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

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...

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

Materials Design of Sensing Layers for Detection of Volatile Analytes

2012 ◽  
pp. 183-198
Author(s):  
Mutsumi Kimura ◽  
Tadashi Fukawa ◽  
Tsuyoshi Ikehara ◽  
Takashi Mihara
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Chemical Sensors ◽  
Recent Progress ◽  
Materials Design ◽  
Highly Sensitive ◽  
Volatile Organic ◽  
Sensitivity And Selectivity

The authors developed highly sensitive sensing layers for detection of Volatile Organic Compounds (VOCs) by using polymeric nanomaterials. In this chapter, they describe their recent progress on the design of polymeric sensing layers for the chemical sensors. The nanostructures of polymeric sensing layer strongly influenced the sensitivity and selectivity for VOCs sensings.

A Colorimetric and “Turn-On” Fluorescent Chemosensor for Metal Ion Based on Rhodamine Derivative

2014 ◽  
Vol 955-959 ◽  
pp. 267-270
Author(s):  
Hao Zhang ◽  
Xi Jiang
Keyword(s):  
Schiff Base ◽  
High Throughput ◽  
Chemical Sensors ◽  
High Throughput Screening ◽  
Metal Ion ◽  
Important Species ◽  
Rhodamine Derivative ◽  
Turn On ◽  
Highly Sensitive ◽  
Rhodamine Derivatives

The recognition and sensing of biologically and environmentally important species has emerged as a significant goal in the field of chemical sensors in recent years1. Fluorogenic methods in conjunction with suitable probes are preferable approaches for the measurement of these analytes because fluorimetry is rapidly performed, is nondestructive, is highly sensitive, is suitable for high-throughput screening applications2,3. We synthesized rhodamine derivatives compounds by a Schiff base reaction.

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.

Precisely Controlled Ultrathin Conjugated Polymer Films for Large Area Transparent Transistors and Highly Sensitive Chemical Sensors

2016 ◽  
Vol 28 (14) ◽  
pp. 2752-2759 ◽  
Author(s):  
Dongyoon Khim ◽  
Gi-Seong Ryu ◽  
Won-Tae Park ◽  
Hyunchul Kim ◽  
Myungwon Lee ◽  
...  
Keyword(s):  
Polymer Films ◽  
Chemical Sensors ◽  
Conjugated Polymer ◽  
Large Area ◽  
Highly Sensitive

scholarly journals A Perspective on Recent Advances in Piezoelectric Chemical Sensors for Environmental Monitoring and Foodstuffs Analysis

Chemosensors ◽  
2019 ◽  
Vol 7 (3) ◽  
pp. 39 ◽  
Author(s):  
Kuchmenko ◽  
Lvova
Keyword(s):  
Chemical Sensors ◽  
Metal Ion ◽  
Sample Pretreatment ◽  
Cost Effective ◽  
Bulk Acoustic Wave ◽  
Multisensor Systems ◽  
Highly Sensitive ◽  
Wide Range ◽  
Wastewater Samples

This paper provides a selection of the last two decades publications on the development and application of chemical sensors based on piezoelectric quartz resonators for a wide range of analytical tasks. Most of the attention is devoted to an analysis of gas and liquid media and to industrial processes controls utilizing single quartz crystal microbalance (QCM) sensors, bulk acoustic wave (BAW) sensors, and their arrays in e-nose systems. The unique opportunity to estimate several heavy metals in natural and wastewater samples from the output of a QCM sensor array highly sensitive to changes in metal ion activity in water vapor is shown. The high potential of QCM multisensor systems for fast and cost-effective water contamination assessments “in situ” without sample pretreatment is demonstrated.

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