nanotechnology is a branch of nanotechnology which applies
principles in this field to health care issues.
Nanotechnology is a broad spectrum of scientific endeavors
which involves manufacturing and machining which take place
on a molecular scale. There are a number of potential
applications for medical nanotechnology, and in its early
phases, many people were quite excited about the huge
changes which could occur in the medical world with the
assistance of medical technology
Nanotechnology is not just
about the size of very small things, it is the revolutionary science
and art of manipulating matter at the atomic or molecular scale.
Moreover , it is about the structure and the ability of molecules
to act . Research in needed to develop manufacturing techniques .
When matter is as small as 1
to 100 nanometers, many of its features can be easily change and
have many unique feature both different from macro-matters and
single atoms due to the quanta effect. the final objective of
nanometer technology is to reach products of special functions with
new physical and chemical features by making atoms, molecules behave
differently, for example :the strength of ten times of iron could be
Medical nanotechnology also makes cell repair
on a molecular level possible, and provides a number of
opportunities for medication administration. Drugs developed through
nanotechnology could directly penetrate cells, for example, or
nanoparticles could be designed to target cancer cells, delivering
medication or providing a focal point for radiation. Medical
nanotechnology can also be used to make biosensors which can be
implanted into patients for monitoring, along with medical devices
which are designed to be permanently implanted such as pacemakers.
dioxide's Photo catalytic characteristics are greatly enhanced due
to the advent of nanotechnology
. Micro-organisms are a risk factor in many areas of life . They
harm health and can disrupt work as in medical fields & food
industrial process , which costs time and money. Fast and reliable
disinfection and sterilizationis a pre requisite to decrease the infection
risk . Efficacy is not a must to be of high cost reduction and good
compliance with legal threshold and good compliance with legal
nanotechnology operates on such a small scale, it offers the
opportunity to create precisely targeted surgical
instruments, drug delivery systems, and implants. Nanobots,
for example, could be used to perform a non-invasive medical
imaging study inside the body, or to perform surgical
procedures. Nanomaterials can also be implanted into the
body; for example, someone with a badly damaged bone or
joint could be treated with nanoparticles which would
promote new growth, regrowing the damaged tissue.
Manufactured products are made from
atoms. The properties of those products depend on how those
atoms are arranged. If we rearrange the atoms in coal we can
make diamond. If we rearrange the atoms in sand (and add a
few other trace elements) we can make computer chips. If we
rearrange the atoms in dirt, water and air we can make
Todays manufacturing methods are very crude at the molecular
level. Casting, grinding, milling and even lithography move
atoms in great thundering statistical herds. It's like
trying to make things out of LEGO blocks with boxing gloves
on your hands. Yes, you can push the LEGO blocks into great
heaps and pile them up, but you can't really snap them
together the way you'd like.
In the future, nanotechnology will let us take off the
boxing gloves. We'll be able to snap together the
fundamental building blocks of nature easily, inexpensively
and in most of the ways permitted by the laws of physics.
This will be essential if we are to continue the revolution
in computer hardware beyond about the next decade, and will
also let us fabricate an entire new generation of products
that are cleaner, stronger, lighter, and more precise.
It's worth pointing out that the word "nanotechnology" has
become very popular and is used to describe many types of
research where the characteristic dimensions are less than
about 1,000 nanometers. For example, continued improvements
in lithography have resulted in line widths that are less
than one micron: this work is often called "nanotechnology."
Sub-micron lithography is clearly very valuable (ask anyone
who uses a computer!) but it is equally clear that
conventional lithography will not let us build semiconductor
devices in which individual dopant atoms are located at
specific lattice sites. Many of the exponentially improving
trends in computer hardware capability have remained steady
for the last 50 years. There is fairly widespread belief
that these trends are likely to continue for at least
another several years, but then conventional lithography
starts to reach its limits.
If we are to continue these trends we will have to develop a
new manufacturing technology which will let us inexpensively
build computer systems with mole quantities of logic
elements that are molecular in both size and precision and
are interconnected in complex and highly idiosyncratic
patterns. Nanotechnology will let us do this.
Nanotechnology is playing an
increasingly major role in the healthcare industry. Examples
include the use of nano-particles in cancer therapy and
targeted drug delivery systems. Nanotechnology is also
widely issued in tissue engineering applications.
This special issue is expected to provide a comprehensive
overview of research and implementation issues of
nanotechnologies in the medical field and is targeted for an
audience of both researchers as well as practitioners. It
will highlight key issues relating to medical, diagnostic
and surgical applications of nanotechnology.
The papers are expected to discuss the current status and
future prospects so that researchers can formulate new
research topics related to nanotechnology. Practitioners and
business personnel should be able to use the articles
published in this special issue to gain foresight on the
implementation of nanotechnology.