Iċ-ċelloli Sf9 huma ċelloli Spodoptera frugiperda, li normalment jintużaw biex jipproduċu diversi proteini u viruses mediċinali, jew għal riċerka bażika. Meta jiġu kkultivati ċelluli sf9, il-konsumabbli tal-kultura taċ-ċelluli użati b'mod komuni huma Flasks tal-kultura taċ-ċelluli.
Ċelloli Sf9 huma derivati mil-Laboratorju tal-Patoloġija tal-Insetti tad-Dipartiment tal-Agrikoltura tal-Istati Uniti u huma derivati miċ-ċellula IPLBSF-21 linja. Iċ-ċelloli huma regolari bil-partiċelli u jistgħu jiġu kkultivati f'sospensjoni jew kultura aderenti. Din iċ-ċellula għandha livell għoli ta 'espressjoni (speċjalment proteini intraċellulari), għandha rata ta' tkabbir aktar mgħaġġla, tiwi effettiva tal-proteini, glikosilazzjoni hija simili għal ċelluli tal-mammiferi, u deglycosylation enżimatika relattivament faċli (għad-determinazzjoni tal-istruttura tal-proteini) Favorevoli), tintuża ħafna fl-espressjoni ta 'V LPs.
Sf-9 ċelluli huma linji taċ-ċelluli semi-aderenti. Fil-medju li fih 10% serum tal-għoġol tal-fetu, ħafna miċ-ċelloli ġeneralment jikbru b'mod aderenti, u parti żgħira hija sospiża. Kabbar f'inkubatur taċ-ċelluli ta' 27°C mingħajr CO2. Normalment jista 'jkun sub-flask għall-passaġġ meta jikber għal densità ta' 80-95%. Id-diġestjoni tat-tripsin mhix meħtieġa waqt il-passaġġ. Permezz ta 'pipetta bil-mod iċ-ċelloli aderenti 5-10 darbiet b'pipetta ta' 1 mL, iċ-ċelloli jistgħu jiġu dilwiti u mgħoddija wara li ma jkunux aderenti. L-ispeċifikazzjonijiet komuni tal-garafini tal-kultura taċ-ċelluli jinkludu 25cm2, 75cm2, 175cm2, 225cm2, eċċ Il-wiċċ ittrattat b'TC huwa adattat għal kultura taċ-ċelluli aderenti, u l-wiċċ mingħajr trattament TC huwa adattat għal kultura ta 'ċelluli ta' sospensjoni, li tista 'tilħaq it-tkabbir u l-kultura. ħtiġijiet ta 'ċelluli sf9.
Meta twettaq operazzjonijiet ta 'passaġġ taċ-ċelluli, huwa rakkomandat li ma tħawwadx il-fliexken tal-kultura taċ-ċelluli b'mod vigoruż biex tiġi evitata l-ħsara taċ-ċelluli u taffettwa l-proċess tal-kultura taċ-ċelluli.
The FAI climbed 5.9 percent year-on-year in the first 11 months of 2018, quickening from the 5.7-percent growth in Jan-Oct, the National Bureau of Statistics (NBS) said Friday in an online statement.
The key indicator of investment, dubbed a major growth driver, hit the bottom in August and has since started to rebound steadily.
In the face of emerging economic challenges home and abroad, China has stepped up efforts to stabilize investment, in particular rolling out measures to motivate private investors and channel funds into infrastructure.
Friday's data showed private investment, accounting for more than 60 percent of the total FAI, expanded by a brisk 8.7 percent.
NBS spokesperson Mao Shengyong said funds into weak economic links registered rapid increases as investment in environmental protection and agriculture jumped 42 percent and 12.5 percent respectively, much faster than the average.
In breakdown, investment in high-tech and equipment manufacturing remained vigorous with 16.1-percent and 11.6-percent increases respectively in the first 11 months. Infrastructure investment gained 3.7 percent, staying flat. Investment in property development rose 9.7 percent, also unchanged.