Navigation Links
Cultivating gold on a fig tree

Money may not grow on trees, but gold can. In a remarkable experiment, Indian scientists have developed a form of gold using a micro-organism from a fig tree as the 'factory'.
But before rushing to try cultivating fig trees and converting the gold into ornaments, here is a word of caution : The scientists have been able to use the micro- organism to churn out gold nanoparticles 8,000 times smaller than the human hair.//
And therein lies the beauty of the new gold. Being so small , it can have easy access to the cells. Gold being bio- friendly , researchers can piggy - back drug molecules into the very heart of cranky cells that cause diseases and repair them.

These gold nanoparticles could also lead to new ways of detecting diseases and controlling genes and enzymes.
The technology can also be used in developing nanomaterials and nanoelectronics.

The research group took a micro- organism called Rhodococcus from a fig tree, and exposed it to a liquid containing gold ions ( which are electrically charged gold particles).
They found that the micro- organism caused the gold ions to gain electrons , thereby forming gold nanoparticles within the micro - organism's cells.

The new work has been done by researchers from the National Chemical Laboratory (NLC ) and the Armed Forces Medical College ( AFMC ), both in Pune and published in the recent issue of Nanotechnology, the journal of the Institute of Physics.
The journal has hailed the experiment as " green chemistry " because following the biosynthesis of gold nanoparticles in Rhodococcus, its cells continued to multiply normally , as the metal ions used were not toxic to the cells . This eco- friendly step is important as more gold would be formed as the cells multiply.
" This (the nanoparticles) is much more uniform than the particles formed using other biological methods. Having uniformly sized particles will be needed if we are to use this method in biodiagnosis using gold nanoparticles or to deliver therapeutic drugs," he added .
Such gold nanoparticles of uniform size can also be useful in labelling proteins , nucleicacids and other biomolecules.
These nanoparticles are more conecntrated and more uniform in size than particles biosynthesised by previous methods that used a fungus , according to the paper published by Nanotechnology.
Although the exact reaction that causes the gold to form is not yet fully known, the group believes that the Rhodococcus species gives better results because it is a certain type of micro-organism ( an actinomycete) that shows characteristics of both bacteria and fingi, rather than just being a fungus.
The group will soon be looking into making the nanoparticles on a large scale, which could be attained by genetically modifying actinomycetes to produce??more of the enzymes which cause the gold to form.
'"/>




Related medicine news :

1. Chickens Found To Have High Levels of Arsenic
2. Arsenic poisoning reactions can be traced to genes
3. Arsenic May Have Been Responsible For The Madness Of King George III Of England
4. Arsenic in Drinking Water Predisposes Children To Lung Cancer in Later Life
5. Low Doses Of Arsenic Have Broad Impact On Hormone Activity – Says A Researc
6. Arsenic Compound Effective in Treating Rare Leukemia
7. Arsenic in Chicken Feed may Cause Health Complications
8. Less drinking less stroke
9. Arterial stiffness prevented by light drinking
10. Sensible drinking staves off strokes
11. Naltrexone effective for drinking problems
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/23/2017)... ... February 23, 2017 , ... Los Angeles-based weight loss surgeon Michael Feiz, ... June: From Not to Hot,” which will begin airing on February 24, 2017. The ... millions from the 2012 reality television series, “Here Comes Honey Boo Boo.” The earlier ...
(Date:2/23/2017)... ... February 23, 2017 , ... Rosica Communications, ... relations, content marketing, social media management, corporate communications, SEO and cause marketing, is ... and in nearby New Hampshire, Massachusetts and Canada, Rosica will focus on expanding ...
(Date:2/23/2017)... ... February 23, 2017 , ... On April ... diverse symposium on “Doping in Sport: How the Culture Might Change,” ... Hampton LLP. The symposium will be held at Pepperdine University in Malibu, California. ...
(Date:2/23/2017)... (PRWEB) , ... February 23, 2017 , ... ... an exciting, new, interactive publication where generations converge and explore the world from ... their worldview, Dialog Magazine enables readers to gain understanding, increase empathy, and find ...
(Date:2/23/2017)... ... , ... Current Meditation , a new meditation concept ... U.S. starting this spring. Current Meditation focuses on “meditation for the modern world,” ... will be the first meditation concept in the U.S. offering franchising opportunities, setting ...
Breaking Medicine News(10 mins):
(Date:2/24/2017)... Feb 24, 2017 Research and Markets has announced ... 2016" report to their offering. ... The latest research Hemophilia Drugs Price Analysis and Strategies - ... The research answers the following questions: ... How are they positioned in the Global Hemophilia market? ...
(Date:2/24/2017)... 24, 2017  In conjunction with DURECT Corporation,s (Nasdaq: ... press release, you are invited to listen to a ... internet on Tuesday, March 14, 2017 at 4:30 pm ... live audio webcast of the presentation will be available ... clicking "Investor Relations."  If you are unable to participate ...
(Date:2/24/2017)... Feb. 23, 2017 The U.S. Food ... PhenoTest BC Kit, performed on the Pheno System. ... that cause bloodstream infections and provide information about ... to (antibiotic sensitivity). The test also reduces the ... important information, which can guide antibiotic treatment recommendations ...
Breaking Medicine Technology: