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Synthesis of a PEG-PNIPAm Thermosensitive Dendritic Copolymer and Investigation of Its Self-association

Chinese Journal of Polymer Science 2015年第1期33卷 192-202页

作者： farzad seidi Parvin Heshmati Department of Chemistry Sanandaj Branch Islamic Azad University University of Kurdistan Department of Chemistry

A Novel thermosensitive dendritic copolymer based on polyethylene glycol（PEG） and poly（Nisopropylacrylamide）（PNIPAm） with a cloud point（CP） around 36 ？C was successfully synthesized by preparation of a dendritic polyol and followed by atom transfer radical polymerization（ATRP） of N-isopropylacrylamide. The dendritic copolymer was characterized using gel-permeation chromatography（GPC）, FTIR and 1H-NMR spectroscopy. The selfassociation behavior of the copolymer in aqueous medium was investigated by dynamic light scattering（DLS） and transmission electron microscopy（TEM）. These investigations confirmed that the dendritic copolymer showed different association behaviors at various temperatures.

关键词： Thermosensitive Dendritic Atom transfer radical polymerization Poly(N-isopropylacrylamide) Polyethylene glycol.

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Cellulose-MXene composites: New platforms with outstanding multifunctional characteristics

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Journal of Bioresources and Bioproducts 2024年第3期9卷 243-245页

作者： farzad seidi Wensi Jiang Zhaochuan Yu Chao Deng Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials Nanjing Forestry UniversityNanjing 210037China Macromolecular Chemistry and Bavarian Polymer Institute University of BayreuthBayreuth 95440Germany

The progress of society has caused a quick rise in the requirement for materials with superior *** composite materials demonstrate exceptional performance due to the synergistic effects resulting from the combination of unique properties exhibited by their constituent *** advantageous characteristic enables these materials to leverage the collective strengths of each component,leading to their outstanding *** leveraging the strengths of each individual component,the shortcomings can be overcome and the strong points can be shared effectively.

关键词： composites MXene composite

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Advanced Surfaces by Anchoring Thin Hydrogel Layers of Functional Polymers

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Chinese Journal of Polymer Science 2021年第1期39卷 14-34,I0005页

作者： farzad seidi Wei-Feng Zhao Hui-Ning Xiao Yong-Can Jin Mohammad Reza Saeb Chang-Sheng Zhao Provincial Key Lab of Pulp&Paper Sci and Tech and Joint International Research Lab of Lignocellulosic Functional MaterialsNanjing Forestry UniversityNanjing 210037China College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065China Department of Chemical Engineering University of New BrunswickFrederictonNBE3B 5A3 Canada Department of Resin and Additives Institute for Color Science and Technology16765-654TehranIran

Surface design and engineering is a critical tool to improve the interaction of materials with their surroundings. Immobilization of soft hydrogels is one of the attractive strategies to achieve surface modification. The goal of this review is to provide a comprehensive overview of the different strategies used for surface tethering of hydrogel layers via crosslinking immobilization of pre-fabricated functional polymers. In this strategy, crosslinkable polymers are first prepared via various polymerization techniques or post-functionalization of polymers. Afterwards, the crosslinkable polymers are attached or tethered on the surfaces of substrates using a variety of approaches including photo-crosslinking, click reactions, reversible linkages, etc. For each case, the principles of hydrogel tethering have been explained in detail with representative ***, the potential applications of the as-modified substrates in specific cases have also been addressed and overviewed.

关键词： Surface-anchoring Polymerization Thin hydrogel film Immobilization Post-functionalization

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Green CoNi_(2)S_(4)/porphyrin decorated carbon-based nanocomposites for genetic materials detection

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Journal of Bioresources and Bioproducts 2021年第3期6卷 215-222页

作者： Mohammad Reza Saeb Navid Rabiee farzad seidi Bahareh Farasati Far Mojtaba Bagherzadeh Eder C.Lima Mohammad Rabiee Universitéde Lorraine CentraleSupélecLMOPSF57000 MetzFrance Department of Chemistry Sharif University of TechnologyTehranIran Provincial Key Lab of Pulp&Paper Sci and Tech and Joint International Research Lab of Lignocellulosic Functional MaterialsNanjing Forestry UniversityNanjing 210037China Department of Chemistry Iran University of Science and TechnologyTehranIran Institute of Chemistry Federal University of Rio Grande do Sul(UFRGS)Av.Bento Goncalves 9500Postal Box15003ZIP91501-970 Brazil Biomaterial Group Department of Biomedical EngineeringAmirkabir University of TechnologyTehranIran

A one-pot synthesis method was conceptualized and implemented to develop green carbon-based nanocomposites working as *** was synthesized to adorn the surface of nanocomposites making them highly sensitive for giving rise to π-π interactions between the genetic materials,proteins and porphyrin *** hydrogen bond formed between the proteins(analytes)and the nitrogen in the porphyrin structure as well as the surface hydroxyl groups was equally *** this context,different forms of porphyrins were incorporated to explore the interrelationship between the surface morphology and the ability of detection of genetic material and/or proteins by the aid of the synthesized *** phenomenon was conceptualized to optimize the interactions between the biomolecules and the substrate by reaching significant biosensor application in the presence of Anti-cas9 protein and sgRNA(concentration changed between 10 and 500 n mol/L).Almost full quenching of fluorescence emission was observed after addition of 300 n mol/L of Anti-cas9 protein and 250 n mol/L of ***,CoNi_(2)S_(4)provided 12%-29%cytotoxicity in both HEK-293 and PC12 cell lines.

关键词： Biosensor Biomedicine Anti-cas9 Green nanocomposite sgRNA

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