Spontaneous Deposition of FITC-Labeled Dextran into Covalently Assembled (PGMA/PAH)4 Microcapsules
Spontaneous Deposition of FITC-Labeled Dextran into Covalently Assembled (PGMA/PAH)4 Microcapsules
复制标题
FITC 标记的右旋糖酐自发沉积到共价组装 (PGMA/PAH)4 微胶囊中
DOI：
10.1002/macp.200900193
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发表时间：
2009-09-04
影响因子：
2.5
通讯作者：
Shen, Jiacong
中科院分区：
文献类型：
--
作者：
Feng, Zhiqiang;Gao, Changyou;Shen, Jiacong
研究了异硫氰酸荧光素标记的葡聚糖（fitc -葡聚糖）在共价组装聚甲基丙烯酸缩水甘油酯(PGMA)/聚丙烯胺盐酸盐（PAH）微胶囊中的自发沉积，并提出了其机理。微胶囊在fitc -葡聚糖溶液中孵育，从胶囊内部发出强烈的荧光。沉积与分子量（mw）有关，fitc -葡聚糖填充的胶囊数量随着fitc -葡聚糖分子量的增加而增加。此外，通过紫外可见光谱和荧光光谱定量探讨了沉积物质与胶囊中带电物质的相关性。
Spontaneous deposition of fluorescein isothiocyanate labeled dextran (FITC-dextran) in covalently assembled poly(glycidyl methylacrylate) (PGMA)/poly(allylamine hydrochloride) (PAH) microcapsules was studied and its mechanism was proposed. Incubation of the microcapsules in the FITC-dextran solution resulted in strong fluorescence emission from the capsule interiors. The deposition was found to be molecular weight (M w ) dependent and the number of capsules filled with FITC-dextran was increased along with the M W of FITC-dextran. Furthermore, the correlation between the deposited substances and the charged species in the capsules was explored quantitatively through UV-Vis and fluorescence spectroscopy.