PVP (polyvinylprolidone) Cov khoom ua pov thawj tshwj xeeb ua rau cov khoom siv tsis zoo rau nws cov ntsiab lus ua haujlwm thiab cov txiaj ntsig tseem ceeb.
Mechanism ntawm Kev Ua
PvP Molecule muaj ob yam hydrophilic (dej-nyiam) thiab hydrophobic (dej-repelling) pawg. hauv ib qho chaw ultrafine:
TusHydrophobic pawgadsorb mus rau saum npoo ntawm cov hmoov pars .
TusHydrophilic pawgtxuas ntxiv sab nraud rau hauv cov dispersion nruab nrab (e {. g. {.
Qhov no ob lub luag haujlwm muab ob qho kev cuam tshuam tseem ceeb:
Tuav Nyom- pvp tsim lub cev lub cev uas tiv thaiv cov lus los ntawm agglomerating .
Kev txhim kho compatibility- hydrothilic sab nraud txheej txhim kho kev faib tawm ruaj khov hauv nruab nrab .
Cov ntsiab lus tseem ceeb
{{0 {}} zoo dua discersion kev ua tau zoo
Ua tau zoo tiv thaiv ultrasfine hmoov agglomeration, kom muaj kev sib tsoo tsis sib xws .
Dav siv nyob rau hauv ceramics, cov ntaub ntawv hluav taws xob, thiab lwm yam kev lag luam los txhim kho cov khoom siv hluav taws xob {}}
2.}} dav zoo
Ua haujlwm tau zoo nrog ntau ultrafine hmoov, suav nrog:
Hlau oxides
Cov pa nanomaterials
Kws Tshuaj Muaj Nqis
Tau tshaj nrog kev sib txawv sib txawv (dej, organic kuab tshuaj, thiab lwm yam} {{1}.
{{0 {}} siab ruaj khov
Zoo heev tshuaj lom thiab thermal ruaj khov ua kom ua tiav kev ua tau zoo nyob rau hauv Varying ib puag ncig .
Resistant rau decomposition lossis kev ua yeeb yam tsis zoo .
{{04. biocompatibility (tseem ceeb rau kev siv tshuaj kho mob)
Tsis muaj tshuaj lom thiab muaj kev nyab xeeb rau kev lom neeg .
Txhim kho yeeb tshuaj solubility thiab bioavailability thaum siv hauv cov tshuaj lis dej dispersion .
Tag
PVP cov qauv qauv qauv ua rau nwsCov tswv yim zoo tshaj plawsRau cov hmoov muaj zog hla kev lag luam-los ntawm cov ntaub ntawv qib siab rau cov ntawv thov biomedical. nws sTeric stabilization, cond compatibility, thiab siab ruaj khovxyuas kom meej txog kev ua tau zoo hauv kev xav tau ib puag ncig.
