scholarly journals NANOTECHNOLOGY AN EMERGING NEW TECHNOLOGY FOR INDONESIA PART I. NANOTECHNOLOGY IN GENERAL

REAKTOR ◽  
2006 ◽  
Vol 10 (1) ◽  
pp. 46
Author(s):  
Ratnawati Ratnawati ◽  
Anggoro D.D. Anggoro ◽  
G.A. Mansoori G.A. Mansoori
Keyword(s):  
United States ◽  
Surface Science ◽  
Scanning Tunneling Microscope ◽  
Human Life ◽  
New Technology ◽  
The United States ◽  
Scanning Tunneling ◽  
Tunneling Microscope ◽  
Atomic Force ◽  
The World

Nanotechnology is shortly defined as the ability to build micro and macro material and product with atomic precistion. Feynman is considered to be the scientist who put a strong foundation for the development of nanotechnology with his phenomenal speech in 1959 entitled "There's Plenty of Room at the Bottom - An invitation to enter a new field of physics." The invention of scanning tunneling microscope, followed by atomic force microscope, has enabled the world to see atoms and nolecules and opened more possibility for the scientists to develop nanotechnology. Other breakthough in nanotechnology is the discoveries of fullerene, carbon nanotube and diamondoids. Nanotechnology has found various fields of application, such as in biomedical , materials, aerospace, surface science and energy, to name a few, lead by the united States, Europe, and Japan, The technology brings benefits as well as risks to human life. Some of the risks are potentially global in scope. It is why a single, trustworthy, international administration holding controls on the technologyis is urgently needed.

Scanning probe microscopy: A new technology takes off

1990 ◽  
Vol 48 (3) ◽  
pp. 959-959
Author(s):  
Virgil Elings
Keyword(s):  
Scanning Probe Microscopy ◽  
Scanning Tunneling Microscope ◽  
New Technology ◽  
Near Field ◽  
Three Dimensional ◽  
Scanning Tunneling ◽  
Thin Sample ◽  
Tunneling Microscope ◽  
Atomic Force ◽  
Electron Microscopes

With the expanding use of the scanning tunneling microscope, the technology is developing into other scanning near field microscopes, microscopes whose resolution is determined by the size of the probe, not by some wavelength. The first available “son of STM” will be the atomic force microscope (AFM), a very low force profilometer which has atomic resolution and can profile non-conducting surfaces. The hope is that this microscope may find more applications in biology than the scanning tunneling microscope (STM), which requires a conducting or very thin sample.In the past five years, the STM has progressed from curiosity to everyday lab tool, imaging surfaces with scans from a few nanometers up to 100 microns. When compared to an SEM, the STM has the advantages of higher resolution, lower cost, operation in air or liquid, real three-dimensional output, and small size. The disadvantages are smaller scan size, slower scan speeds, fewer spectroscopic functions and, of course, not as many of the nice features of the more mature electron microscopes. The AFM has similar features to the STM except that the detector and profiling tips are more complicated and more difficult to operate—disadvantages that will decrease with time.

The atomic-force microscope and its future in biology

1993 ◽  
Vol 51 ◽  
pp. 704-705
Author(s):  
Jean-Paul Revel
Keyword(s):  
Silicon Nitride ◽  
Laser Beam ◽  
Atomic Force Microscope ◽  
Scanning Tunneling Microscope ◽  
Point Of View ◽  
Scanning Tunneling ◽  
Close Relative ◽  
Tunneling Microscope ◽  
Atomic Force ◽  
Sharp Point

The last few years have been marked by a series of remarkable developments in microscopy. Perhaps the most amazing of these is the growth of microscopies which use devices where the place of the lens has been taken by probes, which record information about the sample and display it in a spatial from the point of view of the context. From the point of view of the biologist one of the most promising of these microscopies without lenses is the scanned force microscope, aka atomic force microscope.This instrument was invented by Binnig, Quate and Gerber and is a close relative of the scanning tunneling microscope. Today's AFMs consist of a cantilever which bears a sharp point at its end. Often this is a silicon nitride pyramid, but there are many variations, the object of which is to make the tip sharper. A laser beam is directed at the back of the cantilever and is reflected into a split, or quadrant photodiode.

scholarly journals Cosmopolitanism, Translocality, Astronoetics: A Multi-Local Vantage Point

2020 ◽  
Vol 13 (2) ◽  
pp. 29-38
Author(s):  
Gabriela Vargas-Cetina ◽  
Manpreet Kaur Kang
Keyword(s):  
United States ◽  
Sixteenth Century ◽  
New England ◽  
Human Life ◽  
The United States ◽  
Vantage Point ◽  
Special Volume ◽  
Multiple Flows ◽  
The World ◽  
Shed Light

The world in which we live is crisscrossed by multiple flows of people, information, non-human life, travel circuits and goods. At least since the Sixteenth Century, the Americas have received and generated new social, cultural and product trends. As we see through the case studies presented here, modern literature and dance, the industrialization of food and the race to space cannot be historicized without considering the role the Americas, and particularly the United States, have played in all of them. We also see, at the same time, how these flows of thought, art, science and products emerged from sources outside the Americas to then take root in and beyond the United States. The authors in this special volume are devising conceptual tools to analyze this multiplicity across continents and also at the level of particular nations and localities. Concepts such as cosmopolitanism, translocality and astronoetics are brought to shed light on these complex crossings, giving us new ways to look at the intricacy of these distance-crossing flows. India, perhaps surprisingly, emerges as an important cultural interlocutor, beginning with the idealized, imagined versions of Indian spirituality that fueled the romanticism of the New England Transcendentalists, to the importance of Indian dance pioneers in the world stage during the first part of the twentieth century and the current importance of India as a player in the race to space. 

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