Navigation Links
UAB scientists discover the origin of a mysterious physical force

Ever since the 1970s, scientists have been trying to establish the cause of a repulsive force occurring between different electrostatically charged molecules, such as DNA and other biomolecules, when they are very close to each other in aqueous media. This force became know as hydration force.

Jordi Faraudo, a researcher for the Department of Physics at the Universitat Autònoma de Barcelona, and Fernando Bresme of the Department of Chemistry at Imperial College London have studied this mysterious force in detail and have discovered where its origins lie.

In the same way that a flag flutters in the direction the wind is blowing, at a microscopic level water molecules are gently attracted towards the direction in which an electric field is pointing. However, when the water is in contact with surfaces that create small electric fields, such as chemical compounds like those found in many detergents, this is no longer the case: the water molecules have a remarkable capacity to organise themselves into complex structures that are strongly orientated in such a way as to cancel out the electric field, and on some occasions, to reverse it. This abnormal behaviour was discovered by the same researchers and published in Physical Review Letters in April 2004.

The scientists have now discovered that this strange property is responsible for the hydration force that acts when water is surrounded by certain types of electrostatically charged molecules, such as DNA and some biological compounds, and when thin films form in detergents. The discovery has been published in today's edition of Physical Review Letters.

Water is the solvent in which most physical, chemical and biological processes take place. Therefore, it is essential to understand the nature of interactions between molecules dissolved in water in order to understand many of these processes. Two of the most important of these processes are the adherence of substances to cell membranes and th
'"/>

Source:Universitat Autonoma de Barcelona


Page: 1 2

Related biology news :

1. Wisconsin scientists grow critical nerve cells
2. UCSB scientists probe sea floor venting to gain understanding of early life on Earth
3. Fox Chase Cancer Center scientists identify immune-system mutation
4. Weizmann Institute scientists develop a new approach for directing treatment to metastasized prostate cancer in the bones.
5. U-M scientists find genes that control growth of common skin cancer
6. UCLA scientists transform HIV into cancer-seeking missile
7. RNA project to create language for scientists worldwide
8. Carnegie Mellon scientists develop tool that uses MRI to visualize gene expression in living animals
9. To control germs, scientists deploy tiny agents provocateurs
10. Leprosy microbes lead scientists to immune discovery
11. Integration of Agilents MS technology, Proteome Systems software to help scientists in proteomics research
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: UAB scientists discover the origin mysterious physical force

(Date:9/2/2014)... New research suggests that professional baseball pitchers with poor ... days in a single season because of injury than are ... back and pelvis. , In the study, 347 pitchers were ... tilt in their pelvis as they raised a leg to ... miss at least 30 days cumulative, not consecutive ...
(Date:9/2/2014)... study published in the September issue of ... a novel strategy to diagnose the leading cause ... structural damage has occurred. This advance involves quantifying ... the endothelium of retinal vessels. Using new probes ... the early molecular development of diabetic retinopathy. , ...
(Date:9/2/2014)... Best-selling author Sam Kean stops by Reactions this ... 50-foot super shark that, despite what "Shark Week" may ... about it at http://youtu.be/KhFygIoW_MA . , Kean,s book, ... Love and the History of the World from the ... treatment in a 10-episode video series produced for the ...
Breaking Biology News(10 mins):In pro baseball pitchers, weak core linked to more missed days 2In pro baseball pitchers, weak core linked to more missed days 3Molecular probes permit doctors to detect diabetic retinopathy before vision fails 2
... optogenetics, the researchers are able to target one cell ... to find out exactly what goes wrong in the ... Prof. Dr. Stefan Herlitze (RUB Department for Biology and ... Biological Chemistry . The Bochum team examined a specific ...
... MD FASEB MARC (Minority Access to Research Careers) ... 2011 Society for Leukocyte Biology (SLB) Meeting in Kansas ... are meant to promote the entry of underrepresented minority ... basic science community and to encourage the participation of ...
... - Researchers speaking on the final day of the 6th ... 2011) have focused on the growing interest in the scientific ... have been growing over the past 12 months and are ... Society (IAS) convened working group concentrating its initial efforts on ...
Cached Biology News:Controlling movements with light 2 Researchers present new trends in HIV cure research, call for proactive outreach programs to prevent HIV transmission in injecting drug users, and demand increased commitments to improving maternal and child health 2 Researchers present new trends in HIV cure research, call for proactive outreach programs to prevent HIV transmission in injecting drug users, and demand increased commitments to improving maternal and child health 3 Researchers present new trends in HIV cure research, call for proactive outreach programs to prevent HIV transmission in injecting drug users, and demand increased commitments to improving maternal and child health 4
(Date:9/2/2014)... of what happens on the surface of cells. The ... A group of researchers from Lund University in Sweden ... a large number of vertical nanowires, known as a ... cell and its surroundings takes place through the cell ... the cell together and that largely comprises lipids, built ...
(Date:9/2/2014)... AVENTURA, Fla. , Sept. 2, 2014  Technology ... has announced that its wholly-owned subsidiary Renuell Int,l, Inc. ... National Aeronautics and Space Administration ("NASA") at the Johnson ... See photos: tapplic.com/houstonphotos/ ... stated, "We are very pleased to announce our latest, ...
(Date:9/2/2014)... 2014 /PRNewswire/ - Oncothyreon Inc. (Nasdaq: ONTY ) announced ... Executive Officer, will present at the Rodman & Renshaw 16 ... York on Tuesday, Sept. 9, 2014 at 2:05 ... of the presentation will be accessible by visiting the Oncothyreon ... About Oncothyreon Oncothyreon is ...
(Date:9/2/2014)... , September 2, 2014 Culot ... research and lab management services  BioData, producer ... is pleased to announce the appointment of Louis ... recently served as VP Marketing and Business Development at ... research and clinical applications. Previously, Culot worked ...
Breaking Biology Technology:Nano-forests to reveal secrets of cells 2Technology Applications International Corporation Subsidiary Enters Into Additional Exclusive Agreement with NASA at a Signing Ceremony at the Johnson Space Center In Houston, Texas 2Technology Applications International Corporation Subsidiary Enters Into Additional Exclusive Agreement with NASA at a Signing Ceremony at the Johnson Space Center In Houston, Texas 3Louis Culot Appointed as BioData's CEO 2
... ... Delay, LEXINGTON, Mass., ... Glenn L. Cooper,MD, its chairman and chief executive officer is postponing his,previously-announced ... of the recent delay in the approval of NEBIDO(R)., Dr. Cooper ...
... Raymond J. De,Hont, Chairman and Chief Executive Officer ... Fybroc business unit has received,an order for approximately $500,000 ... second and third quarters of the Company,s current fiscal ... order Fybroc has received this year from the,Eastern European ...
... Cell Therapeutics, Inc.,(Nasdaq and MTA: CTIC) today announced that ... million, newly issued 15% Convertible,Senior Notes due 2011, with ... warrant to purchase approximately 14.6 million shares of common ... This transaction constitutes a partial exercise of a previously ...
Cached Biology Technology:Indevus Announces Management Changes 2Indevus Announces Management Changes 3Indevus Announces Management Changes 4Met-Pro Corporation's Fybroc Business Unit Receives Equipment Order Totaling Approximately $500,000 2Met-Pro Corporation's Fybroc Business Unit Receives Equipment Order Totaling Approximately $500,000 3Cell Therapeutics, Inc. Announces Issuance of 2011 Convertible Senior Notes and Common Stock Warrants to a Single Institutional Investor 2
... development to targets including proteins and to ... cancer-specific surface antigens. A&Gs service is ... in approximately 40 days (duration may vary ... Phase I: Immunization, test bleed and ...
... Immunogen: Synthetic peptide derived from an ... protein. Specificity: Specific for the ... WNT2B/WNT13 proteins. Recognizes both human WNT13A ... Human Rat (positive controls: mouse WNT2B/WNT13-pCMV-tag2-transfected ...
... Clone/PAD: ZMD.460. Immunogen: Synthetic ... the human C35 protein (chromosome 17 open ... Specificity: Specific for the C35 protein. ... band at ~15 kDa band. Reactivity: ...
...
Biology Products: