Navigation Links
Clay-armored bubbles may have formed first protocells
Date:2/6/2011

Cambridge, Mass. February 7, 2011 A team of applied physicists at Harvard's School of Engineering and Applied Sciences (SEAS), Princeton, and Brandeis have demonstrated the formation of semipermeable vesicles from inorganic clay.

The research, published online this week in the journal Soft Matter, shows that clay vesicles provide an ideal container for the compartmentalization of complex organic molecules.

The authors say the discovery opens the possibility that primitive cells might have formed inside inorganic clay microcompartments.

"A lot of work, dating back several decades, explores the role of air bubbles in concentrating molecules and nanoparticles to allow interesting chemistry to occur," says lead author Anand Bala Subramaniam, a doctoral candidate at SEAS.

"We have now provided a complete physical mechanism for the transition from a two-phase clayair bubble system, which precludes any aqueous-phase chemistry, to a single aqueous-phase clay vesicle system," Subramaniam says, "creating a semipermeable vesicle from materials that are readily available in the environment."

"Clay-armored bubbles" form naturally when platelike particles of montmorillonite collect on the outer surface of air bubbles under water.

When the clay bubbles come into contact with simple organic liquids like ethanol and methanol, which have a lower surface tension than water, the liquid wets the overlapping plates. As the inner surface of the clay shell becomes wet, the disturbed air bubble inside dissolves.

The resulting clay vesicle is a strong, spherical shell that creates a physical boundary between the water inside and the water outside. The translucent, cell-like vesicles are robust enough to protect their contents in a dynamic, aquatic environment such as the ocean.

Microscopic pores in the vesicle walls create a semipermeable membrane that allows chemical building blocks to enter the "c
'/>"/>

Contact: Caroline Perry
cperry@seas.harvard.edu
617-496-3815
Harvard University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. University of Utah microbubbles clean dirty soil in China
2. Liposome-hydrogel hybrids: No toil, no trouble for stronger bubbles
3. Rice physicists kill cancer with nanobubbles
4. Bubble physicist counts bubbles in the ocean to answer questions about climate, sound, light
5. Breakthrough on cystic fibrosis 1 step closer as new research alliance formed
6. Early settlers rapidly transformed New Zealand forests with fire
7. Researchers discover how the storehouses of plant cells are formed
8. Sick of blurred identity, US plant pathologists formed own society
9. After mastodons and mammoths, a transformed landscape
10. Students least informed about environmental science are most optimistic
11. First new C. difficile drug in a generation superior to existing treatments: Researchers
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Clay-armored bubbles may have formed first protocells
(Date:10/16/2014)... severe respiratory tract infections and worldwide claims the ... VIB and Ghent University have succeeded in developing ... virus infection. , Xavier Saelens (VIB/UGent): "We ... way for the development of a novel approach ... suffering in numerous small children and elderly people." ...
(Date:10/15/2014)... 15, 2014 Sandata Technologies, LLC, an ... community-based care, today announced it released a case ... Electronic Visit Verification™ Solution (EVV™)  for Quality Care ... health company founded in 1996 and has five ... The study details the challenges facing ...
(Date:10/15/2014)... The German Gauß-Allianz has admitted Johannes Gutenberg University ... the Rhineland-Palatinate science hub continues to maintain a ... computing. , "The acceptance of Johannes Gutenberg ... Gauß-Allianz is a milestone in the national and ... support. The state of Rhineland-Palatinate can be proud ...
Breaking Biology News(10 mins):New perspectives for development of an RSV vaccine 2Sandata Announces Case Study with Quality Care Services, Inc. 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 3
... cells with a surprising capacity for repair, researchers report ... published by Cell Press. The novel insight into the ... implications for the treatment of brain damage, according to ... brains were severely damaged by loss of the genes ...
... at a surprisingly hot 92 degrees Celsius, or 198 ... of nitrogen fixation, perhaps even preceding the kinds of ... nitrogen. , The genetic analysis reported in the ... the gene needed to produce nitrogenase ?an enzyme capable ...
... parade, the cyclic tungsten trioxide clusters line up molecule-by-molecule ... each cluster is raised slightly, holding forth the potential ... a new model system, a simplified version of a ... models reveal to chemists the exact structure and reaction ...
Cached Biology News:Neural stem cells lend the brain a surprising capacity for self-repair 2Microbe fixes nitrogen at a blistering 92 C 2Microbe fixes nitrogen at a blistering 92 C 3Uniform tungsten trimers stand and deliver 2
(Date:10/19/2014)... 2014 The report "Chocolate, Cocoa Beans, ... Prices, Geography Trend and Forecast (2011 - 2016)," ... geography and studies the major market drivers, restraints, and ... and Asia. , The global chocolate market is expected ... in 2016 at an estimated CAGR of 2.7% from ...
(Date:10/18/2014)... October 19, 2014 The “Human ... Acting, Intermediate Acting, Premixed), Modern Human Insulin (Rapid ... Levemir, NovoRapid, Novomix, Tresiba, Others) - Forecast to ... drivers, restraints, challenges, opportunities, current market trends, and ... with the estimates and forecasts of the revenue ...
(Date:10/18/2014)... The Asia-Pacific hardware encryption display market report defines and ... forecast of revenue. This market was valued $5,154.0 million ... by 2018, at a CAGR of 58.4% from 2013 ... Asia-Pacific hardware encryption market report, to get an idea ... glimpse of the segmentation of the market, and is ...
(Date:10/18/2014)... (PRWEB) October 18, 2014 According to ... Resource & Well Type - Global Trends & Forecasts ... estimated $31 billion in 2011. This value is expected ... billion by 2017, with 10% CAGR during the same ... hydraulic fracturing production market in terms of hydraulic horse ...
Breaking Biology Technology:Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 2Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 3Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 4Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 2Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 3Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 4Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 5The Asia-Pacific hardware encryption display market is expected to reach $51,362.6 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific hardware encryption display market is expected to reach $51,362.6 million by 2018 - New Report by MicroMarket Monitor 3Hydraulic Fracturing Market Projected To Reach $64 Billion by 2017 - New Report by MarketsandMarkets 2Hydraulic Fracturing Market Projected To Reach $64 Billion by 2017 - New Report by MarketsandMarkets 3Hydraulic Fracturing Market Projected To Reach $64 Billion by 2017 - New Report by MarketsandMarkets 4
... 26 Mylan Laboratories Inc.,(NYSE: MYL ) will ... Merck,Generics acquisition. Pending the closing, the investor day will ... City. Robert J. Coury, Mylan,s,Vice Chairman and Chief Executive ... Merck Generics and Matrix Laboratories will,provide a detailed financial ...
... 26 Caraco Pharmaceutical,Laboratories, Ltd., (Amex: CPD ... Drug,Administration (FDA) has granted final approval for the ... USP, 5 mg,and 10 mg (Methimazole). Methimazole ... Methimazole is therapeutically equivalent to the FDA reference,listed ...
... AMSTERDAM, September 26 Agendia BV, a world leader ... that,it has joint the US-based Personalized Medicine Coalition (PMC). ... shaping the US public policy on,personalized medicine. We are ... that,will dramatically impact the treatment of patients in the ...
Cached Biology Technology:Caraco Pharmaceutical Laboratories, Ltd. Announces FDA Approval to Market Methimazole Tablets USP, 5 mg and 10 mg 2Agendia Joins the Personalized Medicine Coalition (PMC) 2
Sterile detoxified 10% bovine serum albumin (BSA) in Iscoves MDM. This BSA has been selected to support the optimal colony growth of human hematopoietic progenitor cells in methylcellulose-based medi...
... A full-featured high-performance ICP-MS system designed ... sampling interface, Omega II off-axis ion lens, ... the 7500a can handle the widest range ... 2003, the 7500a now includes as standard ...
... Identical to the DH-2000, except that it ... 190-1700 nm wavelength range and comes with a ... up to 5 Hz) The DH-2000 ... spectrum of deuterium and tungsten halogen light sources ...
One controller two vessel system suitable for early stage of fermentation, and small scale, Application : cultivation of microorganisms and human or animal cells...
Biology Products: