Research News

New Raman imaging technology offers in vivo imaging

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.

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Raman maps graphene strain

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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.

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Raman spectroscopy offers rapid analysis of kidney stones

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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.

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New infrared source for ultrahigh molecular sensitivity

A new infrared light source with unprecedented sensitivity allows molecular fingerprints of cancer cells.

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Using TERS to explore catalytic reactions at the nanoscale

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.

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Ultrafast spectroscopy shows that the structural memory of water persists on a picosecond timescale

Ultrafast infrared spectroscopy has shown that long-lived sub-structures exist in liquid water by measuring the vibrations of the O–H bonds.

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Raman microscopy to study crystallographic defects in silicon carbide wafers

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.

Read more: Raman microscopy to study crystallographic defects in silicon carbide wafers

   

SERS blood test for colon cancer

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.

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NIR probe can monitor shock from haemorrhages without drawing blood

In initial tests, a novel near infrared spectroscopy device assesses shock severity as accurately as a standard blood sample, without a single needle prick.

Read more: NIR probe can monitor shock from haemorrhages without drawing blood

   

New hybrid AFM/spectroscopy microscope offers unparalleled capabilities

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.

Read more: New hybrid AFM/spectroscopy microscope offers unparalleled capabilities

   

Raman spectroscopy proves a better way to study batteries

Raman spectroscopy helps lithium-air batteries live up to their promise: we could one day be driving electric cars 500 miles or more without recharging, or using laptops for weeks without having to plug in. They could also replace lithium-ion batteries, currently the standard in many consumer electronics.

Read more: Raman spectroscopy proves a better way to study batteries

   

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