Zn-Cr layered double hydroxides (LDHs) intercalated with inorganic anions (CO3, Cl, SO4 and NO3) were synthesized by the co-precipitation method and the anion exchange process. The photocatalytic activity of the LDHs was studied by O2 evolution from aqueous solution of AgNO3 as a sacrificial agent. All the prepared LDHs showed photocatalytic activity under either UV and/or visible light irradia...

We demonstrate new method for the synthesis of gold and silver nanoparticles from pineapple extract. Furthermore, we have studied interactions between nanoparticles (gold and silver) with aminoglycosides such as Kanamycin A, Neomycin. Both nanoparticles were prepared by reducing AuCl4 and AgNO3 using pineapple extract, kanamycin A and neomycin as both reducing and stabilizing agents respectivel...

The S3O2 macrocycle L1 was synthesized by a dithiol-dihalide coupling reaction under high-dilution conditions. The reaction of L1 with K2PdCl4 afforded an exocoordinated complex 1, [cis-Cl2Pd(L1)], which can then be manipulated to provide a heterobinuclear complex 3, {[Pd(L1)Ag(NO3)(2.5)](NO3)(0.5)}n, utilizing endocyclic Pd(II) and exocyclic Ag(I) in a single macrocycle through a successive re...

This study investigated the ability of SDF, and its individual components, silver (Ag+) fluoride (F?) ions, in preventing enamel demineralization under pH-cycling conditions presence or absence twice-daily application. Polished human specimens were assigned to five treatment groups (n = 36 per group): SDF (38 %); followed by application a saturated solution potassium iodide (SDF + KI); nitrate ...

The karyological features of Akis subtricostata was determined for the first time with conventional and silver nitrate staining. diploid number 2n=16 meioformula 7+neoXY represents a deviation from modal karyotype Coleoptera. pericentromeric heterochromatin detected both Giemsa In addition to determining single possible NOR on prophase I nuclei, AgNO3 revealed that several telomeric regions mit...