Submicron scale temperature sensors are crucial for a range of applications,particularly in micro and na-noscale environments.One promising solution involves the use of active whispering gallery mode(WGM)microresonato...Submicron scale temperature sensors are crucial for a range of applications,particularly in micro and na-noscale environments.One promising solution involves the use of active whispering gallery mode(WGM)microresonators.These resonators can be remotely excited and read out using free-space structures,simplifying the process of sensing.In this study,we present a submicron-scale temperature sensor with a remarkable sensitivity up to 185 pm/℃based on a trian-gular MAPbI3 nanoplatelet(NPL)laser.Notably,as temperature changes,the peak wavelength of the laser line shifts lin-early.This unique characteristic allows for precise temperature sensing by tracking the peak wavelength of the NPL laser.The optical modes are confined within the perovskite NPL,which measures just 85 nm in height,due to total internal reflec-tion.Our NPL laser boasts several key features,including a high Q of~2610 and a low laser threshold of about 19.8μJ·cm^(−2).The combination of exceptional sensitivity and ultra-small size makes our WGM device an ideal candidate for integration into systems that demand compact temperature sensors.This advancement paves the way for significant prog-ress in the development of ultrasmall temperature sensors,opening new possibilities across various fields.展开更多
目的考察不同处方的布地奈德肺吸干粉经气管内给药后,在大鼠气管、支气管、细支气管、肺泡等肺内组织中的分布。方法建立高效液相色谱法,用于肺组织中布地奈德浓度的测定,并对所建立方法进行方法学考察,确认方法的专属性、准确性和重现...目的考察不同处方的布地奈德肺吸干粉经气管内给药后,在大鼠气管、支气管、细支气管、肺泡等肺内组织中的分布。方法建立高效液相色谱法,用于肺组织中布地奈德浓度的测定,并对所建立方法进行方法学考察,确认方法的专属性、准确性和重现性;测定了3种不同的布地奈德肺吸干粉微粒,即布地奈德纳米晶(budesonide nanocrystals,BUD-NC)、布地奈德纳米复合微粒(nanocrystal-embedded microparticles of budesonide,BUD-NEM)、市售布地奈德干粉与喷干乳糖的混合物(the mixture of pulmicort turbuhaler and lactose,BUD-PT),经大鼠气管内给药后,在气管、支气管、细支气管及肺泡等不同部位的浓度,考察不同性质处方的肺内组织分布。结果3种处方的肺内组织分布显示出明显差异。其中,BUD-NC在整个肺内的分布比较均匀,BUD-PT则在气管、支气管分布较多,而BUD-NEM在细支气管、肺泡分布较多。结论BUD-NEM在靶部位细支气管分布最多,与BUD-PT相比,具有较优的肺内分布结果;大鼠的肺内分布研究可为药物的处方设计及药动学研究提供依据。展开更多
文摘Submicron scale temperature sensors are crucial for a range of applications,particularly in micro and na-noscale environments.One promising solution involves the use of active whispering gallery mode(WGM)microresonators.These resonators can be remotely excited and read out using free-space structures,simplifying the process of sensing.In this study,we present a submicron-scale temperature sensor with a remarkable sensitivity up to 185 pm/℃based on a trian-gular MAPbI3 nanoplatelet(NPL)laser.Notably,as temperature changes,the peak wavelength of the laser line shifts lin-early.This unique characteristic allows for precise temperature sensing by tracking the peak wavelength of the NPL laser.The optical modes are confined within the perovskite NPL,which measures just 85 nm in height,due to total internal reflec-tion.Our NPL laser boasts several key features,including a high Q of~2610 and a low laser threshold of about 19.8μJ·cm^(−2).The combination of exceptional sensitivity and ultra-small size makes our WGM device an ideal candidate for integration into systems that demand compact temperature sensors.This advancement paves the way for significant prog-ress in the development of ultrasmall temperature sensors,opening new possibilities across various fields.
文摘目的考察不同处方的布地奈德肺吸干粉经气管内给药后,在大鼠气管、支气管、细支气管、肺泡等肺内组织中的分布。方法建立高效液相色谱法,用于肺组织中布地奈德浓度的测定,并对所建立方法进行方法学考察,确认方法的专属性、准确性和重现性;测定了3种不同的布地奈德肺吸干粉微粒,即布地奈德纳米晶(budesonide nanocrystals,BUD-NC)、布地奈德纳米复合微粒(nanocrystal-embedded microparticles of budesonide,BUD-NEM)、市售布地奈德干粉与喷干乳糖的混合物(the mixture of pulmicort turbuhaler and lactose,BUD-PT),经大鼠气管内给药后,在气管、支气管、细支气管及肺泡等不同部位的浓度,考察不同性质处方的肺内组织分布。结果3种处方的肺内组织分布显示出明显差异。其中,BUD-NC在整个肺内的分布比较均匀,BUD-PT则在气管、支气管分布较多,而BUD-NEM在细支气管、肺泡分布较多。结论BUD-NEM在靶部位细支气管分布最多,与BUD-PT相比,具有较优的肺内分布结果;大鼠的肺内分布研究可为药物的处方设计及药动学研究提供依据。
