 10th September 2008 NanoSight Technology
|
10th September 2008 NanoSight Technology
|
|
Particle
and Surface Sciences are pleased to announce the launch of NanoSight
Technology. NanoSight will
provide a new range of products to enhance and broaden the range of
particle characterization systems already offered by Particle and
Surface Sciences Australia. NanoSight
provides a unique technology to visualise and size nano-scale particles
in liquid down to 10 nm with little preparation and at low cost. Based
on a fundamental understanding of existing particle sizing techniques,
the NanoSight technology has been developed into a unique and exciting
instrument for nanoparticle sizing, available as both a research
instrument and in a bench-top format. The
Nanoparticle Tracking Analysis (NTA) technique is based on laser light
scattering microscopy. The instruments can visualise and dynamically
size populations of particles in a liquid on an individual basis in the
particle size range of 10 nm – 1000 nm (dependent on material). The
Brownian motion of each and every particle (which appear as point
scatterers) is tracked separately but simultaneously using a CCD camera,
from which a high-resolution plot of the particle size distribution
profile (and changes therein in time) is obtained. This
particle-by-particle approach avoids the averaging assumptions of Photon
Correlation Spectroscopy (PCS, also known as Dynamic Light Scattering,
DLS) and provides a unique image, going beyond PCS in assessing
polydisperse systems. The technique uniquely allows the user a simple
and direct qualitative view of the sample under analysis (perhaps to
validate data obtained from other techniques such as PCS) and from which
an independent quantitative estimation of sample size, size distribution
and concentration can be immediately obtained. Sample pre-treatment is
minimal, requiring only dilution with a suitable solvent to an
acceptable concentration range (between 108
and
109
particles
per ml depending on sample type). All particle types can be measured and
in any solvent type providing that the particles scatter sufficient
light to be visible (i.e. are not index matched). The NanoSight NTA technique represents an attractive alternative or complement to higher cost and more established methods of nanoparticle analysis such as photon correlation spectroscopy or electron microscopy that are currently employed in a wide range of technical and scientific sectors. Particle
& Surface Sciences (www.pss.aus.net)
also offer a wide-ranging programme of support solutions, including
installation and service of all instruments by factory-trained
technicians, an Analytical Laboratory and a Sales Department to assist
with your enquiries. PsS™ will be running a series of seminars across Australia
during the month of February 2009.
Please visit the PsS™ website for more information on the
locations.
Head Office : Ph:
+61 02 4323 7822 Email
: info@pss.aus.net |
