scholarly journals Selective colorimetric NO(g) detection based on the use of modified gold nanoparticles using click chemistry

2015 ◽  
Vol 51 (15) ◽  
pp. 3077-3079 ◽  
Author(s):  
Almudena Martí ◽  
Ana M. Costero ◽  
Pablo Gaviña ◽  
Margarita Parra
Keyword(s):  
Gold Nanoparticles ◽  
Click Chemistry ◽  
Click Reaction ◽  
Colorimetric Probe ◽  
Functionalized Gold Nanoparticles

A new colorimetric probe for the detection of NO(g) based on the use of functionalized gold nanoparticles is described. The sensing protocol is based on a click reaction catalized by Cu(i) which is generated in situ from the reduction of Cu(ii) by NO(g).

Visual detection of single-nucleotide polymorphisms and DNA methyltransferase based on cation-exchange of CuS nanoparticles and click chemistry of functionalized gold nanoparticles

2016 ◽  
Vol 52 (90) ◽  
pp. 13261-13264 ◽  
Author(s):  
X. R. Zhang ◽  
Y. Zhang ◽  
F. T. Chen ◽  
Y. Li ◽  
S. S. Zhang
Keyword(s):  
Gold Nanoparticles ◽  
Single Nucleotide Polymorphisms ◽  
Cation Exchange ◽  
Click Chemistry ◽  
Dna Methyltransferase ◽  
Visual Detection ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Functionalized Gold Nanoparticles

A novel biosensor was developed based on the cation-exchange of CuS nanoparticles (NPs) and Cu(i)-based click chemistry of functionalized gold nanoparticles (AuNPs).

Malonamide dithiocarbamate functionalized gold nanoparticles for colorimetric sensing of Cu2+ and Hg2+ ions

RSC Advances ◽  
2015 ◽  
Vol 5 (6) ◽  
pp. 4245-4255 ◽  
Author(s):  
Vaibhavkumar N. Mehta ◽  
Suresh Kumar Kailasa
Keyword(s):  
Gold Nanoparticles ◽  
Colorimetric Detection ◽  
Colorimetric Sensing ◽  
Au Nps ◽  
Colorimetric Probe ◽  
Functionalized Gold Nanoparticles

In this study, a colorimetric probe was developed based on malonamide dithiocarbamate functionalized gold nanoparticles (MA–DTC–Au NPs) for the simultaneous colorimetric detection of Cu2+ and Hg2+ ions.

Preparation of HA Hydrogel by Click Chemistry

2015 ◽  
Vol 1088 ◽  
pp. 286-289
Author(s):  
Yuan Cui ◽  
Jing Peng Zhang ◽  
Wei Zhang ◽  
Qian Duan
Keyword(s):  
Hyaluronic Acid ◽  
Click Chemistry ◽  
Molecular Design ◽  
Click Reaction ◽  
Side Chains ◽  
H Nmr ◽  
Hydrogel Formation

"Click chemistry" was used in this paper to get a novel hyaluronic acid (HA) hydrogel by modified HA molecules' side chains with azide and alkynyl groups to perform "Click" reaction. The HA hydrogel can be achieved "in situ" injection gel. The properties of the HA hydrogel can be controlled by controlling the amount of alkynyl and azide groups on side chains to achieve controllable HA hydrogel by HA molecular design. The reactant, product and hydrogel were characterized by 1H NMR, FTIR and morphology observation to determine the processes of reaction and can hydrogel formation.

Gold nanoparticles as a colorimetric probe for the determination of N-acetyl-l-cysteine in biological samples and pharmaceutical formulations

2015 ◽  
Vol 7 (4) ◽  
pp. 1478-1483 ◽  
Author(s):  
Saadat Rastegarzadeh ◽  
Fatemeh Hashemi
Keyword(s):  
Gold Nanoparticles ◽  
Ascorbic Acid ◽  
Biological Samples ◽  
Pharmaceutical Formulations ◽  
Reducing Agent ◽  
Spectrophotometric Detection ◽  
Colorimetric Probe

In this study, gold nanoparticles (AuNPs) have been synthesised using ascorbic acid as a reducing agent and employed in the design of an in situ colorimetric probe for the spectrophotometric detection of N-acetyl-l-cysteine (NAC).

A colorimetric probe for the detection of aluminum ions based on 11-mercaptoundecanoic acid functionalized gold nanoparticles

2016 ◽  
Vol 8 (39) ◽  
pp. 7232-7236 ◽  
Author(s):  
Ruiqi Zhu ◽  
Jinping Song ◽  
Qi Ma ◽  
Ying Zhou ◽  
Jun Yang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Colorimetric Method ◽  
Colorimetric Probe ◽  
Functionalized Gold Nanoparticles ◽  
Aluminum Ions

An easy, simple and selective colorimetric method for aluminum ions has been developed using 11-mercaptoundecanoic acid functionalized gold nanoparticles (MUA–AuNPs).

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