English
Cell culture flasksIs cineál earraí inchaite iad a úsáidtear go coitianta sa phróiseas saothraithe cille. Tá ceanglais níos airde ag an gcomhshaol ag cell growth, agus ní mór do roghnú na n-ábhar inchaite riachtanais saor ó phirogen a chomhlíonadh freisin. Ansin, cad a chiallaíonn saor ó phirogen?
Tá dhá chineál pirogens ann. Is é ceann an pirogen endogenous, a ghníomhaíonn ar lárionad rialaithe teocht an choirp an hypothalamus agus is próitéin é atá in ann teocht an choirp a ardú. Is é ceann amháin pyrogen exogenous, a thagraíonn do shubstaintí eachtracha is féidir a bheith ina chúis le fiabhras. De ghnáth oibríonn sé trí phirogens ingenous a aslú. Tagraíonn an rud a dtugaimid de ghnáth d'earraí inchaite saor ó phirogen, mar fhleascáin shaothraithe cille, do pyrogens exogenous. Tá an cumas teasa is láidre ag bacilli gram-dhiúltacha, agus bacilli gram-dearfach ina dhiaidh sin. Tá cocci gram-dearfach níos laige. Is féidir le múnlaí, giostaí, agus fiú víris pirogens a tháirgeadh freisin. De ghnáth is coimpléasc é an pyrogen a fhoirmítear tríd an meascán de phospholipid polyol agus próitéin. Is é polyol fospholipid lárionad gníomhach an choimpléasc agus tá an éifeacht pyrogenic is láidre aige. Athraíonn a chomhdhéanamh ceimiceach le tréithchineálacha éagsúla. Is é an meáchan móilíneach 5 × 104 go 5 × 105, agus an níos dlúithe an meáchan móilíneach, is amhlaidh is láidre an éifeacht teirmeach. Sa phróiseas cultúir cille, má tá pyrogens sna tomhaltáin, beidh tionchar díreach aige ar fhás agus ar atáirgeadh na gcealla, mar sin ní mór cóireáil speisialta a dhéanamh ar na hearraí inchaite seo chun endotoxins exogenous féideartha a bhaint agus gnáthfhás cealla a chinntiú.
Chomh maith le
, teastaíonn cóireáil speisialta d'earraí inchaite mar mhicripipéid agus leideanna meaitseála a úsáidtear i gcultúr na gceall chun pirogens a dhíchur sular féidir iad a úsáid.cell culture flasksfleascáin chultúir
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.