Detection of Heavy Metal Ions Using Synthesized Amino Thiol Surfactants Assembled on Gold Nanoparticles

2014 ◽  
Vol 35 (2) ◽  
pp. 175-184 ◽  
Author(s):  
E. M. S. Azzam ◽  
A. F. M. El-Farargy ◽  
M. A. Hegazy ◽  
A. A. Abd El-Aal
Keyword(s):  
Heavy Metal ◽  
Gold Nanoparticles ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Amino Thiol

Detection of Trace Heavy Metal Ions by Anodic Stripping Voltammetry Using Gold Nanoparticles/L-Cysteine Composite

2016 ◽  
Vol 14 (9) ◽  
pp. 955-960 ◽  
Author(s):  
Khaoula Zinoubi ◽  
Yosra Braham ◽  
Houcine Barhoumi ◽  
Messaoud Benounis ◽  
Nicole Jaffrezic
Keyword(s):  
Heavy Metal ◽  
Gold Nanoparticles ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Anodic Stripping

Logical regulation of the enzyme-like activity of gold nanoparticles by using heavy metal ions

Nanoscale ◽  
2013 ◽  
Vol 5 (17) ◽  
pp. 8227 ◽  
Author(s):  
Chia-Wen Lien ◽  
Ying-Chieh Chen ◽  
Huan-Tsung Chang ◽  
Chih-Ching Huang
Keyword(s):  
Heavy Metal ◽  
Gold Nanoparticles ◽  
Metal Ions ◽  
Heavy Metal Ions

Analyte-triggered autocatalytic amplification combined with gold nanoparticle probes for colorimetric detection of heavy-metal ions

2017 ◽  
Vol 53 (54) ◽  
pp. 7477-7480 ◽  
Author(s):  
Juanhua Yang ◽  
Yun Zhang ◽  
Lang Zhang ◽  
Huili Wang ◽  
Jinfang Nie ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Gold Nanoparticles ◽  
Metal Ions ◽  
Gold Nanoparticle ◽  
Heavy Metal Ions ◽  
Colorimetric Detection ◽  
Detection Limits ◽  
Label Free ◽  
Nanoparticle Probes ◽  
Free Gold

This work reports a new nanosensor based on analyte-triggered autocatalytic amplification and label-free gold nanoparticles for the colorimetric detection of Hg2+, Cu2+and Ag+with detection limits less than 3 nM.

Functional gold nanoparticles for sensing applications

2013 ◽  
Vol 2 (3) ◽  
pp. 269-288 ◽  
Author(s):  
Guomei Zhang
Keyword(s):  
Heavy Metal ◽  
Gold Nanoparticles ◽  
Metal Ions ◽  
Surface Functionalization ◽  
Heavy Metal Ions ◽  
Catalytic Properties ◽  
Smart Sensors ◽  
Sensing Applications ◽  
New Generation ◽  
Functionalized Aunps

AbstractNanoparticle-based technologies have played important roles in providing opportunities for the development of a new generation of sensing tools. Because of their unique optical, chemical, electrical, and catalytic properties, gold nanoparticles (AuNPs) have been extensively studied for biological and chemical detections as well as analytical applications. AuNP-based sensors are expected to change the foundations of sensing and detecting biomolecules and metal ions. The ease of surface functionalization of AuNPs allows chemists to create the desired functionalities for specific applications. In this review, we will discuss the use of surface-functionalized AuNPs for fabricating smart sensors that are capable of detecting heavy metal ions, glucose, and specific biomolecules such as protein and DNA.

Colorimetric Detection of Heavy Metal Ions Using Label-Free Gold Nanoparticles and Alkanethiols

2010 ◽  
Vol 114 (39) ◽  
pp. 16329-16334 ◽  
Author(s):  
Yu-Lun Hung ◽  
Tung-Ming Hsiung ◽  
Yi-You Chen ◽  
Yu-Fen Huang ◽  
Chih-Ching Huang
Keyword(s):  
Heavy Metal ◽  
Gold Nanoparticles ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Colorimetric Detection ◽  
Label Free ◽  
Free Gold

scholarly journals Synthesis of Gold Nanoparticles to Capture Lifelike Proteins: Application on the Multichannel Sensor Array Design

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Yumin Leng ◽  
Chunhua Ma ◽  
Wentai Zhang ◽  
Kecheng Liu ◽  
Zhiwen Lu
Keyword(s):  
Heavy Metal ◽  
Gold Nanoparticles ◽  
Metal Ions ◽  
Metal Ion ◽  
Heavy Metal Ions ◽  
Chemical Elements ◽  
Protein Structures ◽  
Sensor Arrays ◽  
Label Free ◽  
Optical Responses

The chemical elements of proteins are similar to that of DNA (e.g., C, H, O, and N), and DNA shows different knotted architectures. So we imagine that proteins may show a wealth of highly complex structures, especially when proteins interact with each other. The imagination was proved by synthesizing gold nanoparticles (GNPs) to capture the lifelike protein structures. The optical responses (i.e., color) of as-prepared GNPs are found to be characteristic to a given protein (or heavy metal ion). Based on the “three colors” principle of Thomas Young, we extracted the red, green, and blue (RGB) alterations of as-synthesized GNPs to fabricate multichannel sensor arrays for proteins (or heavy metal ions) discrimination. The designed multichannel sensor arrays demonstrate possibilities in semiquantitative analysis of multiple analytes (e.g., proteins and heavy metal ions). This work is believed to open new opportunities for GNPs-based label-free sensing.

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