[EN] ANTIMICROBIAL COMPOSITIONS AND METHODS OF MAKING THE SAME<br/>[FR] COMPOSITIONS ANTIMICROBIENNES ET LEURS PROCÉDÉS DE FABRICATION
申请人:KARANDIKAR BHALCHANDRA M
公开号:WO2014179353A1
公开(公告)日:2014-11-06
The present disclosure comprises antimicrobial compositions and devices comprising silver compounds that resist heat and light discoloration. In one aspect, the said compounds comprise silver and at least one s-triazine ring or moiety. In another aspect, the antimicrobial compositions are hydrogels that are effective against broad spectrum of common pathogens including MRSA and VRE and are suitable for treating human or animal wounds and burns. The methods of the present disclosure comprise treating medical and non-medical devices and articles with compositions comprising the silver compounds to impart antimicrobial property.
Novel developing agents for (photo) thermographic systems
申请人:MINNESOTA MINING AND MANUFACTURING COMPANY
公开号:EP0681210A1
公开(公告)日:1995-11-08
A thermographic element comprising in a non-aqueous binder medium a silver salt oxidising agent in reactive association with a compound comprising a plurality of redox colour releasing moieties such that oxidation of each redox colour releasing moiety causes release from said compound of a thermally diffusible dye.
The compounds many of which are new incorporate two or more developer moieties into a single molecule to minimise the diffusibility of the compound. Following oxidation, either directly by the silver salt or by means of a cross-oxidising agent, each oxidised developer moiety releases a thermally diffusible dye. The compounds are of sufficient size and molecular weight to slow or prevent diffusion in imaging systems and yet possess several active developer moieties per molecule which is advantageous over known ballasted dye releasers which comprise bulky molecules with only a single developer moiety.
Monoaminophenazine leuco dyes and photothermographic materials containing same
申请人:MINNESOTA MINING AND MANUFACTURING COMPANY
公开号:EP0671393A1
公开(公告)日:1995-09-13
Photothermographic elements incorporating leuco forms of phenazinium dyes to provide a developed colour image. The dye has a nucleaus of the general formula:
in which;
X represents
Y is H or any substituent other than amino or amido,
R¹, R², R⁴ and R¹⁰ are independently selected from H, alkyl, aryl, alkylsulfonyl, arysulfonyl, alkylcarbonyl, arylcarbonyl, or
R¹ and R² together represent the necessary atoms to complete a cyclic structure or one or more of R¹, R² and R⁴ represent the necessary atoms to complete a cyclic structure fused to the nucleus having skeletal atoms selected from C, N, 0 and S, and
R¹¹ represents any group which will not prevent oxidative cleavage of the X-N bond,
with the proviso that when R¹ is C₂H₅
R² is not C₂H₄NHSO₂CH₃.
Nanoscale Stabilization of Nonequilibrium Rock Salt BiAgSeS: Colloidal Synthesis and Temperature Driven Unusual Phase Transition
作者:Satya N. Guin、Swastika Banerjee、Dirtha Sanyal、Swapan K. Pati、Kanishka Biswas
DOI:10.1021/acs.chemmater.7b00862
日期:2017.4.25
demonstrate the entrapping of nonequilibrium rock salt phase of BiAgSeS in the nanocrystalline form at room temperature via kinetic colloidal synthesis. High symmetry rock salt nanocrystals undergo an unusual irreversible phase transition to a lower symmetry thermodynamic trigonal structure upon thermal treatment. To get fundamental insights into such unusual finding, we have performed temperature dependent
Facile solvothermal synthesis of Ag/Fe<sub>3</sub>O<sub>4</sub> nanocomposites and their SERS applications in on-line monitoring of pesticide contaminated water
The dual-functional substrates of Ag/Fe3O4 exhibit excellent SERS performance, and have been successfully applied in real-time on-line monitoring of wastewater.