One‐pot facile synthesis of silk sericin‐capped gold nanoparticles by UVC radiation: Investigation of stability, biocompatibility, and antibacterial activity

2019 ◽  
Vol 107 (12) ◽  
pp. 2667-2679 ◽  
Author(s):  
Omer Akturk ◽  
Zehra Gun Gok ◽  
Ozge Erdemli ◽  
Mustafa Yigitoglu
Keyword(s):  
Gold Nanoparticles ◽  
Antibacterial Activity ◽  
Facile Synthesis ◽  
One Pot ◽  
Silk Sericin ◽  
Uvc Radiation

scholarly journals From a precursor to an etchant: spontaneous inversion of the role of Au(iii) chloride for one-pot synthesis of smooth and spherical gold nanoparticles

2019 ◽  
Vol 1 (6) ◽  
pp. 2157-2161 ◽  
Author(s):  
Seokyoung Yoon ◽  
Chansong Kim ◽  
Byoungsang Lee ◽  
Jung Heon Lee
Keyword(s):  
Gold Nanoparticles ◽  
Facile Synthesis ◽  
One Pot ◽  
One Pot Synthesis ◽  
Spherical Gold Nanoparticles

Inversion of the role of Au(iii) chloride allows facile synthesis of smooth and spherical AuNPs with nanoscale size tunability.

Facile, one-pot, in aqua synthesis of catalytically competent gold nanoparticles using pyrogallol[4]arene as the sole reagent

2019 ◽  
Vol 55 (44) ◽  
pp. 6261-6264 ◽  
Author(s):  
Laxmi Adhikari ◽  
Nathaniel E. Larm ◽  
Durgesh V. Wagle ◽  
Jerry L. Atwood ◽  
Gary A. Baker
Keyword(s):  
Gold Nanoparticles ◽  
Dual Role ◽  
Facile Synthesis ◽  
One Pot ◽  
Stabilizing Agent

Rapid and facile synthesis of macrocycle-capped gold nanoparticles employing pyrogallol[4]arenes as a dual-role reducing and stabilizing agent.

scholarly journals Atomically thin Pt shells on Au nanoparticle cores: facile synthesis and efficient synergetic catalysis

2016 ◽  
Vol 4 (9) ◽  
pp. 3278-3286 ◽  
Author(s):  
C. Engelbrekt ◽  
N. Šešelj ◽  
R. Poreddy ◽  
A. Riisager ◽  
J. Ulstrup ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Electrochemical Oxidation ◽  
Aromatic Ring ◽  
Au Nanoparticle ◽  
Core Shell ◽  
Facile Synthesis ◽  
One Pot ◽  
Mild Conditions ◽  
The Core ◽  
Thin Platinum

Atomically thin platinum shells on gold nanoparticles (NPs) are synthesized in one pot under mild conditions. The core-shell NPs exhibit excellent catalysis for energy related processes such as electrochemical oxidation of biofuels, aromatic ring hydrogenation, and γ-valerolactone production.

scholarly journals One-Pot, Surfactant-Free Synthesis of Gold Nanostars and Evaluation of Their Antibacterial Effects against Propionibacterium acnes

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Phat Trong Huynh ◽  
Giang Dang Nguyen ◽  
Khanh Thi Le Tran ◽  
Thu Minh Ho ◽  
Bich Thi Duong ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Antibacterial Activity ◽  
Propionibacterium Acnes ◽  
Acne Vulgaris ◽  
Nanoparticle Synthesis ◽  
Plate Count ◽  
Diffusion Method ◽  
One Pot ◽  
Gold Nanostars ◽  
Seed Mediated

Anisotropic gold nanoparticles, especially gold nanostars, are used in many fields of biomedical applications such as sensing, targeted drug delivery, and diagnostic and photothermal therapy. In this study, we introduced a novel application of gold nanostars as an antimicrobial agent. While spherical gold nanoparticles have an inappreciable effect, gold nanostars exhibit significant antibacterial activity. Besides, the seed-mediated method, a conventional technique for preparing gold nanostars, is rather complex and toxic to human and environment due to unsafe synthesized materials such as surfactants and reducers. In recent years, green chemistry for nanoparticle synthesis is attractive because of its advantages. Instead of the seed-mediated procedure, we present a facile and green procedure to synthesize gold nanostars using ascorbic acid as a reductant and chitosan as a directing-growth agent. The influences of reacting parameters were evaluated to determine the optimal conditions. Star-shaped gold nanoparticles were successfully synthesized with average size tunning from 137.0 ± 20.7   nm to 281.9 ± 25.8   nm of the core and 14.0 ± 4.4   nm to 54.2 ± 11.9   nm of branches. Antibacterial activity against Propionibacterium acnes of gold nanostars was also investigated. Propionibacterium acnes is one of the main reasons causing acne vulgaris. The antibacterial test was evaluated by the plate count and well diffusion method. The results showed a significant effect that gold nanostars could be the prospective agent for replacing antibiotics in acne treatment.

Design, Facile Synthesis, Antibacterial Activity and Structure-Activity Relationship of Novel Di- and Tri-Substituted 1,3,5-Triazines

2012 ◽  
Vol 9 (3) ◽  
pp. 329-335 ◽  
Author(s):  
Surajit Kumar Ghosh ◽  
Ashmita Saha ◽  
Bornali Hazarika ◽  
Udaya Pratap Singh ◽  
Hans Raj Bhat ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Structure Activity Relationship ◽  
Activity Relationship ◽  
Facile Synthesis ◽  
Structure Activity ◽  
Relationship Of

Antibacterial Activity of Gold Nanoparticles Conjugated by Aminoglycosides Against A. baumannii Isolates from Burn Patients

2019 ◽  
Vol 13 (3) ◽  
pp. 256-264 ◽  
Author(s):  
Mehdi Rostami rad ◽  
Hossein Kazemian ◽  
Fateme Yazdani ◽  
Mohammad Reza Zand Monfared ◽  
Hoseinali Rahdar ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Antibacterial Activity ◽  
Burn Patients

Synthesis of Pyrrolo[1,2-a][1,6]- and [1,8]naphthyridines by Alkyne-Carbonyl Metathesis

Synthesis ◽  
2020 ◽  
Author(s):  
Peter Ehlers ◽  
Peter Langer ◽  
Marian Blanco Ponce ◽  
Silvio Parpart ◽  
Alexander Villinger ◽  
...  
Keyword(s):  
Heterocyclic Compounds ◽  
Metathesis Reaction ◽  
Synthetic Methodology ◽  
Facile Synthesis ◽  
Reaction Conditions ◽  
One Pot ◽  
Metal Free ◽  
Modular Synthesis

AbstractA concise and modular synthesis of pyrrolo[1,2-a][1,6]- and [1,8]naphthyridines by a one-pot two-step reaction consisting of electrophilic acylation followed by an alkyne-carbonyl-metathesis reaction as the final cyclization step is reported. This developed synthetic methodology allows the facile synthesis of these heterocyclic core structures in mainly high overall yields under metal-free conditions. Reaction conditions are carefully optimized and display a novel supplement to access these tricyclic heterocyclic compounds.

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