Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Design, demonstration and performance of a versatile electrospray aerosol generator for nanomaterial research and applications.

Authors
Jennerjohn-N; Eiguren-Fernandez-A; Prikhodko-S; Fung-DC; Hirakawa-KS; Zavala-Mendez-JD; Hinds-W; Kennedy-NJ
Source
Nanotechnology 2010 Jun; 21(25):255603
NIOSHTIC No.
20037061
Abstract
Carbon nanotubes are difficult to aerosolize in a controlled manner. We present a method for generating aerosols not only of carbon nanotubes, but also of many reference and proprietary materials including quantum dots, diesel particulate matter, urban dust, and their mixtures, using electrospraying. This method can be used as a teaching tool, or as the starting point for advanced research, or to deliver nanomaterials in animal exposure studies. This electrospray system generates 180 microg of nanotubes per m(3) of carrier gas, and thus aerosolizes an occupationally relevant mass concentration of nanotubes. The efficiency achievable for single-walled carbon nanotubes is 9.4%. This system is simple and quick to construct using ordinary lab techniques and affordable materials. Since it is easy to replace soiled parts with clean ones, experiments on different types of nanomaterial can be performed back to back without contamination from previous experiments. In this paper, the design, fabrication, operation and characterization of our versatile electrospray method are presented. Also, the morphological changes that carbon nanotubes undergo as they make the transition from dry powders to aerosol particles are presented.
Keywords
Aerosol-particles; Aerosols; Airborne-fibers; Airborne-particles; Electrolytic-analysis; Electrolytic-refining; Laboratory-animals; Laboratory-techniques; Laboratory-testing; Microscopic-analysis; Nanotechnology; Particle-aerodynamics; Particulate-dust; Particulates
CODEN
NNOTER
CAS No.
7440-44-0
Publication Date
20100625
Document Type
Journal Article
Funding Type
Grant
Fiscal Year
2010
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-T42-OH-008412
Issue of Publication
25
ISSN
0957-4484
Source Name
Nanotechnology
State
CA
Performing Organization
University of California Los Angeles
TOP