Harnessing Nanotechnology for Sustainable Development

For the development and application of technology to be successful, it needs to be designed in consonance with the needs of the target group and to be suited to the socio-economic context. Nanoscale science and its deriving technologies can virtually enhance the lives of nearly every human being, be he rich or poor, because of its pervasive benefits and its suitability in resource-limited settings (Ref. 16). It has the potential to provide the most innovative tools and strategies for fighting...

Influence of Electrostatic Interactions in the Binding of Proteins with Nanoparticles

It has been suggested that each gold nanoparticle has an Au (0) core and an Au (I) surface, as a result of the preferential adsorption of Au (I) ion on the surface at the time of formation of the nanoparticle. Citrate ions co-ordinate to the Au (I) atoms on the surface, resulting in an overall negative charge for each particle. Nanoparticles are capable of binding with oppositely charged species in aqueous solutions through electrostatic interactions based on the ionic characteristics of their...

Some Unusual Properties

In this section, are briefly summarized some of the fascinating discoveries in this area. C60 shows anomalous solubility behavior. Normal solutes show a linear temperature dependence of solubility. In most cases, the solubility increases upon warming. In inorganic systems, unusual phenomena are seen due to solute-solvent interactions. Studies of solubility of C60, studied in a number of solvents, indicate that there is a solubility maximum at near room temperature Ref. 118 280 K , dissolution...

Synthesis and Purification of Fullerenes

For a synthesis of fullerenes, all that is needed is a welding transformer, a chamber connected to a vacuum pump even a single stage oil sealed rotary pump is adequate and some graphite rods. The graphite electrodes are brought into close contact with each other and an arc is struck in an atmosphere of 100 200 Torr of helium or argon. To sustain the arc, a voltage of 20 V ac or dc may be necessary. For a graphite rod of 6 mm in diameter, about 50 200 A current may be consumed. Generally,...

Nanotechnology in Diagnostic Applications

Research efforts are also being driven in the direction of using nanotechnology for molecular diagnostic purposes such as biological research, clinical diagnostics, detection of biomolecules and drug discovery. The focus of this section is on understanding the use of nanosystems for clinical diagnostics, especially in the early diagnosis of various forms of cancer. The main drawback of the laboratory tests currently used for the detection of cancer is that they try to identify visible changes...

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Protease inhibitors for patients suffering from HIV Although technologies have come and gone, it is important to assess what they have given us. The industrial age of the 1900s gave us advanced agricultural practices like the use of chemical fertilizers, radio, TV, air conditioning, car, jet planes, modern medicines, fabrics, etc. which can help the rich live like the kings of the past, and also enable paupers to become kings if they have an appropriate understanding of the markets. The...