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23-09-2008, 01:20 AM


Nanorobotics is an emerging field that deals with the controlled manipulation of objects with nanometer-scale dimensions. Typically, an atom has a diameter of a few ?ngstroms (1 ? = 0.1 nm = 10-10 m), a molecule's size is a few nm, and clusters or nanoparticles formed by hundreds or thousands of atoms have sizes of tens of nm. Therefore, Nanorobotics is concerned with interactions with atomic- and molecular-sized objects-and is sometimes called Molecular Robotics.

Molecular Robotics falls within the purview of Nanotechnology, which is the study of phenomena and structures with characteristic dimensions in the nanometer range. The birth of Nanotechnology is usually associated with a talk by Nobel-prize winner Richard Feynman entitled "There is plenty of room at the bottom", whose text may be found in [Crandall & Lewis 1992]. Nanotechnology has the potential for major scientific and practical breakthroughs.

Future applications ranging from very fast computers to self-replicating robots are described in Drexler's seminal book [Drexler 1986]. In a less futuristic vein, the following potential applications were suggested by well-known experimental scientists at the Nano4 conference held in Palo Alto in November 1995:

" Cell probes with dimensions ~ 1/1000 of the cell's size
" Space applications, e.g. hardware to fly on satellites
" Computer memory
" Near field optics, with characteristic dimensions ~ 20 nm
" X-ray fabrication, systems that use X-ray photons
" Genome applications, reading and manipulating DNA
" Nanodevices capable of running on very small batteries
" Optical antennas

Nanotechnology is being pursued along two converging directions. From the top down, semiconductor fabrication techniques are producing smaller and smaller structures-see e.g. [Colton & Marrian 1995] for recent work. For example, the line width of the original Pentium chip is 350 nm. Current optical lithography techniques have obvious resolution limitations because of the wavelength of visible light, which is in the order of 500 nm. X-ray and electron-beam lithography will push sizes further down, but with a great increase in complexity and cost of fabrication. These top-down techniques do not seem promising for building nanomachines that require precise positioning of atoms or molecules.

Alternatively, one can proceed from the bottom up, by assembling atoms and molecules into functional components and systems. There are two main approaches for building useful devices from nanoscale components. The first is based on self-assembly, and is a natural evolution of traditional chemistry and bulk processing-see e.g. [G?mez-L?pez et al. 1996]. The other is based on controlled positioning of nanoscale objects, direct application of forces, electric fields, and so on. The self-assembly approach is being pursued at many laboratories. Despite all the current activity, self-assembly has severe limitations because the structures produced tend to be highly symmetric, and the most versatile self-assembled systems are organic and therefore generally lack robustness. The second approach involves Nanomanipulation, and is being studied by a small number of researchers, who are focusing on techniques based on Scanning Probe Microscopy.
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07-01-2010, 10:29 PM

could u send me the full report i need to give a seminar and presentation...pleaseee
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08-01-2010, 06:17 PM

full report about nanorobotics is in this thread:
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23-04-2010, 09:52 AM

please visit
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04-10-2010, 10:49 PM

send me report on nanorobotics
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11-10-2010, 04:23 PM

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18-10-2010, 01:07 PM

pls gve ppt of this topic
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18-10-2010, 02:52 PM

hi, can u send me some IEEE papers related to nanorobotics,or any other topics to my email id.
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29-03-2011, 10:38 AM

.ppt   404056_634108699014650000-Ver1.ppt (Size: 3.64 MB / Downloads: 76)
Isaac Asimov:
Laws of Robotics

1. A robot may not injure a human being or, through inaction, allow a human being to come to harm.
2. A robot must obey any orders given to it by human beings, except where such orders would conflict with the First Law.
3. A robot must protect its own existence as long as such protection does not conflict with the First or Second Law
Present Nanorobotics
No artificial non-biological nanorobots have yet been created, it (mechanically) remains a hypothetical concept.
Nubots (Nucleic Acid Nanorobots
Bacteria Based
Nanorobot Design
• Molecular sorting rotors
• Propeller
• Fins
• Sensors
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12-04-2011, 02:13 PM

Presented By:
Nitin George Anand

.ppt   Nitin nanorobot seminar.ppt (Size: 4.13 MB / Downloads: 63)
Define Nano?

 Objects of the size 10-9.
 1nm is equal to 1 millionth of 1mm.
 A nanometer is a billionth of a meter, that is; about 1/80,000 of the diameter of a human hair, or 10 times the diameter of a hydrogen atom.
Nanotechnology is a new science that deals with manipulating materials at atomic or molecular level.
 Nanotechnology is moving fast towards nanoelectronics fabrication.
 Chemically assembled electronic nanotechnology provides an alternative to using a complementary metal oxide semiconductor (CMOS) for constructing circuits with feature sizes in the tens of nanometers.
 Applied in construction of Nano Materials
 Applied in Molecular NanoTechnology
 Applied in NanoRobotics and many more….
Nano Materials
 Stain Resistant clothes using nano fibers
 Nano Materials
 Protective nano paint for cars
Water and dirt repellent
Resistant to chipping and scratches
Brighter colors, enhanced gloss
In the future,
could change color and self-repair?
 Nano Circuitry
Two Approaches:
1)Attach metal etc. after structure is built
2)Let structural self-assembly and functionalization occur simultaneously
 People are showing promising results from both methods
 Nano Media
 Nano Coatings
 Preventing Viruses from infecting us
 A NanoRobot is a tiny machine designed to perform a specific task or tasks repeatedly and with precision at nanoscale dimensions, that is, dimensions of a few nanometers (nm) or less, where 1 nm = 10-9 meter.
 NanoRobots might function at the atomic or molecular level to build devices, machines, or circuits, a process known as molecular manufacturing.
 NanoRobots might also produce copies of themselves to replace worn-out units, a process called self-replication.
 Robert Freitas
 Approaches
 Biochip
Joint Use of NanoElectronics, photolithography and new biomaterials.
 Nubots
Nubot is an abbreviation for "nucleic acid robots."
 Positional Nanoassembly
Using Mechanosynthesis.
 Bacteria Based
Based on Micro organisms.
 Open Technology
Uses NanoBio-Technology
 NanoRobotics is concerned with:
 Design and Fabrication
 Programming and coordination of large numbers of NanoRobots
 Programmable assembly of nanometer scale components with micro or macro devices or by self assembly on programmed templates.
 Issues to be addressed while constructing a NanoRobot
 Sensors
 Actuators
 Propulsion
 Communication
 Programming and Coordination
Devices that exploit the change in conductivity of nanotubes and nanowires are called nanosensors.
 It should detect obstacles
 It should sense the chemicals present
 Actuators
 Artificial Molecular Machines
 Biomotors
Other nanomachines
Adendoine Triphosphate
A chemical compound that functions as fuel in NanoRobots
Swimming or flying in fluids seems more attractive than walking or crawling on a surface, since most objects are likely to be encountered on a surface.
Bacteria are good examples for NanoRobots because they have sizes on the order of few micrometers and they can move in fluids.
 Control
 Contollers are typically fully fledged computers
Ex Braitenberg’s vehicle 2b
 Communication
 Communication among NanoRobots takes place by means of waves, acoustics, electrical or optical signals transmitted through small antennae
 Cell and subcellular structures communicate by using molecular recognition
Programming and Coordination
NanoRobot by itself will have limited capablities, but coordinated effort of multitude will produce the desired system level results.
Coordination is required for communicating, sensing and acting.
 Construction and working of a NanoRobot
Applications of NanoRobotics
 Used in NanoMedicine
 Used in Telesurgery
 Used in purification of water
 Used in Drug delivery
 Used in purification of atmosphere and also helps in reducing carbon footprints.
 Used in detetction of Chemical and Biological warfare agents
 In Near Future???
 Human Shaped NanoRobots!!
 Common Terminologies Used in NanoRobotics
 Atomic Force Microsope
 Currently, a variety of research is being performed on NanoRobotic devices.
 Few industrial products exist right now.
 The possibilities are endless, but will take time to develop.
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06-08-2011, 09:54 AM

.ppt   nanobots.ppt (Size: 7.67 MB / Downloads: 47)
Nanotechnology (sometimes shortened to "nanotech") is the study of manipulating matter on an atomic and molecular scale. Generally, nanotechnology deals with structures sized between 1 to 100 nanometer in at least one dimension, and involves developing materials or devices within that size.
Robotics is the branch of technology that deals with the design, construction, operation, structural disposition, manufacture and application of robots. Robotics is related to the sciences of, enginnering, electronics, mechanics and software
What is Nanorobotics?
Programmable assembly of nm-scale components either by manipulation with macro or micro devices, or by directed self-assembly.
Design and fabrication of robots with overall dimensions at or below the mm range and made of nm-scale components.
Programming and coordination of large numbers (swarms) of such nanorobots.
Known as nanorobot pioneer, adriano Cavalcanti is the medical nanorobotics inventor for the pratical hardware architecture of nanorobots, which was integrated as a model based on nanobioelectronics for applications in environmental monitoring, brain aneurysm, diabetes, cancer and cardiology. His advanced prototype provided a suitable integrated circuit approach, using an effective wireless platform
Computers and Control
Actuators and Propulsion
Interfaces and Integration
Programming and Coordination
Nanorobots raise all the issues that are important for NEMS
Designs derived from biological models
Components: onboard sensors, motors, manipulators , power suppliers,molecular components
Best known biological sample is ribosome used to constuct robotic arm
Manipulator arm driven by detailed sequenc e of controlsignals
Control signals received by robotic arm via on board sensors using broadcast architecture
Assemblers are molecular machine system perform molecular manufacturing on atomic scale
Breaking up blood clots
Fighting cancer
Parasite removal
Breaking up of kidney stones
Nanorobots might carry small ultrasonic signal generators to deliver frequencies directly to kidney stones
Nanorobots may treat conditions like arteriosclerosis by physically chipping away the plaque along artery walls
Microorganism Detection
Nanowire Detection of Algae in a Microchannel
Provides realtime information about antibodies to antigens, cell receptors to their glands etc..
Used for drug detection
To detect chemical vapours at low concentation based on surface stress.
Nanorobots can be used to actively repair damaged suit materials while an astronaut is in the field
specialized Marssuit Repair Nanorobots (MRN). MRN nanorobots operate as space-fillingpolyhedra to repair damage to a Marssuit
Measurement of toxic elements in environment
Nanobots are going to make it easier and cheaper to pull out, clean up and create useful commodities for us to reuse. And once you understand the vast potential for Nanotechnology, you are going to understand that our future is going to be so bright... it is going to be so ……….freakin' brilliant!
With 15,342 atoms, this parallel-shaft speed reducer gear is one of the largest nanomechanical devices ever modeled in atomic detail
The microscopic size of nanomachines translates into high operational speed
individual units require only a tiny amount of energy to operate
Durability is another potential asset
nanites might last for centuries before breaking down
risk of cancer
may affect human health by introducing toxicity in blood
Replication may become out of control
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to get information about the topic nano robotics fullreport,ppt and related topic refer the link bellow
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.docx   nanorobot .docx (Size: 855.23 KB / Downloads: 23)


A nanorobot is a tiny machine designed to perform a specific task or tasks repeatedly and
with precision at nanoscale dimensions, that is, dimensions of a few nanometers (nm) or less, where 1 nm = 10-9 meter. Nanorobots have potential applications in the assembly and maintenance of sophisticated systems. Nanorobots might function at the atomic or molecular level to build devices, machines, or circuits, a process known as molecular manufacturing. Nanorobots might also produce copies of themselves to replace worn-out units, a process called self-replication.

Nanorobots are of special interest to resrise to the field of nanomedicine. It has been suggested that a fleet of nanorobots might serve as antibodies or antiviral agents in patients with compromised immune systems, or in diseases that do not respond to more conventional measures. There are numerous other potential medical applications, including repair of damaged tissue, unblocking of arteries affected by plaques, and perhaps the construction of complete replacement body organ.

A major advantage of nanorobots is thought to be their durability. In theory, they can remain operational for years, decades, or centuries. Nanoscale systems can also operate much faster than their larger counterparts because displacements are smaller; this allows mechanical and electrical events to occur in less time at a given speed. The most detailed discussions of nanorobotics, including specific design issues such as sensing, power communication, navigation, manipulation, locomotion, and onboard computation, have been presented in the medical context of nanomedicine by Robert Freitas. Although much of these discussions remain at the level of unbuildable generality and do not approach the level of detailed engineering, the Nanofactory Collaboration[1], founded by Robert Freitas and Ralph Merkle in 2000, is a focused ongoing effort involving 23 researchers from 10 organizations and 4 countries that is developing a practical research agenda[2] specifically aimed at developing positionally-controlled diamond mechanosynthesis and a diamondoid nanofactory that would be capable of building diamondoid medical nanorobots.


Nanorobotics based on the principle of nanotechnology. Truly revolutionary nanotechnology products, materials and applications, such as nanorobotics, are years in the future (some say only a few years; some say many years). What qualifies as "nanotechnology" today is basic research and development that is happening in laboratories all over the world. "Nanotechnology" products that are on the market today are mostly gradually improved products (using evolutionary nanotechnology) where some form of nanotechnology enabled material (such as carbon nanotubes, nanocomposite structures or nanoparticles of a particular substance) or nanotechnology process (e.g. nanopatterning or quantum dots for medical imaging) is used in the manufacturing process. In their ongoing quest to improve existing products by creating smaller components and better performance materials, all at a lower cost, the number of companies that will manufacture "nanoproducts" (by this definition) will grow very fast and soon make up the majority of all companies across many industries. Evolutionary nanotechnology should therefore be viewed as a process that gradually will affect most companies .

CARBON(principle element)

The principle element of nanorobot is the carbon and other elements are H,.N,F,Si.
Carbon nanotubes (CNTs) were first observed by Sumio Iijima in 1991. CNTs are extended tubes of rolled graphene sheets. There are two types of CNT: single-walled (one tube) or multi-walled (several concentric tubes). Both of these are typically a few nanometres in diameter and several micrometres to centimetres long. CNTs have assumed an important role in the context of nanomaterials, because of their novel chemical and physical properties. They are mechanically very strong (their Young’s modulus is over 1 terapascal, making CNTs as stiff as diamond), flexible (about their axis), and can conduct electricity extremely well (the helicity of the graphene sheet determines whether the CNT is a semiconductor or metallic). All of these remarkable properties give CNTs a range of potential applications: for example, in reinforced composites, sensors, nanoelectronics and display devices.


We need to find a way of introducing the nanomachine into the body, and allowing it access to the operations site without causing too much ancillary damage. We have already made the decision to gain access via the circulatory system.The first is that the size of the nanomachine determines the minimum size of the blood vessel that it can traverse. We want to avoid damaging the walls of whatever blood vessel the device is in, we also do not want to block it much, which would either cause a clot to form, or just slow or stop the blood flow. What this means is that the smaller the nanomachine the better. However, this mustbe balanced against the fact that the larger the nanomachine the more versatile and effective it can be. This is especially important in light of the fact that external control problems become much more difficult if we are trying to use multiple machines, even if they don't get in each others way.


The possibility of nanorobotics and nanotechnology was first proposed by Nobel prize winner Richard Feynman in his talk in 1959 titled“There is plenty of room at the bottom”While many definitions of nanotechnology exist, the one most widely used is from the US Government’s National Nanotechnology Initiative (NNI). According to the NNI, nanotechnology is defined as: “Research and technology development at the atomic, molecular and macromolecular levels in the length scale of approximately 1 — 100 nanometer range, to provide a fundamental understanding of phenomena and materials at the nanoscale and to create and use structures, devices and systems that have novel properties and functions because of their small and/or intermediate size.”

There are three main considerations scientists need to focus on when looking at nanorobots moving through the body -- navigation, power and how the nanorobot will move through blood vessels. Nanotechnologists are looking at different options for each of these considerations, each of which has positive and negative aspects. Most options can be divided into one of two categories: external systems and onboard systems.

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10-11-2012, 06:05 PM


.ppt   nano2.ppt (Size: 2.18 MB / Downloads: 20)


Nanotechnology- the engineering of tiny machines that deals with the design and manufacture of extremely small electronic circuits at the molecular level of matter and vastly directed towards medical applications.
Nanorobots - tiny nanoscale devices that may be used to perform a variety of tasks very accurately and in lesser time.
Nanorobots for researchers in the medical industry has given rise to the field of nanomedincine.
Heart blocks are becoming one of the major diseases among the people of today’s world, with a variety of reasons for occurrence, ranging from lack of exercise to smoking and drinking.
Today’s technology promises a lot more than the insertion of a thin tube into your blood vessels to cure heart blocks using Angioplasty.
Nanorobots can be effectively used in this process of curing the heart blocks.


The cholesterols are chemical compounds of glycerol and
unsaturated acid.
1)Low density lipids (LDL).
2)High density lipids (HDL).
The HDLs are basically harmless ,stable , disposed off by the body effectively and do not stick to the walls of the blood vessels.
These LDLs or ‘bad cholesterols’ get accumulated on the walls of the blood vessels and make the blood vessels loose their elastic, resulting in decreasing the ability of blood vessels to keep up with the pressure variations of the blood.


The LDL’s form a lump and close in on the diameter of the blood vessel , decreasing the diameter of the blood vessel .The intensity of this problem is measured by a method known as Angiogram.
A small tube of diameter of about a few micrometers with a catheter at the end is introduced into the veins up to the pericardium.
This catheter injects a radioactive fluid into the blood stream, the flow of which is monitored by a continuous X-ray.
Once the block has been located, it is removed by a method known as Angioplasty.


The types of nanorobots needed for the process.
The coustic sensors in the sensor robots get activated and begin navigating the army of robots through the blood stream to the pericardium.
This is very essential in order to guide all the nanorobots to the desired location.
The sensor robots perform the most sophisticated type of diagnosis known, i.e. diagnosis from the inside of the human body.
The second confirmation comes from the chemo sensors.
These sensors scan the region they traverse, for the chemical composition of the cholesterols.
Moreover , there is literally zero damage to the surrounding healthy tissues.


Even though this may seem to most of them like a fairy tale, the days of implementation of these devices are not far off.
The machines needed to fabricate these nanorobots are yet to be visualized.
Let us hope that this technology also will one day, become as successful and dominating like aviation today.

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