News tagged with dna molecules

Researchers use light to switch on gene expression

Imagine being able to control genetic expression by flipping a light switch. Researchers at North Carolina State University are using light-activated molecules to turn gene expression on and off. Their method enables greater ...

May 10, 2012
5 / 5 (2) 0 | with audio podcast

Nanofluidics sorts DNA for cancer research

(Phys.org) -- Cornell nanotechnology researchers have devised a new tool to study epigenetic changes in DNA that can cause cancer and other diseases: a nanoscale fluidic device that sorts and collects DNA, ...

May 24, 2012
5 / 5 (2) 0 | with audio podcast

New calculations solve an old problem with DNA

The normal (B-form) DNA will switch to left-handed DNA when it is physically twisted, or when a lot of salt is added to the solution. Researchers at the University of Luxembourg were able to accurately calculate for the ...

Dec 21, 2012
5 / 5 (2) 0

Advance in nanotech gene sequencing technique

(Phys.org) —The allure of personalized medicine has made new, more efficient ways of sequencing genes a top research priority. One promising technique involves reading DNA bases using changes in electrical ...

May 20, 2013
5 / 5 (2) 0 | with audio podcast

A roundabout route to protein production

Proteins are typically encoded by linear strands of messenger RNA (mRNA). These mRNA molecules are translated into polypeptide chains by ribosomes, with each ribosomal read-through of the mRNA generating ...

Jul 12, 2013
5 / 5 (2) 0

Nanopores light up for reading out DNA

Nanopores are ideally suited for threading DNA molecules through them, enabling the genetic code to be read out. Researchers from TU Delft want to make this technology even more powerful by equipping the ...

Sep 12, 2013
5 / 5 (2) 0

New technology for bioseparation

Separating target molecules in biological samples is a critical part of diagnosing and detecting diseases. Usually the target and probe molecules are mixed and then separated in batch processes that require ...

Sep 17, 2013
5 / 5 (2) 0