doped carbon matrix successfully,and then coated a carbon layer(ZCS@NC@C)by in-situ polymerization.One side,the N-doped carbon matrix with rich pore structure not only shorten the diffusion path of Na^(+) and improve the conductivity of the electrode,but also prevent structural collapse and agglomeration of active particles during the sodium insertion/extraction process.On the other side,the carbon shell preparation by coating can form a protective layer to buffer the volumetric stress generated in the electrochemical process and further improve the electrical conductivity.As a result,the as-prepared ZCS@NC@C anode material exhibits an excellent electrochemical performance for SIBs.This investigation provides a promising approach to optimize the electrochemical performance of SIBs by incorporating active metal compounds into conductive carbons to form multidimensional structure.

关键词： Transition metal selenides N-doped ZIF-8/ZIF-67 Carbon coating Sodium ion batteries

Light-responsive adsorbentswithtunableadsorbent-adsorbate interactions forselective CO_(2) capture

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Chinese Journal of Chemical Engineering 2022年第2期35卷 104-111页

作者： Peng Tan Yao Jiang Qiurong Wu Chen Gu Shichao Qi Qiang Zhang xiaoqin liu Linbing Sun State Key Laboratory of Materials-Oriented Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China Department of Chemistry Washington State UniversityPullmanWA 99163United States

Amines in porous materials have been employed as active species for the selective CO_(2) adsorption from natural gas because of their target-specific interactions.Nevertheless,it is difficult to modulate such strong interactions to reach a high efficiency in the adsorption processes.Herein,we fabricated lightresponsive adsorbents with tunable adsorbent–adsorbate interactions for CO_(2) capture.The adsorbents were synthesized by introducing primary and secondary amines into a mesoporous silica that had been grafted with azobenzene groups on the surfaces.The target-specific amine sites render the adsorbents significantly selective in the uptake of CO_(2) over CH_(4),and the azobenzene groups were used as lightresponsive switches to influence the adsorbent–adsorbate interactions.The adsorbents can freely adsorb CO_(2) when the azobenzene groups are in the trans state.Ultraviolet-light irradiation makes the azobenzene groups transform to the cis configuration,which greatly hinders amines in the uptake of CO_(2).The caused difference of adsorption capacity can reach 34.9%.The alternative irradiation by ultravioletand visible-light can lead to a recyclable regulation on adsorption performance.The changes of the electrostatic potentials of amines are responsible for the light-induced regulation on adsorption.

关键词： Adsorbents CO_(2)capture Selectivity Light responsiveness Azobenzene

Decorating MXene with tiny ZIF-8 nanoparticles:An effective approach to construct composites for water pollutant removal

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Chinese Journal of Chemical Engineering 2022年第2期35卷 42-48页

作者： Chen Gu Wenqiang Weng Cong Lu Peng Tan Yao Jiang Qiang Zhang xiaoqin liu Linbing Sun State Key Laboratory of Materials-Oriented Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Material(SICAM)College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China Department of Chemistry Washington State UniversityPullmanWashington 99163United States

MXenes have attracted increasing research enthusiasm owing to their unique physical and chemical properties.Although MXenes exhibit exciting potential in cations adsorption due to their unique surface groups,the adsorption capacity is limited by the low specific surface area and undeveloped porosity.Our work aims at enhancing the adsorption performance of a well-known MXene,Ti3C2Tx,for methylene blue(MB)by decorating tiny ZIF-8 nanoparticles in the interlayer.After the incorporation of ZIF-8,suitable interspace in the layers resulting from the distribution of tiny ZIF-8 appears.When employing in MB,the adsorption capacity of composites can reach up to 107 mg·g^(-1) while both ZIF-8(3 mg·g^(-1))and Ti_(3)C_(2)Tx(9mg·g^(-1))show nearly no adsorption capacity.The adsorption mechanism was explored,and the good adsorption capacity is caused by the synergistic effect of ZIF-8 and Ti_(3)C_(2)Tx,for neither of them is of suitable interspace or surface groups for MB adsorption.Our work might pave the way for constructing functional materials based on the introduction of nanoparticles into layered materials for various adsorption applications.

关键词： Ti3C2Tx MXene MOF nanoparticles Adsorption Composites

Let-7i miRNA and platinum loaded nano-graphene oxide platform for detection/reversion of drug resistance and synergetic chemical-photothermal inhibition of cancer cell

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Chinese Chemical Letters 2022年第2期33卷 767-772页

作者： Jianhua Yan Yixuan Zhang Lijuan Zheng Yuwei Wu Ting Wang Ting Jiang xiaoqin liu Dongming Peng Yanfei liu Zhenbao liu Department of Pharmaceutics Xiangya School of Pharmaceutical SciencesCentral South UniversityChangsha 410013China Department of Pharmaceutical Engineering College of Chemistry and Chemical EngineeringCentral South UniversityChangsha 410083China Department of Medicinal Chemistry School of PharmacyHunan University of Chinese MedicineChangsha 410208China Molecular Imaging Research Center of Central South University Changsha 410008China

The drug resistance of chemotherapy is a major challenge to overcome for antineoplastic agents and the reverse of drug resistant is essential for cancer therapy. Herein, we developed a drug delivery system which can simultaneously detect/reverse the drug resistance and perform synergetic treatment of cancer. In this work, we integrated cyanine5(Cy5) modified mi RNA(let-7 i)(Cy5-mi RNA) and platinum onto nano-graphene oxide(NGO)(30-50 nm) platform to achieve simultaneously detection/reversion of drug resistance and synergetic treatment of cisplatin resistant SKOV3 cells(SKOV3 DDP cells). The Cy5-mi RNA adsorbed on NGO could selectively bind the drug resistance related m RNA follow by suppress the expression of drug resistance m RNA, and the binding simultaneously induced the release of Cy5-mi RNA from the NGO, thus the fluorescence signal of Cy5 recovered and could be used for drug resistance monitoring.Moreover, the mi RNA suppressed the Cyclin D1 protein expressions thus reversed the drug resistance. The loaded platinum(Ⅳ)(Pt(Ⅳ)) was converted to the therapeutic platinum(Ⅱ)(Pt(Ⅱ)) in both tumor acidic and reductive environment responsive behavior. NGO furtherly performed photothermal therapy under near infrared(NIR) laser irradiation and enhanced the therapeutic effect. All in all, this nanoplatform realized detection/reversion of the drug resistance as well as synergetic chemical-photothermal treatment of ovarian cancer cells, which holds great promise in the treatment of drug resistant cancer cells.

关键词： Nano-graphene oxide Drug resistance Synergetic chemical-photothermal therapy miRNA Platinum

Magnetically responsive porous materials for efficient adsorption and desorption processes

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Chinese Journal of Chemical Engineering 2019年第6期27卷 1324-1338页

作者： Peng Tan Yao Jiang xiaoqin liu Linbing Sun State Key Laboratory of Materials-Oriented Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)College of Chemical EngineeringNanjing Tech University

Magnetically responsive porous materials possess unique properties in adsorption processes such as magneticinduced separation and heat generation in alternating magnetic fields, which greatly facilitates recycling procedures, favors long-term operation, and improves desorption rate, making conventional adsorption processes highly efficient. With increasing interest in magnetic adsorbents, great progress has been made in designing and understanding of magnetically responsive porous materials varying from monoliths to nanoscale particles used for adsorption including oil uptake, removal of hazardous substances from water, deep desulfurization of fuels, and CO2 capture in the past few years. Therefore, a review summarizing the advanced strategies of synthesizing these magnetically responsive adsorbents and the utilization of their magnetism in practical applications is highly desired. In this review, we give a comprehensive overview of this emerging field, highlighting the strategies of exquisitely incorporating magnetism to porous materials and subtly exploiting their magnetic responsiveness. Further innovations for fabricating or utilizing magnetic adsorbents are expected to be fueled. The potential opportunities and challenges are also discussed.

关键词： Adsorbents Adsorption Desorption Separation Porous materials Magnetic composites

Visual acuity evaluated by pattern-reversal visual-evoked potential is affected by check size/visual angle

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Neuroscience Bulletin 2012年第6期28卷 737-745页

作者： Xiping Chen Qianqian Li xiaoqin liu Li Yang Wentao Xia Luyang Tao Shanghai Key Lab of Forensic Medicine Forensic Brain Laboratory Department of Forensic SciencesSoochow University Department of Forensic Medicine Wannan Medical College

Objective To systemically explore the range of visual angles that affect visual acuity, and to establish the relationship between the P 1 component （peak latency -100 ms） of the pattern-reversal visual-evoked potential （PRVEP） and the visual acuity at particular visual angles. Methods Two hundred and ten volunteers were divided into seven groups, according to visual acuity as assessed by the standard logarithmic visual acuity chart （SLD-II）. For each group, the PRVEP components were elicited in response to visual angle presentations at 8°, 4°, 2°, 1°/60＇, 30＇, 15＇, and 7.5＇, in the whiteblack chess-board reversal mode with a contrast level of 100% at a frequency of 2 Hz. Visual stimuli were presented monocularly, and 200 presentations were averaged for each block of trials. The early and stable component P1 was recorded at the mid-line of the occipital region （Oz） and analyzed with SPSS 13.00. Results （1） Oz had the maximum Pl amplitude; there was no significant difference between genders or for interocular comparison in normal controls and subjects with optic myopia. （2） The P1 latency decreased slowly below 30＇, then increased rapidly. The P1 amplitude initially increased with check size, and was maximal at -1° and -30＇. （3） The P1 latency in the group with visual acuity 〈0.2 was signifi- cantly different at 8°, 15＇ and 7.5＇, while the amplitude differed at all visual angles, compared with the group with normal vision. Differences in P1 for the groups with 0.5 and 0.6 acuity were only present at visual angles 〈1°. （4） Regression analysis showed that the P1 latency and amplitude were associated with visual acuity over the full range of visual angles. There was a moderate correlation at visual angles 〈30＇. Regression equations were calculated for the P1 components and visual acuity, based on visual angle. Conclusion （1） Visual angle should be taken into consideration when exploring the function of the visual pathway, especially visual acuity. A visual angle -60＇ might be appropriate when using PRVEP com- ponents

关键词： visual acuity visual angle pattern-reversal visual-evoked potential check size regression equation

医学会与司法鉴定机构医疗损害鉴定模式的比较

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中国卫生标准管理 2024年第4期15卷 89-92页

作者：刘小琴盐城市卫生健康促进中心人才服务科江苏盐城224002 盐城市医学会医鉴办江苏盐城224002

目前医学会和司法鉴定机构均可进行医疗损害鉴定,呈现为鉴定“二元化”现象。文章从鉴定文书格式、鉴定专家选择、鉴定模式、鉴定意见4个方面分析了2类医疗损害鉴定机构存在的差异,主要表现在医学会鉴定文书格式较规范、随机抽取专家更... 详细信息

目前医学会和司法鉴定机构均可进行医疗损害鉴定,呈现为鉴定“二元化”现象。文章从鉴定文书格式、鉴定专家选择、鉴定模式、鉴定意见4个方面分析了2类医疗损害鉴定机构存在的差异,主要表现在医学会鉴定文书格式较规范、随机抽取专家更能体现选择的公正性、专家组合议制更科学、分析意见更专业,司法鉴定机构指定专家的方式更具灵活性、分析意见语言逻辑组织更胜一筹。建议制定规范、统一的医疗损害鉴定组织形式,采取“X名临床专家+1名法医”的专家组构成模式,完善鉴定相关制度,以期实现医疗损害鉴定的科学化、规范化。

关键词：医疗纠纷医疗损害医学会鉴定司法鉴定鉴定模式鉴定程序

农村中青年劳动力的职业培训与人才培养路径探析

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市场周刊 2024年第5期37卷 183-186页

作者：刘小勤铜陵市枞阳县官埠桥镇人民政府安徽铜陵246700

农村中青年劳动力是农村地区经济发展的重要力量,他们的职业培训与人才培养对推动农村经济的转型升级、促进乡村振兴具有重要意义。然而,由于农村经济与城市经济存在差异,农村中青年劳动力的职业培训与人才培养面临诸多挑战和问题。因此... 详细信息

农村中青年劳动力是农村地区经济发展的重要力量,他们的职业培训与人才培养对推动农村经济的转型升级、促进乡村振兴具有重要意义。然而,由于农村经济与城市经济存在差异,农村中青年劳动力的职业培训与人才培养面临诸多挑战和问题。因此,有必要对农村中青年劳动力的职业培训与人才培养路径进行探析,以指导实践工作。文章旨在探析农村中青年劳动力的职业培训与人才培养路径,以提供有针对性的建议和措施,促进农村中青年劳动力的就业创业和职业发展。

关键词：农村中青年劳动力职业培训人才培养路径

全身麻醉与脊髓麻醉应用于日间输尿管镜碎石术老年患者的临床效果对比

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中外医学研究 2024年第14期22卷 58-62页

作者：刘小琴钟祥市中医院湖北钟祥431999

目的:探讨全身麻醉与脊髓麻醉应用于日间输尿管镜碎石术老年患者的临床效果。方法:选择2022年2月—2023年9月钟祥市中医院收治的256例日间输尿管镜碎石术老年患者作为研究对象,以随机数表法均分为对照组和研究组,各128例。对照组应用全... 详细信息

目的:探讨全身麻醉与脊髓麻醉应用于日间输尿管镜碎石术老年患者的临床效果。方法:选择2022年2月—2023年9月钟祥市中医院收治的256例日间输尿管镜碎石术老年患者作为研究对象,以随机数表法均分为对照组和研究组,各128例。对照组应用全身麻醉,研究组应用脊髓麻醉。比较两组麻醉相关参数、血流动力学指标及不良反应发生率。结果:研究组麻醉准备时间、手术时间、手术室麻醉相关时间、坐立时间、下床活动时间长于对照组,麻醉苏醒时间、出院时间均短于对照组,差异有统计学意义(P0.05);麻醉时、麻醉后1 min、3 min、5 min、10 min、15 min、20 min、30 min,研究组血压、心率、血氧饱和度均高于对照组,差异有统计学意义(P<0.05)。研究组疲劳、排尿困难等不良反应发生率均低于对照组,差异有统计学意义(P<0.05)。结论:与全身麻醉相比,日间输尿管镜碎石术老年患者应用脊髓麻醉苏醒时间和出院时间更短,血流动力学更稳定,疲劳、排尿困难发生风险更低。

关键词：日间输尿管镜碎石术老年全身麻醉脊髓麻醉输尿管结石

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