نتایج جستجو برای: nano scale manipulation

تعداد نتایج: 680225  

2017
Lorenzo Rosa Jonathan Blackledge Albert Boretti

This paper reviews some of the major and most recent advances in nanoscale-magnetic resonance imaging (nano-MRI) for personalized medicine (PM). Nano-MRI may drastically expand the capabilities of the traditional magnetic resonance images (MRI), down to the nanometer scale and possibly, in the near future, at the atomic scale. Nano-MRI is potentially able to observe structures which cannot be s...

2007
Sandeep Unnikrishnan Henri Jansen Erwin Berenschot Miko Elwenspoek

⎯ A new micromachining method to fabricate wafer scale, atomically smooth nano-membranes is described. The delicate membrane is supported on a robust silicon microsieve fabricated by plasma etching. The supporting sieve is micromachined independently of the nano-membrane, which is later fusion bonded to it. The transferred thin-film membrane can be dense, porous or perforated according to the a...

2010
Juan López-de-Uralde Iraide Ruiz Igor Santos Agustín Zubillaga Pablo García Bringas Ana Okariz Teresa Guraya

Nano-technology is the study of matter behaviour on atomic and molecular scale (i.e. nano-scale). In particular, carbon black is a nano-material generally used for the reinforcement of rubber compounds. Nevertheless, the exact reason behind its success in this concrete domain remains unknown. Characterisation of rubber nano-aggregates aims to answer this question. The morphology of the nano-agg...

2002
R. W. Stark W. M. Heckl

Modern applications in biological research require high-resolution methods allowing the manipulation of biological samples with a precision beyond the resolution limit of light microscopy. For this purpose the atomicforce microscope (AFM) is an appropriate tool. Promising laser-surgery methods for biomedical applications have been developed employing infrared or near-infrared lasers. However, s...

A. H. Korayem M. H. Korayem M. Taheri Z. Rastegar

Nanotechnology involves the ability to see and control individual atoms and molecules which are about 100 nanometer or smaller. One of the major tools used in this field is atomic force microscopy which uses a wealth of techniques to measure the topography and investigates the surface forces in nanoscale. Friction force is the representation of the surface interaction between two surfaces an...

2008
Michael Ioelovich

Cellulose has a complex, multi-level supermolecular architecture. This natural polymer is built from superfine fibrils having diameters in the nano scale, and each such nanofibril contains ordered nanocrystallites and low-ordered nano-domains. In this review, the nano-structure of cellulose and its influence on various properties of the polymer is discussed. In particular, the ability of nano-s...

H. Khaksar M. H. Korayem M. Taheri

The effect of geometry and material of the Micro/Nano particle on contact mechanic for manipulation was studied in this work based on atomic force microscopy. Hertz contact model simulation for EpH biological micro particle with spherical, cylindrical, and circular crowned roller shape was used to investigate the effect of geometry on contact simulation process in manipulation. Then, to val...

2015
Zhiwen Kang Jiajie Chen Shu-Yuen Wu Kun Chen Siu-Kai Kong Ken-Tye Yong Ho-Pui Ho

We experimentally demonstrated the use of random plasmonic nano-islands for optical trapping and assembling of particles and live cells into highly organized pattern with low power density. The observed trapping effect is attributed to the net contribution due to near-field optical trapping force and long-range thermophoretic force, which overcomes the axial convective drag force, while the lat...

2015
Yuhang Wang Kehan Zhao Xiaolan Shi Geng Li Guanlin Xie Xubo Lai Jun Ni Liuwan Zhang

The fabrication and control of the conductive surface and interface on insulating SrTiO3 bulk provide a pathway for oxide electronics. The controllable manipulation of local doping concentration in semiconductors is an important step for nano-electronics. Here we show that conductive patterns can be written on bare SrTiO3 surface by controllable doping in nanoscale using the mechanical interact...

2017
Guido Tosello

Microand nano-scale manufacturing has been the subject of an increasing amount of interest and research effort worldwide in both academia and industry over the past 10 years. Traditional lithography-based technology forms the basis of silicon-based micro-electro-mechanical systems (MEMS) manufacturing, but also precision manufacturing technologies have been developed to cover micro-scale dimens...

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