Results 51 to 60 of about 48,863 (286)

Uptake and cytotoxicity of citrate-coated gold nanospheres : comparative studies on human endothelial and epithelial cells [PDF]

, 2012
The use of gold nanoparticles (AuNPs) for diagnostic applications and for drug and gene-delivery is currently under intensive investigation. For such applications, biocompatibility and the absence of cytotoxicity of AuNPs is essential. Although generally
Couraud, Pierre-Olivier, Freese, Christian, Gibson, Matthew I., Kirkpatrick, C. J. (C. James), Romero, Ignacio A., Uboldi, Chiara, Unger, Ronald E., Weksler, Babette B.   +7 more
core   +7 more sources

Controlling the Nanoscale Patterning of AuNPs on Silicon Surfaces [PDF]

Nanomaterials, 2013
This study evaluates the effectiveness of vapour-phase deposition for creating sub-monolayer coverage of aminopropyl triethoxysilane (APTES) on silicon in order to exert control over subsequent gold nanoparticle deposition. Surface coverage was evaluated indirectly by observing the extent to which gold nanoparticles (AuNPs) deposited onto the modified ...
Chris J. Allender, Jenna L. Bowen, Sophie E. Williams, Philip R. Davies   +3 more
openaire   +3 more sources

Gold Nanoparticle Self-Aggregation on Surface with 1,6-Hexanedithiol Functionalization

Nanomaterials, 2020
Here we study the morphology and the optical properties of assemblies made of small (17 nm) gold nanoparticles (AuNPs) directly on silicon wafers coated with (3-aminopropyl)trimethoxysilane (APTES). We employed aliphatic 1,6-hexanedithiol (HDT) molecules
Maksym Stetsenko, Tetiana Margitych, Serhii Kryvyi, Lidia Maksimenko, Ali Hassan, Svitlana Filonenko, Βaikui Li, Junle Qu, Elke Scheer, Sergii Snegir   +9 more
doaj   +1 more source

Nanomaterials for Healthcare Biosensing Applications [PDF]

, 2019
In recent years, an increasing number of nanomaterials have been explored for their applications in biomedical diagnostics, making their applications in healthcare biosensing a rapidly evolving field.
Altintas, Zeynep, Pirzada, Muqsit
core   +1 more source

Bioinspired Stabilization of Fluorescent Au@SiO2 Tracers for Multimodal Biological Imaging

Advanced Functional Materials, EarlyView.
This study demonstrates a bioinspired stabilization strategy for fluorescent gold‐silica nanoparticles. Inspired by natural biosilica maturation, high‐temperature calcination transforms the silica shells, preventing dissolution in cell culture media and intracellular environments.
Wang Sik Lee, Henry Lee, Patricia Taladriz‐Blanco, Dimitri Vanhecke, Barbara Rothen‐Rutishauser, Alke Petri‐Fink   +5 more
wiley   +1 more source

Highly Sensitive and Selective Colorimetric Detection of Creatinine Based on Synergistic Effect of PEG/Hg²⁺–AuNPs

Nanomaterials, 2019
A colorimetric sensor, based on the synergistic coordination effect on a gold nanoparticle (AuNP) platform has been developed for the determination of creatinine.
Yunxia Xia, Chenxue Zhu, Jie Bian, Yuxi Li, Xunyong Liu, Yi Liu   +5 more
doaj   +1 more source

A general perspective of the characterization and quantification of nanoparticles: Imaging, spectroscopic, and separation techniques [PDF]

, 2014
This article gives an overview of the different techniques used to identify, characterize, and quantify engineered nanoparticles (ENPs). The state-of-the-art of the field is summarized, and the different characterization techniques have been grouped ...
Anderson de la LLana, S., Anderson, I.S., Capitán Vallvey, L. F., Cecchini, R., Costa Fernández, J.M., Domínguez Meister, Santiago, Lapresta Fernández, A., Marco, María Pilar, Moreno Bondi, M.C., Salinas Castillo, A., Sánchez López, J.C.   +10 more
core   +3 more sources

Gold Nanoclusters as Dual Agents for Engineering Tumor Vascular Leakiness and Performing Photothermal Therapy

Advanced Functional Materials, EarlyView.
Many cancer nanotherapeutics, while potent, suffer from the inability to escape from the tumor vasculature, especially in the absence of endothelial permeability. In this work, ultrasmall gold nanoclusters could engineer nanomaterials induced endothelial leakiness (NanoEL) and harness strong NIR induced photothermal characteristics to suppress tumor ...
Nengyi Ni, Kuoran Xing, Bihan Zhang, Baoteng Wang, Yinglu Chen, Jianping Xie, Xiao Sun, Jinping Wang, David Tai Leong   +8 more
wiley   +1 more source

l-cysteine-modified chiral gold nanoparticles promote periodontal tissue regeneration

Bioactive Materials, 2021
Gold nanoparticles (AuNPs) with surface-anchored molecules present tremendous potential in tissue regeneration. However, little is known about chiral-modified AuNPs.
Shuang Zhang, Hong Zhou, Na Kong, Zezheng Wang, Huangmei Fu, Yangheng Zhang, Yin Xiao, Wenrong Yang, Fuhua Yan   +8 more
doaj   +1 more source

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

Advanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia, Valentina Girelli Consolaro, Sophie Marbach, Nancy Rahbany, Grégoire Petit, Ovidiu Ersen, Juan J. Giner‐Casares, Ali Abou‐Hassan   +7 more
wiley   +1 more source