Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Lomonosov Moscow State University are using Nanoparticle Tracking Analysis for environmental & biomedical nanoparticle monitoring

Vladimir Zyrin of the Faculty of Bioengineering & Bioinformatics used the NanoSight NS 500 in his diploma work on exosomes in human blood.
Vladimir Zyrin of the Faculty of Bioengineering & Bioinformatics used the NanoSight NS 500 in his diploma work on exosomes in human blood.

Abstract:
NanoSight reports on how Nanoparticle Tracking Analysis, NTA, is used in the work of Dr Ilya Kurochkin of Lomonosov Moscow State University in the development of new bioanalytical systems for environmental and biomedical monitoring.

Lomonosov Moscow State University are using Nanoparticle Tracking Analysis for environmental & biomedical nanoparticle monitoring

Salisbury, UK | Posted on January 15th, 2013

Ilya Kurochkin is Professor and Head of the Laboratory of Postgenomic Chemistry in the Department of Chemistry at the Lomonsov Moscow State University. His research requires characterization of size distribution, concentration and to identify the presence of certain epitopes in two areas: exosomes for the prediction of adverse outcomes in patients with chronic heart failure and for the characterization of gold, silver and metal oxide nanoparticles in the development of new electrochemical biosensors and nanobioanalytical systems based on nanoplasmonic structures.

The study of exosomes is central to the research program. The term "exosome" refers to vesicles generated by exocytosis of multivesicular bodies. Exosomes are 20 - 100 nm in diameter and can be found in the amniotic fluid, blood, breast milk, and urine. Key mechanisms by which exosomes may exert their biological functions on cells include (1) direct contact between surface molecules of vesicles and cells, (2) endocytosis of vesicles, and (3) vesicle-cell membrane fusion. Exosomes may horizontally transfer mRNA and miRNA. Horizontal transfer of oncogenic receptor and transfer of HIV particles have been demonstrated in the case of exosomes. Examples for key functions of exosomes include antigen presentation and immunostimulatory and inhibitory activities.

Exosomes can carry valuable information about the pathology of physiological processes in the human body and, in particular, on the development of cardiovascular diseases. Knowledge of the size distribution, protein and polynucleotide nature of exosomes in some physiological fluid will actually get a sort of human "exosome profile". The features of this "exosomal profile" will open the possibility to analyze details of physiological processes and obtain information about the initial stages of the pathology.

In the research, it is important to be able to make a quick calculation of the number and estimate the size distribution of the exosomes in the biological fluids. The use of plasmonic nanoparticles will allow multiplex analysis of a large number of target proteins in exosomes. These measurements provide information about a specific protein composition of exosomes, and thus make it the basis of a new nanobioanalytical platform - "human exosome profile".

To achieve this, Professor Kurochkin chose Nanoparticle Tracking Analysis, NTA, as his preferred technique as he needed accurate information on the size and number of his nanostructures in the presence of much larger particles. Prior to NTA, he used a combination of techniques including dynamic light scattering (DLS), atomic force microscopy (AFM) and electron microscopy. As he noted, "The main benefit of the NTA is the ability to accurately measure size distribution for nanostructures in the presence of much larger particles directly in test solutions. The fact that the intensity of light scattering is proportional to the particle diameter to the power of 6, DLS (which captures the signal from all the particles in the sample mixture) does not give an accurate measurement of a particle with a small diameter in the presence of particles with a larger diameter. NTA captures the trajectories of individual particles and therefore the ratio of the particle size does not affect the accuracy of the analysis. Thus, the fact that NTA measures each particle separately is very important. I am particularly excited that I can measure my exosomes with specific antigens using fluorescent tags and plasmonic nanomarkers (gold or silver nanoparticles). Using NTA perfectly overcame the earlier experimental problems of my work. Measurements are rapid and by counting particle by particle, I achieved the level of accuracy I was seeking."

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 are similarly particle-specific. It is this particle-by-particle methodology that takes NTA 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.

This 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 500 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 600+ third party papers citing NanoSight results. NanoSight's leadership position in nanoparticle characterization is consolidated further with publication of an ASTM International standard, ASTM E2834, which describes the NTA methodology for detection and analysis of nanoparticles.

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
www.nanosight.com


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

Princess Margaret scientists convert microbubbles to nanoparticles: Harnessing light to advance tumor imaging, provide platform for targeted treatment March 30th, 2015

Wrapping carbon nanotubes in polymers enhances their performance: Scientists at Japan's Kyushu University say polymer-wrapped carbon nanotubes hold much promise in biotechnology and energy applications March 30th, 2015

Tokyo Institute of Technology research: Catalyst redefines rate limitations in ammonia production March 30th, 2015

Next important step toward quantum computer: Scientists at the University of Bonn have succeeded in linking 2 different quantum systems March 30th, 2015

Academic/Education

LAMDAMAP 2015 hosted by the University March 26th, 2015

SUNY Poly & M+W Make Major Announcement: Major Expansion To Include M+W Owned Gehrlicher Solar America Corporation That Will Create up to 400 Jobs to Develop Solar Power Plants at SUNY Poly Sites Across New York State March 26th, 2015

SUNY POLY CNSE to Host First Ever Northeast Semi Supply Conference (NESCO) Conference Will Connect New and Emerging Innovators in the Northeastern US and Canada with Industry Leaders and Strategic Investors to Discuss Future Growth Opportunities in NYS March 25th, 2015

FEI Joins University of Ulm and CEOS on SALVE Project Research Collaboration: The Sub-Ångström Low Voltage Electron (SALVE) microscope should improve contrast and reduce damage on bio-molecules and two-dimensional nanomaterials, such as graphene March 18th, 2015

Nanomedicine

Princess Margaret scientists convert microbubbles to nanoparticles: Harnessing light to advance tumor imaging, provide platform for targeted treatment March 30th, 2015

Wrapping carbon nanotubes in polymers enhances their performance: Scientists at Japan's Kyushu University say polymer-wrapped carbon nanotubes hold much promise in biotechnology and energy applications March 30th, 2015

'Atomic chicken-wire' is key to faster DNA sequencing March 30th, 2015

Novel nanoparticle therapy promotes wound healing March 27th, 2015

Announcements

Princess Margaret scientists convert microbubbles to nanoparticles: Harnessing light to advance tumor imaging, provide platform for targeted treatment March 30th, 2015

Wrapping carbon nanotubes in polymers enhances their performance: Scientists at Japan's Kyushu University say polymer-wrapped carbon nanotubes hold much promise in biotechnology and energy applications March 30th, 2015

Tokyo Institute of Technology research: Catalyst redefines rate limitations in ammonia production March 30th, 2015

Next important step toward quantum computer: Scientists at the University of Bonn have succeeded in linking 2 different quantum systems March 30th, 2015

Tools

'Atomic chicken-wire' is key to faster DNA sequencing March 30th, 2015

LAMDAMAP 2015 hosted by the University March 26th, 2015

FEI Technology Award of the German Neuroscience Society Goes to Benjamin Judkewitz of the University of Berlin: Bi-annual award honors excellence in brain research during the German Neuroscience Society’s Annual Meeting, held 18-21 March 2015 March 26th, 2015

Square ice filling for a graphene sandwich March 26th, 2015

Environment

Young NTU Singapore spin-off clinches S$4.3 million joint venture with Chinese commercial giant March 23rd, 2015

New processing technology converts packing peanuts to battery components March 22nd, 2015

EU Funded PCATDES Project has completed its half-period with success March 19th, 2015

Are current water treatment methods sufficient to remove harmful engineered nanoparticle? March 10th, 2015

New-Contracts/Sales/Customers

Industrial Nanotech, Inc. Announces Next Large Order from the Oil and Gas Industry March 26th, 2015

United Nanotech Innovations Lists Materials for Trade on INSCX™ Exchange and Appoints Fullerex as Merchant February 17th, 2015

Virginia Tech Purchases Two Bruker Fluorescence Microscope Solutions: High-Speed Instruments Combine to Cover Wide Optical Resolution Range February 10th, 2015

Nano Labs Announces the Opportunity to Submit the POLEC Liquid Cement Product for Test Trials to Be Used in the Construction of the New International Airport of Mexico City (NAICM) February 2nd, 2015

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







© Copyright 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE