NDLI: Dispersion stability of nanoparticles in ecotoxicological investigations: the need for adequate measurement tools

Content Provider	Springer Nature Link
Author	Tantra, Ratna Jing, Shingheng Pichaimuthu, Sivaraman K. Walker, Nicholas ble, James Hackley, Vincent A.
Copyright Year	2011
Abstract	One of the main challenges in nanoecotoxicological investigations is in the selection of the most suitable measurement methods and protocols for nanoparticle characterisation. Several parameters have been identified as being important as they govern nanotoxicological activity, with some parameters being better defined than others. For example, as a parameter, there is some ambiguity as to how to measure dispersion stability in the context of ecotoxicological investigations; indeed, there is disagreement over which are the best methods to measure nanoparticle dispersion stability. The purpose of this article is to use various commercially available tools to measure dispersion stability and to understand the information given by each tool. In this study, CeO$_{2}$ was dispersed in two different types of media: de-ionised water and electrolyte-containing fish medium. The DLS mean particle size of freshly dispersed sample in DI water was ~200 nm in diameter. A visual sedimentation experiment showed that nanoparticle dispersion made in the fish medium was less stable compared to corresponding dispersion in de-ionised water. Stability of these dispersions was monitored using various techniques, for a period of 3 days. Our findings have shown that dispersion stability can be suitably assessed by monitoring: (a) surface charge, (b) sedimentation events and (c) presence of agglomerates, through time. The majority of techniques employed here (zeta potential, particle size via DLS, fluorescence and UV–Vis spectroscopy and SEM) were shown to provide useful, complementary information on dispersion stability. Nanoparticle Tracking Analysis (NTA) provides useful, quantitative information on the concentration of nanoparticles in suspension, but is limited by its inability to accurately track the motion of large agglomerates found in the fish medium.
Starting Page	3765
Ending Page	3780
Page Count	16
File Format	PDF
ISSN	13880764
Journal	Journal of Nanoparticle Research
Volume Number	13
Issue Number	9
e-ISSN	1572896X
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-02-26
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nanoparticles Dispersions Nanomaterial characterisation Nanometrology Environmental and health effects Physical Chemistry Characterization and Evaluation of Materials Inorganic Chemistry Nanotechnology Optics, Optoelectronics, Plasmonics and Optical Devices
Content Type	Text
Resource Type	Article
Subject	Chemistry Nanoscience and Nanotechnology Atomic and Molecular Physics, and Optics Condensed Matter Physics Bioengineering Modeling and Simulation

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Colloidal stability of silver nanoparticles in biologically relevant conditions

Stability of aqueous silica nanoparticle dispersions

Dispersion stability and thermal conductivity of propylene glycol-based nanofluids

How reliably can a material be classified as a nanomaterial? Available particle-sizing techniques at work

Dispersions of silica nanoparticles in ionic liquids investigated with advanced rheology

Effect of silica nanoparticles on clay swelling and aqueous stability of nanoparticle dispersions

A simple and sensitive biosensor for rapid detection of nanoparticles in water

Radiochemical synthesis of $^{105g}$Ag-labelled silver nanoparticles

New sampling technique for collection of nanoparticles from liquids

Dispersion stability of nanoparticles in ecotoxicological investigations: the need for adequate measurement tools

Similar Documents

Colloidal stability of silver nanoparticles in biologically relevant conditions

Stability of aqueous silica nanoparticle dispersions

Dispersion stability and thermal conductivity of propylene glycol-based nanofluids

How reliably can a material be classified as a nanomaterial? Available particle-sizing techniques at work

Dispersions of silica nanoparticles in ionic liquids investigated with advanced rheology

Effect of silica nanoparticles on clay swelling and aqueous stability of nanoparticle dispersions

A simple and sensitive biosensor for rapid detection of nanoparticles in water

Radiochemical synthesis of $^{105g}$Ag-labelled silver nanoparticles

New sampling technique for collection of nanoparticles from liquids

Dispersion stability of nanoparticles in ecotoxicological investigations: the need for adequate measurement tools