Ngaba unqumleI-PIPTTE IngcebisoXa iPlycerol? Ndenze ngexesha le-PhD yam, kodwa kwafuneka ndifunde ukuba oku kunyusa ukungachaneki nokungafuni kombhobho wam. Kwaye ukuthembeka xa ndisika inqaku, ngekhe ndaphalaza ngokuthe ngqo i-glycerol kwibhotile kwityhubhu. Ndiye ndatshintsha indlela yam yokuphucula iziphumo zokulima kwaye ndizuze iziphumo ezinokuthenjwa kwaye ndibuyiselwe xa ndisebenza ngotywala be-viscous.
Udidi lolwelo olufuna ingqalelo ekhethekileyo xa imibhobho ingamatywala e-viscous. Ezi zihlala zihlala zisetyenziswa kwilebhu, nokuba yifom emsulwa okanye njengezixhobo ze-buffer. Abameli abadumileyo be-viscous i-fabhuratoratries i-glycerol, i-trion X-100 kunye ne-theboratorations elawula izisombululo ze-viscous yonke imihla.
I-Viscosity ichazwe njengento enamandla, okanye i-kinemity. Kweli nqaku ndigxila kubomi obunamandla botywala ukusukela oko kuchaza intshukumo yolwelo. Inqanaba lokujonga i-viscofity licacisiwe kwi-millipascal ngomzuzwana (i-MPA * s). Endaweni yoko iisampulu ezijikeleze i-200 MPA * s ezinje nge-85% ye-glycerol isenokudluliselwa kusetyenziswa umbhobho womoya we-sushion womoya. Xa usebenzisa ubuchwephesha obukhethekileyo, ukubuyela umva kwepayiphu, i-fubsiration ye-fubble ye-air okanye intsalela kwincam incitshiswa kakhulu kwaye ikhokelela kwiziphumo ezichanekileyo zokuhombisa. Kodwa okwangoku, ayisiyonto ilungileyo esinokukwenza ukuphucula imibhobho yotywala ulwelo (jonga umzobo 1).
Xa uVeksity uyanda, ubunzima buyanda. Izisombululo ze-vimous viscous ukuya kuthi ga kwi-1 000 i-MPA * s ekunzima ukuba idluliselwe kusetyenziswa imibhobho yomoya we-sushion yomoya. Ngenxa yokuxinana okungaphakathi kweemolekyuli, i-fallcous i-fallids ineendlela zokuhamba kancinci kancinci kwaye i-Pipettet kufuneka yenziwe kancinci kancinci kwaye ngononophelo. Ukubuyela umva kwendlela ye-pipett ihlala inganeli ukuba kudluliselwe ulwelo oluchanekileyo kwaye abantu abaninzi bevavanya iisampulu zazo. Esi sicwangciso sithetha nokuthatha uxinzelelo lolwelo kwi-akhawunti kunye neemeko zelebhu ezinje ngokufudumala kunye nobushushu bokubala ivolumu efunekayo. Ke ngoko, ezinye izixhobo zokuhamba kwemibhobho, ngoko ke kubizwa ngokuba zizixhobo zokuhanjiswa, kuyacetyiswa. Ezi zinencam ngepiston ezihlanganisiweyo, njengesirinji. Yiyo loo nto, ulwelo lunokutyhilwa ngokulula kwaye lusasazwe ngelixa kunikezelwa ngokuchanekileyo. Indlela ekhethekileyo ayimfuneko.
Nangona kunjalo, nezixhobo ezifudukayo nezixhobo ezifanelekileyo zifikelela kumda wokuba zizisombululo ze-viscous kakhulu njengobusi obulwela, ulusu okanye ioyile ethile yeoyile. Ezi zinto zifunwa kakhulu zifuna esinye isixhobo esisebenzisa isiseko esisebenzayo esisebenzisa umgaqo oqinisekileyo wokupheliswa kodwa ukongeza sinoyilo olusebenzayo lokujongana nezisombululo ze-viscous. Esi sixhobo sikhethekileyo sithelekiswa neengcebiso ezikhoyo zokufuduka izinto ezikhoyo zokufumana umqobo apho kubalulekile ukutshintshela kwingcebiso yesiqhelo yokusasaza ukuya kwinqaku le-Vicous. Yaboniswa ukuba ukuchaneka kuyandiswa kwaye amandla afunwayo ukuze afuneke kunye nokusasazwa kuncitshiswa xa usebenzisa inqaku elikhethekileyo lotywala. Ngolwazi oluthe kratya kunye nemizekelo engamanzi, nceda ukhuphele inqaku le-intenaton 376 kwintsebenzo eyandisiweyo yeziselo ze-viscous.
IXESHA LOKUQALA: UJan-23 ukuya kwi-2023