2 条结果 关键词:脂多糖 ×

Simple, Fast And Highly Sensitive Detection Of Gram-Negative Bacteria By A Novel Electrical Biosensor.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference 2018 Wu J, Cheng C, Yuan Q, Oueslati R 等 7 人

本文报道一种用于现场检测革兰氏阴性菌的快速、低成本、高灵敏且高特异性电容式生物传感器。该传感器以叉指微电极为换能器,并在电极表面固定脂多糖(LPS)特异性适配体探针,利用 LPS 作为革兰氏阴性菌外膜的特征分子实现特异性识别。检测时,在电极上施加非均匀交流电场,诱导正介电泳(pDEP),将 LPS 颗粒或细菌吸引至电极表面,实现快速...

Rapid, highly sensitive detection of Gram-negative bacteria with lipopolysaccharide based disposable aptasensor.

Biosensors & bioelectronics 2018 Zhang J, Oueslati R, Cheng C, Zhao L 等 7 人

革兰氏阴性菌是环境中常见微生物,快速区分其与革兰氏阳性菌具有重要意义。本文以大肠杆菌(Escherichia coli, E. coli)为模型,报道了一种基于交流电动力学(AC electrokinetics)和电容传感的现场检测革兰氏阴性菌方法。商用微电极经脂多糖(LPS)特异性适配体功能化后,利用介电电泳(DEP)将活菌快速富...