English
Serum ima nenadomestljivo vlogo pri rasti in proliferaciji celic v celični kulturi, torej kako ima serum vlogo v celični kulturi in kakšne so zahteve za media bottle embalažo?
Funkcija seruma:
1. Glavne snovi v serumu so beljakovine, albumin itd., ki lahko puferirajo pH medija celične kulture in vzdržujejo osmotski tlak;
2. Vezivne beljakovine, kot sta transferin in protein, ki veže tiroksin, lahko prepoznajo vitamine, lipide, kovine in druge hormone itd. ter se lahko kombinirajo s strupenimi kovinami in pirogeni za razstrupljanje;
3. Fibronektin, fetuin in adhezijski faktorji v fetalnem govejem serumu lahko spodbujajo celično adhezijo in širjenje;
4. Polipeptidi, kot so rastni faktor trombocitov, rastni faktor fibroblastov, epidermalni rastni faktor, rastni faktor živčnih celic, inzulin, insulinu podoben rastni faktor, somatotropin, hidrokortizon itd., lahko podpirajo delitev in proliferacijo celic ter vzdržujejo logaritmično rast celic;
5 . Zaviralci proteaze, kot je makroglobulin, lahko zavirajo proteazo in ščitijo celice pred poškodbami;
6. Serum je bogat tudi z aminokislinami, glukozo, ketokislinami in elementi v sledovih v kombinaciji z beljakovinami, ki so vse pomembne za celično kulturo.
Zahteve za stekleničke za medije:
Serum ima kompleksne sestavine in pomembne funkcije, zato ohranjanje in uporaba serum je zelo pomemben. Pri izbiri plastenk s serumom mora biti telo plastenke na splošno prozorno, brez DNaze, RNaze, pirogena in drugih snovi, ki vplivajo na rast celic, ter zaprto, da se prepreči puščanje. Omeniti velja, da je treba serum na splošno shranjevati v okolju od -5 °C do -20 °C, zato mora tudi material plastenke z medijem izpolnjevati značilnosti odpornosti na nizke temperature.
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.