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:10/13/2017)... ... 2017 , ... Many families have long-term insurance that covers care for a ... waiver for care if the client has a cognitive impairment diagnosis. , “What ... is often waived, so the benefits from their insurance start immediately,” said Mechell Vieira, ...
(Date:10/13/2017)... ... October 13, 2017 , ... Talented host, ... lowdown on sciatica in a new episode of "Success Files," which is an ... and innovation and investigates each subject in-depth with passion and integrity. , Sciatica ...
(Date:10/12/2017)... (PRWEB) , ... October 12, 2017 , ... ... are now treating sleep apnea using cutting-edge Oventus O2Vent technology. As ... serious sleep disorder characterized by frequent cessation in breathing. Oral appliances can offer ...
(Date:10/12/2017)... ... October 12, 2017 , ... Asante, a nationally recognized health ... expanded their existing home health joint venture through an agreement, effective October 1, ... joint venture home health company with Asante, delivering clinically integrated care, for the ...
(Date:10/12/2017)... ... October 12, 2017 , ... On Saturday, October 21, the Health ... Miles by Moonlight to raise money for the American Heart Association Heart Walk. Teams ... Teams will work together to keep their treadmills moving for 5 hours. Treadmills will ...
Breaking Medicine News(10 mins):
(Date:9/27/2017)...  Commended for their devotion to personalized service, SMP Pharmacy ... one in the South Florida Business Journal,s 50 Fastest-Growing Companies, ... list, the national specialty pharmacy has found its niche.  To ... soon be honored by SFBJ as the 2017 Power Leader ... to receive his award in October, Bardisa said of the ...
(Date:9/22/2017)... -- As the latest Obamacare repeal effort moves is debated, ... and Lindsey Graham (R-SC) medical device market ... is in an odd place.  The industry wants repeal ... on medical device sales passed along with the Affordable ... visits and hospital customers with the funding to invest ...
(Date:9/18/2017)... Sept. 18, 2017 EpiVax, Inc. ... bioinformatics and immune engineering, today announced a ... A (H7N9) vaccine. ... seasonal influenza and presents a challenge for ... exposure to be effective. Using state-of-the-art bioinformatics and ...
Breaking Medicine Technology: