Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International



Home > Press > Nanoparticles may have bigger impact on the environment than previously thought: Non-antibacterial nanoparticles can cause resistance in bacteria

Chemist Erin Carlson led research showing that nanoparticles can cause resistance in bacteria.

Credit: Patrick O'Leary, University of Minnesota
Chemist Erin Carlson led research showing that nanoparticles can cause resistance in bacteria. Credit: Patrick O'Leary, University of Minnesota

Abstract:
Over the last two decades, nanotechnology has improved many everyday products, from microelectronics to sunscreens. Nanoparticles (particles just a few hundred atoms in size) are ending up in the environment by the ton, but scientists are still unclear about the long-term effects of these super-small particles.

Nanoparticles may have bigger impact on the environment than previously thought: Non-antibacterial nanoparticles can cause resistance in bacteria

Alexandria, VA | Posted on October 17th, 2019

In a first-of-its-kind study, published in Chemical Science, researchers have shown that nanoparticles may have a bigger impact on the environment than previously thought.

Researchers at the University of Minnesota, through the National Science Foundation Center for Sustainable Nanotechnology, found that a common, non-disease-causing bacterium in the environment, Shewanella oneidensis MR-1, developed rapid resistance when repeatedly exposed to nanoparticles used in making lithium ion batteries, the rechargeable batteries used in portable electronics and electric vehicles. The resistance means that the fundamental biochemistry and biology of the bacteria are changing.

The results of the study are unusual, the researchers say. Bacterial resistance usually occurs because bacteria become resistant to attempts to kill them. In this case, the nanoparticles used in lithium ion batteries were not intended to kill bacteria. This is the first report of non-antibacterial nanoparticles causing resistance in bacteria.

Bacteria are prevalent in lakes and soil where there is a delicate balance of organisms. Other organisms feed on the microbes, and the resistant bacteria could have effects scientists can't yet predict.

"Research that advances technology and sustains our environment is a priority for the Division of Chemistry," said Michelle Bushey, program director for the NSF Chemical Centers for Innovation Program. "This work reveals the unexplored and long-term impacts some nanoparticles have on the living organisms around us. This discovery at the chemistry-biology interface is a first step toward developing new sustainable materials and practices and providing the groundwork for possible remediation approaches."

####

For more information, please click here

Contacts:
NSF Public Affairs, (703) 292-7090

Copyright © National Science Foundation

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 Links

Article:

Related News Press

News and information

Brought into line: FAU physicists control the flow of electron pulses through a nanostructure channel September 24th, 2021

Nanocellulose decorated with proteins is suitable for 3D cell culturing September 24th, 2021

Development of dendritic-network-implementable artificial neurofiber transistors: Transistors with a fibrous architecture similar to those of neurons are capable of forming artificial neural networks. Fibrous networks can be used in smart wearable devices and robots September 24th, 2021

Researchers use breakthrough method to answer key question about electron states September 24th, 2021

Govt.-Legislation/Regulation/Funding/Policy

UTA project aims to extend life of concrete, cement by adding nanoscale wood fibers: Wood fibers key to sustainable concrete, cement September 24th, 2021

A simple way to get complex semiconductors to assemble themselves: Much like crystallizing rock candy from sugar syrup, the new method grows 2D perovskites precisely layered with other 2D materials to produce crystals with a wide range of electronic properties September 17th, 2021

Scientists demonstrate pathway to forerunner of nanotubes that could lead to widespread industrial fabrication September 17th, 2021

Stretching the capacity of flexible energy storage September 10th, 2021

Possible Futures

Micro-scale opto-thermo-mechanical actuation in the dry adhesive regime Peer-Reviewed Publication September 24th, 2021

MXene-GaN van der Waals metal-semiconductor junctions for high performance photodetection September 24th, 2021

Nanocellulose decorated with proteins is suitable for 3D cell culturing September 24th, 2021

Development of dendritic-network-implementable artificial neurofiber transistors: Transistors with a fibrous architecture similar to those of neurons are capable of forming artificial neural networks. Fibrous networks can be used in smart wearable devices and robots September 24th, 2021

Discoveries

Fabricating MgB2 superconductors using spark plasma sintering and pulse magnetization: New research suggests that highly dense MgB2 bulks have improved mechanical and superconducting properties September 24th, 2021

Brought into line: FAU physicists control the flow of electron pulses through a nanostructure channel September 24th, 2021

Nanocellulose decorated with proteins is suitable for 3D cell culturing September 24th, 2021

Researchers use breakthrough method to answer key question about electron states September 24th, 2021

Announcements

Brought into line: FAU physicists control the flow of electron pulses through a nanostructure channel September 24th, 2021

Nanocellulose decorated with proteins is suitable for 3D cell culturing September 24th, 2021

Development of dendritic-network-implementable artificial neurofiber transistors: Transistors with a fibrous architecture similar to those of neurons are capable of forming artificial neural networks. Fibrous networks can be used in smart wearable devices and robots September 24th, 2021

Researchers use breakthrough method to answer key question about electron states September 24th, 2021

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters

Micro-scale opto-thermo-mechanical actuation in the dry adhesive regime Peer-Reviewed Publication September 24th, 2021

MXene-GaN van der Waals metal-semiconductor junctions for high performance photodetection September 24th, 2021

Fabricating MgB2 superconductors using spark plasma sintering and pulse magnetization: New research suggests that highly dense MgB2 bulks have improved mechanical and superconducting properties September 24th, 2021

Brought into line: FAU physicists control the flow of electron pulses through a nanostructure channel September 24th, 2021

Safety-Nanoparticles/Risk management

Good for groundwater bad for crops? Plastic particles release pollutants in upper soil layers: The environmental geoscientists at the Centre for Microbiology and Environmental Systems Science (CMESS) focused on a variety of parameters that contribute to plastic pollution in far September 17th, 2021

No nanoparticle risks to humans found in field tests of spray sunscreens December 2nd, 2020

Phytoplankton disturbed by nanoparticles: Due to its antibacterial properties, nanosilver is used in a wide range of products from textiles to cosmetics; but nanosilver if present at high concentrations also disrupts the metabolism of algae that are essential for the aquatic food November 27th, 2020

Study: Nanoparticles produced from burning coal result in damage to mice lungs, suggesting toxicity to humans February 5th, 2020

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




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project