Research News

Hairbrush for functional NIR imaging of brain

fNIR-hairbrush1-sOne of the main techniques for measuring and monitoring mental activity, functional near infrared spectroscopy (fNIRS), can often be impaired because a person’s hair gets in the way. A team of researchers at the University of Texas at Dallas and the University of Texas at Arlington have developed a “brush optrode”, which provides increased sensitivity with fibre tips designed to thread through hair to enhance scalp contact.

Read more: Hairbrush for functional NIR imaging of brain

 

Rutherford Lecture celebrates Raman anniversary

Professor Robin ClarkProfessor Robin Clark CNZM FRS, Sir William Ramsay Professor Emeritus, UCL, gave the University of Canterbury's premier biennial lecture, the Rutherford Lecture, in the Town Hall, Christchurch, New Zealand, on “Raman's legacy: Spectroscopy in the Cause of Art and Archaeology” on 29 September 2010.

Read more: Rutherford Lecture celebrates Raman anniversary

   

Optical frequency comb offers improved trace gas detection

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optical-frequency-comb-sScientists at JILA (a joint operation of the National Institute of Standards and Technology and the University of Colorado at Boulder) and collaborators have demonstrated an improved laser-based "molecular fingerprinting" technique that picks out traces of key hydrogen-containing and other molecules from a billion other particles in a gas in just 30 seconds or less—performance suitable for breathalysers for diagnosing disease, measuring trace gases in the atmosphere, detecting security threats and other applications.

Read more: Optical frequency comb offers improved trace gas detection

   

Faster CARS has potential for cell diagnostics

Faster CARS has Potential for Cell DiagnosticsA paper by researchers at the National Institute of Standards and Technology (NIST) may breathe new life into the use of a powerful—but tricky—diagnostic technique for cell biology. The paper in the Biophysical Journal, demonstrates that with improved hardware and better signal processing, an enhancement to Raman spectroscopy, broadband coherent anti-Stokes Raman scattering (B-CARS), can quickly deliver detailed molecular maps of the contents of cells without damaging them. Earlier studies have suggested that to be useful, the technique would need power levels too high for cells.

Read more: Faster CARS has potential for cell diagnostics

   

"SpectroPen" could aid surgeons in detecting edges of tumours

SpectroPenBiomedical engineers are developing a hand-held device called a SpectroPen that could help surgeons see the edges of tumours in human patients in real time during surgery. Statistics indicate that complete removal, or resection, is the single most important predictor of patient survival for most solid tumours.

Read more: "SpectroPen" could aid surgeons in detecting edges of tumours

   

ToF-SIMS for better explosives detectors

Time-of-flight secondary ion mass spectrometry (ToF-SIMS) is proving to be critical for identifying and differentiating the various components of explosives. ToF-SIMS can potentially be used to differentiate between explosive manufacturers and to reveal an explosive material’s country of origin.

Read more: ToF-SIMS for better explosives detectors

   

New FT-IR oil detection technique

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CSIRO scientist, Sean Forrester, using the hand-held FT-IR to detect oil in soil. Image courtesy Ben Dearman, Ziltek Pty LtdCSIRO scientists have developed a new technique using a hand-held FT-IR spectrometer for the rapid on-site detection and quantification of petroleum hydrocarbons (commonly derived from crude oil) in soil, silt, sediment or rock.

Read more: New FT-IR oil detection technique

   

NMR/MRI for microfluidics

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Pines-microflow-sThrough a combination of remote instrumentation, JPEG-style image compression algorithms and other key enhancements, Alexander Pines and members of his research group have been able to use Nuclear Magnetic Resonance (NMR) spectroscopy and Magnetic Resonance Imaging (MRI) to image materials flowing through microfluidic “lab-on-a-chip” devices and zoom in on microscopic objects of particular interest with unprecedented spatial and time resolutions.

Read more: NMR/MRI for microfluidics

   

Tea leaves identified using ICP and neural networks

Tea-ICP-ANN-sA team of chemists from the University of Seville, Spain, has managed to distinguish between different kinds of tea leaves on the basis of their mineral content and by using artificial neural networks. This technique makes it possible to differentiate between the five main varieties of tea—white, green black, Oolong and red tea.

Read more: Tea leaves identified using ICP and neural networks

   

Cocaine stored in alcohol: Raman and magnetic resonance test from outside the bottle

cocaine-sIn two studies published today in the journal Drug Testing and Analysis, UK and Swiss research teams reveal two techniques proven to identify dissolved cocaine in bottles of wine or rum. These tools will allow customs officials to quickly identify bottles being used to smuggle cocaine, without the need to open or disturb the container.

Read more: Cocaine stored in alcohol: Raman and magnetic resonance test from outside the bottle

   

Subcutaneous oxygen levels by NIR may predict surgical infection risk

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NIR-O2-sA simple technique for measuring subcutaneous oxygen concentrations by NIR spectroscopy may help to identify patients at high risk of developing infections after surgery, reports a study in Anesthesia & Analgesia, official journal of the International Anesthesia Research Society (IARS).

Read more: Subcutaneous oxygen levels by NIR may predict surgical infection risk

   

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    Hello I was wondering if the infrared... 1 month ago
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