The chirality of the Co vortex can be determined from measurements of the minor loop, and the chirality of the NiFe vortex can be set using two-step field cycling at two different field angles.”
“Natural dyes find use in the coloring of textiles, drugs, cosmetics, etc. Owing to their nontoxic effects, they are also used for coloring various food products. In the present study antimicrobial properties of 8 food dyes against 10 bacteria and 5 fungal organisms were investigated. It was observed that red dyes

showed best antibacterial SB273005 supplier activity while yellow dyes showed better antifungal activity. Dyes obtained from catechu (Acacia catechu) and myrobalan (Terminalia chebula) is not sufficiently effective against the tested microorganisms. In addition to antimicrobial analysis, antioxidant activity by 3 different methods was also investigated. In all the methods, red dye was found to have greater antioxidant activity. It suggest that the addition of these dyes in food not only enhances the value addition by making the food more presentable but also shall address the issue of food supplementation with substances that are good PI3K inhibitor antibiotics and antioxidants, subsequently proving to be health benefactors.”
“A new triterpenoid, 2,24diacetoxy3hydroxyolean12en28oic acid (1), was characterised from the rhizomes

of Nelumbo nucifera Gaertn by spectroscopic and chemical methods along with four known compounds, hyptatic acid-A (2,3,24trihydroxyolean12en28oic acid) (2), maslinic acid (2,3dihydroxyoleane12ene28oic acid), betulin and lupeol.”
“Optical absorption and emission intensities are

SN-38 investigated for Nd3+ in nanocrystalline Nd3+:Y2O3. Room temperature absorption intensities of Nd3+(4f(3)) transitions in synthesized Nd3+:Y2O3 nanocrystals have been analyzed using the Judd-Ofelt (J-O) approach to obtain the phenomenological intensity parameters. The J-O intensity parameters are used to calculate the spontaneous emission probabilities, radiative lifetimes, and branching ratios of the Nd3+ transitions from the upper multiplet manifolds to the corresponding lower-lying multiplet manifolds L-2S+1(J) of Nd3+(4f(3)). The emission cross sections and room temperature fluorescence lifetimes of the important intermanifold F-4(3/2)-> I-4(J) (J=9/2,11/2,13/2,15/2) transitions have been determined. We also compare the spectra of the Nd3+:Y2O3 nanocrystals to those of the nanocrystals embedded in polymeric matrices of epoxy and chitosan, and we find similarities in terms of the detailed Stark energy levels of the Nd3+ ion in the Y2O3 nanocrystalline host. The 300 K spectra are analyzed for the energy (Stark) level transitions between the L-2S+1(J) multiplet manifolds of Nd3+(4f(3)). The results of this study are also compared with a crystal-field splitting analysis reported earlier for single-crystal Nd3+:Y2O3 grown by a modified flame fusion method.