Handheld field spectroscopy refers to portable, in situ spectroscopic measurement methods that acquire reflectance, absorbance, or emission spectra of materials directly in the field using compact, battery-powered instruments. These methods typically employ visible–near infrared (VNIR), shortwave infrared (SWIR), or mid-infrared (MIR) detectors and fiber-optic or contact probes to rapidly characterize surfaces such as soils, vegetation, rocks, or man-made materials without sample extraction. Handheld field spectroscopy enables high-throughput, georeferenced spectral data collection for calibration–validation of remote sensing products, proximal sensing in precision agriculture, rapid environmental assessment, and real-time material identification in geosciences and engineering applications.
In a major advancement for decentralized health care and environmental monitoring, researchers at Kumamoto University have successfully developed a palm-sized, battery-powered spectrophotometer that matches the performance ...
Biotechnology
May 31, 2026
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Diagnosing some diseases could be as easy as breathing into a tube. MIT engineers have developed a test to detect disease-related compounds in a patient's breath. The new test could provide a faster way to diagnose pneumonia ...
Bio & Medicine
Mar 16, 2026
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12
Across the U.S., hundreds of sites on land or in lakes and rivers are heavily contaminated with hazardous waste produced by human activity. Many of these places, designated as Superfund sites by the Environmental Protection ...
Bio & Medicine
Mar 2, 2026
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39
In late 2025, scientists reported that for the first time, they were able to detect concentrations of plastic pollution on land using NASA's Earth Surface Mineral Dust Source Investigation (EMIT) sensor aboard the International ...
Environment
Jan 26, 2026
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13
Escalating pollution and contamination of water and soil are emerging as serious threats to plant growth and its overall health. Plants are exposed to environmental pollutants for extended periods and exhibit changes in their ...
Plants & Animals
Dec 15, 2025
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28
Researchers have made a significant advance in the development of a blood test for Alzheimer's, creating a new sensor design that is ultra-sensitive, outperforms competing technologies and can be built into a handheld device.
Bio & Medicine
Oct 9, 2025
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37
Researchers have developed a new portable Raman analyzer that can accurately measure very low concentrations of hydrogen gas in ambient air. The instrument could be useful for detecting hydrogen leaks, which pose serious ...
Optics & Photonics
Apr 24, 2025
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