Recent Patents on Nanotechnology - Volume 3, Issue 1, 2009

Dr. Sergei S. Berdonosov was born in 1939 in Moscow, Russia. As a result of his studies, he got a gold medal at school in 1956 and an excellence diploma at the Moscow State University in 1961. His Ph.D. thesis, defended in 1964, was dedicated to zirconium, hafnium, niobium, tantalum, and protactinium bromides, and a Dr. Sci. thesis (2002) was devoted to the radiochemical studies of desublimation and new approaches to d Read More

Silicon nanowires (SiNWs) have been demonstrated as one of the promising building blocks for future nanodevcies such as field effect transistors, solar cells, sensors and lithium battery; much progress has been made in this field during last decades. In this review paper, the synthesis and physical properties of SiNWs are introduced briefly. Significant advances of SiNWs-related nanodevices reported in recent literature and Read More

Surface-enhanced Raman scattering (SERS) is recognized as one of the most sensitive spectroscopic tools offering highly sensitive chemical and biological detection. The fact that particle plasmon allows direct coupling of light to resonant electron plasmon oscillation has spurred tremendous efforts in the design and fabrication of highly SERSactive substrates in nanostructured films and metallic nanoparticles. Theoretical studi Read More

Electrospinning has been recognized as a feasible process for fabrication of continuous fibers with diameters ranging from several micrometers down to a few nanometers. This article presents an overview of recent progress in functional polymeric nanofibers prepared by electrospinnning. Except of functional nanofibers fabricated from electrospinning of functional polymers, nanofibers from a combined technology such as Read More

Intensive research focuses on the development of nanoparticles, not only for their fundamental scientific interest, but also for a variety of technological applications. Monodisperse nanoparticles with a size variation of less than 5% exceptionally have been received much attention, due to their novel and high performance induced by the strong dependence of properties upon the dimension of the nanoparticles. Their uni Read More

Ferroelectric oxide materials with a perovskite structure have promising applications in electronic devices such as random access memories, sensors, actuators, infrared detectors, and so on. Recent advances in science and technology of ferroelectrics have resulted in the feature sizes of ferroelectric-based electronic devices entering into nanoscale dimensions. At nanoscale perovskite ferroelectric materials exhibit a pron Read More

A review is given about the current state-of-the-art surrounding micro/nano scale welding/joining used in miniaturization or microsystems. Except for reviewing the applications of micro/nano welding/joining in various fields, such as microelectromechanical system (MEMS), micro total-analysis systems (μTAS), carbon nanotubes (CNTs) etc., the optimal equipments for micro/nano welding/joining, its corresponding future applicati Read More

The paper discuses the design of 1-bit full adder circuit using Shannon theorem. This proposed full adder circuit is used as one of the circuit component for implementation of Non- Restoring and Restoring divider circuits. The proposed adder and divider schematics are designed by using DSCH2 CAD tool and their layouts are generated by Microwind 3 VLSI CAD tool. The divider circuits are designed by using standard CMO Read More

Fatigue-free Bi3.2Sm0.8Ti3O12 ferroelectric thin films were prepared on p-Si(100) substrate using a sol-gel deposition process. The formation and orientation of thin films were studied upon annealing conditions with XRD and SEM. Experiment results indicate that after preannealing at 400°C for 10 min, annealing at 700°C resulted in formation of strong a-axis oriented films. The orientation degree, I(200)/I(117), remarkably incre Read More

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