Analyte-concentrating 3D hybrid plasmonic nanostructures for use in highly sensitive chemical sensors

RSC Advances ◽  
2016 ◽  
Vol 6 (94) ◽  
pp. 92120-92126 ◽  
Author(s):  
MinKyoung Lee ◽  
ChaeWon Mun ◽  
Dong-Ho Kim ◽  
Seung-Cheol Chang ◽  
Sung-Gyu Park
Keyword(s):  
Chemical Sensors ◽  
Hybrid Nanostructures ◽  
Plasmonic Nanostructures ◽  
Highly Sensitive

This paper characterizes the analyte-concentrating effects of 3D porous Ag hybrid nanostructures to develop ultrasensitive SERS-based toxin sensors.

Highly sensitive and stable phenyl hydrazine chemical sensors based on CuO flower shapes and hollow spheres

2013 ◽  
Vol 37 (4) ◽  
pp. 1098 ◽  
Author(s):  
Sher Bahadar Khan ◽  
M. Faisal ◽  
Mohammed M. Rahman ◽  
I. A. Abdel-Latif ◽  
Adel A. Ismail ◽  
...  
Keyword(s):  
Chemical Sensors ◽  
Hollow Spheres ◽  
Phenyl Hydrazine ◽  
Highly Sensitive

Application progress of magnetic molecularly imprinted polymer chemical sensors in the detection of biomarkers

The Analyst ◽  
2022 ◽  
Author(s):  
Ying Wang ◽  
Xiaomin Yang ◽  
Lin Pang ◽  
Pengfei Geng ◽  
Fang Mi ◽  
...  
Keyword(s):  
Chemical Sensors ◽  
Molecularly Imprinted Polymers ◽  
Essential Role ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Magnetic Molecularly Imprinted Polymer ◽  
Magnetic Molecularly Imprinted Polymers ◽  
Highly Sensitive ◽  
Detection Of Biomarkers ◽  
Highly Sensitive Detection

Specific recognition and highly sensitive detection of biomarkers play an essential role in identifying, early diagnosis and prevention of many diseases. Magnetic molecularly imprinted polymers (MMIP) have been widely used...

scholarly journals Enhanced photocatalytic activity of Ag–ZnO hybrid plasmonic nanostructures prepared by a facile wet chemical method

2014 ◽  
Vol 5 ◽  
pp. 639-650 ◽  
Author(s):  
Sini Kuriakose ◽  
Vandana Choudhary ◽  
Biswarup Satpati ◽  
Satyabrata Mohapatra
Keyword(s):  
Electron Microscopy ◽  
Photocatalytic Activity ◽  
Chemical Method ◽  
Hybrid Nanostructures ◽  
Oriented Attachment ◽  
Plasmonic Nanostructures ◽  
Ag Nanoparticle ◽  
Wet Chemical Method ◽  
Citrate Concentration ◽  
Wet Chemical

We report the synthesis of Ag–ZnO hybrid plasmonic nanostructures with enhanced photocatalytic activity by a facile wet-chemical method. The structural, optical, plasmonic and photocatalytic properties of the Ag–ZnO hybrid nanostructures were studied by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), photoluminescence (PL) and UV–visible absorption spectroscopy. The effects of citrate concentration and Ag nanoparticle loading on the photocatalytic activity of Ag–ZnO hybrid nanostructures towards sun-light driven degradation of methylene blue (MB) have been investigated. Increase in citrate concentration has been found to result in the formation of nanodisk-like structures, due to citrate-assisted oriented attachment of ZnO nanoparticles. The decoration of ZnO nanostructures with Ag nanoparticles resulted in a significant enhancement of the photocatalytic degradation efficiency, which has been found to increase with the extent of Ag nanoparticle loading.

Challenges Facing Resonant MEMS Sensors

2010 ◽  
Vol 2010 (DPC) ◽  
pp. 001401-001425
Author(s):  
Michael Kranz
Keyword(s):  
Chemical Sensors ◽  
Sensitive Detector ◽  
Quality Factors ◽  
Mems Sensors ◽  
Low Loss ◽  
Rf Filters ◽  
Highly Sensitive ◽  
Differential Operation ◽  
Fabrication Tolerances ◽  
Poor Stability

Many MEMS/NEMS sensors, including gyroscopes, chemical sensors, and RF filters utilize the mechanical resonance of the MEMS/NEMS structure as a highly sensitive detector. Typically, changes in the external environment lead to changes in the resonant frequency or amplitude. Due to the low-loss of micro and nano mechanical structures, large quality factors are achievable, leading to sharp resonance curves that change greatly after only small changes in the environment. This allows sensitive detectors, but also leads to poor stability and tight fabrication tolerances. This paper will discuss these issues as well as mitigation techniques including feedback control, tuning, differential operation, and sensor fusion, amongst others.

Novel designs of SAW devices for highly sensitive chemical sensors

2018 ◽  
Vol 5 (7) ◽  
pp. 15371-15375
Author(s):  
Lokesh Rana ◽  
Reema Gupta ◽  
Anjali Sharma ◽  
Vinay Gupta ◽  
Monika Tomar
Keyword(s):  
Chemical Sensors ◽  
Saw Devices ◽  
Highly Sensitive

scholarly journals Highly Sensitive Bulk Silicon Chemical Sensors with Sub-5 nm Thin Charge Inversion Layers

ACS Nano ◽  
2018 ◽  
Vol 12 (3) ◽  
pp. 2948-2954 ◽  
Author(s):  
Hossain M. Fahad ◽  
Niharika Gupta ◽  
Rui Han ◽  
Sujay B. Desai ◽  
Ali Javey
Keyword(s):  
Chemical Sensors ◽  
Bulk Silicon ◽  
Charge Inversion ◽  
Highly Sensitive

Chemically Designed Metallic/Insulating Hybrid Nanostructures with Silver Nanocrystals for Highly Sensitive Wearable Pressure Sensors

2017 ◽  
Vol 10 (1) ◽  
pp. 1389-1398 ◽  
Author(s):  
Haneun Kim ◽  
Seung-Wook Lee ◽  
Hyungmok Joh ◽  
Mingi Seong ◽  
Woo Seok Lee ◽  
...  
Keyword(s):  
Pressure Sensors ◽  
Hybrid Nanostructures ◽  
Highly Sensitive
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