Navigation Links
Nanotechnology helps scientists keep silver shiny
Date:10/26/2012

There are thousands of silver artifacts in museum collections around the world, and keeping them shiny is a constant challenge. So scientists are using new technology to give conservators a helping hand. A team of researchers led by Ray Phaneuf, a professor of materials science and engineering at the University of Maryland, College Park, has partnered with The Walters Art Museum in Baltimore to investigate less labor-intensive ways to protect silver artifacts from tarnishing. The new techniques, which might keep silver surfaces shiny for longer than traditional methods, could help ensure that historically important artifacts are preserved for future generations to learn from and enjoy. The researchers will present their work at the AVS 59th International Symposium and Exhibition, held Oct. 28 Nov. 2, in Tampa, Fla.

Silver tarnishes when hydrogen sulfide in the air reacts with the silver, forming an unsightly black layer of silver sulfide on the surface of the artifact. If the tarnish appears on Grandma's silver flatware set, a little polisher and some elbow grease will easily remove it. But polishing, which works by dissolving or grinding away the silver-sulfide layer, can also remove some of the underlying silver, an undesirable outcome for priceless works of art.

Currently museum conservators can apply a thin layer of nitrocellulose lacquer to protect the silver. The coating is often hand-painted by a trained specialist and must be removed and reapplied an average of every thirty years. Phaneuf notes that it is difficult to apply a layer of even thickness over an entire piece, and the process of applying, removing, and reapplying the film is time-consuming.

"We did a quick back-of-the envelope calculation and found that for a big museum like the Metropolitan Museum of Art in New York, treating their entire silver collection with nitrocellulose films would likely be a never-ending task," says Phaneuf.

A quicker conservatio
'/>"/>

Contact: Catherine Meyers
cmeyers@aip.org
301-209-3088
American Institute of Physics
Source:Eurekalert

0

GOOD

Page: 1 2 3

Related biology technology :

1. UCLA physicists report nanotechnology feat with proteins
2. ResearchMoz: Nanotech Enabled Drug Delivery Therapeutics Market Will be $136 Billion by the Year 2021: Nanotechnology in Drug Delivery: Global Markets
3. Registration now open: 2012 Regional, State, and Local Initiatives in Nanotechnology
4. Air Force Office of Scientific Research hosts nanotechnology pioneer
5. UCF scientists use nanotechnology to hunt for hidden pathogens
6. Notre Dame paper examines nanotechnology-related safety and ethics problem
7. McLean Report on nanotechnology that may enhance medication delivery and improve MRI performance
8. Nanotechnology for Drug Delivery: Global Market for Nanocrystals
9. Syracuse University researchers use nanotechnology to harness power of fireflies
10. Shape-shifting materials are goal of new nanotechnology project
11. Breakthrough in nanotechnology
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/23/2013)... Can economic incentives such as gift cards, ... the public to increase their donations of blood? , ... Business School Assistant Professor Mario Macis says the ... body of recent research that supports their argument, the ... of Science that the World Health Organization and national ...
(Date:5/23/2013)... 23, 2013  Rahal Letterman Lanigan Racing (RLL) and ... stem cell banking and therapeutics, announced today that StemCyte ... Acorn Stairlifts Indy car driven by James ... the IZOD IndyCar 2013 season.   StemCyte, ... support awareness of umbilical cord blood banking and its ...
(Date:5/23/2013)...  Saddleback Memorial Medical Center in Laguna ... on the West Coast to perform a hysterectomy using ... women with a state-of-the-art, minimally invasive approach to gynecological ... , M.D., a highly regarded Orange County ... minimally invasive surgery at Saddleback Memorial, led the surgical ...
(Date:5/23/2013)... May 23, 2013 Z Trim Holdings, Inc. ... to a variety of industries, announced that Chef ... discussion at this year,s National Restaurant Association ("NRA") NRA ... behalf of the Research Chefs Association.  Chef Ryan spoke ... Good, the Bad and the Ugly," joining four other ...
Breaking Biology Technology:Offering Economic Incentives to Attract Blood Donations Should Be Encouraged, Research Team writes in Science 2Offering Economic Incentives to Attract Blood Donations Should Be Encouraged, Research Team writes in Science 3StemCyte, Inc. Joins Rahal Letterman Lanigan Racing As Associate Sponsor Of No. 16 IndyCar Program For James Jakes Beginning With The 97th Indianapolis 500 2StemCyte, Inc. Joins Rahal Letterman Lanigan Racing As Associate Sponsor Of No. 16 IndyCar Program For James Jakes Beginning With The 97th Indianapolis 500 3Saddleback Memorial Surgeon First on the West Coast to Perform Single-Site Robotic Hysterectomy 2Saddleback Memorial Surgeon First on the West Coast to Perform Single-Site Robotic Hysterectomy 3Z Trim's Chef Erin Ryan sits on Expert Panel at NRA Show 2Z Trim's Chef Erin Ryan sits on Expert Panel at NRA Show 3
... Pipeline Efforts at 27th Annual J.P. Morgan Healthcare Conference ... (Nasdaq: GHDX ) announced today that it ... 18-gene Oncotype DX(R) colon cancer assay. Utilizing more ... the validation study will use prospectively defined endpoints to ...
... Jan. 12 WaferGen Biosystems,Inc. (OTC Bulletin ... gene,expression, genotyping, cell biology and stem cell ... successfully demonstrated the,performance of the company,s SmartChip(TM) ... the platform,s ongoing alpha testing program. ...
... - Trial conducted by Novartis to evaluate safety and ... with ribavirin in patients with genotypes 2 and 3 ... Sciences, Inc. (Nasdaq: HGSI ) today announced ... trial that will evaluate the safety and efficacy of ...
Cached Biology Technology:Genomic Health Announces Commencement of QUASAR Clinical Validation Study for Oncotype DX(R) Colon Cancer Assay 2Genomic Health Announces Commencement of QUASAR Clinical Validation Study for Oncotype DX(R) Colon Cancer Assay 3Genomic Health Announces Commencement of QUASAR Clinical Validation Study for Oncotype DX(R) Colon Cancer Assay 4Genomic Health Announces Commencement of QUASAR Clinical Validation Study for Oncotype DX(R) Colon Cancer Assay 5WaferGen's SmartChip(TM) System Performance Successfully Demonstrated in Initial Phase of Alpha Testing Program 2WaferGen's SmartChip(TM) System Performance Successfully Demonstrated in Initial Phase of Alpha Testing Program 3WaferGen's SmartChip(TM) System Performance Successfully Demonstrated in Initial Phase of Alpha Testing Program 4WaferGen's SmartChip(TM) System Performance Successfully Demonstrated in Initial Phase of Alpha Testing Program 5Human Genome Sciences Announces Initiation of Phase 2b Trial of Albuferon(R) Dosed Monthly in Chronic Hepatitis C 2Human Genome Sciences Announces Initiation of Phase 2b Trial of Albuferon(R) Dosed Monthly in Chronic Hepatitis C 3Human Genome Sciences Announces Initiation of Phase 2b Trial of Albuferon(R) Dosed Monthly in Chronic Hepatitis C 4Human Genome Sciences Announces Initiation of Phase 2b Trial of Albuferon(R) Dosed Monthly in Chronic Hepatitis C 5
(Date:5/24/2013)... and grow by avoiding detection and destruction by the ... to eliminate cancer cells; however, there are many factors ... Regulatory T cells are immune cells that function to ... the Journal of Clinical Investigation , researchers led ... T cells that infiltrate tumors express proteins that can ...
(Date:5/23/2013)... Frontiers in Plant Science , ... gene content and promoter evolution among grasses , ... of stretches of DNA that undergo little change in ... not code for any proteins. Some of these evolutionarily ... to regulate the expression of other genes or the ...
(Date:5/23/2013)... which estrogen suppresses lipid synthesis in the liver, UC ... treating certain liver diseases. , With this finding, ... long-held views in the field. Study results appear in ... Signaling . , "The dogma in the steroid receptor ... located in the nucleus respond to steroid hormones by ...
Breaking Biology News(10 mins):Frontiers news briefs: May 23 2Frontiers news briefs: May 23 3UCI study reveals new mechanism for estrogen suppression of liver lipid synthesis 2
... WASHINGTON To reduce the risk of another ... oil spill, a new report from the National Academy ... in offshore drilling should take a "system safety" approach ... of operation -- from ensuring the integrity of wells ...
... reporting development of a first-of-its-kind technology that could help ... involving nerve gas and other chemical agents back to ... ingredients for the agent. A report on the technique, ... attacks, appears in ACS, journal Analytical Chemistry . ...
... Athens, Ga. When you cut an apple and ... lemon juice, an antioxidant, and the process slows down. ... the brain as Alzheimer,s disease sets in. The underlying cause ... with the creation of free radicals that cause oxidative stress. ...
Cached Biology News:Industry, regulators should take 'system safety' approach to offshore drilling in aftermath of Deepwater Horizon accident, says new report 2Industry, regulators should take 'system safety' approach to offshore drilling in aftermath of Deepwater Horizon accident, says new report 3Antioxidant has potential in the Alzheimer's fight, UGA researchers find 2
Human GCP-2 is a member of the CXC family of chemokines. It also promotes neutrophil chemotaxis and deganulation. GF063 is an 8.0 kDa protein containing 73 amino acid residues....
... Anti-Matrix Metalloproteinase-2, Hinge Region By immunoblotting the ... protein. It reacts with free MMP-2 or ... buffered aqueous glycerol solution Solution ... 7.4, containing 50% glycerol and 15 mM ...
human Exodus-2 Research Focus: cytokine/growth factor Storage Temperature: -20C Shipping Temperature: 4C...
... exerts its effects by ... receptor, a disulfide-linked heterotetrameric ... Alpha subunits and two ... the following configuration: Beta-Alpha-Alpha-Beta. ...
Biology Products: