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Boosting solar hydrogen production via electrostatic interaction mediated ***-TiO_(2−x)biohybrid system

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Nano Research 2024年第6期17卷 5390-5398页

作者： Xingxing Lv Weicheng Huang Ya Gao Rui Chen Xiaowei Chen Danqing liu Ling Weng Liangcan He shaoqin liu School of Material Science and Chemical Engineering Harbin University of Science and TechnologyHarbin 150040China School of Medicine and Health and Key Laboratory of Micro-systems and Micro-structures Manufacturing of Ministry of EducationHarbin Institute of TechnologyHarbin 150001China Department of Physics School of ScienceJimei UniversityXiamen 361021China Zhengzhou Research Institute Harbin Institute of TechnologyZhengzhou 450046China

Hydrogen is garnering growing attention as a green energy source with zero carbon ***,most hydrogen production technologies still rely on the consumption of fossil fuels and are therefore *** has driven the search for more environmentally friendly methods of hydrogen *** this work,we present an innovative approach to enhance hydrogen generation via electrostatic interaction in the Escherichia coli and defective titanium dioxide(TiO_(2−x))*** method involves narrowing the forbidden bandwidth of TiO2 while introducing defect bands into its conduction band to facilitate visible light absorption and efficient charge *** biohybrid system,consisting of *** and TiO_(2−x),demonstrates a remarkable capability to produce 1.25 mmol of hydrogen within a 3-h timeframe under visible light *** accomplishment signifies a 3.31-fold rise in hydrogen production in comparison to ***,signifying a substantial enhancement in hydrogen production ***,we delve into the alterations in biological metabolites associated with hydrogen production and the changes in electron transfer in different biohybrid *** provides valuable insights into the understanding of the intrinsic mechanisms that drive the *** work introduces a novel and promising avenue for achieving this exciting goal.

关键词： Escherichia coli TiO_(2−x)nanoparticles biohybrid system hydrogen production

Single site catalyst with enzyme-mimic micro-environment for electroreduction of CO_(2)

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Nano Research 2022年第3期15卷 1817-1823页

作者： Chang Long Kaiwei Wan Xueying Qiu Xiaofei Zhang Jianyu Han Pengfei An Zhongjie Yang Xiang Li Jun Guo Xinghua Shi Hui Wang Zhiyong Tang shaoqin liu School of Materials Science and Engineering MOE Key Laboratory of Micro-systems and Micro-structures ManufacturingHarbin Institute of TechnologyHarbin150080China CAS key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing100190China University of Chinese Academy of Sciences Beijing100049China Institute of High Energy Physics CAS Beijing100049China

Single site catalysts provide a unique platform for mimicking natural enzyme due to their tunable interaction between metal center and coordinated ***,most works have focused on preparing structural and functional models of nature enzyme,with less reports also taking the local chemical environment,i.e.,functional/catalytic residues around the active site which is an essential feature of enzymes,into ***,we report a Co-centered porphyrinic polymer containing the enzyme-mimic micro-environment,where the linker triazole over CoN4 site enables formation of hydrogen bond with the*COOH intermediate,thus promoting the electrocatalytic reduction of CO_(2).As-prepared catalyst achieves the CO_(2)-to-CO conversion of 5,788 h^(−1) turnover frequency value and near unit(~96%)faradaic efficiency at−0.61 V versus reversible hydrogen *** strategy will bring new dimension of designing highly active single-site catalysts.

关键词： single-site catalyst CO_(2)electroreduction enzyme-mimic

Boosting image-guiding radiation therapy through W_(18)O_(49) nanospheres and the second near-infrared light irradiation

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Nano Research 2022年第3期15卷 2315-2323页

作者： Nannan Zheng Shouhao Zhang Lu Wang Zhilin Qi Qiang Peng Lingrui Jian Yang Bai Yue Feng Jiachen Shen Ranxu Wang Jia Jiao Wanhai Xu shaoqin liu School of Life Science and Technology MOE Key Laboratory of Micro-systems and Micro-structures ManufacturingHarbin Institute of TechnologyHarbin 150080China NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy Harbin Medical UniversityHarbin 150001China The First Affiliated Hospital Department of EndodonticsHarbin Medical UniversityHarbin 150080China Department of Gynecological Radiotherapy Harbin Medical University Cancer HospitalHarbin 150081China

More than 60%of cancer patients receive radiation therapy(RT)during their anticancer ***,there is a huge challenge to improve the therapeutic efficacy of RT in less radioresponsive tumors and decrease damages dealt to the surrounding healthy ***,we have reported the development of an efficacious RT treatment of relatively radio-resistant breast cancer using W_(18)O_(49)nanospheres and the second near-infrared(NIR)light *** the X-ray attenuation ability and photothermal effect,together with ability to generate intracellular singlet oxygen and·OH,W_(18)O_(49)nanospheres can significantly increase radiation-induced DNA damage and decrease the mitochondrial membrane potential of cancer cells during RT,causing in nearby three-times improvement in inhibiting the proliferation of 4T1 *** in vivo evaluations verify that a rather effective therapeutic outcome is achieved by treatment of 4T1 tumor xenograft with NIR-enhanced RT using W_(18)O_(49)***,the X-ray attenuation ability and the strong near-infrared absorption of W_(18)O_(49)nanospheres have enabled highly resolved in vivo computer tomography(CT)/photoacoustic(PA)*** work presents an“all-in-one”synergistic platform to improve the therapeutic efficacy of RT in less radioresponsive tumors,therefore opening a new door for multimodal cancer therapy.

关键词： W_(18)O_(49) tumor metastasis radiosensitizer phototherapy singlet oxygen

Encapsulation of live cells by metal-organic frameworks for viability protection

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Science China Materials 2019年第6期62卷 885-891页

作者： Chao Sun Lin Chang Ke Hou shaoqin liu Zhiyong Tang School of Material Science and Engineering Harbin Institute of Technology CAS Key Lab of Nanosystem and Hierarchy Fabrication National Center for Nanoscience and Technology State Key Laboratory of Urban Water Resource and Environment Harbin Institute of Technology

In this study, a yeast@ZIF-8 core–shell composite material was successfully synthesized under room temperature in aqueous solution. The ZIF-8 shell endowed the inner yeast cells with a considerably extended lifetime without any nutrients at 4°C. Compared with the bare yeast cells, most coated yeast cells were kept alive even when cultured in zymolyase solution for 3h. Furthermore, the encapsulated yeast cells could be reactivated and regrown by dissolving the ZIF-8 shell with competitive coordination interactions.

关键词： live cells ZIF-& viability protection

扎实推动共同富裕：巩固党的执政基础的战略选择

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探索 2022年第5期 42-55+2页

作者：张等文刘绍覃东北师范大学政法学院

人民群众的认可、拥护和支持是中国共产党执政的牢固根基。中国共产党之所以能够在革命、建设和改革的百年历程中，实现从夺取政权到执掌政权并长期执政，根本原因就在于赢得了民心，获得了人民群众的信任和支持。实现共同富裕是全体人... 详细信息

人民群众的认可、拥护和支持是中国共产党执政的牢固根基。中国共产党之所以能够在革命、建设和改革的百年历程中，实现从夺取政权到执掌政权并长期执政，根本原因就在于赢得了民心，获得了人民群众的信任和支持。实现共同富裕是全体人民的共同期盼，是党赢得民心的重要途径，是关系党的执政基础的重大政治问题。扎实推动共同富裕，是中国共产党为了满足人民群众美好生活需要作出的重大战略部署，是党“立党为公、执政为民”理念的重要体现，是党防范化解执政风险、巩固执政地位、夯实群众基础的现实需要。新时代扎实推动共同富裕，必须坚持党的集中统一领导，贯彻落实共享理念，构建初次分配、再分配、三次分配协调配套的基础性制度，在高质量发展中推动共同富裕取得实质性进展，从而为党长期执政筑牢坚实基础。

关键词：中国共产党共同富裕执政基础新时代

以民主促民生:发展全过程人民民主的民生逻辑

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政治学研究 2023年第2期 49-60,M0003,M0004页

作者：张等文刘绍覃东北师范大学政法学院吉林省长春市130117

发展民主是解决民生问题的重要抓手,保障和改善民生离不开民主制度的有效运转。作为社会主义民主政治发展的新形态,全过程人民民主具有鲜明的人民性,蕴含着“以民主促民生”的价值导向逻辑。所谓以民主促民生,即是通过发展全过程人民民... 详细信息

发展民主是解决民生问题的重要抓手,保障和改善民生离不开民主制度的有效运转。作为社会主义民主政治发展的新形态,全过程人民民主具有鲜明的人民性,蕴含着“以民主促民生”的价值导向逻辑。所谓以民主促民生,即是通过发展全过程人民民主来更好地保障和改善民生,这既是在推进全过程人民民主实践中坚持以人民为中心的发展理念的内在要求,又是全过程人民民主超越西式民主的优势所在。全过程人民民主以民主选举聚合民生需求偏好,以民主协商制定民生公共政策,以民主监督推进民生政策有力执行,以民主立法为民生建设提供法治保障,把民主机制贯穿于民生建设全过程,有助于切实解决人民群众需要解决的“急难愁盼”问题。新时代以全过程人民民主促进民生建设,要加强党的全面领导,健全民主链条,增强人民群众的参与意识,将全过程人民民主制度优势转化为民生建设绩效,不断推动以民主促民生建设的高质量发展。

关键词：中国共产党全过程人民民主民生以民主促民生

利用双金属纳米颗粒协同提高抗生素对耐碳青霉烯类细菌的疗效

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Science China Materials 2023年第7期66卷 2885-2892页

作者：赵晓慧刘绍琴蒋兴宇 School of Life Science and Technology Harbin Institute of TechnologyHarbin 150001China Shenzhen Key Laboratory of Smart Healthcare Engineering Guangdong Provincial Key Laboratory of Advanced BiomaterialsDepartment of Biomedical EngineeringSouthern University of Science and TechnologyShenzhen 518055China

细菌对碳青霉烯类抗生素耐药性的日益增加,已成为一个备受关注的问题.联合治疗是应对耐药细菌感染的有效策略.在本研究中,双金属纳米颗粒(AuRh NPs)与小分子抗生素(亚胺培南)具有协同抗菌作用,它们通过增加细菌胞内的活性氧水平和增强... 详细信息

细菌对碳青霉烯类抗生素耐药性的日益增加,已成为一个备受关注的问题.联合治疗是应对耐药细菌感染的有效策略.在本研究中,双金属纳米颗粒(AuRh NPs)与小分子抗生素(亚胺培南)具有协同抗菌作用,它们通过增加细菌胞内的活性氧水平和增强细菌膜的渗透性表现出优异的抗菌效果.特别地,联合治疗恢复了亚胺培南对耐碳青霉烯类肺炎克雷伯菌(CRKP)的疗效,最低抑菌浓度降低了128倍.在治疗肺部感染时,AuRh NPs与亚胺培南联合使用能更有效地抑制CRKP感染,与单独使用亚胺培南或AuRh NPs实验组相比,小鼠的存活率提升了50%.体外和体内安全性研究表明,AuRh NPs与亚胺培南联合使用没有明显的毒性.这种联合疗法为耐药细菌感染提供了有效的治疗策略.

关键词： antibiotic resistance combination therapy bimetallic nanoparticles antibiotics lung infection

面向穿戴或植入式临床应用的ssDNAGFET纳米生物传感器发展现状

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科技导报 2022年第13期40卷 50-56页

作者：郝壮刘绍琴潘昀路哈尔滨工业大学机电工程学院哈尔滨150000 哈尔滨工业大学化工与化学学院哈尔滨150000

单链DNA探针-石墨烯场效应管(ssDNA-GFET)纳米生物传感器在可穿戴或可植入式临床应用领域有着广泛前景。介绍了现有ssDNA-GFET的应用、标志物检测性能提升方法、真实人体样本溶液中标志物检测,以及面向可穿戴或可植入式临床应用的柔性... 详细信息

单链DNA探针-石墨烯场效应管(ssDNA-GFET)纳米生物传感器在可穿戴或可植入式临床应用领域有着广泛前景。介绍了现有ssDNA-GFET的应用、标志物检测性能提升方法、真实人体样本溶液中标志物检测,以及面向可穿戴或可植入式临床应用的柔性化研发现状,总结了ssDNA-GFET在投入实际可穿戴或可植入式临床应用前有待解决的问题。

关键词：单链DNA探针石墨烯场效应管生物传感器柔性电子

Interaction mechanism of POMs and simulated biological membranes studied by SPR imaging

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Interaction mechanism of POMs and simulated biological membr...