dry heat sterilization

• 乾熱滅菌

関

heat sterilization

WordNet

1. without a mucous or watery discharge; "a dry cough"; "that rare thing in the wintertime; a small child with a dry nose"
2. become dry or drier; "The laundry dries in the sun" (同)dry out
3. remove the moisture from and make dry; "dry clothes"; "dry hair" (同)dry out
4. a reformer who opposes the use of intoxicating beverages (同)prohibitionist
5. humorously sarcastic or mocking; "dry humor"; "an ironic remark often conveys an intended meaning obliquely"; "an ironic novel"; "an ironical smile"; "with a wry Scottish wit" (同)ironic, ironical, wry
6. lacking interest or stimulation; dull and lifeless; "a dry book"; "a dry lecture filled with trivial details"; "dull and juiceless as only book knowledge can be when it is unrelated to...life"- John Mason Brown (同)juiceless
7. practicing complete abstinence from alcoholic beverages; "hes been dry for ten years"; "no thank you; I happen to be teetotal" (同)teetotal
8. (of food) eaten without a spread or sauce or other garnish; "dry toast"; "dry meat"
9. (of liquor) having a low residual sugar content because of decomposition of sugar during fermentation; "a dry white burgundy"; "a dry Bordeaux"
10. free from liquid or moisture; lacking natural or normal moisture or depleted of water; or no longer wet; "dry land"; "dry clothes"; "a dry climate"; "dry splintery boards"; "a dry river bed"; "the paint is dry"
11. having a large proportion of strong liquor; "a very dry martini is almost straight gin"
12. having no adornment or coloration; "dry facts"; "rattled off the facts in a dry mechanical manner"
13. lacking moisture or volatile components; "dry paint"
14. lacking warmth or emotional involvement; "a dry greeting"; "a dry reading of the lines"; "a dry critique"
15. not producing milk; "a dry cow"
16. not shedding tears; "dry sobs"; "with dry eyes"
17. opposed to or prohibiting the production and sale of alcoholic beverages; "the dry vote led by preachers and bootleggers"; "a dry state"
18. unproductive especially of the expected results; "a dry run"; "a mind dry of new ideas"
19. used of solid substances in contrast with liquid ones; "dry weight"
20. provide with heat; "heat the house"
21. a form of energy that is transferred by a difference in temperature (同)heat energy
22. make hot or hotter; "the sun heats the oceans"; "heat the water on the stove" (同)heat_up
23. gain heat or get hot; "The room heated up quickly" (同)hot up, heat_up
24. the trait of being intensely emotional (同)warmth, passion
25. the sensation caused by heat energy (同)warmth
26. a preliminary race in which the winner advances to a more important race
27. the act of making an organism barren or infertile (unable to reproduce) (同)sterilisation
28. the procedure of making some object free of live bacteria or other microorganisms (usually by heat or chemical means) (同)sterilisation
29. the 5th letter of the Hebrew alphabet
30. marked by emotional heat; vehement; "a heated argument"
31. made warm or hot (`het is a dialectal variant of `heated' (同)heated up, het, het_up

PrepTutorEJDIC

1. 『乾いた』,乾燥した / 『雨の降らない』,日照り続きの / 水のかれた,干上がった / (家畜などが)乳の出ない / 涙の出ない / 液状でない,固形の / のどが乾く,のどが乾いた / (パンが)バター(ジャム)などのついていない;(パン・ケーキが)古い,固くなった / ありのままの,飾りけのない,そっけない / (ユーモア・皮肉などが)さりげない / (ぶどう酒などが)辛口の / 禁酒の,禁酒法実施の / …‘を'『乾かす』《+『名』+『up,』+『up』+『名』》 / (手ぬぐい・ハンカチなどで)〈手・足など〉‘を'ぬぐう,ふく《+『名』+『with』(『on』)+『名』》 / (保存のために)〈食物〉‘を'乾燥させる / 『乾く』,〈水が〉かれる《+『up』(『out』)》
2. 〈U〉『熱さ』,『暑さ』,熱い状態 / 〈U〉熱度,温度 / 〈U〉(家などの)暖房装置 / 〈U〉熱心,熱烈;(物事の)最高潮《+『of』+『名』》 / 〈U〉(エネルギーとしての)熱 / 〈C〉(競技の)1回,1ラウンド / …‘を'『熱する』,暖める《+『up』+『名,』+『名』+『up』》 / …‘を'興奮させる,怒らせる《+『up』+『名,』+『名』+『up』》 / 熱くなる,暖まる《+『up』》
3. （雌の）発情（in heatとして使う）・金・銭・緊迫、プレッシャー、批判、批評、警察の追跡
4. 彼は,彼が / 《指す人の性別が分からないか,または分かる必要のない場合に》その人,あの人,自分 / 《he who(that)の形で》《文》…するものはだれでも / (動物の)おす(雄)
5. 鬼ごっこ(tag,tick,tig)
6. 熱せられた / 興奮した,怒った

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/12/07 11:12:58」(JST)

wiki en

[Wiki en表示]

See also: Sterilization (microbiology)

Dry heat sterilization of an article is one of the earliest forms of sterilization practiced. Dry heat, as the name indicates, utilizes hot air that is either free from water vapour, or has very little of it, and where this moisture plays a minimal or no role in the process of sterilization.

Process

The Dry-Heat sterilization process is accomplished by conduction; that is where heat is absorbed by the exterior surface of an item and then passed inward to the next layer. Eventually, the entire item reaches the proper temperature needed to achieve sterilization. The proper time and temperature for Dry-Heat sterilization is 160°C (320°F) for 2 hours or 170°C (340°F) for 1 hour.^{[citation needed]} Instruments should be dry before sterilization since water will interfere with the process. Dry-heat destroys microorganisms by causing coagulation of proteins.

The presence of moisture, such as in steam sterilization, significantly speeds up heat penetration.

See also: Moist heat sterilization

There are two types of Hot-Air convection (Convection refers to the circulation of heated air within the chamber of the oven) sterilizers:

• Gravity convection
• Mechanical convection

Gravity convection process

As air is heated, it expands and possesses less density (weight per unit volume) than cooler air. Therefore, the heated air rises and displaces the cooler air (the cooler air descends). The method of Dry-heat gravity convection produces inconsistent temperatures within the chamber and has a very slow turn over.

Mechanical convection process

A mechanical convection oven contains a blower that actively forces heated air throghout all areas of the chamber. The flow created by the blower ensures uniform temperatures and the equal transfer of heat throughout the load. For this reason, the mechanical convection oven is the more efficient of the two processes.

Methods

Some of the other methods used are:

• Hot air oven
• Incineration or burning
• Flaming
• Radiation
• Microwave

Effect on microorganisms

Dry heat coagulates the proteins in any organism, causes oxidative free radical damage, causes drying of cells and can even burn them to ashes, as in incineration.

See also

• Sterility assurance level

References

Notes

General References

• Ninemeier J. Central Service Technical Manual (6th ed.). International Association of Healthcare Central Service Materiel Management. p. 159. 

UpToDate Contents

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English Journal

• The effect of sterilization on silk fibroin biomaterial properties.

• Rnjak-Kovacina J1,2, DesRochers TM1,3, Burke KA1,4, Kaplan DL5.
• Macromolecular bioscience.Macromol Biosci.2015 Jun;15(6):861-74. doi: 10.1002/mabi.201500013. Epub 2015 Mar 11.
• The effects of common sterilization techniques on the physical and biological properties of lyophilized silk fibroin sponges are described. Sterile silk fibroin sponges were cast using a pre-sterilized silk fibroin solution under aseptic conditions or post-sterilized via autoclaving, γ radiation, d
• PMID 25761231
• PMID 26028893

• Considerations in the sterile manufacture of polymeric microneedle arrays.

• McCrudden MT1, Alkilani AZ, Courtenay AJ, McCrudden CM, McCloskey B, Walker C, Alshraiedeh N, Lutton RE, Gilmore BF, Woolfson AD, Donnelly RF.
• Drug delivery and translational research.Drug Deliv Transl Res.2015 Feb;5(1):3-14. doi: 10.1007/s13346-014-0211-1.
• We describe, for the first time, considerations in the sterile manufacture of polymeric microneedle arrays. Microneedles (MN) made from dissolving polymeric matrices and loaded with the model drugs ovalbumin (OVA) and ibuprofen sodium and hydrogel-forming MN composed of "super-swelling" polymers and
• PMID 25787335

Japanese Journal

• Production and characterizations of tubes from hornet (Vespa) silk

• Kameda Tsunenori,Aratani Eriko
• Journal of insect biotechnology and sericology 80(3), 109-116, 2011-10-31
• NAID 10030798704

• Effects of Environmental Humidity and Temperature on Sterilization Efficiency of Dielectric Barrier Discharge Plasmas in Atmospheric Pressure Air

• Kikuchi Yusuke,Miyamae Masanori,Nagata Masayoshi [他],Fukumoto Naoyuki
• Jpn J Appl Phys 50(1), 01AH03-01AH03-4, 2011-01-25
• … The inactivation of Bacillus atrophaeus spores by a dielectric barrier discharge (DBD) plasma in atmospheric humid air was investigated in order to develop a low-temperature, low-cost, and high-speed plasma sterilization technique. … The treatment time for sterilization is shorter than those of conventional sterilization methods using ethylene oxide gas and dry heat treatment. …
• NAID 150000055167

• 様式が異なる種子消毒用乾熱器内の温度分布

• 窪田 昌春,白川 隆,西 和文
• 関西病虫害研究会報 (52), 27-34, 2010-05
• NAID 40017190331

Related Links

• Dry heat sterilization | definition of dry heat sterilization by ...

dry heat sterilization Etymology: AS, dryge + haetu + L, sterilis a method of sterilization that uses heated dry air at a temperature of 320 to 356 F (160 to 180 C) for 90 minutes to 3 hours. dry heat sterilization The sterilization of ...

• Dry Heat Sterilization | ATS, Inc. – Sterilization Specialists ...

Dry Heat sterilization should be used only for materials that might be damaged by moist heat or that are impenetrable to moist heat (e.g., powders, petroleum products, sharp instruments). The primary lethal process is considered to ...

Related Pictures

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★リンクテーブル★

リンク元	「乾熱滅菌法」「heat sterilization」
関連記事	「sterilization」「dry」「heat」「drying」「heating」

「乾熱滅菌法」

　　[★]

英

dry heat sterilization, dry air sterilization, dry-heat sterilization

関

消毒、湿熱滅菌法

「heat sterilization」

　　[★]

• 乾熱滅菌

関

dry heat sterilization

「sterilization」

　　[★]

• 滅菌法、滅菌、殺菌、無菌化、不妊法、不妊化、避妊

関

bactericidal、contraception、contraceptive、disinfect、disinfection、pasteurization、sterilisation、sterilise、sterilize

　 　

「dry」

　　[★]

• adj.

• 乾いた、乾性の

• v.

• 乾燥させる

関

arid、desiccate、desiccation、drought、drying、exsiccation

　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　

「heat」

　　[★]

• n.

• 熱、(生物)発情、発情期

• v.

• 加熱する、加温する

関

estrous、estrus、heating、hot、rewarming

　 　 　 　 　 　 　 　 　

「drying」

　　[★]

• n.

• 乾燥、除湿

関

arid、desiccate、desiccation、drought、dry、exsiccation、moisture absorption

　

「heating」

　　[★]

• n.

• 加温

関

heat、rewarming