Silver Nitrate Usage

PolyMedix Presents Data Showing Antimicrobial Activity of Sutures Containing ...

“There is a growing need for effective and safe alternatives to impart antimicrobial properties to medical devices,” commented, Nicholas Landekic, President and Chief Executive Officer of PolyMedix. “The currently available antimicrobial suture contains triclosan, an agent which has limited coverage and to which widespread resistance has been demonstrated. Our PolyCide biomaterials have a broad spectrum of activity and a unique mechanism of action designed to make bacterial resistance much less likely to develop. We believe that our PolyCide biomaterials could play an important role in reducing the incidence of surgical site infections, a potentially serious and expensive medical problem.”

The results, presented by Dr. Richard Scott, Vice President of Research at PolyMedix, demonstrated that the PolyCide compounds have broad spectrum activity against both Gram-positive and Gram-negative pathogens associated with surgical site infections, and have superior bacterial killing activity over triclosan and silver nitrate, another commonly used biocidal agent. Furthermore, no evidence for the development of resistance was observed with the PolyCide materials in laboratory serial passage assays, whereas resistance to triclosan was readily demonstrated.

“These data support our continued efforts to expand the use of our PolyCide compounds to other wound care applications and medical devices to improve infection control,” commented Dr. Scott. “We are excited about these results and the opportunities to develop the PolyCide materials for antimicrobial sutures.”

The PolyCide materials, like PolyMedix’s antibiotic PMX-30063 which is currently in a Phase 2 clinical trial for the treatment of Staphylococcus infections, are synthetic mimetics of the host-defense proteins, and employ the same mechanism of action that directly and selectively targets and disrupts the bacterial cell membrane. Host defense proteins represent one of the oldest and most effective antimicrobial defense systems found in humans and virtually all living creatures.

Make Silver Nitrate From Silver and Nitric Acid | Tips for Digital ...

Hey nurdrage i think this can important for you and other..

:The relativ atom masses are to handel (addit) with (g/mol=x*10^-36) for the exactly molecularmass, divide it by the number of atoms and verb they paralell to the exactly ratio you want. You can to addit the sames atoms before do the paralell verbs.

It is a kind of magic sure.

Amazon.de sell an periodensystem with relative atommasses and more (study knowledge).

I like the texas instrument calculators (not the cheapest).

@Al3xX420 Then filter and wash, and it should be possible to re-dissolve the (now pure) silver in nitric acid and get pure silver nitrate. I haven’t tried this yet, one worry is that some copper metal may also fall off the wire so the stuff at the bottom will once again be a mixture of silver plus copper. It occurs to me that the copper would dissolve in cold nitric acid while the silver will not (much), so that might be a way of removing any copper impurities. Haven’t tried this yet.

@Al3xX420 So now we have a solution of mixed silver nitrate and copper nitrate, and we need to separate them. One way would be to place copper metal (eg electrical wire) in the solution. The copper metal exchanges places with the silver in the silver nitrate, leaving more copper nitrate in solution and silver metal crystals on the wire. They fall off if you shake it, so you get silver in the bottom. Continue until no more silver forms, and you should have all the silver at the bottom. (more)

@Al3xX420 Stirling silver is about 7% copper. The copper dissolves quite well in nitric acid. Its presence is shown by the blue color of the solution. Our source sold us a silver coin and told me it was pure silver, but my daughter noticed was stamped “stirling” on the side. So we took it back and he gave us some silver that he said was for jewelers instead. We just finished dissolving it in HNO3 and there is a light blue color, so this has copper in it, too. (Post continued.)

@NurdRage Is Nitric acid the one i need to know between real silver, fake silver and sterling silver, and the same with gold? And, how can i know when i am holding real silver? What color does it become when it is touch by nitric acid? Does fake silver become green and the same to sterling silver, and real silver become yellow or what? And what about gold? Is the same reaction?

Boston medical and surgical journal

JAMA., The Journal of the American Medical Association

Silver in Healthcare, Its Antimicrobial Efficacy and Safety in Use

The use of silver nitrate in public health dentistry, a thesis submitted in partial fulfillment ... for the degree of Master of Public Health ...

The lancet