Navigation Links
Not just cars, but living organisms need antifreeze to survive
Date:2/19/2013

tein is a hyperactive AFP with a potency to arrest ice growth that is hundreds of times greater than the potency of fish and plant AFPs.

In their study, published in the American journal PNAS (Proceedings of the National Academy of Sciences), the international team of researchers biochemically created a fluorescent marker version of the AFP that allowed for direct observation under a microscope lens. They injected this protein into custom-designed microfluidic devices with minute diameter channels.

The microfluidic devices were placed in cooling units engineered with a temperature control at the level of a few thousandth of a degree, so that ice crystals of 20 to 50 micrometers could be grown and melted controllably, all under microscopic observation.

Using their specialized system, the researchers were able to show that ice grown and incubated in an antifreeze solution remains coated with protein and therefore protected. They further showed that the AFPs bind ice directly and strongly enough so as to prevent the ice from growth even after there is no longer any further presence of protein in the solution.

The significance of the findings published in this study is not only on the scientific level but also practical. For example, fish AFPs are already used in low-fat ice cream to prevent ice recrystallization, thereby maintaining a soft, creamy texture. These proteins could be used in other frozen foods for maintaining the desired texture without additional fats, say the researchers.

In medicine, AFPs can be used to improve the quality of sperm, ovules and embryos stored in a frozen state, and for cold or cyropreservation of organs (freezing at extremely low temperatures) for transplantation. They can also be used in cryosurgery and in agriculture.

Other studies on AFPs focus on preparation of recombinant plants and fish with improved survival rates under cold and dehydration conditions. Such
'/>"/>

Contact: Jerry Barach
jerryb@savion.huji.ac.il
972-258-82904
The Hebrew University of Jerusalem
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. ArcticNet recommends practical solutions to improve standard of living in Canadas north
2. Malnutrition -- Living hungrily ever after
3. NIH grant funds Boston College research into illnesses afflicting people living with HIV
4. Peering into living cells -- without dye nor fluophore
5. Nanostructures with living cells
6. Biologistics: How fast do chemical trains move in living cells?
7. Bats split on family living
8. Black piranha, megapiranha have most powerful bites of fish living or extinct, finds GW researcher
9. Long-distance solute transport in trees improved by intercellular pathways in living woody tissues
10. Ancient microbes found living beneath the icy surface of Antarctic lake
11. Soft Robotics: A groundbreaking new journal on engineered soft devices that Interact with Living Systems
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Not just cars, but living organisms need antifreeze to survive
(Date:7/25/2014)... people lived on the land now called California, and ... availability of plants they used for food, fuel, tools, ... maintain desired habitat and natural resources. , Frank Lake, ... Station, will lead a field trip to ... Society of America,s 99th Annual Meeting, in Sacramento, Cal. ...
(Date:7/25/2014)... 2014)The link between autism and disrupted brain development ... the disease, and is largely unknown. However, thanks ... Initiative (SFARI), George Washington University (GW) researcher Anthony-Samuel ... integrative and in-depth answers to these key questions ... LaMantia, professor of pharmacology and physiology at the ...
(Date:7/25/2014)... engineering at the University of Houston, has written ... organ development., "Introduction to Tissue Engineering: Applications and ... the field of artificial organ development. Metin Akay, ... UH, served as a series editor on the ... published books on the subject of growing artificial ...
Breaking Biology News(10 mins):Fire ecology manipulation by California native cultures 2Fire ecology manipulation by California native cultures 3GW researcher receives grant to answer the how and why of autism during development 2University of Houston researcher publishes textbook on tissue engineering 2
... cells called macrophages can destroy tumor cells by producing ... the environment inside the tumor somehow halts this production ... promote tumor growth. The new study ... switch. This protein normally stimulates protective inflammation. But in ...
... ability every aging Hollywood star would envy: they can ... the May 19 issue of the Journal of ... London, UK) and collogues have pinned down a protein ... that might help researchers understand why myelin production falters ...
... Fla. (May 19, 2008) The current issue of ... by researchers seeking new ways to treat Parkinsons disease ... and slowed physical movements related to insufficient levels of ... by using primate models to examine the potential therapy ...
Cached Biology News:Neural cell transplants may help those with Parkinson's disease 2Neural cell transplants may help those with Parkinson's disease 3
(Date:7/24/2014)... 2014  ECC West Africa, LLC (ECC) signed a ... University College Hospital (UCH) Ibadan Board of Management for ... design, construct, and operate and maintain a new, state-of-the-art ... Under the first of the 4-phase project, ECC will ... applications. UCH Ibadan intends to finance and develop the ...
(Date:7/24/2014)... Yet, scientists are making progress in devising suitable ... approach relies on quantum dotsa kind of artificial ... A new study demonstrates that changing the coupling ... electrical impulses can help better control them. This ... as quantum information units, which would produce faster ...
(Date:7/24/2014)... July 24, 2014 Research and Markets ... Cell Culture Market 2014-2018" report to their offering.  ... Cell culture is the in vitro growth of plant ... cell studies, and biopharmaceutical production. Cell culture is a ... culture instruments and cell culture consumables are necessary for ...
(Date:7/24/2014)... Calif. , July 24, 2014 SRI ... contract with the National Institute of Allergy and Infectious ... to conduct preclinical development of potential therapies for HIV ... drugs to treat HIV and AIDS and the complications ... as microbicides for preventing sexual transmission of HIV. ...
Breaking Biology Technology:ECC Signs a Contract for the Finance, Design, and Construction of a Premier Cancer Institute in Ibadan, Nigeria 2Global Cell Culture Market 2014-2018: Key Vendors are Becton, Dickinson and Co, EMD, GE Healthcare, Lonza Group, Sigma Aldrich and Thermo Fisher Scientific 2National Institute of Allergy and Infectious Diseases Awards SRI International Contract to Study New Therapies for HIV and AIDS 2National Institute of Allergy and Infectious Diseases Awards SRI International Contract to Study New Therapies for HIV and AIDS 3
... RADI Medical Systems today,announced improvements to their ... which will begin shipments immediately., (Photo: ... generation of the PressureWire(R) Certus features a ... key,advantages for physicians. The new large entry ...
... /Xinhua-PRNewswire-FirstCall/ -- China-Biotics,Inc. (OTC Bulletin Board: CHBT) ... in the manufacture, research, development,marketing and distribution ... China-Biotics, Chief Technology Officer, has been invited ... Annual Food Safety Technology Forum,2008 (the "Forum")., ...
... Milestones and Maintain ... Commitment to Strategy, ... Inc.,(TSX: MGI, OTC: MGIFF), a clinical-stage developer of drugs for ... shareholders,for the purpose of acquiring control of MIGENIX,s board of ...
Cached Biology Technology:RADI Medical Systems Launches Next Generation PressureWire(R) Certus 2China-Biotics, Inc. to Present at China's 3rd Annual Food Safety Technology Forum 2008 2China-Biotics, Inc. to Present at China's 3rd Annual Food Safety Technology Forum 2008 3MIGENIX Corporate Update and Requisition of Special Meeting 2MIGENIX Corporate Update and Requisition of Special Meeting 3MIGENIX Corporate Update and Requisition of Special Meeting 4MIGENIX Corporate Update and Requisition of Special Meeting 5MIGENIX Corporate Update and Requisition of Special Meeting 6MIGENIX Corporate Update and Requisition of Special Meeting 7MIGENIX Corporate Update and Requisition of Special Meeting 8
... Todays research and biologic production demands ... guesswork to confirming viable cell populations. Therefore, ... cells must be determined accurately and precisely. ... an automatic and cost effective means to ...
... SureLINK Bioconjugation Kit provides a powerful yet ... and nuceleic acids. The kit provides the ... reagents for quantifying conjugation efficiencies. It enables ... biotin and other tags with a variety ...
... the sensitivity and versatility you expect from ... counting with selected photomultipliers ensure superior sensitivity ... with up to 2 reagent injectors the ... assays as well as other luminescence applications ...
Cell Culture Flask, 25 cm, tissue-culture treated polystyrene...
Biology Products: