FLUORESCENCE RESONANCE ENERGY TRANSFER (FRET) NANOPROBE AND PREPARATION METHOD AND USE THEREOF

    公开(公告)号:US20240003885A1

    公开(公告)日:2024-01-04

    申请号:US17905226

    申请日:2022-05-25

    摘要: The present disclosure provides a fluorescence resonance energy transfer (FRET) nanoprobe and a preparation method and use thereof, and belongs to the technical field of targeted nanomaterials. The FRET nanoprobe includes a loading component and an encapsulating component that encapsulates the loading component, where the loading component includes a carrier and DOX coated in the carrier, and the carrier is a carboxyl-modified hollow mesoporous silica nanoparticle (HMSN); and the encapsulating component includes an RVRR peptide and PAMAM/TPE. In the present disclosure, based on condensation properties of a carboxyl group of the carboxyl-modified HMSN, the RVRR peptide and the small-molecule polymer PAMAM/TPE are encapsulated on an outer surface of the HMSN by a reaction of the RVRR peptide that is specifically responsive to Furin and an amino group modified on a surface of the PAMAM/TPE with the carboxyl group on the surface of the HMSN. Therefore, the DOX is effectively encapsulated.

    CONTROL METHOD FOR CONSENSUS OF AGRICULTURAL MULTI-AGENT SYSTEM BASED ON SAMPLED DATA

    公开(公告)号:US20230393558A1

    公开(公告)日:2023-12-07

    申请号:US18316345

    申请日:2023-05-12

    IPC分类号: G05B19/4155

    摘要: The present invention relates to the field of control engineering, in particular to a distributed control method for consensus of an agricultural multi-agent system based on sampled data, comprising the following steps: for a first-order multi-agent system with fixed directed topology, designing a distributed control protocol based on sampled information in a time delay state; obtaining a dynamic model of the multi-agent system with time delays based on sampled information, and transforming a consensus problem of multiple agents into a stability problem by means of tree transformation; determining constraint conditions on a time delay and a sampling period that the multi-agent system achieves stability, that is, sufficient and necessary conditions that the agents in the multi-agent system achieve average state consensus; and realizing average consensus of the multi-agent system according to the sufficient and necessary conditions.

    Method for preparing modified starch and use thereof

    公开(公告)号:US11603546B2

    公开(公告)日:2023-03-14

    申请号:US16934195

    申请日:2020-07-21

    摘要: Disclosed herein are methods for preparing modified starches, and uses thereof, and relates to the technical field of starch preparation; modifying a gelatinized starch suspension with β-amylase; after inactivating the β-amylase, further modifying with a branching enzyme, after inactivating the branching enzyme, further modifying with pullulanase, after inactivating the pullulanase, precipitating a resulting enzymatic hydrolysate with an alcohol to obtain precipitates; and drying the precipitates to obtain the modified starch. The methods disclosed a starch is modified remarkably, herein substantially increase the number of linear chains with a degree of polymerization DP6-11 in the starch chains and, thus, significantly increase the content of resistant starch in the modified starch—thereby facilitating the use in foods and medicaments.

    INTERLAYER MATERIAL FOR LITHIUM-SULFUR BATTERY, AND LITHIUM-SULFUR BATTERY

    公开(公告)号:US20220328837A1

    公开(公告)日:2022-10-13

    申请号:US17615974

    申请日:2021-05-07

    摘要: An interlayer material for a lithium-sulfur battery, and a lithium-sulfur battery, the interlayer material including electrically conductive MOF modified carbon fiber paper material between the separator and cathode accelerating electron transfer and having catalytic and barrier effect on lithium polysulfides. The paper material is prepared by: pretreatment of the paper by subjecting the carbon fiber paper to hydrophilic treatment; preparation of carbon fiber paper grown with Co3(HITP)2 including: complexing Co2+ and hexaiminotriphenylene on the paper surface, and allowing the product to grow in situ; and removal of structural impurities. The carbon fiber paper provides an electrically conductive substrate ensuring high-speed electrode movement between the cathode and separator; and Co3(HITP)2 grown on the carbon fiber paper provides sufficient polarity for the adsorption of lithium polysulfides, alleviating the shortcomings of the carbon material, and promotes a lithium polysulfides reaction through the catalysis of Co—N4, inhibiting the shuttle effect of the polysulfides.