Corrugated silicon nanocone(SiNC)arrays have been fabricated on a silicon wafer by two polystyrene-sphere-monolayer-masked etching steps in order to create high-performance antireflective coatings.The reflectance was ...Corrugated silicon nanocone(SiNC)arrays have been fabricated on a silicon wafer by two polystyrene-sphere-monolayer-masked etching steps in order to create high-performance antireflective coatings.The reflectance was reduced from above 35%to less than 0.7%in the range 400-1050 nm,and it remained below 0.5%at incidence angles up to 70°at 632.8 nm for both s-and p-polarized light.The fluorinated corrugated SiNC array surface exhibits superhydrophobic properties with a water contact angle of 164°.展开更多
Electrophysiological monitoring under strenuous exercise by using stretchable dry electrodes is vital for healthcare monitoring,prosthetic control,human−machine interfaces and other biomedical applications.However,the...Electrophysiological monitoring under strenuous exercise by using stretchable dry electrodes is vital for healthcare monitoring,prosthetic control,human−machine interfaces and other biomedical applications.However,the existing dry electrodes are not applicable to the strenuous exercise situation that always involves both fast moving and profuse sweating.Herein,we present a nano-thick porous stretchable dry electrode system with high stretchability and water permeability.The system attaches conformably to the skin and stretches with it under Van der Waals forces even at sweating conditions,allowing the detection of electromyogram when moving with an acceleration of 10 g at a sweating rate of 2.8 mg cm^(−2) min^(−1).It is also capable of acquiring electrocardiogram and electroencephalogram signals.The strategy proposed would enable the biomedical studies and related applications with the requirement of stably recording electrophysiological signals under strenuous exercise scenarios.展开更多
基金This work was supported by the National Natural Science Foundation of China(No.20373019)the Program for New Century Excellent Talents in University,and the National Basic Research Program(Nos.2007CB808003 and 2009CB939701).
文摘Corrugated silicon nanocone(SiNC)arrays have been fabricated on a silicon wafer by two polystyrene-sphere-monolayer-masked etching steps in order to create high-performance antireflective coatings.The reflectance was reduced from above 35%to less than 0.7%in the range 400-1050 nm,and it remained below 0.5%at incidence angles up to 70°at 632.8 nm for both s-and p-polarized light.The fluorinated corrugated SiNC array surface exhibits superhydrophobic properties with a water contact angle of 164°.
基金supported by China Postdoctoral Science Foundation (2021M693317)the National Natural Science Foundation of China under Grant (62101545,81927804,U1913601,62003331)+4 种基金Guangdong-Hong Kong-Macao Joint Laboratory of Human Machine Intelligence-Synergy Systems (2019B121205007)the NSFC-Shenzhen Robotics Basic Research Center Program (U2013207)the Natural Science Foundation of Guangdong Province (2018A030313065)the National Key Research and Development Project,MOST (2020YFC2005803)GuangDong Basic and Applied Basic Research Foundation (2020A1515110205).
文摘Electrophysiological monitoring under strenuous exercise by using stretchable dry electrodes is vital for healthcare monitoring,prosthetic control,human−machine interfaces and other biomedical applications.However,the existing dry electrodes are not applicable to the strenuous exercise situation that always involves both fast moving and profuse sweating.Herein,we present a nano-thick porous stretchable dry electrode system with high stretchability and water permeability.The system attaches conformably to the skin and stretches with it under Van der Waals forces even at sweating conditions,allowing the detection of electromyogram when moving with an acceleration of 10 g at a sweating rate of 2.8 mg cm^(−2) min^(−1).It is also capable of acquiring electrocardiogram and electroencephalogram signals.The strategy proposed would enable the biomedical studies and related applications with the requirement of stably recording electrophysiological signals under strenuous exercise scenarios.
