Green Synthesis of Magnetic Nanoparticles and Their Biological application.pptx

The document discusses magnetic nanoparticles (MNPs), which are nanoparticles that can be manipulated using magnetic fields. It describes various types of MNPs including ferrites, ferrites with a shell, metallic nanoparticles, and metallic nanoparticles with a shell. Common synthesis methods are also summarized, such as co-precipitation, microemulsion, thermal decomposition, and hydrothermal synthesis. Finally, potential applications of MNPs in biomedical imaging, cancer therapy, drug delivery, and other areas are highlighted.

This document summarizes a student project on the green synthesis of nanoparticles. It discusses various methods for synthesizing nanoparticles, emphasizing that green synthesis is more eco-friendly than physical or chemical methods as it does not require high temperatures, pressures, or toxic chemicals. The document then describes how plant extracts can be used to synthesize nanoparticles and the characterization techniques used to analyze the particles produced, including UV-vis spectroscopy, DLS, SEM, TEM and FTIR. It concludes by noting some applications of green-synthesized nanoparticles in fields such as medicine, environment and engineering.

The next years will prove the importance of greensynthesis methods for MNPs and MONPs production because they are not only easy to execute, fast, and cheap but also less toxic and environmentally ecofriendly. Nanoparticle synthesis using microorganisms and plants by green synthesis technology is biologically safe, cost-effective, and environment-friendly. Plants and microorganisms have established the power to devour and accumulate inorganic metal ions from their neighboring niche. The biological entities are known to synthesize nanoparticles bothextra and intracellularly. The capability of a living system to utilize its intrinsic organic chemistry processes in remodeling inorganic metal ions into nanoparticles has opened up an undiscovered area of biochemical analysis. Metal nanoparticles (MNPs) and metal oxidenanoparticles (MONPs) are used in numerous fields. The new nano-based entities are being strongly generated and incorporated into everyday personal care products, cosmetics, medicines, drug delivery, and clothing toimpact industrial and manufacturing sectors, which means that nanomaterials commercialization and nanoassisted device will continuously grow. They can be prepared by many methods such as green synthesis and the conventional chemical synthesis methods. The green synthesis of nanoparticles (NPs) using living cells is a promising and novelty tool in bionanotechnology. Chemical and physical methods are used to synthesize NPs; however, biological methods are preferred due to its eco-friendly, clean, safe, cost effective, easy, and effective sources for high productivity and purity. Greensynthesis includes infinite accession to produce MNPs and MONPs with demanding properties. The structure–function relationships between nanomaterials and key information for life cycle evaluation lead to the production of high execution nanoscale materials that are gentle and environmentally friendly. Majority of plants have features as sustainable and renewable suppliers compared with microbes and enzymes, as they have the ability to pick up almost 75% of the light energy and transform it into chemical energy, contain chemicals like antioxidants and sugars, and play fundamental roles in the manufacture of nanoparticles. Plants considered the main factory for the green synthesis of MNPs and MONPs, and until now, different plant species have been used to study this, but the determined conditions should be taken into consideration to execute this preparation.

This document discusses magnetic nanoparticles (MNPs) and their potential applications in anti-infective therapy. It describes several methods for synthesizing MNPs, including co-precipitation, microemulsion, thermal decomposition, hydro/solvothermal, chemical vapor deposition, and sol-gel. Common types of MNPs are ferrites, ferrites with shells, metallic nanoparticles with shells, and polymeric nanocomposites. Applications discussed include magnetic resonance imaging, drug delivery, biomedical uses, data storage, catalysis, separation techniques, solar cells, cell/gene therapy, and hyperthermia for cancer treatment.

Magnetic nano- and microparticles have been successfully used in many areas of algae biotechnology, especially for harvesting of algal biomass, separation of algal biologically active compounds, immobilization of algal cells, removal of important xenobiotics using magnetically modified algae.

This document discusses the green synthesis of nanoparticles using fruit peel for water purification. It begins with definitions of nanoparticles and green chemistry. It then describes different approaches to nanoparticle synthesis and explains why green synthesis is preferable to physical and chemical methods. The document reviews literature on nanoparticle synthesis using various fruit peels. It explains the mechanism of plant extract mediated nanoparticle synthesis and describes the preparation of peel extracts. Finally, it discusses applications of nanoparticles in water purification, factors affecting nanoparticle synthesis, and advantages of the green synthesis approach.

The document discusses the green synthesis of cerium oxide nanoparticles using turmeric powder. Cerium oxide nanoparticles were synthesized by adding cerium nitrate to an extract of turmeric powder boiled in water. The obtained nanoparticles were characterized through techniques such as XRD, PSA, SEM, TEM, and TG/DTA to determine properties like average crystallite size, particle size, morphology, structure and thermal stability. Key applications of cerium oxide nanoparticles include use in fuel cells, removing pollutants from diesel emissions, and glass polishing.

ZnO nanoparticles were synthesized using a combustion method with low-temperature solution combustion. XRD and SEM characterization confirmed the formation of hexagonal wurtzite ZnO nanoparticles around 30-40nm in size. The antibacterial activity of the ZnO nanoparticles was tested against E. coli using colony counting and disk diffusion methods. Both methods showed the ZnO nanoparticles had antibacterial effects in a concentration-dependent manner, with 100μg/L ZnO demonstrating the strongest antibacterial activity through over 70% bacterial reduction and the largest inhibition zone of 24mm. The ZnO nanoparticles were also found to damage the genomic DNA of treated E. coli cells.

Nanoparticles show potential for applications in plant pathology including detection and control of plant diseases. Zinc nanoparticles synthesized using Pseudomonas fluorescens were effective against Xanthomonas spp. that cause diseases in various crops. Smaller sulfur nanoparticles showed greater inhibition of the fungal pathogen Fusarium solani compared to larger nanoparticles. Silver-chitosan nanoparticles reduced gray mold disease in strawberries caused by Botrytis cinerea. Magnesium oxide nanoparticles induced systemic resistance in tomatoes against Ralstonia solanacearum and reduced bacterial wilt disease progression. Nanoparticles have potential for developing smart delivery systems to monitor and treat plant diseases.

Nano particle research

This document discusses green synthesis of nanoparticles using biological methods. It describes how nanoparticles can be synthesized using plant extracts, agricultural waste, microorganisms and enzymes in an environmentally friendly way. This is advantageous over chemical and physical methods as it is cost-effective, produces non-toxic nanoparticles and does not require high temperature or pressure. Specific examples discussed include using bacteria to synthesize silver nanoparticles and controlling factors like pH and temperature to regulate nanoparticle size and shape during microbial synthesis. Overall, the document presents biological methods as a green alternative for nanoparticle production.

The document discusses biodegradable nanoparticles for drug delivery. Nanotechnology allows therapeutic agents to be delivered in biocompatible nanoparticles, nanocapsules, micellar systems, and conjugates. This enables targeted delivery of drugs to improve effects and stability. Polymer properties can be tailored to control drug release and provide optimal targeting. Nanoparticles use bio-specific ligands to direct them to target tissues. The review will focus on intracellular uptake, trafficking, and mechanisms of enhanced therapeutic efficacy of nanoparticle-encapsulated drugs.

This document discusses nanotechnology and its applications in plant pathology. It begins by defining nanotechnology as designing, producing and applying structures between 1-100 nm by controlling shape and size at the nanoscale. It then discusses various methods of synthesizing nanoparticles, including chemical, physical and biological methods. The document outlines several applications of nanoparticles in plant pathology, including for detecting plant diseases using nanoparticle-based sensors. It also discusses how nanoparticles like silver, chitosan, copper and silica can be used for managing plant diseases through their antifungal and antimicrobial properties. Several case studies on using nanoparticles like nanosilver and chitosan nanoparticles to inhibit fungal pathogens are also presented.

The document discusses nanocatalysts and their applications in chemical industry. It begins with definitions of catalyst and nanocatalyst. It then discusses different types of nanocatalysts including homogeneous nanocatalysts which are soluble in solvents and heterogeneous nanocatalysts which are insoluble. Methods for preparing both homogeneous and heterogeneous nanocatalysts are described. The document outlines several industrial applications of nanocatalysts such as in biodiesel production, water purification, drug delivery, and fuel cells. It concludes that nanocatalysts have advantages over traditional catalysts like high activity, selectivity, stability, and ease of separation.

This document discusses various biological methods for synthesizing nanoparticles, including using bacteria, fungi, yeast, plants, and waste materials. It describes how nanoparticles can be synthesized intracellularly or extracellularly by bacteria. Specific bacteria used to synthesize silver, gold, iron and other nanoparticles are mentioned. The document also discusses nanoparticle synthesis using fungi, yeasts, plant extracts, and industrial waste. It concludes by noting the promising potential but current limitations of biological nanoparticle synthesis for medical applications.