Chart usGOLD   Chart usSILVER  
 
Food for thought
The world is a dangerous place, not because of those who do evil, but because of those who look on and do nothing
Albert Einstein  
Search for :
LATEST NEWS  :
MINING STOCKS  :
Subscribe
Write Us
Add to Google
Search on Ebay :
PRECIOUS METALS (US $)
Gold 1230.900.34
Silver 17.17-0.02
Platinum 1243.50-2.00
Palladium 776.00-2.75
WORLD MARKETS
DOWJONES 16805128
NASDAQ 448431
NIKKEI 15292153
ASX 539929
CAC 40 4129-29
DAX 8988-60
HUI 184-1
XAU 760
CURRENCIES (€)
AUS $ 1.4416
CAN $ 1.4227
US $ 1.2669
GBP (£) 0.7875
Sw Fr 1.2059
YEN 137.0400
CURRENCIES ($)
AUS $ 1.1382
CAN $ 1.1230
Euro 0.7893
GBP (£) 0.6217
Sw Fr 0.9518
YEN 108.1000
RATIOS & INDEXES
Gold / Silver71.69
Gold / Oil15.17
Dowjones / Gold13.65
COMMODITIES
Copper 3.060.01
WTI Oil 81.14-0.61
Nat. Gas 3.60-0.02
Market Indices
Metal Prices
RSS
Precious Metals
Graph Generator
Statistics by Country
Statistics by Metals
Advertise on 24hGold
Projects on Google Earth
How nano silver turns people blue
Published : November 15th, 2012
276 words - Reading time : 0 - 1 minutes
( 0 vote, 0/5 ) Print article
 
    Comments    
Tweet
NANO Magazine, in its November 13, 2012 article, reports that How nano silver turns people blue.

Extract :
Keywords :   Silver |

 

 

 

 

Ingesting silver — in antimicrobial health tonics or for extensive medical treatments involving silver — can cause argyria, condition in which the skin turns grayish-blue. Brown researchers have discovered how that happens. The process is similar to developing black-and-white photographs, and it's not just the silver.

Ingesting silver — in antimicrobial health tonics or for extensive medical treatments involving silver — can cause argyria, a condition in which the skin turns grayish-blue.“It’s the first conceptual model giving the whole picture of how one develops this condition,” said Robert Hurt, professor of engineering at Brown and part of the research team. “What’s interesting here is that the particles someone ingests aren’t the particles that ultimately cause the disorder.”

Scientists have known for years argyria had something to do with silver. The condition has been documented in people who (ill advisedly) drink antimicrobial health tonics containing silver nanoparticles and in people who have had extensive medical treatments involving silver. Tissue samples from patients showed silver particles actually lodged deep in the skin, but it wasn’t clear how they got there.

As it turns out, argyria is caused by a complex series of chemical reactions, Hurt said. His paper on the subject, authored with Brown colleagues Jingyu Liu, Zhongying Wang, Frances Liu, and Agnes Kane, is published in the journal ACS Nano.

Hurt and his team show that nanosilver is broken down in the stomach, absorbed into the bloodstream as a salt and finally deposited in the skin, where exposure to light turns the salt back into elemental silver and creates the telltale bluish hue. That final stage, oddly, involves the same photochemical reaction used to develop black-and-white photographs.

 

 

Read the rest of the article at NANO Magazine
Tweet
Rate :Average note :0 (0 vote)View Top rated
Previous article by
24hGoldWire
All articles by
24hGoldWire
Next article by
24hGoldWire
Receive by mail the latest articles by this author  
Latest comment posted for this article
Be the first to comment
Add your comment
TOP ARTICLES
Editor's picks
RSS feed24hGold Mobile
Gold Data CenterGold & Silver Converter
Gold coins on eBaySilver coins on eBay
Technical AnalysisFundamental Analysis
Most recent articles by 24hGoldWire
11/21/2012
11/16/2012
10/31/2012
10/11/2012
6/13/2012
All Articles
Comment this article
You must be logged in to comment an article8000 characters max.
 
Sign in
User : Password : Login
Sign In Forgot password?
 
Receive 24hGold's Daily Market Briefing in your inbox. Go here to subscribe or unsubscribe.
Disclaimer