In the present work, chemically synthesis compared to Biosynthesized ZnO NPS using aqueous extract of C. halicacabum (0.2, 0.4, and 0.6 mL) for various concentrations. Influence of the synthesized ...products were characterized by Ultra violet–Vis spectroscopy, Photoluminescence, Dynamic light scattering analysis, Zeta potential study, X-ray diffraction, Fourier transform infrared, Scanning electron microscopy and anti-bacterial activities, respectively, UV–visible spectrometry study revealed surface plasmon resonance at 387 nm, Dynamic light scattering analysis shows average particle size of 48 nm whereas zeta potential value confirms the stability of formed zinc oxide nanoparticles, The XRD patterns show the cubic phase and average particle sizes are 65, 62, 55, and 48 nm, The functional groups and band area of the samples were established by FT-IR spectroscopy the presence of both leaf extract and ZnO NPs. The surface morphologies analysis has been hexagonal quartzite structure confirmed from SEM. Finally antibacterial activities against Gram-positive and negative bacteria. The good antibacterial activities of Gram negative bacteria. The present Bio -ZnO NPs nanoparticles suggests that have the great potential applications on various industrial and medical fields of research.
The critical micelle concentration (CMC) of surfactant–Cr(III)–dodecylamine complexes of the type
cis
-
α
-Cr(trien)(C
12
H
25
NH
2
)X
2+
(where trien = triethylenetetramine; X = F
−
, Cl
−
, Br
−
) ...has been studied in
n
-alcohol and in formamide at different temperatures, by electrical conductivity measurements. From the CMC values as a function of temperature, various thermodynamic properties have been evaluated: standard Gibbs energy changes (Δ
mic
G
0
), standard enthalpy changes (Δ
mic
H
0
) and standard entropy changes (Δ
mic
S
0
) for micellization. Critical micelle concentrations have also been measured as a function of the percentage composition of alcohol added. The solvent composition dependences of these thermodynamic parameters were determined. It is suggested that alcohol addition leads to an increase in formamide penetration into the micellar interface that depends on the alcohol’s chain length. The results are discussed in terms of an increased hydrophobic effect, dielectric constant of the medium, the chain length of the alcohols, and the surfactant in the solvent mixture.
Effective use of unique structural and electronic properties of UV light has made more researchers extremely involved for photocatalytical systems. The synthesis of CeO2 nanoparticle (NPs) has been ...successfully achieved by using Cardiospermum halicacabum L leaf Extract. The nanoparticle was characterized by High-resolution scanning electron microscopy (HR-SEM) with elementary dispersive X-ray (EDX), High-resolution transmission electron microscopy (HR-TEM), XRD analysis, FT-IR, FT-Raman, photoluminescence spectroscopy (PL) and UV–Vis DRS. This plant extract CeO2 nanopartricles has high photocatalytic activity of Rh B dye that of chemical method CeO2 nanopartricles and at various parameters was reported. Mineralization of dyes is confirmed by measurements of chemical oxygen demand. The reaction of this nanoparticle was described as a feasible mechanism. This catalyst was found to be stable and reusable. This nanoparticle has electrochemical activity showed highest activity by bio synthesis of CeO2 nanoparticle compared that of chemical synthesis CeO2 nanoparticle was reported in this article.
The infrared spectra of 2-Thiouracil (Thu) have been recorded in the region 4000-400 cm super( -1). The assignments of fundamental frequencies have been proposed on the basis of assignments in ...related molecules. Correlation of vibrational assignments with those of related molecules have been pointed out. The metal ion interactions of Thu with Cd (II), Hg (II), Cu (II), and Zn (II) bromides have been investigated by infrared spectroscopy. The results are consistent with the bonding of ligands, through sulphur in all the complexes. The vibrational frequencies of metal complexes of 2-Thiouracil are correlated with the spectral data of other structurally related pyrimidine thione complexes.
Water is essential for agriculture. Most of the farmers depending upon the ground water for irrigation purpose, but now a days the underground water is going to towards very deep down level. Because ...our environment affected by water drought, pollution and lack of rain falls. It will be creating negative effects to cultivation .In this present study is to assess the underground water quality in Mayiladuthurai Taluk of Nagapattinam District in Tamil Nadu. Totally 30 underground water samples were collected, which covers 10 Revenue villages in Mayiladuthurai Taluk, 3 samples from each Revenue village and analyzed all the physico - chemical parameters such as pH, EC, Ca, Na, K, SO4, Cl, Mg , CO3, and HCO3 and the water quality index SAR, RSC, Geo-chemical types, classification were determined by standard methods, standard calculation and by using standard instruments. Then the irrigation water quality results were compared with standard values Recommended by World Health Organization (WHO), Bureau of Indian Standards (BIS) and Indian Council of Medical Research (ICMR). The proposed work is very essential not only for crop production but also to maintain soil fertility, to maintain hazardous free environment and to enhance the living standard and in turn to uplift our Agriculturist.
The infrared spectra of 2-Thiouracil (Thu) have been recorded in the region 4000-400 cm
-1
. The assignments of fundamental frequencies have been proposed on the basis of assignments in related ...molecules. Correlation of vibrational assignments with those of related molecules have been pointed out.
The metal ion interactions of Thu with Cd (II), Hg (II), Cu (II), and Zn (II) bromides have been investigated by infrared spectroscopy. The results are consistent with the bonding of ligands through sulphur in all the complexes. The vibrational frequencies of metal complexes of 2-Thiouracil are correlated with the spectral data of other structurally related pyrimidine thione complexes.
A study on water quality assessment and its treatment over CNSL resin has been planned. Water samples from various sources like bore well, ground water, municipal water, stagnated water and rain ...water were collected from seven locations in and around Marudhur of Villupuram. These seven samples were analyzed for various parameters such as TDS, pH, total hardness, Calcium hardness, Magnesium hardness, Iron, nitrate, chloride, sulphate and alkalinity in a well-equipped laboratory as per standard methods. Even the probable combination method was employed to check the correctness of determination of various parameters and found to be correct. Out of seven samples four samples (sample 1, 2, 3 and 5) where found to have more hardness they were taken for analysis with CNSL resin. The CNSL resin was prepared in the laboratory and the samples agitated with the CNSL resin. The authors analysed the samples and found the hardness were reduced. The results show that the percentage of removal of cation increases when adsorbent dose increases.
The 12-core AMD Opteron processor, code-named "Magny Cours," combines advances in silicon, packaging, interconnect, cache coherence protocol, and server architecture to increase the compute density ...of high-volume commodity 2P/4P blade servers while operating within the same power envelope as earlier-generation AMD Opteron processors. A key enabling feature, the probe filter, reduces both the bandwidth overhead of traditional broadcast-based coherence and memory latency.
PDF
