scholarly journals Nanopod Formation through Gold Nanoparticle Templated and Catalyzed Cross-linking of Polymers Bearing Pendant Propargyl Ethers

2010 ◽  
Vol 132 (43) ◽  
pp. 15151-15153 ◽  
Author(s):  
Ke Zhang ◽  
Joshua I. Cutler ◽  
Jian Zhang ◽  
Dan Zheng ◽  
Evelyn Auyeung ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Cross Linking

Robust Gold Nanoparticle Sheets by Ligand Cross-Linking at the Air–Water Interface

ACS Nano ◽  
2017 ◽  
Vol 11 (2) ◽  
pp. 1292-1300 ◽  
Author(s):  
Irem Kosif ◽  
Katrina Kratz ◽  
Siheng Sean You ◽  
Mrinal K. Bera ◽  
Kyungil Kim ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Cross Linking ◽  
Water Interface ◽  
Air Water Interface

Colorimetric anticancer drug detection by gold nanoparticle-based DNA interstrand cross-linking

2013 ◽  
Vol 5 (5) ◽  
pp. 1116 ◽  
Author(s):  
Xiaoji Xie ◽  
Renren Deng ◽  
Feng Liu ◽  
Wei Xu ◽  
Sam Fong Yau Li ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Anticancer Drug ◽  
Cross Linking ◽  
Drug Detection

Oligopeptide Helical Conformations Control Gold Nanoparticle Cross‐Linking

2019 ◽  
Vol 25 (50) ◽  
pp. 11758-11764 ◽  
Author(s):  
Yanchao Lyu ◽  
Giulia Marafon ◽  
Álvaro Martínez ◽  
Alessandro Moretto ◽  
Paolo Scrimin
Keyword(s):  
Gold Nanoparticle ◽  
Cross Linking

Two-Photon Sensing of Dopamine by Using Au Nanoparticles

2015 ◽  
Vol 738-739 ◽  
pp. 31-37
Author(s):  
Cui Feng Jiang ◽  
Neng Yue Gao ◽  
Qi Sheng Wu ◽  
Yu Sun ◽  
Qing Hua Xu
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Detection Limit ◽  
Metal Ions ◽  
Gold Nanoparticle ◽  
Au Nanoparticles ◽  
Cross Linking ◽  
Au Nps ◽  
Two Photon ◽  
Catechol Group

In this paper, we demonstrated a gold nanoparticle based two-photon photoluminescence (TPPL) assay for the detection of dopamine with the detection limit of 0.3 μM. Protonated dopamine molecules can bind bidentately to surface of gold atoms through the catechol group. The adsorption of dopamine displaces the stabilizing agent of citrate groups, and neutralizes the charge of solution, resulting in non-cross linking aggregation of Au NPs. Aggregation of Au NPs could induce significantly enhanced TPPL. Thus, a simple TPPL assay was designed. We have shown that when Au NPs solution was mixed with dopamine, TPPL intensity increased by about 47 times. The mechanism of sensing assay has been discussed. In addition, the TPPL assay was highly selective to dopamine and it can distinguish from uric acid, ascorbic acid and metal ions.

scholarly journals Water-Based Assembly and Purification of Plasmon-Coupled Gold Nanoparticle Dimers and Trimers

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Sébastien Bidault ◽  
Albert Polman
Keyword(s):  
Gold Nanoparticle ◽  
Passivation Layer ◽  
Cross Linking ◽  
Purification Step ◽  
One Pot ◽  
Water Based ◽  
Efficient Coupling ◽  
Induced Aggregation ◽  
Plasmon Modes ◽  
Particle Plasmon

We describe a simple one-pot water-based scheme to produce gold nanoparticle groupings with short interparticle spacings. This approach combines a cross-linking molecule and a hydrophilic passivation layer to control the level of induced aggregation. Suspensions of dimers and trimers are readily obtained using a single electrophoretic purification step. The final interparticle spacings allow efficient coupling of the particle plasmon modes as verified in extinction spectroscopy.

Structural study on gold nanoparticle functionalized with DNA and its non-cross-linking aggregation

2012 ◽  
Vol 368 (1) ◽  
pp. 629-635 ◽  
Author(s):  
Masahiro Fujita ◽  
Yoshizumi Katafuchi ◽  
Kazuki Ito ◽  
Naoki Kanayama ◽  
Tohru Takarada ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Structural Study ◽  
Cross Linking

Highly sensitive and selective detection of trinitrotoluene using cysteine-capped gold nanoparticles

2016 ◽  
Vol 8 (22) ◽  
pp. 4398-4405 ◽  
Author(s):  
S. Devi ◽  
B. Singh ◽  
A. K. Paul ◽  
S. Tyagi
Keyword(s):  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Cross Linking ◽  
Selective Detection ◽  
Schematic Representation ◽  
Highly Sensitive

(A) A schematic representation of the formation of cysteine capped gold nanoparticles and their interaction at pH 5 and 9.3. (B) A schematic representation of the formation of a Meisenheimer complex between cysteine modified gold nanoparticles and TNT, and possible cross-linking between gold nanoparticles bound to the Meisenheimer complex with gold nanoparticle bound cysteine.

Synthesis and optical properties of gold nanoparticle networks cross-linked with chain-length-controlled polymers

RSC Advances ◽  
2015 ◽  
Vol 5 (44) ◽  
pp. 34704-34708 ◽  
Author(s):  
Emi Sugata ◽  
Seiya Kobatake
Keyword(s):  
Gold Nanoparticles ◽  
Optical Properties ◽  
Gold Nanoparticle ◽  
Chain Length ◽  
Cross Linking ◽  
Sh Groups

We synthesized gold nanoparticle networks by a cross-linking of gold nanoparticles with chain-length-controlled polymers having SH groups at both termini.

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