Meter-scale chemiluminescent carbon nanodot films for temperature imaging

Abstract

Chemiluminescence (CL), as one class of luminescence driven by chemical reaction, exhibit obvious temperature-dependence in their light emission process. Herein, temperature-dependent CL emission of carbon nanodots (CDs) in the chemical...

Photooxidation triggered ultralong afterglow in carbon nanodots

“…Inspired by chemiluminescence generated by the electron transfer from the chemically induced high-energy intermediate in our previous reports 26,[53][54][55] , long-lifetime intermediates generated through photooxidation reaction have great potential in improving the afterglow duration of nanomaterials. And the photooxidation reaction can be effectively carried out in an oxygen containing environment, so as to prevent water quenching.…”

Nitrogen- and sulfur-doped graphene quantum dots for chemiluminescence

“…7,8 Chemiluminescence (CL) is a light-emitting phenomenon produced by chemical reactions [17][18][19] and has been widely used in cold light sources, biological analysis, chemical detection and so on. 20,21 The CL reaction of GQD originates from the clear energy separations of the surface states. Hence, the energy gaps between the lowest unoccupied molecular orbital (LUMO) and the highest occupied molecular orbital (HOMO) levels in the surface states of GQD are more conducive to the injection of electrons and holes, facilitating the production of CL emissions.…”

“…29 Shan's group established temperature-dependent CL imaging based on the temperature-dependent CL emission of carbon nanodots in the chemical reaction of hydrogen peroxide (H 2 O 2 ) and bis(2,4,5-trichloro-6-carbopentoxyphenyl) oxalate (CPPO). 21 Chen et al proved that a system composed of bis (2,4,6-trichlorophenyl) oxalate (TCPO), fluorescein and H 2 O 2 can enhance the CL of graphene oxide QDs (GOQDs). 30 However, studies of N and S doping effects on GQD PO-CL have not been reported to date.…”

AIE Nanozyme-Based Long Persistent Chemiluminescence and Fluorescence for POCT of Pathogenic Bacteria

“…15,16 Chemiluminescence (CL) offers an alternative way in that it has no requirement for external photoexcitation and is free of autofluorescence and photobleaching. 17,18 Meanwhile, chemiluminescence resonance energy transfer (CRET) between the activated CL substrates and suitable fluorescence acceptor molecules can extend the luminescence range from blue to red to improve the potential application in bioanalysis, bioimaging, and clinical diagnosis. 19,20 It is worthy of noting that most CL systems and CL-based CRET systems present flash type emission that the emission intensity quickly reaches maximum and then significantly decays within seconds.…”

“…Optical sensing has become a vital technique for bioanalysis, noninvasive bioimaging, and real-time visualization of biological events with superior spatiotemporal resolution. – Fluorescence is a common modality of optical sensing that usually requires an excitation light source to light up the fluorescent probes. – However, the external excitation light can cause autofluorescence background and would influence the sensitivity and accuracy, which also brings inconvenience for detection outside a laboratory. , Chemiluminescence (CL) offers an alternative way in that it has no requirement for external photoexcitation and is free of autofluorescence and photobleaching. , Meanwhile, chemiluminescence resonance energy transfer (CRET) between the activated CL substrates and suitable fluorescence acceptor molecules can extend the luminescence range from blue to red to improve the potential application in bioanalysis, bioimaging, and clinical diagnosis. , It is worthy of noting that most CL systems and CL-based CRET systems present flash type emission that the emission intensity quickly reaches maximum and then significantly decays within seconds. , This would cause poor repeatability and accuracy, limiting their potential applications …”