Photonic crystal enhanced gold-silver nanoclusters fluorescent sensor for Hg2+ ion

Liu, Rong; Duan, Shanshan; Bao, Lijiao; Wu, Zhaoyang; Zhou, Jun; Yu, Ru‐Qin

doi:10.1016/j.aca.2020.04.011

Cited by 43 publications

(16 citation statements)

References 56 publications

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“…The enhancement of PCs on fluorescence intensity is mainly reflected in its own photon band gap. When the fluorescence emission peak is overlap with the wavelength range of PBG, fluorescence enhancement is generated in the slow photon effect as the main cause, and strongly reduced photon group speed can delay the action between photon and substances, thereby achieving fluorescence enhancement (R. Liu et al., 2020).…”

Section: Applicationsmentioning

confidence: 99%

Advances in functional photonic crystal materials for the analysis of chemical hazards in food

Dai

et al. 2022

Comp Rev Food Sci Food Safe

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Chemical contaminants in food generally include natural toxins (mycotoxins, animal toxins, and phytotoxins), pesticides, veterinary drugs, environmental pollutants, heavy metals, and illegal additives. Developing a low-cost, simple, and rapid detection technology for harmful substances in food is urgently needed. Analytical methods based on different advanced materials have been developed into rapid detection methods for food samples. In particular, photonic crystal (PC) materials have a unique surface periodic structure, structural color, a large surface area, easy integration with photoelectronic and magnetic devices which have great advantages in the development of rapid, low-cost, and highly sensitive analytical methods. This review focuses on the PC materials in the view of their fabrication processes, functionalized recognition components for the specific recognition of hazardous substances, and applications in the separation, enrichment, and detection of chemical hazards in real samples. Suspension array based on three-dimensional PC microspheres by droplet-based microfluidic assembly is a great promising and powerful platform for food safety detection fields. For the PCs selective analysis, biological antibodies, aptamers, and molecularly imprinted polymers (MIPs) could be modified for specific recognition of target substances, particularly MIPs because of their low-cost and easy mass production. Based on these functional PCs, various toxic and hazardous substances can be selectively enriched or recognized in real samples and further quantified in combination of liquid chromatography method or optical detection methods including fluorescence, chemiluminescence, and Raman spectroscopy.

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Section: Applicationsmentioning

confidence: 99%

Advances in functional photonic crystal materials for the analysis of chemical hazards in food

Dai

et al. 2022

Comp Rev Food Sci Food Safe

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“…They have already been widely used in chemical biosensing, biomedical tracing, target analyte detection and other elds owing to their simple operation, stable optical properties, and low toxicity. [33][34][35] Bovine serum albumin-stabilized gold nanoclusters (BSA-AuNCs) are considered one of the excellent uorescent nanomaterials as they have shown satisfactory accuracy and specicity in the detection of various ionic and small-molecule drugs. [36][37][38] The interaction between AAI and BSA has been reported in a preliminary study, demonstrating the quenching effect of BSA.…”

Section: Introductionmentioning

confidence: 99%

The recognition of aristolochic acid I based on fluorescence quenching of bovine serum albumin-stabilized gold nanoclusters

2022

Anal. Methods

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“…The photonic band gap of the prepared photonic crystals structure can be adjusted by changing the radius of the polystyrene (PS) spheres. , Recently, PCs are considered as prospective materials for spontaneous emission amplification and control of light propagation with minimal loss due to their excellent optical adjustment effect on signal intensity. Although PCs structures have been widely used in surface enhanced fluorescence ,− and photocatalysis, their applications in ECL enhancement are rarely reported. In particular, it has not been reported that the PCs structure can simultaneously enhance the ECL signal and reduce the ECL triggered potential.…”

Section: Introductionmentioning

confidence: 99%

Photonic Crystal of Polystyrene Nanomembrane: Signal Amplification and Low Triggered Potential Electrochemiluminescence for Tetracycline Detection

Wang

Zhu

et al. 2021

Anal. Chem.

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In this work, a low triggered potential electrochemiluminescence strategy based on gold-filled photonic crystals (GPCs) electrodes composed of photonic crystals self-assembled with polystyrene spheres and gold nanoparticles embedded in the gaps of the photonic crystals was proposed. The GPCs electrodes served as the detection platform to bind antigen, and Ru(bpy)3 2+-COOH as a luminophore was labeled on the antibody (Ab). Then, Ru(bpy)3 2+-COOH/Ab was connected to the immobilized antigen on the surface of the photonic crystals by the immunoreaction to avoid direct contact with the gold nanoparticles surface. ECL emission can only be initiated by electrochemical oxidation of tripropylamine (TPrA) since Ru(bpy)3 2+-COOH cannot be oxidized directly on the electrode surface. The TPrA· + and TPrA· radicals generated by the oxidation of TPrA can spread to the vicinity of Ru(bpy)3 2+-COOH over a short distance and react with the Ru(bpy)3 2+-COOH, eventually producing ECL emission. The potential of ECL emission caused by TPrA oxidation was about 300 mV lower than that caused by Ru(bpy)3 2+-COOH oxidation because the oxidation potential of TPrA (0.95 V vs SCE) was lower than Ru(bpy)3 2+-COOH (1.25 V vs SCE). Furthermore, the photonic crystals nanomembrane has the capability to enhance electrochemiluminescence. Thereafter, tetracycline antibiotic as a model compound was successfully detected via competitive immunoassay on GPCs electrodes with a detection limit of 0.075 pg/mL (S/N = 3), which has broad application prospects in the field of analysis and detection.

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Photonic crystal enhanced gold-silver nanoclusters fluorescent sensor for Hg2+ ion

Cited by 43 publications

References 56 publications

Advances in functional photonic crystal materials for the analysis of chemical hazards in food

Advances in functional photonic crystal materials for the analysis of chemical hazards in food

The recognition of aristolochic acid I based on fluorescence quenching of bovine serum albumin-stabilized gold nanoclusters

Photonic Crystal of Polystyrene Nanomembrane: Signal Amplification and Low Triggered Potential Electrochemiluminescence for Tetracycline Detection

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