Nanografi Nanotechnology

Image retrieved from: Silver nanoparticles can be incorporated into products such as photovoltaics, biological and chemical sensors due to its unique optical, electrical and thermal properties. Silver nanoparticles have high electrical conductivity, stability and low sintering temperature so they are used conductive inks, pastes and fillers. Additionally, due to their high novel optical properties, they are preferred as novel material for the molecular diagnostics and photonic devices. Depending on size and shape of the nanoparticles, Silver nanoparticles can absorb and scatter light. Common application area of silver nanoparticles is resulted from their antibacterial natures. Therefore, in many textiles, keyboards, wound dressing and biomedical devices, low level of silver ions can provide a protection against bacteria. To optimize performance of silver nanoparticles applied into a target, their size, shape, surface and aggregation status are important parameters. Dispersed Sil...

Image retrieved from: http://www.ciaindumentaria.com.ar/plataforma/wp-content/uploads/2014/09/nanopic.jpg Recently, nanomaterials are widely preferred from textile manufacturers due to their excellent properties such as high mechanical strength, chemical resistance, water repellence, antibacterial properties etc. Still, a lot of research are carried in this area to improve textile products which already be used. To obtain nano-enhanced textiles, different kinds of processing techniques are needed because existing manufacturing processes are not very suitable. In this case, manufacturing costs, quality control and homogeneity of nanoparticle dispersion through the fabric become problematic issues. Another important issue to be considered for nanoparticle usage is any effects on human health and environment. Although some studies have focused on this issue, still toxicity of nanomaterials in textile product is not fully understood. In fabric composites, conventional, ...

Metallic nanoparticles have attracted scientist for nearly a century and now they are applied into different high technological fields. The huge interest is due to their fascinating and unique properties such as, high surface area to volume ratio which increase their activity in chemical processes and allow for the modification with different chemically functional groups. Others such as magnetic and optical properties which are related to the nano-size of the particles increased the areas where these particles are being applied. Now a days, metallic nanoparticles are used in biotechnology, magnetic separation, targeted drug delivery, and vehicles for gene and drug delivery. They are also used in industry to produced enhanced materials and composites and in the production of high-tech electronic devices. There are various examples that can be shown for the used metallic nanoparticles, their oxides and compounds which show their importance in recent technology. Au (Gold) Nanoparticles...

Photo retrieved from http://www.boliden.com/fi/Press/Press-images/Products/Silver/ Silver  is one of the most popular material in last decade. Silver nanoparticles have been hitting the headlines for a few years now, both as a smart new technology for preventing bacterial infection, and as a potential new health and environmental threat. part from antibacterial properties,there are several application area of silver nanoparticles since silver has remarkable characteristics. Silver nanoparticles  are  nanoparticles  of  silver  of between 1 nm and 100 nm in size.Silver nanoparticles  have unique optical, electrical, and thermal properties  and are being incorporated into products that range from photovoltaics to biological and chemical sensors. The unique properties of silver nanoparticles make them ideal for numerous technologies, including biomedical, materials, optical, and antimicrobial applications, as well as for use in nanotoxicology...

An  antimicrobial  is an agent that kills microorganisms or inhibits their growth. There are several industry depends on antibacterial agents like  textile industry, water disinfection, medicine, and food packaging . Organic compounds used for  disinfection  have some disadvantages such as toxicity to the human body. Therefore, the interest in inorganic disinfectants such as metal oxide nanoparticles (NPs) is increasing. One of the most important inorganic disinfectant nanoparticles is  Silver (Ag).  Silver ions or salts are well known, but the effects of Ag nanoparticles on microorganisms has received considerable attention in the past few years in the field of microbiology and biotechnology. The antimicrobial activity of Ag nanoparticles was investigated against  yeast,  Escherichia coli , and  Staphylococcus aureus . First advantage of Ag is that it is a  bacterial growth inhibitor . Ag nanoparticles inhibit growth of these ...