Phytofabrication of silver nanoparticles by using aquatic plant Hydrilla verticilata

Sable N, Gaikwad S, Bonde S, Gade A, Rai M. 2012. Phytofabrication of silver nanoparticles by using aquatic plant Hydrilla verticilata. Nusantara Bioscience 4: 45-49. In the context of current drive to developed new green technology in nanomaterials, synthesis of nanoparticles is of considerable importance. There has been considerable work done in the field of nanoscience and nanotechnology during the last decade due to the introduction of various protocols for the synthesis of nanoparticles by using plants and microorganisms. Here we firstly report the extracellular phytosynthesis of silver nanoparticles (Ag-NPs) using aquatic plants Hydrilla verticilata. The characterization of the phytosynthesized Ag-NPs was done with the help of UV-Vis spectroscopy, FTIR, Nanoparticle Tracking Analysis (NTA), Zeta potential and SEM. The SEM micrograph revealed the synthesis of polydispersed spherical nanoparticles, with the average size of 65.55 nm. The phytofabricated Ag-NPs can be used in the field of medicine and agriculture, due to their antimicrobial potential

Internet Of Things Based Nashik Smart City

IoT (Internet of Things) is an advanced automation and analytics system which exploits networking, sensing, big data, and artificial intelligence technology to deliver complete systems for a product or service. These systems allow greater transparency, control, and performance when applied to any industry or system. IoT systems have applications across industries through their unique flexibility and ability to be suitable in any environment. They enhance data collection, automation, operations, and much more through smart devices and powerful enabling technology. IoT is a technical base behind developing smart city and it acts as a building blocks of the same. IoT helps in improving the quality of life of citizens and transforming cities with the help technological solutions

Relevance Feedback Utilizing Secure Evaluation with Content-based Image Retrieval in Cloud Computing

Content-based image retrieval (CBIR) is the integrated system of the photograph fetching trouble for instance difficulty of chasing down pictures on a cloud in big datasets. To recognize request semantics and client’s needs if you want to grant submitted consequences with reference to exactness, relevance feedback is combined into CBIR shape. Important evaluation shape will manufacture the precision of yield and will pass at hugest yield. In the watermark-primarily based tradition, a singular watermark is explicitly inserted in blended photos by means of the cloud environment earlier than photos, transmitted towards inquiry mortal. In this way, when an illicit photograph reproduction is located, the illicit inquiry mortal, where appropriates can trail the pictures with the aid of the watermark extraction. Characteristics vectors get assured by using the secure hashing algorithm, analyzing and making ready age are used at image user’s aspect for confirmation motive. TPA (third party auditor) is used to understand enforcement or malevolent activities achieved in cloud circumstances. In our proposed framework, we are including the approach of misrepresentation recognition by generating trapdoor using a hashing calculation, as a document is made with the unique identifier and the client pictures with the names after the link are simplest, a trapdoor is generated

POWER SYSTEM STABILITY OF MULTI MACHINE BY USING STATIC SYNCHRONOUS SERIES COMPENSATOR (SSSC)

In this paper the problem of modeling and simulation of voltage stability is improved using Static Synchronous Series Compensator (SSSC). Due to the continuous demand in electric power system, the system is heavily loaded, this causes to voltage instability. In this work, a static synchronous series compensator (SSSC) is used to minimize the effect of this device in controlling active and reactive powers as well as damping power system oscillations in transient mode. The PI controller is used to achieve the zero signal error. The result is obtained from simulation using MATLAB. In short when any disturbances occur in transmission line, if SSSC is connected then disturbance in the system is minimized & system will reach the steady state condition very quickl

Design And Development of Compound Die

The work deals with the development of a combined tool for an improvement of a process to be done in three wheeler vehicle product manufacturing plant. Research work deals with the combining two pressing operations done separately. This operation done for vehicle cable transmission part to be manufacturing. In the first pressing blanking operation is done & in second operation a hole is pierced in the same product. The project mainly focuses on different operations done on single setup of die punch in a single stroke, presently these operations are done on three separate setups which leading to reduce the production rate and increasing cycle time with cost as well. Compound die is a press tool of collective operations performed on the sheet metal. The various operations are carried out in a single stroke. The design of compound die is largely depends on material of sheet metal, thickness of sheet metal and complexity of design and operations

Power System Stability Of Multi Machine By Using Static Synchronous Series Compensator (Sssc)

In this paper the problem of modeling and simulation of voltage stability is improved using Static Synchronous Series Compensator (SSSC). Due to the continuous demand in electric power system, the system is heavily loaded, this causes to voltage instability. In this work, a static synchronous series compensator (SSSC) is used to minimize the effect of this device in controlling active and reactive powers as well as damping power system oscillations in transient mode. The PI controller is used to achieve the zero signal error. The result is obtained from simulation using MATLAB. In short when any disturbances occur in transmission line, if SSSC is connected then disturbance in the system is minimized & system will reach the steady state condition very quickl

Lawsonia Inermis-mediated Synthesis Of Silver Nanoparticles: Activity Against Human Pathogenic Fungi And Bacteria With Special Reference To Formulation Of An Antimicrobial Nanogel.

Lawsonia inermis mediated synthesis of silver nanoparticles (Ag-NPs) and its efficacy against Candida albicans, Microsporum canis, Propioniabacterium acne and Trichophyton mentagrophytes is reported. A two-step mechanism has been proposed for bioreduction and formation of an intermediate complex leading to the synthesis of capped nanoparticles was developed. In addition, antimicrobial gel for M. canis and T. mentagrophytes was also formulated. Ag-NPs were synthesized by challenging the leaft extract of L. inermis with 1 mM AgNO₃. The Ag-NPs were characterized by Ultraviolet-Visible (UV-Vis) spectrophotometer and Fourier transform infrared spectroscopy (FTIR). Transmission electron microscopy (TEM), nanoparticle tracking and analysis sytem (NTA) and zeta potential was measured to detect the size of Ag-NPs. The antimicrobial activity of Ag-NPs was evaluated by disc diffusion method against the test organisms. Thus these Ag-NPs may prove as a better candidate drug due to their biogenic nature. Moreover, Ag-NPs may be an answer to the drug-resistant microorganisms.8172-

Design and Development of Compound Die

The work deals with the development of a combined tool for an improvement of a process to be done in three wheeler vehicle product manufacturing plant. Research work deals with the combining two pressing operations done separately. This operation done for vehicle cable transmission part to be manufacturing. In the first pressing blanking operation is done & in second operation a hole is pierced in the same product. The project mainly focuses on different operations done on single setup of die punch in a single stroke, presently these operations are done on three separate setups which leading to reduce the production rate and increasing cycle time with cost as well. Compound die is a press tool of collective operations performed on the sheet metal. The various operations are carried out in a single stroke. The design of compound die is largely depends on material of sheet metal, thickness of sheet metal and complexity of design and operations

Industrial Applications of Nanomaterials Produced from <em>Aspergillus</em> Species

There is a great demand for green methods of synthesis of nanoparticles. Fungi play an important role in the synthesis of nanoparticles, of which Aspergillus spp. are known to secrete different enzymes responsible for the synthesis of nanoparticles. The process of biosynthesis of nanoparticles is simple, rapid, cost-effective, eco-friendly, and easy to synthesize at ambient temperature and pressure. Mostly, the metal nanoparticles such as silver, gold, lead and the oxides of titanium, zinc, and copper are synthesized from Aspergillus spp. These include mainly Aspergillus fumigatus, A. flavus, A. niger, A. terreus, and A. clavatus. The fabrication of different nanoparticles is extracellular. In the present chapter, we have discussed the role of different species of Aspergillus, mechanism of biogenic synthesis particularly enzymes involved in the reduction of metal ions into nanoparticles. The biogenically synthesized nanoparticles have demonstrated several biomedicals, agricultural, and engineering applications. The biogenic nanoparticles are mostly used as antimicrobial and cytotoxic agents. Their use as fungicidal agents is important for sustainable agriculture

Fusarium as a Novel Fungus for the Synthesis of Nanoparticles: Mechanism and Applications

Nanotechnology is a new and developing branch that has revolutionized the world by its applications in various fields including medicine and agriculture. In nanotechnology, nanoparticles play an important role in diagnostics, drug delivery, and therapy. The synthesis of nanoparticles by fungi is a novel, cost-effective and eco-friendly approach. Among fungi, Fusarium spp. play an important role in the synthesis of nanoparticles and can be considered as a nanofactory for the fabrication of nanoparticles. The synthesis of silver nanoparticles (AgNPs) from Fusarium, its mechanism and applications are discussed in this review. The synthesis of nanoparticles from Fusarium is the biogenic and green approach. Fusaria are found to be a versatile biological system with the ability to synthesize nanoparticles extracellularly. Different species of Fusaria have the potential to synthesise nanoparticles. Among these, F. oxysporum has demonstrated a high potential for the synthesis of AgNPs. It is hypothesised that NADH-dependent nitrate reductase enzyme secreted by F. oxysporum is responsible for the reduction of aqueous silver ions into AgNPs. The toxicity of nanoparticles depends upon the shape, size, surface charge, and the concentration used. The nanoparticles synthesised by different species of Fusaria can be used in medicine and agriculture