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  • 2022

    1-7

    標(biao)準(zhun)(zhun)(zhun)菌(jun)株(zhu):由(you)(you)(you)國(guo)(guo)內或(huo)國(guo)(guo)際菌(jun)種保(bao)藏機(ji)構保(bao)藏的(de)(de)(de),遺傳學特(te)性得(de)到(dao)確認和保(bao)證(zheng)并可(ke)追溯(su)的(de)(de)(de)菌(jun)株(zhu)。標(biao)準(zhun)(zhun)(zhun)菌(jun)株(zhu)的(de)(de)(de)來源(yuan)與驗(yan)收1.標(biao)準(zhun)(zhun)(zhun)菌(jun)的(de)(de)(de)來源(yuan)標(biao)準(zhun)(zhun)(zhun)菌(jun)株(zhu)由(you)(you)(you)中(zhong)國(guo)(guo)藥品生(sheng)物制品檢定(ding)所醫學菌(jun)種保(bao)藏中(zhong)心(ChinaMedicalculturecollection,CMCC)提供的(de)(de)(de)冷凍干(gan)燥(zao)菌(jun)種(0代)或(huo)由(you)(you)(you)上級藥檢部門已接種好(hao)的(de)(de)(de)菌(jun)種斜面(3代)。黑(hei)曲霉的(de)(de)(de)0代菌(jun)種為保(bao)存(cun)于含15%甘(gan)油的(de)(de)(de)0.9%無菌(jun)氯化鈉溶液中(zhong)的(de)(de)(de)孢子(zi)懸液冷存(cun)管。中(zhong)國(guo)(guo)藥品生(sheng)物制品檢定(ding)所醫學微生(sheng)物菌(jun)種保(bao)藏管理中(zhong)心提供的(de)(de)(de)冷凍干(gan)燥(zao)菌(jun)種的(de)(de)(de)標(biao)簽CMCC(B)代表細...

  • 2021

    12-16

    來自ATCC的(de)(de)(de)細胞(bao)(bao)(bao)(bao)培養(yang)指(zhi)南(精簡(jian)版(ban))每天對(dui)待細胞(bao)(bao)(bao)(bao)那真是捧在手(shou)里(li)怕碎了(le)(le),含在嘴里(li)怕化了(le)(le),看在眼里(li)怕丟了(le)(le)。如果手(shou)里(li)有一份(fen)來自機(ji)構ATCC的(de)(de)(de)《細胞(bao)(bao)(bao)(bao)培養(yang)指(zhi)南》,養(yang)細胞(bao)(bao)(bao)(bao)可就得(de)心應手(shou)多了(le)(le)。下(xia)面是細胞(bao)(bao)(bao)(bao)培養(yang)指(zhi)南(精簡(jian)版(ban)),值得(de)收藏。綜述細胞(bao)(bao)(bao)(bao)要么在培養(yang)瓶表面貼(tie)壁生長(chang)(錨定依賴性(xing))要么懸浮生長(chang)(非錨定依賴性(xing))。細胞(bao)(bao)(bao)(bao)的(de)(de)(de)生長(chang)和(he)分裂,通常遵循一個由四(si)個階段組(zu)成(cheng)的(de)(de)(de)特征性(xing)增長(chang)模式(shi):停滯期(qi)(qi)(qi),對(dui)數(shu)期(qi)(qi)(qi)(指(zhi)數(shu)期(qi)(qi)(qi)),平(ping)穩期(qi)(qi)(qi)(平(ping)臺(tai)期(qi)(qi)(qi))和(he)衰退期(qi)(qi)(qi)。停滯期(qi)(qi)(qi)——將細胞(bao)(bao)(bao)(bao)接種(zhong)至(zhi)培養(yang)瓶之后,細胞(bao)(bao)(bao)(bao)逐步恢復的(de)(de)(de)同時,緩慢(man)生長(chang)。對(dui)數(shu)期(qi)(qi)(qi)(指(zhi)...

  • 2020

    12-31

    細(xi)(xi)(xi)(xi)胞(bao)(bao)(bao)(bao)株(zhu)(zhu)和細(xi)(xi)(xi)(xi)胞(bao)(bao)(bao)(bao)系(xi)(xi)的(de)區(qu)別(bie),列表(biao)說明(ming)時間(jian):2020/4/10閱(yue)讀:1細(xi)(xi)(xi)(xi)胞(bao)(bao)(bao)(bao)株(zhu)(zhu)和細(xi)(xi)(xi)(xi)胞(bao)(bao)(bao)(bao)系(xi)(xi)的(de)區(qu)別(bie),列表(biao)說明(ming)我來答這(zhe)么龍厄爾尼諾LV.12019-02-24聊聊細(xi)(xi)(xi)(xi)胞(bao)(bao)(bao)(bao)株(zhu)(zhu)和細(xi)(xi)(xi)(xi)胞(bao)(bao)(bao)(bao)系(xi)(xi)的(de)區(qu)別(bie):一(yi)、概念不同1、細(xi)(xi)(xi)(xi)胞(bao)(bao)(bao)(bao)株(zhu)(zhu):細(xi)(xi)(xi)(xi)胞(bao)(bao)(bao)(bao)株(zhu)(zhu)是通過選(xuan)擇法(fa)(fa)或克隆形(xing)成(cheng)法(fa)(fa)從原(yuan)代(dai)培養(yang)(yang)物或細(xi)(xi)(xi)(xi)胞(bao)(bao)(bao)(bao)系(xi)(xi)中獲得具有特殊性質或標志(zhi)物的(de)培養(yang)(yang)物稱為細(xi)(xi)(xi)(xi)胞(bao)(bao)(bao)(bao)株(zhu)(zhu)(CellStrain)。2、細(xi)(xi)(xi)(xi)胞(bao)(bao)(bao)(bao)系(xi)(xi):細(xi)(xi)(xi)(xi)胞(bao)(bao)(bao)(bao)系(xi)(xi)(cellline)指原(yuan)代(dai)細(xi)(xi)(xi)(xi)胞(bao)(bao)(bao)(bao)培養(yang)(yang)物經*傳代(dai)成(cheng)功后所繁殖的(de)細(xi)(xi)(xi)(xi)胞(bao)(bao)(bao)(bao)群體。也指可(ke)長期連續(xu)傳代(dai)的(de)培養(yang)(yang)細(xi)(xi)(xi)(xi)胞(bao)(bao)(bao)(bao)。二、形(xing)成(cheng)方法(fa)(fa)不同1、細(xi)(xi)(xi)(xi)胞(bao)(bao)(bao)(bao)株(zhu)(zhu):通過選(xuan)擇法(fa)(fa)或克隆形(xing)成(cheng)法(fa)(fa)從原(yuan)...

  • 2020

    8-27

    細(xi)(xi)胞(bao)培(pei)養常規方法(fa)1.凍存(cun)細(xi)(xi)胞(bao)的(de)復蘇應遵守慢凍快融的(de)原則(ze)。先(xian)將(jiang)水(shui)浴鍋(guo)調至37-37。5度,取出(chu)凍存(cun)的(de)細(xi)(xi)胞(bao)迅速放入(ru)后(hou)將(jiang)細(xi)(xi)胞(bao)面浸(jin)至水(shui)面以下不斷搖動至融化(hua)。在無菌(jun)臺內(nei)將(jiang)*培(pei)養基(ji)加(jia)入(ru)50ml的(de)小培(pei)養瓶內(nei),約(yue)5ml左(zuo)右(you),然(ran)后(hou)用無菌(jun)吸管從凍存(cun)管內(nei)取出(chu)細(xi)(xi)胞(bao),置(zhi)培(pei)養并內(nei)輕輕搖晃(huang),使細(xi)(xi)胞(bao)均(jun)勻(yun)后(hou)置(zhi)培(pei)養箱內(nei)培(pei)養。2.傳代:對(dui)于貼(tie)壁細(xi)(xi)胞(bao)應先(xian)吸(倒)盡培(pei)養基(ji),吸的(de)越干(gan)凈越好,以免中和(he)后(hou)加(jia)入(ru)的(de)消化(hua)液,使強度減弱(或PBS洗1-3次)。50ml培(pei)養瓶加(jia)入(ru)消化(hua)液約(yue)1-3ml,按此比例進行消化(hua),(根據經驗),晃(huang)...

  • 2020

    7-2

    人(ren)(ren)體細(xi)胞(bao)是(shi)人(ren)(ren)體結(jie)構(gou)和(he)生(sheng)(sheng)理功能(neng)的基(ji)本(ben)(ben)單位,是(shi)生(sheng)(sheng)長、發育的基(ji)礎(chu)。人(ren)(ren)體細(xi)胞(bao)形(xing)態多(duo)樣,有(you)球形(xing)、方形(xing)、柱(zhu)狀形(xing)等。其大(da)小差異(yi)很大(da),大(da)多(duo)數細(xi)胞(bao)直(zhi)(zhi)徑(jing)僅有(you)幾個微米,有(you)的可(ke)達到100微米以上。盡(jin)管細(xi)胞(bao)的形(xing)態、大(da)小各異(yi),但其結(jie)構(gou)基(ji)本(ben)(ben)相同(tong)。人(ren)(ren)體細(xi)胞(bao)約有(you)40萬(wan)億(yi)—60萬(wan)億(yi)個,細(xi)胞(bao)的平均(jun)直(zhi)(zhi)徑(jing)在5—200微米之(zhi)間。除成熟的紅血(xue)球和(he)血(xue)小板外,所有(you)細(xi)胞(bao)都至(zhi)少有(you)一(yi)個細(xi)胞(bao)核(he),是(shi)調節細(xi)胞(bao)生(sheng)(sheng)命活動(dong)、控制分裂、分化,遺傳,變異(yi)的控制中(zhong)心。人(ren)(ren)體由體細(xi)胞(bao)和(he)生(sheng)(sheng)殖細(xi)胞(bao)組成:人(ren)(ren)體細(xi)胞(bao)初(chu)由1個成熟受精卵(luan)細(xi)胞(bao)開始(shi),分裂為2個細(xi)胞(bao),繼...

  • 2020

    6-30

    建議(yi)在無菌(jun)條(tiao)件下(xia)采用(yong)下(xia)列方法進行恢復培(pei)養(yang)。方法一:1、用(yong)浸過(guo)75%酒(jiu)精的(de)(de)(de)脫(tuo)脂棉團(tuan)擦(ca)凈安(an)(an)(an)瓿表(biao)面。2、待安(an)(an)(an)瓿表(biao)面酒(jiu)精揮發后,將安(an)(an)(an)瓿的(de)(de)(de)封口端移至酒(jiu)精燈火焰上加熱(re)(re)。3、用(yong)無菌(jun)水滴(di)至加熱(re)(re)的(de)(de)(de)安(an)(an)(an)瓿頂端使(shi)玻璃破(po)裂。4、用(yong)無菌(jun)鑷子敲開安(an)(an)(an)瓿頂端。5、用(yong)無菌(jun)吸管(guan)加入0、3~0、5ml的(de)(de)(de)液(ye)體培(pei)養(yang)基于(yu)安(an)(an)(an)瓿管(guan)內,使(shi)凍干菌(jun)種溶解(jie)呈(cheng)懸(xuan)浮液(ye)。6、混勻后,將懸(xuan)浮液(ye)移植于(yu)液(ye)體培(pei)養(yang)基中(zhong)或固體瓊(qiong)脂上,在適宜溫(wen)度等條(tiao)件下(xia)培(pei)養(yang)。方法二(er):1、用(yong)三(san)棱(leng)鋼銼(cuo)在封口下(xia)約2cm處橫(heng)銼(cuo)安(an)(an)(an)瓿。2、用(yong)浸過(guo)75%酒(jiu)精的(de)(de)(de)脫(tuo)脂棉團(tuan)擦(ca)凈安(an)(an)(an)瓿表(biao)面。...

  • 2020

    6-28

    1冷(leng)(leng)凍(dong)(dong)管(guan)應如何解(jie)凍(dong)(dong)?取出(chu)(chu)冷(leng)(leng)凍(dong)(dong)管(guan)后,須(xu)立即放入37°C水槽(cao)中(zhong)快速(su)解(jie)凍(dong)(dong),輕搖冷(leng)(leng)凍(dong)(dong)管(guan)使(shi)其在(zai)1分(fen)鐘(zhong)內全部融化,并注意水面不可(ke)超過冷(leng)(leng)凍(dong)(dong)管(guan)蓋沿,否(fou)則易發生污染情形(xing)。另冷(leng)(leng)凍(dong)(dong)管(guan)由液氮桶(tong)中(zhong)取出(chu)(chu)解(jie)凍(dong)(dong)時,必須(xu)注意安全,預防冷(leng)(leng)凍(dong)(dong)管(guan)之爆裂。2細(xi)胞(bao)(bao)(bao)(bao)冷(leng)(leng)凍(dong)(dong)管(guan)解(jie)凍(dong)(dong)培養(yang)時,是否(fou)應馬上去除DMSO?除少數特(te)別注明(ming)對DMSO敏感之細(xi)胞(bao)(bao)(bao)(bao)外(wai),絕(jue)大(da)部分(fen)細(xi)胞(bao)(bao)(bao)(bao)株(包括懸浮性(xing)細(xi)胞(bao)(bao)(bao)(bao)),在(zai)解(jie)凍(dong)(dong)之后,應直(zhi)接放入含有(you)10-15ml新鮮培養(yang)基之培養(yang)角瓶中(zhong),待隔(ge)天(tian)再(zai)置換新鮮培養(yang)基以去除DMSO即可(ke),如此(ci)可(ke)避免(mian)大(da)部分(fen)解(jie)凍(dong)(dong)后細(xi)胞(bao)(bao)(bao)(bao)無(wu)法生長或貼附...

  • 2020

    6-15

    標(biao)(biao)準菌(jun)(jun)(jun)(jun)株(zhu)(zhu)(zhu)是屬(shu)于種屬(shu)鑒定的規范參照(zhao)菌(jun)(jun)(jun)(jun),而質(zhi)控菌(jun)(jun)(jun)(jun)株(zhu)(zhu)(zhu),往往是從功(gong)能或用(yong)(yong)途上講的,通常是以標(biao)(biao)準菌(jun)(jun)(jun)(jun)株(zhu)(zhu)(zhu)用(yong)(yong)來做(zuo)質(zhi)控的。標(biao)(biao)準菌(jun)(jun)(jun)(jun)株(zhu)(zhu)(zhu)使用(yong)(yong)注意(yi)事(shi)項:1、選(xuan)擇合適的培養(yang)基(ji)(ji):勿(wu)使用(yong)(yong)選(xuan)擇性(xing)(xing)(xing)培養(yang)基(ji)(ji)。一般使用(yong)(yong)非選(xuan)擇性(xing)(xing)(xing)的增菌(jun)(jun)(jun)(jun)培養(yang)基(ji)(ji),因(yin)為(wei)微生(sheng)物在選(xuan)擇性(xing)(xing)(xing)培養(yang)基(ji)(ji)中生(sheng)長某些生(sheng)物特(te)性(xing)(xing)(xing)可能丟(diu)失,保藏的菌(jun)(jun)(jun)(jun)種的生(sheng)物特(te)性(xing)(xing)(xing)可能與標(biao)(biao)準菌(jun)(jun)(jun)(jun)株(zhu)(zhu)(zhu)特(te)性(xing)(xing)(xing)不同。2、菌(jun)(jun)(jun)(jun)液(ye)(ye)的濃度:菌(jun)(jun)(jun)(jun)液(ye)(ye)的濃度一般越大,菌(jun)(jun)(jun)(jun)種保存(cun)時(shi)間(jian)越長。保藏時(shi)細菌(jun)(jun)(jun)(jun)常使用(yong)(yong)菌(jun)(jun)(jun)(jun)液(ye)(ye),霉菌(jun)(jun)(jun)(jun)常用(yong)(yong)無菌(jun)(jun)(jun)(jun)水(shui)或生(sheng)理鹽水(shui)制(zhi)備(bei)成的孢子懸液(ye)(ye)。3、甘(gan)油濃度:甘(gan)油終(zhong)濃度一般為(wei)10%~20%。由(you)于甘(gan)油原液(ye)(ye)太粘稠(chou),需...

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