scholarly journals Rosmarinic Acid-Capped Silver Nanoparticles for Colorimetric Detection of CN– and Redox-Modulated Surface Reaction-Aided Detection of Cr(VI) in Water

ACS Omega ◽  
2022 ◽  
Author(s):  
Shreya Bhatt ◽  
Gaurav Vyas ◽  
Parimal Paul
Keyword(s):  
Silver Nanoparticles ◽  
Rosmarinic Acid ◽  
Surface Reaction ◽  
Colorimetric Detection

High-Performance Colorimetric Detection of Thiosulfate by Using Silver Nanoparticles for Smartphone-Based Analysis

ACS Sensors ◽  
2017 ◽  
Vol 2 (8) ◽  
pp. 1152-1159 ◽  
Author(s):  
Chen Dong ◽  
Zhuqing Wang ◽  
Yujie Zhang ◽  
Xuehua Ma ◽  
M. Zubair Iqbal ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
High Performance ◽  
Colorimetric Detection

Green synthesis, characterization of Radix Hedysari-mediated silver nanoparticles and its sensitive colorimetric detection for Pb2+ in Yellow River Medium

2022 ◽  
Author(s):  
Jiahui Ji ◽  
Huifang Wu ◽  
Donghan Wang ◽  
Dan Liu ◽  
Xinyue Chen ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Yellow River ◽  
Colorimetric Detection ◽  
Environment Friendly ◽  
Alcohol Extract

In this study, a safe, rapid, and environment-friendly green synthesis for silver nanoparticles using the alcohol extract of Radix Hedysari (RH-AgNPs) was developed, the alcohol extract of Radix Hedysari (RH)...

Humic Acid Functionalized - Silver Nanoparticles as Nanosensor for Colorimetric Detection of Copper (II) Ions in Aqueous Solutions

2020 ◽  
Vol 831 ◽  
pp. 142-150
Author(s):  
Edgar Clyde R. Lopez ◽  
Michael Angelo Zafra ◽  
Jon Nyner L. Gavan ◽  
Emil David A. Villena ◽  
Francis Eric P. Almaquer ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Humic Acid ◽  
Aqueous Solutions ◽  
Limit Of Detection ◽  
Colorimetric Detection ◽  
Hydrodynamic Diameter ◽  
Limit Of Quantification ◽  
Local Surface Plasmon Resonance ◽  
Optical Absorbance ◽  
Absorbance Spectra

Humic acid - functionalized silver nanoparticles (HA-AgNPs) were successfully synthesized and used to detect Cu (II) ions in aqueous solutions. The HA-AgNPs was shown to have an average hydrodynamic diameter of 101.4 nm and a polydispersity index of 0.447. The absorbance spectra of HA-AgNPs showed the characteristic local surface plasmon resonance (LSPR) peak of AgNPs at 408.3 nm. Addition of Cu (II) in the HA-AgNPs led to their agglomeration as evidenced by the change in their surface morphology and their corresponding optical absorbance spectra. The synthesized HA-AgNPs showed a strong linear response for Cu (II) concentrations in the range of 0.00 – 1.25 mM with a limit of detection (LoD) of 4.4428 ± 0.1091 mg L-1, a limit of quantification (LoQ) of 14.8094 ± 0.3636 mg L-1, and a limit of blank (LoB) of 0.1214 ± 0.0065 mg L-1. Statistical analysis showed that this calibration curve could be used to quantify Cu (II) concentrations within a 95% confidence level. Furthermore, HA-AgNPs was found to be selective for Cu (II) detection based on the selectivity study against common metal ions found in drinking water. This shows that the synthesized HA-AgNPs can be used as an environment-friendly colorimetric nanosensor for rapid and point-of-need quantification of Cu (II) ions in aqueous media.

Rapid colorimetric detection of mercury using silver nanoparticles in the presence of methionine

2020 ◽  
Vol 228 ◽  
pp. 117712 ◽  
Author(s):  
S. Balasurya ◽  
Asad Syed ◽  
Ajith M. Thomas ◽  
Najat Marraiki ◽  
Abdallah M. Elgorban ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Colorimetric Detection
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