Preparation of three-dimensional photoelectrochemical paper chip and application of three-dimensional photoelectrochemical paper chip in tumor detection
2014
The invention discloses a preparation method for a three-dimensional photoelectrochemical paper chip and a method for measuring six tumor markers in a sample through a photoelectrochemical sensor. A hydrophobic region and a hydrophilic region are formed on paper by adopting a wax printing technology; a corresponding reference electrode and working electrodes are printed on the paper through proper ink; a working region is functionalized for antigen recognition; the prepared paper chip is folded to form a three-electrode system; a buffering solution containing ascorbic acid is dropwise added into a reaction region; under the irradiation of an ultraviolet lamp, the high-sensitivity detection on an object to be measured is realized.
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