HCHO-reactive molecule with dual-emission-enhancement property for quantitatively detecting HCHO in near 100% water solution

Zhou, Wan; Dong, Hao; Yan, Han; Shi, Cai‐Xia; Yu, Mingming; Wei, Liuhe; Li, Zhanxian

doi:10.1016/j.snb.2014.12.043

Cited by 65 publications

(34 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, many FA uorescent probes have been developed. Li 50 and his team successfully applied a uorescent dye with strong dual-emission uorescence in the detection of FA by introducing an amino group in the benzene ring, such as 2amidyl-3-(3-amidyl-1H-benzo[d]imidazolyl)-pyridine. On the basis of this, they synthesized a sensitive and stable dualemission property uorescent dye 1 from nicotinamide by a three-step procedure in a yield of 86.7%.…”

Section: Schiff Reactivity-based Small Molecular Uorescent Probementioning

confidence: 99%

Fluorescent probes and materials for detecting formaldehyde: from laboratory to indoor for environmental and health monitoring

Yang

Liu

et al. 2017

RSC Adv.

View full text Add to dashboard Cite

show abstract

Section: Schiff Reactivity-based Small Molecular Uorescent Probementioning

confidence: 99%

Fluorescent probes and materials for detecting formaldehyde: from laboratory to indoor for environmental and health monitoring

Yang

Liu

et al. 2017

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…The detection reaction mainly includes the reaction of amino (-NH 2 ) [10][11][12] or hydrazine (-NH-NH 2 ) [13,14] with formaldehyde and the aza-Cope rearrangement reaction [15][16][17][18]. However, since most of the reaction molecules cannot be directly dissolved in pure water, the reactions are carried out in non-neutral aqueous solutions or organic solvents [19][20][21]. This greatly limits their practical applications.…”

Section: Introductionmentioning

confidence: 99%

Fluorescence Probe Based on Graphene Quantum Dots for Selective, Sensitive and Visualized Detection of Formaldehyde in Food

Zhang

et al. 2021

Sustainability

View full text Add to dashboard Cite

Graphene quantum dots (GQDs) have been successfully used as a highly sensitive probe for the sensing of formaldehyde (HCHO) in an aqueous solution. Through static quenching, the probe utilizes the interaction between HCHO and GQDs to trigger the “turn off” fluorescence response, and has good selectivity. The probe can detect HCHO in a pure aqueous solution, and it also can still detect HCHO in a complex environment with a pH range from 4 to 10. The concentration of HCHO and the fluorescence intensity of GQDs show a good linear relationship within the range of HCHO of 0–1 μg/mL, which was much more sensitive than previous reports. The limit of HCHO detection by GQDs is about 0.0515 μg/mL. In addition, we successfully applied it to the actual food inspection. It is proved to be a selective, sensitive and visualized method to check whether the concentration of HCHO in the foods exceeds the regulatory limit, which presents a potential application in food safety testing.

show abstract

“…Mohr [9] and Wei et al [10] have developed a colorimetric method to detect formaldehyde, but this method has a lack of sensitivity. Meanwhile, fluorometric [11][12][13][14][15][16][17] has advantages over other methods, namely simpler, faster, cheaper, a great sensitivity, and it can be used for routine analysis [18][19][20].…”

Section: ■ Introductionmentioning

confidence: 99%

Synthesis of Pyridine Derivative-based Chemosensor for Formaldehyde Detection

et al. 2019

View full text Add to dashboard Cite

Compound of 3,3'-(4-(2-amino-4,5-dimethoxyphenyl)pyridine-2,6-diyl)dianiline (CHP) has been synthesized via three-step synthetic procedure from veratraldehyde as starting material and 4-(4,5-dimethoxy-2-nitrophenyl)-2,6-bis(3-nitrophenyl)pyridine (CHP-1) as an intermediate compound. The CHP-1 was reduced using hydrazine hydrate catalyzed by 10% Pd/C to the final target of CHP. The spectroscopic study revealed that CHP in acetonitrile could detect formaldehyde through fluorescence enhancement and showed color change from yellow to blue under the 365 nm portable ultraviolet lamp as a response. Based on the fluorescence spectra, the emission wavelength of CHP in acetonitrile was shifted from 526 to 480 nm after addition of formaldehyde. Limit detection (LOD), selectivity, sensitivity, and computational study geometry of CHP as a chemosensor for formaldehyde has also been investigated. CHP could also be applied as a test paper for the detection of formaldehyde qualitatively.

show abstract

HCHO-reactive molecule with dual-emission-enhancement property for quantitatively detecting HCHO in near 100% water solution

Cited by 65 publications

References 33 publications

Fluorescent probes and materials for detecting formaldehyde: from laboratory to indoor for environmental and health monitoring

Fluorescent probes and materials for detecting formaldehyde: from laboratory to indoor for environmental and health monitoring

Fluorescence Probe Based on Graphene Quantum Dots for Selective, Sensitive and Visualized Detection of Formaldehyde in Food

Synthesis of Pyridine Derivative-based Chemosensor for Formaldehyde Detection

Contact Info

Product

Resources

About