Long-Lasting Luminol Chemiluminescence Emission with 1,10-Phenanthroline-2,9-dicarboxylic Acid Copper(II) Complex on Paper

Abstract

As most of the known systems are flashtype, long-lasting chemiluminescence (CL) emissions are extremely needed for the application of cold light sources, accurate CL quantitative analysis, and biological mapping. In this work, the flashtype system of luminol was altered to a long lasting CL system just because of the paper substrate. The Cu­(II)-based organic complex was loaded on the paper surface, which can trigger luminol-H2O2 to produce a long lasting CL emission for over 30 min. By using 1,10-phenanthroline-2,9-dicarboxylic acid (PDA) as the ligand, a hexacoordinated Cu­(II)-based organic complex was synthesized by the simple freeze-drying method. It is interesting that the complex morphology can be controlled by adding different amounts of water in the synthesizing procedure. The complex with a certain size can be definitely trapped in the pores of the cellulose. Then, slow diffusion, which can be attributed to the long lasting CL emission, was produced. With the high catalytic activity of the complex, reactive oxygen species from H2O2 was generated and was responsible for the high CL intensity. By using the paper substrate, the flash-type luminol system can be easily transferred to the long-duration CL system without any extra reagent. This long-lasting emission system was used for hydrogen sulfide detection by the CL imaging method. This paper-based sensor has great potential for CL imaging in the clinical field in the future.

A General Route for Chemiluminescence of n-Type Au Nanocrystals

“…Chemiluminescence (CL) is a phenomenon of radiation produced by a chemical reaction without external excitation, which has been widely used for bioassays, imaging, and illumination applications. , The commercial CL bioassay is usually divided into glow and flash fashions. Flash fashion CL occurs quickly, , while glow fashion CL displays a slow kinetic emission curve. , CL for both basic research and commercial bioassay is mainly conducted in the eye-visible region with a molecular luminophore, such as luminol, peroxy oxalate, dioxetane, lucigenin, KMnO 4 , and lophenol . The waveband of molecular CL is limited to 780 nm, ,− and near infrared (NIR) emission is strongly anticipated for CL evolution.…”

“…Flash fashion CL occurs quickly, 3,4 while glow fashion CL displays a slow kinetic emission curve. 5,6 CL for both basic research and commercial bioassay is mainly conducted in the eye-visible region with a molecular luminophore, such as luminol, 7 peroxy oxalate, 8 dioxetane, 9 lucigenin, 10 KMnO 4 , 11 and lophenol. 10 The waveband of molecular CL is limited to 780 nm, 9,12−14 and near infrared (NIR) emission is strongly anticipated for CL evolution.…”

Tetrakis(4-pyridylphenyl)ethylene-based Zinc Metal–Organic Framework with Aggregation-Induced Chemiluminescence Emission on a Paper Platform for Formaldehyde Detection in Breath

“…According to the work of Zang et al, O 2 •– and H 2 O 2 could generate OH • , which explained the source of OH • in this CL system. In the work of Lv et al, O 2 •– could generate H 2 O 2 and 1 O 2 , which supported the existence of 1 O 2 . The mechanism of the Zn-Py-TPE-TCPO system can be seen in Scheme .…”

“…The comparison results in Figure S7 indicated that the above mechanism was suitable for the Zn-Py-TPE-TCPO system. According to the work of Zang et 43 which supported the existence of 1 O 2 . The mechanism of the Zn-Py-TPE-TCPO system can be seen in Scheme 2.…”

A metal–organic framework loaded paper-based chemiluminescence sensor for trace acetone detection in exhaled breath

“…Paper 32 as an appropriate substrate makes great contributions to MOFs' immobilization and provides a sufficient reacting carrier. 33 UiO-66 was synthesized by an in situ method on the paper surface. After acetone was adsorbed by the UiO-66@paper, CL reagents in the liquid phase were added to permeate the whole paper.…”