HOME >> BIOLOGY >> NEWS
Scientists learning to create nanomaterials based on micro-algae patterns

Researchers at the Georgia Institute of Technology have developed a technique to study how unicellular micro-algae, known as diatoms, create their complex cell walls. Researchers hope to learn how diatoms assemble these nanometer-patterned, intricate micro-architectures to find better methods for creating nanomaterials in the laboratory.

Diatoms are natures most gifted nanotechnologists, said Nils Krger, an assistant professor in Georgia Techs School of Chemistry and Biochemistry and the School of Materials Science and Engineering. We want to learn how diatom cell walls are produced because human technology cant make something that intricate by self-assembly processes and under ambient conditions.

Diatoms are single-celled organisms that frequently appear as a brown, slippery coating on submerged stones and as phytoplankton in the open ocean. Tiny pores in the cell wall allow diatoms to exchange nutrients with the environment and remain at the surface of the water to absorb sunlight for photosynthesis. Diatom photosynthesis is responsible for 20 percent of the worlds organic carbon. The pores allow diatoms to be lightweight, but their cell wall gives them a strong mechanical structure. The strength of the cell wall comes from amorphous silica, or silicon dioxide (SiO2) -- virtually the same material as glass.

Diatom cell walls show an enormous diversity in form, most of them amazingly beautiful and ornate, depending on specific biomolecules produced by the diatom, Krger explained. Previous research has shown that uniquely modified proteins called silaffins and extremely long polyamine chains play a role in the structural design of the cell wall. Krger hypothesizes that the structure of the diatom silica critically depends on the type of silaffin present within the diatoms silica-producing organic matrix. Therefore, he expects that changing the silaffin equipment of a diatom cell should result in novel silica nanostructures.


'"/>

Contact: Jane M. Sanders
jsanders@gatech.edu
404-894-2214
Georgia Institute of Technology Research News
6-Dec-2006


Page: 1 2 3

Related biology news :

1. Scientists show that mitochondrial DNA variants are linked to risk factors for type 2 diabetes
2. Scientists prove that disputed Korean stem cell line comes from an unfertilized egg and not cloning
3. Scientists move closer to bio-engineered bladders
4. Scientists find stem cell switch
5. Scientists discover new way to study nanostructures
6. Scientists a step closer to understanding how anaesthetics work in the brain
7. Scientists to make news at Computational Biology Conference
8. Accident-prone? Scientists link brain function to knee injuries
9. Scientists take next step in understanding potential target for ovarian cancer treatment
10. Scientists find brown fat master switch
11. Scientists identify 2 distinct Parkinsons networks

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


(Date:8/3/2020)... , ... August 03, 2020 , ... ... announced a new partnership with medical equipment manufacturer, Spectrum Solutions, to provide COVID-19 ... to strengthen their laboratory supply chain for more than 10 years. Early in ...
(Date:7/18/2020)... ... July 16, 2020 , ... A ... of the Invictus Medical Neoasis™ active noise control device to attenuate typical noises ... the Neoasis™ device attenuated the alarm sounds from patient monitors, ventilators and other ...
(Date:7/4/2020)... ... July 03, 2020 , ... ... earn outstanding recognition and multiple awards for not only the products and treatments ... SoME® Skincare and Vivace® Microneedle RF. All the brands built by ABM have ...
Breaking Biology News(10 mins):
(Date:7/31/2020)... ... July 29, 2020 , ... ... transmitter systems that can be configured to drive Klystrons, TWTs, IOTs, and magnetrons. ... drive one or two switches in a push-pull configuration; yielding fast fall time ...
(Date:7/31/2020)... ... July 30, 2020 , ... Alucio™, ... announced the release of its signature product called Beacon - a content ... other field medical professionals. , Beacon helps MSLs streamline communication and ...
(Date:7/18/2020)... ... July 17, 2020 , ... dicentra , a ... and food industries, is pleased to announce that Charles Galea has joined its ... , Charles is an accomplished and results-driven sales executive with over 10 years ...
(Date:7/7/2020)... ... 2020 , ... R3 International is now offering stem cell therapy for Alzheimers ... Depending on the patient's condition, treatment may be offered IV, intrathecal or with a ... of Alzheimers dementia, and the incidence continues to increase as individuals live longer. There ...
Breaking Biology Technology:
Cached News: