Mirabilis jalapa is one of the medicinally important shrubs used in traditional medicine, belongs to the family Nyctaginaceae and commonly called as 4’O clock plant. M. jalapa plant extract contains biologically active substances that exhibit microbicidal or microstatic effects against various diseases causing microbes. The plant has high medicinal properties such that the indigenous people of Mexico use it to cure many infirmities including dysentery, diarrhoea, muscular pain and abdominal colic. It is used for the treatment of various infections. Parts of the plant are used to combat dyspepsia and other digestive disorders. The extract of yellow, red color flower variety and green leaf of M. jalapa can be used as natural food color instead of artificial color. The main advantage of using these plant extracts are they have high antimicrobial and have high antioxidant activity. It has the capacity to resist the bacteria like Bacillus, Salmonella, Klebsiella, E coli, Staphylococcus with the help of Silver nanoparticles. The plant has also proved to possess antibacterial, antiviral, and antioxidant activity. Nanoparticles are defined as particulate dispersions or solid particles with a size in the range of 10-1000nm. The drug is dissolved, entrapped, encapsulated or attached to a nanoparticle matrix. Depending upon the method of preparation, nanoparticles, nanospheres or nanocapsules can be obtained. Nanocapsules are systems in which the drug is confined to a cavity surrounded by a unique polymer membrane, while nanospheres are matrix systems in which the drug is physically and uniformly dispersed. Antioxidants are used as food additives to help guard against food deterioration. Exposure to oxygen and sunlight are the two main factors in the oxidation of food, so food is preserved by keeping in the dark and sealing it in containers or even coating it in wax, as with cucumbers. However, as oxygen is also important for plant respiration, storing plant materials in anaerobic conditions produces unpleasant flavours and unappealing colors. Consequently, packaging of fresh fruits and vegetables contains an ~8% oxygen atmosphere.

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

This book describes various strategies for the synthesis of green nanoparticles using plant extracts and microbes, including the advantages and disadvantages of different methods and their applications. After discussing strategies for and the potential of green synthesis of noble metal nanoparticles, it highlights the role of the solvent system. The book then explores the stability/toxicity of nanoparticles and the associated-surface engineering techniques for achieving biocompatibility, and examines the antimicrobial efficacy of green nanoparticles with regard to various bacterial pathogens, as well as the underlying cytotoxicity mechanisms. Lastly, the book addresses the potential applications of various green nanoparticles in cancer theranostics, and reviews a number of plant-mediated nanoparticles as potential pharmaceutical agents. Given its scope, the book will be of interest to all scientists and students wanting to learn more about the synthesis and applications of green nanoparticles.

This book examines the interactions of nanomaterials with the biological system. The chapters of the book explore the natural and synthetic biomaterials that modulate immune responses for their applications in drug delivery and tissue engineering. Further, the book discusses the implications of the physiochemical properties of nanoparticles and their microenvironment on their interactions with biological systems. The chapters also present the recognitive capabilities of biomaterials for the development of novel strategies for the detection and treatment of autoimmune disorders. The book also introduces nanotechnology platforms for drug delivery and highlights current and emerging nanotechnologies that could enable novel classes of therapeutics. Towards the end, the book reviews the efficiency of drug-loaded nanoparticles in modulating the functioning of the biological milieu for improved disease treatment. Lastly, the book outlines the ethical issues regarding the use of nanoparticles for in vitro and in vivo applications. Given its scope, it is a valuable resource for graduate students and researchers interested in understanding the biomedical applications of nanoparticles and their interactions with the biological milieu.

The generation of well-defined nanoparticles of excellent size and shape involves physical and chemical methodologies that are complicated, expensive, and produce hazardous toxic waste that is harmful to the environment and to human health. In order to combat the disadvantages of these methods, scientists have created “the biological method,” a new synthetic methodology that serves as a proper alternative to physical and chemical methodologies because of its easy utility, low cost, rapid synthesis, controlled size characteristics, controlled toxicity, and eco-friendliness. Nanobiotechnology is the science in which living matter can be manipulated and exploited to produce materials within the nano-scale. It is a multidisciplinary field of science framed by biology, chemistry, engineering, materials, and life sciences. Different biological entities can be exploited to yield biologically synthesized nanomaterials including bacteria, actinomycetes, yeast, fungi, viruses, algae, plant extracts, and agro-industrial waste extracts. This book represents a comprehensive review concerning the state of the art in nanobiotechnology, emphasizing the use of diverse biological entities in the science, and its versatile applications. It describes currently existing methodology with the latest published references, and provides safety information. It serves as the ideal guide for scientists interested in exploring nanobiotechnology.

Smart Nanodevices for Point-of-Care Applications examines the latest trends on the capabilities of nanomaterials for point-of-care (PoC) diagnostics and explains how these materials can help to strengthen, miniaturize, and improve the quality of diagnostic devices. A thorough explanation of all-in-one nanosmart devices is included, incorporating all of the applications and fundamentals of these smart devices. This book provides practical information on the following: novel and effective smart materials, better-quality health management, effective management of a disease, potential point-of-care devices, and mobile nanosensors. Additional Features Includes in-depth research based collation of the latest trends of smart devices Provides practical information on all-in-one nanosmart devices Explains how nanomaterials can help to strengthen and improve the quality of diagnostic devices Emphasizes the development of smart nanodevices, especially the miniaturization aspect

Nanotechnology is the application of science to control matter at the molecular level. It has become one of the most promising applied technologies in all areas of science. Nanoparticles have multi-functional properties and have created very interesting applications in various fields such as medicine, nutrition, bioenergy, agriculture and the environment. But the biogenic syntheses of monodispersed nanoparticles with specific sizes and shapes have been a challenge in biomaterial science. Nanoparticles are of great interest due to their extremely small size and large surface-to-volume ratio, which lead to both chemical and physical differences in their properties (e.g., mechanical properties, biological and sterical properties, catalytic activity, thermal and electrical conductivity, optical absorption and melting point) compared to bulk of the same chemical composition. Recently, however, synthesizing metal nanoparticles using green technology via microorganisms, plants, viruses, and so on, has been extensively studied and has become recognized as a green and efficient way for further exploiting biological systems as convenient nanofactories. Thus the biological synthesis of nanoparticles is increasingly regarded as a rapid, ecofriendly, and easily scaled-up technology. Today researchers are developing new techniques and materials using nanotechnology that may be suitable for plants to boost their native functions. Recently, biological nanoparticles were found to be more pharmacologically active than physico-chemically synthesized nanoparticles. Various applications of biosynthesized nanoparticles have been discovered, especially in the field of biomedical research, such as applications to specific delivery of drugs, use for tumor detection, angiogenesis, genetic disease and genetic disorder diagnosis, photoimaging, and photothermal therapy. Further, iron oxide nanoparticles have been applied to cancer therapy, hyperthermia, drug delivery, tissue repair, cell labeling, targeting and immunoassays, detoxification of biological fluids, magnetic resonance imaging, and magnetically responsive drug delivery therapy. Nanoparticle synthesis for plant byproducts for biomedical applications has vast potential. This book offers researchers in plant science and biomedicine the latest research and opportunity to develop new tools for the synthesis of environmentally friendly and cost-effective nanoparticles for applications in biomedicine as well as other various fields.