Particle Characterization

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  • 3:04PM Jul 06, 2016
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We Are Particle Experts Particulate matter (PM) covers a wide range of finely dispersed solids that originate from both mobile and stationary sources and vary widely in chemical and physical composition. Particle characterization, which is the identificaiton of the composition of the particulate, can lead to the source of pollution. Identifying the size will determine […]

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Physicochemical and Morphological Characterization of Nanoparticles From Photocopiers: Implications for Environmental Health

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  • 3:11PM Jul 29, 2012
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In a recent article published in the peer-reviewed Nanotoxicology journal, RJ Lee Group’s Dr. Kristin Bunker, along with Dhimiter Bello, John Martin, Christopher Santeufemio, Qingwei Sun, Martin Shafer, and Philip Demokritou, explores the potential linking of printing and photocopying with environmental health effects by analyzing nanoparticles produced by the technologies. Here is the abstract:

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Symposium on Microscopic Methods and Applications to Ultrafine Particle/PM2.5/PM10 Characterization and Source Apportionment

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  • 2:32PM Jul 18, 2012
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Mr. Gary Casuccio, Senior Scientist at RJ Lee Group, Inc., will conduct a number of sessions at the Symposium on Microscopic Methods and Applications to Ultrafine Particle/PM2.5/PM10 Characterization and Source Apportionment in Xi’an, China.  The symposium, sponsored by The Institute of Earth Environment, Chinese Academy of Sciences, RJ Lee Group, Desert Research Institute, and The […]

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EBSD for Crystal Particle Analysis

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The analysis of a material’s crystallographic properties can provide a researcher with a wealth of information, including the identification, processing history, and much more. Although many techniques can be used to obtain various pieces of information, electron backscatter diffraction (EBSD) can give a more complete picture of not only what the substance is, but what […]

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TPS100 Nanoparticle Sampler

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  • 3:11PM May 18, 2016
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The TPS100 nanoparticle sampler collects airborne particles directly on an electron microscope (EM) grid which can be analyzed directly (no preparation required) using a high resolution EM to obtain detailed characterization of airborne nanoparticles. The TPS100 is the first fully self-contained, handheld thermophoretic sampling device on the market. Nanoparticles are ubiquitous in the atmosphere, and […]

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Do Engineered Nanoparticles Emitted from Laser Printers have Health Implications?

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CHALLENGE: Characterize the engineered nanomaterials (ENMs) in toner formulations and study the release of the ENMs during consumer use of laser printers. Characterize their physiochemical, morphological, and toxicological properties. SOURCE: Printers from the four most commercially available manufacturers and models using a variety of printer toner powder and paper were used during printing. PROCESS: The […]

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Are There Health Implications from Exposure to Engineered Nanoparticles Emitted from Laser Printers?

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The following case study explores engineered nanoparticles released during laser printing. CHALLENGE: Characterize the engineered nanomaterials (ENMs) in toner formulations and study the release of the ENMs during consumer use of laser printers. Characterize their physiochemical, morphological, and toxicological properties. SOURCE: Printers from the four most commercially available manufacturers and models using a variety of […]

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Exposing Nanoparticles – It’s Gotten Personal

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  • 10:11AM Apr 22, 2014
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Nanoparticles, microscopic particles with at least one dimension less than 100 nm, are a part of everyone’s daily life. You don’t have to be involved in their manufacture to be exposed to nanoparticles. Walking down the street we are exposed to vehicle exhaust (man-made nanoparticles); while on vacation at the beach everyone has come in […]

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RJ Lee Group Assists in Developing Sampler for Collection of Nanoparticles

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  • 11:27AM Oct 12, 2012
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(MONROEVILLE, Pa., October 12, 2012) RJ Lee Group, Inc. materials characterization laboratory and industrial forensics consulting firm joined forces with Colorado State University Associate Professor Dr. John Volckens, to help commercialize a prototype device for measuring nanoparticles in the air.  RJ Lee Group’s Senior Scientist and Vice President, Mr. Gary Cassucio, Mr. John Mastovich, Project […]

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