An antimicrobial strengthened glass and a preparation process thereof. The antimicrobial strengthened glass made from components including 30-50 parts of silicon dioxide, 10-20 parts of epoxy resin, 10-20 parts of titanium dioxide, 5-15 parts of nano bismuth oxide, 8-12 parts of boron oxide, 4-8 parts of chlorinated polyethylene, 2-6 parts of aluminum oxide, 1-3 parts of sodium oxide, 1-3 parts of manganese dioxide, 5-15 parts of graphite powder, 1-3 parts of barium sulfate, 2-4 parts of calcium hexaluminate, 1-3 parts of sodium fluorosilicate, 2-4 parts of borax decahydrate, 3-5 parts of sodium oxalate, 1-2 parts of sodium phosphate, 1-3 parts of sodium carbonate, 1-3 parts of potassium persulfate, 1-2 parts of potassium carbonate, 1-5 parts of ethylenediamine tetraacetic acid disodium, 1-5 parts of acrylamide, 0.01-1 part of silver nitrate and 0.01-1 parts of zinc sulfate.

A material that is less populated by biofilms than known materials and is well tolerated by the body is provided. The material is an element introducible into or attachable on a human or animal body and includes a glass and/or glass ceramic and/or ceramic material at least in some areas thereof, which inhibits the formation of biofilms and/or on which human or animal cells grow if the element is introduced into the human or animal body or attached thereto, wherein the glass and/or glass ceramic material comprises at least: SiO.sub.2 in a range from 60 to 75 wt % and ZnO in a range from 1 to 7 wt %.

Described is a method of processing an antimicrobial glass substrate. More particularly, described is a method of removing one or more of silver nitrate or silver oxide on the surface of an antimicrobial glass substrate. Also described is a method of manufacturing a glass substrate that is substantially free of yellow discoloration.

There is disclosed an antibacterial glass composition, a preparing method of an antibacterial glass coating film using the same and an electric home appliance including the same. The antibacterial glass composition according to the present disclosure and the antibacterial glass coating film using the same are applied to an electric home appliance, thereby exhibiting excellent antibacterial properties and heavy metal elution safety, and exhibiting excellent transmittance (70% or more) when applied to a transparent glass substrate.

A method of treating a glazed ceramic article comprises applying an antimicrobial composition on top of an outermost surface of a glazed ceramic article. The antimicrobial composition comprises an antimicrobial additive. The antimicrobial composition further comprises a carrier medium. The antimicrobial additive is selected from the group consisting of Bi.sub.2O.sub.3, ZnO, Ag.sub.2CO.sub.3, Ag.sub.2O, Zn, Bi, Ag, and a combination thereof.

Embodiments of the present invention pertain to antimicrobial glass compositions, glasses and articles. The articles include a glass, which may include a glass phase and a cuprite phase. In other embodiments, the glasses include as plurality of Cu.sup.1+ ions, a degradable phase including B.sub.2O.sub.3, P.sub.2O.sub.5 and K.sub.2O and a durable phase including SiO.sub.2. Other embodiments include glasses having a plurality of Cu.sup.1+ ions disposed on the surface of the glass and in the glass network and/or the glass matrix. The article may also include a polymer. The glasses and articles disclosed herein exhibit a 2 log reduction or greater in a concentration of at least one of Staphylococcus aureus, Enterobacter aerogenes, Pseudomonas aeruginosa bacteria, Methicillin Resistant Staphylococcus aureus, and E. coli, under the EPA Test Method for Efficacy of Copper Alloy as a Sanitizer testing conditions and under Modified JIS Z 2801 for Bacteria testing conditions. In some embodiments, the glass and articles exhibit a 2 log reduction or greater in a concentration of Murine Norovirus under Modified JIS Z 2801 Test for Viruses testing conditions.

A method of treating a substrate in a pressure vessel that includes the steps: preparing an ion-exchange bath with a bath composition that comprises a polar solvent and a plurality of ion-exchanging ions in a vessel; submersing a substrate having an outer region containing a plurality of exchangeable ions in the bath; pressurizing the bath in the vessel to a predetermined pressure substantially above ambient pressure; heating the bath in the vessel to a predetermined temperature; and treating the substrate for a predetermined ion-exchange duration at the predetermined pressure and temperature such that a portion of the plurality of exchangeable ions is exchanged with a portion of the ion-exchanging ions. The substrate can consist essentially of a glass, glass-ceramic or ceramic substrate composition, and the predetermined ion-exchange duration, temperature and pressure can each be selected based at least in part on the substrate composition and the bath composition.

The process for transforming an industrial soda-lime-type base glass plate into a glazed material with antimicrobial properties and personalized color consists in an antimicrobial glazed material production process. Copper nanoparticles (NPCu) are added to said glass with the aim of directly altering cell protection against viruses and bacteria in order to destroy their genetic material. The antibacterial glass is specifically applied to the industrial sector of surfaces and covers that are usually used in hospital facilities, and covers for the handling of food and beverages, among other uses.

An antimicrobial article having a substrate, and a coating on a surface of the substrate. The coating includes a silver-containing alkali silicate. The antimicrobial article has an antimicrobial efficacy of greater than or equal to about 90.0% according to EPA Test Method for Efficacy of Copper Alloy Surfaces as a Sanitizer. The coating may further include at least one of a boron-containing compound and an aluminum-containing compound. A method for forming antimicrobial articles includes coating a substrate with a mixture comprising an alkali silicate; curing the coating at a temperature from greater than or equal to about 300 C. to less than or equal to about 620 C. for a duration of greater than or equal to about 15 minutes to less than or equal to about 120 minutes; and contacting the coating with an antimicrobial medium comprising silver nitrate and an alkali nitrate.

A material that is less populated by biofilms than known materials and is well tolerated by the body is provided. The material is an element introducible into or attachable on a human or animal body and includes a glass and/or glass ceramic and/or ceramic material at least in some areas thereof, which inhibits the formation of biofilms and/or on which human or animal cells grow if the element is introduced into the human or animal body or attached thereto, wherein the glass and/or glass ceramic material comprises at least: SiO.sub.2 in a range from 60 to 75 wt % and ZnO in a range from 1 to 7 wt %.