Justin Galloway, a graduate member of
the Searson and Devreotes Group at The Johns Hopkins University in the
Institute of NanoBioTechnology (Maryland, USA), cites Malvern Instruments
customer support as being instrumental in helping interpret and
develop some of the data associated with the publication of a paper in the journal Nanomedicine.
Mr Galloway elected to use a Zetasizer
Nano from Malvern to collect size and zeta potential data for quantum dot (QD)
studies and found Malvern extremely supportive in responding to his enquiries
about the most appropriate methodologies and analytical techniques for getting
the most from his biomedical nanoparticle characterization data.
Justin Galloway said, "When Johns
Hopkins' Department of Materials Science and Engineering had the opportunity to
get a light scattering instrument we looked at several. Malvern always gives us
what we need, the price is right and the Zetasizer is easy to use as a
beginner. However, I wanted to find out even more about how to get as much
information from my results as I could so I contacted the Product
Marketing Specialist
."
"I was really surprised how much time
he was willing to spend with me. After discussing my work with him, both by
phone and in person, I became confident in how to best present my data. His
help was instrumental in getting my work published," explained Mr Galloway.
‘Quantitative characterization of the
lipid encapsulation of quantum dots for biomedical applications', by Justin F.
Galloway, B S
et al, was published in
Nanomedicine in December 2011. The authors report on the water solubilization
of quantum dots using lipid encapsulation. Particle size distributions and zeta
potential, used to determine stability and surface functionalization and for
final product quality control, were obtained using a Zetasizer Nano.
Further information about the work of
the Searson and Devreotes Group at The Johns Hopkins Institute for NanoBioTechnology
can be found at:
http://materials.jhu.edu
Malvern's Zetasizer series measures: particle and molecule size
from below a nanometer to several microns using dynamic light scattering; zeta
potential and electrophoretic mobility using electrophoretic light scattering;
and molecular weight using static light scattering. Further information can be
found at:
www.malvern.com/zetasizer
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