ナノメートル、ナノメータ
- 関
- nm
WordNet
- a metric unit of length equal to one billionth of a meter (同)nanometre, nm, millimicron, micromillimeter, micromillimetre
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/04/08 06:13:01」(JST)
[Wiki en表示]
| Nanometre |
| Unit system |
metric |
| Unit of |
length |
| Symbol |
nm |
| Unit conversions |
| 1 nm in ... |
... is equal to ... |
| SI units |
6991100000000000000♠1×10−9 m |
| Natural units |
7025618770000000000♠6.1877×1025 ℓP
7001188970000000000♠18.897 a0 |
| imperial/US units |
3.2808×10−9 ft
3.9370×10−8 in |
The nanometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American spelling) is a unit of length in the metric system, equal to one billionth of a metre (6991100000000000000♠0.000000001 m). The name combines the SI prefix nano- (from the Ancient Greek νάνος, nanos, "dwarf") with the parent unit name metre (from Greek μέτρον, metrοn, "unit of measurement"). It can be written in scientific notation as 6991100000000000000♠1×10−9 m, in engineering notation as 1 E−9 m, and is simply 1/7009100000000000000♠1000000000 metres. One nanometre equals ten ångströms. When used as a prefix for something other than a unit of measure (as in "nanoscience"), nano refers to nanotechnology, or phenomena typically occurring on a scale of nanometres (see nanoscopic scale).[1]
The nanometre is often used to express dimensions on an atomic scale: the diameter of a helium atom, for example, is about 0.1 nm, and that of a ribosome is about 20 nm. The nanometre is also commonly used to specify the wavelength of electromagnetic radiation near the visible part of the spectrum: visible light ranges from around 400 to 700 nm.[2] The ångström, which is equal to 0.1 nm, was formerly used for these purposes, but is still used in other fields. Since the late 1980s, in usages such as 32 nm and 22 nm, it has also been used to describe typical feature sizes in successive generations of the ITRS Roadmap for miniaturization in the semiconductor industry.
History
The nanometre was formerly known as the millimicrometre – or, more commonly, the millimicron for short – since it is 1/1000 of a micron (micrometre), and was often denoted by the symbol mµ or (more rarely and confusingly, since it logically should refer to a millionth of a micron) as µµ.[1][3][4]
References
- ^ a b Svedberg, The; Nichols, J. Burton (1923). "Determination of the size and distribution of size of particle by centrifugal methods". Journal of the American Chemical Society. 45 (12): 2910–2917. doi:10.1021/ja01665a016.
- ^ Hewakuruppu, Y., et al., Plasmonic " pump – probe " method to study semi-transparent nanofluids, Applied Optics, 52(24):6041-6050
- ^ Svedberg, The; Rinde, Herman (1924). "The ulta-centrifuge, a new instrument for the determination of size and distribution of size of particle in amicroscopic colloids". Journal of the American Chemical Society. 46 (12): 2677–2693. doi:10.1021/ja01677a011.
- ^ Terzaghi, Karl (1925). Erdbaumechanik auf bodenphysikalischer Grundlage. Vienna: Franz Deuticke. p. 32.
External links
|
Look up nanometre in Wiktionary, the free dictionary. |
- Near-field Mie scattering in optical trap nanometry
- Nanoscale Informal Science Network
|
SI units of length
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From smallest to largest (left to right). Commonly used units shown in bold italics.
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- yoctometre (1×10−24 m)
- zeptometre
- attometre
- femtometre
- picometre
- nanometre
- micrometre
- millimetre
- centimetre
- decimetre
- metre (m)
- decametre
- hectometre
- kilometre
- megametre
- gigametre
- terametre
- petametre
- exametre
- zettametre
- yottametre (1×1024 m)
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UpToDate Contents
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English Journal
- Measurement in the confocal microscope.
- Cox G.SourceAustralian Centre for Microscopy & Microanalysis, University of Sydney, Sydney, NSW, Australia.
- Methods in molecular biology (Clifton, N.J.).Methods Mol Biol.2014;1075:273-95. doi: 10.1007/978-1-60761-847-8_14.
- All measurements require that the microscope must be aligned as accurately as possible, and the gain (or PMT voltage) and black level must be set to avoid any overflow or underflow. Measuring surface profiles and relative depths is straightforward and can be carried out to a higher accuracy than the
- PMID 24052358
- Are endosomal trafficking parameters better targets for improving mAb pharmacokinetics than FcRn binding affinity?
- Gurbaxani B, Dostalek M, Gardner I.SourceChronic Viral Diseases Branch, Division of High-Consequence Pathogens and Pathology, National Centre for Emerging and Zoonotic Infectious Diseases, Centres for Disease Control and Prevention, Atlanta, GA, USA. Electronic address: brian.gurbaxani@cdc.hhs.gov.
- Molecular immunology.Mol Immunol.2013 Dec 31;56(4):660-74. doi: 10.1016/j.molimm.2013.05.008. Epub 2013 Aug 2.
- F.W.R. Brambell deduced the existence of a protective receptor for IgG, the neonatal Fc receptor (FcRn), long before its discovery in the early to mid-1990s. With the coincident, explosive development of IgG-based drugs, FcRn became a popular target for tuning the pharmacokinetics of monoclonal anti
- PMID 23917469
- A dual-template imprinted polymer-modified carbon ceramic electrode for ultra trace simultaneous analysis of ascorbic acid and dopamine.
- Bali Prasad B, Jauhari D, Prasad Tiwari M.SourceAnalytical Division, Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi 221005, India. Electronic address: prof.bbpd@yahoo.com.
- Biosensors & bioelectronics.Biosens Bioelectron.2013 Dec 15;50:19-27. doi: 10.1016/j.bios.2013.05.062. Epub 2013 Jun 15.
- A dual-template imprinted polymer film containing dispersed multiwalled carbon nanotubes was exploited in the fabrication of a typical, reproducible, and rugged carbon ceramic electrode, adopting "surface grafting from" approach for the growth of a nanometer thin coating on its surface. For this, ch
- PMID 23831643
Japanese Journal
- 水素フリーカーボン系薄膜のナノ構造変化による 境界潤滑特性の向上に関する研究(博士論文概要)
- 日本工業大学研究報告 = Report of researches, Nippon Institute of Technology 47(1), 38-49, 2017-06
- NAID 120006316959
- Improvement of Electric Conductivity of Non-graphitizable Carbon Material via Breaking-down and Merging of the Microdomains
- Evergreen : joint journal of Novel Carbon Resource Sciences & Green Asia Strategy 4(1), 16-20, 2017-03
- NAID 120006309092
- Visualization of Au Nanoparticles Buried in a Polymer Matrix by Scanning Thermal Noise Microscopy
Related Links
- Define nanometer. nanometer synonyms, nanometer pronunciation, nanometer translation, English dictionary definition of nanometer. n. Abbr. nm One billionth of a meter. n. a unit of measure equal to one billionth of a meter ? ...
- A nanometer is a unit of spatial measurement that is 10 to the -9th meter, or one billionth of a meter. It is commonly used in nanotechnology, the building of extremely small machines.
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ナノメータ、ナノメートル
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