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Kishore Kumar Joshi,강선철,Varun Kumar,Ramesh Chand Dubey,Dinesh Kumar Maheshwari,Vivek K. Bajpai 한국환경농학회 2006 한국환경농학회지 Vol.25 No.3
Pseudomonas aeruginosa GRC2, siderophore-producing strain, inhibited growth of Macrophomina phaseolina in vitro and reduced charcoal rot in seeds of Brassica juncea in field when coated with adaptive strains. P. aeruginosa GRC2 and Azotobacter chroococcum AC1 produced indole-3-acetic acid and solubilized insoluble phosphate. A. chroococcum AC1 fixed nitrogen asymbiotically. Urea and diammonium phosphate- adaptive variant strains of P. aeruginosa and A. chroococcum strongly inhibited M. phaseolina in comparison to parental strains. Bacterization of seeds induced seed germination, seedling growth, and enhanced yield of B. juncea by 10.87% as compared to full doses of urea and diammonium phosphate. Both adaptive strains of chemical fertilizers aggressively colonized roots, showing effectiveness to growth and developments of B. juncea.
( Kishore Kumar Joshi ),( Varun Kumar ),( Ramesh Chand Dubey ),( Dinesh Kumar Maheshwari ),( Vivek K. Bajpai ),( Sun Chul Kang ) 한국환경농학회 2006 한국환경농학회지 Vol.25 No.3
Pseudomonas aeruginosa GRC2, siderophore-producing strain, inhibited growth of Macrophomina phaseolina in vitro and reduced charcoal rot in seeds of Brassica juncea in field when coated with adaptive strains. P. aeruginosa GRC2 and Azotobacter chroococcum AC1 produced indole-3-acetic acid and solubilized insoluble phosphate. A. chroococcum AC1 fixed nitrogen asymbiotically. Urea and diammonium phosphate-adaptive variant strains of P. aeruginosa and A. chroococcum strongly inhibited M. phaseolina in comparison to parental strains. Bacterization of seeds induced seed germination, seedling growth, and enhanced yield of B. juncea by 10.87% as compared to full doses of urea and diammonium phosphate. Both adaptive strains of chemical fertilizers aggressively colonized roots, showing effectiveness to growth and developments of B. juncea.
Inkjet-Printable Hydrochromic Paper for Encrypting Information and Anticounterfeiting
Singh, Varun Kumar,Chitumalla, Ramesh Kumar,Ravi, Sai Kishore,Zhang, Yaoxin,Xi, Yongjie,Sanjairaj, Vijayvenkataramana,Zhang, Chun,Jang, Joonkyung,Tan, Swee Ching American Chemical Society 2017 ACS APPLIED MATERIALS & INTERFACES Vol.9 No.38
<P>Developing rewritable papers has gathered immense interest in recent times in view of developing sustainability in print media without exhausting environmental resources. We herein present a rapid and facile procedure. for the fabrication of a communication medium by treating the surface of a paper with synthetic organic molecules, after which plain water could be used as an ink to print and reprint numerous times on the treated paper before disposal. Interestingly, as the paper comes in contact with water, the molecules are driven to reorganize in. a slip-stacked arrangement. This alters their ground and excited state properties by hydrogen-bond assisted nonradiative decay, in which the associated changes are visible to, the naked eye. The changes evolved are sensitive to the solubility parameter of the solvent and thermally reversible, thus linking the hydrochromic property to the paper. Against a background of concerns over a rise in counterfeiting and leaks of confidential information, prospects for encrypted communications and anticounterfeiting is herein demonstrated.</P>
Antibacterial and Pharmacological Evaluation of Fluoroquinolones: A Chemoinformatics Approach
Damini Sood,Neeraj Kumar,Aarushi Singh,Meena Kishore Sakharkar,Vartika Tomar,Ramesh Chandra 한국유전체학회 2018 Genomics & informatics Vol.16 No.3
Fluoroquinolone (FQ) antibiotics are an important class of synthetic antibacterial agents. These are the most extensively used drugs for treating bacterial infections in the field of both human and veterinary medicine. Herein, the antibacterial and pharmacological properties of four fluoroquinolones: lomefloxacin, norfloxacin, ciprofloxacin, and ofloxacin have been studied. The objective of this study was to analyze the antibacterial characteristics of the different fluoroquinolones. Also, the pharmacological properties of the compounds including the Lipinski rule of five, absorption, distribution, metabolism, and excretion, LD50, drug likeliness, and toxicity were evaluated. We found that among all four FQ molecules, ofloxacin showed the highest antibacterial activity through in silico assays with a strong interaction (‒38.52 kJ/mol) with the antibacterial target protein (topoisomerase-II DNA gyrase enzyme). The pharmacological and pharmacokinetic analysis also showed that the compounds ciprofloxacin, ofloxacin, lomefloxacin and norfloxacin have good pharmacological properties. Notably, ofloxacin was found to possess an IGC50 (concentration needed to inhibit 50% growth) value of 0.286 μg/L against the Tetrahymena pyriformis protozoa. It also tested negative for the Ames toxicity test, showing its non-carcinogenic character.
Antibacterial and Pharmacological Evaluation of Fluoroquinolones: A Chemoinformatics Approach
Sood, Damini,Kumar, Neeraj,Singh, Aarushi,Sakharkar, Meena Kishore,Tomar, Vartika,Chandra, Ramesh Korea Genome Organization 2018 Genomics & informatics Vol.16 No.3
Fluoroquinolone (FQ) antibiotics are an important class of synthetic antibacterial agents. These are the most extensively used drugs for treating bacterial infections in the field of both human and veterinary medicine. Herein, the antibacterial and pharmacological properties of four fluoroquinolones: lomefloxacin, norfloxacin, ciprofloxacin, and ofloxacin have been studied. The objective of this study was to analyze the antibacterial characteristics of the different fluoroquinolones. Also, the pharmacological properties of the compounds including the Lipinski rule of five, absorption, distribution, metabolism, and excretion, LD50, drug likeliness, and toxicity were evaluated. We found that among all four FQ molecules, ofloxacin showed the highest antibacterial activity through in silico assays with a strong interaction (-38.52 kJ/mol) with the antibacterial target protein (topoisomerase-II DNA gyrase enzyme). The pharmacological and pharmacokinetic analysis also showed that the compounds ciprofloxacin, ofloxacin, lomefloxacin and norfloxacin have good pharmacological properties. Notably, ofloxacin was found to possess an IGC50 (concentration needed to inhibit 50% growth) value of $0.286{\mu}g/L$ against the Tetrahymena pyriformis protozoa. It also tested negative for the Ames toxicity test, showing its non-carcinogenic character.
Syed Zameer Ahmed Khader,Sidhra Syed Zameer Ahmed,Senthil Kumar Balasubramanian,Thanga kumar Arunachalam,Geetha Kannappan,Mohamed Rafi Mahboob,Ponmurugan Ponnusamy,Kishore Ramesh 한국한의학연구원 2017 Integrative Medicine Research Vol.6 No.2
Background: Diabetes is rapidly rising all over the world at an alarming rate and has changedfrom a mild disorder to major causes of mortality and morbidity in the youth and middle-aged people, and the prevalence is seen especially in six inhabited continents of the globe.The present study aims to explore the antidiabetic, lipid lowering effect of Cassia auriculataL. flowers in alloxan-induced diabetes.Methods: Diabetes was induced using alloxan monohydrate in experimental rats and sub-sequent therapeutic effects of C. auriculata extract and standard drug glibenclamide weremonitored. Bioassay-directed fractionation using silica gel column chromatography wasperformed until pure fractions were isolated. The effect of the treatment was analyzedby hematological parameters and enzyme assays. The pure compounds were confirmedwith thin layer chromatography and high performance liquid chromatography pattern andfurther subjected for characterization.Results: The alterations in blood glucose were monitored throughout the study. There wasa gradual fall in blood glucose and significant changes were observed in lipid profile andmetabolic enzyme after treatment with C. auriculata. Bioassay fractionation representedthat the C2 subfraction produced a dose-dependent fall in blood glucose and lipid profile andupon further purification yielded two pure compounds. The structure of the pure compoundwas elucidated using Fourier transform infrared,1H nuclear magnetic resonance,13C nuclearmagnetic resonance, and mass spectral data.