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101.
102.
Jose Manu Kumari Mahitha Karunakaran Remya Shukla Satyajit 《Journal of Sol-Gel Science and Technology》2015,75(1):38-44
Journal of Sol-Gel Science and Technology - Highly crystalline nanotubes/nanoplates of pure and Ag-doped anatase-titania (TiO2) having high aspect-ratio have been synthesized, without the... 相似文献
103.
104.
The total γ-ray interaction cross-sections on mixed absorbers were determined at 662 keV with a view to study the effective
atomic numbers for γ-ray absorption under narrow beam good geometry set-up. The measurements were taken for the combination
of metallic absorbers like aluminium, copper, lead and mercury and also for the simulated absorbers by rotating the targets.
ORTEC HPGe and NaI(Tl) detectors were used for detection of γ-rays. The experimental results compare favourably with theoretical
values derived from XCOM package and suggest the usefulness of the concept of effective atomic numbers and the utility of
the rotating absorbers technique. 相似文献
105.
Chockalingam Karunakaran Vaithiyalingam Chidambaranathan 《Reaction Kinetics and Catalysis Letters》2002,77(1):139-145
The oxidation of 14 para-, meta-, and ortho-substituted phenyl methyl sulfides with isonicotinium dichromate in acetonitrile, brought out by p-toluenesulfonic acid, follows a common mechanism, conforms to the isokinetic relationship but not to any of the linear free energy relationships; the isokinetic temperature lies in the experimental temperature range. 相似文献
106.
Oxidation of organic sulfides by anhydrous H2O2using percarbonate in glacial acetic acid is a second order reaction and is independent of the acidity of the medium. The oxidation conforms to the isokinetic and Hammett relationships. 相似文献
107.
A. Sankaranarayanan Govindarasu Munivel Gopalu Karunakaran Shine Kadaikunnan Naiyf S. Alharbi Jamal M. Khaled Denis Kuznetsov 《Journal of Cluster Science》2017,28(3):995-1008
The present study focused on the green synthesis of silver nanoparticles (AgNPs) using Arachis hypogaea (ground nut) root extract for the antibacterial and clinical application. The presence of major phytochemical compounds are found to be 2H-Pyaran,2,5-diethenyltetrahydro, Didodecyl phthalate, Decanoic acid, Tetradecanoic acid, Bis(2-ethylhexyl) phthalate, Dodecanoic acid, Phosphonic acid, 2-(4-Methoxyphenyl)-5-(4-methoxynaphthyl) thiophene and Methyl 2-(N-Benzylimino)-4-chloro-3,3-dimethylbutanoate by GC–MS. Nanoparticles synthesis is confirmed by UV–Vis analysis by observing the maximum absorption spectrum at 450 nm. XRD and SEM–EDX results reveals the synthesized nanoparticles are cubic crystalline with agglomerated particles of silver oxide with biomolecules present around it. TEM images clearly shows that the biosynthesized nanoparticles are mostly spherical and irregular shaped with an average particles size of 30 nm. Highest susceptibility pattern of silver nanoparticle against Enterococcus sp. (35 ± 0.4 mm) which followed by Pseudomonas sp. (33 mm) and Staphylococcus aureus (29 mm). Green synthesized nanoparticles are coated over the commercially available clinical band aid cloth by dip coating method. Silver nanoparticle incorporated band aid cloth showed good antibacterial activity against the harmful bacteria which usually cause infection and interfere during wound healing. Our findings revealed that green nanoparticle has a good antibacterial action against harmful bacteria and showed good response for efficient clinical application. 相似文献
108.
Lebo Xu John Farrell Raghuraman G. Karunakaran Apiradee Honglawan Shu Yang 《Journal of polymer science. Part A, Polymer chemistry》2013,51(5):1215-1222
A dual‐functional copolymer, poly(4‐styrenesulfonyl azide‐co‐t‐butyl‐methacrylate), with built‐in photoacid labile and photocrosslinkable components was designed and synthesized by radical copolymerization. The mixture of copolymer and photoacid generators was spin coated on aminosilane treated Si wafers and polycarbonate (PC). When exposed to 365 nm UV light, photoacids were generated, which decomposed the acid labile groups, t‐butyl‐ester, to carboxylic acid in the exposed region, leading to drastic change of wettability from hydrophobic to hydrophilic after developing the film in an aqueous base solution. The patterned polymer film could be subsequently photoimmobilized on the substrate under 254 nm deep UV exposure through C? H insertion via exited azide groups. 1H‐NMR and Fourier transform infrared spectra confirmed the synthesis of the copolymer, and the photodecomposition and photografting reactions occurred orthogonally at 365 and 254 nm, respectively, without interfering each other. On the patterned surfaces, including a hexagonal dot array and a gradient line array, we demonstrated selective wetting in the 365 nm exposed regions. On the gradient line array, we showed an interesting ratchet wetting pattern. Finally, we showed that the copolymer could be used to modify the wettability of PC while maintaining its high optical quality. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2013 相似文献
109.
Photodegradation of phenol on TiO2 P25 Degussa, TiO2 Hombikat, TiO2 anatase, and ZnO nanoparticles exhibits identical photokinetic behavior. The degradation rates of 15 ortho‐, meta‐ and para‐ substituted phenols on the four semiconductor nanocrystals do not conform to the electronic effect of the substituents but show some common features. While the orthosubstituents slow down the reaction, nitro and hydroxyl groups enhance the same. The effects are rationalized. © 2008 Wiley Periodicals, Inc. Int J Chem Kinet 41: 275–283, 2009 相似文献
110.
The reaction constants for the oxidations of primary aliphatic alcohols with 12 dichromates and halochromates of heterocyclic bases do not differ significantly indicating operation of a common mechanism. © 2004 Wiley Periodicals, Inc. Int J Chem Kinet 37: 5–9, 2005 相似文献