Green Synthesis of Silver Nanoparticles using Stingless bee (Trigona iridipennis Smith) honey and evaluation of their antibacterial activity PDF Download
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Author: Prem Jose Vazhacharickal
Publisher: Prem Jose
ISBN: 1795734906
Category : Reference
Languages : en
Pages : 37
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Book Description
Nanotechnology is an emerging field of science. It has increased applications in diverse area for the development of new materials at nanoscale levels. Synthesis of nanoparticles using biological methods is referred as greener synthesis of nanoparticles. Green synthesis provides advancement over chemical and physical method as it is cost effective, environment friendly, and safe for human therapeutic use. Stingless bees are highly social (eusocial) insects which populated the tropical earth 65 million years ago longer than honey bees. Among the most common uses of stingless bee honey are to treat stomach disturbance, cough, tonsillitis, sore throat, stomach and intestinal ulcers, cold, disease of the mouth, mucus membrane, and as a wound dressing due to its antimicrobial activity. Stingless bees honey were used to for the green synthesis of silver nanoparticles. Antimicrobial activity of the green synthesised nanoparticles were tested used agar diffusion method against Escherichia coli (E. coli), Pseudomonas aeruginosa, Staphylococcus aureus, Salmonella typhi and Klebsiella pneumoniae. The results showed that stingless bee honey could be effectively used for the synthesis of silver nanoparticle. The synthesized silver nanoparticles shows antibacterial activity on both Gram positive and Gram negative bacteria. This biosynthesis of nanoparticles is cost efficient, pollutant free and simpler to synthesize.
Author: Prem Jose Vazhacharickal
Publisher: Prem Jose
ISBN: 1795734906
Category : Reference
Languages : en
Pages : 37
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Book Description
Nanotechnology is an emerging field of science. It has increased applications in diverse area for the development of new materials at nanoscale levels. Synthesis of nanoparticles using biological methods is referred as greener synthesis of nanoparticles. Green synthesis provides advancement over chemical and physical method as it is cost effective, environment friendly, and safe for human therapeutic use. Stingless bees are highly social (eusocial) insects which populated the tropical earth 65 million years ago longer than honey bees. Among the most common uses of stingless bee honey are to treat stomach disturbance, cough, tonsillitis, sore throat, stomach and intestinal ulcers, cold, disease of the mouth, mucus membrane, and as a wound dressing due to its antimicrobial activity. Stingless bees honey were used to for the green synthesis of silver nanoparticles. Antimicrobial activity of the green synthesised nanoparticles were tested used agar diffusion method against Escherichia coli (E. coli), Pseudomonas aeruginosa, Staphylococcus aureus, Salmonella typhi and Klebsiella pneumoniae. The results showed that stingless bee honey could be effectively used for the synthesis of silver nanoparticle. The synthesized silver nanoparticles shows antibacterial activity on both Gram positive and Gram negative bacteria. This biosynthesis of nanoparticles is cost efficient, pollutant free and simpler to synthesize.
Author: Susan Sungsoo Cho
Publisher: CRC Press
ISBN: 1040069584
Category : Medical
Languages : en
Pages : 345
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Book Description
While there is little dispute that probiotics and prebiotics, alone and together, have been proven to promote gastrointestinal health and proper immune function, the challenge faced by researchers is finding not only the right combinations, but also finding those that are fully compatible with the formulation, processing, packaging, and distribution of functional foods. This volume comprehensively explores these variables and highlights the most current biological research and applications. It examines the sources of prebiotics and probiotics, describes the physiological functions of both products, and discusses promising applications for a plethora of disorders.
Author: Cliff Van Eaton
Publisher: Exisle Publishing
ISBN: 1775591638
Category : Business & Economics
Languages : en
Pages : 258
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Book Description
New Zealand's manuka honey is known around the world. It fetches extremely high prices, and beekeepers do everything in their power to produce as much of it as they can. Wound dressings containing manuka honey are used in leading hospitals, and it has saved the lives of patients infected with disease-causing bacteria that are resistant to standard antibiotic drugs. In so doing, it has forced the medical profession to re-think its position on the therapeutic properties of natural products. This book chronicles the remarkable 'rags-to-riches' story of manuka honey, as seen through the eyes of a beekeeping specialist who watched it unfold from the very beginning. It's a great science tale of an unassuming university lecturer and his hardworking lab assistant who found something totally unexpected in a product everyone had written off. And it's an entertaining account of the way that simple discovery magically caught the international media's attention, helping some enterprising New Zealanders with a love of bees to develop manuka honey-based products and take them to the rest of the world. The book describes the remarkable antibacterial and therapeutic properties of manuka and the range of uses it has.
Author: Nilay Kanti Barman
Publisher: Springer
ISBN: 3319335758
Category : Science
Languages : en
Pages : 123
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Book Description
This book discusses the perceptions and sketches, geological background, materials and coastal processes of the East Coast of India. It also suggests strategies for effectively managing natural coastal processes in these areas. India has a coastline of about 7,516 km with a variety of coastal extensions, which developed at different time scales, producing permanent variations in the morphologies of the coastal areas through hydrodynamic, fluvial, aeolian and terrestrial processes. The book focuses on the Balasore coast, an area drained by three main rivers (the Subarnarekha, the Dugdeugi and the Burahbolong), which impacts the coastal morphodynamic processes of the area and accounts for their multifaceted nature. Large drops or increases in the sediment supply within a short time span or over prolonged periods cause shoreline shifting. Eight satellite images from 1975, 1980, 1990, 1995, 2000, 2005, 2010 and 2013 were used to measure the shoreline dynamics, and a reference line was established using first order polynomial model with base data with 0.5 pixel root mean square error (RMSE) accuracy. The end point rate (EPR) model was adopted for estimating the future position of the shoreline. In order to assess the beach morphodynamics, the coastal modeling system (SMC) was used, which incorporates with a series of appliances and numerical models structured consistent with the space and time scale of the different dynamics affecting the littoral and beach morphology based on diverse thematic and reference documents. This study employed short-term analysis using the MOPLA module of the SMC system, which consists of three attached modules: the wave transformation module (Oluca), the depth-averaged currents module (Copla) and the sediment transport and morphological evolution module (Eros). The shoreline dynamics findings show that the magnitude of erosion is higher in the northern part of the coastline in the left bank area of the Subarnarekha river estuary and in the estuarine part of the Dugdugi and Burahbalang rivers. The southern part of the shoreline near Rasalpur and Joydevkasba is relatively stable, and the study suggests that the current shoreline shift trend will continue in the future. The SMC model indicates that the wave height, significant wave height, current velocity and the potential transport of sediment at the Kirtaniya study point are high, while at Choumukh they are low and at the Rasalpur study point they are intermediate.
Author: Arun Kumar
Publisher: New India Publishing
ISBN: 9788189422738
Category : Science
Languages : en
Pages : 408
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Book Description
With special reference to India.
Author: New Hampshire Agricultural Experiment Station
Publisher:
ISBN:
Category : Agricultural experiment stations
Languages : en
Pages : 40
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Book Description
Author: Ethel M. Naish
Publisher: DigiCat
ISBN:
Category : Religion
Languages : en
Pages : 191
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Book Description
This is a collection of lectures on Browning's attitude towards dogmatic religion. Excerpt: "To this faith, to this assurance, is largely attributable to the influence unquestionably possessed by Browning as a teacher in the nineteenth and twentieth centuries. The intentionally didactic element in the work may not honestly be ignored to whatever degree it is held to militate against artistic merit. Amid the throng of seekers after Truth in the world of poetry, Browning stands pre-eminent as one who not only sought Truth but, having gained what he held to be Truth, kept it as "the sole prize of Life."
Author: J.P.N. Pathak
Publisher: Springer Science & Business Media
ISBN: 9780792320869
Category : Science
Languages : en
Pages : 214
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Book Description
Immunity in insects is different from immunity in vertebrates. Insects lack immunoglobulins even though they are capable of reacting against foreign components with effective defense mechanism. There has been a marked advancement in most of the fields of science in the past two decades. Insect immunity is also one of them. It is a developing subject which is now established as a new branch in insect study. This treatise is an attempt to compile meaningful articles of leading workers in this field, nevertheless we do not claim that leadership in insect immunity is by any means restricted to them. The idea is to provide a vibrant description of various aspects of "Insect Immunity". With the rapid development of the subject, it is difficult for any one author to discuss all the aspects of an area in a limited number of pages, even then they have done their utmost to include the entire development of the subject in their articles. The treatise deals with insect haemocytes, their population, isolation and role in defense mechanism, humoral encapsulation, inducible humoral antibacterial immunity, cellular immune reactions, role of endocrines, role of prophenol oxidase system in cellular communication, haemagglutinins and impact of parasite on insect immune system. Some topics could not be covered because experts in those area though willing could not complete their commitment within time limits.
Author:
Publisher:
ISBN:
Category : Land use
Languages : en
Pages : 376
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Book Description
Author: Kamel A. Abd-Elsalam
Publisher: Elsevier
ISBN: 0128245093
Category : Technology & Engineering
Languages : en
Pages : 798
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Book Description
Green Synthesis of Silver Nanomaterials illustrates how to biologically scale up silver nanoparticle synthesis. This book covers green synthesis of silver nanomaterials, via plants, agricultural waste, fungi, and microorganisms. Sections cover the synthesis and characterization of chemical and green synthesis, various types of silver nanomaterialism, the ability of different fungal species, such as filamentous fungi, to produce silver nanoparticles, the microbial synthesis of silver NMs, biosynthesis mechanisms, toxicity, fate and commercialization. As examples, greener pathways and mechanisms, toxicity of silver nanoparticles in aquatic life and in natural eco-systems, and strategies for the scaling up of green-synthesized nanomaterials are discussed. With the extended work in enhancing nanomaterials synthesis performance, and discovering their biomedical, environmental, and agricultural applications, it is hoped that the execution of these methods on a large scale and their industrial applications in different fields will take place in the near future. - Assesses the impact of a large variety of silver-based nanostructures in the biomedical, environmental and agri-food sectors - Discusses the major synthesis methods used for effectively processing plant-based silver nanoparticles - Outlines the potential and major challenges for adopting green synthesis methods on a mass scale
