Navigation Links
Scientists find gold-plated fossil solution

An international team of scientists in the University of Leicester's Department of Geology has found a solution to a research problem involving fossils right next door - in the University's Chemistry Department.

Many objects, including fossils, can reveal a huge amount of scientific information when studied using the high power magnification of electron microscopes, but in order to study tiny fossils or microscopic details of larger fossils in this way, palaeontologists routinely coat the fossils with an ultra-thin layer of gold. This obviously changes the way the fossil looks, and so it is often necessary to remove the gold after analysis, but this is difficult and expensive and uses dangerous chemicals like cyanide.

University of Leicester chemists are developing industrial electro-plating and polishing techniques using liquid salts called 'ionic liquids' which are safe, cheap and environmentally friendly. Scientists from the two departments got together to see whether a similar process could be used on fossils. The work was supported by the Natural Environment Research Council (NERC).

They found that ionic liquids can remove gold quickly and easily without damaging even tiny, delicate fossils. The liquids are safe to handle, can be simply disposed of and can even dissolve the gold without affecting the glue that holds the fossil specimen in place for analysis.

Professor Mark Purnell, from the Department of Geology, said: "There are many cases where collecting the evidence required for research affects fossils or other objects in ways that might be considered as somewhat destructive gold coating for electron microscopy falls into this category. Understandably, this creates problems for places like museums which have to balance the value of research on their collections against the risk that specimens will be affected. This approach to gold removal offers a new way of tackling this problem that is safe for both researchers and the specimens."

Professor Andy Abbott, from the Department of Chemistry, added: "This is a very nice demonstration of the use of ionic liquids for metal recovery but it is just the tip of the iceberg as we are using this technology for the recycling of a wide range of alloys and waste materials. The University of Leicester is building a strong reputation for the development of sustainable materials."

Contact: Professor Mark Purnell
University of Leicester

Related biology news :

1. New study by WHOI scientists provides baseline measurements of carbon in Arctic Ocean
2. Novel discovery by NUS scientists paves the way for more effective treatment of cancers
3. Stanford scientists document fragile land-sea ecological chain
4. Using graphene, scientists develop a less toxic way to rust-proof steel
5. Scripps Florida scientists awarded $8.4 million grant to develop new anti-smoking treatments
6. Berkeley Lab scientists generate electricity from viruses
7. Scientists read the ash from the Icelandic volcano 2 years after its eruption
8. Scientists find differences in naked mole rats protein disposers
9. Scripps Florida scientists identify neurotranmitters that lead to forgetting
10. Scientists discover new inflammatory target
11. EMBO welcomes 55 leading life scientists as members
Post Your Comments:
Related Image:
Scientists find gold-plated fossil solution
(Date:10/29/2015)... , Oct. 29, 2015   MedNet Solutions ... the entire spectrum of clinical research, is pleased to ... High Tech Association (MHTA) as one of only three ... the "Software – Small and Growing" category. The Tekne Awards ... who have shown superior technology innovation and leadership. ...
(Date:10/29/2015)... 29, 2015  Rubicon Genomics, Inc., today announced ... of its DNA library preparation products, including the ... ThruPLEX Plasma-seq kit. ThruPLEX Plasma-seq has been optimized ... NGS libraries for liquid biopsies--the analysis of cell-free ... applications in cancer and other conditions. Eurofins Scientific ...
(Date:10/29/2015)... , Oct. 29, 2015 Today, ... a partnership with 2XU, a global leader in ... a smart hat with advanced bio-sensing technology. The ... athletes to monitor key biometrics to improve overall ... partnership, the two companies will bring together the most ...
Breaking Biology News(10 mins):
(Date:11/25/2015)... , November 26, 2015 ... Biobanking Market 2016 - 2020 report analyzes that ... integrity and quality in long-term samples, minimizing manual ... cost-effectiveness. Automation minimizes manual errors such as mislabeling ... efficiency. Further, it plays a vital role in ...
(Date:11/25/2015)... -- Neurocrine Biosciences, Inc. (Nasdaq: NBIX ) announced today ... Neurocrine Biosciences, will be presenting at the 27th Annual ... . .   Listeners ... prior to the presentation to download or install any ... available on the website approximately one hour after the ...
(Date:11/25/2015)... ... November 25, 2015 , ... Jessica Richman and ... early in their initial angel funding process. Now, they are paying it forward ... make early stage investments in the microbiome space. In this, they join ...
(Date:11/24/2015)... 24, 2015 /CNW/ - iCo Therapeutics ("iCo" or "the ... results for the quarter ended September 30, 2015. ... dollars and presented under International Financial Reporting Standards ... ," said Andrew Rae , President & ... are not only value enriching for this clinical ...
Breaking Biology Technology: