Measuring pH locally with terahertz spectroscopy

New method to determine a local pH value near a specific site of a biomolecule

24-Nov-2020 - Nowadays, it is easy to determine an average pH for larger quantities of liquid. It is a challenge, however, to define a local pH value. Researchers at Ruhr-Universität Bochum have developed a new method to determine a local pH value near a specific site of a biomolecule. A reliable measurement ...

Solid-state physics offers insights into dielectric properties of biomaterials

11-Jan-2018 - A team of Russian, Czech and German researchers gained a new perspective on the properties of three materials of biological origin. Besides two reference materials with well-studied properties -- serum albumin and cytochrome C -- the researchers looked at the extracellular matrix of the ...

Wave of the future

Terahertz chips a new way of seeing through matter

10-Feb-2017 - Electromagnetic pulses lasting one millionth of a millionth of a second may hold the key to advances in medical imaging, communications and drug development. But the pulses, called terahertz waves, have long required elaborate and expensive equipment to use. Now, researchers at Princeton ...