The present invention relates to examination of characteristics of silver nano-clusters self-arranged by means of reduction of silver salt to silver nanoparticles by means of 2-mercapto-thioxanthone on DNA and BSA in short photo-illumination duration of 1 second.

This silver paste includes a silver powder and a solvent, in which the silver powder includes first silver particles having a particle size of 100 nm or more and less than 500 nm, second silver particles having a particle size of 50 nm or more and less than 100 nm, and third silver particles having a particle size of 1000 nm or more and less than 10000 nm, and the content of the first silver particles is 12% by volume or more and 90% by volume or less, the content of the second silver particles is 1% by volume or more and 38% by volume or less, and the content of the third silver particles is 5% by volume or more and 80% by volume or less, regarding a total amount of the silver powder as 100% by volume.

The present invention is directed to a method to produce silver nanoparticles. The method includes the steps of dropwise addition of silver nitrate solution to a carboxymethyl cellulose solution (1%) while stirring. The solution is subjected to ultrasonic irradiation for 30 minutes. The first indication of silver nanoparticles being synthesized can be change in the color of the solution to yellowish-brown after Ultrasonication. The solution can thereafter be subjected to microwave irradiations. After the predetermined duration, the produced silver nanoparticles can be separated from the solution. The nanoparticles can be washed and freeze dried.

The present invention is directed to a method to produce silver nanoparticles. The method includes the steps of dropwise addition of silver nitrate solution to a carboxymethyl cellulose solution (1%) while stirring. The solution is subjected to ultrasonic irradiation for 30 minutes. The first indication of silver nanoparticles being synthesized can be change in the color of the solution to yellowish-brown after Ultrasonication. The solution can thereafter be subjected to microwave irradiations. After the predetermined duration, the produced silver nanoparticles can be separated from the solution. The nanoparticles can be washed and freeze dried.

The present invention is directed to a method to produce silver nanoparticles. The method includes the steps of dropwise addition of silver nitrate solution to a carboxymethyl cellulose solution (1%) while stirring. The solution is subjected to ultrasonic irradiation for 30 minutes. The first indication of silver nanoparticles being synthesized can be change in the color of the solution to yellowish-brown after Ultrasonication. The solution can thereafter be subjected to microwave irradiations. After the predetermined duration, the produced silver nanoparticles can be separated from the solution. The nanoparticles can be washed and freeze dried.

An object of the present invention is to provide platinum-tungsten solid solution particles that can be suitably used for catalyst applications and others. Another object is to provide a catalyst with higher catalytic activity than when platinum is used alone. Disclosed are platinum-tungsten solid solution particles comprising platinum and tungsten in solid solution at an atomic level. Also disclosed is a catalyst comprising the platinum-tungsten solid solution particles.

A method of producing nanoscale materials comprising the steps of entraining liquid droplets containing at least one nanoparticle precursor within a gaseous stream, and passing said gaseous stream containing said liquid droplets through a non-thermal equilibrium plasma whereby said plasma interacts with said at least one nanoparticle precursor to produce nanoparticles within said droplets without substantial evaporation of the droplets and conveying the thus produced nanoparticles within said gaseous stream downstream of said plasma.

A method of producing nanoscale materials comprising the steps of entraining liquid droplets containing at least one nanoparticle precursor within a gaseous stream, and passing said gaseous stream containing said liquid droplets through a non-thermal equilibrium plasma whereby said plasma interacts with said at least one nanoparticle precursor to produce nanoparticles within said droplets without substantial evaporation of the droplets and conveying the thus produced nanoparticles within said gaseous stream downstream of said plasma.

A method of producing nanoscale materials comprising the steps of entraining liquid droplets containing at least one nanoparticle precursor within a gaseous stream, and passing said gaseous stream containing said liquid droplets through a non-thermal equilibrium plasma whereby said plasma interacts with said at least one nanoparticle precursor to produce nanoparticles within said droplets without substantial evaporation of the droplets and conveying the thus produced nanoparticles within said gaseous stream downstream of said plasma.

The present disclosure relates to a stable copper-based core-shell nanoparticle and its process of manufacture. Further, the present disclosure relates to the use of the copper-based core-shell nanoparticles as plasmonic photocatalysts in photocalysis and hydrogen production.