2020:176:Millette Microscope, Vol 68:2 p.71-79 Millette, Compton, DePasquale Abstract: An asbestos-containing, sodium silicate-based fibrous adhesive was applied to insulating materialsfrom the 1940s to the 1970s. Batch … [Read more...]
Analysis of Vermiculite for Asbestos and Screening for Vermiculite from Libby, Montana (2015)
2015:174:Millette Microscope, Vol 63:2 p.59-75 Millette, Compton Abstract: There is general agreement that a negative finding using the usual bulk microscope analysis for building materials without any pre-treatment of the … [Read more...]
Microscopical Analyses of Asbestos-Containing Dental Tape (2019)
2019:175:Millette Microscope, Vol 67:3 p.99-109 Millette, Compton, DePasquale Abstract: Since the 1930s, asbestos-containing dental ring liner tape has been used in making crowns, bridges, and other metal prostheses. Analyses … [Read more...]
ISO 8573 Compressed Air Particle Testing
The ISO 8573 standard specifies the purity of compressed air. Compressed air is utilized across many industries, including medical, pharmaceutical, and food. Particulate matter contamination of compressed air and its measurement is … [Read more...]
Microscopical Analysis of Consumer Products Containing Carbon Nanotubes: Determining Potential Airborne Release
Steven P. Compton, Ph.D. and Michelle R. Cavaliere, Ph.D. It has been estimated that by 2014, $2.6 trillion in manufactured goods will incorporate nanotechnology, which is approximately 15% of total global output. In particular, carbon … [Read more...]
Spectral Imaging of Multivitamins by Confocal Raman Microscopy
ABSTRACT: Vitamins are becoming increasingly common in over-the-counter health supplements and personal care products. The distribution of the vitamin(s) within the formulation effects their release and stability. Confocal Raman … [Read more...]
Microneedle Analysis
Microneedles are micron-sized needle-like structures that are used by the pharmaceutical and cosmetic industries to deliver drugs, such as insulin, hormones, vaccines and acne treatments, intradermally. They can pierce the skin in a … [Read more...]
Confocal Raman and Electron Microscopy Analysis of Ophthalmic Implants
Ophthalmic implants, also known as ocular implants, can be used to deliver therapeutics more effectively or to improve or return vision to patients. Ocular implants include prosthetic eyes, artificial lenses, drainage implants (tube … [Read more...]
Teaching the TEM Training Course at MVA
By Matt Underwood Recently I had the privilege of teaching the hands-on portion of the Transmission Electron Microscope (TEM) class offered at MVA. The class covers asbestos related topics, such as, sample preparation, analysis and … [Read more...]
Contamination in Beer
In this contamination in beer incident, a beer bottle containing a foreign matter was sent to Better Call Harry at CBS46 in Atlanta, GA, who contacted us to investigate the matter. Biological contamination (bacteria, viruses, or … [Read more...]
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