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 , ... Lori R. Somekh, founder of the Law Office of ... elder law and special needs planning attorneys. “Membership in ElderCounsel helps our office remain ... to network with elder law attorneys nationwide,” said Somekh. , ElderCounsel ...
(Date:10/13/2017)... ... October 13, 2017 , ... Many families have long-term ... long-term care insurance companies have a waiver for care if the client has a ... when the family pays for care, is often waived, so the benefits from their ...
(Date:10/13/2017)... ... ... Ellevate Network, the leading network for professional women, brought together some of ... their inaugural Summit in New York City in June. The event was livestreamed with ... 3 million. To watch the Mobilize Women video, click here . , ...
(Date:10/13/2017)... ... October 13, 2017 , ... Yisrayl Hawkins, Pastor and Overseer at The ... the most popular and least understood books in the Holy Scriptures, Revelation. The Book ... have baffled scholars for centuries. Many have tossed it off as mere rubbish, but ...
(Date:10/13/2017)... ... October 13, 2017 , ... Coveros, ... Development, has been awarded a contract by the Center for Medicare and Medicaid ... to accelerate the enterprise use of Agile methodologies in a consistent and high ...
Breaking Medicine News(10 mins):
(Date:10/4/2017)... 2017  South Korean-based healthcare product Development Company I.M. ... on Kickstarter. The device will educate the user about ... better efficiency compared to the dated and pricey CPR ... efficacy of the compression for a more informed CPR ... to raise $5,000. ...
(Date:10/2/2017)... Mich. , Oct. 2, 2017 Diplomat ... 8th Day Software and Consulting, LLC , and ... 8th Day Software, based in Tennessee ... LLC. 8th Day expands EnvoyHealth,s service offerings for health ... development. "In an ...
(Date:10/2/2017)... 2017 Halo Labs announces the European launch of their ... HORIZON at MIBio 2017 in Cambridge, U.K ... matter in biopharmaceutical samples with unprecedented speed and sensitivity while using ... Backgrounded Membrane Imaging. ... subvisible particle analysis system ...
Breaking Medicine Technology: