UV photo-mediated size-focusing synthesis of silver nanoclusters

RSC Advances ◽  
2016 ◽  
Vol 6 (77) ◽  
pp. 73600-73604 ◽  
Author(s):  
C. Tominaga ◽  
H. Hasegawa ◽  
K. Yamashita ◽  
R. Arakawa ◽  
H. Kawasaki
Keyword(s):  
Silver Nanoclusters ◽  
First Report ◽  
Ag Nanoclusters ◽  
Ag Ncs

In this work, we first report the photo-mediated size-focusing synthesis of glutathione (SG)-protected atomically precise Ag nanoclusters (Ag NCs).

The in situ synthesis of silver nanoclusters inside a bacterial cellulose hydrogel for antibacterial applications

2020 ◽  
Vol 8 (22) ◽  
pp. 4846-4850 ◽  
Author(s):  
Yong Liu ◽  
Shanshan Wang ◽  
Ziping Wang ◽  
Qiaofeng Yao ◽  
Shasha Fang ◽  
...  
Keyword(s):  
Bacterial Cellulose ◽  
In Situ Synthesis ◽  
Silver Nanoclusters ◽  
Gram Negative Bacteria ◽  
Gram Positive ◽  
Gram Negative ◽  
Cellulose Hydrogel ◽  
Ag Nanoclusters ◽  
Ag Ncs

An antibacterial hydrogel is developed through in situ formation of Ag nanoclusters on bacterial cellulous, which shows better and longer-lasting killing efficacy than that of pristine Ag NCs against both Gram-positive and Gram-negative bacteria.

scholarly journals An aptasensor for the label-free detection of thrombin based on turn-on fluorescent DNA-templated Cu/Ag nanoclusters

RSC Advances ◽  
2020 ◽  
Vol 10 (58) ◽  
pp. 35374-35380
Author(s):  
Baozhu Zhang ◽  
Chunying Wei
Keyword(s):  
Target Recognition ◽  
Silver Nanoclusters ◽  
Label Free ◽  
Turn On ◽  
Highly Sensitive ◽  
Label Free Detection ◽  
Ag Nanoclusters ◽  
Ag Ncs

A highly sensitive thrombin aptasensor was constructed based on the alteration of the aptamer conformation induced by the target recognition and the turn-on fluorescence due to the proximity of two darkish DNA-templated copper/silver nanoclusters (DNA-Cu/Ag NCs).

Aptasensors based on supramolecular structures of nucleic acid-stabilized Ag nanoclusters

2015 ◽  
Vol 51 (6) ◽  
pp. 1100-1103 ◽  
Author(s):  
Etery Sharon ◽  
Natalie Enkin ◽  
H. Bauke Albada ◽  
Itamar Willner
Keyword(s):  
Nucleic Acid ◽  
Supramolecular Structures ◽  
Luminescence Detection ◽  
Ag Nanoclusters ◽  
Ag Ncs ◽  
Multiplexed Analysis

A supramolecular DNA nanocluster consisting of Ag NCs allows the luminescence detection and multiplexed analysis of ligand–aptamer complexes.

scholarly journals A Turn-On Detection of DNA Sequences by Means of Fluorescence of DNA-Templated Silver Nanoclusters via Unique Interactions of a Hydrated Ionic Liquid

Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 2889 ◽  
Author(s):  
Ye Teng ◽  
Hisae Tateishi-Karimata ◽  
Takaaki Tsuruoka ◽  
Naoki Sugimoto
Keyword(s):  
Ionic Liquid ◽  
Dna Sequences ◽  
Fluorescence Emission ◽  
Silver Nanoclusters ◽  
Dihydrogen Phosphate ◽  
Target Sequence ◽  
Aqueous Buffer ◽  
Turn On ◽  
Sensitivity And Selectivity ◽  
Ag Ncs

Nucleic acid stability and structure, which are crucial to the properties of fluorescent DNA-templated silver nanoclusters (DNA-Ag NCs), significantly change in ionic liquids. In this work, our purpose was to study DNA-Ag NCs in a buffer containing the hydrated ionic liquid of choline dihydrogen phosphate (choline dhp) to improve fluorescence for application in DNA detection. Due to the stabilisation of an i-motif structure by the choline cation, a unique fluorescence emission—that was not seen in an aqueous buffer—was observed in choline dhp and remained stable for more than 30 days. A DNA-Ag NCs probe was designed to have greater fluorescence intensity in choline dhp in the presence of a target DNA. A turn-on sensing platform in choline dhp was built for the detection of the BRCA1 gene, which is related to familial breast and ovarian cancers. This platform showed better sensitivity and selectivity in distinguishing a target sequence from a mutant sequence in choline dhp than in the aqueous buffer. Our study provides new evidence regarding the effects of structure on properties of fluorescent DNA-Ag NCs and expands the applications of fluorescent DNA-Ag NCs in an ionic liquid because of improved sensitivity and selectivity.

Label-free DNA detection based on oligonucleotide-stabilized silver nanoclusters and exonuclease III-catalyzed target recycling amplification

2014 ◽  
Vol 6 (15) ◽  
pp. 6082-6087 ◽  
Author(s):  
Hui Ma ◽  
Wei Wei ◽  
Qian Lu ◽  
Zhixin Zhou ◽  
Henan Li ◽  
...  
Keyword(s):  
High Sensitivity ◽  
Silver Nanoclusters ◽  
Label Free ◽  
Exonuclease Iii ◽  
Target Recycling ◽  
Free Dna ◽  
Sensitivity And Selectivity ◽  
Exo Iii ◽  
Ag Ncs ◽  
Recycling Amplification

A label-free DNA biosensor with high sensitivity and selectivity is constructed by using DNA–Ag NCs and Exo III-catalyzed target recycling amplification.

scholarly journals Green Synthesis of Fluorescent Ag Nanoclusters for Detecting Cu2+ Ions and Its “Switch-On” Sensing Application for GSH

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Yunpeng Shang ◽  
Hui Gao ◽  
Lei Li ◽  
Chaoqun Ma ◽  
Jiao Gu ◽  
...  
Keyword(s):  
Limit Of Detection ◽  
Synthesis Method ◽  
Fluorescence Emission ◽  
Emission Peak ◽  
Silver Nanoclusters ◽  
Synthesis Process ◽  
Blue Fluorescence ◽  
Fluorescent Sensing ◽  
Sensing System ◽  
Ag Ncs

Herein, we prepared the L-histidine- (His-) protected silver nanoclusters (Ag NCs) by the microwave synthesis method. The synthesis process was rapid, facile, and environmentally friendly. Under 356 nm excitation, the as-prepared Ag NCs exhibited the blue fluorescence, and the fluorescence emission peak was located at 440 nm. The Ag NCs could successfully detect trace copper (Cu2+) ions in the aqueous solution and the limit of detection (LOD) was as low as 0.6 pM. Interestingly, the Ag NCs showed a different pH-dependent selectivity for both Cu2+ and iron (Fe3+) ions with no responses to other heavy metal ions. Furthermore, the as-fabricated fluorescent sensing system was utilized to detect glutathione (GSH, the LOD was 0.8 nM) by using the “switch-on” fluorescence recovery of Ag NCs through adding glutathione (GSH) to the Cu2+-Ag NCs solution.

scholarly journals The presence of a single-nucleotide mismatch in linker increases the fluorescence of guanine-enhanced DNA-templated Ag nanoclusters and their application for highly sensitive detection of cyanide

RSC Advances ◽  
2018 ◽  
Vol 8 (72) ◽  
pp. 41464-41471 ◽  
Author(s):  
Jun Peng ◽  
Jian Ling ◽  
Qiu-Lin Wen ◽  
Yu Li ◽  
Qiu-E. Cao ◽  
...  
Keyword(s):  
Sensitive Detection ◽  
Single Nucleotide ◽  
Single Base ◽  
Highly Sensitive ◽  
Nucleotide Mismatch ◽  
Single Nucleotide Mismatch ◽  
Ag Nanoclusters ◽  
Ag Ncs ◽  
Highly Sensitive Detection

Single-base mismatched G-rich enhanced DNA-Ag NCs for cyanide detection.

Boiling water synthesis of ultrastable thiolated silver nanoclusters with aggregation-induced emission

2015 ◽  
Vol 51 (82) ◽  
pp. 15165-15168 ◽  
Author(s):  
Kaiyuan Zheng ◽  
Xun Yuan ◽  
Kavan Kuah ◽  
Zhentao Luo ◽  
Qiaofeng Yao ◽  
...  
Keyword(s):  
Boiling Water ◽  
Silver Nanoclusters ◽  
Core Shell ◽  
Aggregation Induced Emission ◽  
Ag Ncs ◽  
Red Luminescence

Boiling water synthesis of core–shell Ag(0)@Ag(i)–thiolate structured Ag NCs with a strong red luminescenceviaaggregation-induced-emission (AIE).

Recognition and determination of multi-metal ions based on silver nanoclusters capped by polyethyleneimine with different molecular weights

2015 ◽  
Vol 39 (12) ◽  
pp. 9293-9298 ◽  
Author(s):  
Fei Qu ◽  
Qianqian Zhang ◽  
Jinmao You
Keyword(s):  
Metal Ions ◽  
Silver Nanoclusters ◽  
Molecular Weights ◽  
Masking Agents ◽  
Ag Nanoclusters

Utilizing suitable masking agents, the fluorescence of Ag nanoclusters, quenched from adding Hg2+, Cu2+, Co2+, and Ni2+, could be restored.

scholarly journals Silk fibroin-derived peptide directed silver nanoclusters for cell imaging

RSC Advances ◽  
2018 ◽  
Vol 8 (49) ◽  
pp. 27805-27810 ◽  
Author(s):  
Peng Gao ◽  
Hao Wang ◽  
Guifu Zou ◽  
Ke-Qin Zhang
Keyword(s):  
Silk Fibroin ◽  
Heavy Chain ◽  
Cell Imaging ◽  
Synthesis Method ◽  
Green Light ◽  
Silver Nanoclusters ◽  
Facile Synthesis ◽  
One Pot ◽  
Ag Ncs

Fluorescent silver nanoclusters (Ag NCs) that are capable of emitting green light have been synthesized using a peptide derived from the C terminal of silk fibroin heavy chain (CSH) via a one-pot, green, and facile synthesis method.

Sign in / Sign up

Export Citation Format

Share Document