detection
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Chemistry
Amplification trick increases sensitivity of water toxin detection by 10 times
The latest version of the sensing platform ROSALIND is 10 times more sensitive than its predecessor, opening the possibility for the system to be applied to the detection and monitoring of nucleic acid and bacterial diseases in the human body. Credit: Northwestern University Electric instruments can function unplugged, but they sound better when connected to an amplifier. Similarly, low concentrations…
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Physics
Photoacoustic spectroscopy approach enables real-time detection of low gas concentrations
A new method for detecting and identifying gases at very low concentrations in real time adds coherent control to quartz-enhanced photoacoustic spectroscopy, which uses a quartz tuning fork to detect gas absorption. Credit: Florian Sterl, Sterltech Optics GmbH Researchers have developed a new method to quickly detect and identify gases at very low concentrations. This new approach, called coherently controlled…
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Physics
From starlight to visibility: researchers develop shortwave infrared technology that enables detection of starlight
Benchmarking HGFETs, InGaAs diodes, and other thin film photodetectors. Credit: Peking University Professor Zhang Zhiyong’s team at Peking University has developed a heterojunction-gate field-effect transistor (HGFET) that achieves high sensitivity in shortwave infrared detection, recording a specific detection power of over 1014 Jones at 1300nm, and detecting starlight. became possible. Their work was recently published in the journal Advanced Materials…
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Physics
Compact all-fiber photoacoustic spectrometer for intravascular gas detection comparable to laboratory-based systems
Fiber photoacoustic spectrometer allows continuous intravascular gas monitoring. Credit: Jun Ma (Jinan University) Compact spectroscopic systems capable of detecting trace concentrations at parts per billion (ppb) levels are of paramount importance in applications ranging from environmental monitoring and industrial process control to biomedical diagnostics. However, existing benchtop spectroscopy systems are too large, complex, and impractical for use in confined spaces.…
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Nanotechnology
Nanopatterned graphene enables infrared ‘color’ detection and imaging
Professor Debashis Chanda of the UCF Center for Nanoscience and Technology sits near his infrared camera image in his lab. Chanda and a research group of UCF students have developed a new long-wave infrared detection technique. (Photo courtesy of Debashi Chanda). Credit: Debashis Chanda Debashis Chanda, a University of Central Florida (UCF) researcher and professor at the UCF Center for…
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Nanotechnology
Mechanical engineers find a way to increase the sensitivity of nanopores for early disease detection
Credit: Analytical Chemistry (2024). DOI: 10.1021/acs.analchem.4c02016 SMU Lyle Mechanical Engineering graduate student Kamruzzaman Jyoti will introduce new techniques in nanotechnology to detect and analyze biomolecules, potentially paving the way for new methods for early disease detection. The research, recently featured on the cover of Analytical Chemistry, integrates octahedral DNA origami structures with solid-state nanopores to significantly improve detection of proteins,…
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Physics
Ytterbium thin disk laser paves the way for sensitive detection of air pollutants
Optical parametric oscillator pump with ytterbium thin plate laser. Credit: APL Photonics (2024). DOI: 10.1063/5.0230388 Along with carbon dioxide, methane is the main cause of global warming. To accurately detect and monitor climate pollutants in the atmosphere, scientists at the Max Planck Institute for the Science of Light (MPL) have developed advanced laser technology. A high-power ytterbium thin disk laser…
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Nanotechnology
Nanoparticle approach enhances detection of low-abundance proteins in plasma
PtdChos can deplete the most abundant plasma proteins in the protein corona profile. Credit: Nature Communications (2024). DOI: 10.1038/s41467-024-53966-z In a recent study published in Nature Communications, scientists from Karolinska Institutet’s Department of Microbiology, Tumors and Cell Biology, in collaboration with Michigan State University, introduced an innovative approach to improve plasma proteome profiling. Researchers have developed a new method that…
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Nanotechnology
Team develops non-invasive biosensor for early detection of kidney disease
Researchers have developed a biosensor that uses affinity peptides to detect symmetrical dimethylarginine (SDMA), an early marker of kidney problems. This sensor measures SDMA levels in urine with high accuracy, making it a practical and cost-effective tool for early diagnosis and monitoring. Credit: “Kidney Cross Section” Artwork: Holly Fischer Image Source: https://commons.wikimedia.org/w/index.php?curid=24367128 Traditionally, kidney health has been monitored by measuring…
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Nanotechnology
Quantum materials could be the future of high-energy X-ray imaging and particle detection
High-resolution X-ray imaging using quantum shell thin films. Credit: Nature Communications (2024). DOI: 10.1038/s41467-024-48351-9 A scintillator is a detector that visualizes high-energy X-rays or particles with a flash of light, forming an image. Its many applications include particle physics, medical imaging, X-ray security, and more. However, despite their usefulness, scintillators pose a challenge to researchers. Until recently, scientists had to…
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