6月15日，在成都举行的2018工业互联网高峰论坛上，航天科工集团正式发布了CMSS云制造支持系统（Cloud Manufacturing Support System），其通过自主建设专用工业App和订阅通用工业App，形成集成化、个性化、可视化的企业云端工作环境...6月15日，在成都举行的2018工业互联网高峰论坛上，航天科工集团正式发布了CMSS云制造支持系统（Cloud Manufacturing Support System），其通过自主建设专用工业App和订阅通用工业App，形成集成化、个性化、可视化的企业云端工作环境。通过建设CMSS，集成工业App，便可整合优势工业应用资源，促进制造业资源的优化配置.展开更多
In this study,cage-like mesoporous silica was used as the carrier to immobilize laccase by a physical approach,followed by encapsulating with chitosan/alginate microcapsule membranes to form microcapsules of immobiliz...In this study,cage-like mesoporous silica was used as the carrier to immobilize laccase by a physical approach,followed by encapsulating with chitosan/alginate microcapsule membranes to form microcapsules of immobilized laccase based on layer-by-layer technology.The relationship between laccase activity recovery/leakage rate and the coating thickness was simultaneously investigated.Because the microcapsule layers have a substantial network of pores,they act as semipermeable membranes,while the laccase immobilized inside the microcapsules acts as a processing plant for degradation of2,4-dichlorophenol.The microcapsules of immobilized laccase were able to degrade 2,4-dichlorophenol within a wide range of 2,4-dichlorophenol concentration,temperature and p H,with mean degradation rate around 62%.Under the optimal conditions,the thermal stability and reusability of immobilized laccase were shown to be improved significantly,as the removal rate and degradation rate remained over 40.2% and 33.8% respectively after 6 cycles of operation.Using mass spectrometry（MS） and nuclear magnetic resonance（NMR）,diisobutyl phthalate and dibutyl phthalate were identified as the products of 2,4-dichlorophenol degradation by the microcapsules of immobilized laccase and laccase immobilized by a physical approach,respectively,further demonstrating the degradation mechanism of 2,4-dichlorophenol by microcapsule-immobilized laccase.展开更多
文摘6月15日，在成都举行的2018工业互联网高峰论坛上，航天科工集团正式发布了CMSS云制造支持系统（Cloud Manufacturing Support System），其通过自主建设专用工业App和订阅通用工业App，形成集成化、个性化、可视化的企业云端工作环境。通过建设CMSS，集成工业App，便可整合优势工业应用资源，促进制造业资源的优化配置.
基金supported by the National Natural Science Foundation of China (20577010,20971043)the Open Project Program of State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,Jilin University (2011-30)
文摘In this study,cage-like mesoporous silica was used as the carrier to immobilize laccase by a physical approach,followed by encapsulating with chitosan/alginate microcapsule membranes to form microcapsules of immobilized laccase based on layer-by-layer technology.The relationship between laccase activity recovery/leakage rate and the coating thickness was simultaneously investigated.Because the microcapsule layers have a substantial network of pores,they act as semipermeable membranes,while the laccase immobilized inside the microcapsules acts as a processing plant for degradation of2,4-dichlorophenol.The microcapsules of immobilized laccase were able to degrade 2,4-dichlorophenol within a wide range of 2,4-dichlorophenol concentration,temperature and p H,with mean degradation rate around 62%.Under the optimal conditions,the thermal stability and reusability of immobilized laccase were shown to be improved significantly,as the removal rate and degradation rate remained over 40.2% and 33.8% respectively after 6 cycles of operation.Using mass spectrometry（MS） and nuclear magnetic resonance（NMR）,diisobutyl phthalate and dibutyl phthalate were identified as the products of 2,4-dichlorophenol degradation by the microcapsules of immobilized laccase and laccase immobilized by a physical approach,respectively,further demonstrating the degradation mechanism of 2,4-dichlorophenol by microcapsule-immobilized laccase.
