Highly sensitive regenerable immunosensor for label-free detection of 2,4-dichlorophenoxyacetic acid at ppb levels by using surface plasmon resonance imaging

2005 ◽  
Vol 111-112 ◽  
pp. 562-571 ◽  
Author(s):  
K. Vengatajalabathy Gobi ◽  
Hiroyuki Tanaka ◽  
Yukihiro Shoyama ◽  
Norio Miura
2015 ◽  
Vol 51 (4) ◽  
pp. 718-721 ◽  
Author(s):  
Zijian Zhao ◽  
Ling Zhu ◽  
Xiangli Bu ◽  
Huailei Ma ◽  
Shu Yang ◽  
...  

Surface plasmon resonance imaging in combination with the ADP3 peptoid was used to identify Alzheimer’s disease through detecting amyloid-beta42 in the serum.


The Analyst ◽  
2020 ◽  
Vol 145 (6) ◽  
pp. 2133-2142 ◽  
Author(s):  
Srijit Nair ◽  
Juan Gomez-Cruz ◽  
Ángel Manjarrez-Hernandez ◽  
Gabriel Ascanio ◽  
Ribal Georges Sabat ◽  
...  

The unique plasmonic energy exchange occurring within metallic crossed surface relief gratings (CSRGs) enables Surface Plasmon Resonance Imaging for the label-free detection of whole uropathogenic bacteria.


2008 ◽  
Vol 01 (01) ◽  
pp. 107-114 ◽  
Author(s):  
SHUKUAN XU ◽  
GUOLIANG HUANG ◽  
CHENG DENG ◽  
JIANG ZHU ◽  
CHAO HAN ◽  
...  

A surface plasmon resonance imaging (SPRI) system was developed for the discrimination of proteins on a gold surface. As a label-free and high-throughput technique, SPRI enables simultaneously monitoring of the biomolecular interactions at low concentrations. We used SPRI as a label-free and parallel method to detect different proteins based on protein microarray. Bovine Serum Albumin (BSA), Casein and Immunoglobulin G (IgG) were immobilized onto the Au surface of a gold-coated glass chip as spots forming a 6 × 6 matrix. These proteins can be discriminated directly by changing the incident angle of light. Excellent reproducibility for label-free detection of protein molecules was achieved. This SPRI platform represents a simple and robust method for performing high-sensitivity detection of protein microarray.


BioTechniques ◽  
2021 ◽  
Author(s):  
Michal Lesnak ◽  
Dominik Jursa ◽  
Marek Miskay ◽  
Helena Riedlova ◽  
Karla Barcova ◽  
...  

Surface plasmon resonance imaging biosensors have a number of advantages that make them superior to other analytical methods. These include the possibility of label-free detection, speed and high sensitivity to low protein concentrations. The aim of this study was to create and analyze biochips, with the help of which it is possible to test cystatin C in patient urine samples and compare the results with the one-time traditional ELISA method. The main advantage of the surface plasmon resonance imaging method is the possibility of repeated measurements over a long period of time in accordance with clinical practice. The surface of the biochip was spotted with anticystatin C and a negative control of mouse IgG at a ratio of 1:1. The aforementioned biochip was first verified using standard tests and then with patient samples, which clearly confirmed the required sensitivity even for very low concentrations of cystatin C.


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