HOME >> BIOLOGY >> NEWS
Scientists report how protons induce water cages

New Haven, Conn. Researchers from Yale University, University of Pittsburgh and University of Georgia have reported new data on how the fundamental arrangement of water molecules is affected by the presence of protons. The work appears in Sciencexpress.

This research is about the surprising flexibility of water molecules that makes water the medium of choice for biological systems. The study examines the 50-year-old question of how many water molecules share a proton, a crucial issue in the transportation of charge in biological processes.

Models predict a proton to be strongly bound to one water molecule (Eigen model) or shared between two water molecules (Zundel model) in a manner that depends on how many water molecules are available. With 21 molecules, it was thought that the water could form a "nanocage" structure that holds the Eigen form of the proton in the center. This report confirms the formation of a dodecahedral (20-sided) cage, but the data displayed no trace of the Eigen species.

To determine how a precisely determined number of water molecules interconnect to form these cages, the scientists first weighed the cluster (after the proton was added), and then monitored changes in the infrared absorption that occurred upon addition of each new water molecule.

"The idea was brought to my attention by John Fenn, Yale Professor Emeritus of Chemical Engineering and Nobel Prize winner in Chemistry '02," said Mark Johnson, professor of chemistry and head of the Yale research team. "Fenn suggested that we might be able to crack this important problem with current technology. We collaborated with groups at Pitt and Georgia using experimental techniques developed in my lab and analyzed the results using Pitt's super computers."

"Water is tricky because sometimes it is just a solvent. Like with coffee. All water does for me is hold the caffeine there, evenly distributed throughout
'"/>

Contact: Janet Rettig Emanuel
janet.emanuel@yale.edu
203-432-2157
Yale University
30-Apr-2004


Page: 1 2

Related biology news :

1. Scientists to prototype cyberinfrastructure for research and education access to ocean observatories
2. Scientists sequence genome of kind of organism central to biospheres carbon cycle
3. Scientists find nanowires capable of detecting individual viruses
4. Scientists discover potential new way to control drug-resistant bacteria
5. Scientists explore genome of methane-breathing microbe
6. Scientists decipher genetic code of biothreat pathogen
7. Stuck on you: Scientists lay bare secrets of bacterial attachment proteins
8. Scientists discover proteins involved in spread of HIV-1 infection
9. Scientists fear new Ebola outbreak may explain sudden gorilla disappearance
10. Scientists reinvent DNA as template to produce organic molecules
11. Scientists visualise cellular handmaiden that restores shape to proteins

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:7/2/2020)... ... July 01, 2020 , ... AltruBio Inc. ... of Neihulizumab, a biologic for the treatment of steroid-refractory acute graft-versus-host disease (SR-aGVHD), ... Dr. Paul J Martin of the Fred Hutchinson Cancer Research Center, this single-arm, ...
(Date:6/28/2020)... , ... June 25, 2020 ... ... enterprise software solutions for biopharmaceutical R&D, today announced that it has entered ... innovative, full-length multispecific antibodies (Multiclonics®), to support their translational and clinical research ...
(Date:6/23/2020)... MILTON KEYNES, England (PRWEB) , ... June 23, ... ... operations in Africa supporting sustainable healthcare, and Renovagen Ltd, a UK supplier and ... rapid response project to support testing operations in the fight against the COVID-19 ...
Breaking Biology News(10 mins):
(Date:7/31/2020)... ... 2020 , ... R3 Stem Cell International is now offering patients the opportunity ... cells total, patients may choose which extremities they would like treated. , Several studies ... Disord. 2016). At R3 International, umbilical cord tissue is obtained from a lab with ...
(Date:7/31/2020)... ... July 29, 2020 , ... Editas Medicine, ... provider of advanced delivery technologies, development, and manufacturing solutions for drugs, biologics, cell ... into a strategic partnership whereby Catalent will provide support for the development, manufacturing, ...
(Date:7/22/2020)... ... July 22, 2020 , ... Join experts from ... Sr. Manager Regulatory Solutions, in a one hour live webinar on Thursday, ... body in China for drugs and medical devices. Specifically, for medical devices, the NMPA ...
(Date:7/18/2020)... ... July 17, 2020 , ... dicentra , a leading ... food industries, is pleased to announce that Charles Galea has joined its clinical ... Charles is an accomplished and results-driven sales executive with over 10 years of ...
Breaking Biology Technology:
Cached News: