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Hydrophobic modification of polysaccharides and the construction and properties of their micelles:a review of applications in the field of biomedicine

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Science China Chemistry 2024年第6期67卷 1881-1903页

作者： Dayang Wang Xiaohua Li Huanchen Yao Xin Liu Yan Gao Hailin Cong Bing Yu Youqing Shen College of Chemistry and Chemical Engineering College of Life SciencesCollege of Materials Science and EngineeringInstitute of Biomedical Materials and EngineeringQingdao UniversityQingdao266071China state key laboratory of Bio-Fibers and Eco-Textiles Qingdao UniversityQingdao266071China School of Materials Science and Engineering Shandong University of TechnologyZibo255000China key laboratory of Biomass Chemical Engineering of Ministry of Education Center for Bionanoengineeringand Department of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027China

Nanomedicine delivery technology plays an important role in modern medicine and has shown good therapeutic effects in scientific *** have the characteristics of wide sources,excellent biocompatibility,and *** addition,there are multifunctional groups on the main chain of polysaccharides,which can be surface-modified or functionalized to have targeting ability through specific sugar *** polysaccharide micelles with good biocompatibility,degradability,high safety,easy structural modification,and special core-shell structure are regarded as ideal carriers for ***,this review is focused on the hydrophobic modification designs of polysaccharides,the preparation methods and characteristics of micelles,and the applications of amphiphilic polysaccharide micelles in the field of *** is expected to provide some ideas and inspiration for the design of polysaccharide drug carriers.

关键词： polysaccharide hydrophobic modification micelle drug delivery biomedicine

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一种可抑制脓毒症的促愈合短链抗菌肽（英文）

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Science China Materials 2024年

作者：任泽凯丁鑫王玉梅吴晗刘鑫曹阳丛海林申有青于冰 College of Chemistry and Chemical Engineering College of Materials Science and Engineering Institute of Biomedical Materials and Engineering Qingdao University state key laboratory of Bio-Fibers and Eco-Textiles Qingdao University School of Materials Science and Engineering Shandong University of Technology key laboratory of Biomass Chemical Engineering of Ministry of Education Center for Bionanoengineering and Department of Chemical and Biological Engineering Zhejiang University

慢性伤口遭遇多药耐药菌感染是致命的,严重者会引发脓毒症.抗菌肽的广谱抗菌特性和良好的抗耐药性被广泛用于伤口护理领域.我们以SiO2微球为固定相,提取细菌的细胞膜制备细菌细胞膜色谱（BCMC）.固相法合成抗菌肽文库并经BCMC筛选出抗菌...

慢性伤口遭遇多药耐药菌感染是致命的,严重者会引发脓毒症.抗菌肽的广谱抗菌特性和良好的抗耐药性被广泛用于伤口护理领域.我们以SiO2微球为固定相,提取细菌的细胞膜制备细菌细胞膜色谱（BCMC）.固相法合成抗菌肽文库并经BCMC筛选出抗菌肽LKAHR （简称LS5）. LS5具有生物安全、广谱抗菌以及抗耐药性等特点,制备明胶基抗菌水凝胶（LS5-gel）以更好应用于伤口.在伤口愈合模型中发现LS5-gel具有良好的体内杀菌性能以及促进伤口愈合能力.在脓毒症模型中发现LS5对脓毒症感染具有明显的抑制作用.本工作对下一代抗菌药物的选取及慢性伤口愈合治疗具有重要指导意义.

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The drug loading behavior of PAMAM dendrimer:Insights from experimental and simulation study

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Science China(Technological Sciences) 2023年第4期66卷 1129-1140页

作者： ZHOU LiPing LI JiaWei YU Bing ZHANG Jun HU Hao CONG HaiLin SHEN YouQing Institute of Biomedical Materials and Engineering College of Materials Science and EngineeringQingdao UniversityQingdao 266071China state key laboratory of Bio-Fibers and Eco-Textiles Qingdao UniversityQingdao 266071China Beijing key laboratory for Bioengineering and Sensing Technology School of Chemistry and Biological EngineeringUniversity of Science and Technology BeijingBeijing 100083China School of Materials Science and Engineering China University of PetroleumQingdao 266580China Center for Bionanoengineering and key laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China

Poly(amidoamine)(PAMAM)dendrimers are widely studied as drug vectors due to their particular structure and excellent *** molecules can be loaded in the internal cavity of dendrimers or adsorbed on the *** this paper,the interaction force and spatial configuration between PAMAM and several typical chemotherapy drugs(doxorubicin(DOX),paclitaxel(TAX),hydroxycamptothecin(HCPT))is studied by molecular dynamics(MD)*** essential parameters of dendrimers as drug carriers are analyzed by combining experiments and MD simulations,including particle size,drug loading,drug release,and *** simulation of dendrimer@drug complexes demonstrates that many cavities are semi-open,and most drug molecules are not completely *** internal structure of PAMAM dendrimers became looser with more extended nuclei,which increased the non-covalent interactions between PAMAM dendrimers and drug *** umbrella sampling simulations reveal that the change of binding energies between dendrimers and drug molecules is responsible for the variation in drug release *** study provides valuable enlightenment information for the drug loading/release of PAMAM dendrimers.

关键词： PAMAM dendrimer chemotherapy molecular dynamics simulation binding energies

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