NDLI: Aggregation and sedimentation of magnetite nanoparticle clusters

Please wait, while we are loading the content...

The effects of rosette nanotubes with different functionalizations on channel catfish (Ictalurus punctatus) lymphocyte viability and receptor function

Environmental aging alters Al(OH)₃ coating of TiO₂ nanoparticles enhancing their photocatalytic and phototoxic activities

Silica matrix encapsulation as a strategy to control ROS production while preserving photoreactivity in nano-TiO₂

Non-invasive evaluation of cardiac repolarization in mice exposed to single-wall carbon nanotubes and ceria nanoparticles via intratracheal instillation

Chronic addition of a common engineered nanomaterial alters biomass, activity and composition of stream biofilm communities

Fluorescently labelled SiO₂ nanoparticles as tracers in natural waters: dependence of detection limits on environmental conditions

Incorporation of graphene oxide into a chitosan–poly(acrylic acid) porous polymer nanocomposite for enhanced lead adsorption

Fractal aggregation and disaggregation of newly formed iron(iii) (hydr)oxide nanoparticles in the presence of natural organic matter and arsenic

Environmental release of core–shell semiconductor nanocrystals from free-standing polymer nanocomposite films

Nitrogen-rich core/shell magnetic nanostructures for selective adsorption and separation of anionic dyes from aqueous solution

Back cover

Environmental Science: Nano Vol - 3 Issue - 2

Environmental Science: Nano Vol - 3 Issue - 1

Environmental Science: Nano Vol -2

Environmental Science: Nano Vol -1

Aggregation and sedimentation of magnetite nanoparticle clusters

Content Provider	Royal Society of Chemistry (RSC)
Author	Bottero, J. Y. Rose, J. Vikesland, P. J. Rebodos, R. L. Masion, A.
Copyright Year	2016
Abstract	Magnetite nanoparticles are redox active constituents of subsurface and corrosive environments. In this study, we characterized the aggregation and sedimentation behavior of well characterized magnetite nanoparticle clusters using dynamic light scattering (DLS), UV-vis-NIR spectroscopy, and small angle X-ray scattering (SAXS). Both unfunctionalized (NaOH-magnetite) and tetramethylammonium hydroxide (TMAOH-magnetite) surface functionalized nanoparticle clusters were employed. TMAOH-magnetite has a slightly smaller primary nanoparticle radius as determined by TEM (4 ± 0.7 nm vs. 5 ± 0.8 for NaOH-magnetite) and a smaller initial DLS determined cluster radius (<30 nm vs. 100–200 nm for NaOH-magnetite). Interestingly, in spite of its smaller initial nanoparticle cluster size, TMAOH-magnetite undergoes sedimentation more rapidly than NaOH-magnetite. This behavior is consistent with the more rapid aggregation of the smaller TMAOH-magnetite clusters as well as their lower fractal dimension, as determined by SAXS. This study illustrates that both nanoparticle cluster size and fractal dimension should be carefully considered when considering the environmental transport and fate of highly aggregated nanoparticles.
Starting Page	567
Ending Page	577
Page Count	11
File Format	HTM / HTML PDF
ISSN	20518153
Volume Number	3
Issue Number	3
Journal	Environmental Science: Nano
DOI	10.1039/c5en00155b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Subscribed
Subject Keyword	Magnetite Redox Nanoparticle Dynamic light scattering Spectroscopy Small-angle X-ray scattering Tetramethylammonium hydroxide Transmission electron microscopy Fractal dimension
Content Type	Text
Resource Type	Article
Subject	Environmental Science Materials Science

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

Characterization of iron–organic matter nano-aggregate networks through a combination of SAXS/SANS and XAS analyses: impact on As binding

ZnO nanocontainers: structural study and controlled release

Research highlights: elucidating the role of complex interactions affecting nanoparticle deposition

Laccase-mediated formation of mesoporous silica nanoparticle based redox stimuli-responsive hybrid nanogels as a multifunctional nanotheranostic agent

In situ small-angle X-ray scattering studies of sterically-stabilized diblock copolymer nanoparticles formed during polymerization-induced self-assembly in non-polar media

Polyoxometalate-stabilized, water dispersible Fe₂Pt magnetic nanoparticles

Towards traceable size determination of extracellular vesicles

Sonochemically-fabricated Ga@C-dots@Ga nanoparticle-aided neural growth

Structure of Low-Density Nanoporous Dielectrics Revealed by Low-Vacuum Electron Microscopy and Small-Angle X-ray Scattering

Aggregation and sedimentation of magnetite nanoparticle clusters

Similar Documents

Characterization of iron–organic matter nano-aggregate networks through a combination of SAXS/SANS and XAS analyses: impact on As binding

ZnO nanocontainers: structural study and controlled release

Research highlights: elucidating the role of complex interactions affecting nanoparticle deposition

Laccase-mediated formation of mesoporous silica nanoparticle based redox stimuli-responsive hybrid nanogels as a multifunctional nanotheranostic agent

In situ small-angle X-ray scattering studies of sterically-stabilized diblock copolymer nanoparticles formed during polymerization-induced self-assembly in non-polar media

Polyoxometalate-stabilized, water dispersible Fe2Pt magnetic nanoparticles

Towards traceable size determination of extracellular vesicles

Sonochemically-fabricated Ga@C-dots@Ga nanoparticle-aided neural growth

Structure of Low-Density Nanoporous Dielectrics Revealed by Low-Vacuum Electron Microscopy and Small-Angle X-ray Scattering

Aggregation and sedimentation of magnetite nanoparticle clusters

Polyoxometalate-stabilized, water dispersible Fe₂Pt magnetic nanoparticles