Near Real-time, Low-cost, Hand-held Sensors for Measuring Elemental Concentration of Airborne Particles for Indoor or Outdoor Air Quality Monitoring

Airborne particles can have great impact on air quality, weather, and human health. In particular, long-term inhalation of toxic particulate matter in workplaces could pose a significant health risk. NIOSH scientists have developed a new, low-cost approach based on application of atmospheric radio frequency glow discharge (rf-GD) optical emission spectroscopy for near real-time measurement of elemental concentration in aerosols. The method involves collection of aerosol particles on an electrode tip in a coaxial microelectrode system, followed by excitation of the particles using rf-GD.

Respirator Protection Devices and Methods to Detect and Remove Toxic Gases from the Air - Cobinamide Encapsulated Silica-based Materials for Respirator Canisters

A respirator protects the wearer from inhaling dangerous substances, such as chemicals and infectious particles. CDC developed devices and methods to detect and remove chemicals such as hydrogen cyanide, cyanogen, hydrogen sulfide, nitrite, and nitric oxide from the air for those wearing respirators. Cobinamide (a Vitamin B12 analog with a high affinity to cyanide) molecules are immobilized within a silica matrix that allows for the infiltration and containment of gaseous chemicals.

Adjustable Barricade Safety Rail System and Roof Bracket Assembly to Prevent Worker Falls

Falls are the leading cause of death in construction. In 2016, there were 370 fatal falls out of 991 construction fatalities (Bureau of Labor Statistics, Census of Fatal Occupational Injuries data). These deaths are preventable. According to the Occupational Safety and Health Administration, employers must set up the workplace to prevent employees from falling from overhead platforms, elevated work stations, or into holes in the floor and walls.

Wipes and Methods for Removal of Lead and Other Metal Contamination from Surfaces

Exposure to lead (Pb) has long posed serious health risks. Ingestion of lead from skin exposure can adversely impact every organ in the body; the kidneys, blood, nervous, and reproductive systems are most affected. Washing skin with soap and water is not sufficient to remove lead residues. To prevent adverse impacts from Pb exposure, exposed individuals need cleaning methods that will effectively remove Pb ions from the skin to less than the limit of identification (i.e., 10 µg or less).

Handwipe Disclosing Method for Detecting the Presence of Lead

Lead (Pb) exposure can cause serious health concerns including abdominal pain, headaches, loss of appetite, memory loss, weakness, and other symptoms. Lead residues on human skin, especially on the hands of workers can be a significant health risk since such residues may be ingested during normal activities (e.g. eating, drinking, and smoking). A key component to reducing lead exposure is being able to identify areas of lead contamination.

New Cholera Vaccine and Method for Conjugating Bacterial Polysaccharides to Proteins

A new conjugate vaccine for cholera has been developed. The invention includes a new method to conjugate the O-specific polysaccharide-core part of the bacterial lipopolysaccharide and protein subcomponents. Conventional technology has entailed chemical treatment of both components to introduce linkers, which made them amenable for covalent linking. The new method simplifies production by utilizing squaric acid chemistry for conjugating the free amine-containing species (e.g. polysaccharides) directly to amine-containing species (e.g.

Combined RNA and DNA Vaccination Strategy for Improving the Vaccine Immune Response

The development of an effective HIV vaccine has been ongoing. HIV sequence diversity and immunodominance are major obstacles in the design of an effective vaccine. Researchers at the National Cancer Institute (NCI) developed a novel vaccine strategy combining both DNA and mRNA vaccination to induce an effective immune response. This combination strategy could also be used to develop vaccines against cancer or other infectious diseases (ex. SARS-CoV-2). 

National Cancer Institute dosimetry system for Computed Tomography (NCICT) Computer Program

About half of the per capita dose of radiation due to medical exposures is provided by computed tomography (CT) examinations. Approximately 80 million CTs are performed annually in the United States. CT scans most commonly look for internal bleeding or clots, abscesses due to infection, tumors and internal structures. Although CT provides great patient benefit, concerns exist about potential associated risks from radiation doses – especially in pediatric patients more sensitive to radiation.

A Human Monoclonal Antibody Against Deacetylated PNAG for Use as an Antimicrobial Agent

Biofilms are complex microbial communities, surface attached and held together by self-produced polymer matrices.  These matrices are mainly composed of polysaccharides, secreted proteins and nucleic acids.  Poly-N-acetyl glucosamine (PNAG) is a highly conserved surface polysaccharide expressed by a range of bacterial, fungal and protozoan microorganisms.

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