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What is the feasibility of nanotechnology? What are the drawbacks of using the same?

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1)where do you think nanotechnology stands today??

2)do you think it is harmful??

3)have you experimented with a product which contains nanoparticles?

4)what is your view on nanotechnology?

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1)Doctors

2)Pharmacists

3)Farmers

4)Scientists

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1

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terms I came across

1)AFM- a high-resolution type of scanning probe microscope with a demonstrated resolution of fractions of a nanometer

2)buckyball-Buckminsterfullerene C60, also known as the “buckyball,” is the simplest of the carbon structures known as fullerenes.

3)electron beam lithography- itis the practice of using a beam of electrons to generate patterns on a surface.

4)molecular manufacturing-the process of building complex machines with atomic precision

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what are the unique properties of nanomaterials?

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http://www2.epa.gov/chemical-research/research-evaluating-nanomaterials-chemical-safety

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Due to the rapid and diverse growth of engineered nanomaterials, it is a challenge for regulators and risk assessors to understand the potential for exposure and whether methods used for assessing conventional chemicals can be used for nanomaterials. EPA researchers are identifying and characterizing the unique chemical and physical features of nanomaterials, such as

size,

shape,

chemical composition,

stability, etc.

This allows the researchers to develop predictive models to determine which nanomaterials may pose a higher probability of risk and those expected to have little impact.

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Due to the rapid and diverse growth of engineered nanomaterials, it is a challenge for regulators and risk assessors to understand the potential for exposure and whether methods used for assessing conventional chemicals can be used for nanomaterials. EPA researchers are identifying and characterizing the unique chemical and physical features of nanomaterials, such as

size,

shape,

chemical composition,

stability, etc.

This allows the researchers to develop predictive models to determine which nanomaterials may pose a higher probability of risk and those expected to have little impact.

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what are the unique characteristics of nanomaterials

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End of famine and starvation

Superior education for every child on Earth

Reintroduction of many extinct plants and animals

Terraforming Earth and the Solar System

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Nearly free consumer products

PC's billions of times faster then today

Safe and affordable space travel

Virtual end to illness, aging, death

No more pollution and automatic cleanup of existing pollution .

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what will nanotechnology bring us in the future?

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Nanomaterials are used in food packaging, textiles, kitchen devices, varnishes and paints. They are also used in products for surface sealing and cleaning as well as in polishing agents. Nanomaterials are also used in cosmetics. Titanium dioxide and zinc oxide are used as UV filters in sun creams, for example; nanosilver is used as an antimicrobial agent in textiles and nanoclay has various applications in the food packaging sector.

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In which products are nanomaterials already being used?

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Nanotechnology is a generic term for the development of innovative materials and applications in various natural science and technical disciplines such as physics, chemistry, biology and medicine, as well as engineering and material sciences. It deals with materials with at least one dimension smaller than 100 nanometres (nm), so called nanomaterials

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What is nanotechnology considered to be?

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Nanotechnology offers great potential for benefit to humankind, and also brings severe dangers. While it is appropriate to examine carefully the risks and possible toxicity of nanoparticles and other products of nanoscale technology, the greatest hazards are posed by malicious or unwise use of molecular manufacturing.

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Do you think nanotechnology is dangerous or benign?

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Nanotechnology in computers provides the need for faster running computer processes at cooler temperatures than traditional,transistor-based computer components. In traditional computing, transistors have used silicon components as an affordable and easily manufactured method to provide smaller and faster computers and electronic gadgets, such as netbooks, smartphones and personal assistant devices. Such powerful gadgets at so small a size produce too much heat, however, reducing the effectiveness, performance and longevity of the silicon components. Nanotechnology in computing solves the heat dilemma by providing improved processor power at cooler temperatures and lighter weights.

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What is the role of nanotechnology in computers?

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http://iopscience.iop.org/article/10.1088/0957-4484/26/6/062002/pdf

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www.eurekalert.org/features/doe/2001-07/dnl-flc060602.php
www.wisegeek.com/what-is-the-role-of-nanotechnology-in-computers.htm

www.nanotech-now.com › Introduction

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http://onlinelibrary.wiley.com/doi/10.1002/9783527673919.oth1/pdf

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http://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=web&cd=8&ved=0CEAQFjAHahUKEwiA1f2jlZrIAhUOCI4KHSa_CIE&url=http%3A%2F%2Fwww.glacierjournal.org%2Fupload%2Fpapers%2F1440247081-nanotechnology.doc&usg=AFQjCNEzIvpZdl6sZIeDt6zDvSpI-UQ6_w

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Karthik the answer is

When particle sizes of solid matter in the visible scale are compared to what can be seen in a regular optical microscope, there is little difference in the properties of the particles. But when particles are created with dimensions of about 1–100 nanometers (where the particles can be “seen” only with powerful specialized microscopes), the materials’ properties change significantly from those at larger scales. This is the size scale where so-called quantum effects rule the behavior and properties of particles. Properties of materials are size-dependent in this scale range. Thus, when particle size is made to be nanoscale, properties such as melting point, fluorescence, electrical conductivity, magnetic permeability, and chemical reactivity change as a function of the size of the particle.

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KARTHIK- Can nanomaterials made by nanotechnology overrule the traditional counterpart? 

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KARTHIK- Can nanomaterials made by nanotechnology overrule the traditional counterpart? 

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www.nano.gov › what › definition

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Matter such as gases, liquids, and solids can exhibit unusual
physical, chemical, and biological properties at the nanoscale, differing in
important ways from the properties of bulk materials and single atoms or
molecules. Some nanostructured materials are stronger or have different
magnetic properties compared to other forms or sizes or the same material.
Others are better at conducting heat or electricity. They may become more
chemically reactive or reflect light better or change colour as their size or
structure is altered.

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https://www.beilstein-journals.org/bjnano/home/home.htm

https://www.dcccd.edu/CD/DCC/Mech/Nanotech/more/Pages/terms.aspx

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http://www.inderscience.com/jhome.php?jcode=ijnt

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How can nanotechnology be used effectively in common life

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Nanotechnology Enabled Water Treatment Systems

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Free Energy & The Future Of Nanotechnology

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NEWT Center will use nanotechnology to transform water treatment

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Nanotechnology Enabled Water Treatment Systems, or NEWT, is a Houston-based U.S. national research center that is developing compact, mobile, off-grid water-treatment systems that can provide clean water to millions of people who lack it and make U.S. energy production more sustainable and cost-effective. NEWT is an Engineering Research Center funded by the National Science Foundation (NSF).

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the branch of technology that deals with dimensions and tolerances of less than 100 nanometers, especially the manipulation of individual atoms and molecules.

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http://iopscience.iop.org/0957-4484

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http://www.omicsonline.org/admin/flyer-pdfs/Journal-of-Nanomedicine--Nanotechnology-flyer.pdf

KARTHIK NATARAJAN

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TEDxEastHampton - Matthew Putman on Nanotechnology

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Matthew Putman is a musician, scientist, producer and author currently living in Brooklyn, NY with his wife Marine and two children. He is a Researcher at Columbia University, and the founder and CEO of the company Nanotronics Imaging.

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Redefining nanotechnology | Ted Sargent | TEDxToronto

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Ted Sargent, Professor and Canada Research Chair in Nanotechnology at the University of Toronto, delivers a Talk at TEDxToronto 2011 on the theme of Redefining Nanotechnology. tedxtoronto.com In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience.

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History of nanotechnology

Nanotechnology, one of the most extensive research-based
topic is the manipulation of matter, on an Atomic, molecular and subatomic
scale. As defined by size, it is naturally very broad including fields of
science so diverse such as surface science, organic chemistry, molecular
biology, semiconductor, microfabrication etc.

The timeline in Nanotechnology is as follows-

1857: Michael Faraday discovered colloidal “ruby” gold,
demonstrating that nanostructured gold under certain lighting conditions
produces different-coloured solutions

1936: Erwin Müller, working at Siemens Research Laboratory,
invented the field emission microscope, allowing near-atomic-resolution images
of materials.

1947: John Bardeen, William Shockley, and Walter Brattain at
Bell Labs discovered the semiconductor transistor and greatly expanded
scientific knowledge of semiconductor interfaces, laying the foundation for
electronic devices and the Information Age.

1950: Victor La Mer and Robert Dinegar developed the theory
and a process for growing monodisperse colloidal materials. Controlled ability
to fabricate colloids enables myriad industrial uses such as specialized
papers, paints, and thin films, even dialysis treatments.

1951: Erwin Müller pioneered the field ion microscope, a
means to image the arrangement of atoms at the surface of a sharp metal tip; he
first imaged tungsten atoms.

1956: Arthur von Hippel at MIT introduced many concepts
of—and coined the term—“molecular engineering” as applied to dielectrics,
ferroelectrics, and piezoelectrics

1958: Jack Kilby of Texas Instruments originated the concept
of, designed, and built the first integrated circuit, for which he received the
Nobel Prize in 2000.

1965: Intel co-founder Gordon Moore described in Electronics
magazine several trends he foresaw in the field of electronics. One trend now
known as “Moore’s Law,” described the density of transistors on an integrated
chip (IC) doubling every 12 months (later amended to every 2 years). Moore also
saw chip sizes and costs shrinking with their growing functionality—with a
transformational effect on the ways people live and work. That the basic trend
Moore envisioned has continued for 50 years is to a large extent due to the
semiconductor industry’s increasing reliance on nanotechnology as ICs and
transistors have approached atomic dimensions.

1985:  Rice University
researchers Harold Kroto, Sean O’Brien, Robert Curl, and Richard Smalley
discovered the Buckminsterfullerene (C60), more commonly known as the Bucky
ball, which is a molecule resembling a soccerball in shape and composed
entirely of carbon, as are graphite and diamond. The team was awarded the 1996
Nobel Prize in Chemistry for their roles in this discovery and that of the
fullerene class of molecules more generally.

1998:  The Interagency
Working Group on Nanotechnology (IWGN) was formed under the National Science
and Technology Council to investigate the state of the art in nanoscale science
and technology and to forecast possible future developments. The IWGN’s study
and report, Nanotechnology Research Directions: Vision for the Next Decade
(1999) defined the vision for and led directly to formation of the U.S.
National Nanotechnology Initiative in 2000.

2010: IBM used a silicon tip measuring only a few nanometers
at its apex (similar to the tips used in atomic force microscopes) to chisel
away material from a substrate to create a complete nanoscale 3D relief map of
the world one-one-thousandth the size of a grain of salt—in 2 minutes and 23
seconds. This activity demonstrated a powerful patterning methodology for
generating nanoscale patterns and structures as small as 15 nanometers at
greatly reduced cost and complexity, opening up new prospects for fields such
as electronics, optoelectronics, and medicine.