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Health, Medicine, & Biotechnology

Briefs : Medical
Device for Testing Susceptibility of Bacteria to Antibiotics

A compact, lightweight, device makes it possible to assess the effects of antibiotics on bacteria. The device safely contains the antibiotic/bacteria mixtures, and its operation involves minimal ancillary equipment and minimal expense of time and effort by technicians. Originally...

Briefs : Medical
Determining Glucose Levels From NIR Raman Spectra of Eyes

A developmental noninvasive method of determining the concentration of glucose in blood is based on (1) the acquisition of a near-infrared (NIR) Raman spectrum from the aqueous humor of an eye, (2) analyzing the spectrum by a combination of techniques described below, and (3) recognition...

Briefs : Medical
Wearable Sensor Patches for Physiological Monitoring

Wearable sensor patches — miniature biotelemetric units — have been proposed for use in measuring temperature, heart rate, blood pressure, and possibly other physiological parameters. The sensor patches would be small and could be mass-produced inexpensively by use of state-of-the-art...

Briefs : Medical
Improved Sensor Pills for Physiological Monitoring

Improved miniature biotelemetric units resembling large pills have been proposed for use in physiological monitoring of the gastrointestinal tract. The broad principles of design, operation, and inexpensive mass production of these sensor pills would be the same as those of the sensor patches...

Briefs : Medical
Urine-Sample-Collection Device for Use on the Space Shuttle

The in-flight urine collection absorber (IUCA) is a Johnson Space Center (JSC) breakthrough. It features a lightweight, compact design and is easy to use for collection of urine samples by male and female space shuttle crewmembers. The IUCA is superior to currently available hardware...

Briefs : Medical
Noninvasive Test Detects Cardiovascular Disease

A technique for noninvasive determination of the pressure in the cerebrospinal fluid (CSF) has been proposed. This technique would involve two main steps: First, an optical coherence tomographic scanner would be aimed into an eye and used to image the optical disk (see figure). Next, the resulting...

Briefs : Medical
Improved Urine Preservative

An improved solution for preserving samples of urine has been formulated. This solution preserves a much broader spectrum of analytes in urine than do other urine-preservative solutions here-tofore in use by NASA, and is safe for use by humans. When this solution is used, (1) refrigeration of urine samples is not...

Briefs : Medical
Primers for Amplifying CMV DNA in Body Fluids and Tissue

A novel set of primers has been developed for use in a polymerase chain reaction (PCR) to amplify the deoxyribonucleic acid (DNA) of cytomegalovirus (CMV). The purpose of this development is to enable faster, more sensitive detection of CMV virus infecting body fluids and tissues.

Briefs : Medical
Whole-Blood-Staining Device

A whole-blood-staining device provides a means of (1) staining white blood cells by use of monoclonal antibodies conjugated to various fluorochromes, followed by (2) lysing and fixing of the cells by use of a commercial reagent that has been diluted according to NASA safety standards. More stable than whole blood,...

Briefs : Medical
Portable Device for Chemical Fixation of a Biological Sample

The Kennedy Space Center (KSC) fixation tube is a device for chemical fixation of a biological sample. It is mechanically resilient, small, and easy to use, and is thus well suited to use in the field as well as in the laboratory. Because typical chemical fixatives are extremely...

Briefs : Medical
Wicks for Initiating Hydroponic Growth

A material developed for space suits has been found useful in a completely different application: making wicks to support seedlings and to carry water and nutrients to them during the initial stages of hydroponic growth. A modified version of the wick material may also prove useful in wick-based...

Briefs : Medical
Improved Suit for Protection During Abrasive Blasting

An improved suit to be worn by a worker during abrasive blasting has been developed. Denoted an environmentally controlled abrasive-blasting suit (ECAB), it provides comprehensive protection that, heretofore, has been afforded by a set of special under- and over-garments (including a helmet)...

Briefs : Medical
Exoskeletal System for Neuromuscular Rehabilitation

A system of sensors and actuators designed to fit on the lower extremities of human patients and astronauts like an exoskeleton is under development to serve diverse purposes in neuromuscular research and rehabilitation. This system will be operated under both Earth and microgravity conditions....

Briefs : Medical
Imaging System Shows Ischemic Regions

A noninvasive medical-imaging system produces false-color images that show regions of ischemia (reduced oxygenated blood flow) in organs and tissues. The system operates in real time, providing immediate guidance for surgery or other treatment. For example, the system can be used to identify tissues that...

Briefs : Medical
Neutrophil-Screening Assay Using Two-Color Flow Cytometry

An in vitro test that includes the use of two-color flow cytometry has been developed for use in screening of neutrophils for their ability to fight infections. Neutrophils constitute the first line of defense of the human body against infections. Neutrophils engulf invading bacteria in a...

Briefs : Medical
Compact, Noncontact Fiber-Optic Probe for Diagnosis of Eye Diseases

A compact fiber-optic probe has been found to be useful for noncontact diagnosis of interior parts of eyes. The probe was originally developed for performing dynamic-light-scattering measurements to determine transport properties of submicron particles suspended in fluids in...

Briefs : Medical
Chemiluminescent Quantitation of Organic Compounds in Water

A method of measuring the concentration of a selected organic compound (analyte) in a sample of water involves (1) producing hydrogen peroxide as a byproduct of enzyme-catalyzed oxidation of the analyte, (2) producing light in an electrocatalyzed reaction of the hydrogen peroxide with...

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