Here, we describe the in-plane patterning of thin films of poly(acrylic acid) (PAA) within microfluidic channels by crosslinking with metal cations. The patterned polymer and embedded metal ions (Pb, Ba, Zn, Pd, Cu, La, or Ho) are a platform for the rapid “on-chip” growth of patterned metallic and semiconductor nanoparticles; these particles, in turn, serve as catalysts for electroless depositi...

Thermal decomposition in a thermobalance of Fe(CO), adsorbed on alkali-metal, hydrogen-Y, dealuminated Y, L and omega zeolites proceeds stepwise via slow decarbonylation at low and high temperatures, separated by a fast endothermic reaction. Average CO/Fe ratios have been determined after each step. From i.r. results the former intermediates are assigned to species bearing bridging CO, whereas ...

The isostructural compounds Sr(4)Bi(3), Ba(4)Bi(3), and Ba(4)As( approximately )(2.60) were prepared by direct reactions of the corresponding elements and their structures determined from single-crystal X-ray diffraction data as anti-Th(3)P(4) type in the cubic space group I43d, Z = 4 (a = 10.101(1) A, 10.550(1) A, 9.973 (1) A, respectively). The two bismuth compounds are stoichiometric, and th...

The isostructural title compounds were prepared by direct reactions of the corresponding elements, and their structures were determined from single-crystal X-ray diffraction data in the monoclinic space group C2/m, Z = 2 (K5As4, a = 11.592(2) A, b = 5.2114(5) A, c = 10.383(3) A, beta = 113.42(1) degrees; K5Sb4, a = 12.319(1) A, b = 5.4866(4) A, c = 11.258(1) A, beta = 112.27(7) degrees; Rb5Sb4,...

Equilibrium isotherms and the adsorption kinetics of heavy metals onto chitosan were studied experimentally. Chitosan, a biopolymer produced from crustacean shells, has applications in various areas, particularly in drinking water and wastewater treatment due to its ability to remove metallic ions from solutions. The adsorption capacity of chitosan depends on a number of parameters: deacetylati...

the natural teeth are the most durable organs in the bodies of vertebrates, and humankind’s understanding of their own past and evolution relies heavily upon remnant dental evidence found as fossils. the use of features unique to the human dentition as an aid to personal identifi cation is widely accepted within the forensic fi eld. comparative dental identifi cations play a major role in ident...

Electrolysis of Na and K salts of the anion dicyano(phthalocyaninato)cobalt(III) (Co(Pc)(CN)2) in ethanol yields one-dimensional partially oxidized salts of A[Co(Pc)(CN)2]2.4(EtOH) (A = Na and K). The cationic component is the supramolecular cation [A(EtOH)4] , which forms hydrogen bonds with the CN ligands of the Co(Pc)(CN)2 units. The crystal shows metallic conductivity, in contrast to the th...

The current mini-review describes the toxic effects of zinc inhalation principally in the workplace and associated complications with breathing and respiration. The International ClassiÞ cation of Functioning, Disability and Health Criteria were used to speciÞ cally select articles. Most of the commercial production of zinc involves the galvanizing of iron and the manufacture of brass. The reco...