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The paper has been withdrawn do to double publication.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)

scholarly journals Hg2+ Optical Fiber Sensor Based on LSPR Generated by Gold Nanoparticles Embedded in LBL Nano-Assembled Coatings

Sensors ◽  
2019 ◽  
Vol 19 (22) ◽  
pp. 4906 ◽  
Author(s):  
María Elena Martínez-Hernández ◽  
Javier Goicoechea ◽  
Francisco J. Arregui
Keyword(s):  
Gold Nanoparticles ◽  
Optical Fiber Sensor ◽  
The Body ◽  
Fiber Optic Sensor ◽  
Localized Surface Plasmon ◽  
Layer By Layer ◽  
Localized Surface Plasmon Resonances ◽  
Highly Sensitive ◽  
Assembly Technique

Mercury is an important contaminant since it is accumulated in the body of living beings, and very small concentrations are very dangerous in the long term. This paper reports the fabrication of a highly sensitive fiber optic sensor using the layer-by-layer nano-assembly technique with gold nanoparticles (AuNPs). The gold nanoparticles were obtained via a water-based synthesis route that use poly acrylic acid (PAA) as stabilizing agent, in the presence of a borane dimethylamine complex (DMAB) as reducing agent, giving PAA-capped AuNPs. The sensing mechanism is based on the alteration of the Localized Surface Plasmon Resonances (LSPR) generated by AuNPs thanks to the strong chemical affinity of metallic mercury towards gold, which lead to amalgam alloys.

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

scholarly journals Optimization of the Electrodeposition of Gold Nanoparticles for the Application of Highly Sensitive, Label-Free Biosensor

Biosensors ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 50 ◽  
Author(s):  
Hao-Chun Chiang ◽  
Yanyan Wang ◽  
Qi Zhang ◽  
Kalle Levon
Keyword(s):  
Gold Nanoparticles ◽  
Signal Amplification ◽  
Electrochemical Biosensor ◽  
Aqueous Electrolyte ◽  
Label Free ◽  
Reduction Step ◽  
Glucose Biosensors ◽  
Highly Sensitive ◽  
Amperometric Glucose Biosensors ◽  
Aunp Surface

A highly sensitive electrochemical biosensor with a signal amplification platform of electrodeposited gold nanoparticle (AuNP) has been developed and characterized. The sizes of the synthesized AuNP were found to be critical for the performance of biosensor in which the sizes were dependent on HAuCl4 and acid concentrations; as well as on scan cycles and scan rates in the gold electro-reduction step. Systematic investigations of the adsorption of proteins with different sizes from aqueous electrolyte solution onto the electrodeposited AuNP surface were performed with a potentiometric method and calibrated by design of experiment (DOE). The resulting amperometric glucose biosensors was demonstrated to have a low detection limit (> 50 μM) and a wide linear range after optimization with AuNP electrodeposition.

Enhanced reverse saturable absorption of electrostatic self-assembled layer by layer films containing (8-quinolineoxy-5-sulfonic acid)phthalocyanine cobalt and graphene oxide

RSC Advances ◽  
2015 ◽  
Vol 5 (68) ◽  
pp. 55150-55157 ◽  
Author(s):  
Bowen Chen ◽  
Chunying He ◽  
Weina Song ◽  
Cheng Zhao ◽  
Yachen Gao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Sulfonic Acid ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Layer By Layer ◽  
Input Intensity ◽  
Self Assembled ◽  
Self Assembled Layer

The 25-bilayer CoPc/GO film was fabricated through electrostatic self-assembled layer by layer (LBL) technique, and it exhibits strong reverse saturable absorption (RSA) effect with the input intensity of 1.16 μJ.

Sign in / Sign up

Export Citation Format

Share Document