Using an approach called DNA origami, scientists at Caltech have developed a technique that could lead to cheaper, reusable biomarker sensors for quickly detecting proteins in bodily fluids, eliminating the need to send samples ...
Bio & Medicine
10 hours ago
0
45
Imagine if antibodies, proteins such as insulin, or even COVID-19 and flu vaccines could be consumed orally instead of via injection. This vision is closer than ever, according to a new study by Technion researchers published ...
Bio & Medicine
11 hours ago
0
2
Strep throat, something we've all had at some point in our lives, is caused by the bacteria Streptococcus pyogenes. Infection by Streptococcus can be fatal in serious cases and is the leading cause of death among flesh-eating ...
Molecular & Computational biology
Feb 10, 2025
0
69
An unplugged electric instrument may function, but it sounds much better when it is connected to an amplifier. Similarly, toxins and other small molecules at low concentrations in the environment or human body may emit quiet ...
Biochemistry
Jan 13, 2025
0
82
By deducing the possible ancient forms of a bacterial enzyme, OIST scientists have resurrected one of its ancestral versions, with a comparably higher ability to chemically modify RNA.
Molecular & Computational biology
Dec 2, 2024
0
3
Cells can now be genetically programmed to record their histories within their genomes, a development that could revolutionize the study of developmental and disease processes, according to a collaborative work by researchers ...
Johns Hopkins engineers have developed gel strips that change shape when given chemical instructions written in DNA code. These "gel automata," measuring just centimeters, can grow or shrink, transforming from one letter ...
Biotechnology
Nov 25, 2024
0
158
Biosensors play a key role in medical research and diagnostics. At present, however, they generally have to be specially developed for each application. A team led by LMU chemist Philip Tinnefeld has developed a general, ...
Bio & Medicine
Nov 8, 2024
0
12
Biological cells are incredibly complex mixes of proteins, nucleic acids, lipids and carbohydrates. A model developed by two RIKEN researchers helps explain why components of the same type sometimes do and sometimes don't ...
Molecular & Computational biology
Oct 31, 2024
0
34
A research team led by Prof. Hans-Curt Flemming from the Institute of Oceanology of the Chinese Academy of Sciences (IOCAS) has reported on the role of extracellular polymeric substances of biofilms in a study published in ...
Cell & Microbiology
Oct 31, 2024
0
19
A nucleic acid is a macromolecule composed of chains of monomeric nucleotides. In biochemistry these molecules carry genetic information or form structures within cells. The most common nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Nucleic acids are universal in living things, as they are found in all cells and viruses. Nucleic acids were first discovered by Friedrich Miescher in 1871.
Artificial nucleic acids include peptide nucleic acid (PNA), Morpholino and locked nucleic acid (LNA), as well as glycol nucleic acid (GNA) and threose nucleic acid (TNA). Each of these is distinguished from naturally-occurring DNA or RNA by changes to the backbone of the molecule.
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