Clinica Chimica Acta:一种性能优秀的癌症筛查包可用于早期和急性淋巴细胞白血病检测?

2019-11-23 MedSci MedSci原创

本研究介绍一套用于早期检测急性淋巴细胞白血病(ALL)癌症的生物传感器。

本研究介绍一套用于早期检测急性淋巴细胞白血病(ALL)癌症的生物传感器。这里提出的癌症筛选包包括DNA传感器和aptasensor作为两种主要的生物传感器。两种生物传感器同时使用不仅可以检测突变基因的存在,还可以检测癌症的生物标志物。在目前的工作中,传感器的组合被用来检测作为突变基因的BCR-ABL1和作为癌症的生物标志物的CEA的存在,这种能力使包易于早期和一定程度上检测到急性淋巴细胞白血病。

为了构建DNA传感器和aptasensor,本研究使用了一种由电合成碳量子点和生物合成金纳米颗粒组成的纳米复合材料。这些生物传感器的构建采用四种不同的电化学方法,包括DPV(微分脉冲伏安法)EIS(电化学阻抗谱法)CV(循环伏安法)和计时安培法。

在生物传感器上用作电活性探针的邻苯二酚溶液的峰值电流与目标DNA和目标抗原的浓度的对数线性相关,范围为10 pM100µμM1µpg mL-1 0.001 g mL-1的检出限分别为1.5 pM0.26 pg mL-1,这是相当不错的结果。

原始出处:

Mohammad Mazloum-ArdakaniBehnaz BarazeshA distinguished cancer-screening package containing a DNA sensor and an aptasensor for early and certain detection of acute lymphoblastic leukemia

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    2020-05-18 windight
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