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|a 10.1021/acs.langmuir.1c02737
|2 doi
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|a eng
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| 100 |
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|a Wang, Jie
|e verfasserin
|4 aut
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| 245 |
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|a Investigating Thin Silicone Oil Films Using Four-Wave Mixing Spectroscopy and Sum Frequency Generation Vibrational Spectroscopy
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|c 2021
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 14.12.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a This article applies four-wave mixing (FWM) spectroscopy, a third-order nonlinear optical spectroscopic technique which is not intrinsically surface- or interface-sensitive, to study silicone oil thin films, supplemented by second-order nonlinear-optical sum frequency generation (SFG) vibrational spectroscopy. Although studies of thin organic films using coherent antistokes Raman spectroscopy (CARS), a special case of FWM, have been reported previously, in this study we demonstrate the feasibility of using a more general FWM process which involves three independent excitation laser beams to investigate silicone oil thin films. The results show that the FWM method has the potential to detect and provide molecular-level information on ultrathin silicone oil layers, down to a film thickness of 1 nm. This developed FWM methodology is widely applicable and can be utilized to study important issues in the biopharmaceutical field, e.g., to examine the distribution of silicone oil on syringe glass surfaces with subnanometer sensitivity. It can also be used to study the potentially slow reactions between silicone oil and glass surfaces as proposed in the literature but without direct molecular-level information
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|a Journal Article
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|a Wloch, Gene
|e verfasserin
|4 aut
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| 700 |
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|a Lin, Ting
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Zhan
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 37(2021), 49 vom: 14. Dez., Seite 14540-14549
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|g year:2021
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|g month:12
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|u http://dx.doi.org/10.1021/acs.langmuir.1c02737
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