“模板浇铸法”制备纳米颗粒/明胶复合凝胶微球及其应用
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- 英文论文题名：Gelatin Microgels with Various Nano-objects Fabricated by "Casting" Strategy and Their Application
- 论文作者：王安河 ; 崔凌云 ; 董倩倩 ; 白硕
- 英文论文作者：Anhe Wang ; Lingyun Cui ; Qianqian Dong ; Shuo Bai ; State Key Laboratory of Biochemical Engineering ; Institute of Process Engineering ; Chinese Academy of Sciences
- 年：2016
- 作者机构：中国科学院过程工程研究所/生化工程国家重点实验室;
- 论文关键词：模板浇铸法 ; 微凝胶 ; 纳米颗粒
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十一分会：胶体与界面化学
- 语种：中文
- 分类号：TB383.1;O648.17
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十一分会 ; 胶体与界面化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：2
- 文件大小：345k
- 原文格式：D
- 会议级别：全国
摘要
本人利用"模板浇铸法"成功制备了大小均一且表面多孔的明胶微凝胶,在微凝胶的制备的过程中利用模板粒子-碳酸钙比表面积大、多孔的特性,可将多种纳米颗粒(例如金纳米颗粒、量子点、铂纳米颗粒以及磁性纳米颗粒等)以可控的方式吸附到模板粒子中。"浇筑"明胶、交联、温和条件下除去模板粒子后,即可得到负载有不同纳米颗粒的明胶微凝胶。研究发现此方法对纳米颗粒的表面性质没有严格的要求,都可以有效地将不同的纳米颗粒负载到明胶微凝胶中,赋予明胶微凝胶多功能的性质。此方法还可将不同的纳米颗粒同时引入到微凝胶中,例如可将铂以及铁磁性纳米颗粒引入到微凝胶中,此体系不仅可有效地催化o-chlorophenol与4-aminoantipyrine之间的缩合反应,而且还可以简单、方便的将纳米颗粒/微凝胶与反应体系分离。此方法被证明是一种简单、有效、低成本制备纳米颗粒/微凝胶复合体系的新途径。
Here,we prepare uniform and porous gelatin microgels by a 'casting' strategy.During the microgels fabrication,various nano-objects(gold nanoparticles,quantum dot,platinum nanoparticles and magnetic nanoparticles) can be incorporated into the templates(CaCO_3 particles) due to their large surface area and porous structure via a control manner.The gelatin microgels with various nano-objects were obtained after the procedures of gelatin "casting",cross-linking and EDTA treatment,which endows the microgels with unique combined functionality of nano-objects.Experimental data shows the method proposed here has no strict requirement in the surface physicochemical properties of nanoparticles.Meanwhile various nanoparticles can be encapsulated by the microgels simultaneously.For example,Pt and magnetic nanoparticles have been incorporated into the microgels,which can efficiently catalyze the reaction between o-chlorophenol and 4-aminoantipyrine,and can be separated from the reaction medium easily.The method here is certified to be a simple,facile,efficient and low cost one.
Here,we prepare uniform and porous gelatin microgels by a 'casting' strategy.During the microgels fabrication,various nano-objects(gold nanoparticles,quantum dot,platinum nanoparticles and magnetic nanoparticles) can be incorporated into the templates(CaCO_3 particles) due to their large surface area and porous structure via a control manner.The gelatin microgels with various nano-objects were obtained after the procedures of gelatin "casting",cross-linking and EDTA treatment,which endows the microgels with unique combined functionality of nano-objects.Experimental data shows the method proposed here has no strict requirement in the surface physicochemical properties of nanoparticles.Meanwhile various nanoparticles can be encapsulated by the microgels simultaneously.For example,Pt and magnetic nanoparticles have been incorporated into the microgels,which can efficiently catalyze the reaction between o-chlorophenol and 4-aminoantipyrine,and can be separated from the reaction medium easily.The method here is certified to be a simple,facile,efficient and low cost one.
引文
[1]Wang,A.H.;Cui,Y.;Li,J.B.;van Hest,J.C.M.,L.Adv.Funct.Marter.2012,22:2673
[2]Osada,Y.;Okuzaki,H.;Hori,H.Nature.1992,355:242
[2]Osada,Y.;Okuzaki,H.;Hori,H.Nature.1992,355:242