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One Step Visual Homogeneous Immunoassay of a Rheumatoid Arthritis Biomarker in Serum via Target-Regulated Steric Hindrance and Competitive Recognition.
Anal Chem
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Department of Laboratory Medicine, Clinical Laboratory Medicine Research Center of West China Hospital, Med+X Center for Manufacturing, Department of Rheumatology & Immunology, National Clinical Research Center for Geriatrics, Department of Gynecology of West China Tianfu Hospital, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
Homogeneous analysis techniques offer several advantages as alternatives to heterogeneous immunoassays, such as simplicity and rapidity. In this study, a visual homogeneous immunoassay without a labeling process was developed based on target-induced steric hindrance to regulate competitive recognition mechanism. Specifically, as the analyte concentration varies, the change of microenvironment based on steric hindrance could affect the recognition of Cu by signal probes.
View Article and Find Full Text PDFDevelopment of two recombinase-aided amplification assays combined with lateral flow dipstick (RAA-LFD) and real-time fluorescence (RF-RAA) for the detection of Frog virus 3-like ranaviruses.
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Key Laboratory of Freshwater Aquatic Genetic Resources Ministry of Agriculture and Rural Affairs, Key Laboratory of Exploration and Utilization of Aquatic genetic Resources, Ministry of Education, International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China. Electronic address:
Frog virus 3-like ranaviruses (FV3-like viruses), particularly FV3 (Frog virus 3), represent typical species within the genus Ranavirus, primarily infecting amphibians and reptiles, thereby posing serious threats to aquaculture and biodiversity conservation. We designed a pair of universal primers and a probe targeting the conserved region of the major capsid protein (MCP) genes of FV3-like viruses. By integrating recombinase-aided amplification (RAA) with lateral flow dipstick (LFD) technology and real-time fluorescence (RF) modification, we established RAA-LFD and RF-RAA assays.
View Article and Find Full Text PDFAdvancing neutron imaging techniques to highest resolution with fluorescent nuclear track detectors.
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High Energy Nuclear Physics Laboratory, Cluster for Pioneering Research, RIKEN, Wako, Saitama, 351-0198, Japan.
Neutron imaging is a nondestructive and noninvasive inspection technique with a wide range of potential applications. However, the fundamentals of this technique still need to be improved, one of which involves achieving micrometer scale or even better resolution, which is a challenging task. Recently, a high-resolution neutron imaging device based on fine-grained nuclear emulsions was developed.
View Article and Find Full Text PDFStepwise Lighting Up Gold(I)-Thiolate Complexes from AIE Nanoaggregates to AIEE Nanoprobes with a ZIF-8 Shell for Glucose Biosensing.
Anal Chem
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School of Biomedical Engineering, Shenzhen Key Laboratory for Nano-Biosensing Technology, Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, Marshall Laboratory of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen 518060, China.
Aggregation-induced emission (AIE) or aggregation-induced emission enhancement (AIEE) has endowed gold species with responsive fluorescent properties, favoring their potential applications in sensing, imaging, and therapy. However, it remains an interesting challenge to fabricate fluorophores with both AIE and AIEE effects. Herein, we presented highly luminescent Au(I) thiolate nanocomplex-based biosensors with Zn induced-AIE and zeolite imidazolate framework (ZIF-8) induced-AIEE effects.
View Article and Find Full Text PDFCRISPR analysis based on Pt@MOF dual-modal signal for multichannel fluorescence and visual detection of norovirus.
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Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Military Medical Sciences Academy, Academy of Military Sciences, Tianjin, 300050, China. Electronic address:
Norovirus is a globally prevalent pathogen that causes acute viral gastroenteritis across all age groups, characterized by its high infectivity and low infectious dose. Consequently, the development of rapid, sensitive, and accurate detection technologies for norovirus presents a significant challenge. In this study, we demonstrate a combination of CRISPR-Cas-based reactions with Pt@MOF-linked immunoassay-like assays.
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