{"title":"巯基化MCM-41介孔分子筛对胶体纳米颗粒粒径的判别","authors":"Priyabrata Mukherjee, M. Sastry, R. Kumar","doi":"10.1039/B002419H","DOIUrl":null,"url":null,"abstract":"Thiol-functionalized MCM-41 mesoporous materials with a well-defined pore size of 40 A may be used to discriminate between colloidal gold and silver particles in a mixture. More specifically, the thiol-functionalized MCM-41 material selectively entraps colloidal gold particles (size 35 A) in the pores from a mixture of the gold and silver particles of size 70 A. The gold particles are held in the matrix via thiolate linkages and this process has been studied using UV-vis spectroscopy and thermogravimetry/differential thermal analysis. This approach is promising for application in bioseparation methodologies as well as in the generation of one-dimensional superstructure assemblies","PeriodicalId":20106,"journal":{"name":"PhysChemComm","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2000-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":"{\"title\":\"Size discrimination of colloidal nanoparticles by thiol-functionalized MCM-41 mesoporous molecular sieves\",\"authors\":\"Priyabrata Mukherjee, M. Sastry, R. Kumar\",\"doi\":\"10.1039/B002419H\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Thiol-functionalized MCM-41 mesoporous materials with a well-defined pore size of 40 A may be used to discriminate between colloidal gold and silver particles in a mixture. More specifically, the thiol-functionalized MCM-41 material selectively entraps colloidal gold particles (size 35 A) in the pores from a mixture of the gold and silver particles of size 70 A. The gold particles are held in the matrix via thiolate linkages and this process has been studied using UV-vis spectroscopy and thermogravimetry/differential thermal analysis. This approach is promising for application in bioseparation methodologies as well as in the generation of one-dimensional superstructure assemblies\",\"PeriodicalId\":20106,\"journal\":{\"name\":\"PhysChemComm\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2000-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"PhysChemComm\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1039/B002419H\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"PhysChemComm","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1039/B002419H","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Size discrimination of colloidal nanoparticles by thiol-functionalized MCM-41 mesoporous molecular sieves
Thiol-functionalized MCM-41 mesoporous materials with a well-defined pore size of 40 A may be used to discriminate between colloidal gold and silver particles in a mixture. More specifically, the thiol-functionalized MCM-41 material selectively entraps colloidal gold particles (size 35 A) in the pores from a mixture of the gold and silver particles of size 70 A. The gold particles are held in the matrix via thiolate linkages and this process has been studied using UV-vis spectroscopy and thermogravimetry/differential thermal analysis. This approach is promising for application in bioseparation methodologies as well as in the generation of one-dimensional superstructure assemblies
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