scholarly journals Gas Sensing Technique by using Molecular Adsorption on Micro Cantilever Surface

2012 ◽  
Vol 55 (8) ◽  
pp. 383-388
Author(s):  
Akiko N. ITAKURA
Keyword(s):  
Gas Sensing ◽  
Molecular Adsorption ◽  
Cantilever Surface ◽  
Micro Cantilever

scholarly journals Surface Modification Enabling Reproducible Cantilever Functionalization for Industrial Gas Sensors

Sensors ◽  
2021 ◽  
Vol 21 (18) ◽  
pp. 6041
Author(s):  
Daniel Mamou ◽  
Lawrence Nsubuga ◽  
Tatiana Lisboa Marcondes ◽  
Simon Overgaard Høegh ◽  
Jeanette Hvam ◽  
...  
Keyword(s):  
Surface Energy ◽  
Surface Properties ◽  
Gas Sensing ◽  
Industrial Applications ◽  
Cantilever Sensors ◽  
Target Capture ◽  
Functionalized Surfaces ◽  
Cantilever Surface ◽  
Target Binding ◽  
Micro Cantilever

Micro-cantilever sensors are a known reliable tool for gas sensing in industrial applications. We have demonstrated the application of cantilever sensors on the detection of a meat freshness volatile biomarker (cadaverine), for determination of meat and fish precise expiration dates. For achieving correct target selectivity, the cantilevers need to be functionalized with a cadaverine-selective binder, based on a cyclam-derivative. Cantilever surface properties such as surface energy strongly influence the binder morphology and material clustering and, therefore, target binding. In this paper, we explore how chemical and physical surface treatments influence cantilever surface, binder morphology/clustering and binding capabilities. Sensor measurements with non-controlled surface properties are presented, followed by investigations on the binder morphology versus surface energy and cadaverine capture. We demonstrated a method for hindering binder crystallization on functionalized surfaces, leading to reproducible target capture. The results show that cantilever surface treatment is a promising method for achieving a high degree of functionalization reproducibility for industrial cantilever sensors, by controlling binder morphology and uniformity.

50 nm thick AlN resonant micro-cantilever for gas sensing application

2010 ◽  
Author(s):  
P. Ivaldi ◽  
J. Abergel ◽  
G. Arndt ◽  
P. Robert ◽  
P. Andreucci ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Sensing Application ◽  
Micro Cantilever

Asymmetric immobilization of antibodies on a piezo-resistive micro-cantilever surface

RSC Advances ◽  
2016 ◽  
Vol 6 (21) ◽  
pp. 17606-17616 ◽  
Author(s):  
Dilip Kumar Agarwal ◽  
Nidhi Maheshwari ◽  
Soumyo Mukherji ◽  
V. Ramgopal Rao
Keyword(s):  
Chemical Modification ◽  
Mems Sensors ◽  
Cantilever Surface ◽  
Selective Chemical ◽  
Micro Cantilever ◽  
Biological Analytes

For cantilever-based MEMS sensors, selective chemical modification of the sensing surface is used for the detection of chemical and biological analytes.

scholarly journals Integrated MEMS/NEMS Resonant Cantilevers for Ultrasensitive Biological Detection

2009 ◽  
Vol 2009 ◽  
pp. 1-10 ◽  
Author(s):  
Xinxin Li ◽  
Haitao Yu ◽  
Xiaohua Gan ◽  
Xiaoyuan Xia ◽  
Pengcheng Xu ◽  
...  
Keyword(s):  
Great Promise ◽  
Self Assembled Monolayer ◽  
Trace Level ◽  
Microcantilever Sensors ◽  
Cantilever Sensors ◽  
Chinese Academy Of Sciences ◽  
Cantilever Surface ◽  
Volume Production ◽  
Micro Cantilever ◽  
Academy Of Sciences

The paper reviews the recent researches implemented in Chinese Academy of Sciences, with achievements on integrated resonant microcantilever sensors. In the resonant cantilevers, the self-sensing elements and resonance exciting elements are both top-down integrated with silicon micromachining techniques. Quite a lot of effort is focused on optimization of the resonance mode and sensing structure for improvement of sensitivity. On the other hand, to enable the micro-cantilevers specifically sensitive to bio/chemical molecules, sensing materials are developed and modified on the cantilever surface with a self-assembled monolayer (SAM) based bottom-up construction and surface functionalization. To improve the selectivity of the sensors and depress environmental noise, multiple and localized surface modifications are developed. The achieved volume production capability and satisfactory detecting resolution to trace-level biological antigen of alpha-fetoprotein (AFP) give the micro-cantilever sensors a great promise for rapid and high-resoluble detection.

scholarly journals Micro structure of hydrothermal ZnO rods on micro cantilever surface

2019 ◽  
Vol 1170 ◽  
pp. 012004
Author(s):  
A S Budi ◽  
M Y Frestika ◽  
D Mulyati ◽  
R Nurjadi
Keyword(s):  
Micro Structure ◽  
Cantilever Surface ◽  
Micro Cantilever ◽  
Zno Rods

Miniaturized langasite MEMS micro-cantilever beam structured resonator for high temperature gas sensing

2020 ◽  
Vol 29 (5) ◽  
pp. 055002
Author(s):  
Chen Zhang ◽  
Wei Jiang ◽  
Abhishek Ghosh ◽  
Guoan Wang ◽  
Felix Wu ◽  
...  
Keyword(s):  
High Temperature ◽  
Cantilever Beam ◽  
Gas Sensing ◽  
Micro Cantilever ◽  
High Temperature Gas

Fundamental Study of the Micro-Cantilever for more Sensitive Surface Stress-Based Biosensor

2013 ◽  
Vol 562-565 ◽  
pp. 334-338 ◽  
Author(s):  
Hui Feng ◽  
Sheng Bo Sang ◽  
Wen Dong Zhang ◽  
Gang Li ◽  
Peng Wei Li ◽  
...  
Keyword(s):  
Surface Stress ◽  
Label Free ◽  
Fe Method ◽  
Fundamental Study ◽  
Free System ◽  
Cantilever Surface ◽  
Sensitive Sensor ◽  
Optimal Material ◽  
Micro Cantilever ◽  
Crucial Part

Surface stress-based biosensors as a crucial part of micro-scale and label-free system, use free energy change, the underlying concept in any binding reaction, have been investigated extensively in recent years. In this paper, a new bi-micro-cantilever surface stress biosensor is proposed which can be used to detect cells. Some fundamental study has been done, especially for the micro-cantilever due to its crucial role in the whole system. To acquiring the optimal material for more sensitive sensor, four material, Si, SiN, AlN, PMMA(polymethylmethacrylate), were contrastively analyzed under the same conditions (loads, size, environmental factor. etc) by finite element (FE) method. This study could provide some foundation for the biosensor design and fabrication.

Schottky diodes based on 2D materials for environmental gas monitoring: a review on emerging trends, recent developments and future perspectives

2021 ◽  
Author(s):  
Minu Mathew ◽  
Chandra Sekhar Rout
Keyword(s):  
Gas Sensing ◽  
2D Materials ◽  
Schottky Diodes ◽  
High Sensitivity ◽  
Future Perspectives ◽  
Working Temperature ◽  
Emerging Trends ◽  
Gas Sensing Properties ◽  
Recent Developments ◽  
Sensitivity And Selectivity

This review details the fundamentals, working principles and recent developments of Schottky junctions based on 2D materials to emphasize their improved gas sensing properties including low working temperature, high sensitivity, and selectivity.

Gas-sensing materials by cooperative assembly

2020 ◽  
Author(s):  
Carina Esteves ◽  
Susana Palma ◽  
Ana Rita Oliveira ◽  
Efthymia Ramou ◽  
Inês Moreira ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Cooperative Assembly
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