Plasmon-driven photocatalytic molecular transformations on metallic nanostructure surfaces: mechanistic insights gained from plasmon-enhanced Raman spectroscopy

2021 ◽  
Vol 6 (4) ◽  
pp. 250-280
Author(s):  
Kexun Chen ◽  
Hui Wang

This Review Article elaborates on the insights gained from in situ plasmon-enhanced Raman spectroscopy, which shed light on the complex mechanisms underpinning plasmon-driven photocatalytic molecular transformations on nanostructured metal surfaces.

1988 ◽  
Vol 33-34 ◽  
pp. 1324-1331 ◽  
Author(s):  
Kikujiro Ishii ◽  
Satoshi Mitsumura ◽  
Yukinobu Hibino ◽  
Ryoji Hagiwara ◽  
Hideyuki Nakayama

2020 ◽  
Vol 20 (10) ◽  
pp. 6604-6609
Author(s):  
Shanshan Liu ◽  
Guochun Zhang ◽  
Kai Feng ◽  
Yanyang Han ◽  
Tao He ◽  
...  

ACS Nano ◽  
2021 ◽  
Author(s):  
Minmin Hu ◽  
Zhaojin Li ◽  
Tao Hu ◽  
Shihao Zhu ◽  
Chao Zhang ◽  
...  

Carbon ◽  
2021 ◽  
Vol 177 ◽  
pp. 428
Author(s):  
Xiaoqin Cheng ◽  
Huijun Li ◽  
Zhenxin Zhao ◽  
Yong-zhen Wang ◽  
Xiaomin Wang

2021 ◽  
Vol 7 (2) ◽  
pp. eabe3097
Author(s):  
Hongwei Sheng ◽  
Jingjing Zhou ◽  
Bo Li ◽  
Yuhang He ◽  
Xuetao Zhang ◽  
...  

It has been an outstanding challenge to achieve implantable energy modules that are mechanically soft (compatible with soft organs and tissues), have compact form factors, and are biodegradable (present for a desired time frame to power biodegradable, implantable medical electronics). Here, we present a fully biodegradable and bioabsorbable high-performance supercapacitor implant, which is lightweight and has a thin structure, mechanical flexibility, tunable degradation duration, and biocompatibility. The supercapacitor with a high areal capacitance (112.5 mF cm−2 at 1 mA cm−2) and energy density (15.64 μWh cm−2) uses two-dimensional, amorphous molybdenum oxide (MoOx) flakes as electrodes, which are grown in situ on water-soluble Mo foil using a green electrochemical strategy. Biodegradation behaviors and biocompatibility of the associated materials and the supercapacitor implant are systematically studied. Demonstrations of a supercapacitor implant that powers several electronic devices and that is completely degraded after implantation and absorbed in rat body shed light on its potential uses.


Gels ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 48
Author(s):  
Ana M. Herrero ◽  
Claudia Ruiz-Capillas

Considerable attention has been paid to emulsion gels (EGs) in recent years due to their interesting applications in food. The aim of this work is to shed light on the role played by chia oil in the technological and structural properties of EGs made from soy protein isolates (SPI) and alginate. Two systems were studied: oil-free SPI gels (SPI/G) and the corresponding SPI EGs (SPI/EG) that contain chia oil. The proximate composition, technological properties (syneresis, pH, color and texture) and structural properties using Raman spectroscopy were determined for SPI/G and SPI/EG. No noticeable (p > 0.05) syneresis was observed in either sample. The pH values were similar (p > 0.05) for SPI/G and SPI/EG, but their texture and color differed significantly depending on the presence of chia oil. SPI/EG featured significantly lower redness and more lightness and yellowness and exhibited greater puncture and gel strengths than SPI/G. Raman spectroscopy revealed significant changes in the protein secondary structure, i.e., higher (p < 0.05) α-helix and lower (p < 0.05) β-sheet, turn and unordered structures, after the incorporation of chia oil to form the corresponding SPI/EG. Apparently, there is a correlation between these structural changes and the textural modifications observed.


Author(s):  
Wendy Rusli ◽  
Pavan Kumar Naraharisetti ◽  
Wee Chew

The use of Raman spectroscopy for reaction monitoring has been successfully applied over the past few decades. One complication in such usage is the applicability for quantitative reaction studies. This...


1991 ◽  
Vol 62 (7) ◽  
pp. 1743-1745 ◽  
Author(s):  
F. Spinella ◽  
G. A. Baratta ◽  
G. Strazzulla

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