Tetraaza Macrocyclic complexes of transition metals of Ni (II), Cu(II), Cr(III), Fe(III), Mn(II) were synthesized in methanolic media by template method. The complexes were characterized by elemental analysis, UVVis, Infrared spectroscopy. In vitro antibacterial activity of macrocyclic complexes against five bacteria i.e. Streptococcus mutans, Escherichia coli, Staphylococcus aureus, Streptococ...

Introduction: An accurate phase function is necessary for precise photometric correction of the Clementine lunar UVVIS images. Although several researchers have proposed photometric models for Clementine UVVIS images using empirical phase functions (e.g., [1] [2] [3]), additional work is required for correction of the data at small phase angle (<20), because the phase function at small phase an...

[1] An analysis of the Northern Imbrium Noritic (NIN) region was conducted using Clementine UVVIS multispectral images and derived band parameters. Band parameters were used to map spatial variations in composition and to aid in general separation of compositional signatures from effects such as maturity and topography. Compositional trends in which the abundance of mafic materials relative to ...

Bio-chemical reduction method was employed to synthesise the silver nanoparticles (Ag NPs) by aging the mixture of the aqueous extract of the Trachyspermum Ammi (TA, Ajwain) seeds and AgNO3 solution at different time interval. Reaction time of AgNO3 and TA could accelerate the reduction rate of Ag and affect AgNPs size and concentration of NPs. X-ray diffraction (XRD) studies confirms the forma...

Fluorescence and phosphorescence are photon emission processes that occur during molecular relaxation from electronic excited states. These photonic processes involve transitions between electronic and vibrational states of polyatomic fluorescent molecules (fluorophores). The Jablonski diagram (Figure 1) offers a convenient representation of the excited state structure and the relevant transiti...

Many attempts have been made to derive elemental abundances of the lunar surface from multispectral images. A method to predict Fe abundance based on Clementine UVVIS data is presented in [1]. A refined method which also addresses the TiO2 abundance is provided in [2], demonstrating that in spite of issues posed by soil maturity, grain size, mineral content, topographic shading, and glass conte...

Introduction: This contribution explores the mapping of spectral parameters of lunar features using the Clementine UVVIS+NIR data set covering the wavelength range between 415 and 2000 nm [1]. The extracted spectral features are the minimum and depth of the principal absorption trough near 1000 nm and the corresponding values of secondary absorption features present at higher wavelengths, as we...