Developing flexible,lightweight,and portable medical devices for continuous health monitoring requires compact and sustainable energy storage solutions.Traditional devices often rely on bulky wired equipment or batter...Developing flexible,lightweight,and portable medical devices for continuous health monitoring requires compact and sustainable energy storage solutions.Traditional devices often rely on bulky wired equipment or battery-powered systems requiring frequent recharging,limiting practicality.We developed a flexible and stable asymmetric supercapacitor using MXene and transition metal oxide nanocomposite.In half cells,the electrolyte was 1M H_(2)SO_(4);in full cells,a PVA/H_(2)SO_(4)gel was used.Among the composites,Fe_(2)O_(3)@Ti_(3)C_(2)showed superior electrochemical performance due to surface redox reactions enhancing pseudocapacitance.The Fe_(2)O_(3)@Ti_(3)C_(2)||Ti_(3)C_(2)electrode delivered high specific capacitance,excellent power density,remarkable cyclic stability,and mechanical durability over 10,000 bending cycles.The assembled device successfully powered small electronics(LEDs and digital thermometers).Also,integrated with a pressure sensor to monitor human heartbeat signals in real time,with wireless data transmission to a mobile device.This work demonstrates the efficiency and applicability of Fe_(2)O_(3)@Ti_(3)C_(2)flexible supercapacitors for next-generation wearable and biomedical electronics.展开更多
Wearable sensors have made significant progress in sensing physiological and biochemical markers for telehealth.By monitoring vital signs like body temperature,arterial oxygen saturation,and breath rate,wearable senso...Wearable sensors have made significant progress in sensing physiological and biochemical markers for telehealth.By monitoring vital signs like body temperature,arterial oxygen saturation,and breath rate,wearable sensors provide enormous potential for the early detection of diseases.In recent years,significant advancements have been achieved in the development of wearable sensors based on two-dimensional(2D)materials with flexibility,excellent mechanical stability,high sensitivity,and accuracy introducing a new approach to remote and real-time health monitoring.In this review,we outline 2D materials-based wearable sensors and biosensors for a remote health monitoring system.The review focused on five types of wearable sensors,which were classified according to their sensing mechanism,such as pressure,strain,electrochemical,optoelectronic,and temperature sensors.2D material capabilities and their impact on the performance and operation of the wearable sensor are outlined.The fundamental sensing principles and mechanism of wearable sensors,as well as their applications are explored.This review concludes by discussing the remaining obstacles and future opportunities for this emerging telehealth field.We hope that this report will be useful to individuals who want to design new wearable sensors based on 2D materials and it will generate new ideas.展开更多
Due to the emergence of various new infectious(viral/bacteria)diseases,the remote surveillance of infected persons has become most important,especially if hospitals need to isolate infected patients to prevent the spr...Due to the emergence of various new infectious(viral/bacteria)diseases,the remote surveillance of infected persons has become most important,especially if hospitals need to isolate infected patients to prevent the spreading of pathogens to health care personnel.Therefore,we develop a remote health monitoring system by integrating a stretchable asymmetric supercapacitor(SASC)as a portable power source with sensors that can monitor the human physical health condition in real-time and remotely.An abnormal body temperature and breathing rate could indicate a person’s sickness/infection status.Here we integrated FePS3@graphene-based strain sensor and SASC into an all-in-one textile system and wrapped it around the abdomen to continuously monitor the breathing cycle of the person.The real body temperature was recorded by integrating the temperature sensor with the SASC.The proposed system recorded physiological parameters in real-time and when monitored remotely could be employed as a screening tool for monitoring pathogen infection status.展开更多
Soft robots have drawn a lot of interest in the field of human-robot interfaces because they can mimic the propulsion of soft bodies and archive complex tasks that cannot be made by rigid robots such as performing the...Soft robots have drawn a lot of interest in the field of human-robot interfaces because they can mimic the propulsion of soft bodies and archive complex tasks that cannot be made by rigid robots such as performing the complex motion,avoiding collisions by absorbing impacts,and shape adaptation by elastic deformation.Herein,drawing inspiration from creatures in the Cambrian period,such as Hallucigenia,we develop a centimeter-sized soft robot with multiple magnetic legs(referred to as a soft centirobot).This robot is equipped with graphitic carbon nitride(g-C_(3)N_(4))nanosheets to kill biological threats by photogenerated reactive oxygen species under black light illumination.The motion of g-C_(3)N_(4) soft centirobot is controlled by magnetic actuation even in complex wastewater samples(with a relative speed of 0.12 body lengths per second).The magnetic multilegs work as a propeller to walk across and cover large regions,and water disinfection is more efficient than what could be achieved by nano/micrometer scale sheets of g-C_(3)N_(4).Finally,factors affecting the accelerated propulsion of g-C_(3)N_(4) soft centirobot such as design principle,structure geometry,body mass,driving mechanism,and magnetic sensitivity,have been investigated.We envision that such a photoactive 2D material-based integrated centimeter-sized robot shall find application in many areas where pathogen removal is required.展开更多
基金supported by ERDF/ESF project TECHSCALE(No.CZ.02.01.01/00/22_008/0004587)co-funded by the European Union under the REFRESH-Research Excellence For REgion Sustainability and High-tech Industries project number CZ.10.03.01/00/22_003/0000048 via the environment Programme Just Transition+4 种基金funding via project ANGSTROM.Project ANGSTROM was selected in the Joint Transnational Call 2023 of M-ERA.NET 3EU-funded network of 49 funding organisations(Horizon 2020 grant agreement No 958174)This project"Advancing Supercapacitors with Plasma-designed Multifunctional Hybrid Materials"(ANGSTROMno.TQ05000001)is co-financed from the state budget by the Technology Agency of the Czech Republic under the SIGMA Programme within the MERA-NET 3 Call 2023funded under the National Recovery Plan from the European Recovery and Resilience Facility。
文摘Developing flexible,lightweight,and portable medical devices for continuous health monitoring requires compact and sustainable energy storage solutions.Traditional devices often rely on bulky wired equipment or battery-powered systems requiring frequent recharging,limiting practicality.We developed a flexible and stable asymmetric supercapacitor using MXene and transition metal oxide nanocomposite.In half cells,the electrolyte was 1M H_(2)SO_(4);in full cells,a PVA/H_(2)SO_(4)gel was used.Among the composites,Fe_(2)O_(3)@Ti_(3)C_(2)showed superior electrochemical performance due to surface redox reactions enhancing pseudocapacitance.The Fe_(2)O_(3)@Ti_(3)C_(2)||Ti_(3)C_(2)electrode delivered high specific capacitance,excellent power density,remarkable cyclic stability,and mechanical durability over 10,000 bending cycles.The assembled device successfully powered small electronics(LEDs and digital thermometers).Also,integrated with a pressure sensor to monitor human heartbeat signals in real time,with wireless data transmission to a mobile device.This work demonstrates the efficiency and applicability of Fe_(2)O_(3)@Ti_(3)C_(2)flexible supercapacitors for next-generation wearable and biomedical electronics.
基金the project Advanced Functional Nanorobots(Reg.no.CZ.02.1.01/0.0/0.0/15_003/0000444 financed by the EFRR)for support.
文摘Wearable sensors have made significant progress in sensing physiological and biochemical markers for telehealth.By monitoring vital signs like body temperature,arterial oxygen saturation,and breath rate,wearable sensors provide enormous potential for the early detection of diseases.In recent years,significant advancements have been achieved in the development of wearable sensors based on two-dimensional(2D)materials with flexibility,excellent mechanical stability,high sensitivity,and accuracy introducing a new approach to remote and real-time health monitoring.In this review,we outline 2D materials-based wearable sensors and biosensors for a remote health monitoring system.The review focused on five types of wearable sensors,which were classified according to their sensing mechanism,such as pressure,strain,electrochemical,optoelectronic,and temperature sensors.2D material capabilities and their impact on the performance and operation of the wearable sensor are outlined.The fundamental sensing principles and mechanism of wearable sensors,as well as their applications are explored.This review concludes by discussing the remaining obstacles and future opportunities for this emerging telehealth field.We hope that this report will be useful to individuals who want to design new wearable sensors based on 2D materials and it will generate new ideas.
基金the project Advanced Functional Nanorobots (Reg.no.CZ.02.1.01/0.0/0.0/15_003/0000444 financed by the EFRR)for support.
文摘Due to the emergence of various new infectious(viral/bacteria)diseases,the remote surveillance of infected persons has become most important,especially if hospitals need to isolate infected patients to prevent the spreading of pathogens to health care personnel.Therefore,we develop a remote health monitoring system by integrating a stretchable asymmetric supercapacitor(SASC)as a portable power source with sensors that can monitor the human physical health condition in real-time and remotely.An abnormal body temperature and breathing rate could indicate a person’s sickness/infection status.Here we integrated FePS3@graphene-based strain sensor and SASC into an all-in-one textile system and wrapped it around the abdomen to continuously monitor the breathing cycle of the person.The real body temperature was recorded by integrating the temperature sensor with the SASC.The proposed system recorded physiological parameters in real-time and when monitored remotely could be employed as a screening tool for monitoring pathogen infection status.
基金Ministry of Education,Youth,and Sports(MSMT),Grant/Award Number:CZ.02.01.01/00/22_010/0002552Europen Regional Development Fund(EFRR)+2 种基金ERDF/ESF project TECHSCALE,Grant/Award Number:CZ.02.01.01/00/22_008/0004587European Union under the REFRESH-Research Excellence for Region Sustainability and High-tech Industries Project,Grant/Award Number:CZ.10.03.01/00/22_003/0000048MEYS CR,Grant/Award Number:Czech Nano Lab Project(No.LM2023051)。
文摘Soft robots have drawn a lot of interest in the field of human-robot interfaces because they can mimic the propulsion of soft bodies and archive complex tasks that cannot be made by rigid robots such as performing the complex motion,avoiding collisions by absorbing impacts,and shape adaptation by elastic deformation.Herein,drawing inspiration from creatures in the Cambrian period,such as Hallucigenia,we develop a centimeter-sized soft robot with multiple magnetic legs(referred to as a soft centirobot).This robot is equipped with graphitic carbon nitride(g-C_(3)N_(4))nanosheets to kill biological threats by photogenerated reactive oxygen species under black light illumination.The motion of g-C_(3)N_(4) soft centirobot is controlled by magnetic actuation even in complex wastewater samples(with a relative speed of 0.12 body lengths per second).The magnetic multilegs work as a propeller to walk across and cover large regions,and water disinfection is more efficient than what could be achieved by nano/micrometer scale sheets of g-C_(3)N_(4).Finally,factors affecting the accelerated propulsion of g-C_(3)N_(4) soft centirobot such as design principle,structure geometry,body mass,driving mechanism,and magnetic sensitivity,have been investigated.We envision that such a photoactive 2D material-based integrated centimeter-sized robot shall find application in many areas where pathogen removal is required.
