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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Volpati, Diogo Aoki, Pedro H. B. Alessio, Priscila Pavinatto, Felippe J. Miranda, Paulo B. Constantino, Carlos J. L. Oliveira, Osvaldo N. |
| Description | Country affiliation: Brazil Author Affiliation: Volpati D ( São Carlos Institute of Physics, University of São Paulo, CP 369, São Carlos, SP 13560-970, Brazil.); Aoki PH ( Faculty of Science and Technology, UNESP, Presidente Prudente, CEP 19060-900 SP,Brazil.); Alessio P ( Faculty of Science and Technology, UNESP, Presidente Prudente, CEP 19060-900 SP,Brazil.); Pavinatto FJ ( São Carlos Institute of Physics, University of São Paulo, CP 369, São Carlos, SP 13560-970, Brazil.); Miranda PB ( São Carlos Institute of Physics, University of São Paulo, CP 369, São Carlos, SP 13560-970, Brazil.); Constantino CJ ( Faculty of Science and Technology, UNESP, Presidente Prudente, CEP 19060-900 SP,Brazil.); Oliveira ON ( São Carlos Institute of Physics, University of São Paulo, CP 369, São Carlos, SP 13560-970, Brazil. Electronic address: chu@ifsc.usp.br.) |
| Abstract | Investigation into nanostructured organic films has served many purposes, including the design of functionalized surfaces that may be applied in biomedical devices and tissue engineering and for studying physiological processes depending on the interaction with cell membranes. Of particular relevance are Langmuir monolayers, Langmuir-Blodgett (LB) and layer-by-layer (LbL) films used to simulate biological interfaces. In this review, we shall focus on the use of vibrational spectroscopy methods to probe molecular-level interactions at biomimetic interfaces, with special emphasis on three surface-specific techniques, namely sum frequency generation (SFG), polarization-modulated infrared reflection absorption spectroscopy (PM-IRRAS) and surface-enhanced Raman scattering (SERS). The two types of systems selected for exemplifying the potential of the methods are the cell membrane models and the functionalized surfaces with biomolecules. Examples will be given on how SFG and PM-IRRAS can be combined to determine the effects from biomolecules on cell membrane models, which include determination of the orientation and preservation of secondary structure. Crucial information for the action of biomolecules on model membranes has also been obtained with PM-IRRAS, as is the case of chitosan removing proteins from the membrane. SERS will be shown as promising for enabling detection limits down to the single-molecule level. The strengths and limitations of these methods will also be discussed, in addition to the prospects for the near future. |
| File Format | HTM / HTML |
| ISSN | 00018686 |
| Volume Number | 207 |
| e-ISSN | 18733727 |
| Journal | Advances in Colloid and Interface Science |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-05-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Chemistry Biomimetic Materials Chemistry Biophysics Methods Cell Membrane Models, Biological Nanostructures Animals Metabolism Biophysical Phenomena Trends Humans Membranes, Artificial Journal Article Research Support, Non-u.s. Gov't Review |
| Content Type | Text |
| Resource Type | Article |
| Subject | Colloid and Surface Chemistry Physical and Theoretical Chemistry Surfaces and Interfaces |
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