A team of researchers has demonstrated a new type of imaging system based on Raman spectroscopy that reveals the chemical composition of living tissue for medical diagnostics and cellular studies.
Using Raman spectroscopy and statistical analysis, an international group of scientists has succeeded in taking nanoscale measurements of the strain present at each pixel on the surface of graphene. The researchers also obtained a high-resolution view of the chemical properties of the graphene surface.
Kidney stones rank among the most common illnesses. Their recurrence may be prevented with the right post-operative care. However, for this to be effective, the composition of the stones needs to be known. Fraunhofer researchers are developing a Raman spectroscopy based system for rapid analysis of urinary stones immediately after the surgical procedure.
A new infrared light source with unprecedented sensitivity allows molecular fingerprints of cancer cells.
The National Physical Laboratory (NPL) in the UK has used tip-enhanced Raman spectroscopy to map catalytic reactions at the nanoscale for the first time.
Ultrafast infrared spectroscopy has shown that long-lived sub-structures exist in liquid water by measuring the vibrations of the O–H bonds.
Raman microscopy is being used alongside high-resolution X-ray diffraction to unpick the reasons for crystallographic defects in SiC bulk crystal and epitaxial film, which limit the commercialisation of SiC devices.
Canadian researchers have used SERS to screen blood samples for molecular traces that indicate the presence of precancerous polyps in the colon, a key warning sign for colon cancer. Their results may yield a cheaper and less invasive initial screening test for colon cancer that could complement colonoscopy, though further clinical trials will need to demonstrate the safety and effectiveness of the blood test before it is routinely used.
In initial tests, a novel near infrared spectroscopy device assesses shock severity as accurately as a standard blood sample, without a single needle prick.
A microscope being developed at the US Department of Energy’s Oak Ridge National Laboratory will allow scientists studying biological and synthetic materials to simultaneously observe chemical and physical properties on and beneath the surface.
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- Atomic absorption
- Atomic emission
- Ion mobility
- Laser spectroscopy
- Mass spectrometry
- Near infrared
- NMR ESR EPR
- North America
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- RMs and standards
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