Archives

August 16, 2023

UK Calls for Data on Nanomaterials in Cosmetics

On August 14, 2023, the United Kingdom’s (UK) Office for Product Safety and Standards (OPSS) called for the submission of any scientific information relevant to the safety assessment of nanomaterials used in cosmetics. Article 16 of the UK Cosmetics Regulation requires that cosmetic products containing nanomaterials be notified to the Secretary of State at least six months prior to being placed on the market. These notifications may be completed via the Submit Cosmetic Product Notification...
April 13, 2023

USDA Researchers Develop Natural, Washable, Antimicrobial Cleaning Wipes Using Nanocomposite Raw Cotton Fiber

The U.S. Department of Agriculture (USDA) announced on April 11, 2023, that its Agricultural Research Service (ARS) recently developed sustainable, machine-washable antimicrobial wipes that can be used at least 30 times for cleaning hard and nonporous surfaces. According to USDA, ARS researchers developed the antimicrobial wipes “by using raw cotton fiber that naturally produced silver nanoparticles inside the fiber in the presence of a silver precursor.” USDA states that the...
April 12, 2023

USDA Researchers Develop Natural, Washable, Antimicrobial Cleaning Wipes Using Nanocomposite Raw Cotton Fiber

The U.S. Department of Agriculture (USDA) announced on April 11, 2023, that its Agricultural Research Service (ARS) recently developed sustainable, machine-washable antimicrobial wipes that can be used at least 30 times for cleaning hard and nonporous surfaces. According to USDA, ARS researchers developed the antimicrobial wipes “by using raw cotton fiber that naturally produced silver nanoparticles inside the fiber in the presence of a silver precursor.” USDA states that the...
January 9, 2023

Registration Begins for NNI Webinar on EHS Implications of Metal Nanoparticles in Aquatic Environments

On February 1, 2023, the National Nanotechnology Initiative (NNI) will hold a webinar on the environmental, health, and safety (EHS) implications of metal nanoparticles in aquatic environments. According to NNI, the focus will be on copper and copper oxide, nickel, and silver nanoparticles. Each expert panelist will provide an overview on the current state of knowledge for a particular metal nanoparticle. The panelists will discuss methods used for identifying, measuring, and assessing the...
September 30, 2022

OECD Accepting Comment on Draft Study Report on Applicability of the Key Event Based TG 442D for In Vitro Skin Sensitisation Testing of Nanomaterials

.The Organization for Economic Cooperation and Development (OECD) has published for comment a draft study report entitled “Applicability of the key event based TG 442D for in vitro skin sensitisation testing of nanomaterials.” Switzerland conducted experimental work with selected nanomaterials using OECD Test Guideline (TG) 442D (KeratinoSensTM) and made a basic in vitro to in vivo correlation to outline the potential relevance of the results for prediction of skin sensitisation of...
September 14, 2022

EUON Publishes Nanopinion on the Transportation of Nanoparticles across the Blood-Brain Barrier

On September 13, 2022, the European Union (EU) Observatory for Nanomaterials (EUON) published a Nanopinion entitled “Can the Brain’s Gatekeeper Fight a Nano-Attack?” by Dr. Eugenia (Éva) Valsami-Jones, Professor of Environmental Nanoscience at the University of Birmingham, who co-authored an article entitled “Biotransformation modulates the penetration of metallic nanomaterials across an artificial blood–brain barrier model.” The researchers set out to explore systematically how...
August 1, 2022

NIOSH Publishes Technical Report on Occupational Exposure Sampling for Engineered Nanomaterials

On July 29, 2022, the National Institute for Occupational Safety and Health (NIOSH) published a Technical Report: Occupational Exposure Sampling for Engineered Nanomaterials. Since 2010, NIOSH has developed guidance for workplace sampling for three engineered nanomaterials: carbon nanotubes (CNT) and nanofiber (CNF), silver, and titanium dioxide, each of which has an elemental mass-based NIOSH recommended exposure limit (REL). NIOSH has also developed a practical approach to...
January 26, 2022

OECD Tour de Table Includes Update on Nano Developments in the United States

The Organization for Economic Cooperation and Development (OECD) has published the latest edition of the Developments in Delegations on the Safety of Manufactured Nanomaterials — Tour de Table. The Tour de Table compiles information provided by delegations on developments concerning the safety of manufactured nanomaterials. It includes the following information on developments in the United States....
September 10, 2021

SCHEER Questions Whether Draft EQSs for Silver and Its Compounds Should Address Silver Nanomaterials

On September 7, 2021, the European Commission (EC) Scientific Committee on Health, Environmental and Emerging Risks (SCHEER) posted a preliminary opinion on “Draft Environmental Quality Standards for Priority Substances under the Water Framework Directive” for silver and its compounds. The Water Framework Directive requires the EC to identify priority substances among those presenting significant risk to or via the aquatic environment and to set environmental quality standards (EQS) for...
August 13, 2021

EFSA Publishes Safety Assessment of Silver Nanoparticles Intended to Be Used in Plastics

The European Food Safety Authority (EFSA) published a Scientific Opinion entitled “Safety assessment of the substance silver nanoparticles for use in food contact materials.” The EFSA Panel on Food Contact Materials, Enzymes and Processing Aids (CEP) assessed the safety of the additive silver nanoparticles intended to be used in plastics. All the silver particles were in the size range of 1-100 nanometers (nm), with about 15 nm mean diameter and 99% by number of particles...
May 20, 2021

NIOSH CIB on Health Effect of Occupational Exposure to Silver Nanomaterials Includes REL for Silver Nanomaterials

The National Institute for Occupational Safety and Health (NIOSH) has published Current Intelligence Bulletin 70: Health Effects of Occupational Exposure to Silver Nanomaterials. According to the Current Intelligence Bulletin (CIB), NIOSH assessed potential health risk from exposure to silver nanomaterials by evaluating more than 100 studies of silver nanomaterials in animals or cells. The CIB states that recent studies in animals have demonstrated that biologic activity and potential...
January 12, 2021

SCCS Opinion on the Safety of Nanomaterials in Cosmetics Includes Prioritized List of Nanomaterials for Risk Assessment

On January 11, 2021, the European Commission’s (EC) Scientific Committee on Consumer Safety (SCCS) posted a final opinion entitled Scientific Advice on the Safety of Nanomaterials in Cosmetics.  The EC requested that SCCS determine the nanomaterials, as published in the 2019 catalogue of nanomaterials, for which specific concerns can be identified and justified to establish a priority list of nanomaterials for risk assessment (Article 16(4) Reg. 1223/2009).  The final opinion...
May 13, 2020

WHO Publishes Principles and Methods to Assess Risk of Immunotoxicity Associated with Exposure to Nanomaterials

On April 12, 2020, the World Health Organization (WHO) published Environmental Health Criteria 244:  Principles and methods to assess the risk of immunotoxicity associated with exposure to nanomaterials.  WHO states that the document presents an overview of the current knowledge and evidence on principles and basic mechanisms of immunotoxicity caused by engineered nanomaterials (ENM).  The document provides guidance on principles and methods for hazard and risk assessment of...
August 2, 2019

Nordic Council of Ministers Publishes Report on Applicability of GHS Classification Criteria to Nanomaterials

In May 2019, the Nordic Council of Ministers published a working paper entitled The applicability of the GHS classification criteria to nanomaterials.  The goal of the project was to review the applicability of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS) to manufactured nanomaterials, taking into account the progress of international scientific work.  The report notes that the Organization for Economic Cooperation and Development (OECD) Working...
January 23, 2019

ECHA Publishes Substance Evaluation Conclusion for Silver

The European Chemicals Agency (ECHA) announced on December 19, 2018, that it published several new substance evaluation conclusion documents, including one for silver.  Silver was added to the Community Rolling Action Plan (CoRAP) list in 2014 and evaluated by the Netherlands.  According to the substance evaluation conclusion and evaluation report, silver was originally selected for substance evaluation to clarify concerns about nanoparticles/ecotoxicity of different forms of the...
November 5, 2018

EC Committee Publishes Final Opinion on Colloidal Silver (Nano)

On October 26, 2018, the European Commission (EC) Scientific Committee on Consumer Safety (SCCS) published its final opinion on colloidal silver (nano).  According to the final opinion, the EC received 63 notifications of cosmetic products containing colloidal silver in nano form.  The final opinion states that, according to the applicants, the ingredient is used in nano uncoated form both in leave-on and rinse-off oral cosmetics products, including toothpastes and skin care products, with a...
September 19, 2018

NIOSH Publishes Revised Draft CIB on Health Effects of Occupational Exposure to Silver Nanomaterials, Will Hold Online Meeting

On September 18, 2018, the National Institute for Occupational Safety and Health (NIOSH) published a Federal Register notice announcing the availability of a draft document entitled Current Intelligence Bulletin:  Health Effects of Occupational Exposure to Silver Nanomaterials.  As reported in our January 22, 2016, blog item, NIOSH published a draft Current Intelligence Bulletin (CIB) on silver nanomaterials on January 21, 2016.  According to the...
September 21, 2011

SNWG Releases Statement Concerning Nanosilver

The Silver Nanotechnology Working Group (SNWG) recently prepared a statement concerning nanosilver and its long history of safe and regulated use. SNWG notes the similarities between nanosilver and other antimicrobial silver materials available in the marketplace.  SNWG states that it “has interacted with the [U.S. Environmental Protection Agency (EPA)] in challenged exchanges on how best to regulate nanopesticides leading to a clear, reasonable, and responsible path for...
May 24, 2011

SNWG Responds to BfR’s Statement Concerning Nanosilver

The Silver Nanotechnology Working Group (SNWG) prepared a May 2, 2011, statement regarding the German Federal Institute for Risk Assessment’s (BfR) April 12, 2011, statement concerning consumer products containing nanosilver. SNWG notes that, in December 2009, BfR published an opinion advising against the use of nanosilver in consumer products. Industry and other groups, including SNWG, asked BfR to reconsider its position, and BfR held a workshop on February 17,...
April 26, 2011

Scientists Investigate Behavior of Metallic Silver Nanoparticles in a Pilot Wastewater Treatment Plant

Environmental Science & Technology posted on April 5, 2011, an article entitled “Behavior of Metallic Silver Nanoparticles in a Pilot Wastewater Treatment Plant.” The abstract states: We investigated the behavior of metallic silver nanoparticles (Ag-NP) in a pilot wastewater treatment plant (WWTP) fed with municipal wastewater.  The treatment plant consisted of a nonaerated and an aerated tank and a secondary clarifier.  The average hydraulic retention time including...