摘要：目的基于核酸适体和磁珠，提出一种检测肿瘤标志物血管内皮生长因子(VEGF)的比色方法。
Abstract: Objective to develop a novel colorimetric method for detecting the tumor biomarker vascular endothelial growth factor (VEGF) based on aptamer and magnetic beads.
目的通过测定血管内皮生长因子(VEGF)在肿瘤患者血清及恶性渗出液中的含量，以明确VEGF能否作为肿瘤标志物。
Objective to determine whether vascular endothelial growth factor (VEGF) could be used as a tumor marker by detecting the VEGF levels in serum and effusion from malignant tumor patients.
目的通过测定血管内皮生长因子(VEGF)在肿瘤患者血清及恶性渗出液中的含量，以明确VEGF能否作为肿瘤标志物。
Objective to determine whether vascular endothelial growth factor (VEGF) could be used as a tumor marker by detecting the VEGF levels in serum and effusion from malignant tumor patients.
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