A donor-π-acceptor aggregation-induced emission compound serving as a portable fluorescent sensor for detection and differentiation of methanol and ethanol in the gas phase

Duan, Yuai; Liu, Yang; Han, Hongliang; Zhang, Xunxue; Zhang, Mengyao; Liao, Yi; Han, Tianyu

doi:10.1016/j.saa.2021.119515

Cited by 18 publications

(6 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another sensor film with similar turn-on behavior also was shown in Ref. (Duan et al, 2021), in which the fluorescence spectrum for the two alcohols was similar but the rate of increase was again faster for MeOH. Several additional sensors are summarized in Table 1.…”

Section: Introductionsupporting

confidence: 63%

A Fluorescent Alcohol Biosensor Using a Simple microPAD Based Detection Scheme

et al. 2022

View full text Add to dashboard Cite

A paper-based microfluidic detection device for the detection of ethanol is demonstrated in this work. The method is based on a fluorophore consisting of short-chain conjugated molecular unit susceptible to the protonation of its terminal pyridine groups, along with a carboxyl-functionalized sidechain that acts as a binder and renders it water-soluble. The resulting fluorescent paper device yields large fluorescence changes when exposed to reactions that yield H2O2 in aqueous solutions. Using an enzyme-catalyzed rection that produces H2O2 from ethanol, we developed a two-zone, cut-out paper device containing a reaction zone in which the ethanol-containing analyte is placed, and an adjacent sensor zone where we observe a fluorescence color shift proportional to the ethanol concentration. The limit of detection of the fluidic ethanol biosensor was 0.05 v/v% and the dynamic range was 0.05–2 v/v%. This method was employed to detect the alcohol concentration of consumer vodkas using only a paper sensor and a smartphone camera.

show abstract

Section: Introductionsupporting

confidence: 63%

A Fluorescent Alcohol Biosensor Using a Simple microPAD Based Detection Scheme

et al. 2022

View full text Add to dashboard Cite

show abstract

“…However, reports on fluorescent-based sensing materials show sensitive detection of many organic solvents, including chloroform, DCM, methanol, acetone, tetrahydrofuran (THF), etc. Still, there is a concern over lack of selectivity, fast response, or the need for specific kinds of substrates [ 10 , 11 , 12 , 13 , 14 ]. Moreover, a more reliable, selective, and sensitive technique is needed in a real-time application.…”

Section: Introductionmentioning

confidence: 99%

‘Aggregation-Induced Emission’ Active Mono-Cyclometalated Iridium(III) Complex Mediated Efficient Vapor-Phase Detection of Dichloromethane

2021

View full text Add to dashboard Cite

Selective vapor-phase detection of dichloromethane (DCM) is a challenge, it being a well-known hazardous volatile organic solvent in trace amounts. With this in mind, we have developed an ‘Aggregation-induced Emission’ (AIE) active mono-cyclometalated iridium(III)-based (M1) probe molecule, which detects DCM sensitively and selectively in vapor phase with a response time < 30 s. It reveals a turn-on emission (non-emissive to intense yellow) on exposing DCM vapor directly to the solid M1. The recorded detection limit is 4.9 ppm for DCM vapor with pristine M1. The mechanism of DCM detection was explored. Moreover, the detection of DCM vapor by M1 was extended with a low-cost filter paper as the substrate. The DCM is weakly bound with the probe and can be removed with a mild treatment, so, notably, the probe can be reused.

show abstract

“…23a). 85 The incorporation of a donor diethylamino moiety to phenyl rotor and the acceptor cyano to imine functionalities induced an ICT effect along with AIEgenic behavior. This ICT effect results in a huge bathochromic shift in absorbance and luminescence property from nonpolar to polar solvent via stabilization of the locally excited state to a lower energy charge-transfer (CT) state.…”

Section: Small Moleculesmentioning

confidence: 99%