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Title: Generating nanoscale aggregates from colloidal nanoparticles by various aerosol spray techniques

Abstract

Growing interest in the environmental and health effects of engineered nanostructured materials requires accurate control of cluster morphology and size in order to make valid interpretations of nanomaterial toxicity. We report the comparison of three methods for the generation of aggregated uniform polystyrene latex (PSL) nanospheres from a colloidal suspension. Atomization, ultrasonic generation and electrospray, which utilize distinct mechanisms for the formation of liquid droplets from a PSL colloidal suspension, are explored as potential methods for nanostructured material synthesis. Electrospray produced isolated PSL particles most suited for use in experiments involving exposure to non-aggregated nanoparticles. Though producing the largest cluster size, ultrasonic generation proved to be a relatively straightforward process for reproducibly generating nanoparticle aggregates. Further advantages and disadvantages of each method are presented in relation to future toxicology experiments.

Authors:
 [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Center for Nanophase Materials Sciences
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
931967
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nanotoxicology; Journal Volume: 1; Journal Issue: 2
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; AEROSOLS; ATOMIZATION; LATEX; MORPHOLOGY; POLYSTYRENE; SYNTHESIS; NANOSTRUCTURES; COLLOIDS

Citation Formats

Mahurin, Shannon Mark, and Cheng, Mengdawn. Generating nanoscale aggregates from colloidal nanoparticles by various aerosol spray techniques. United States: N. p., 2007. Web. doi:10.1080/17435390701423760.
Mahurin, Shannon Mark, & Cheng, Mengdawn. Generating nanoscale aggregates from colloidal nanoparticles by various aerosol spray techniques. United States. doi:10.1080/17435390701423760.
Mahurin, Shannon Mark, and Cheng, Mengdawn. Mon . "Generating nanoscale aggregates from colloidal nanoparticles by various aerosol spray techniques". United States. doi:10.1080/17435390701423760.
@article{osti_931967,
title = {Generating nanoscale aggregates from colloidal nanoparticles by various aerosol spray techniques},
author = {Mahurin, Shannon Mark and Cheng, Mengdawn},
abstractNote = {Growing interest in the environmental and health effects of engineered nanostructured materials requires accurate control of cluster morphology and size in order to make valid interpretations of nanomaterial toxicity. We report the comparison of three methods for the generation of aggregated uniform polystyrene latex (PSL) nanospheres from a colloidal suspension. Atomization, ultrasonic generation and electrospray, which utilize distinct mechanisms for the formation of liquid droplets from a PSL colloidal suspension, are explored as potential methods for nanostructured material synthesis. Electrospray produced isolated PSL particles most suited for use in experiments involving exposure to non-aggregated nanoparticles. Though producing the largest cluster size, ultrasonic generation proved to be a relatively straightforward process for reproducibly generating nanoparticle aggregates. Further advantages and disadvantages of each method are presented in relation to future toxicology experiments.},
doi = {10.1080/17435390701423760},
journal = {Nanotoxicology},
number = 2,
volume = 1,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}