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K. Karthick ¹, P. Kumaravel ¹, P. Hemalatha ¹, L. Thamaraiselvi ¹

Affiliations
1 Department of Biotechnology, Vysya College, Salem- 636103, Tamil Nadu, IN

Abstract

Disease causing microbes that have become resistant to drug therapy are an increasing public health problem. Therefore there is an urgent need to develop new bactericides. The present study deals with synthesis of silver nanoparticles were prepared from Proteus mirabilis and their shape and size distribution characterized by particle analyzer and scanning electron microscopic study (SEM). Ultraviolet-Visible (UV-VIS) spectrum of the aqueous media obtained from the Proteus mirabilis containing silver ion showed a peak around 420nm corresponding to the plasmon absorbance of silver nanoparticles. Invitro studies indicated that the formed silver nanoparticles showed variable antimicrobial activity against Staphylococcus aureus, Pseudomonas species, Proteus vulgaris and Bacillus subtilis. These results suggest that silver nanoparticles can be used as effective growth inhibitors in various microorganisms, making them applicable to diverse medical devices and antimicrobial control systems.

Keywords

Silver Nanoparticles, Proteus mirabilis, Antimicrobial Activity.

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K. Karthick ¹, P. Kumaravel ¹, P. Hemalatha ¹, L. Thamaraiselvi ¹

Affiliations
1 Department of Biotechnology, Vysya College, Salem- 636103, Tamil Nadu, IN

Abstract

Disease causing microbes that have become resistant to drug therapy are an increasing public health problem. Therefore there is an urgent need to develop new bactericides. The present study deals with synthesis of silver nanoparticles were prepared from Proteus mirabilis and their shape and size distribution characterized by particle analyzer and scanning electron microscopic study (SEM). Ultraviolet-Visible (UV-VIS) spectrum of the aqueous media obtained from the Proteus mirabilis containing silver ion showed a peak around 420nm corresponding to the plasmon absorbance of silver nanoparticles. Invitro studies indicated that the formed silver nanoparticles showed variable antimicrobial activity against Staphylococcus aureus, Pseudomonas species, Proteus vulgaris and Bacillus subtilis. These results suggest that silver nanoparticles can be used as effective growth inhibitors in various microorganisms, making them applicable to diverse medical devices and antimicrobial control systems.

Keywords

Silver Nanoparticles, Proteus mirabilis, Antimicrobial Activity.

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P. Hemalatha ¹, M. K. Veeraiah ², K. V. Anasuya ³, Anupama C. Mousumi Das ⁴

Affiliations
1 Department of Chemistry, Sri Siddhartha Institute of Technology, Tumkur, Karnataka, IN
2 Sri Siddhartha Institute of Technology, Tumkur, Karnataka, IN
3 Department of Chemistry, Govt. First Grade College, Koratagere, Tumkur, Karnataka, IN
4 Department of Bio-Technology, Siddaganga Institute of Technology, Tumkur, Karnataka, IN

Abstract

Copolymer of N-vinylpyrrolidone (NVP) and Acrylic acid (AA) was prepared by using hydrogen peroxide as initiator in Tetrahydrofuran medium at 45⁰C under inert atmosphere. The copolymer (B) prepared was made to react with N, N – Diethylaminoethanol (DEAE) to form an ester (EB) through acid group of acrylic acid. Synthesized copolymer and its graft were characterized by FTIR, H¹NMR and C¹³NMR.  The antimicrobial property of these compounds was investigated by agar well diffusion method. Two grams +ve bacterial strains used were Bacillus pumillus – 1640 and Staphylococcus aureus – 3160, two grams –ve bacterial strains were Escherichia coli – 45 and Enterobacteraerogenes – 2822. The fungal strains used were Fusariumoxysporum – 2087 and Aspergillusniger – 4325.

Keywords

N-Vinylpyrrolidone, Acrylic Acid, FTIR, H¹NMR, C¹³NMR, Anti-Microbial Activity.

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P. Hemalatha ¹, V. Nivetha ¹

Affiliations
1 Department of Mathematics, Vellalar College for Women, Erode – 638 012, Tamilnadu, IN

Abstract

An F-magic labeling in an F-decomposable graph G of order p and size q is a bijection f :V (G)∪ E(G)→{1,2....p + q} such that for every copy F in the decomposition, Σ_VeV(F)f(v) + Σ_e∈E(F)f(e) is constant. The function f is said to be F-E super magic if f (E(G)) = {1,2,....q}. This article contains, a necessary and some sufficient conditions for some even regular and odd regular graphs G to have an (2k +1) - factor E-super magic decomposition, for k ≥1.

Keywords

F-Decomposable Graph, F-E Super Magic Labeling, (2k + 1)-Factor E-Super Magic Decomposition of Graphs.

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P. Hemalatha ¹, R. Chitra ¹

Affiliations
1 Agricultural Research Station (T.N.A.U.), Bhavanisagar, Erode D.T. (T.N.), IN

Abstract

Turmeric occupies about 6 per cent of the total area under spices and condiments in India. It is a long duration crop and the initial growth of turmeric is rather slow and takes about 4-5 months to cover the interspace. Therefore, the available space between the rows of turmeric could be effectively utilized by growing short duration crops like, vegetables, cereals etc. Hence, it is worthwhile to explore the possibilities of growing compatible crops with turmeric. With this background, this research project was formulated to find out the best compatible intercrop with turmeric, to study the effect of intercrops on growth and yield of turmeric and to determine the economic feasibility of turmeric based intercropping. In a nutshell, taking into consideration of the performance of various treatments in this experiment, it can be concluded that growing onion as an intercrop was found to be the best with respect to turmeric growth characters like plant height, number of leaves per plant, leaf length and leaf breadth. Although intercropping turmeric with cowpea is found compatible with maximum fresh turmeric rhizome yield per hectare (31.03 t/ha), the maximum B : C ration (2.53:1) was registered by turmeric intercropped with okra followed by turmeric + chilli (2.51:1). The monocropping of turmeric recorded the lowest B:C ration (1.70:1) among all the treatments.

Keywords

Intercrops, Turmeric, Compatibility, Equivalent Yield, Benefit Cost Ratio.

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P. Hemalatha ¹, V. Sudha ¹

Affiliations
1 Department of Mathematics, Vellalar College for Women, Erode – 638 012, Tamil Nadu, IN

Abstract

The oblong numbers are in the form n(n+1), where n = 1,2, . . . . i.e., the oblong numbers are 2, 6, 12, . . . . If the vertices of the given graph G are labeled with oblong numbers and the edges of the graph are labeled with mean of the labels at the end vertices then G is said to have Oblong Mean Prime Labeling (OMPL). Similarly, if the vertices of G are labeled with oblong numbers and the edges of the graphs are labeled with mean of the absolute difference of the labels at the end vertices then G is said to have Oblong Difference Mean Prime Labeling (ODMPL). In this paper, the Oblong Mean Prime Labeling and Oblong Difference Mean Prime Labeling of Complete Graphs (CGs) K_n, n≥3 and Complete Multipartite Graphs (CMGs), K n n n n i 1 2 t 1 , , , , where 1i t ≤ ≤ have been investigated and obtained the results for such graphs.

Keywords

Complete Graphs (CGs) and Complete Multipartite Graphs (CMGs), Oblong Difference Mean Prime Labeling(ODMPL), Oblong Mean Prime Labeling (OMPL)

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