病毒滴定 的英文怎麼說

中文拼音 [bìngdúdīdìng]
病毒滴定 英文
virus titration
  • 病 : Ⅰ名詞1 （疾病; 失去健康的狀態） illness; sickness; disease; malum; nosema; malady; morbus; vitium...
  • 毒 : Ⅰ名詞1 （對生物體有害的性質或物質; 毒物） poison; toxin 2 （毒品） drug; narcotics 3 （姓氏） a s...
  • 滴 : Ⅰ動詞（液體一點一點地向下落） drip Ⅱ名詞（一點一點地向下落的液體） drop; droplet Ⅲ量詞（用於滴下的液體的數量） drop
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 病毒 : [醫學] virus; inframicrobe （濾過性）
  1. In trpsin tolerance assay. this virus could resist to 1 % trpsis at 37 in an hour. in acid tolerance assay, this virus was resistant to ph3. 0 and ph5. 0 at 37 in 2 hours, and the average infection litre of the virus decreased little. in heat assay, at 50, the virus was processed from 5 minutes to 150 minutes and at each condition the viral virulence reduced to some certain degree. among these conditions, when at 50 in 30 minutes. the average infection litre of this virus decreased over 2 tilre. and when al 50 in an hour, cpe of ihis virus disappeared. when time was set for an hour. but with processed in different temperature as 50 60 70, 80, the virus losl the multiplication capacity complelely. in biological assay, we selected different cell lines to cultivate this virus by laking advantage of possesional cells at that time in our laboratory. then we found that fcwf cell line was the most sensitive to dxmv and mdck was the second. with f81 cell line, after passaged for 12 times continuously with low concentration of fcs. the virus could produce cpe. however, with vero cell line. the virus could not procuce any cpe after many passages. the hemagglutination and lumadsorption reaction test proved that this virus had no any reaction to erythrocyte of pig, fowl and cavy. by neutrolizaion assay, dxmv could be identified as a kind of ccv

    理化學研究表明，該病毒為rna病毒，對氯仿、乙醚敏感；胰酶試驗中，經37 、 1小時處理的病毒，仍然能夠在貓源細胞fcwf細胞上生長，並且毒力基本保持不變；耐酸性試驗中，病毒分別在ph5 . 0和ph3 . 0經37作用2小時，毒力僅下降一個滴度；耐熱性試驗中，該病毒在恆定溫度50 ，設定不同時間，從5分鐘到150分鐘，毒力均有不同程度下降，其中， 50作用30分鐘，病毒平均滴度下降2個單位； 50 ， 60分鐘， cpe消失；恆定時間1小時，設定不同溫度（ 50 - 60 - 70 - 80 ） ，病毒在細胞上完全喪失增殖能力， cpe消失。生物學試驗，利用實驗室現有條件，選擇不同的細胞系對該病毒進行培養，發現該病毒對貓源細胞fcwf最敏感； mdck細胞次之； f81細胞經多次傳代，亦可出現cpe ；而vero細胞則不敏感。血凝試驗表明，該病毒對豬、雞、人及豚鼠的紅細胞均無血凝性。
  2. The wells of elisa plate were coated with pab ( 100ng / l ) against h3n2, then phage was added to the wells. after incubation, the wells were washed vigorously with tbst to remove nonbinding phage. phage bound to the antibody were eluted with 0. 2mol / l glycine - hcl ( ph2. 2 ) for 10 min at room temperature and neutrialized with 2mol / l tris - hcl ( ph9. 1 )

    以抗h3n2流感病毒的多克隆抗體（ 100ng l ）包被酶標板，加入制備好的肽庫，用tbst洗去非特異結合的噬菌體，加0 . 2mol l甘氨酸-鹽酸（ ph2 . 2 ） ，室溫放置10min以洗脫特異結合的噬菌體， 2mol ltris - hcl （ ph9 . 1 ）中和后，取2 l噬菌體接種大腸桿菌xl1 - blue菌進行空斑滴定，其餘噬菌體擴增後用于下一輪篩選，共重復3輪淘洗。
  3. Hemadsorbing viruses can be titrated by counting the number of focal areas to which rbcs are absorbed.

    具有血細胞吸附力的病毒滴定，可以通過計算吸附紅細胞的集中區數來完成。
  4. Construction of recombinant adeno - associated virus vector expressing the human tissue kallilrein

    激肽釋放酶腺相關病毒載體的構建及病毒滴度的測定
  5. Once the recombinant virus has been i - dentified, we amplified the p - 1 stock to attain the large scale, high - titer viral stock in order to initiate expression studies. the recombinant angiostatin was produced from spodoptera frugiperda 9 ( sf9 ) insect cells infected by the high titer virus stock we have prepared. the time course for expression of recombinant protein was detected by sds - page and western blot, which can determine the optimal multiplicity of infection ( moi ) and the appropriate time of harvest for the protein

    表達重組蛋白angiostatin ：用制備好的帶有矗s標記的融合性angiostatin基因的高滴度重組桿狀病毒貯存液感染草地貪夜蛾sfg細胞，用sds page電泳和hsternblot對感染不同時間後分泌的重組蛋白做時間表達分析，依此確定最適的感染復數（ moi ）和感染時間，以達到重組蛋白表達水平最適化，而後大規模進行重組蛋白的表達， sds page用來分析重組蛋白， westernblot用來在蛋白表達水平低的情況下檢測表達的特異重組蛋白。
  6. In order to get the soluble recombinant eo protein and inspect the protein expression status convinently, the egfp and eo gene were ligated into baculovirus transfer vector. with the co - transfecting sf9 cells of baculovirus recombinant transfer vector and linearized viral dna, and plaque purification in the posttransfection procedure, the pure recombinant baculovirus were harvested, which infected the sf9 cells for amplifying to generate a p - l stock. in the meantime, the fluorescence microscopy detection indicated expressed egfp protein to confirm the heterogenous protein expression of recombinant baculovirus. the pi - stock from a pure plaque was used to generate a high liter p - 2 stock, which was determined in liter as 1. 14 107pfu / ml by performing a plaque assay. when a volume of p - 2 stock infected the sf9 cells with moi 5 - 10 for expression, the strong fluorescence was obeserved on the day 3 of postinfection

    此外，為了得到可溶性重組eo蛋白並便於觀察重組蛋白的表達情況，我們將egfp基因與eo基因相連插入昆蟲桿狀病毒轉移載體中，與線性桿狀病毒dna共轉染sf9細胞后通過噬斑純化得到純的重組桿狀病毒，將其感染sf9細胞制備p1種子液，同時用熒光顯微鏡觀察綠色熒光蛋白的表達情況剔除表達效果差的重組桿狀病毒。再用p1種子液感染sf9細胞制備高效價的p2種子液。通過病毒液的梯度稀釋和噬斑測定，確定p2種子液的病毒滴度達1 . 14 10 ~ 7pfu ml 。
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