WordNet
- of or relating to or constituting a linguistic root; "a radical verb form"
- (mathematics) a quantity expressed as the root of another quantity
- a character conveying the lexical meaning of a logogram
- a person who has radical ideas or opinions
- especially of leaves; located at the base of a plant or stem; especially arising directly from the root or rootstock or a root-like stem; "basal placentation"; "radical leaves" (同)basal
- arising from or going to the root or source; "a radical flaw in the plan"
- feed on carrion or refuse; "hyenas scavenge"
- remove unwanted substances from (同)clean
- clean refuse from; "Scavenge a street"
- a chemical agent that is added to a chemical mixture to counteract the effects of impurities
- any animal that feeds on refuse and other decaying organic matter
PrepTutorEJDIC
- 『根本的な』,『基本的な』 / 《しばしばR-》『急進的な』,過激な / (数学の記号で)根(こん)の / 《しばしばR-》急進堂員,主義者,過激論者 / (数学の記号で)根,根号 / (化学反応で)基(き),根
- 〈腐肉〉‘を'食べる;〈食物・使える物など〉‘を'ごみの中からあさる / 《英》〈街路など〉‘を'そうじする / 腐肉を食べる;ごみあさりをする / 《英》ごみさらいをする
- 腐肉を常食とする動物(ハゲタカ(vulture)・ハイエナ(hyena)など) / (食物や金目のものを探して)ごみあさりをする人
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2017/03/13 19:02:17」(JST)
[Wiki en表示]
A scavenger in chemistry is a chemical substance added to a mixture in order to remove or de-activate impurities and unwanted reaction products, for example oxygen, to make sure that they will not cause any unfavorable reactions. Their use is wide-ranged:
- In atmospheric chemistry, the most common scavenger is the hydroxyl radical, a short-lived radical produced photolytically in the atmosphere. It is the most important oxidant for carbon monoxide, methane and other hydrocarbons, sulfur dioxide, hydrogen sulfide, and most of other contaminants, removing them from the atmosphere.
- In molecular laser isotope separation, methane is used as a scavenger gas for fluorine atoms.
- Hydrazine and ascorbic acid are used as oxygen scavenger corrosion inhibitors.
- Tocopherol and naringenin are bioactive free radical scavengers that act as antioxidants; synthetic catalytic scavengers are their synthetic counterparts
- Organotin compounds are used in polymer manufacture as hydrochloric acid scavengers.
- Oxygen scavengers or oxygen absorbers are small sachets or self adhesive labels that are placed inside modified atmosphere packs to help extend product life (notably cooked meats) and help improve product appearance. They work by absorbing any oxygen left in the pack by oxidation of the iron powder contained in the sachet/label.[1]
- Glutathione in the body scavenges oxidizing free radicals and peroxides and as a thiol nucleophile, attacks dangerous alkylating electrophiles, which may be exogenous toxins or produced in the course of metabolism (e.g. NAPQI from paracetamol).
References
- ^ http://www.newscientist.com/article/mg18224443.600-wrappers-smarten-up-to-protect-food.html New Scientist, 24 April 2004
UpToDate Contents
全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.
English Journal
- Physicochemical stability, microrheological properties and microstructure of lutein emulsions stabilized by multilayer membranes consisting of whey protein isolate, flaxseed gum and chitosan.
- Xu D1, Aihemaiti Z1, Cao Y2, Teng C1, Li X1.
- Food chemistry.Food Chem.2016 Jul 1;202:156-64. doi: 10.1016/j.foodchem.2016.01.052. Epub 2016 Jan 13.
- The impact of chitosan (CTS) on the physicochemical stability, microrheological property and microstructure of whey protein isolate (WPI)-flaxseed gum (FG) stabilized lutein emulsions at pH 3.0 was studied. A layer-by-layer electrostatic deposition method was used to prepare multilayered lutein emul
- PMID 26920280
- Sono-advanced Fenton decolorization of azo dye Orange G: Analysis of synergistic effect and mechanisms.
- Cai M1, Su J1, Lian G1, Wei X1, Dong C2, Zhang H1, Jin M3, Wei Z4.
- Ultrasonics sonochemistry.Ultrason Sonochem.2016 Jul;31:193-200. doi: 10.1016/j.ultsonch.2015.12.017. Epub 2015 Dec 28.
- In this study, a successful decolorization of Orange G was achieved by means of coupling zero valent iron (ZVI), H2O2 and ultrasound (US) under acidic pH conditions. The synergistic effect and characterization of potential roles of the factors including ZVI, tert-Butanol as radical scavenger, dissol
- PMID 26964940
- Cytotoxic responses to 405nm light exposure in mammalian and bacterial cells: Involvement of reactive oxygen species.
- Ramakrishnan P1, Maclean M2, MacGregor SJ3, Anderson JG3, Grant MH4.
- Toxicology in vitro : an international journal published in association with BIBRA.Toxicol In Vitro.2016 Jun;33:54-62. doi: 10.1016/j.tiv.2016.02.011. Epub 2016 Feb 23.
- Light at wavelength 405nm is an effective bactericide. Previous studies showed that exposing mammalian cells to 405nm light at 36J/cm(2) (a bactericidal dose) had no significant effect on normal cell function, although at higher doses (54J/cm(2)), mammalian cell death became evident. This research d
- PMID 26916085
Japanese Journal
- Protective Effects of Corni Fructus against Advanced Glycation Endproducts and Radical Scavenging
- Park Chan Hum,Tanaka Takashi,Kim Hyun Young,Park Jong Cheol,Yokozawa Takako
- Evidence-Based Complementary and Alternative Medicine 2012, 418953, 2012
- … As well as the results of AGE-inhibiting activity, Corni Fructus extract and iridoid components showed low or no 1,1-diphenyl-2-pycrylhydrazyl (DPPH) radical-scavenging activities, whereas 7-O-galloyl-D-sedoheptulose showed a level comparable to trolox. … Some fractions exerted a higher DPPH radical-scavenging activity compared with trolox and 7-O-galloyl-D-sedoheptulose. … The DPPH radical-scavenging activity was significantly correlated with the AGE-inhibiting activity. …
- NAID 120004754257
- Characterization and Radio-resistant Function of Manganese Superoxide Dismutase of Rubrobacter radiotolerans
- TERATO Hiroaki,SUZUKI Katsuyuki,NISHIOKA Nobuhiro,OKAMOTO Atsushi,SHIMAZAKI TOKUYAMA Yuka,INOUE Yuko,SAITO Takeshi
- Journal of radiation research 52(6), 735-742, 2011-11-16
- … To understand the molecular mechanism of the high radio-resistance, we purified and characterized superoxide dismutase (SOD) of this organism as enzymatic radical scavenger, and then analyzed its genetic information. …
- NAID 10029652943
Related Links
- MLA style: "radical scavenger". Encyclopædia Britannica. Encyclopædia Britannica Online. Encyclopædia Britannica Inc., 2015. Web. 15 Apr. 2015 < http://www.britannica.com/EBchecked/topic/488747/radical-scavenger >. APA ...
- free radical scavenger Free radical inactivator Any compound that reacts with free radicals in a biological system, ↓ free radical-induced damage, and protects against the indirect effects of free radicals produced by ionizing radiation ...
★リンクテーブル★
[★]
- 英
- radical scavenger
- 関
- ラジカルスカベンジャー
[★]
[★]
- (ゴミなどを)取り除く。(場所を)清掃する。(利用できる物を)廃品の中から取り出す。(廃品)から利用できる物を取り出す。(腐肉・厨芥などを)食べる。(不純物を)科学的・物理的に除去する。
[★]
- 関
- curable、free radical、radically
[★]
- 関
- sequestrant