Sensor array and application of sensor array to aided identification of metal ions

A sensor array, metal ion technology, applied in the direction of fluorescence/phosphorescence, color/spectral characteristic measurement, material excitation analysis, etc., can solve the problems of time-consuming, labor-intensive and cost-intensive work

Active Publication Date: 2014-12-10
深圳市乾康医药科技有限公司
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Problems solved by technology

Although a large number of examples of results support this traditional approach, it also has the disadvantage of selectivity
When designing a specific, single sensor for each a

Method used

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  • Sensor array and application of sensor array to aided identification of metal ions
  • Sensor array and application of sensor array to aided identification of metal ions
  • Sensor array and application of sensor array to aided identification of metal ions

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Embodiment 1

[0111] Embodiment 1. Assisted identification of metal ions based on sensor array

[0112] (1) Adjust the concentrations of four kinds of conjugated polyelectrolyte aqueous solutions into light yellow visible to the naked eye, wherein the concentration of the conjugated polyelectrolyte aqueous solution shown in formula I is 565 μM, and the concentration of the conjugated polyelectrolyte aqueous solution shown in formula II is 450 μM, the formula The concentration of the conjugated polyelectrolyte aqueous solution shown in III is 266 μ M, and the concentration of the conjugated polyelectrolyte aqueous solution shown in Formula IV is 464 μ M. Add 2 mL of the four kinds of conjugated polyelectrolyte aqueous solutions to the quartz cuvette respectively. At a characteristic wavelength of 330 At -500nm place, measure their absorption spectrum with ultraviolet-visible spectrophotometer; Get described four kinds of conjugated polyelectrolyte aqueous solutions 2mL respectively and add in...

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Abstract

The invention provides a sensor array and an application of the sensor array to aided identification of metal ions. The sensor array comprises a probe array, wherein the probe array is formed by the following four types of conjugated polyelectrolytes, namely a conjugated polyelectrolyte shown in a formula I, a conjugated polyelectrolyte shown in a formula II, a conjugated polyelectrolyte shown in a formula III and a conjugated polyelectrolyte shown in a formula IV. Due to the adoption of the special photo-physical property of the conjugated polyelectrolytes, reaction signals can be amplified; the four types of conjugated polyelectrolytes are combined to form an array sensor; as each type of conjugated polyelectrolyte has different quenching efficiencies for different metal ions, the collected signals are arranged in sequence; data is processed to obtain a fluorescence intensity ratio in a columnar graph; each type of metal ions has different characteristic graphs; compared with the ordinary specific detection on one type of metal ions by virtue of one probe, the sensor array has the advantages that neither complex molecular design and synthesis nor modification of some fluorophores is needed, and the cost and operation complexity are greatly reduced. The formula I, the formula II, the formula III and the formula IV are as shown in specification.

Description

technical field [0001] The invention belongs to the field of metal ion detection, and in particular relates to a sensor array and its application in metal ion auxiliary identification. Background technique [0002] Metal ions have hidden dangers in the environment and biological health. Nowadays, there is an increasing demand for developing new sensing materials and inventing new metal ion detection strategies. Fluorescence-based methods are well suited due to their sensitivity and simplicity. [0003] Conjugated polyelectrolytes (CPEs) are based on the backbone of conjugated polymers, and the side chains are modified to link water-soluble groups, such as carboxylate, sulfite, phosphate, and alkylamino, etc., to form a class of polymers. Conjugated polyelectrolytes have the advantages of signal amplification effect and easy structure modification, and its delocalized electronic structure gives attractive optical and electrochemical properties, especially their large molar ...

Claims

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Application Information

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IPC IPC(8): G01N21/64G01N21/31C08G61/02
Inventor 张晶珠吴玖骏张存龙吴祎
Owner 深圳市乾康医药科技有限公司
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