scholarly journals Au-NPs Signal Amplification Ultra-Sensitivity Optical Microfiber Interferometric Biosensor

2021 ◽  
Author(s):  
Hanglin Lu ◽  
Runjia Liu ◽  
Peiyuan Liu ◽  
Wenfu Lin ◽  
Yan Huang ◽  
...  
Keyword(s):  
Signal Amplification ◽  
Au Nps ◽  
Optical Microfiber ◽  
Interferometric Biosensor

scholarly journals Observation of Single Nanoparticle Collisions with Green Synthesized Pt, Au, and Ag Nanoparticles Using Electrocatalytic Signal Amplification Method

Nanomaterials ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1695
Author(s):  
Sundar ◽  
Kim ◽  
Kwon
Keyword(s):  
Signal Amplification ◽  
Au Nanoparticles ◽  
Current Response ◽  
Ag Nps ◽  
Fruit Extract ◽  
Au Nps ◽  
Amplification Method ◽  
Single Nanoparticle ◽  
Tailored Design

This work describes the tailored design, green synthesis and characterization of noble metal (Pt, Ag and Au) nanoparticles (NPs) using Sapinduss Mukkorossi fruit extract (SMFE) and its signal NP collision signal response, based on the principle of the electrocatatlytic amplication (EA) method. Here, the SMFE can act as both the reducing and the capping agent for the fabrication of noble nanometals. The SMFE-capped NPs was available for the observation of a single NP collision signal. Two general types of current response were observed: a staircase current response for the Pt or Au NPs, and a blip/spike current response for Ag NPs. These results demonstrated that the eco-friendly synthesized SMFE-capped NPs maintained their electrocatalytic activity, therefore they can be used for the single NP experiments and place an arena for future biosensing applications.

Engineering WS2-Au-HRP assisted-multiple signal amplification strategy for chemiluminescence immunoassay of prostate specific antigen

2021 ◽  
Author(s):  
Juntao Cao ◽  
Li-Zhen Zhao ◽  
Wen-Sheng Zhang ◽  
Shu-Hui Ma ◽  
Yan-Ming Liu
Keyword(s):  
Gold Nanoparticles ◽  
Horseradish Peroxidase ◽  
Prostate Specific Antigen ◽  
Signal Amplification ◽  
Specific Antigen ◽  
Tungsten Disulfide ◽  
Chemiluminescence Immunoassay ◽  
Au Nps ◽  
Multiple Signal ◽  
Amplification Strategy

A novel chemiluminescence (CL) immunosensor using functionalized Tungsten disulfide nanosheets (WS2 NSs)-gold nanoparticles (Au NPs)-horseradish peroxidase (WS2-Au-HRP) as multiple signal amplification probe was developed for prostate specific antigen (PSA) analysis....

Electrochemiluminescence Biosensor for Detection of Thrombin Using Enzyme-based Signal Amplification

2013 ◽  
Vol 40 (10) ◽  
pp. 1549-1554
Author(s):  
Hua-Yu ZHU ◽  
Li ZHANG ◽  
Huai-Cheng CHEN ◽  
Sheng-Juan YAN
Keyword(s):  
Signal Amplification
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