Size-controlled preparation of gold nanoparticles with novel pH responsive gemini amphiphiles

2015 ◽  
Vol 3 (24) ◽  
pp. 6334-6340 ◽  
Author(s):  
Li Cheng ◽  
Xuefeng Li ◽  
Jinfeng Dong
Keyword(s):  
Gold Nanoparticles ◽  
Au Nanoparticles ◽  
Phase Transfer ◽  
Ph Sensitive ◽  
Ph Responsive ◽  
Gemini Amphiphiles ◽  
Controlled Preparation ◽  
Size Controlled

Novel pH sensitive Di-CnPh gemini amphiphiles can act as both the phase-transfer reagent and stabilizer to make extremely small Au nanoparticles.

Recovery and redispersion of gold nanoparticles using the self-assembly of a pH sensitive zwitterionic amphiphile

2014 ◽  
Vol 50 (85) ◽  
pp. 12933-12936 ◽  
Author(s):  
Clara Morita-Imura ◽  
Yoshiro Imura ◽  
Takeshi Kawai ◽  
Hitoshi Shindo
Keyword(s):  
Gold Nanoparticles ◽  
Self Assembly ◽  
Au Nanoparticles ◽  
Ph Sensitive ◽  
The Self ◽  
Ph Responsive

The pH-responsive self-assembly of a zwitterionic amphiphile was expanded to the recovery of gold (Au) nanoparticles. Multilayered lamellae were incorporated into the nanoparticles. Redispersion of nanoparticles was achieved by the transition of self-assembly based on pH.

scholarly journals Size-controlled and water-soluble gold nanoparticles using UV-induced ligand exchange and phase transfer

2018 ◽  
Vol 54 (95) ◽  
pp. 13355-13358 ◽  
Author(s):  
Jan Bart ten Hove ◽  
Laura M. I. Schijven ◽  
Junyou Wang ◽  
Aldrik H. Velders
Keyword(s):  
Gold Nanoparticles ◽  
Ligand Exchange ◽  
Water Solubility ◽  
Phase Transfer ◽  
Water Soluble ◽  
Size Distributions ◽  
Seeded Growth ◽  
Growth Approach ◽  
Size Controlled

Oleylamine-capped gold nanoparticles (AuNPs) with sizes ranging from 5 to 13 nm and narrow size distributions (<10%) are synthesized by using a seeded growth approach. Water-solubility is achieved by using a UV-induced ligand exchange approach.

scholarly journals Size-Controlled Preparation of Gold Nanoparticles Deposited on Surface-Fibrillated Cellulose Obtained by Citric Acid Modification

ACS Omega ◽  
2020 ◽  
Vol 5 (51) ◽  
pp. 33206-33213
Author(s):  
Threeraphat Chutimasakul ◽  
Yuta Uetake ◽  
Jonggol Tantirungrotechai ◽  
Taka-aki Asoh ◽  
Hiroshi Uyama ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Citric Acid ◽  
Acid Modification ◽  
Controlled Preparation ◽  
Size Controlled

scholarly journals Size-controlled preparation of fluorescent gold nanoparticles using pamoic acid

Gold Bulletin ◽  
2015 ◽  
Vol 48 (1-2) ◽  
pp. 85-92 ◽  
Author(s):  
Md. Abdul Aziz ◽  
Jong-Pil Kim ◽  
M. Nasiruzzaman Shaikh ◽  
Munetaka Oyama ◽  
Fatai Olawale Bakare ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Pamoic Acid ◽  
Controlled Preparation ◽  
Size Controlled

scholarly journals Natural tripeptide capped pH-sensitive gold nanoparticles for efficacious doxorubicin delivery both in vitro and in vivo

Nanoscale ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 1067-1074 ◽  
Author(s):  
Krishan Kumar ◽  
Parikshit Moitra ◽  
Mohsin Bashir ◽  
Paturu Kondaiah ◽  
Santanu Bhattacharya
Keyword(s):  
Gold Nanoparticles ◽  
Cell Line ◽  
Cancer Cell ◽  
Cancer Cell Line ◽  
Ph Sensitive ◽  
Drug Resistant ◽  
Ph Responsive ◽  
Line P

AuNPs capped with a natural pH-responsive short tripeptide sequence are presented herein for the successful delivery of doxorubicin both in vitro and in vivo. Efficacy of the system has also been evaluated in drug resistant cancer cell line.

Synthesis of pH-Responsive Nanocomposite Microgels with Size-Controlled Gold Nanoparticles from Ion-Doped, Lightly Cross-Linked Poly(vinylpyridine)

Langmuir ◽  
2010 ◽  
Vol 26 (2) ◽  
pp. 1254-1259 ◽  
Author(s):  
Kensuke Akamatsu ◽  
Megumi Shimada ◽  
Takaaki Tsuruoka ◽  
Hidemi Nawafune ◽  
Syuji Fujii ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Ph Responsive ◽  
Size Controlled

A pH responsive micelle combined with Au nanoparticles for multi-stimuli release of both hydrophobic and hydrophilic drug

RSC Advances ◽  
2016 ◽  
Vol 6 (63) ◽  
pp. 58654-58657 ◽  
Author(s):  
Qian Lu ◽  
Yi-Fan Meng ◽  
Peng-Cheng Gao ◽  
Jing Wei ◽  
Si Sun ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Au Nanoparticles ◽  
Nile Red ◽  
Ph Responsive ◽  
Hydrophilic Drug ◽  
Spherical Micelles ◽  
Self Assembled

Spherical micelles self-assembled from PPMA-g-DNA interacted with ssDNA modified gold nanoparticles and the resulting hybrids may serve as nanocarriers for releasing both Nile red and DOX, which can be triggered by many stimuli.

Size Controlled Synthesis of 2-6 nm Gold Nanoparticles via Controlling Concentration of the Reducing Agent and Temperature

2012 ◽  
Vol 557-559 ◽  
pp. 572-576 ◽  
Author(s):  
Wei Luo ◽  
Fei Wang ◽  
Xue Ao Zhang ◽  
Zheng Zheng Shao ◽  
Jing Yue Fang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Reducing Agent ◽  
Controlled Synthesis ◽  
Key Factors ◽  
Facile Synthesis ◽  
Au Nps ◽  
Size Dependent ◽  
Octyl Amine ◽  
Controlled Preparation ◽  
Size Controlled

We reported a facile synthesis route for size controlled preparation of gold nanoparticles (Au NPs) by controlling concentration of the reducing agent and temperature. Nearly monodisperse Au NPs with mean diameters of 2-6 nm are acquired via the reduction of HAuCl4by NaBH4in the presence of tri-n-octyl amine and dodecanethiol in solvent of toluene. Results indicate that concentration of the reducing agent and temperature are key factors to tune the particle size and uniformity in the synthesis of Au NPs. The as-synthesized Au NPs show size dependent surface plasmonic properties between 510 and 525 nm, while Au NPs with size smaller than 3 nm do not clearly show the property.

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