Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Duke University uses Nanoparticle Tracking Analysis to characterize "nanoconstructs" for biomedical applications

Professor Tuan Vo-Dinh discusses results from his NanoSight NS500
with Dr Hsiangkuo Yuan from his research group.
Professor Tuan Vo-Dinh discusses results from his NanoSight NS500 with Dr Hsiangkuo Yuan from his research group.

Abstract:
NanoSight, leading manufacturers of unique nanoparticle characterization technology, reports on the work of Professor Tuan Vo-Dinh's group at Duke University where they apply Nanoparticle Tracking Analysis (NTA) to characterize metal nanoparticle construct materials for use in biosensing, imaging and cancer therapy.

Duke University uses Nanoparticle Tracking Analysis to characterize "nanoconstructs" for biomedical applications

Salisbury, UK | Posted on April 19th, 2012

The Vo-Dinh Lab is a part of the Departments of Biomedical Engineering and Chemistry of Duke University. The Vo-Dinh Lab is also a part of the Fitzpatrick Institute for Photonics, of which Professor Vo-Dinh is the director.

The main research goal of the group is to develop advanced techniques and methods to protect the environment (environmental sensors) and improve human health (medical diagnostics and therapy). As a part of these research goals, Dr Hsiangkuo Yuan and other members of Professor Vo-Dinh's group design and fabricate metal nanoparticle constructs such as gold nanostar platforms. These are characterized with UV-VIS, TEM, Raman microscope, fluorometers and other techniques. However, to design nanoconstructs for in vivo applications, the particle size needs to be in the range from 10 to 100 nm for lower clearance from the kidney and reticuloendothelial system (RES). It is important that the construct is in the right size range and is physiologically stable (non-aggregated) for biomedical applications in, for example, optical imaging or nanodrug delivery where it is also critical that the nanoparticle dose administered can be determined. To compare plasmonic properties, i.e. the enhanced electromagnetic properties of nanoparticles, they need to determine the effect of different sizes and to understand in detail the profile of the particle size distribution of similar concentrations which can be obtained using NanoSight's NTA system.

Prior to NTA, the group mostly used TEM to look at particle shape and measure particle size. The surface coating or the aggregation state cannot be easily investigated using just TEM. NanoSight provides a significant complementary role on providing hydrodynamic size distribution and zeta potential. Moreover, because NanoSight gives the concentration information, it allows them to normalize their comparison by individual particle counting which was quite difficult to obtain previously.

Commenting on the benefits of using the NanoSight alongside TEM (for size) and atomic absorption spectroscopy (for mass), Professor Vo-Dinh said the ability to make characterization particle by particle provides complementary information to the ensemble characterization (e.g. DLS). The group have published nanoconstruct data, specifically gold nanostars, in the journal, Nanotechnology, with another paper currently in press, Nanomedicine. They report the determination of particle hydrodynamic size distribution, zeta potential and concentration using NTA.

To find out about the company and to learn more about particle characterization using NanoSight's unique nanoparticle tracking analysis solutions, visit www.nanosight.com and register to receive the next issue of NanoTrail, the company's electronic newsletter.

####

About NanoSight
NanoSight delivers the world's most versatile and proven multi-parameter nanoparticle analysis in a single instrument.

NanoSight's "Nanoparticle Tracking Analysis" (NTA) detects and visualizes populations of nanoparticles in liquids down to 10 nm, dependent on material, and measures the size of each particle from direct observations of diffusion. Additionally, NanoSight measures concentration and a fluorescence mode differentiates suitably-labelled particles within complex background suspensions. Zeta potential measurements assess the surface charge on particles. NTA's particle-by-particle methodology goes beyond traditional light scattering and other ensemble techniques in providing high-resolution particle size distributions and validates data with information-rich video files of the particles moving under Brownian motion.

NanoSight's simultaneous multiparameter characterization matches the demands of complex biological systems, hence its wide application in development of drug delivery systems, of viral vaccines, and in nanotoxicology. This real-time data gives insight into the kinetics of protein aggregation and other time-dependent phenomena in a qualitative and quantitative manner. NanoSight has a growing role in biodiagnostics, being proven in detection and speciation of nanovesicles (exosomes) and microvesicles.

NanoSight has installed more than 450 systems worldwide with users including BASF, GlaxoSmithKline, Merck, Novartis, Pfizer, Proctor and Gamble, Roche and Unilever together with the most eminent universities and research institutes. NanoSight's technology is validated by 400+ third party papers citing NanoSight results, consolidating NanoSight's leadership position in nanoparticle characterization. For more information, visit www.nanosight.com

For more information, please click here

Contacts:
NanoSight Limited
Minton Park
London Road
Amesbury SP4 7RT UK
T +44(0)1980 676060
F +44(0)1980 624703


Talking Science Limited
39 de Bohun Court
Saffron Walden
Essex CB10 2BA UK
T +44(0)1799 521881
M +44(0)7843 012997
www.talking-science.com

Copyright © NanoSight

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Rice U. chemists create 3-D printed graphene foam June 22nd, 2017

Tiny bubbles provide tremendous propulsion in new microparticles research-Ben-Gurion U. June 21st, 2017

Enhanced photocatalytic activity by Cu2O nanoparticles integrated H2Ti3O7 nanotubes June 21st, 2017

Researchers developed nanoparticle based contrast agent for dual modal imaging of cancer June 21st, 2017

Letiís Autonomous-Vehicle System Embedded in Infineonís AURIX Platform: Letiís Low-Power, Multi-Sensor System that Transforms Distance Data into Clear Information About the Driving Environment Will Be Demonstrated at ITS Meeting in Strasbourg, June 19-22 June 20th, 2017

Imaging

Researchers developed nanoparticle based contrast agent for dual modal imaging of cancer June 21st, 2017

Cambridge Nanotherm partners with Inabata for global sales and distribution June 20th, 2017

Nanomedicine

Researchers developed nanoparticle based contrast agent for dual modal imaging of cancer June 21st, 2017

Learning with light: New system allows optical ďdeep learningĒ: Neural networks could be implemented more quickly using new photonic technology June 12th, 2017

Mussels add muscle to biocompatible fibers: Rice University chemists develop hydrogel strings using compound found in sea creatures June 9th, 2017

Making vessels leaky on demand could aid drug delivery:Rice University scientists use magnets and nanoparticles to open, close gaps in blood vessels June 8th, 2017

Sensors

Letiís Autonomous-Vehicle System Embedded in Infineonís AURIX Platform: Letiís Low-Power, Multi-Sensor System that Transforms Distance Data into Clear Information About the Driving Environment Will Be Demonstrated at ITS Meeting in Strasbourg, June 19-22 June 20th, 2017

New diode features optically controlled capacitance: Israeli researchers have developed a new optically tunable capacitor with embedded metal nanoparticles, creating a metal-insulator-semiconductor diode that is tunable by illumination. June 8th, 2017

Graphene and quantum dots put in motion a CMOS-integrated camera that can see the invisible May 29th, 2017

Ag/ZnO-Nanorods Schottky diodes based UV-PDs are fabricated and tested May 26th, 2017

Announcements

Rice U. chemists create 3-D printed graphene foam June 22nd, 2017

Tiny bubbles provide tremendous propulsion in new microparticles research-Ben-Gurion U. June 21st, 2017

Enhanced photocatalytic activity by Cu2O nanoparticles integrated H2Ti3O7 nanotubes June 21st, 2017

Researchers developed nanoparticle based contrast agent for dual modal imaging of cancer June 21st, 2017

Tools

Researchers developed nanoparticle based contrast agent for dual modal imaging of cancer June 21st, 2017

Oxford Instruments congratulates Lancaster University for inaugurating the IsoLab, built for studying quantum systems June 20th, 2017

Changing the color of laser light on the femtosecond time scale: How BiCoO3 achieves second harmonic generation June 14th, 2017

Leti Announces Two New Tools for Improving Transportation Comfort, Safety and Efficiency: Wearable Device Measures Stress Responses for Travelers, Pilots and Truck Drivers, While Smartphone App Provides Transit Agencies Broad Data on Transport Modes June 13th, 2017

New-Contracts/Sales/Customers

Park Systems Introduces Park NX12 for Unsurpassed Affordable High Resolution NanoScale Imaging Required for Advanced Analytical Chemistry, Materials Research, and Multi-User Facility June 5th, 2017

UnitySC Announces Wafer Thinning Inspection System; Win from Power Semiconductor IDM for Automotive: Leading IDM Selects New 4See Series Automated Defect Inspection Platform for Power Semiconductor Automotive Applications May 11th, 2017

JPK selects compact tensile stage from Deben for their NanoWizardģ AFM platform to broaden capabilities for materials characterisation February 22nd, 2017

Cetim Facility Receives Bruker Contour CMM Dimensional Analysis System: New Optical Coordinate Measurement Technology Enables High-Precision 3D Scanning November 16th, 2016

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project