Navigation Links
Environmental fate of nanoparticles depends on properties of water carrying them
Date:5/2/2008

The fate of carbon-based nanoparticles spilled into groundwater and the ability of municipal filtration systems to remove the nanoparticles from drinking water depend on subtle differences in the solution properties of the water carrying the particles, a new study has found.

In slightly salty water, for example, clusters of Carbon 60 (C60) would tend to adhere tightly to soil or filtration system particles. But where natural organic compounds or chemical surfactants serve as stabilizers in water, the C60 fullerene particles would tend to flow as easily as the water carrying them.

In some cases, the nanoparticles move very little and you would get complete retention in the soil, said Kurt Pennell, a professor in the School of Civil and Environmental Engineering at the Georgia Institute of Technology. But in different solution conditions or in the presence of a stabilizing agent, they can travel just like water. The movement of these nanoparticles is very sensitive to the solution conditions.

Research into the transport and retention of C60 nanoparticles was reported April 11 in the online version of the American Chemical Society journal Environmental Science and Technology and will be published later in the print edition. The research was funded by the U.S. Environmental Protection Agency.

Comparatively little research has been done on what happens to nanoparticles when they are released through accidental spills or when products containing them are discarded. Researchers want to know more about the environmental fate of nanoparticles to avoid creating problems like those of polychlorinated biphenyls (PCBs), in which the harmful effects of the compounds were discovered only after their use became widespread.

It will be difficult to control the waste stream, so these nanoparticles are likely to get everywhere, said Pennell. We want to figure out now what will happen to them and how toxic they will be in
'/>"/>

Contact: John Toon
jtoon@gatech.edu
404-894-6986
Georgia Institute of Technology Research News
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Stevens Center for Science Writings honors environmental critics with Green Book Award, April 30
2. Environmental enrichment can reduce cocaine use, researchers find
3. Outstanding undergraduates recognized in agronomy, crop, soil, and environmental sciences
4. Harold Mooney wins prestigious Tyler Prize for Environmental Achievement
5. Winners of 2008 Tyler Environmental Prize announced
6. Turtle studies suggest health risks from environmental contaminants
7. Strategy for nanotechnology-related environmental, health and safety research
8. Conservation strategies must shift with global environmental change, says CU-Boulder study
9. Environmental epigenetics has potential for preventing and treating disease
10. Pervasive environmental sensing a possibility
11. Environmental groups call for increased protection of coral reefs
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Environmental fate of nanoparticles depends on properties of water carrying them
(Date:9/17/2014)... State,s Institute for the Arts and Humanities has received ... for a two-year project, "The Boundaries of the Human ... project will support a wide-ranging series of events aimed ... humanities. One involves artists and researchers who are exploring ... the idea of humanism, and the other involves the ...
(Date:9/17/2014)... has developed, very cleverly, some lessons on how to ... said Joseph Shaw, director of the Optical Technology Center ... structures at the nanoscale, we,ll discover them." , Some ... August during a conference called "The Nature of Light: ... of the University of Arizona College of Optical Sciences. ...
(Date:9/17/2014)... A team of Spanish researchers have obtained the first ... a sixteenth century pig found at the site of ... that this ancient pig is closely related to today,s ... pigs were crossed with modern Iberian pigs. , The ... on evolutionary aspects of pig species, and particularly on ...
Breaking Biology News(10 mins):Mellon Foundation awards grant for major project in the humanities and sciences 2Nature's designs inspire research into new light-based technologies 2Nature's designs inspire research into new light-based technologies 3Iberian pig genome remains unchanged after 5 centuries 2
... mechanism has been discovered in a microorganism that thrives in ... key processes in human cells, and in a better understanding ... study is published today in the online version the American ... group at the Department of Molecular Evolution at Uppsala University ...
... innate defence system against deadly bacteria. However, how the step ... not yet known. To date, B. Pseudomallei, a ... can remain hidden in the human body for many years ... suddenly become activated and spread throughout the body, resulting in ...
... Measures to tackle the human impact on biodiversity ... countries working with common goals and frameworks. This ... European Science Foundation (ESF), which moved towards establishing ... and biodiversity analysis on the back of existing ...
Cached Biology News:New cell division mechanism discovered 2European biodiversity and ecosystem scientists merge and gear up for long-term research 2
(Date:9/17/2014)... 2014 Intarcia Therapeutics, Inc. today ... study of the cost and predictability of non-adherence in ... Annual Meeting of the European Association for the Study ... Christian Frois , Ph.D., of Analysis Group, Inc. presented ... Intarcia-sponsored, retrospective studies to characterize the prevalence of non-adherence ...
(Date:9/17/2014)... , Sept. 17, 2014 RXi ... biotechnology company focused on discovering, developing and commercializing ... RNA-targeted technologies, today announced that it has been granted ... Trademark Office on its unique delivery system for ... to phagocytic cells for the treatment of diseases ...
(Date:9/17/2014)... 2014 NASA’s MESSENGER has just celebrated ... is proud to have one of its latch valves, ... is a scientific investigation of the planet Mercury. It ... there, and has provided a vast amount of information ... of latch valves utilize solenoids that also include permanent ...
(Date:9/16/2014)... that can harvest energy from jaw movements has been ... It is hoped that the device can generate electricity ... of small-scale implantable or wearable electronic devices, such as ... devices. , The first results of the device,s performance ... journal Smart Materials and Structures . , Jaw ...
Breaking Biology Technology:Intarcia Reveals New Insights At EASD Meeting Characterizing The Burden Of Poor Control And Non-Adherence To Anti-Diabetic Therapies 2Intarcia Reveals New Insights At EASD Meeting Characterizing The Burden Of Poor Control And Non-Adherence To Anti-Diabetic Therapies 3Intarcia Reveals New Insights At EASD Meeting Characterizing The Burden Of Poor Control And Non-Adherence To Anti-Diabetic Therapies 4Intarcia Reveals New Insights At EASD Meeting Characterizing The Burden Of Poor Control And Non-Adherence To Anti-Diabetic Therapies 5RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 2RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 3RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 4'Smart material' chin strap harvests energy from chewing 2
... Gen-Probe Incorporated,(Nasdaq: GPRO ) announced today that the ... Conference on May 1, 2008 at,approximately 4:20 p.m. Eastern ... may be accessed through a link on the investors ... will be,available for 30 days following the event., ...
... Mass., April 24 Idenix,Pharmaceuticals, Inc. (Nasdaq: ... a corporate overview at the upcoming Morgan Stanley ... at 3:00 p.m.,ET at The Ritz Carlton in ... webcast of the company presentation can be,accessed under ...
... Commission Expected by Mid-2008, COLLEGEVILLE, Pa. ... Pharmaceuticals, a division of Wyeth (NYSE: ... PGNX ), today announced that the companies,have ... subcutaneous injection from the Committee for Medicinal ...
Cached Biology Technology:Gen-Probe to Webcast Presentation at Morgan Stanley Global Healthcare Unplugged Conference 2Wyeth and Progenics Receive Positive Opinion From European Committee for RELISTOR for the Treatment of Opioid-Induced Constipation in Advanced-Illness Patients 2Wyeth and Progenics Receive Positive Opinion From European Committee for RELISTOR for the Treatment of Opioid-Induced Constipation in Advanced-Illness Patients 3Wyeth and Progenics Receive Positive Opinion From European Committee for RELISTOR for the Treatment of Opioid-Induced Constipation in Advanced-Illness Patients 4Wyeth and Progenics Receive Positive Opinion From European Committee for RELISTOR for the Treatment of Opioid-Induced Constipation in Advanced-Illness Patients 5
... C1 Plus is a modular confocal system ... with an ultra-compact and lightweight design. The ... Plusboost optical performance to 400nm andits bi-directional ... support for X and Y scan axes ...
... integrated digital microscope and camera system that ... optical adjustment or software installation. Built on ... combines simplicity and advanced technology for users ... viewing of a macro image and a ...
... The TUNEL-based assay kit provides complete ... cells for convenient detection of DNA ... sections. The incorporation of BrdU in ... biotinylated or digoxigenylated methods. Results can ...
... The Fujifilm Life Science LAS-3000 ... technology with a simplified user interface, ... a wide range of modularities. The ... applications, and the perfect standard system ...
Biology Products: