nanoComposix is a world leading manufacturer of precisely engineered and highly characterized nanoparticles. Our mission is to help our customers bring nanotechnology enabled products to market. Our multi-disciplinary technical teams provide rapid prototyping, characterization, integration, and scale-up solutions to accelerate R&D and commercialization for a wide variety of application areas including biodiagnostics, topical therapeutics, nanomedicine, antimicrobial coatings, and color engineering.

We are a 13 year old company that has provided monodisperse and unagglomerated metal and metal-oxide nanomaterials to thousands of customers. Hundreds of different variants of material, size, shape, and surface are available as stock products and we have produced over 2000 custom core/shell, biofunctionalized, fluorescent, and magnetic nanocomposites to meet client specifications. NanoComposix produced the NIST nanosilver reference material and our particles have been utilized in over 400 peer-reviewed publications. All of our materials are supplied with certificates of analysis that include electron microscopy, hydrodynamic diameter, and optical data for each batch to guarantee products meets specifications. Contract manufacturing is performed on scales that range from small beakers to thousands of liters. Nanomaterials for medical devices and clinical trials are produced in our ISO13485 and cGMP compliant cleanroom facility. By leveraging our unique library of nanomaterials, we aim to help our customers rapidly bring nano-enabled products from concept to commercialization.

The motivation for starting nanoComposix was the frustration I had experienced as a scientist when trying to acquire high quality nanomaterials. Every time I ordered a product from a nanomaterial or chemical company I would spend many hours performing characterization only to realize that the shape, size distribution, agglomeration state or chemical purity was not what I was expecting. I would be forced to discard the material and try another vendor. This was a time consuming and completely unnecessary impediment to the development of technologies and products that leverage the new and exciting properties of nanomaterials. At nanoComposix, we provide extensive characterization data with each product that we sell. Additionally, our diverse team of scientists can provide solutions to the integration problems that are the main challenge for leveraging novel nanoscale properties into commercial products. It is my hope that with improved access to highly characterized nanomaterials, researchers will be able to accelerate the pace of nanomaterials research and products that harness the potential of nanotechnology. -Steve Oldenburg, President, nanoComposix


Dr. Steven OldenburgDr. Steven Oldenburg

Founder and CEO ·
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Ph.D. in Applied Physics, Rice University

Steve has over 20 years of nanotechnology experience beginning with his graduate work at Rice University where he discovered a method of fabricating gold nanoshells, a nanoscale composite material that consists of a spherical silica core surrounded by an ultra-thin shell of gold. This discovery led to the formation of Nanospectra Biosciences where the gold nanoshells are in clinical trials as a cancer therapy. After receiving his PhD in Applied Physics, he joined Seashell Technology where he developed commercial applications of nanotechnology, raised capital, and managed the scientific research team. In 2004 he founded nanoComposix to accelerate the commercialization of products based on precisely engineered and highly characterized nanoparticles. He is a co-founder of Sienna Biopharmaceutics and La Jolla Nanomedical, and is on the scientific advisory boards of COLR Security and Optoglo. Steve has 10 issued patents and over 40 papers in the area of nanotechnology.

Dr. Richard BaldwinDr. Richard Baldwin

VP of Research ·
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Ph.D. in Organometallic Chemistry, Australian National University

After receiving his PhD, Richard completed postdoctoral research at UC Irvine working on homogeneous olefin amination catalysis and silsesquioxane materials. He then worked with silicon nanoparticles for solar energy collection at UC Davis, and developed novel fluorescent nanoparticles for in vivo imaging at the Sidney Kimmel Cancer Center. Richard has a diverse background in both biological systems and synthetic inorganic chemistry, and he leads bionanotechnology projects in drug delivery, molecular imaging, and wound healing.

Dr. Tom DarlingtonDr. Tom Darlington

VP Operations, Chief Scientist, ·
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Ph.D. in Macromolecular and Cellular Structure and Chemistry, The Scripps Research Institute

Tom has 20+ years experience in nanomaterial fabrication & development, chemistry, composite research, analytical assay development, and molecular & cell biology. He joined nanoComposix in 2005 after working with Epicyte Pharmaceuticals to rapidly scale antibody manufacturing with novel expression systems and with Chromatin, Inc. to develop analytical tools for characterizing biological macromolecules. At nanoComposix, Tom has developed technology in the areas of plasmonic nanoparticles (photothermal treatment, signature management, color perception), biomolecule-targeted nanoparticles (cancer therapy & imaging), lateral flow devices (Lyme disease vector in ticks), materials science (self-healing carbon fiber composites, thermal interface materials, transparent conductive thin films), and instruments (gold nanoparticles for MALDI imaging, single cell mass spectrometer (SCMS) based on ATOFMS technology). Tom is currently focused on transferring projects from early stage R&D into regulated development and manufacturing programs. He established the nanoComposix Quality Management System (QMS) and built an ISO Class 8 manufacturing suite for the production of nanomaterials for medical devices. Examples of medical device products manufactured for clients at nanoComposix under the QMS include topical silver particles used in photothermal treatment (Sienna Biopharmaceuticals) and lateral flow test strips for mapping loiasis (Drugs & Diagnostics for Tropical Diseases).

Dr. Bo GaoDr. Bo Gao

Senior Scientist
Ph.D. in Chemistry, University of Notre Dame

Bo’s doctoral research at the University of Notre Dame focused on nanoscale patterning of proteins and DNA nanostructures on silicon surface by using e-beam lithography and self-assembly. Later as a postdoctoral researcher at NanoEngineering Department of the University of California, San Diego, she studied synthesis, surface modification, and self-assembly of gold and silver nanoparticles in polymer matrix to build plasmonic nanoantenna. After joining nanoComposix, Bo’s research focuses on developing synthetic techniques for high quality metal nanoparticles and functionalizing silica coated gold nanoparticles for optical and bionanotechnology applications. Bo has 12 publicaitions in the nanoscience field.

David GarciaDavid Garcia

Analytical Services Manager ·
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B.S. in Chemistry, Humboldt State University

David earned his B.S. in Chemistry from Humboldt State University in 2010 with a focus on materials chemistry and electrochemistry. He began working at nanoComposix in the fall of 2011 and quickly found his niche as an analytical chemist, becoming an expert on DLS, Zeta Potential and ICP-MS measurement and data analysis. As manager of the Analytical Services department, David has led the effort to establish the methodology and documentation necessary to grow and develop this department. David remains heavily involved with internal product QC and research characterization efforts.

John HolecekJohn Holecek

Senior Scientist ·
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M.S. in Earth Science from the Scripps Institution of Oceanography

John‘s background is in the effects of natural and anthropogenic aerosols on climate, and has researched atmospheric events ranging from brown clouds in the tropics to ozone loss in the Arctic. He has extensive experience with aerosol characterization instruments, mass spectrometry, chemi-luminescece instruments, and pulsed laser systems. John joined nanoComposix in 2008 and has led projects that utilize metal nanoparticles as novel obscurants to block visible, near-IR, and mid-IR regions of the spectrum. He is also developed systems to transition the manufacturing of pyrophoric metal nanoparticles used for IR decoys from research scale to production scale. He is the author of 19 peer reviewed journal articles.

Dr. Carrie JamesDr. Carrie James

Senior Scientist ·
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Ph.D. in Organic Chemistry, University of California, San Diego

Carrie is an organic chemist with expertise in polymer chemistry, solid phase synthesis, soft materials, and nucleic acid chemistry. She earned her Ph.D. at the University of California, San Diego in 2015 where she focused her work on the development of peptide nucleic acid- polymer nanomaterials for use as gene therapy agents. She joined nanocomposix in 2016 and is currently involved in the synthesis of organic light-emitting polymer nanoparticles for use in one-way illumination devices.

Rhea PerezRhea Perez

Senior Scientist
B.S. in Cell & Molecular Biology, San Francisco State University

Rhea has a B.S. in Cell & Molecular Biology and specializes in bio-conjugation of nanoparticles and integration into diagnostic systems. She has developed lateral flow immunoassays beginning with the initial proof of concept through validation and manufacturing. She has experience in immunoassay development on qualitative and quantitative platforms in both competitive and sandwich assay formats.

Dr. Philippe Saint-Cricq-RiviereDr. Philippe Saint Cricq Riviere

Research Scientist
Ph.D. in Physical Chemistry, Université de Pau et des Pays de l’Adour (France)

Philippe did his Ph.D. on sol-gel chemistry applied to photooxidation of organic molecules. He then explored the synthesis of various inorganic nanoparticles (silica, silver, gold) as well as the antibacterial properties of core-shell materials at the University of Tokyo before specializing in the synthesis of mesoporous silica nanoparticles applied to drug delivery at the University of California, Los Angeles (UCLA). After joining nanoComposix, Philippe’s main research focuses on synthesis and derivatization of silica nanoparticles for applications in nanomedicine.

Dr. Aaron SaundersDr. Aaron Saunders

Chief Scientist ·
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Ph.D. in Chemical Engineering, University of Texas at Austin

Aaron is a chemical engineer with more than 15 years of experience in the design, fabrication and integration of colloidal nanoparticles into applications ranging from diagnostics to photovoltaics. During his graduate work at the University of Texas at Austin and postdoctoral research at the Hebrew University in Jerusalem, he developed new methods for synthesizing multi-component particles with novel optical and catalytic properties. As a professor at the University of Colorado at Boulder his research group studied the synthesis and shape control of colloidal metal and semiconductor nanocrystals, focusing on energy harvesting and sensing applications. He moved to nanoComposix in 2011 and leads projects working with government and commercial clients to develop materials with tailored optical properties for diagnostic, sensing, security, and energy applications.

Kimberly WalthallKimberly Walthall

Senior Scientist ·
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B.S. in Chemistry, San Diego State University

Kimberly earned her B.S. in Chemistry from San Diego State University, where she spent several years working in a bioanalytical separations lab developing a detection method for autologous blood doping in elite athletes. In the 2011, she joined nanoComposix where she has focused primarily on internal research and development and custom nanoparticle formulation, with an emphasis on non-spherical and tunable plasmonic materials such as silver nanoplates and nanocubes. More recently, she has been leading the development of commercial scale GMP manufacturing of plasmonic nanomaterials.

Jean WerleJean Werle

Senior Scientist ·
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B.S. in Chemistry, San Diego State University

Jean graduated from San Diego State University with a B.S. in Chemistry, focusing on inorganic synthesis, and has more than five years of experience with nanoparticle synthesis, characterization, and surface modification. During the past several years at nanoComposix, she has worked to develop nanoparticle-based point-of-care diagnostic assays, helping to develop particles that give increased sensitivity and methods of covalently conjugating antibodies to nanoparticle surfaces.

Commercial Sales

Martin MirandaMartin Miranda

Production and R&D Manager ·
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Martin has 10 years of prior industry experience including organic small molecule synthesis, R&D of dye and pigmented ink formulation, and protocol development. Before coming to nanoComposix, Martin worked as a Chemical Technician at Hewlett-Packard. He joined nanoComposix in 2010 and as R&D and Production Manager is responsible for the development, production, quality control, and safety of product manufacturing. While at nanoComposix, he has overseen the launch of numerous standard products and has been a leader in establishing SOP’s & documentation guidelines, building a strong nanomaterial data base and staff development. He is listed as inventor in 2 submitted patents and has contributed to the generation of many of the documents in our ever growing knowledge base.

Elizabeth WardElizabeth Ward

Sales Manager, Life Science Product Manager ·
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Liz graduated from Claremont McKenna College with a B.A. in Science and Management. As nanoComposix‘s Sales Manager she is responsible for all aspects of the sales cycle including order management, fulfillment and maintaining nanoComposix‘s high standards of customer service.

Rebecca HartRebecca Hart

Western Regional Account Manager, Marketing Manager ·
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Rebecca graduated from Azusa Pacific University with a B.A. in Molecular Biology. Her previous sales experience includes bioconjugation reagents sales sold directly and distributed worldwide. As an Account manager she covers the western and mid-western region, supporting her customers in every stage of the sales process from product selection to final stages of product evaluation. Her role also extends to generating marketing content both written and electronic.

Dr. Elonne PetrinDr. Elonne Petrin

Eastern Regional Account Manager, Business Development ·
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After receiving her Ph.D. Elonne completed postdoctoral research at UCSD and the San Diego VA Med Center studying PTHrP and the effects of IFN-gamma on the JAK STAT pathway in prostate and breast cancer cells. Elonne went on as a Staff Scientist at UCSD to study hypoxia and its effects on VEGF and erythropoietin in pregnant sheep over gestational age prior to transitioning to field sales. She brings over 20 years of outside sales experience supporting life science reagent and custom product sales. Prior to joining nanoComposix, Elonne worked at BioSource International (now Thermo Fisher Scientific), Genset Oligos (Degussa AG 2003), Estapor, French Subsidiary of Merck Chemicals specializing in latex particles for IVD assay development, and Lonza. At Estapor, she supported R&D customers seeking FDA approval for immunodiagnostic assays using fluorescent, magnetic and surface functionalized nanoparticles. At nanoComposix Elonne serves as the Eastern Account Manager for North America as well as the UK and Australia.