Light-harvesting metal-organic framework nanoprobes for ratiometric fluorescence energy transfer-based determination of pH values and temperature

Ding, Zhaoyang; Wang, Chunfei; Wang, Qianqian; Wu, Li; Zhang, Xuanjun

doi:10.1007/s00604-019-3608-1

Cited by 27 publications

(13 citation statements)

References 34 publications

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“…A smart approach was presented by Ding et al 641 who described a light-harvesting MOF nanoprobe for ratiometric fluorescence-based determination of pH values and temperature. The zirconium(IV) derived MOFs are self-assembled and combined with pH-responsive polymers, the MOF acting as the energy donor and the pH-responsive polymer conjugated to fluorophores acting as energy acceptor.…”

Section: Materials With Dual Functionality (Indicator and Host)mentioning

confidence: 99%

Optical Sensing and Imaging of pH Values: Spectroscopies, Materials, and Applications

2020

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This is the first comprehensive review on methods and materials for use in optical sensing of pH values and on applications of such sensors. The Review starts with an introduction that contains subsections on the definition of the pH value, a brief look back on optical methods for sensing of pH, on the effects of ionic strength on pH values and p K a values, on the selectivity, sensitivity, precision, dynamic ranges, and temperature dependence of such sensors. Commonly used optical sensing schemes are covered in a next main chapter, with subsections on methods based on absorptiometry, reflectometry, luminescence, refractive index, surface plasmon resonance, photonic crystals, turbidity, mechanical displacement, interferometry, and solvatochromism. This is followed by sections on absorptiometric and luminescent molecular probes for use pH in sensors. Further large sections cover polymeric hosts and supports, and methods for immobilization of indicator dyes. Further and more specific sections summarize the state of the art in materials with dual functionality (indicator and host), nanomaterials, sensors based on upconversion and 2-photon absorption, multiparameter sensors, imaging, and sensors for extreme pH values. A chapter on the many sensing formats has subsections on planar, fiber optic, evanescent wave, refractive index, surface plasmon resonance and holography based sensor designs, and on distributed sensing. Another section summarizes selected applications in areas, such as medicine, biology, oceanography, bioprocess monitoring, corrosion studies, on the use of pH sensors as transducers in biosensors and chemical sensors, and their integration into flow-injection analyzers, microfluidic devices, and lab-on-a-chip systems. An extra section is devoted to current challenges, with subsections on challenges of general nature and those of specific nature. A concluding section gives an outlook on potential future trends and perspectives.

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Section: Materials With Dual Functionality (Indicator and Host)mentioning

confidence: 99%

Optical Sensing and Imaging of pH Values: Spectroscopies, Materials, and Applications

2020

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“…Organic photoelectric sensing materials have been attracting considerably more attention recently due to their superiorities, i.e., easy and scalable synthesis, adjustable spectral bands, and facilely structural modification, which have been applied widely in the fields of new energy conversion, − nonlinear optics, , optical data storage, , photodynamic therapy, − heavy metal monitoring, , biological sensing, − and environmental monitoring − with excellent performances. However, organic instability would be quite an insurmountable obstacle, which is an urgent problem needing to be solved.…”

Section: Introductionmentioning

confidence: 99%

Efficient Polymer Pendant Approach toward High Stable Organic Fluorophore for Sensing Ultratrace Hg²⁺ with Improved Biological Compatibility and Cell Permeability

et al. 2020

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A convenient and efficient method to eliminate the aggregation effect of organic photoelectric sensing materials and to improve biological compatibility and cell permeability as well was developed by hanging organic fluorophores on a polymer chain, for example, fluorescein fluorophores had been controllably hung on polyacrylamide main chains with a 1:2 stoichiometric ratio by a simple copolymerization strategy. The results showed that introduction of water-soluble bioactive polyacrylamide main chains into fluorescein fluorophores via covalent bonds could effectively improve their optical stability by deteriorating π–π stack and charge-transfer interactions among different fluorophores. More importantly, the resultant materials possessed low toxicity and excellent cell permeability ten times larger than their precursor fluorescein fluorophore, which made it express an especially turn-on fluorescent response to ultratrace Hg2+ both in aqueous and living cells by forming stable 5-member-ring complexes with Hg2+ with a correlation coefficient of 0.997 and a low detection limit of 4.0 × 10–10 mol·L–1. This work provides promising insight into constructing some practical sensing materials for environmentally-friendly biological analyses.

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“…Palladium nitrate (Pd(NO 3 ) 2 ), NB, DNT, DNP, 2,4,6-trinitrotoluene (TNT) standard solution, and 2,4,6-trinitrophenol (PA) were purchased from Macklin Reagent (Shanghai, China). Oligomers OFBB and OFBT were synthesized by the method reported in our recent work …”

Section: Experimental Sectionmentioning

confidence: 99%

“…Oligomers OFBB and OFBT were synthesized by the method reported in our recent work. 39 Synthesis of Zn-OFBB and Zn-OFBT. A solution of Zn(OAc) 2 in DMF (1 mL, 1 × 10 −3 mol/L) was added into the solution of OFBB in DMF (1 mL, 1 × 10 −3 mol/L) dropwise under stirring.…”

Section: ■ Conclusionmentioning

confidence: 99%

Coordination-Directed Assembly of Luminescent Semiconducting Oligomers and Weak Interaction-Induced Morphology Transformation

Zhao

Ding

Wang³

et al. 2019

ACS Omega

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Luminescent semiconducting oligomers (LSOs) have been one of the most popular molecular materials that can be applied in various fields because of their distinctive optical properties. The study of molecular packing and morphological change of oligomers is essential for the rational design of materials and regulation functions. Herein, we report two novel LSOs (OFBB and OFBT) with a slight difference in chemical structures but show a distinct difference in self-assembly behaviors in the coordination-driven process. OFBB forms spherical particles with Zn(II). Compared with OFBB, OFBT has an additional thiazole moiety, which forms spherical particles with Zn(II) and then transforms to a crystalline nanobelt in 2 h. The process and mechanism of the nanosphere and nanobelt formation were investigated in detail. The double S···N interaction between two benzothiazoles in adjacent oligomers played a significant contribution in this dynamic morphology transformation. In addition, the as-prepared two products showed excellent sensing toward nitrobenzene with good selectivity over other nitro-aromatic explosives.

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Light-harvesting metal-organic framework nanoprobes for ratiometric fluorescence energy transfer-based determination of pH values and temperature

Cited by 27 publications

References 34 publications

Optical Sensing and Imaging of pH Values: Spectroscopies, Materials, and Applications

Optical Sensing and Imaging of pH Values: Spectroscopies, Materials, and Applications

Efficient Polymer Pendant Approach toward High Stable Organic Fluorophore for Sensing Ultratrace Hg²⁺ with Improved Biological Compatibility and Cell Permeability

Coordination-Directed Assembly of Luminescent Semiconducting Oligomers and Weak Interaction-Induced Morphology Transformation

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Light-harvesting metal-organic framework nanoprobes for ratiometric fluorescence energy transfer-based determination of pH values and temperature

Cited by 27 publications

References 34 publications

Optical Sensing and Imaging of pH Values: Spectroscopies, Materials, and Applications

Optical Sensing and Imaging of pH Values: Spectroscopies, Materials, and Applications

Efficient Polymer Pendant Approach toward High Stable Organic Fluorophore for Sensing Ultratrace Hg2+ with Improved Biological Compatibility and Cell Permeability

Coordination-Directed Assembly of Luminescent Semiconducting Oligomers and Weak Interaction-Induced Morphology Transformation

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Efficient Polymer Pendant Approach toward High Stable Organic Fluorophore for Sensing Ultratrace Hg²⁺ with Improved Biological Compatibility and Cell Permeability