The net capturing method holds great potential for space debris removal due to its adaptability to the various target shapes and high fault tolerance.However,the capture mechanisms of current rope nets,which rely sole...The net capturing method holds great potential for space debris removal due to its adaptability to the various target shapes and high fault tolerance.However,the capture mechanisms of current rope nets,which rely solely on a passive wrap-ping mechanism,limit their capacity to capture objects within a specific size range and make it challenging to handle unexpected situations.Inspired by spider webs,which combine wrapping and adhering to capture prey of various sizes,we present a new type of net(envelope diameter:208.49 mm)for on-orbit capture.This net adopts a spiral symmetric structure similar to spider webs,incorporates electrostatic-microstructure hybrid adhesives,and increases the maximum contact area by 38.31%,allowing it to capture debris ranging from fragments smaller than the mesh size(envelope diam-eter:2.7 mm-4.4 mm)to larger objects(envelope diameter:270 mm),and effectively grasps flexible items(450 mm2),planar items(350 mm2)and three-dimensional items(160 mm3).Moreover,to validate the net's capability for wrapping and adhesion,simulations and experiments are demonstrated that this dual capture method can effectively handle various targets.展开更多
Artificial skins are essential for bridging sensory gaps between robots and environments,enabling natural and intuitive interactions.While artificial skins can sense stimuli like pressure and stretchability,their capa...Artificial skins are essential for bridging sensory gaps between robots and environments,enabling natural and intuitive interactions.While artificial skins can sense stimuli like pressure and stretchability,their capabilities need to be expanded into chemical sensing for specific applications.Here,we introduce optical/electronic artificial skins(oe-skins),advancing robotic sensing from physical perception to chemical sensation.Our design integrates optical fibers into a carbon nanotube(CNT)-based haptic electronic skin.This empowers the skin to sense force and temperature,while detecting near-infrared(NIR)optical signals from molecules,giving dual modalities of physical and chemical sensing.We successfully implement the oe-skin into robots,enabling intraocular pressure and glucose level detection for diagnosing glaucoma and diabetes.Additionally,we demonstrated their effectiveness in delicately harvesting fruits and grading them by ripeness,firmness,and sugar levels.We present a blueprint for next-generation intelligent electronics where technological progress aligns with sustainable development and societal well-being.展开更多
基金the New Chongqing Innovative Young Talent Project under Grant 2024NSCQ-qncxX0468Dreams Foundation of Jianghuai Advance Technology Center under Grant 2023-ZM01Z007.
文摘The net capturing method holds great potential for space debris removal due to its adaptability to the various target shapes and high fault tolerance.However,the capture mechanisms of current rope nets,which rely solely on a passive wrap-ping mechanism,limit their capacity to capture objects within a specific size range and make it challenging to handle unexpected situations.Inspired by spider webs,which combine wrapping and adhering to capture prey of various sizes,we present a new type of net(envelope diameter:208.49 mm)for on-orbit capture.This net adopts a spiral symmetric structure similar to spider webs,incorporates electrostatic-microstructure hybrid adhesives,and increases the maximum contact area by 38.31%,allowing it to capture debris ranging from fragments smaller than the mesh size(envelope diam-eter:2.7 mm-4.4 mm)to larger objects(envelope diameter:270 mm),and effectively grasps flexible items(450 mm2),planar items(350 mm2)and three-dimensional items(160 mm3).Moreover,to validate the net's capability for wrapping and adhesion,simulations and experiments are demonstrated that this dual capture method can effectively handle various targets.
基金supported by the Joint Fund of the National Natural Science Foundation of China(Grant No.U20A2019)the Natural Key R&D Program of China(Grant No.2024YFD2000900)+2 种基金the Major Science and Technology Special Projects of Xinjiang Uygur Autonomous Region(2022A02011-1)the Natural Science Foundation of Xinjiang Uygur Autonomous Region(2022D01E48)supported by the CREATE Lab of EPFL.
文摘Artificial skins are essential for bridging sensory gaps between robots and environments,enabling natural and intuitive interactions.While artificial skins can sense stimuli like pressure and stretchability,their capabilities need to be expanded into chemical sensing for specific applications.Here,we introduce optical/electronic artificial skins(oe-skins),advancing robotic sensing from physical perception to chemical sensation.Our design integrates optical fibers into a carbon nanotube(CNT)-based haptic electronic skin.This empowers the skin to sense force and temperature,while detecting near-infrared(NIR)optical signals from molecules,giving dual modalities of physical and chemical sensing.We successfully implement the oe-skin into robots,enabling intraocular pressure and glucose level detection for diagnosing glaucoma and diabetes.Additionally,we demonstrated their effectiveness in delicately harvesting fruits and grading them by ripeness,firmness,and sugar levels.We present a blueprint for next-generation intelligent electronics where technological progress aligns with sustainable development and societal well-being.
