Analyte-triggered citrate-stabilized Au nanoparticle aggregation with accelerated peroxidase-mimicking activity for catalysis-based colorimetric sensing of arsenite

2021 ◽  
Vol 334 ◽  
pp. 129650
Author(s):  
Qiangsheng Xue ◽  
Xiangheng Niu ◽  
Peng Liu ◽  
Mengzhu Wang ◽  
Yinxian Peng ◽  
...  
Keyword(s):  
Au Nanoparticle ◽  
Colorimetric Sensing ◽  
Nanoparticle Aggregation

How Nanoparticles Coalesce: An in Situ Study of Au Nanoparticle Aggregation and Grain Growth

2011 ◽  
Vol 23 (14) ◽  
pp. 3312-3317 ◽  
Author(s):  
Bridget Ingham ◽  
Teck H. Lim ◽  
Christian J. Dotzler ◽  
Anna Henning ◽  
Michael F. Toney ◽  
...  
Keyword(s):  
Grain Growth ◽  
Au Nanoparticle ◽  
Nanoparticle Aggregation ◽  
In Situ Study

Gold nanoparticle aggregation enables colorimetric sensing assays for enzymatic decarboxylation

2017 ◽  
Vol 9 (19) ◽  
pp. 2784-2787 ◽  
Author(s):  
Mohamed Nilam ◽  
Andreas Hennig ◽  
Werner M. Nau ◽  
Khaleel I. Assaf
Keyword(s):  
Gold Nanoparticle ◽  
Fundamental Importance ◽  
Colorimetric Sensing ◽  
Nanoparticle Aggregation ◽  
Biological Phenomena ◽  
Gold Nanoparticle Aggregation ◽  
Enzymatic Decarboxylation

Monitoring enzymatic processes is of fundamental importance for the understanding of the associated biological phenomena.

Role of Au nanoparticle aggregation in laser induced anisotropy of ITO transparent substrates

2014 ◽  
Vol 585 ◽  
pp. 393-397 ◽  
Author(s):  
I.V. Kityk ◽  
J. Ebothe ◽  
N-B. Bercu ◽  
Md. Abdul Aziz ◽  
Munetaka Oyama
Keyword(s):  
Au Nanoparticle ◽  
Induced Anisotropy ◽  
Nanoparticle Aggregation

DNA base-stacking assay utilizing catalytic hairpin assembly-induced gold nanoparticle aggregation for colorimetric protein sensing

2016 ◽  
Vol 52 (22) ◽  
pp. 4167-4170 ◽  
Author(s):  
Chia-Chen Chang ◽  
Chie-Pein Chen ◽  
Chen-Yu Chen ◽  
Chii-Wann Lin
Keyword(s):  
Gold Nanoparticle ◽  
Label Free ◽  
Colorimetric Sensing ◽  
Base Stacking ◽  
Nanoparticle Aggregation ◽  
Protein Sensing ◽  
Sensing Platform ◽  
Dna Base ◽  
Gold Nanoparticle Aggregation ◽  
Catalytic Hairpin Assembly

A label-free and enzyme-free colorimetric sensing platform for the amplified detection of fibronectin was developed based on an ingenious combination of catalytic hairpin assembly and a base stacking hybridization-based gold nanoparticle aggregation strategy.

Inhibiting Au nanoparticle aggregation in freeze-thawing by presence of various additives

2021 ◽  
Author(s):  
Miki Kadowaki ◽  
Hidetaka Yokota ◽  
Hiroyuki Imanaka ◽  
Naoyuki Ishida ◽  
Koreyoshi Imamura
Keyword(s):  
Au Nanoparticle ◽  
Nanoparticle Aggregation

Colorimetric Sensing of Adenosine Based on Aptamer Binding Inducing Gold Nanoparticle Aggregation

2009 ◽  
Vol 27 (10) ◽  
pp. 1855-1859 ◽  
Author(s):  
Xueping Liu ◽  
Zhenhua Zhou ◽  
Liangliang Zhang ◽  
Zhongyang Tan ◽  
Guoli Shen ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Colorimetric Sensing ◽  
Nanoparticle Aggregation ◽  
Gold Nanoparticle Aggregation

Visible colorimetric sensing of cysteine based on Au nanoparticle modified ZIF-67

2019 ◽  
Vol 74 (6) ◽  
pp. 1839-1847
Author(s):  
Li Liu ◽  
Yan-jun Hao ◽  
Zhen Li ◽  
Cheng Chen ◽  
Ming-yu Wu ◽  
...  
Keyword(s):  
Au Nanoparticle ◽  
Colorimetric Sensing

A Dual Sensor for Biogenic Amines and Oxygen Based on Genipin Immobilized in Edible Calcium Alginate Gel Beads

2020 ◽  
Author(s):  
Ian Mallov ◽  
Fiona Jeeva ◽  
Chris Caputo
Keyword(s):  
Biogenic Amines ◽  
Calcium Alginate ◽  
Alginate Beads ◽  
Colorimetric Sensing ◽  
Naturally Occurring ◽  
Gel Beads ◽  
Dual Sensor ◽  
Calcium Alginate Gel ◽  
Toxic Food

Food is often wasted due to real or perceived concerns about preservation and shelf life. Thus, precise, accurate and consumer-friendly methods of indicating whether food is safe for consumers are drawing great interest. The colorimetric sensing of biogenic amines released as food degrades is a potential way of determining the quality of the food. Herein, we report the use of genipin, a naturally occurring iridoid, as a dual colorimetric sensor for both oxygen and biogenic amines. Immobilization of genipin in edible calcium alginate beads demonstrates that it is a capable sensor for amine vapors and can be immobilized in a non-toxic, food-friendly matrix.

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