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:9/30/2014)... pregnanteven with IVF? Here,s some hope: A new research ... The FASEB Journal , explains how scientists developed ... PAWP, which induced embryo development in human and mouse ... by the sperm cell during fertilization. , "We believe ... paradigm shift in our understanding of human fertilization by ...
(Date:9/30/2014)... KONG , Sept. 30, 2014 Winners of ... Economist Events, Innovation Summit scheduled to take place at the JW ... the summit, the award winners will share their experiences and the ... who have made a proven innovation over the past decade, will ... the night before the summit. It will be the first ...
(Date:9/29/2014)... According to a NASA story from 2009, "human activities in ... fire emissions issue. Palm oil is increasingly grown for use ... fats in processed foods. It has become the most widely ... in recent years to surpass that of soybean oil. , ... has to be cleared to grow the crop, and the ...
Breaking Biology News(10 mins):Synthetic sperm protein raises the chance for successful in vitro fertilization 2Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 2Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 3Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 4Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 5Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 6Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 7
... announced promising data from a clinical study showing ... cells and immune cells were well tolerated and ... with metastatic melanoma whose disease had been minimized ... entitled "Phase II Trial of Dendritic Cells Loaded ...
... , , , ... http://www.neurotechnology.com ), a biometric identification technologies provider, ... engine for the Indonesian Integrated Biometric Passport Issuance System. ... X/LINK Software, working with ICT Solution Provider PT. Berca Hardayaperkasa, ...
... developed to perform a wide range of medical uses ... Rather than settling for just one of these, researchers ... in one tiny package. , The result is ... for medical imaging and therapy. The structure is described ...
Cached Biology News:Study shows cancer vaccines led to long-term survival for patients with metastatic melanoma 2Indonesia Now Using MegaMatcher Biometric Technology in Integrated Passport Issuance System 2Indonesia Now Using MegaMatcher Biometric Technology in Integrated Passport Issuance System 3Indonesia Now Using MegaMatcher Biometric Technology in Integrated Passport Issuance System 4All-in-1 nanoparticle: A Swiss Army knife for nanomedicine 2All-in-1 nanoparticle: A Swiss Army knife for nanomedicine 3
(Date:10/1/2014)... METTLER TOLEDO’s newly improved XS balance line ... as well as a dual range microbalance . ... SmartPan™ weighing pan delivers results up to twice as ... ergonomic design details mean users no longer need to ... periods in front of the balance. Barbara Bienlein, medical ...
(Date:10/1/2014)... 2014 Weighing applications in pharmaceutical ... final product. However, while the pharmaceutical industry is ... as Good Manufacturing Practices (GMP) usually provide only ... manufacturer to interpret these guidelines and assess process ... METTLER TOLEDO experts have created a new white ...
(Date:10/1/2014)... Foster City, CA (PRWEB) October 01, 2014 ... century, it leaves no room for doubt that this century ... and innovations in the field of medicine science. The fact ... health problems is not unknown to the scientific community. Almost ... and pollution and therefore can be prevented with medical care ...
(Date:10/1/2014)... In response to its clients’ ... sales, training and consumer engagement challenges, digital ... applications to turn their clients’ visions into reality. ... mobile app creations, are now featured on its ... with Toyota, StudioPMG created a robust cross-platform mobile ...
Breaking Biology Technology:METTLER TOLEDO’s XS Balance Line Delivers Performance and Ergonomics To Safeguard Health in the Workplace 2METTLER TOLEDO’s XS Balance Line Delivers Performance and Ergonomics To Safeguard Health in the Workplace 3Comply with Weighing-Related Regulations in Pharma Manufacturing 2Fighting Mortality and Morbidity of Chronic Health Disorders during Open Access Week 2Fighting Mortality and Morbidity of Chronic Health Disorders during Open Access Week 3Digital Agency Studio PMG Launches New Case Studies on Website 2
... , , , , , , ... Ependorf Micromanipulator for electro-physiology, , PatchMan, was tested ... Chemistry in Gttingen (Germany)., , , , , ... The Micromanipulator PatchMan was used at MPI for a variety of patch clamp ...
...
... CELLocate Log Sheets for Easily Locating Adhererent , Cells ... , , , ... cells that have been used for microinjection. These ... Using the CELLocate protocol blocks , with the ...
Cached Biology Technology:PatchMan - Test Report 2
... data from balances and scales with RS232 ports ... program. If you can type the weight into ... process Simple to use parser extracts required ... Add user information , Collect data at timed ...
...
Applications: Western blotting ...
...
Biology Products: