Micro-patterns of Au@SiO2 core-shell nanoparticles formed by electrostatic interactions

2008 ◽  
Vol 254 (6) ◽  
pp. 1684-1690 ◽  
Author(s):  
Youli Qi ◽  
Miao Chen ◽  
Shan Liang ◽  
Wu Yang ◽  
Jing Zhao
Keyword(s):  
Electrostatic Interactions ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles ◽  
Micro Patterns

α-Lactalbumin and chitosan core–shell nanoparticles: resveratrol loading, protection, and antioxidant activity

2020 ◽  
Vol 11 (2) ◽  
pp. 1525-1536 ◽  
Author(s):  
Yuexiang Liu ◽  
Luyu Gao ◽  
Jiang Yi ◽  
Yuting Fan ◽  
Xuli Wu ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Electrostatic Interactions ◽  
Core Shell ◽  
Mass Ratio ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles ◽  
Oppositely Charged

Resveratrol (RES)-loaded protein–polysaccharide nanoparticles were fabricated through simple electrostatic interactions with oppositely charged α-lactalbumin (ALA) and chitosan (CHI) with a mass ratio of 5 : 1 without the addition of NaCl at pH 6.5.

Facile Fabrication of Antibacterial Core–Shell Nanoparticles Based on PHMG Oligomers and PAA Networks via Template Polymerization

2014 ◽  
Vol 67 (1) ◽  
pp. 142 ◽  
Author(s):  
You Wei Zhang ◽  
Yan Chen ◽  
Jiong Xin Zhao
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Acrylic Acid ◽  
Electrostatic Interactions ◽  
Minimum Size ◽  
Core Shell ◽  
Nanoparticle Dispersion ◽  
Shell Nanoparticles ◽  
Transmission Electron ◽  
Core Shell Nanoparticles

Antibacterial core–shell nanoparticles based on poly(hexamethylene guanidine hydrochloride) (PHMG) oligomers and poly(acrylic acid) (PAA) networks are efficiently fabricated via a facile one-step co-polymerization of acrylic acid and N,N′-methylenebisacrylamide on PHMG templates in aqueous solution. Dynamic light scattering, Fourier-transform infrared spectroscopy, and transmission electron microscopy observations were used to characterize the size, morphology, and structure of the nanoparticles, as well as the interactions between the components. Also, the stability of the nanoparticle dispersion against storage, pH value, salt, and temperature was investigated. The results show that the crosslinked PAA/PHMG nanoparticles are stabilized by electrostatic interactions. The core–shell structure of the nanoparticles was confirmed by transmission electron microscopy observation. The size of the nanoparticles increases substantially with extension of storage or with increase of the salt concentration. The nanoparticle dispersion is stable in a pH range of 2.0–4.0. The size change of the nanoparticles with pH of the medium is parabolic, and the minimum size is reached at pH 3.0. A rise of temperature leads to a slight and recoverable size increase of the nanoparticles. Antibacterial efficiency was evaluated quantitatively against Escherichia coli and Staphylococcus aureus by the plating method according to Standard JC/T 897–2002. The antibacterial activity against these two bacteria are both above 99.0 % at a nanoparticle concentration of 5 mg mL–1. This makes the nanoparticle dispersion a good candidate for the application of antibacterial water-based coatings and textiles coating.

Preparation and Electrocatalytic Performance of Thin-shell Ni/Pt Core-shell Nanoparticles

2012 ◽  
Vol 27 (1) ◽  
pp. 95-101
Author(s):  
Shi-Bin LIU ◽  
Chun-Ying YANG ◽  
Zhong-Lin ZHANG ◽  
Dong-Hong DUAN ◽  
Xiao-Gang HAO ◽  
...  
Keyword(s):  
Thin Shell ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Electrocatalytic Performance ◽  
Core Shell Nanoparticles

Pluronic-Based Core/Shell Nanoparticles for Drug Delivery and Diagnosis

2013 ◽  
Vol 20 (28) ◽  
pp. 3488-3499 ◽  
Author(s):  
Yon Jung ◽  
Hwanbum Lee ◽  
Jae Kim ◽  
Eun Koo ◽  
Keun Oh ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

Colorimetric and SERS dual-mode sensing of mercury (II) based on controllable etching of Au@Ag core/shell nanoparticles

2021 ◽  
Vol 330 ◽  
pp. 129364
Author(s):  
Jinhua Wang ◽  
Jiamin Wu ◽  
Yuping Zhang ◽  
Xia Zhou ◽  
Ziwei Hu ◽  
...  
Keyword(s):  
Core Shell ◽  
Dual Mode ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

Intermetallic FePt@PtBi Core–Shell Nanoparticles for Oxygen Reduction Electrocatalysis

2021 ◽  
Author(s):  
Jingyu Guan ◽  
Shaoxuan Yang ◽  
Tongtong Liu ◽  
Yihuan Yu ◽  
Jin Niu ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles
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