LOCKED APTAMER HAIRPIN INTEGRATED HYBRIDIZATION CHAIN REACTION FOR RAPID, INSTRUMENT-FREE BIOMARKER DETECTION

    公开(公告)号:US20250034621A1

    公开(公告)日:2025-01-30

    申请号:US18782100

    申请日:2024-07-24

    Abstract: In one aspect, the disclosure relates to a universal method for biomarker extraction and detection from clinical samples using magnetic nanoparticles (MNPs) coupled with a locked aptamer-initiator approach. The MNP bound locked aptamer undergoes a conformational change in the presence of the target biomarker and the unfolded initiator triggers a hybridization chain reaction with a structurally stabilized catalytic trimeric triplex DNAzyme hairpin. Amplicons from the hybridization chain reaction can be incubated with hemin to obtain a stable triplex structure that has horseradish peroxidase-like activity in the presence of H2O2 and a substrate molecule. The intensity of the signal is directly proportional to the amount of biomarker present. Binding one or more reagents on a nanoparticle can be coupled with this approach for use in a microfluidic or paper fluidic platform. In any of these aspects, the assay can detect as low as femtogram amounts of biomarker from the clinical sample.

    DIGITAL HUMAN WORKFORCE SOLUTION
    14.
    发明申请

    公开(公告)号:US20250014730A1

    公开(公告)日:2025-01-09

    申请号:US18765535

    申请日:2024-07-08

    Abstract: The digital human workplace solution is deployed in a customer service setting and involves a computer programmed with a digital human that is displayed to interact with the customer and adapt to inputs providing information about the user or the environment. The digital human workforce solution is also programmed to interface with one or more databases of information that can be used during the customer service interaction.

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