HOME >> BIOLOGY >> NEWS
Artificial cell gets light-powered nanopump for calcium ions

Artificial cells, or liposomes, are a promising area in biotechnology and nanotechnology, and now they have a new power source. An experimental finding has revealed a new method for converting light to stored chemical energy within the cells.

A team headed by Arizona State University chemistry professors Thomas Moore and Devens Gust has developed a light-powered molecular pump that shuttles calcium ions through a phospholipid membrane calcium ion pumping that resembles various key cellular activities in living organisms, but engineered to be powered by light through specially designed molecules.

The research is reported in the November 28 issue of the journal Nature by Ira M. Bennett, Hebe M. Vanegas Farfano, Federica Bogani, Alex Primak, Paul A. Liddell, Ana L. Moore, Thomas A. Moore and Gust from Arizona State University and Luis Otero, Leonides Sereno and Juana J. Silber from Universidad National de Rio Cuarto in Argentina.

Beginning with an artificial membrane composed of a bilayer of phopholipids (similar to the lipid bilayers that form the membranes of living cells), the team created "shuttle" molecules that were soluble inside the lipid layer of the membrane, but not in the water inside and outside the "cell." These molecules, through the addition or removal of electrons, bind calcium ions at the outside surface of the liposome (these ions are water soluble and not ordinarily able to enter the oily lipid environment of the membrane), take them across the membrane, and release them at the membrane's inner surface. The ions, which cannot remain in the lipid environment, go to the water solution inside the cell, raising its concentration of calcium ions.

The operation is controlled by an "artificial reaction center" molecule (modeled after similar natural molecules used in the biological process of photosynthesis) which is directionally positioned across the membrane and donates and reabsorbs electrons at its opposite ends in re
'"/>

Contact: James Hathaway
hathaway@asu.edu
480-965-6375
Arizona State University
27-Nov-2002


Page: 1 2 3

Related biology news :

1. Study: Artificial sweetener may disrupt bodys ability to count calories
2. Artificial light-dark cycles expose circadian clocks at odds with each other
3. Artificial prions created
4. Artificial organ research findings presented by University of Pittsburgh researchers
5. Artificial life experiments show how complex functions can evolve
6. Artificial intelligence, swimmer detectors, and blast resistant structures
7. Artificial antibodies created by new molecular imprinting process
8. Artificial lung on the horizon, reports University of Pittsburgh researcher at International Society for Heart and Lung Transplantation meeting
9. Artificial muscles release medicine from tiny implants
10. Artificial chromosomes could cure diseases
11. Artificial Gels Could Speed DNA Sequencing

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


(Date:3/27/2021)... ... March 25, 2021 , ... Phlexglobal announced ... Planet Group, has selected Phlexglobal and its innovative regulatory SaaS software, PhlexSubmission, as ... a comprehensive review of five regulatory software companies, with the review team including ...
(Date:3/27/2021)... ... 25, 2021 , ... The 2021 Virtual Conference on Clinical Trial Supply-Europe ... More and more, clinical trial supply conferences are featuring speakers and forums that ... Asymmetrex’s founder and CEO, James L. Sherley, M.D., Ph.D., presented a talk ...
(Date:3/23/2021)... ... March 23, 2021 , ... G-CON Manufacturing (G-CON), the ... by Matica Biotechnology (Matica Bio), a contract development and manufacturing organization (CDMO) specializing ... the cleanroom build out for its new GMP production facility in College Station, ...
Breaking Biology News(10 mins):
(Date:3/27/2021)... ... March 24, 2021 , ... ... Life Sciences and Healthcare firms of all sizes, adds depth to its team ... specialist. Pardillo, who earned his doctorate in computational chemistry from Florida International University ...
(Date:3/27/2021)... ... March 24, 2021 , ... ABI Wellness, ... and reporting approach designed under CEO Mark Watson, today announced a webinar dedicated ... featuring guest speakers Dr. Cameron Clark, Neuropsychologist and Founder of Sharp Thinking, and ...
(Date:3/27/2021)... ... ... The Xtalks editorial team is pleased to announce the launch of the ... joined by editorial team members Ayesha Rashid, Sydney Perelmutter and Mira Nabulsi to discuss ... including insights from industry experts. , The Xtalks Life Science podcast will feature ...
(Date:3/23/2021)... Conn. (PRWEB) , ... March 23, 2021 , ... ... develops solutions for characterizing microbiome populations down to the strain level, recently unveiled ... applications. , Not all microbes are created equal: some are easy to ...
Breaking Biology Technology:
Cached News: