Nanotechnology Definition and 75 Discussions

Nanotechnology, also shortened to nanotech, is the use of matter on an atomic, molecular, and supramolecular scale for industrial purposes. The earliest, widespread description of nanotechnology referred to the particular technological goal of precisely manipulating atoms and molecules for fabrication of macroscale products, also now referred to as molecular nanotechnology. A more generalized description of nanotechnology was subsequently established by the National Nanotechnology Initiative, which defined nanotechnology as the manipulation of matter with at least one dimension sized from 1 to 100 nanometers. This definition reflects the fact that quantum mechanical effects are important at this quantum-realm scale, and so the definition shifted from a particular technological goal to a research category inclusive of all types of research and technologies that deal with the special properties of matter which occur below the given size threshold. It is therefore common to see the plural form "nanotechnologies" as well as "nanoscale technologies" to refer to the broad range of research and applications whose common trait is size.
Nanotechnology as defined by size is naturally broad, including fields of science as diverse as surface science, organic chemistry, molecular biology, semiconductor physics, energy storage, engineering, microfabrication, and molecular engineering. The associated research and applications are equally diverse, ranging from extensions of conventional device physics to completely new approaches based upon molecular self-assembly, from developing new materials with dimensions on the nanoscale to direct control of matter on the atomic scale.
Scientists currently debate the future implications of nanotechnology. Nanotechnology may be able to create many new materials and devices with a vast range of applications, such as in nanomedicine, nanoelectronics, biomaterials energy production, and consumer products. On the other hand, nanotechnology raises many of the same issues as any new technology, including concerns about the toxicity and environmental impact of nanomaterials, and their potential effects on global economics, as well as speculation about various doomsday scenarios. These concerns have led to a debate among advocacy groups and governments on whether special regulation of nanotechnology is warranted.

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  1. gggnano

    Can I get any macro object of very small thickness such as 10 nm?

    I know graphene particles are small but how do I work with them separately? If you tell me easy-to-accomplish way for handling a single grain of graphene at home...OK. I was thinking about something like a very thin sheet of graphene, but in quantum measurements they are huge: micrometers and I...
  2. F

    I What are nanosystems and where can we find them in our daily lives?

    Hey everyone! I'm really interested in nanosystems and currently collecting information on the topic. I've read quite a few publications and been on some webistes such as nanoplus (they explained what they do really well!) but I would also like to see what my think-alikes on here have to say...
  3. P

    A Acceptable Atmosphere for CZ/Float-zone Refining

    Both the cz (Czochralski Process), and Float-zone refining of silicon require an inert atmosphere, usually argon. How pure does the argon atmosphere have to be? How high of a vacuum has to be pulled before releasing argon into the tank?
  4. P

    Silicon not heating with induction heater?

    I’m using an inductive heater to try to melt some 99.85% polycrystalline silicon, as would occur in the Czochralski process, but the silicon workpiece is not melting let alone even getting hot. The silicon workpiece is about the size of a playing dice. It becomes conductive at 200 F and becomes...
  5. Wrichik Basu

    Neutrophil nanosponges soak up proteins, reducing arthritis

    Have a look at the article here. From the article: Transmission electron microscopy of neutrophil nanosponges. Credit: Qiangzhe Zhang/Nature Nanotechnology
  6. P

    Why is silicon not melting?

    I’m using a zvs inductive heater to try to melt some 99.85% polycrystalline silicon, as would occur in the Czochralski process, but the silicon workpiece is not melting let alone even getting hot. The silicon workpiece is about the size of a playing dice, and becomes fully conductive after...
  7. Phantoful

    Voltage on a quadrant photodiode used with an AFM

    Homework Statement An AFM uses a quadrant photo-diode to measure the deflection of the laser beam. Sketch the voltage in quadrants A, B, C and D as the tip travels on top of a single carbon nano-tube resting on a flat surface when the AFM is operating on tapping mode. Homework Equations Not...
  8. A

    B What would happen if nothing was like it is

    HI guys!! I was thinking.... What would happen if the atom were considered the smallest thing of the universe, or just that electrons, protons e neutrons were that? That would impact in semiconductors technologies? Or plasma? Or nanotech? How? Thanks in advance.
  9. N

    Other Re; Nanomedical enteurpreneur

    I am currently doing a diploma of bio science i want to be a doctor and then research and start a nanomedical company , dealing with drug delivery systems, i want to know how to do such a thing
  10. Gamma

    Nanotechnology Research

    Hi experts, I am looking for scholarly articles (recent ones are better) on (1) Nano-propulsion and (2) Drug Delivery for a project for a high school student. I searched the internet, but hard to find recent scholarly articles. I am ready to pay a small fee to download them if available. I...
  11. N

    A The spectral gap and it's decidability

    The article on undecidability of presence of spectral gap by describing its microscopic structure seems to contradict the fact that we can decide whether a CNT is metallic or semi -conducting by checking its diameter and its twist.
  12. ElPimiento

    Studying Courses/Books Recommended for Metamaterial Research?

    I'm a first year student in college and I've started shadowing under a grad student, who's in a nano-optics research group (, in order to learn about microfabrication. I'd like to start conducting my own research soon; however, i don't know exactly what it...
  13. Ygggdrasil

    Making a Voltron out of DNA

    A figure in a recent paper from Science made me smile, so I thought I'd share it with you guys. The paper describes a new way of joining nanoscale building blocks together using DNA origami. It's based on the principle that if you have two DNA double helices with a gap in between (see the blue...
  14. Biscuit

    Chemistry Nanotechnology careers with biology and chemistry?

    Ok this is my first time posting but my questions about my future are tearing me apart. Im only a sophomore in high school but I am very interested/study physics and intend on perusing my phd. I find nano technology very Interesting and one of the most influential studies that interests me, but...
  15. F

    Engineering Relationship Mechanical Engineering and Nanotechnology

    I got a B.S. in Mechanical Engineering and I am now doing a PhD in Nanotechnology in which I am synthesizing a nanomaterial. Someone just told me that nanotechnology is more like mechanical engineering and materials engineering than any other thing. Based on my work I can see the relationship...
  16. neosoul

    Preparatory classes for nanotechnology

    I think having a career in nanotechnology might be the right choice. However, my school doesn't offer a concentration in nanotechnology unless you are in chemistry. I would like to know some undergraduate courses that would be helpful to me if I decided to go on to get a masters in nanotechnology.
  17. F

    Teaching Physics with a PhD in Nanotechnology

    I will get my PhD in Nanotechnology on June 2016 and I want to know if I can teach physics in college or at least in high school with this degree.
  18. RealDoctorStu

    Superparamagents and superhot nanoparticle iron oxide

    I'm trying to understand superparamagentism. There is an experimental medical treatment that uses the superparamagnetism properties of nanoparticle-sized iron oxide particles. Injected into a cancer tumour, when the person is placed in a rapidly alternating magnetic field, the iron oxide...
  19. I

    Surface plasmon dependence on surface area to volume ratio

    Hey everyone, I was recently reading a paper on surface enhanced Raman scattering, and it mentioned that plasmons (and for that matter surface plasmon polaritons-where my interest lies) are sensitive to the surface to volume ratio of the structure. I can begin to understand intuitively with...
  20. s@Ed-biophysics

    DNA nano wire

    Hi there Is there anyone to help me about a definition of "DNA nano wire"?!
  21. R

    Seeking opinion of others on quantum systems control and estimation theory

    I am an EE graduate stumbled upon this exciting new field of research fusing control and estimation theory(EE) and quantum mechanics(Physics). I seeking opinion of experts and professionals regarding this field.I think it would be critical for development of new future quantum technologies and...
  22. S

    Cure for ebola?

    I was just wondering if some bacteria or nanotechnology could be genetically engineered to target the Ebola strains? Is this possible? If it is then why is no one coming up with a cure?
  23. ClaireBear1596

    Can't decide between physics and biomedical science.

    I'm currently in my second year of studying Physics in University(undergraduate) but I don't know if I should continue on this path. I'll start from the beginning... Ever since I was little I've always had a fascination with physics, I loved looking at the stars, read countless books on...
  24. voodooattack

    Flashover: A hard sci-fi novel I'm working on

    Here's a story I've been working on for the past week. It's more of an experiment really. This novel does (or will eventually) interact with a myriad of fields, including computer science, nanotechnology, molecular biology, and quantum mechanics. I'd really love to see some input from...
  25. M

    Schools Need Help with Advanced (Past AP) High School Courses

    I'm going into Senior year. I live I have taken 9 (3 I paid for so they don't count as dual enrollment) dual enrollment courses and next year I'm taking 4 more. I've reached my limit on college dual enrollment courses yet I have 2 spots in my schedule. I would like to use these to take...
  26. M

    How to prepare for a PhD

    Hello, I am new to this forum, but I will quickly introduce myself. I am a 19 year old student currently studying the second year for a bachelors degree in nanotechnology. My dream is to become a succesful scientist in material science. I do read chemistry and physics more or less everyday, a...
  27. K

    Career for human life span study

    This might sound crazy, but I want to study pronging human life span. I am thinking of majoring molecular nanotechnology so that I can use this major to construct an artificial enzyme(medical nanorobot) that lengthens telomere (I know this is not the only issue of aging and death). I am not...
  28. T

    Best route to go for Nano Technology (but still be able to get a job?)

    I want to go into nanotechnology but also keep my options open for employment purposes when I graduate. At the moment I'm Chemistry & Material Science double major and I thought that'd be a good combo however at the moment I'm thinking, would MatSci for a B.S be oddly too specific for a B.S...
  29. T

    Civil vs Mechanical vs Electrical Enginnering which should I choose?

    I am a second year civil engineering student. I decided long ago since I was in high school that I would be in engineering. However I only chose civil because I couldn't decide which engineering disipline I should choose. My college only has 4 course in engineering including computer eng. A...
  30. D

    Materials Science vs Physics. Help Please

    I am a senior in highschool and have a problem.. I want to pursue a career in nanotechnology, therefore I applied for an undergraduate place in MSE. The problem is that i've recently started reading about quantum physics and the structure of the physics (with theoretical physics) course and I...
  31. maverick_starstrider

    Can I Get A Reality Check (Accepting a Postdoc Or Not)

    Hi all, I apologize in advance for a bit of a lengthy preface on my question. I'm a PhD student in computational condensed matter (with a specialization in parallel and high-performance computing) who's just finishing off my degree. I don't want to continue in condensed matter...
  32. C

    Purpose of sheet resistance in thin film devices

    In optoelectronics and other nanotechnology applications (like organic photovoltaics, organic LEDs etc) most layers need to be electrically characterized among other types of measurements. Thus, sheet resistance is measured. An example are the 4-point-probe resistivity measurements. Yet, what...
  33. Etienne

    Programs Major in Bio-engineering or Nanotechnology?

    So.... "long story short" I like Nanotechnology / Nanoengineering better than Bioengineering, but I also like Bio.... my question is, which is a better major? Which will get me a better job or get me a job faster? Both fields are "new" and are promising in terms of future, but I've heard...
  34. L

    Best books about mapped genome and nanotechnology

    In PA, the libraries' reading program is about science. I read the book, "Life as we do not know it" and want a book explaining nanotechnology and a book about the mapped genome. Since I have no clue where to begin, I hope you could suggest a book in each category. I took advanced biology...
  35. shezi1995

    A career in Nanotechnology via pure sciences

    I have been offered admission by St Johns College Cambridge University for Natural science. In the first year I have to choose 3 experimental sciences along with maths. My options are physics, chem, materials science, computer science and some biological options. I am looking into a career in...
  36. B

    Nanotechnology engineering?

    Do you think this engineering major will be greatly challenging, more so than others? Tell me what you think about this major! It's currently offered at Waterloo in Canada.
  37. F

    12th Grade student, looking to do engineering!

    I have applied to various universities in Canada for mechanical engineering. That is, I applied to general engineering, but all of the schools require supplementary applications on which you specify which type of engineering you want to pursue. At the University of Waterloo in Ontario, they...
  38. C

    Programs A masters degree in what?

    Next year I should start my master's degree (if everything goes well this year). I have my doubts regarding which area to choose. I know most the teachers. I know with which I would like to work. But I don't want that bias compromising my choice. My university has the following areas for...
  39. H

    Programs Undergraduate Major Advice

    I need some advice for what engineering major to choose as an undergraduate. I understand that it is ultimately my decision, but a little advice would be extremely helpful. A little about me: Right now I am a freshman in electrical engineering. I do not find my introductory EE class...
  40. C

    Engineering Material and Chemical Engineering, which to choose?

    Hi everyone, I'm an a-level student (year 13) doing Physics, Chemistry and Maths. I am struggling of what university subject to apply for...I want to do a subject that is a combination of all three subjects I'm now doing. I like topics that I can go very very deep. I think quantum and...
  41. M

    Advice on material science/nanotechnology

    Hi, I have just completed my undergraduate studies in electrical engineering and looking for options in material science because I have a feeling that is the place where I can get the chance to invent anything if I will ever invent something. The thing is my knowledge is strictly electrical...
  42. G

    Thompson Reuters predicts 2nd Nobel nomination for Sharpless

    For his work on click-chemistry. [Broken] I think it would be a crime if Sharpless didn't get it for click chemistry. It's amazing how much one reaction can revolutionize the way we understand biology...
  43. B

    Engineering Nanotechnology engineering

    what do you think of it ? what are the main career prospects for a phd in nanotechnology engineering ? also how much quantum mechanics do NT engineers study ? can i major in physics and then go for an MSc in nanotechnology ?
  44. J

    Engineering Biochemistry vs. Chemical Engineering

    i'm not exactly sure what i want my future career to be (my interests keep changing) but right now i'm set on engineering. i did a little research and i've narrowed it down to either chemical or systems design engineering. if there are any chemical engineers out there, why did u choose this...
  45. D

    Is Materials Science a good PhD route to pursue?

    Hello everyone, I'm an undergraduate senior majoring in physics and math, with plans to go to grad school next year. I have two questions for you all: 1) for someone interested in nanotechnology, biotechnology, and physics, is materials science a good PhD to pursue? 2) If so, are there any...
  46. A

    Difference between nano physics and nanotechnology

    Hi, I am preparing for a project based on nano physics, and I am just 'beginner'. While preparing I just could not make out the difference between nano physics and nanotechnology. Can somebody help me? Thank you very much.
  47. A

    Research topics and nanotechnology.

    Can someone elaborate on E.E research topics and current-active research programs? I have read about photonics, optical computing, quantum computing and semi-conductors. I plan on doing a project and small research on an undergraduate level. I tried to do a research on tokamaks and confining...
  48. L

    Which specialty should I choose on my last year?

    Greetings, fellow scientists. I've come here due to extreme desperation over a simple fact that causes me a lot of stress: having to choose a specialty for my next year. But first, a bit of elaboration over that. Oh, and the question is going to be long, but I need the help, so if you are...
  49. L

    Career prospects within the field of Nanotechnology

    Hello! First let me introduce myself. I'm an engineering undergraduate in northern Europe. Ever since I started my engineering studies I've had an interest in Nanotechnology, which in my eyes is "the future" along with robotics, automation and more. I'm interested in theoretical mathematics...
  50. L

    MSc in Applied Mathematics as compared to

    Hello, I'm a European EE/Engineering physics undergraduate (something of a mix of those two) trying to figure out what to major in. Up until now my main topic of interest has been nanotechnology. Now I'm not sure that's a good idea because of the seemingly small job market where I live. I want...