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Updated: Aug 15, 2026

Phthalic Acid Ester-Binding DNA Aptamer Selection, Characterization, and Application to an Electrochemical Aptasensor
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选择性检测Pb2+离子基于一个由DNAzymes在结合模式中关闭的石墨烯场效应晶体管

Siyu Zhao1, Jing Yang1, Lu Wang2

  • 1School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China.

Biosensors & bioelectronics
|July 31, 2023
PubMed
概括

使用石墨烯晶体管和DNA探针的新型生物传感器可以检测乳制品中的有毒离子 (Pb (II)). 这种敏感的方法可以快速选更安全的食品.

关键词:
结合模式中的DNA酶.乳制品 乳制品 乳制品石墨烯场效应晶体管的晶体管.Pb(II) 的情况.

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Potentiometry: Membrane Electrodes01:15

Potentiometry: Membrane Electrodes

Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at the...