English
- bu laboratoriyada o'rta miqyosdagi hujayra va to'qimalar madaniyatida muhim rol o'ynaydigan iste'mol qilinadigan hujayra madaniyatining bir turi. Bunday shishaning shisha qopqog'i ikki turga bo'linadi: muhrlangan qopqoq va nafas oladigan qopqoq. Keyin ikkita qopqoq mos ravishda, qanday stsenariy qo'llanilishi mumkin va farq nima? Hujayra madaniyati muhiti steril, mos harorat (37～38℃), osmotik bosim (260～320mmol) ni o'z ichiga oladi. /L), karbonat angidrid va mos pH (7,2 ~ 7,4). Hujayra madaniyati uchun kvadrat kolbalar odatda hujayra madaniyati uchun inkubatorlar yoki issiqxonalar yordamini talab qiladi. Turli xil foydalanish muhitiga ko'ra, qopqoqlar ikki turga bo'linadi: muhrlangan qopqoqlar va nafas oladigan qopqoqlar. hujayra madaniyati flasks
Muhrlash qopqog'i: Bunday qopqoq butunlay muhrlangan. Qopqoqda shamollatish teshiklari yo'q. U asosan inkubatorlar va issiqxonalar kabi karbonat angidridsiz sharoitlarda qo'llaniladi. U yaxshi havo o'tkazuvchanligiga ega va tashqi bakteriyalarning kirib kelishini oldini oladi va hujayralar ko'payishini rag'batlantiradi. Yaxshi o'sish muhitini yarating.
Nafas oladigan qopqoq: Bunday qopqoq shamollatish teshiklari bilan jihozlangan, bu teshiklar muhitdagi karbonat angidridni hujayra madaniyati kvadrat kolbasiga kiritishi va hujayra o'sishi uchun mos o'sish sharoitlarini yaratishi mumkin. Shisha qopqog'ining yuqori qismida yaxshi suv o'tkazmaydigan va nafas oladigan funktsiyalarga ega bo'lgan steril nafas oladigan membrana mavjud. Hujayra madaniyati kvadrat shishasidagi suyuqlik hujayralarning yaxshi o'sish holatini ta'minlaydigan mikrobial to'siq va nafas oladigan membrananing nafas olish qobiliyatiga ta'sir qilmaydi, bu esa hujayralarning yaxshi o'sish holatini ta'minlaydi.
ning ikkita qopqog'i turli madaniyat ehtiyojlarini qondiradi. hujayra o'sishi uchun muhit. Hujayra madaniyati idishlarini tanlashda hujayra o'sishiga ta'sir qilmaslik uchun hujayra madaniyatining o'ziga xos muhitiga mos keladigan qopqoqni tanlashingiz kerak.cell culture flasks Hujayra madaniyati kolbalari
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.