A cubic boron nitride film-based fluorescent sensor for detecting Hg2+

Liu, W. M.; Zhao, Wanying; Zhang, H. Y.; Wang, P. F.; Chong, Y.M.; Ye, Q.; Zou, Yousheng; Zhang, W. J.; Zapien, Juan Antonio; Bello, I.; Lee, S. T.

doi:10.1063/1.3122929

Cited by 15 publications

(4 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…8 Taking the detection of metal ions for example, the solution approach usually shows higher sensitivity compared with the fluorescent film sensors. 7,9 As fluorescent sensing materials, conjugated polymers (CPs) are considered to be one of the most promising candidates for fluorescent chemosensors due to the signal amplification effect 10 and the versatility in molecular designs. 11 Moreover, CPs have good processability and they can easily fabricate the spin-casting film used for actual sensing device implementation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Phosphonate-Functionalized Polyfluorene Film Sensors for Sensitive Detection of Iron(III) in both Organic and Aqueous Media

Tong

et al. 2010

Macromolecules

View full text Add to dashboard Cite

A novel conjugated polymer (CP) based thin film sensor toward Fe 3þ was prepared by covalent immobilization of a phosphonate-functionalized polyfluorene on glass surface. Contact angle, XPS and steady-state fluorescence measurements proved that the polyfluorene was successfully chemically conjugated on the substrate surface. Like the organic solution and spin-casting film of this polyfluorene, the fluorescence of the immobilized film can be selectively quenched by Fe 3þ in both organic and aqueous solutions. Limit of detection of this film sensor for Fe 3þ could be down to 8.4 ppb in THF solution and 0.14 ppm in aqueous solution, which were among the best results for Fe 3þ sensing by fluorescence film sensors reported so far. Compared with the fluorescence quenching properties of the same polyfluorene in THF solution and in spin-casting film, both quenching constant and detection limit of the immobilized film were improved by 1 order of magnitude, which demonstrated the advantage of the immobilized film fluorescence sensor. In addition, the sensing process is reversible in both organic and aqueous solutions.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, only few fluorescent sensors in thin films can preserve their selectivity, sensitivity and stability in solutions . Taking the detection of metal ions for example, the solution approach usually shows higher sensitivity compared with the fluorescent film sensors. , …”

Section: Introductionmentioning

confidence: 99%

Phosphonate-Functionalized Polyfluorene Film Sensors for Sensitive Detection of Iron(III) in both Organic and Aqueous Media

Tong

et al. 2010

Macromolecules

View full text Add to dashboard Cite

show abstract

“…Reportedly, few-layer graphene excels at detection. Humans and ecosystems alike are particularly vulnerable to mercury's devastating effects [170]. The detection of mercury is critical because it allows for its usage to be restricted or curbed.…”

Section: Boron Nitride (Bn)mentioning

confidence: 99%

Development of Two-Dimensional Functional Nanomaterials for Biosensor Applications: Opportunities, Challenges, and Future Prospects

Kizhepat

Rasal

2023

Nanomaterials

View full text Add to dashboard Cite

New possibilities for the development of biosensors that are ready to be implemented in the field have emerged thanks to the recent progress of functional nanomaterials and the careful engineering of nanostructures. Two-dimensional (2D) nanomaterials have exceptional physical, chemical, highly anisotropic, chemically active, and mechanical capabilities due to their ultra-thin structures. The diversity of the high surface area, layered topologies, and porosity found in 2D nanomaterials makes them amenable to being engineered with surface characteristics that make it possible for targeted identification. By integrating the distinctive features of several varieties of nanostructures and employing them as scaffolds for bimolecular assemblies, biosensing platforms with improved reliability, selectivity, and sensitivity for the identification of a plethora of analytes can be developed. In this review, we compile a number of approaches to using 2D nanomaterials for biomolecule detection. Subsequently, we summarize the advantages and disadvantages of using 2D nanomaterials in biosensing. Finally, both the opportunities and the challenges that exist within this potentially fruitful subject are discussed. This review will assist readers in understanding the synthesis of 2D nanomaterials, their alteration by enzymes and composite materials, and the implementation of 2D material-based biosensors for efficient bioanalysis and disease diagnosis.

show abstract

“…Shea et al, utilized dansyl moiety as a monomer for the synthesis of a new class of macroporous polyamides 11. Liu et al, reported that dansyl chloride‐modified cubic boron nitride (cBN) film sensors showed excellent selectivity and sensitivity to Hg 2+ cations 12. Matyjaszewski and coworkers, reported on the synthesis of polymeric nanocapsules by utilizing dansyl probe as an initiator 13.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of fluorescent, dansyl end‐functionalized PMMA and poly(methyl methacrylate‐b‐phenanthren‐1‐yl‐methacrylate) diblock copolymers, at ambient temperature

Haridharan

Bhandary

Ponnusamy

et al. 2012

J. Polym. Sci. A Polym. Chem.

View full text Add to dashboard Cite

The polymerization of MMA, at ambient temperature, mediated by dansyl chloride is investigated using controlled radical polymerization methods. The solution ATRP results in reasonably controlled polymerization with PDI < 1.3. The SET‐LRP polymerization is less controlled while SET‐RAFT polymerization is controlled producing poly(methyl methacrylate) (PMMA) with the PDI < 1.3. In all the cases, the polymerization rate followed first order kinetics with respect to monomer conversion and the molecular weight of the polymer increased linearly with conversion. The R group in the CTAs do not appear to play a key role in controlling the propagation rate. SET‐RAFT method appears to be a simpler tool to produce methacrylate polymers, under ambient conditions, in comparison with ATRP and SET‐LRP. Fluorescent diblock copolymers, P(MMA‐b‐PhMA), were synthesized. These were highly fluorescent with two distinguishable emission signatures from the dansyl group and the phenanthren‐1‐yl methacrylate block. The fluorescence emission spectra reveal interesting features such as large red shift when compared to the small molecule. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012

show abstract

A cubic boron nitride film-based fluorescent sensor for detecting Hg2+

Cited by 15 publications

References 24 publications

Phosphonate-Functionalized Polyfluorene Film Sensors for Sensitive Detection of Iron(III) in both Organic and Aqueous Media

Phosphonate-Functionalized Polyfluorene Film Sensors for Sensitive Detection of Iron(III) in both Organic and Aqueous Media

Development of Two-Dimensional Functional Nanomaterials for Biosensor Applications: Opportunities, Challenges, and Future Prospects

Synthesis of fluorescent, dansyl end‐functionalized PMMA and poly(methyl methacrylate‐b‐phenanthren‐1‐yl‐methacrylate) diblock copolymers, at ambient temperature

Contact Info

Product

Resources

About