Label-free determination of protein–surface interaction kinetics by ionic conductance inside a nanochannel

Lab on a Chip ◽  
2009 ◽  
Vol 9 (2) ◽  
pp. 319-324 ◽  
Author(s):  
Nicolas F. Y. Durand ◽  
Philippe Renaud
2009 ◽  
Vol 96 (3) ◽  
pp. 405a-406a ◽  
Author(s):  
Pradip K. Biswas ◽  
Chris O. O'Brien ◽  
Steve J. Stuart ◽  
Robert A. Latour ◽  
Bernard R. Brooks

2013 ◽  
Vol 85 (19) ◽  
pp. 8996-9002 ◽  
Author(s):  
Stanislav O. Konorov ◽  
H. Georg Schulze ◽  
James M. Piret ◽  
Michael W. Blades ◽  
Robin F. B. Turner

2009 ◽  
Vol 1 (6) ◽  
pp. 497-504 ◽  
Author(s):  
Claire Dalmay ◽  
Arnaud Pothier ◽  
Mathilde Cheray ◽  
Fabrice Lalloue ◽  
Marie-Odile Jauberteau ◽  
...  

This paper presents an original biosensor chip allowing determination of intrinsic relative permittivity of biological cells at microwave frequencies. This sensor permits non-invasive cell identification and discrimination using an RF signal to probe intracellular medium of biological samples. Indeed, these sensors use an RF planar resonator that allows detection capabilities on less than 10 cells, thanks to the microscopic size of its sensitive area. Especially, measurements between 15 and 35 GHz show the ability label-free biosensors to differentiate two human cell types using their own electromagnetic characteristics. The real part of permittivity of cells changes from 20 to 48 for the nervous system cell types studied. The proposed biodetection method is detailed and we show how the accuracy and the repeatability of measurements have been improved to reach reproducible measurements.


2014 ◽  
Vol 47 (10) ◽  
pp. 1726-1736 ◽  
Author(s):  
Bin Zheng ◽  
Sheng Cheng ◽  
Huaze Dong ◽  
Haojun Liang ◽  
Jian Liu ◽  
...  

2014 ◽  
Vol 6 (17) ◽  
pp. 6796 ◽  
Author(s):  
Jing-Jing Zhang ◽  
Jun-Tao Cao ◽  
Gui-Fang Shi ◽  
Ke-Jing Huang ◽  
Yan-Ming Liu ◽  
...  

2022 ◽  
Vol 23 (2) ◽  
pp. 666
Author(s):  
Maryia Drobysh ◽  
Almira Ramanaviciene ◽  
Roman Viter ◽  
Chien-Fu Chen ◽  
Urte Samukaite-Bubniene ◽  
...  

Monitoring and tracking infection is required in order to reduce the spread of the coronavirus disease 2019 (COVID-19), induced by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). To achieve this goal, the development and deployment of quick, accurate, and sensitive diagnostic methods are necessary. The determination of the SARS-CoV-2 virus is performed by biosensing devices, which vary according to detection methods and the biomarkers which are inducing/providing an analytical signal. RNA hybridisation, antigen-antibody affinity interaction, and a variety of other biological reactions are commonly used to generate analytical signals that can be precisely detected using electrochemical, electrochemiluminescence, optical, and other methodologies and transducers. Electrochemical biosensors, in particular, correspond to the current trend of bioanalytical process acceleration and simplification. Immunosensors are based on the determination of antigen-antibody interaction, which on some occasions can be determined in a label-free mode with sufficient sensitivity.


2021 ◽  
Vol 33 (9) ◽  
pp. 3233
Author(s):  
Haiyun Wu ◽  
Taro Sakurai ◽  
Yusuke Saito ◽  
Goro Yoshizaki ◽  
Yasutoshi Yoshiura ◽  
...  

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