Label-free electrochemical aptasensor for sensitive thrombin detection using layer-by-layer self-assembled multilayers with toluidine blue–graphene composites and gold nanoparticles

Talanta ◽  
2012 ◽  
Vol 98 ◽  
pp. 7-13 ◽  
Author(s):  
Shunbi Xie ◽  
Ruo Yuan ◽  
Yaqin Chai ◽  
Lijuan Bai ◽  
Yali Yuan ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Toluidine Blue ◽  
Layer By Layer ◽  
Label Free ◽  
Electrochemical Aptasensor ◽  
Self Assembled

Characterization and application of self-assembled layer by layer gold nanoparticles for highly sensitive label-free capacitive immunosensing

2012 ◽  
Vol 80 ◽  
pp. 202-212 ◽  
Author(s):  
Saluma Samanman ◽  
Proespichaya Kanatharana ◽  
Punnee Asawatreratanakul ◽  
Panote Thavarungkul
Keyword(s):  
Gold Nanoparticles ◽  
Layer By Layer ◽  
Label Free ◽  
Highly Sensitive ◽  
Self Assembled ◽  
Self Assembled Layer

scholarly journals Disulfide-induced self-assembled targets: A novel strategy for the label free colorimetric detection of DNAs/RNAs via unmodified gold nanoparticles

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Ehsan Shokri ◽  
Morteza Hosseini ◽  
Mehdi D. Davari ◽  
Mohammad R. Ganjali ◽  
Maikel P. Peppelenbosch ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Colorimetric Detection ◽  
Label Free ◽  
Self Assembled ◽  
Novel Strategy

Layer-by-layer self-assembly of 2D graphene nanosheets, 3D copper oxide nanoflowers and 0D gold nanoparticles for ultrasensitive electrochemical detection of alpha fetoprotein

RSC Advances ◽  
2015 ◽  
Vol 5 (70) ◽  
pp. 56583-56589 ◽  
Author(s):  
Yulan Wang ◽  
Dan Wu ◽  
Yong Zhang ◽  
Xiang Ren ◽  
Yaoguang Wang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Copper Oxide ◽  
Electrochemical Detection ◽  
Self Assembly ◽  
Graphene Nanosheets ◽  
Electrochemical Immunosensor ◽  
Alpha Fetoprotein ◽  
Quantitative Detection ◽  
Layer By Layer ◽  
Label Free

In this work, a novel and ultrasensitive label-free electrochemical immunosensor was developed for the quantitative detection of alpha fetoprotein (AFP).

Self-assembled multilayer surfaces of highly fluorescent spirobifluorene-based dye for label-free protein recognition

2019 ◽  
Vol 7 (32) ◽  
pp. 4933-4939
Author(s):  
Friederike Schlüter ◽  
Bart Jan Ravoo ◽  
Fabio Rizzo
Keyword(s):  
Deposition Process ◽  
Protein Recognition ◽  
Layer By Layer ◽  
Label Free ◽  
Free Protein ◽  
Layer Deposition ◽  
Self Assembled ◽  
New Sensors

New sensors for the recognition of proteins on glass and quartz surfaces were developed in a straightforward layer-by-layer deposition process.

DNA Biosensors Based on Layer-by-Layer Self-Assembled Multilayer Films of Carbon Nanotubes and Gold Nanoparticles

2011 ◽  
Vol 298 ◽  
pp. 84-84 ◽  
Keyword(s):  
Carbon Nanotubes ◽  
Gold Nanoparticles ◽  
Multilayer Films ◽  
Layer By Layer ◽  
Dna Biosensors ◽  
Self Assembled ◽  
Double Publication

The paper has been withdrawn do to double publication. The original was published by SPIE Proceedings of SPIE, vol 7493, 74935A in 2009 (DOI:10.1117/12.840316)

Label-Free Pb(II) Whispering Gallery Mode Sensing Using Self-Assembled Glutathione-Modified Gold Nanoparticles on an Optical Microcavity

2014 ◽  
Vol 86 (13) ◽  
pp. 6299-6306 ◽  
Author(s):  
Sirirat Panich ◽  
Kerry A. Wilson ◽  
Philippa Nuttall ◽  
Christopher K. Wood ◽  
Tim Albrecht ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Whispering Gallery Mode ◽  
Label Free ◽  
Optical Microcavity ◽  
Whispering Gallery ◽  
Self Assembled

DNA biosensors based on layer-by-layer self-assembled multilayer films of carbon nanotubes and gold nanoparticles

2009 ◽  
Author(s):  
Yiyun Xiao ◽  
Zhao Dai ◽  
Jimei Zhang ◽  
Jiechun Pang ◽  
Shichao Xu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Gold Nanoparticles ◽  
Multilayer Films ◽  
Layer By Layer ◽  
Dna Biosensors ◽  
Self Assembled

Electrochemical Aptasensor for Label-Free Detection of Protein Based on Gold Nanoparticle Involved Self-Assembly

2013 ◽  
Vol 310 ◽  
pp. 177-182
Author(s):  
Song Bai Zhang ◽  
Bing Jun Zhang ◽  
Qian Liu ◽  
Xia Hu ◽  
Li Ying Zheng ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Self Assembly ◽  
Gold Electrode ◽  
Hot Water ◽  
Target Protein ◽  
Capture Probe ◽  
Label Free ◽  
Label Free Detection ◽  
Self Assembled

A label-free electrochemical biosensing strategy based on gold nanoparticle involved layer-by-layer self assembly for the detection of protein is proposed using platelet derived growth factor-BB dimer (PDGF-BB) as the model analyte. Utilizing the strong sulfur-Au affinity, ethanthiol and capture probe modified gold nanoparticles are self-assembled onto the surface of gold electrode successively. The aptamer probe for target protein hybridizes with the capture probe and the biosensor is fabricated. By measuring ac current voltammetry, the target protein can be sensitively detected in a linear dynamic range from 1-1000 ng/mL with a low detection limit of 0.5 ng/mL. Making use of self-assembled gold nanoparticles layer, a large amount of capture probes can be modified onto the gold electrode, supporting the high sensitivity of the proposed strategy. In addition, good reproducibility, high selectivity and stability are achieved. In particular, the biosensor can be easily regenerated by melting in hot water, making it reusable.

Gold nanoparticles/Orange II functionalized graphene nanohybrid based electrochemical aptasensor for label-free determination of insulin

RSC Advances ◽  
2016 ◽  
Vol 6 (36) ◽  
pp. 30732-30738 ◽  
Author(s):  
Tingting Li ◽  
Zhiguang Liu ◽  
Li Wang ◽  
Yujing Guo
Keyword(s):  
Gold Nanoparticles ◽  
Electrode Surface ◽  
Insulin Binding ◽  
Orange Ii ◽  
Functionalized Graphene ◽  
Label Free ◽  
Electrochemical Aptasensor

Nanocomposites, gold nanoparticles on Orange II functionalized graphene (AuNPs/O-GNs), were developed to modify the electrode surface for anchoring an insulin binding aptamer.

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