DNA-Hairpin-Templated Silver Nanoclusters: A Study on Stem Sequence

2020 ◽  
Author(s):  
Yahui Guo ◽  
Fumiao Shen ◽  
Yuliang Cheng ◽  
Hang Yu ◽  
Yunfei Xie ◽  
...  
Keyword(s):  
Silver Nanoclusters ◽  
Dna Hairpin

The structural shift of a DNA template between a hairpin and a dimer tunes the emission color of DNA-templated AgNCs

Nanoscale ◽  
2018 ◽  
Vol 10 (44) ◽  
pp. 20717-20722 ◽  
Author(s):  
Pratik Shah ◽  
Suk Won Choi ◽  
Riddhi Nagda ◽  
Reka Geczy ◽  
Seok Keun Cho ◽  
...  
Keyword(s):  
Dna Sequence ◽  
Silver Nanoclusters ◽  
Dna Hairpin ◽  
Fluorescent Properties ◽  
Structural Shift ◽  
Emission Color ◽  
Dna Template

The structural shift of a DNA hairpin-dimer is as important as the DNA sequence in determining the fluorescent properties of DNA-stabilized silver nanoclusters (DNA/AgNCs).

Sequential Injection Analysis of Fe(II) in Supplement Samples Using Silver Nanoclusters as Optical Sensor

2016 ◽  
Vol 12 (6) ◽  
pp. 612-619
Author(s):  
Dittapong Pairoh ◽  
Kanokwan Chaiendoo ◽  
Wittaya Ngeontae ◽  
Rodjana Burakham
Keyword(s):  
Optical Sensor ◽  
Silver Nanoclusters ◽  
Sequential Injection Analysis ◽  
Sequential Injection

scholarly journals Innentitelbild: Core Modulation of 70‐Nuclei Core‐Shell Silver Nanoclusters (Angew. Chem. 19/2019)

2019 ◽  
Vol 131 (19) ◽  
pp. 6168-6168
Author(s):  
Jia‐Wei Liu ◽  
Zhi Wang ◽  
Yu‐Ming Chai ◽  
Mohamedally Kurmoo ◽  
Quan‐Qin Zhao ◽  
...  
Keyword(s):  
Silver Nanoclusters ◽  
Core Shell

Emergence of intense near-infrared photoluminescence by photoactivation of silver nanoclusters

2021 ◽  
Author(s):  
Wataru Ishii ◽  
Shohei Katao ◽  
Yoshiko Nishikawa ◽  
Yasuo Okajima ◽  
Atsuya Hatori ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Near Infrared ◽  
Silver Nanoclusters ◽  
Pyridine Solution

Photoirradiation to a pyridine solution of Ag29 nanoclusters (NCs) with red photoluminescence (PL) at 680 nm activated intense PL in the near infrared (NIR) region, giving a PL quantum yield...

scholarly journals Green Synthesis and Incorporation of Sericin Silver Nanoclusters into Electrospun Ultrafine Cellulose Acetate Fibers for Anti-Bacterial Applications

Polymers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1411
Author(s):  
Mujahid Mehdi ◽  
Huihui Qiu ◽  
Bing Dai ◽  
Raja Fahad Qureshi ◽  
Sadam Hussain ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Green Synthesis ◽  
Cellulose Acetate ◽  
Antibacterial Properties ◽  
Vital Role ◽  
Silver Nanoclusters ◽  
Composite Fibers ◽  
E Coli ◽  
Antibacterial Performance ◽  
Field Emission Electron Microscopy

Fiber based antibacterial materials have gained an enormous attraction for the researchers in these days. In this study, a novel Sericin Encapsulated Silver Nanoclusters (sericin-AgNCs) were synthesized through single pot and green synthesis route. Subsequently these sericin-AgNCs were incorporated into ultrafine electrospun cellulose acetate (CA) fibers for assessing the antibacterial performance. The physicochemical properties of sericin-AgNCs/CA composite fibers were investigated by transmission electron microscopy (TEM), field emission electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FTIR) and wide X-ray diffraction (XRD). The antibacterial properties of sericin-AgNCs/CA composite fibers against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) were systematically evaluated. The results showed that sericin-AgNCs incorporated in ultrafine CA fibers have played a vital role for antibacterial activity. An amount of 0.17 mg/mL sericin-AgNCs to CA fibers showed more than 90% results and elevated upto >99.9% with 1.7 mg/mL of sericin-AgNCs against E. coli. The study indicated that sericin-AgNCs/CA composite confirms an enhanced antibacterial efficiency, which could be used as a promising antibacterial product.

scholarly journals Revealing the chirality origin and homochirality crystallization of Ag14 nanocluster at the molecular level

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xiao-Qian Liang ◽  
Ying-Zhou Li ◽  
Zhi Wang ◽  
Shan-Shan Zhang ◽  
Yi-Cheng Liu ◽  
...  
Keyword(s):  
Molecular Level ◽  
Spontaneous Resolution ◽  
Silver Nanoclusters ◽  
Supramolecular Interactions ◽  
Hydrogen Atoms ◽  
Special Effects ◽  
Π Stacking Interaction ◽  
Origin Of Chirality ◽  
Present Characteristic ◽  
Aromatic Hydrogen

AbstractAlthough chirality is an ever-present characteristic in biology and some artificial molecules, controlling the chirality and demystifying the chirality origin of complex assemblies remain challenging. Herein, we report two homochiral Ag14 nanoclusters with inherent chirality originated from identical rotation of six square faces on a Ag8 cube driven by intra-cluster π···π stacking interaction between pntp− (Hpntp = p-nitrothiophenol) ligands. The spontaneous resolution of the racemic (SD/rac-Ag14a) to homochiral nanoclusters (SD/L-Ag14 and SD/R-Ag14) can be realized by re-crystallizing SD/rac-Ag14a in acetonitrile, which promotes the homochiral crystallization in solid state by forming C–H···O/N hydrogen bonds with nitro oxygen atoms in pntp− or aromatic hydrogen atoms in dpph (dpph = 1,6-bis(diphenylphosphino)hexane) on Ag14 nanocluster. This work not only provides strategic guidance for the syntheses of chiral silver nanoclusters in an all-achiral environment, but also deciphers the origin of chirality at molecular level by identifying the special effects of intra- and inter-cluster supramolecular interactions.

scholarly journals Revealing a possible sensor mechanism of DNA - based silver nanoclusters

2020 ◽  
Vol 1695 ◽  
pp. 012058
Author(s):  
M A Kapitonova ◽  
Z V Reveguk ◽  
A I Kononov
Keyword(s):  
Silver Nanoclusters
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