Surface-Enhanced Raman Spectroscopy of 2D Organic Semiconductor Crystals

2019 ◽  
Vol 123 (44) ◽  
pp. 27242-27250
Author(s):  
Dmitry R. Maslennikov ◽  
Andrey Yu. Sosorev ◽  
Roman S. Fedorenko ◽  
Yuriy N. Luponosov ◽  
Sergey A. Ponomarenko ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Organic Semiconductor ◽  
Surface Enhanced Raman Spectroscopy ◽  
Semiconductor Crystals ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Nanostructured organic semiconductor films for molecular detection with surface-enhanced Raman spectroscopy

2017 ◽  
Vol 16 (9) ◽  
pp. 918-924 ◽  
Author(s):  
Mehmet Yilmaz ◽  
Esra Babur ◽  
Mehmet Ozdemir ◽  
Rebecca L. Gieseking ◽  
Yavuz Dede ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Organic Semiconductor ◽  
Molecular Detection ◽  
Surface Enhanced Raman Spectroscopy ◽  
Semiconductor Films ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Bacterial detection and differentiation via direct volatile organic compound sensing with surface enhanced Raman spectroscopy

2017 ◽  
Author(s):  
Caitlin S. DeJong ◽  
David I. Wang ◽  
Aleksandr Polyakov ◽  
Anita Rogacs ◽  
Steven J. Simske ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Bacterial Infections ◽  
Direct Detection ◽  
Point Of Care ◽  
Surface Enhanced Raman Spectroscopy ◽  
E Coli ◽  
Recent Emergence ◽  
Surface Enhanced ◽  
Volatile Organic ◽  
Surface Enhanced Raman

Through the direct detection of bacterial volatile organic compounds (VOCs), via surface enhanced Raman spectroscopy (SERS), we report here a reconfigurable assay for the identification and monitoring of bacteria. We demonstrate differentiation between highly clinically relevant organisms: <i>Escherichia coli</i>, <i>Enterobacter cloacae</i>, and <i>Serratia marcescens</i>. This is the first differentiation of bacteria via SERS of bacterial VOC signatures. The assay also detected as few as 10 CFU/ml of <i>E. coli</i> in under 12 hrs, and detected <i>E. coli</i> from whole human blood and human urine in 16 hrs at clinically relevant concentrations of 10<sup>3</sup> CFU/ml and 10<sup>4</sup> CFU/ml, respectively. In addition, the recent emergence of portable Raman spectrometers uniquely allows SERS to bring VOC detection to point-of-care settings for diagnosing bacterial infections.

Sign in / Sign up

Export Citation Format

Share Document