血管内皮生长因子
血管生成
材料科学
乙二醇
检出限
生物医学工程
多孔性
血管生成
化学
血管内皮生长因子受体
色谱法
癌症研究
医学
内皮干细胞
复合材料
生物化学
有机化学
体外
作者
Mohammad Ali Al-Ameen,Gargi Ghosh
标识
DOI:10.1016/j.bios.2013.05.004
摘要
Vascular endothelial growth factor (VEGF) plays a crucial role in vasculogenesis (blood vessel formation) and angiogenesis (capillary formation from a pre-existing blood vessel). Dysregulation of VEGF has been associated with several diseases including cancer, rheumatoid arthritis, and psoriasis. As a result, serum level of VEGF has important implications as biomarker for different clinical disorders as well as for subsequent therapy monitoring. A simple detection method capable of rapid and sensitive analysis of VEGF in serum of patients with different clinical disorders is of paramount importance. Here, we report the fabrication and utilization of capture-antibody immobilized macro-porous poly(ethylene) glycol diacrylate (PEGDA) hydrogel microspheres for quantitative and reproducible measurement of VEGF. We demonstrate that induction of porosity using PEG porogen improves the sensitivity of this simple hydrogel microsphere based system with a detection limit of 2.5 pg/ml; indicating that the sensitivity of the assay exceeds that of the conventional technologies.
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