Hydrogels are water swollen, crosslinked polymeric structures, produced by the simple reaction of one or more monomers or by association of bonds such as hydrogen bonds and strong van der Waals interactions between chains. A large amount of today's research is focused on probably the most interesting among them, the so-called "smart" hydrogels. A representative of this class of hydrogels is a polymer system with a defined phase transition capable to abruptly swell to many times its original size or to collapse into a compact mass when stimulated externally [1]. The following studies demonstrate some of the advantages and the strength of the complementary employment of Field Emission Scanning Electron Microscopy (FESEM) and Scanning Force Microscopy (SFM) in the characterization of hydrogels: Highly resolved structural information by FESEM are complemented by SFM using micrometer-sized probing spheres for quantitative measurements of the local micromechanical.
{"title":"Hydrogels: Characterization at the Micro- and Nano-scale by SEM and SFM","authors":"T. Matzelle, R. Reichelt","doi":"10.1002/IMIC.200990057","DOIUrl":"https://doi.org/10.1002/IMIC.200990057","url":null,"abstract":"Hydrogels are water swollen, crosslinked polymeric structures, produced by the simple reaction of one or more monomers or by association of bonds such as hydrogen bonds and strong van der Waals interactions between chains. A large amount of today's research is focused on probably the most interesting among them, the so-called \"smart\" hydrogels. A representative of this class of hydrogels is a polymer system with a defined phase transition capable to abruptly swell to many times its original size or to collapse into a compact mass when stimulated externally [1]. The following studies demonstrate some of the advantages and the strength of the complementary employment of Field Emission Scanning Electron Microscopy (FESEM) and Scanning Force Microscopy (SFM) in the characterization of hydrogels: Highly resolved structural information by FESEM are complemented by SFM using micrometer-sized probing spheres for quantitative measurements of the local micromechanical.","PeriodicalId":371645,"journal":{"name":"GIT laboratory journal Europe","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114862276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mass spectrometry (MS) is probably one of the techniques that has developed the most in the last few years. The IMSC, 18 th International Mass Spectrometry Conference, an event dedicated to MS had been held in Bremen, Germany, from August 30 to September 4, 2009. One of the manufacturers at IMSC was Agilent, which presented itself as a solution provider showing not only MS systems but full analytical solutions including separation techniques and application software.
{"title":"New Developments in Mass Spectrometry","authors":"K. Miller","doi":"10.1039/2045-7553","DOIUrl":"https://doi.org/10.1039/2045-7553","url":null,"abstract":"Mass spectrometry (MS) is probably one of the techniques that has developed the most in the last few years. The IMSC, 18 th International Mass Spectrometry Conference, an event dedicated to MS had been held in Bremen, Germany, from August 30 to September 4, 2009. One of the manufacturers at IMSC was Agilent, which presented itself as a solution provider showing not only MS systems but full analytical solutions including separation techniques and application software.","PeriodicalId":371645,"journal":{"name":"GIT laboratory journal Europe","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126294167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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