A protein detection technique by using surface plasmon resonance (SPR) with rolling circle amplification (RCA) and nanogold-modified tags

2007 ◽  
Vol 22 (6) ◽  
pp. 980-985 ◽  
Author(s):  
Yi-You Huang ◽  
Hsin-Yun Hsu ◽  
Chi-Jer Charles Huang
2014 ◽  
Vol 50 (12) ◽  
pp. 1481-1484 ◽  
Author(s):  
Peng He ◽  
Lijun Liu ◽  
Wenping Qiao ◽  
Shusheng Zhang

The SPR and QCM aptasensors combined with RCA, AuNP enhancement, and sandwich assay format have been applied to detect the human α-thrombin for the first time.


2014 ◽  
Vol 05 (03) ◽  
pp. 153-158 ◽  
Author(s):  
Hanen Chammem ◽  
Imen Hafaid ◽  
Olivier Meilhac ◽  
Farid Menaa ◽  
Laurence Mora ◽  
...  

Plasmonics ◽  
2012 ◽  
Vol 8 (2) ◽  
pp. 699-704 ◽  
Author(s):  
Maximilien Cottat ◽  
Néné Thioune ◽  
Ana-Maria Gabudean ◽  
Nathalie Lidgi-Guigui ◽  
Monica Focsan ◽  
...  

Nanomaterials ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 1019 ◽  
Author(s):  
Yun Liu ◽  
Ning Zhang ◽  
Ping Li ◽  
Li Yu ◽  
Shimeng Chen ◽  
...  

There are many potential applications for biosensors that can provide real-time analysis, such as environmental monitoring and disease prevention. In this study, we investigated a simple strategy for real-time protein detection, which had the advantages of affordability, fast response, portability, and ease of use. A robust quantification of protein interaction was achieved by combining capillary localized surface plasmon resonance (LSPR) sensors and complementary metal–oxide–semiconductor (CMOS) image sensors. Gold nanoparticles were modified on the inner wall of the capillary, which was used as a microfluidic channel and sensing surface. We functionalized one of the LSPR sensors using ligand bound to gold nanoparticle. Our proposed biosensing platform could be easily multiplexed to achieve high throughput screening of biomolecular interactions, and it has the potential for use in disposable sensors. Moreover, the sensing signal was enhanced by the extinction effect of gold nanoparticles. The experimental results showed that our device could achieve qualitative identification and quantitative measurement of transferrin and immunoglobulin G (IgG). As a field-portable and low-cost optical platform, the proposed LSPR biosensing device is broadly applicable to various protein binding tests via a similar self-assembly of organic ultrathin films.


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