Microfluidic systems provide a powerful platform for preparing,functionalizing,and manipulating nano-/micro-materials.In this review,we summarize the characteristics of state-of-the-art microfluidic techniques and the...Microfluidic systems provide a powerful platform for preparing,functionalizing,and manipulating nano-/micro-materials.In this review,we summarize the characteristics of state-of-the-art microfluidic techniques and their application to processing novel nano-/micro-materials with tunable size,shape,morphology,composition,and properties.A variety of synthesis strategies based on novel microfiuidic devices are presented and compared,including their integration with real-time monitoring,external fields,and automatic feedback control.Novel functional nano-/micro-materials with complex structures have been controllably prepared and post-processed to obtain high-quality products.Strategies for controlling and tuning physical and chemical properties are also examined in terms of the design and function of microfluidic platforms.We provide an outlook on future developments in the processing of nano-/micro-materials by microfluidic technologies.展开更多
The concept of“carbon neutrality”poses a huge challenge for chemical engineering and brings great opportunities for boosting the development of novel technologies to realize carbon offsetting and reduce carbon emiss...The concept of“carbon neutrality”poses a huge challenge for chemical engineering and brings great opportunities for boosting the development of novel technologies to realize carbon offsetting and reduce carbon emissions.Developing high-efficient,low-cost,energy-efficient and eco-friendly microfluidicbased microchemical engineering is of great significance.Such kind of“green microfluidics”can reduce carbon emissions from the source of raw materials and facilitate controllable and intensified microchemical engineering processes,which represents the new power for the transformation and upgrading of chemical engineering industry.Here,a brief review of green microfluidics for achieving carbon neutral microchemical engineering is presented,with specific discussions about the characteristics and feasibility of applying green microfluidics in realizing carbon neutrality.Development of green microfluidic systems are categorized and reviewed,including the construction of microfluidic devices by bio-based substrate materials and by low carbon fabrication methods,and the use of more biocompatible and nondestructive fluidic systems such as aqueous two-phase systems(ATPSs).Moreover,low carbon applications benefit from green microfluidics are summarized,ranging from separation and purification of biomolecules,high-throughput screening of chemicals and drugs,rapid and cost-effective detections,to synthesis of fine chemicals and novel materials.Finally,challenges and perspectives for further advancing green microfluidics in microchemical engineering for carbon neutrality are proposed and discussed.展开更多
建立了气相色谱-质谱法测定茶叶中噻嗪酮残留量的方法。茶叶中残留的噻嗪酮用丙酮-正己烷混合溶剂(1∶1)提取,提取液经Envi-Carb活性碳柱和LC-Alumina N中性氧化铝柱净化,浓缩定容后,直接用气相色谱-质谱进行分析和确证,外标法定量。以H...建立了气相色谱-质谱法测定茶叶中噻嗪酮残留量的方法。茶叶中残留的噻嗪酮用丙酮-正己烷混合溶剂(1∶1)提取,提取液经Envi-Carb活性碳柱和LC-Alumina N中性氧化铝柱净化,浓缩定容后,直接用气相色谱-质谱进行分析和确证,外标法定量。以HP-5MS(30m×0.25mm i. d., 0.25 μm)石英毛细管柱为分离柱,噻嗪酮的分离效果良好。方法的线性范围为0.01～1.00μg/mL,检出限为0.01mg/kg,回收率为81.6％～97.2％,相对标准偏差为3.36％～5.78％。质谱监测离子选m/z为105、140、172、305amu,其强度比约为41∶13∶29∶17。样品前处理采用微量化学技术。展开更多
基金We gratefully ack no wledge the support of the National Nature Science Foundation of China (91334201,21506004,21606008)the State Key Laboratory of Chemical Engineering (SKL-ChE-16A01, SKL-ChE-17A02).
文摘Microfluidic systems provide a powerful platform for preparing,functionalizing,and manipulating nano-/micro-materials.In this review,we summarize the characteristics of state-of-the-art microfluidic techniques and their application to processing novel nano-/micro-materials with tunable size,shape,morphology,composition,and properties.A variety of synthesis strategies based on novel microfiuidic devices are presented and compared,including their integration with real-time monitoring,external fields,and automatic feedback control.Novel functional nano-/micro-materials with complex structures have been controllably prepared and post-processed to obtain high-quality products.Strategies for controlling and tuning physical and chemical properties are also examined in terms of the design and function of microfluidic platforms.We provide an outlook on future developments in the processing of nano-/micro-materials by microfluidic technologies.
基金the supports of the National Science Foundation of China (22008130, 22025801)the China Postdoctoral Science Foundation (2020M682124)+1 种基金the Qingdao Postdoctoral Researchers Applied Research Project Foundation (RZ2000001426)the Scientific Research Foundation for Youth Scholars from Qingdao University (DC1900014265) for this work
文摘The concept of“carbon neutrality”poses a huge challenge for chemical engineering and brings great opportunities for boosting the development of novel technologies to realize carbon offsetting and reduce carbon emissions.Developing high-efficient,low-cost,energy-efficient and eco-friendly microfluidicbased microchemical engineering is of great significance.Such kind of“green microfluidics”can reduce carbon emissions from the source of raw materials and facilitate controllable and intensified microchemical engineering processes,which represents the new power for the transformation and upgrading of chemical engineering industry.Here,a brief review of green microfluidics for achieving carbon neutral microchemical engineering is presented,with specific discussions about the characteristics and feasibility of applying green microfluidics in realizing carbon neutrality.Development of green microfluidic systems are categorized and reviewed,including the construction of microfluidic devices by bio-based substrate materials and by low carbon fabrication methods,and the use of more biocompatible and nondestructive fluidic systems such as aqueous two-phase systems(ATPSs).Moreover,low carbon applications benefit from green microfluidics are summarized,ranging from separation and purification of biomolecules,high-throughput screening of chemicals and drugs,rapid and cost-effective detections,to synthesis of fine chemicals and novel materials.Finally,challenges and perspectives for further advancing green microfluidics in microchemical engineering for carbon neutrality are proposed and discussed.
文摘建立了气相色谱-质谱法测定茶叶中噻嗪酮残留量的方法。茶叶中残留的噻嗪酮用丙酮-正己烷混合溶剂(1∶1)提取,提取液经Envi-Carb活性碳柱和LC-Alumina N中性氧化铝柱净化,浓缩定容后,直接用气相色谱-质谱进行分析和确证,外标法定量。以HP-5MS(30m×0.25mm i. d., 0.25 μm)石英毛细管柱为分离柱,噻嗪酮的分离效果良好。方法的线性范围为0.01～1.00μg/mL,检出限为0.01mg/kg,回收率为81.6％～97.2％,相对标准偏差为3.36％～5.78％。质谱监测离子选m/z为105、140、172、305amu,其强度比约为41∶13∶29∶17。样品前处理采用微量化学技术。
