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Chemical Call-in/Nanotechnology

DTSC and Nanotechnology

Nanotechnology is a science that promises breakthroughs in all kinds of areas. We are already seeing it in stain resistant clothes, stronger materials and even in makeup. DTSC is working to make sure that Nanotechnology is safe for our health and the environment, that industry and government build strong partnerships, that the consumers get product information and that the benefits of Green chemistry will be incorporated.

Why is DTSC interested in nanotechnology?

DTSC sees nanotechnology as the new “plastic” because it will show up in many industrial applications and consumer products. Materials and devices designed at the nanoscale level are being used or considered for use in applications as diverse as cancer treatment to scratch-resistance automotive coatings. Because of the unique properties of nanomaterials, DTSC sees a need to understand this industrial sector and its products by:

  • gathering information on nanotechnology,
  • monitoring the efforts of other regulatory agencies about this emerging technology,
  • working with this emerging industrial sector to incorporate the benefits of “green chemistry” approaches, pollution prevention techniques, and sustainable manufacturing strategies to prevent potential adverse public health and environmental consequences,
  • working toward a partnership with this industrial sector to develop an industrial ecology of manufacturing to product stewardship approach that will protect public health and the environment, and
  • continuing to explore the merits of pro-active industrial initiatives and traditional governmental regulatory approaches.

Related Websites

Federal Programs

State Programs


Research Facilities

Non-Profit Organizations/Professional Societies

Standard Development Organizations

International Organizations

  • Nanotechnology Portal Nanowerk (opens new window)
  • United Kingdom Institute of Occupational Medicine (IOM) SAFENANO Initiative (opens new window)


Educational Sources

Sponsored Forums

Public Workshop on State and Federal Nanomaterial Activities

The Department of Toxic Substances Control and the U.S. Environmental Protection Agency (U.S. EPA) sponsored a public workshop on September 22, 2010 in San Francisco. The purpose of the workshop was to discuss:

  1. the results of the state’s carbon nanotube information call-in,
  2. future data call-in requests for additional nanomaterials, and
  3. federal efforts related to carbon nanotubes for nanomaterials.
Conference Call Presentation: Nanoscale titanium dioxide and organic sunscreens

On March 8, 2010, DTSC and U.S. EPA staff participated in a conference call hosted by the BASF, Evonik, Dupont and Pennsylvania Bio Nano Systems, LLC.  The call was designed to educate DTSC and U.S. EPA staff on specific aspects of titanium dioxide (TiO2) and organic sunscreens that included:

The presentation material can be downloaded off the agenda or from the embedded links in the bullets above.

Responding to DTSC’s Data Call-in for Carbon Nanotubes

DTSC participated in a webinar hosted by McKenna, Long, & Aldrich, LLP on December 3, 2009 for the Carbon Nanotube Coalition.  The following handouts are available for viewing:

Symposium #5
California Nanotechnology Initiative Symposium V: An Industry Perspective

The California Nano Industry Network, a network of corporations and State and national trade associations, and DTSC hosted a full-day symposium on Monday, November 16, 2009 in Sacramento, CA. Links to the speakers’ presentations can be found on the agenda. Video will be posted in the future.

Symposium #4
Nanotechnology IV Symposium:  Nanotechnology for Environmental Cleanup and Pollution Control Science, Implementation, and Regulatory Issues

The Groundwater Resources Association of California (GRA) hosted an all-day symposium on November 3, 2009, in Burlingame, CA.  The Department of Toxic Substances Control and AMEC Geomatrix, Inc. were co-sponsors of this event.  The Symposium was a forum for leading nanotechnology researchers, practitioners, and policy and regulatory experts to share and express the latest research findings, case studies, and regulatory issues of nanotechnology. The focus of the Symposium was on the application of nanotechnology for groundwater remediation, surface water treatment, and pollution control.

Symposium #3
DTSC Nanotechnology III Symposium, “NanoRegulation – Anticipating the Smallest Threats and the Largest Opportunities”

DTSC and the University of California Toxics Research & Teaching Program hosted a full-day nanotechnology symposium on March 19, 2009 at the Cal/EPA Headquarters Building in Sacramento.

Symposium #2
DTSC Nanotechnology Symposium II, “Potential Hazards of Nanoparticles in the Environment

DTSC hosted a free public, all-day nanotechnology symposium on October 3, 2007 in Sacramento.

Symposium #1
Nanotechnology Symposium

DTSC hosted a free, public half-day nanotechnology symposium on March 8, 2007 in Sacramento.

Chemical Information Call-in: Round One

Carbon Nanotubes

For the first call-in, DTSC requested information about carbon nanotubes (also known as “CNT”).  DTSC searched scientific literature and publicly available data sources, hosted a roundtable discussion, and participated in a webinar as part of the call-in process for obtaining information about carbon nanotubes.

DTSC sent a formal request letter on January 22, 2009, to 26 companies which were identified as producers or importers of carbon nanotubes in or to California.  The letter required manufacturers and importers to submit their responses within one year.  DTSC sent a follow-up letter on February 16, 2010, to remind companies that had not yet responded.  The Round One carbon nanotube responses were:

Company (Alphabetical Order)


Ahwahnee Technology

Business Closed

American Elements

September 14, 2009

Apex Nanomaterials

Business Closed

Bayer MaterialSciences, LLC.

January 20, 2010

Carbon Solutions, Inc.

January, 21 2010

Carbolex, Inc.

Business Closed

California Institute of Technology

January 20, 2010

California State University (CSU) System

September 14, 2009

Cheap Tubes

March 1, 2010

Cnano Technology, Limited

January 18, 2010

ELORET Corporation

March 8, 2010

Graphene Solutions

Not Applicable
June 17, 2010

Lawrence Berkeley National Laboratory (LBNL)

January 11, 2010

Lawrence Livermore National Laboratory (LLNL)

March 25, 2010

Molecular Nanosystems, Inc.

December 22, 2009


February 16, 2010

NASA Ames Research Center

January 26, 2010

San Jose State University

June 17, 2009

Santa Clara University

March 8, 2010

Stanford Materials, Inc.

January 27, 2010

Stanford University

December 23, 2009

Sun Innovations (formerly Sun Nano)

December 23, 2009

University of Affiliated Reseach Center UARC/NASA Ames

March 4, 2010

Unidym, Inc.

January 21, 2010

University of California (UC)

January19, 2010

University of Southern California (USC)

January13, 2010

Chemical Information Call-in: Round Two

Quantum Dots, Nano Metals, and Nano Metal Oxides

For the second call-in, DTSC requested information about six chemical substances: quantum dots, nano silver, nano zero valent iron, nano cerium oxide, nano titanium dioxide, and nano zinc oxide. DTSC searched scientific literature and publicly available data sources, hosted a public workshop, and met with various manufacturers, importers, researchers, and others as part of the call-in process for obtaining information about these chemical substances.

DTSC sent formal request letters on December 21, 2010, and January 4, 2011, to 45 entities which were identified as producers or importers of one or more of the six chemical substances in or to California. These letters required manufacturers and importers to submit their responses within one year. DTSC sent a follow-up letters to remind companies that had not yet responded. The Round Two responses for quantum dots, nano metals, and nano metal oxides were:

(in alphabetical order)


AMEC Geomatrix, Inc.

October 27, 2011

APS Laboratory

December 21, 2011

BASF Corporation

November 29, 2011


December 23, 2011

Cambrios Technologies Corp.

December 20, 2011


December 27, 2011

Chemat Technology, Inc.

No response.

Croda, Inc.

January 24, 2012

California State University (System-wide)

December 19, 2011

California Institute of Technology

December 23, 2011

G24 Innovation

USPS undeliverable—business closed.

Green Millennium

No response.

Hepure Technologies

No response.


No response.

Intelligent Optical Systems, Inc.

No response.

Intrinsiq Materials, Inc.

No response.

InVisage Technologies

December 21, 2011

Ishihara Corporation (USA)

November 21, 2011

Kovio, Inc.

No response.

Lawrence Livermore National Laboratory

November 23, 2011

Life Technologies, Inc.

December 17, 2011

Maxim Integrated Products, Inc.

No response.

MTI Corporation

No response.


No response.


Not applicable.  November 9, 2011


December 3, 2011


USPS undeliverable.

Philips Lumileds Lighting Company

No response.


Not applicable.  November 21, 2011

PRIMA Environmental, Inc.

No response,

QDSoleil, Inc.

See Nanosys.

Quantum Sphere, Inc.

No response.

Sandia California National Laboratory

Not applicable.  December 14, 2011

Samsung Semiconductor

Not applicable. November 11, 2011

Seashell Technology

No response.


Not applicable.  January 21, 2011

Shrink Technologies

December 28, 2010

Solyndra, Inc.

No response.

Stanford Materials Corporation

No response.

Stanford University

December 16, 2011

Stion Corporation

Not applicable.  November 7, 2011

Sun Innovations (Sun Nano)

No response.

Toshiba America Electronics

No response.

University of California (System-wide)

January 6, 2012

University of Southern California

November 16, 2011

Partnerships & Collaborations

DTSC – California Department of Pesticide Regulation

DTSC and the California Department of Pesticide Regulation (DPR) (opens new window) are collaborating on nanoscale silver (nanosilver). The two Cal/EPA departments formed a Memorandum of Understanding in 2010 to work together on nano silver, which is used in products and applications ranging from agricultural pesticides to anti-microbial food containers, appliances, and clothing.