Effect of bentonite prepared by modification methods on property and microparticle retention and drainage 改性方式對膨潤土性能及微粒助留助濾效果的影響
U sing magnetic microparticle as the solid phase and europium nanoparticle as the label , a new trfia of magnetic separation was developed to detected hbsag 98 。另外,以磁性微球作為免疫反應(yīng)的固相,銪納米顆粒作為標(biāo)記物,建立起固相磁分離trfia定量測定hbsag的新方法。
Now , studies on immunogenicity of hp vaccine mainly focus on oral administration with liquid or microparticles . whereas the vaccine solution administrated orally would be digested and decomposed by the low ph and pepsin . though microparticle is a popular form , it has a series of significant problems such as low encapsulation rate and possibility of antigen denaturation as a consequence of expose to organic solvents and high temperature 目前,國內(nèi)外對幽門螺桿菌疫苗的研究僅局限在口服免疫,劑型以溶液或微球?yàn)橹?,眾所周知,液體疫苗口服后易受到胃內(nèi)低ph及胃蛋白酶的破壞;微球雖然是疫苗載體研究的熱點(diǎn),但在制備過程中應(yīng)用的有機(jī)溶劑及高溫操作會破壞疫苗的完整性,降低免疫效果