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Development of force and electron microscopy for the quantification of nanoparticle number concentration measurements

Prasad, Ashwini (2015)
Ph.D. thesis, University of Birmingham.

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Abstract

The development of metrological and analytical methods for the detection and quantification of nanomaterials (NMs) has been identified as one of the most urgent and important research priorities to advance nanotechnology. Several nanometrics such as mass, number and surface area are currently under scrutiny by nanotechnologists in order to identify the most appropriate metrics to express the hazard of NMs and therefore to perform risk assessments. Currently, NM mass concentration is almost universally used as a metric because of challenges with analytical measurements, while the mass concentration is measured by a analytical technique called inductive coupled plasma mass spectroscopy. For example, the mass concentration doesn't facilitate to quantify the NM aggregation but can be quantified by particle number measurement. The particle number concentration is an important metric in nanotechnology. However tools/methods capable of providing fully quantitative assessment of the number size distribution and number particle concentration are lacking and are urgently needed.

Type of Work:Ph.D. thesis.
Supervisor(s):Lead, Jamie R.
School/Faculty:Colleges (2008 onwards) > College of Life & Environmental Sciences
Department:School of Geography and Environmental Sciences
Additional Information:

M. Baalousha, A. Prasad, J.R. Lead (2014) Quantitative measurement of nanoparticle size and number concentration from liquid suspensions by atomic force microscopy. Environmental Science Process and Impacts. 16:6, Pages 1338-1347.
http://dx.doi.org/10.1039/C3EM00712J

A. Prasad, J.R. Lead, M. Baalousha (2015) An electron microscopy based method for the detection and quantification of nanomaterial number concentration in environmentally relevant media. Science of The Total Environment, Volume 537, Pages 479-486.
http://dx.doi.org/10.1016/j.scitotenv.2015.07.117


Subjects:GE Environmental Sciences
QC Physics
QD Chemistry
TA Engineering (General). Civil engineering (General)
TK Electrical engineering. Electronics Nuclear engineering
Institution:University of Birmingham
ID Code:6332
This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder.
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