A unit of length in the metric system, equal to one billionth of the meter (10 ⁹)
Technology
The making, usage, and knowledge of tools, machines and techniques in order to solve a problem or perform a specific function
Nanotechnology
Study of manipulating matter on an atomic scale
Refers to the constructing and engineering of the functional systems at very microlevel
The first concept of nanotechnology was presented by Dr. Richard Feynman
1959
Invention of the Scanning Tunneling Microscope
1981
Discovery of fullerene
1985
The term nano technology has been coined by Norio Taniguchi
1974
Beginning of commercial application of nanotechnology
Early 2000s
Early commercial applications of nanotechnology
Using of silver nano platform in textiles
Important modern developments
Atomic force microscope (AFM)
Scanning Tunneling Microscope (STM)
Atomicforcemicroscope (AFM) and Scanning Tunneling Microscope (STM)
Scanning probes that launched nanotechnology
Techniques of nanolithography
Optical lithography
X-ray lithography
Dip pen nanolithography
Electron beam lithography (inkjet printer)
Lithography in MEMS context
Transfer of a pattern into a photosensitive material by selective exposure to a radiation source such as light
Lithography
A printing process that uses a flat stone or metal plate on which the image areas are worked using a greasy substance so that the ink will adhere to them, while the non-image areas are made ink-repellent
Nanoparticles are particles with at least one dimension less than 100 nm
Surface area to volume ratio increases as the particle size decreases, leading to increased reactivity and catalytic activity.
The term nanotechnology refers to the manipulation of matter on an atomic, molecular, and supramolecular scale
The size of nanoparticles is important because it affects their properties, such as surface area to volume ratio.
Nanoparticles are particles with sizes between 1-100 nm
Nano is the prefix used to indicate one billionth (10-9) or one thousandth (10-3)
Nanomaterials are materials engineered to have unique properties due to their size and shape
Nanosensors can detect changes in their environment due to their small size and high surface area to volume ratio
Nanomedicine focuses on developing medical treatments and technologies based on nanomaterials and techniques.
Nanomaterials have unique physical, chemical, optical, electrical, mechanical, and biological properties due to their small size
Nanosensors detect changes in physical or chemical parameters at the nanometer scale.
Gold nanoparticles have been used in various applications including drug delivery, cancer treatment, and electronics.
Microelectromechanical systems (MEMS) are similar but operate at larger scales
Nanoelectronics involves the use of nanoscale materials and devices in electronic applications.
Nanoelectromechanical systems (NEMS) are devices that combine mechanical elements with electronic components
Nanotechnology involves manipulating matter at an atomic scale using tools like scanning tunneling microscopes and atomic force microscopes.
DNA is made up of nucleotides, which consist of a sugar-phosphate backbone and four different bases (Adenine, Thymine, Cytosine, Guanine).
The term "nanotech" was coined by Norio Taniguchi in 1974 to describe the production of parts on an atomic level.
The color emitted by quantum dots depends on their size and composition
Quantum dots can be made from different types of semiconductors such as CdSe, PbS, InAs, ZnCdSe, etc.
Ribonucleicacid (RNA): A single strand molecule composed of ribose sugars instead of deoxyribose sugars found in DNA.
The sequence of these bases determines the genetic information encoded by DNA.
Messenger RNA (mRNA) carries genetic information from the nucleus to the cytoplasm where it directs protein synthesis.
mRNA: Messenger RNA carries instructions from DNA to make proteins.
Electronic devices are being developed that use individual atoms or molecules as electronic components.
Nanoelectronics involves manipulating electrons at the nanoscale using techniques like scanning tunneling microscopy (STM) and electron beam lithography.