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Intracranial Pressure Monitoring With Near-Infrared Spectroscopy

A new algorithm estimates intracranial pressure based on hemoglobin levels through the use of near-infrared spectroscopic cardiac pulse waveforms.

25 Oct 2022

New Ultra-Small Spectrometer Can Be Placed on a Microchip

A team of researchers including a materials researcher from Oregon State University (OSU) has designed a superior tool to quantify light, contributing to a field called optical spectrometry in a manner that could enhance numerous things ranging from environmental monitoring to smartphone cameras.

21 Oct 2022

Spectrophotometric pH Analyzer Developed for Ocean Acidification Research

A recent study published in Sensors demonstrates the development of a handheld pH instrument named pHyter. The researchers determined the accuracy of pH measurements made using the pHyter compared with desktop spectrophotometric seawater pH measurements and electrochemical sensors.

21 Oct 2022

First Molecular-Level Characterization of Organophosphorus Compounds via Mass Spectrometry

A recent study published in Analytical Chemistry demonstrates the molecular characterization of Organophosphorus compounds in an ambient organic aerosol altered by wildfire smoke.

12 Oct 2022

Improving Cavity-Enhanced Spectroscopy with a U-Cavity System

A recent study published in Applied Sciences proposes a U-cavity system to boost the performance of cavity-enhanced spectroscopy systems. The asymmetric ripple effect significantly impacts the performance of the spectral system.

10 Oct 2022

Innovative Method for Rapid Analysis of Bacterial Pathogens

A recent study published in Diseases highlights matrix-assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF MS) for discovering bacterial isolates from community patient urine samples and testing the isolated germs for antibiotic susceptibility.

5 Oct 2022

First National-Scale Pixel-Based Landcover Classification for the Open Coast of New Zealand

In an article published in Remote Sensing, researchers developed a hybrid rule-based and machine learning methodology using a combination of Sentinel multispectral and Synthetic Aperture Radar (SAR) composite imagery to provide the first national-scale pixel-based landcover classification for the open coast of New Zealand.

30 Sep 2022

Technical and Multi-Analytical Investigation of Sacred Tibetan Thangka Paintings

Thangkas are sacred artifacts; therefore, conducting scientific examinations of these paintings is not common. Based on this significant ethical challenge, a study published in the journal Heritage proposed a non-invasive three-stage technique that carefully investigates each layer of the painting, successfully assessing various production stages such as color notations, underdrawing, and painting techniques.

29 Sep 2022

Effect of Hydrogen Content on Silver Nanoparticles in Surface Enhanced Raman Spectroscopy

A pre-proof study in the Journal of Aerosol Science employs a series of spark discharges in a flowing gas environment to repeatedly manufacture silver nanoparticles using the hydrogen-assisted spark generation technique. Various compositions of H2-Ar mixtures were used as the carrier gas to comprehensively study how the hydrogen concentration affects the signal amplification achieved with silver nanoparticles in Raman spectroscopic investigations.

29 Sep 2022

Wearable Near-Infrared Spectroscopy Sensor for Monitoring COVID-19

Techniques for identification, screening, and monitoring of respiratory disease have come under the limelight as a result of the recent outbreak of coronavirus disease (COVID-19). A recent study published in Sensors determines the possibility of gathering respiratory signals from a wearable near-infrared spectroscopy (NIRS) sensor.

28 Sep 2022