Amazing results were found in a joint research project that was run by scientists at M.V.Lomonosov Moscow State University and V.I.Vernadsky Institute of Geochemistry and Analytical Chemistry, Moscow, Russian Federation.
According to the results reported in the paper, it was discovered that the aquatic plant (macrophyte) Ceratophyllum demersum immobilized gold (Au) nanoparticles after their addition to water. This is the first time it was shown that the nanoparticles of gold (Au) in substantial amount bind to the living biomass of the aquatic macrophyte, Ceratophyllum demersum.
The concentrations of Au were measured in the samples of the phytomass using neutron activation analysis (NAA). As a result of the binding and/or immobilization of the nanoparticles, the amount of Au in the samples of the phytomass increased manifold (by a factor of 430) above the background level of gold in the plant tissues. The increase was by two orders of magnitude.
The new results may become a know-how to develop a new technology to extract gold or other rare chemical elements from water.
The new data added a new aspect to the modern vision of the multifunctional role of the biota in the migration of elements in aquatic ecosystems.
Also, the result added new information to the studies of interactions of Au with organisms that may contribute to new biotechnologies.
The technologies using plants – phytotechnologies – open many new opportunities.
Publication with these results:
Ostroumov S. A., Kolesov G. M. The aquatic macrophyte Ceratophyllum demersum immobilizes Au nanoparticles after their addition to water. – Doklady Biological Sciences, 2010 (Mar – Apr), Vol. 431, p. 124–127.
[© Pleiades Publishing, Ltd., ISSN 0012-4966]. Original Russian Text © S.A. Ostroumov, G.M. Kolesov, 2010, published in Doklady Akademii Nauk, 2010, Vol. 431, No. 4, pp. 566–569. Bibliogr. 15 refs. Presented by Academician M.A. Fedonkin July 31, 2009. Received February 11, 2009.
Online free: http://www.scribd.com/ar55/d/41165833
http://www.ncbi.nlm.nih.gov/pubmed/20506851; PMID: 20506851 [PubMed];
Key words: nanotechnology, nanoparticles, Au, gold, biogeochemistry, biotechnology, aquatic plants, macrophyte, Ceratophyllum demersum, Immobilization, water quality, monitoring, environmental science, ecology, nanoparticles in aquatic environment
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More about related scientific research:
All about scientific results and activities of Dr. Sergei A. Ostroumov: Motto: Discovery non-stop, from revolution in fundamentals of ecology toward new high ecotechnologies.
Key sites IN SEVEN SECTIONS:
1 AWARDS, HONORS; 2. DISCOVERIES; 3. PUBLICATIONS; 4. CITATION;
5. COMMENTS, EVALUATIONS, REVIEWS; 6. AVAILABILITY IN LIBRARIES WORLDWIDE; 7. CONTRIBUTION TO EDUCATION;
**The key sites organized according to the six sections
1AWARDS, HONORS:Awards, Certification of quality of scientific results of Dr. S.A. Ostroumov: diplomas, certificates, medals: http://www.scribd.com/doc/79842122/;
**EXAMPLES OF The key discoveries and innovations that were made by Dr. Sergei A. Ostroumov, and the scientific questions that were answered in his publications: http://www.scribd.com/doc/61828106/;
** 18 key discoveries, innovations: http://www.scribd.com/doc/83168032;
**Annotated English bibliography: In the form of a list; Environmental Science,Ecology. Dr. S.Ostroumov; with comments: http://www.scribd.com/doc/79546542;
** Key annotated bibliography on the most important issues of ecology, environment (the innovations authored by Dr. S. Ostroumov) with short comments on what is new, in the form of a simple table, which is easy to read and understand and use: http://www.scribd.com/doc/74026302;
**Annotated bibliography in several languages, including: Arabic, Armenian, Chinese, Danish, Dutch, Nederlandse, English, Estonian, Finnish, French, Georgian, German, Italian, Japanese, Korean, Latvian, Lithuanian, Persian, Polish, Portuguese, Romanian, Moldovan, Russian, Spanish, Swedish, Turkish, Ukrainian: http://www.scribd.com/doc/78605260/;
**Most cited publications: www.scribd.com/doc/58228788
**Most viewed materials: www.scribd.com/doc/61435402
**Key papers: www.scribd.com/doc/63407123
**This book was acquired by the key world libraries:
cover picture, abstract, list of the reviews of the books (favorable): http://www.scribd.com/doc/64066178/
Bibliography of Dr. S.A.Ostroumov. At the service: Refdoc.fr 136 results http://www.scribd.com/doc/81500264/;
Bibliography of Dr. S.A.Ostroumov According to Internet service http://worldwidescience.org http://www.scribd.com/doc/81482445/;
Bibliography. Publications of Dr. S.A. Ostroumov. Preview of first 2 pages. The list of publications according to the Internet service rd.springer.com; Preview of the first pages (page 1 and page 2) of each publication is available free at: http://rd.springer.com http://www.scribd.com/doc/81480498/;
Dr.S.A.Ostroumov This is a list of some of the publications authored, co-authored by Dr. S.A. Ostroumov according to the internet service AuthorMapper,
Bibliography. HathiTrust Digital Library. Books authored, coauthored by Dr. S.A.Ostroumov HathiTrust Digital Library is a digital preservation repository and highly functional access platform. It provides long-term preservation and access services http://www.scribd.com/doc/81458011/Australia-papers-of-Russian-Scientist-Moscow-State-University-Cited-in-Australia-Examples-Bioassay-of-Phytotoxicity-of-Surfactants-Detergents-With-the;
Papers of Russian scientists (Moscow State University) cited in Australia (examples). http://www.scribd.com/doc/81430208/;
Gabriel, Gateway to Europe’s National Libraries. Books and some other publications by Dr. S. Ostroumov. Belgium, Czech Republic, Germany, France, Iceland, Italy, Serbia, Russia, Slovakia, Turkey, UK Pictures of the covers of the Books authored and co-authored by Dr. S. Ostroumov: http://www.scribd.com/doc/63499091/;
Publications indexed: Web of Science: http://www.scribd.com/doc/82458780/;
4. CITATION:** Scholars of these over 300 institutions (worldwide) have cited the publications (biology, ecology, environment) authored by Dr. Sergei A. Ostroumov: http://www.scribd.com/doc/60225505;**Ecology, Environmental Sciences, Biology, updated; Citation of Dr. S.A. Ostroumov’s works in the U.S.A. http://www.scribd.com/doc/79577206
**World-wide citing Dr. S.O.: scribd.com/doc/54504932;
**In Russian: http://www.scribd.com/doc/80564027/;
** Citation. The book ‘Biological Effects of Surfactants’ was cited by scientists of Netherlands, Belgium, Spain, Austria, Slovakia, Germany, Argentina, Saudi Arabia, Denmark, United Kingdom, Poland and other countries: www.scribd.com/doc/82403759/
5. COMMENTS, EVALUATIONS, REVIEWS:
**Evidence of merit: scribd.com/doc/59927430;
**Reviews, evaluations of the publications of Dr. S.A. Ostroumov. Diplomas, certificates. Language: English:http://www.scribd.com/doc/79818820/;
**Reviews, evaluations; language: mainly Russian: http://www.scribd.com/doc/70758746/;
6. AVAILABILITY IN LIBRARIES WORLDWIDE:
**Books, other works in University of California, other U.S. and key world schools: http://www.scribd.com/doc/79934197/;
**The U.S.A., Harvard University, and some other institutions: http://www.scribd.com/doc/76963064/;
**The U.S.A., Library of Massachusetts Institute of Technology (MIT): http://www.scribd.com/doc/78915437/;
**COUNTRIES WORLDWIDE: Availability of the books authored by Dr. S.A.O.: The libraries of a number of countries worldwide acquired the books, have the publications (ecology, environment, biology) by Dr. S. Ostroumov: Ecology, Biology, Environmental Sciences in the libraries of Europe, North America, Asia, Australia, Africa: Denmark, USA, Canada, France, Switzerland, Japan, China, Korea, Belgium, Czech Republic, Germany, Iceland, Italy, Slovakia, United Kingdom, Finland, Poland, Serbia, Turkey, Australia, New Zealand, Netherlands, Singapore, South Africa, Russia, Ukraine, Belarus, and others: http://www.scribd.com/doc/77617474/;
**Papers available in U.S. libraries. Ecology, Environmental Sciences, Aquatic Sciences, Biology. Authored, co-authored by Dr. S.A.Ostroumov: http://www.scribd.com/doc/80220904/;
** Publications (books, papers) available in U.S. Library: National Agricultural Library (NAL) of USDA. In Catalog: Agricolahttp://www.scribd.com/doc/81677620/;
7. CONTRIBUTION TO EDUCATION:
**Some of Dr. S. Ostroumov’s scientific results were used in lectures delivered to
university students in the U.S.A., Germany, Netherlands, and other countries. More detail on how Dr. S. Ostroumov’s publications are being used to modernize education:
About this author, in Russian: http://famous-scientists.ru/3732/
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