Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International



Home > Press > Nylon cooking bags, plastic-lined cups can release nanoparticles into liquids

Abstract:
Nylon cooking bags and plastic-lined cardboard cups are conveniences many people rely on, but a new study in ACS’ Environmental Science & Technology suggests that they are an underappreciated source of nanoparticles. They report that the plastic in these products release trillions of nanometer-sized particles into each liter of water that they come in contact with. That sounds like a lot, but the team notes that these levels are under the regulatory limits for consumption.

Nylon cooking bags, plastic-lined cups can release nanoparticles into liquids

Washington, DC | Posted on April 22nd, 2022

Food-grade plastics come into contact with a variety of foods and drinks that people consume every day. For instance, nylon cooking bags help keep food moist in the oven and make clean-up easier for slow cookers. Likewise, plastic-lined paper cups are designed to keep liquids hot and prevent them from leaking out. Previous studies have shown that some plastic materials, including polypropylene baby bottles and polyethylene terephthalate tea bags, can shed microscopic and nanoscale particles into heated liquids, though the human health implications of ingesting these particles are unclear. So, Christopher Zangmeister and colleagues wanted to see whether food-grade plastic films can also be a source of small plastic particles.

The researchers poured room temperature or hot water into nylon slow cooker bags and low density polyethylene-lined cardboard cups from different retailers. After keeping the slow cooker hot for an hour, the researchers found that 35 trillion plastic nanoparticles leached into the liter of water in each bag. When the team put hot liquid in 12-fluid-ounce cups for 20 minutes, 5.1 trillion plastic nanoparticles per liter leached out. Both materials released considerably fewer nanosized particles into room temperature water. Finally, the researchers calculated that a person would have to drink 13 cups of hot water from a plastic-lined cup or half a liter of water from the cooking bag to consume the equivalent of one nanoplastic particle for every seven cells in a person’s body. But they also note that the number of particles that migrated from the food-grade plastics into both the room temperature and hot water are still well below the levels for safe human consumption, according to U.S. Food and Drug Administration limits.

The authors received funding from the U.S. National Institute of Standards and Technology.

####

About American Chemical Society
The American Chemical Society (ACS) is a nonprofit organization chartered by the U.S. Congress. ACS’ mission is to advance the broader chemistry enterprise and its practitioners for the benefit of Earth and all its people. The Society is a global leader in promoting excellence in science education and providing access to chemistry-related information and research through its multiple research solutions, peer-reviewed journals, scientific conferences, eBooks and weekly news periodical Chemical & Engineering News. ACS journals are among the most cited, most trusted and most read within the scientific literature; however, ACS itself does not conduct chemical research. As a leader in scientific information solutions, its CAS division partners with global innovators to accelerate breakthroughs by curating, connecting and analyzing the world’s scientific knowledge. ACS’ main offices are in Washington, D.C., and Columbus, Ohio.

To automatically receive news releases from the American Chemical Society, contact

For more information, please click here

Contacts:
Katie Cottingham
American Chemical Society

Office: 301-775-8455

Copyright © American Chemical Society

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 TITLE

Related News Press

News and information

Two opposing approaches could give lithium-sulfur batteries a leg up over lithium-ion July 1st, 2022

Robot nose that can “smell” disease on your breath: Scientists develop diagnostic device for identifying compounds unique to particular diseases July 1st, 2022

Efficiently processing high-quality periodic nanostructures with ultrafast laser July 1st, 2022

Photonic synapses with low power consumption and high sensitivity are expected to integrate sensing-memory-preprocessing capabilities July 1st, 2022

Govt.-Legislation/Regulation/Funding/Policy

Solving the solar energy storage problem with rechargeable batteries that can convert and store energy at once June 24th, 2022

Boron nitride nanotube fibers get real: Rice lab creates first heat-tolerant, stable fibers from wet-spinning process June 24th, 2022

UBCO researchers change the game when it comes to activity tracking: Flexible, highly sensitive motion device created by extrusion printing June 17th, 2022

University of Illinois Chicago joins Brookhaven Lab's Quantum Center June 10th, 2022

Possible Futures

Technologies boost potential for carbon dioxide conversion to useful products: Researchers explore use metal-organic frameworks based catalysts for hydrogenation of carbon dioxide July 1st, 2022

Sieving carbons: Ideal anodes for high-energy sodium-ion batteries July 1st, 2022

An artificial intelligence probe help see tumor malignancy July 1st, 2022

Photon-controlled diode: an optoelectronic device with a new signal processing behavior July 1st, 2022

Discoveries

Technologies boost potential for carbon dioxide conversion to useful products: Researchers explore use metal-organic frameworks based catalysts for hydrogenation of carbon dioxide July 1st, 2022

Sieving carbons: Ideal anodes for high-energy sodium-ion batteries July 1st, 2022

Efficiently processing high-quality periodic nanostructures with ultrafast laser July 1st, 2022

Photonic synapses with low power consumption and high sensitivity are expected to integrate sensing-memory-preprocessing capabilities July 1st, 2022

Announcements

Two opposing approaches could give lithium-sulfur batteries a leg up over lithium-ion July 1st, 2022

Robot nose that can “smell” disease on your breath: Scientists develop diagnostic device for identifying compounds unique to particular diseases July 1st, 2022

Efficiently processing high-quality periodic nanostructures with ultrafast laser July 1st, 2022

Photonic synapses with low power consumption and high sensitivity are expected to integrate sensing-memory-preprocessing capabilities July 1st, 2022

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

Technologies boost potential for carbon dioxide conversion to useful products: Researchers explore use metal-organic frameworks based catalysts for hydrogenation of carbon dioxide July 1st, 2022

Sieving carbons: Ideal anodes for high-energy sodium-ion batteries July 1st, 2022

An artificial intelligence probe help see tumor malignancy July 1st, 2022

Photon-controlled diode: an optoelectronic device with a new signal processing behavior July 1st, 2022

Safety-Nanoparticles/Risk management

New protocol for assessing the safety of nanomaterials July 1st, 2022

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

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