A chemiluminescence resonance energy transfer for the determination of indolyl acetic acid using luminescent nitrogen-doped carbon dots as acceptors

作者：Liu, Yan; Han, Suqin^*

来源：New Journal of Chemistry, 2018, 42(1): 388-394.

DOI：10.1039/c7nj04215a

• NITRIDE QUANTUM DOTS
• HYDROGEN-PEROXIDE
• SELECTIVE DETECTION
• ENHANCEMENT
• NANODOTS
• PHOTOLUMINESCENCE
• NANOPARTICLES
• IMMUNOASSAY
• DOPAMINE
• DIOXIDE

A chemiluminescence resonance energy transfer (CRET) method was fabricated for the determination of indolyl acetic acid (IAA) by using Ce(IV)-Na2SO3 in a chemiluminescence (CL) reaction as the donor and luminescent nitrogen-doped carbon dots (N-CDs) as the acceptor. The CL intensity from the redox reaction of Ce(IV) and Na2SO3 in acidic medium increased significantly in the presence of N-CDs because the absorption band of N-CDs perfectly overlapped with the luminescence spectra of excited SO2 from the reaction of Ce(IV)-Na2SO3. Further, IAA was observed to inhibit the CL signal of the N-CDs-Ce(IV)-Na(2)S(O)3 system, which made it applicable for the determination of IAA. The linear range was 2.0 x 10(-8)-1.0 x 10(-6) mol L-1 and the detection limit was 5.6 x 10(-9) mol L-1. This work is not only of importance for gaining a better understanding of the unique optical and physical chemistry properties of doping carbon dots with heteroatoms but also has great potential to find CL applications in many fields.

• 出版日期2018-1-7
• 单位山西师范大学