scholarly journals Interactions of Alamethicin with Model Cell Membranes Investigated Using Sum Frequency Generation Vibrational Spectroscopy in Real Time in Situ

2010 ◽  
Vol 114 (9) ◽  
pp. 3334-3340 ◽  
Author(s):  
Shuji Ye ◽  
Khoi Tan Nguyen ◽  
Zhan Chen
Keyword(s):  
Real Time ◽  
Vibrational Spectroscopy ◽  
Cell Membranes ◽  
Sum Frequency Generation ◽  
Sum Frequency ◽  
Model Cell ◽  
Frequency Generation

scholarly journals Applications of sum-frequency generation vibrational spectroscopy in friction interface

Friction ◽  
2021 ◽  
Author(s):  
Zhifeng Liu ◽  
Mengmeng Liu ◽  
Caixia Zhang ◽  
Hongyan Chu ◽  
Liran Ma ◽  
...  
Keyword(s):  
Real Time ◽  
Vibrational Spectroscopy ◽  
Theoretical Background ◽  
Sum Frequency Generation ◽  
Molecular Structures ◽  
Nonlinear Optical Spectroscopy ◽  
Sum Frequency ◽  
Frequency Generation ◽  
Nondestructive Investigation

AbstractSum-frequency generation (SFG) vibrational spectroscopy is a second-order nonlinear optical spectroscopy technique. Owing to its interfacial selectivity, SFG vibrational spectroscopy can provide interfacial molecular information, such as molecular orientations and order, which can be obtained directly, or molecular density, which can be acquired indirectly. Interfacial molecular behaviors are considered the basic factors for determining the tribological properties of surfaces. Therefore, owing to its ability to detect the molecular behavior in buried interfaces in situ and in real time, SFG vibrational spectroscopy has become one of the most appealing technologies for characterizing mechanisms at friction interfaces. This paper briefly introduces the development of SFG vibrational spectroscopy and the essential theoretical background, focusing on its application in friction and lubrication interfaces, including film-based, complex oil-based, and water-based lubricating systems. Real-time detection using SFG promotes the nondestructive investigation of molecular structures of friction interfaces in situ with submonolayer interface sensitivity, enabling the investigation of friction mechanisms. This review provides guidance on using SFG to conduct friction analysis, thereby widening the applicability of SFG vibrational spectroscopy.

Study of FeOx/Au inverse model catalysts by in situ sum frequency generation vibrational spectroscopy

2009 ◽  
Vol 96 (2) ◽  
pp. 345-356 ◽  
Author(s):  
Orsolya Hakkel ◽  
Zoltán Pászti ◽  
Tamás Keszthelyi ◽  
Krisztina Frey ◽  
László Guczi
Keyword(s):  
Vibrational Spectroscopy ◽  
Sum Frequency Generation ◽  
Inverse Model ◽  
Model Catalysts ◽  
Sum Frequency ◽  
Frequency Generation

Directly monitoring the active sites of charge transfer in heterocycles in situ and in real time

2019 ◽  
Vol 55 (4) ◽  
pp. 541-544 ◽  
Author(s):  
Shuji Ye ◽  
Junjun Tan ◽  
Kangzhen Tian ◽  
Chuanzhao Li ◽  
Jiahui Zhang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Real Time ◽  
Vibrational Spectroscopy ◽  
Active Sites ◽  
Electronic States ◽  
Sum Frequency Generation ◽  
Vibrational Modes ◽  
Label Free ◽  
Sum Frequency

Coherent degenerate infrared-infrared-visible sum frequency generation vibrational spectroscopy provides a powerful label-free probe for identifying the vibrational modes that are coupled through the electronic states in situ and in real time.

scholarly journals Phase transition behaviors of the supported DPPC bilayer investigated by sum frequency generation (SFG) vibrational spectroscopy and atomic force microscopy (AFM)

2016 ◽  
Vol 18 (3) ◽  
pp. 1411-1421 ◽  
Author(s):  
Heng-Liang Wu ◽  
Yujin Tong ◽  
Qiling Peng ◽  
Na Li ◽  
Shen Ye
Keyword(s):  
Phase Transition ◽  
Atomic Force Microscopy ◽  
Vibrational Spectroscopy ◽  
Sum Frequency Generation ◽  
Sum Frequency ◽  
Force Microscopy ◽  
Atomic Force ◽  
Dppc Bilayer ◽  
Frequency Generation

The phase transition behaviors of a supported bilayer of dipalmitoylphosphatidyl-choline (DPPC) have been systematically evaluated by in situ sum frequency generation (SFG) vibrational spectroscopy and atomic force microscopy (AFM).

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