Smart Nanofibres: Surface sensitivity

2009 ◽  
Keyword(s):  
Surface Sensitivity

High-Resolution Scanning Electron Microscopy and Microanalysis of Supported Metal Catalysts

1999 ◽  
Vol 589 ◽  
Author(s):  
Jingyue Liu
Keyword(s):  
High Resolution ◽  
Low Voltage ◽  
Supported Catalysts ◽  
Metal Catalysts ◽  
Supported Metal Catalysts ◽  
Surface Sensitivity ◽  
Brightness Field ◽  
Backscattered Electron ◽  
Enhanced Surface ◽  
Supported Metal

AbstractThe use of a high-brightness field emission gun and novel secondary electron detection systems makes it possible to acquire nanometer-resolution surface images of bulk materials, even at low electron beam voltages. The advantages of low-voltage SEM include enhanced surface sensitivity, reduced sample charging on non-conducting materials, and significantly reduced electron range and interaction volume. High-resolution images formed by collecting the backscattered electron signal can give information about the size and spatial distribution of metal nanoparticles in supported catalysts. Low-voltage XEDS can provide compositional information of bulk samples with enhanced surface sensitivity and significantly improved spatial resolution. High-resolution SEM techniques enhance our ability to detect and, subsequently, analyze the composition of nanoparticles in supported metal catalysts. Applications of high-resolution SEM imaging and microanalysis techniques to the study of industrial supported catalysts are discussed.

Parametric analysis, response surface, sensitivity analysis, and optimization of a novel spiral-double ground heat exchanger

2021 ◽  
Vol 240 ◽  
pp. 114251
Author(s):  
Ahmed A. Serageldin ◽  
Ali Radwan ◽  
Takao Katsura ◽  
Yoshitaka Sakata ◽  
Shigeyuki Nagasaka ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Heat Exchanger ◽  
Response Surface ◽  
Parametric Analysis ◽  
Ground Heat Exchanger ◽  
Surface Sensitivity

Diamond C1score-level excitons: Surface sensitivity

2010 ◽  
Vol 82 (12) ◽  
Author(s):  
Alastair Stacey ◽  
Bruce C. C. Cowie ◽  
Julius Orwa ◽  
Steven Prawer ◽  
Alon Hoffman
Keyword(s):  
Surface Sensitivity

Ultrahigh surface sensitivity of deposited gold nanorod arrays for nanoplasmonic biosensing

2021 ◽  
Vol 23 ◽  
pp. 101046
Author(s):  
Abdul Rahim Ferhan ◽  
Youngkyu Hwang ◽  
Mohammed Shahrudin Bin Ibrahim ◽  
Shikhar Anand ◽  
Ahram Kim ◽  
...  
Keyword(s):  
Gold Nanorod ◽  
Nanorod Arrays ◽  
Surface Sensitivity

X-ray photoemission studies of the interaction of metals and metal ions with DNA

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Esha Mishra ◽  
Subrata Majumder ◽  
Shikha Varma ◽  
Peter A. Dowben
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Conformational Changes ◽  
Photoelectron Spectroscopy ◽  
X Ray ◽  
Surface Sensitivity ◽  
Metal Interaction ◽  
The Status ◽  
Sensitivity And Selectivity ◽  
Insight Into

Abstract X-ray Photoelectron Spectroscopy (XPS) has been used to study the interactions of heavy metal ions with DNA with some success. Surface sensitivity and selectivity of XPS are advantageous for identifying and characterizing the chemical and elemental structure of the DNA to metal interaction. This review summarizes the status of what amounts to a large part of the photoemission investigations of biomolecule interactions with metals and offers insight into the mechanism for heavy metal-bio interface interactions. Specifically, it is seen that metal interaction with DNA results in conformational changes in the DNA structure.

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