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  • Title: Preparation of a novel colorimetric luminescence sensor strip for the detection of indole-3-acetic acid.
    Author: Liu Y, Dong H, Zhang W, Ye Z, Wang G, Yuan J.
    Journal: Biosens Bioelectron; 2010 Jun 15; 25(10):2375-8. PubMed ID: 20353890.
    Abstract:
    A novel colorimetric luminescence sensor strip for the detection of indole-3-acetic acid (IAA) has been fabricated by using green emissive quantum dots of cadmium telluride (CdTe QDs) as a background layer and a red emissive europium chelate, [4'-(9-anthryl)-2,2':6',2''-terpyridine-6,6''-diyl]bis(methylenenitrilo) tetrakis(acetate)-Eu(3+) (ATTA-Eu(3+)), as a specific sensing layer coated on the surface of glass slide, respectively. The luminescence response of the sensor strip is given by the dramatic changes in emission colors from green to red at different IAA concentrations. This approach provides a simple, rapid, sensitive and accurate method for the detection of IAA without using any special scientific instruments.
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