A Novel Sensitive Luminescence Probe Microspheres for Rapid and Efficient Detection of τ-Fluvalinate in Taihu Lake

Wang, Jixiang; Wang, Yunyun; Qiu, Hao; Sun, Lin; Dai, Xiaohui; Pan, Jianming; Yan, Yongsheng

doi:10.1038/srep46635

Cited by 11 publications

(11 citation statements)

References 61 publications

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“…In recent years, a huge progress has been made regarding the development of new fluorescent nanomaterials such as quantum dots (QDs) 20 nanodiamonds (NDs) 21 , carbon nanodots (C-dots) 22 , graphene oxide (GO) 23 24 , lanthanide-based upconversion nanoparticles (UCNPs) 25 , luminescent metal organic framework (MOFs) 26 , molecularly imprinted polymers (MIPs) 27 , aggregation-induced emission dots (AIE dots) 28 or metal nanoclusters (NCs) 29 .…”

Section: Development Of Fluorescence Oligonucleotide Probes Based On mentioning

confidence: 99%

Development of fluorescence oligonucleotide probes based on cytosine- and guanine-rich sequences

Dembska

Świtalska

Fedoruk-Wyszomirska

2020

Sci Rep

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on DNA. Finally, the obtained solution was further stored in the dark at 4 °C for 2 h to prepare stable DNA-AgNCs. The schematic diagram of the preparation of DNA-AgNCs is presented on Scheme 2. Spectroscopy measurements of fluorescent DNA-AgNCs were performed at 25 °C using 2 µM solutions of a ChONC12 oligonucleotide in 10 mM Tris-CH 3 COOH buffer (pH 7.5) as follows. Absorption spectra of fluorescent DNA-AgNCs. UV-Vis spectra of the DNA-AgNCs were recorded in the spectral range of 200-800 nm by means of Jasco V-750 spectrophotometer (Jasco, Tokyo, Japan). CD spectra of fluorescent DNA-AgNCs. CD measurements were carried out on a Jasco J-820 Spectropolarimeter (Jasco, Tokyo, Japan) with connected a temperature controller (PTC-423L). The CD spectra were obtained by taking the average of three scans in the range of 350-200 nm, with a scan rate of 200 nm/min. Fluorescence spectra. Fluorescence measurements were performed on a Jasco spectrofluorimeter FP-8200 (Jasco, Tokyo, Japan) with 10 nm excitation and 10 nm emission slits and were carried out using 0.4 × 1 cm quartz cuvettes containing 1 ml of solution. Excitation and emission spectra of DNA-AgNCs were recorded in the 200-750 nm range with λ ex = 475 nm/λ em = 560 nm, λ ex = 560 nm/λ em = 610 nm. Sample solution containing 2 μM of fluorescent oligonucleotide in 10 mM Tris-CH 3 COOH buffer (pH 7.5) was equilibrated in a quartz cell at 25 °C for 10 min. Measurements of π-A isotherms and fluorescence spectra at the monolayer interface. To obtain the surface pressure-area (π-A) isotherms for the DODAB (dimethyldioctadecylammonium bromide) monolayer and DODAB/ AgNCs complex at the air-water interface we used the computer-contolled balance system (Langmuir trough small, KSV NIMA, Espoo, Finland) as in Ref. 42. The procedure for creating a monolayer using silver nanoclusters consisted of mixing a DODAB surfactant (5 µL, 1 × 10-3 M in CHCl 3) with a ChONC12 oligonucleotide (5 µL, 1 × 10-3 M in water) (1:1 ratio) and AgNO 3 (6 µl, 1 × 10-2 M in water) and such a mixture was applied to the subphase (after 60 min). At a later stage, freshly prepared NaBH 4 (to reduce Ag + ions) was added behind the barriers. The compression as well as fluorescence measurements of monolayer-silver nanoclusters were carried out analogues as in Ref. 42. Fluorescence emission spectra for ChONC12-AgNCs were recorded in the 400-750 nm range, with the excitation wavelength of 460 nm and 550 nm (λ em = 550 nm/λ em = 610 nm).

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Section: Development Of Fluorescence Oligonucleotide Probes Based On mentioning

confidence: 99%

Development of fluorescence oligonucleotide probes based on cytosine- and guanine-rich sequences

Dembska

Świtalska

Fedoruk-Wyszomirska

2020

Sci Rep

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“…Thirdly, from a functional perspective, the data acquisition, presentation, and analysis functions of the upperlayer central computers largely overlap with those of the middle-layer industrial field computers, especially with the fast progress in the computation capacity of microprocessors and storage capacity of flash chips. Finally, the rapid development of smart devices enabled the integration of signal processing and computation by smart sensors (Mora-Mora et al, 2015;Shabha and Conway, 2016;Wang et al, 2017;Lewis et al, 2018). Novel control systems of bioreactors that may avoid these drawbacks are very promising.…”

Section: Classic Hierarchical Structure Control Systemsmentioning

confidence: 99%

Development of Novel Bioreactor Control Systems Based on Smart Sensors and Actuators

Wang

Chen

et al. 2020

Front. Bioeng. Biotechnol.

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Bioreactors of various forms have been widely used in environmental protection, healthcare, industrial biotechnology, and space exploration. Robust demand in the field stimulated the development of novel designs of bioreactor geometries and process control strategies and the evolution of the physical structure of the control system. After the introduction of digital computers to bioreactor process control, a hierarchical structure control system (HSCS) for bioreactors has become the dominant physical structure, having high efficiency and robustness. However, inherent drawbacks of the HSCS for bioreactors have produced a need for a more consolidated solution of the control system. With the fast progress in sensors, machinery, and information technology, the development of a flat organizational control system (FOCS) for bioreactors based on parallel distributed smart sensors and actuators may provide a more concise solution for process control in bioreactors. Here, we review the evolution of the physical structure of bioreactor control systems and discuss the properties of the novel FOCS for bioreactors and related smart sensors and actuators and their application circumstances, with the hope of further improving the efficiency, robustness, and economics of bioprocess control.

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“…T In an adaptation, silicon oxide nanoparticles covered by fluorescent molecularly imprinted polymer composed from either trimethylolpropane trimethacrylate or 3-(methacryloyloxy)propyltrimethoxysilane and allyl fluorescein were fabricated with imprinting of tfluvalinate [93]. The particles exerted high fluorescence when remained uncovered by t-fluvalinate but the fluorescence significantly dropped when t-fluvalinate was bound to surface of the particles.…”

Section: Sensor Platforms For Connection With Mips and Examples Of Asmentioning

confidence: 99%

Sensors Based on Molecularly Imprinted Polymers

Pohanka¹

2017

International Journal of Electrochemical Science

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Molecularly Imprinted Polymer (MIP) is a polymer having imprinted a molecule on its surface and the surface is able to interact with the molecule chemically equivalent or at least resembling the template molecule. A matrix based on MIP has broad technical applicability in various disciplines like chemical separation, medical use or in analytical chemistry. This paper is devoted to the survey and discussion of MIP use in sensors construction. Materials and analytes are written in details and actual studies in this field are discussed.

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A Novel Sensitive Luminescence Probe Microspheres for Rapid and Efficient Detection of τ-Fluvalinate in Taihu Lake

Cited by 11 publications

References 61 publications

Development of fluorescence oligonucleotide probes based on cytosine- and guanine-rich sequences

Development of fluorescence oligonucleotide probes based on cytosine- and guanine-rich sequences

Development of Novel Bioreactor Control Systems Based on Smart Sensors and Actuators

Sensors Based on Molecularly Imprinted Polymers

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