San Francisco, CA, United States
San Francisco, CA, United States
Time filter
Source Type

Liu Y.,Hong Kong University of Science and Technology | Tang Y.,Hong Kong University of Science and Technology | Barashkov N.N.,Micro-Tracers, Inc. | Irgibaeva I.S.,Eurasian University | And 5 more authors.
Journal of the American Chemical Society | Year: 2010

CO2 sensing is of great societal implications, as CO2 is a component of gas mixtures from many natural and anthropogenic processes with huge impacts on globe climate and human well-being. Herein we report a CO2 assay scheme over a wide concentration range, utilizing a fluorogen with an aggregation-induced emission feature and a liquid with tunable polarity and viscosity. The CO2 sensing process is specific, quantitative, and interferent tolerant. © 2010 American Chemical Society.

Barashkov N.N.,Micro-Tracers, Inc. | Eisenberg D.A.,Micro-Tracers, Inc. | Irgibaeva I.S.,Eurasian University
ACS Symposium Series | Year: 2011

Deionized (DI) water contaminated with Salmonella typhimurium (S. typhimurium) or E. coli B bacteria was disinfected by alternating current. Ammonium sulfate, sodium nitrate and phosphate buffer were used as electrolytes. Disinfection was carried out in the circulation system including an electrochemical cell with three types of electrodes; stainless steel, titanium and nickel. The process efficiency was estimated and the number of killed bacteria was directly proportional to the water treatment time and concentration of hydroxyl radicals generated by electrolysis. The presence of OH radicals was detected with N,N-dimethyl-p-nitrosoaniline (RNO) used as a spin trap. Similar experiments were carried out with water remaining after poultry washing at poultry farms and additionally contaminated with S. typhimurium bacteria. Measures were recommended to increase the process efficiency and decrease the water treatment time. © 2011 American Chemical Society.

Micro-Tracers, Inc. | Date: 2016-07-12

particles made from food-grade plastic that can be included in pills, coatings, and labels which can be used to confirm the authenticity of consumer products, pharmaceutical products, food products, and electronics. affixing and embedding product authentication security devices and materials in a wide variety of products to protect against counterfeiting and tampering, and to ensure the integrity of genuine products.

Micro-Tracers, Inc. | Date: 2013-11-14

The invention relates generally to tracer particles for product identification and/or authentication. When incorporated into a manufactured item, that item can be subsequently authenticated by either detecting, or failing to detect, the tracer particle. The tracer particles of the invention are magnetically attractable, with micromarkings, and in some embodiments, are manufactured with food grade materials and of a particle size suitable for ingestion by humans. The particles can be analyzed qualitatively or quantitatively. In other aspects, the invention provides methods for the manufacture of the tracer particles, and in other aspects, provides methods for using the particles. Examples of products that can be tagged using the tracer particles of the invention include pharmaceuticals, animal feeds or feed supplements, and baby formula. Other applications include forensics, such as in explosive materials.

Micro-Tracers, Inc. | Entity website

F-Microtracers are a uniform steel grit and FD&C Food Dye coated product.These particles are Magnetically Retrievable with a guaranteed particle count of between 22,000 to 32,000 particles per gram ...

Micro-Tracers, Inc. | Entity website


Micro-Tracers, Inc. | Entity website

DESCRIPTION Microtracers-RF are iron powder colored with water soluble FD&C colors, designed to be used in feeds or premixes. Microtracers-RF may be assayed qualitatively using a Rotary Detector or the Mason Jar Technique in about two minutes ...

Agency: Environmental Protection Agency | Branch: | Program: SBIR | Phase: Phase I | Award Amount: 73.43K | Year: 2011

"Effective electrolytic sanitizing of contaminated waters using chloride requires a relatively high concentration of the elemental chlorine and hypochlorides. This requires a high concentration of chloride salt (higher the 0.15%). At such a concentration, chloride ions cause corrosion of various bimetal connections found in water plumbing systems, such as water distributors, cooling towers, etc. Replacement of chloride anions with anions of phosphates, nitrates, sulfates, benzoates or carbonates that do not cause corrosion would be advantageous in reducing the cost of equipment. In addition, other problems, associated with using chlorine in wastewater treatment, include: unfavorable odor, ineffectiveness when used alone against resistant microorganisms such as Cyptorsporodium parvum and occasional failure to meet regulatory standards. This project relates to advanced oxidation disinfecting processes, and more particularly to the combined use of singlet oxygen and electrochemical sterilization utilizing non-chloride electrolytes to kill non-pathogenic and pathogenic bacteria in contaminated water. The photochemical reaction of triplet oxygen with excited molecule of insoluble for of fluorescent dyes will generate singlet oxygen. We plan to provide experimental proof that singlet oxygen generated during irradiation of the water-insoluble form of photosensitizer (Al-salts of fluorescent dyes, deposited on the silica gel and dispersed in polymer coating) has a significant sanitizing effect on water contaminated with non-pathogenic bacteria such as E. coli B, and pathogenic bacteria, such as S. typhimurium. The sanitizing effect against non-pathogenic and pathogenic bacteria provided by AC electrolytic processes that product oxidants in chloride-free water solutions will be investigated in such media as phosphate buffer, ammonium sulfate, sodium carbonate, sodium nitrate, sodium sulphate, sodium dihydrogen phosphate, trisodium phosphate and calcium benzoate at low current (from 0.15 to 1.2 A), relatively low current densities (from 45 ma/cm2) and initial voltage demand of 20-80 volts. We plan to demonstrate that the combination of two sterilization method, namely, the singlet oxygen generation and chlorine-free electrolytic process, provides a more effect sanitizing effect against non-pathogenic and pathogenic bacteria than either of the two individual methods. The mechanism of the sanitizing effects of the singlet oxygen generation, as well as the chlorine-free electrolytic methods will be investigated and the nature of intermediate products (free radicals, peroxides, etc.) will be identified. Potential commercial application of new method includes a sterilization of poultry rinse water contaminated with non-pathogenic and pathogenic bacteria. "

Micro-Tracers, Inc. | Entity website

BeschreibungMicro-Tracers Die Firma Micro-Tracers, Inc. (1961) hat Ihren Standort in San Francisco, USA ...

Micro-Tracers, Inc. | Entity website

WHY IS MIXER TESTING IMPORTANT? Improperly mixing feed reduces its value and leads to customer disatisfaction Excess mixing wastes time, energy, and labor Cross contamination can lead to drug residues and toxicity WHY MICROTRACERS? Microtracers mixer testing procedures are included in the official GMP+ Test Procedures applicable to ISO worldwide. Microtracers mixer testing procedures are included in the official ASAE (USA) Test Procedures ...

Loading Micro-Tracers, Inc. collaborators
Loading Micro-Tracers, Inc. collaborators