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相关概念视频

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...
Amperometry: Overview01:10

Amperometry: Overview

Amperometry is a technique commonly used to measure the concentration of specific analytes in a solution by monitoring the electric current generated during an electrochemical reaction. It involves applying a constant potential between a working electrode and a reference electrode to measure the resulting current, which is proportional to the concentration of the analyte. The Clark oxygen electrode operates based on this principle of amperometry. It consists of a cathode and an anode enclosed...
Microbial Biosensors01:17

Microbial Biosensors

Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...

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A Method for Selecting Structure-switching Aptamers Applied to a Colorimetric Gold Nanoparticle Assay
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纸质应用传感器:工作原理,检测模式和应用

Anastasios Economou1, Christos Kokkinos1, Leda Bousiakou2

  • 1Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, 15771 Athens, Greece.

Sensors (Basel, Switzerland)
|September 28, 2023
PubMed
概括

本综述探讨了基于纸张的适应传感器,该传感器结合了适应器和纸张设备,以实现低成本的现场检测. 这些适应传感器为各种分析物提供了传统方法的有希望的替代方案.

关键词:
它们是Aptamers.适用于传感器生物传感器生物传感器纸质设备是基于纸质的设备.

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科学领域:

  • 生物医学工程 生物医学工程
  • 分析化学 分析化学
  • 材料科学 材料科学 材料科学

背景情况:

  • 胺是高度特定的基于寡核酸的生物受体,在生物测试和生物传感器中比抗体具有优势.
  • 基于纸质的分析设备 (PAD) 提供了一个低成本的便携式平台,用于现场和护理点诊断.
  • 将aptamers与PADs结合起来,可以创建基于纸张的aptasensors,从而增强诊断能力.

研究的目的:

  • 提供基于纸张的适应传感器的全面概述.
  • 讨论这些设备的制造,工作原理和检测模式.
  • 突出分析物检测中的应用和未来前景.

主要方法:

  • 关于基于纸张的食感器制造和设计的文献综述.
  • 分析作为生物识别元素的阿普坦特性的分析.
  • 讨论在PADs感应中使用的各种检测策略.

主要成果:

  • 基于纸质的适应传感器将适应器与PAD集成,用于敏感和特定的检测.
  • 证明了用于检测离子,小分子,蛋白质和细胞的各种应用.
  • 该审查涵盖制造方法,工作原理和检测模式.

结论:

  • 基于纸质的适应传感器代表了低成本,便携式诊断工具的重大进步.
  • 这些设备为医疗保健应用提供了传统生物测试的可行替代方案.
  • 未来的研究应该解决挑战,并探索提高性能和更广泛的实用性的新前景.