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Zinc Oxide nanoparticles synthesis by use of aqueous extracts of Muntingia calabura L.

100%
Manokari M., Shekhawat M. S.
World News of Natural Sciences
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2019
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vol. 22
31-40
EN
Biological synthesis of metal nanoparticles gained worldwide interest due to their rapid, non-toxic, economical, single-step technique and eco-friendly alternative. Green-chemical approach of production of Zinc Oxide (ZnO) nanoparticles (NPs) has been exploited in the field of medicine, food packaging, nano-optical and electrical devices. Muntingia calabura is a multipotent medicinal plant with astounded biological activities and phytoconstituents. The nanoparticles obtained using aqueous extracts of various parts of M. calabura were characterized with UV-VIS spectroscopy to obtain information concerning the optical properties of synthesized ZnO nanoparticles. The proposed green and economical method could be used for large scale production of nanostructures because of its advantages over other physical and chemical methods.
2
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An updated review on Cissus vitiginea L. (Family: Vitaceae) - An important medicinal climber

100%
Manokari M., Shekhawat M. S.
World News of Natural Sciences
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2019
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vol. 22
75-83
EN
Cissus vitiginea L. is a perennial climber with potent medicinal values and used in Indian traditional systems of medicines to cure wounds, diabetes, cardiovascular illness, cancers, particularly bone diseases and arthritis. This plant is kept under rare category in certain parts of India due to its imprudent harvesting from the wild. Assortment of literature on phytochemical studies of this plant shows the presence of alkaloids, flavonoids, triterpenoids, steroids, glycosides, coumarin, tannins, sugar, proteins etc. The reported secondary metabolites have been reviewed to possess immense biological activities in living systems. In the present review, we have summarized the information concerning the botanical description, phytochemistry, toxicology, pharmacology and the traditional medicinal uses of C. vitiginea. It has been concluded that this plant has not been well explored for its various biological activities and the alternate methods of propagation to increase its natural population in the wild.
3
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Biological Approach for the Synthesis and Characterization of Zinc Oxide Nanopaticles from Croton bonplandianum Baill. Extracts

100%
Manokari M., Shekhawat M. S.
World News of Natural Sciences
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2018
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vol. 19
95-107
EN
The biogenesis of nanoparticles recently gained more attention. Here, we report the biogenesis of zinc oxide (ZnO) nanoparticles using aqueous extracts of the leaves, stem, root, flowers and fruits of Croton bonplandianum Baill. at room temperature. Croton bonplandianum is an important medicinal plant used to cure many pathological conditions in the traditional systems of Indian medicines due to the presence of important and specific bioactive compounds in the plant parts of this plant. Aqueous solution of Zinc Nitrate hexahydrate [Zn(NO3)2·6H2O] was used as a precursor and the various plant extracts played as reducing agents. The formation of ZnO nanoparticles was monitored by UV-Visible spectrophotometric analysis. The leaf extract showed strong absorbance peak at 302 nm, stem and fruit at 293 nm, root at 290 nm and flowers at 305 nm.
4
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Folklore Medicinal Claims from Kani Tribes of Kanyakumari District, Tamil Nadu, South India

81%
Subramanian M. P. S., Chelladurai V., Thiruvalluvar M., Manokari M.
World News of Natural Sciences
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2019
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vol. 23
306-320
EN
The ethnic people have their own culture, customs, religion and medical lores gained from their ancestors. The Kani tribal community settled in the forests of Agasthiyamalai of Western Ghats in Kanyakumari and Tirunelveli districts of Tamil Nadu and some places of Kerala also have their own culture and medical lores. Residing inside the forest areas, they depend on natural resources for their food, wellness products and livelihood practices. Each tribal settlement has one or two experts called as Moopans who are well versed in the folk practice of medicine using herbs and animal products. Medico ethno botanical survey conducted by the authors of this paper recorded several claims of which 29 are scrutinized as important. A brief account of the folklore information on native medical lore recorded from the Kani tribes explained in this paper.
5
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An Improved Micropropagation Protocol for Manga Bamboo - Pseudoxytenanthera stocksii (Munro) T.Q. Nguyen

71%
Rajput B. S., Jani M. D., Sasikumar K., Manokari M., Shekhawat M. S.
World News of Natural Sciences
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2019
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vol. 25
141-154
EN
The present report illustrates an improved and reproducible micropropagation system for economically valuable bamboo species Pseudoxytenanthera stocksii using nodal segments. Direct organogenesis from nodal segments was accomplished by culturing on Murashige and Skoog (MS) medium supplemented with 6.0 mg/L 6-benzylaminopurine (BAP). On this medium combination 9.0±0.25 shoots per explant were induced. Shoot multiplication was subjective to the combination of auxins and cytokinins concentrations used and number of repeated transfer of mother explants or subculturing of in vitro regenerated shoot clumps on fresh medium. Maximum 41.9±1.00 shoots were observed on MS medium supplemented with 4.0 mg/L of BAP and 0.25 mg/L of naphthalene acetic acid (NAA). Half strength MS medium containing various concentrations of auxins was used for in vitro root formation. Successful rooting with maximum response was achieved on half strength MS medium + 50% sucrose and 1.0 mg/L IBA (24.3±0.27 roots). The rooted plantlets were planted the soilrite and hardened in the greenhouse for 6-8 weeks. Completely acclimatized plantlets exhibited 96% survivability. The present propagation protocol could satisfy the demand of P. stocksii and could be explored for the commercial propagation of this valuable manga bamboo.
6
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Green synthesis of zinc oxide nanoparticles from aqueous extracts of Sesamum indicum L. and their characterization

61%
Manokari M., Latha R., Priyadharshini S., Cokul R. M., Beniwal P., Shekhawat M. S.
|
EN
Green synthesis of Zinc oxide nanoparticles (ZnO-NPs) is a novel and non-toxic method as compared to the hazardous conventional physical and chemical methods. Herein, we report production of ZnO-NPs for the first time using whole vegetative parts of Sesamum indicum L. The aqueous extracts of various parts of S. indicum were used to synthesize nanoparticles in this study. The synthesized nanoparticles were evaluated using UV-visible spectroscopy for confirmation and characterization. The maximum UV-visible spectral absorption peaks were observed from 293 to 296 nm wavelengths. Leaf and stem reaction mixtures exhibited the sharpest absorption peaks of all the variations at 293 nm and root at 296 nm. This study leads to the development of cost-effective ZnO-NPs synthesis with possible further exploration to serve mankind.
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