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In this paper, we introduce the notions of (∈, ∈∨q)-fuzzy subnear-ring, (∈, ∈∨q)-fuzzy ideal and (∈, ∈∨q)-fuzzy quasi-ideal of near-rings and find more generalized concepts than those introduced by others. The characterization of such (∈, ∈ ∨q)-fuzzy ideals are also obtained. 相似文献
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Kuntaiah Kuncham Sajitha Nair Smeer Durani Roopa Bose 《Journal of Radioanalytical and Nuclear Chemistry》2017,313(1):101-112
Ceria nanocrystals were synthesized by template free and cost effective method for highly efficient adsorption of U(VI) from aqueous solutions. In this study we investigated the factors influencing the adsorption behavior of U(VI) onto the ceria nanocrystals like pH, dosage, time of contact and initial metal ion concentration. The mechanism of adsorption was elucidated based on the isothermal and kinetic studies. A monolayer surface adsorption of uranyl ions onto the ceria nanocrystals with an adsorption capacity of 270 mg/g involving adsorptive pore filling and electrostatic interactions was indicated. The ceria nanocrystals could be regenerated and reused without significant reduction of adsorption capacities. 相似文献
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Manikantan Syamala K Abe H Fujita Y Tomimoto K Biju V Ishikawa M Ozaki Y Itoh T 《Langmuir : the ACS journal of surfaces and colloids》2012,28(24):8952-8958
We report on plasmon resonance Rayleigh scattering (PRRS) and surface enhanced Raman scattering (SERS) imaging for inhibition assay of yeast cell walls. This assay reveals that the proteins having alkali sensitive linkage bound to β1,3 glucan frameworks in cell walls are involved in SERS activity. The result is further confirmed by comparison of genetically modified cells and wild type cells. Finally, we find that PRRS and SERS spots do not appear on cell walls when daughter cells are enough smaller than parent ones, but appear when size of daughter cells are comparable to parent cells. This finding indicates the relationship between expression of the proteins that generate SERS spots and cell division. These results demonstrate that PRRS and SERS imaging can be a convenient and sensitive method for analysis of cell walls. 相似文献
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Athiyanathil Sujith Tamitake Itoh Hiroko Abe Ken-ichi Yoshida Manikantan S. Kiran Vasudevanpillai Biju Misturu Ishikawa 《Analytical and bioanalytical chemistry》2009,394(7):1803-1809
The surface of a living yeast cell (Saccharomyces cerevisiae strain W303-1A) has been labeled with silver (Ag) nanoparticles that can form nanoaggregates which have been shown to have surface-enhanced
Raman scattering (SERS) activity. The cell wall of a single living yeast cell has been imaged by use of a Raman microspectroscope.
The SERS spectra measured from different Ag nanoaggregates were found to be different. This can be explained on the basis
of detailed spectral interpretation. The SERS spectral response originates from mannoproteins which cover the outermost regions
of the yeast cell wall. Analysis of SERS spectra from the cell wall and the extracted mannoproteins from the yeast has been
performed for the clarification of variation in SERS spectra. 相似文献
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S Sajitha Lulu A Thabitha S Vino A Mohana Priya Madhusmita Rout 《Natural product research》2016,30(4):464-468
Nonstructural proteins of hepatitis C virus had drawn much attention for the scientific fraternity in drug discovery due to its important role in the disease. 3D structure of the protein was predicted using molecular modelling protocol. Docking studies of 10 medicinal plant compounds and three drugs available in the market (control) with NS2 protease were employed by using rigid docking approach of AutoDock 4.2. Among the molecules tested for docking study, naringenin and quercetin revealed minimum binding energy of ? 7.97 and ? 7.95 kcal/mol with NS2 protease. All the ligands were docked deeply within the binding pocket region of the protein. The docking study results showed that these compounds are potential inhibitors of the target; and also all these docked compounds have good inhibition constant, vdW+Hbond+desolv energy with best RMSD value. 相似文献
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Ravi Pandiselvam Rathnakumar Kaavya Sergio I. Martinez Monteagudo V. Divya Surangna Jain Anandu Chandra Khanashyam Anjineyulu Kothakota V. Arun Prasath S. V. Ramesh N. U. Sruthi Manoj Kumar M. R. Manikantan Chinnaraja Ashok Kumar Amin Mousavi Khaneghah Daniel Cozzolino 《Molecules (Basel, Switzerland)》2022,27(10)
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Pradnya Deshpande Sajitha Nair Shubhangi Khedkar 《Applied biochemistry and biotechnology》2009,158(3):552-560
Water hyacinth (Eichhornia crassipes), an aquatic weed common to the subtropic/tropical regions, was utilized as an inexpensive lignocellulosic substrate for
production of cellulase by Trichoderma reesei. The effects of process parameters like substrate pretreatment, substrate concentration, initial medium pH, mode of inoculation,
and incubation temperature on cellulase production were investigated. Under optimal conditions, a maximal cellulase activity
of 0.22 ± 0.04 IU/ml (approximately 73.3 IU/g cellulose) was recorded at the end of 15-day incubation period. Specific activity
of the enzyme was 6.25 IU/mg protein. Hydrolysis of 1% substrate (water hyacinth) using crude enzyme dosage of 1.2 IU/g water
hyacinth showed 28.7% saccharification in 1 h. The observations in present study indicate that saccharification of cellulose
from water hyacinth was significantly higher by laboratory-produced cellulase than the commercial blend. 相似文献
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Cooperative and FRET‐Assisted Brightness Enhancement in Oligo(phenylene ethynylene): Quantum Dot Organic–Inorganic Nanohybrids
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Dr. Arun Gopi Manikantan Sajitha Reethu Haridas Listo Varghese Dr. Karuvath Yoosaf 《化学:亚洲杂志》2018,13(11):1492-1499
Herein, we combine the ideas of concerted emission from fluorophore ensembles and its further amplification through FRET in an organic–inorganic hybrid approach. Spherical and highly fluorescent organic nanoparticles (FONPs, Φf=0.38), prepared by the self‐assembly of oligo(phenylene ethynylene) (OPE) molecules, were selected as a potential donor material. This organic core was then decorated with a shell of fluorescent CdSe/ZnS core–shell quantum dots (QDs; <d>?5.5 nm, Φf=0.27) with the aid of a bifunctional ligand, mercaptopropionic acid. Its high extinction coefficient (?≈4.1×105 m ?1 cm?1) and good spectral match with the emission of the FONPs (J(λ)≈4.08×1016 m ?1 cm?1 nm4) made them a better acceptor candidate to constitute an efficient FRET pair (ΦFRET=0.8). As a result, the QD fluorescence intensity was enhanced by more than twofold. The fundamental calculations carried out indicated an improvement in all the FRET parameters as the number of QDs around the FONPs was increased. This, together with the localization of multiple QDs in a nanometric dimension (volume≈1.8×106 nm3), gave highly bright reddish luminescent hybrid particles as visualized under a fluorescence microscope. 相似文献
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