A highly efficient molecularly imprinted fluorescence sensor for assessing whole wheat grains by the rapid and sensitive detection of alkylresorcinols

Biosensors and Bioelectronics, Год журнала: 2022, Номер 223, С. 115032 - 115032

Опубликована: Дек. 21, 2022

Язык: Английский

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Rolling Circle Amplification/G‐Quadruplex‐Based Dual‐Signal Ratiometric Electrochemical Aptasensor for Ultrasensitive Detection of Pathogenic Bacteria

ChemElectroChem, Год журнала: 2023, Номер 10(17)

Опубликована: Авг. 3, 2023

Abstract Accurate and efficient detection of pathogenic bacteria plays a crucial role in the diagnosis infectious diseases. However, rapid highly sensitive specific clinical samples remains challenging. In this study, we developed ratiometric dual‐signal electrochemical biosensor for ultrasensitive bacteria, based on an aptamer recognition‐induced rolling circle amplification (RCA)/G‐quadruplex strategy. On surface gold electrode chip, used sequence (P1) conjugated to ferrocene (Fc) capture target bacterium. This released different, previously bound (P2) that initiated RCA/G‐quadruplex cascade, which, presence potassium ions, was able bind indicator methylene blue (MB). We integrated signals from loss Fc appearance MB (I /I FC ratio) quantify concentration. showed excellent performance specificity, with limit 10 CFU/mL. Notably, it great diagnostic potential diseases caused by precise/personalized medicine applications.

Язык: Английский

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Molecularly Imprinted Ratiometric Fluorescent Sensors for Analysis of Pharmaceuticals and Biomarkers

Sensors, Год журнала: 2024, Номер 24(21), С. 7068 - 7068

Опубликована: Ноя. 2, 2024

Currently, analyzing pharmaceuticals and biomarkers is crucial for ensuring medication safety protecting life health, there an urgent need to develop new efficient analytical techniques in view of the limitations traditional methods. Molecularly imprinted ratiometric fluorescent (MI-RFL) sensors have received increasing attention field detection due their high selectivity, sensitivity anti-interference ability, short response time, visualization. This review summarizes recent advances MI-RFL detection. Firstly, fluorescence sources working mechanisms are briefly introduced. On this basis, strategies preparing molecularly polymers, such as dummy template imprinting, nanoimprinting, multi-template stimulus-responsive imprinting strategies, presented. Then, dual- triple-emission types Subsequently, specific applications pharmaceutical analysis highlighted. In addition, innovative point-of-care testing discussed in-depth. Finally, challenges proposed, research outlook development trends prospected.

Язык: Английский

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A novel biomass carbon dots ratiometric fluorescence probe coupled with molecularly imprinted polymer for selective detection of Aflatoxin B1

Food Bioscience, Год журнала: 2024, Номер 61, С. 104685 - 104685

Опубликована: Июль 18, 2024

Язык: Английский

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A tailored ratiometric fluorescent sensor based on CdTe and MgF2 quantum dots for trace N-ethylpentylone detection

Microchimica Acta, Год журнала: 2024, Номер 191(7)

Опубликована: Июнь 3, 2024

Язык: Английский

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Recyclable magnetic ratiometric fluorescence sensor based on Fe3O4-CDs and CdTe for rapid visualized detection brucine in complicated samples

Microchemical Journal, Год журнала: 2024, Номер unknown, С. 112240 - 112240

Опубликована: Ноя. 1, 2024

Язык: Английский

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