Ultrasensitive detection of phenolic antioxidants by surface enhanced Raman spectroscopy

2017 ◽  
Author(s):  
Nancy Ornelas-Soto ◽  
Iris A. Aguilar-Hernández ◽  
Nils Kristian Afseth ◽  
Tzarara López-Luke ◽  
Flavio Contreras-Torres ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Phenolic Antioxidants ◽  
Ultrasensitive Detection ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Nanostructured probes to enhance optical and vibrational spectroscopic imaging for biomedical applications

2017 ◽  
Author(s):  
Anil K. Kodali ◽  
Rohit Bhargava
Keyword(s):  
Raman Spectroscopy ◽  
Biomedical Applications ◽  
Spectroscopic Imaging ◽  
Surface Enhanced Raman Spectroscopy ◽  
Ultrasensitive Detection ◽  
Optical Resonances ◽  
Surface Enhanced ◽  
Different Types ◽  
Surface Enhanced Raman ◽  
Ir And Raman

This article describes the use of nanostructured probes to enhance optical and vibrational spectroscopic imaging for biomedical applications. Engineered probes and surfaces are promising tools for enhancing signals for ultrasensitive detection of diseases like carcinoma. Two methods of interest are surface-enhanced infrared absorption (SEIRA) spectroscopy and surface-enhanced Raman spectroscopy (SERS) for IR and Raman modalities, respectively. SERS and SEIRA can be broadly categorized under a common modality termed surface-enhanced vibrational spectroscopy. This article first reviews various breakthrough findings reported in SERS and SEIRA, along with different types ofsubstrates and contrast agents used in realizing the enhancement and theories proposed to explain these findings. It then considers the configurations of nano-LAMPs and presents example results demonstrating their optical resonances and tunability. Finally, it evaluates a few techniques for fabricating multilayered nanoparticles and highlights some issues with respect to fabrication.

Surface enhanced Raman spectroscopy of Aurora kinases: direct, ultrasensitive detection of autophosphorylation

RSC Advances ◽  
2013 ◽  
Vol 3 (13) ◽  
pp. 4221 ◽  
Author(s):  
Soumik Siddhanta ◽  
Dhanasekaran Karthigeyan ◽  
Partha P. Kundu ◽  
Tapas K. Kundu ◽  
Chandrabhas Narayana
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Ultrasensitive Detection ◽  
Aurora Kinases ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

ZnO–Ag hybrids for ultrasensitive detection of trinitrotoluene by surface-enhanced Raman spectroscopy

2014 ◽  
Vol 16 (28) ◽  
pp. 14706-14712 ◽  
Author(s):  
Xuan He ◽  
Hui Wang ◽  
Zhongbo Li ◽  
Dong Chen ◽  
Qi Zhang
Keyword(s):  
Raman Spectroscopy ◽  
Low Cost ◽  
High Sensitivity ◽  
Surface Enhanced Raman Spectroscopy ◽  
Ultrasensitive Detection ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Hybrid Substrates ◽  
Tnt Detection

Low-cost SERS sensors were fabricated by 4-ATP-functionalized ZnO–Ag hybrid substrates for TNT detection with high sensitivity, selectivity and reproducibility.

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