Dragonfly Inspired Smart Soft Robot

Recent advancements in soft robotics have led to the development of compliant robots that can exhibit complex motions driven by living cells(1, 2), chemical reactions(3), or electronics(4). Further innovations are however needed to create the next generation of soft robots that can carry out advanced functions beyond locomotion. Here we describe DraBot—a dragonfly-inspired, entirely soft, multifunctional robot that combines long-term locomotion over water surface with sensing, responding, and adaptation capabilities. By integrating soft actuators, stimuli-responsive materials, and microarchitectural features, we created a circuitry of pneumatic and microfluidic logic that enabled the robot to undergo user- and environment-controlled (pH) locomotion, including navigating hazardous (acidic) conditions. DraBot was also engineered to sense additional environmental perturbations (temperature) and detect and clean up chemicals (oil). The design, fabrication, and integration strategies demonstrated here pave a way for developing futuristic soft robots that can acclimatize and adapt to harsh conditions while carrying out complex tasks such as exploration, environmental remediation, and health care in complex environments.

[1]  C. Selhuber-Unkel,et al.  Living Materials Herald a New Era in Soft Robotics , 2019, Advanced materials.

[2]  Elvira S. Poloczanska,et al.  Coral Reef Ecosystems under Climate Change and Ocean Acidification , 2017, Front. Mar. Sci..

[3]  Jeong-Woo Choi,et al.  Phototactic guidance of a tissue-engineered soft-robotic ray , 2016, Science.

[4]  Xiangyang Zhu,et al.  Soft wall-climbing robots , 2018, Science Robotics.

[5]  R. Lal,et al.  Engineering the cell-material interface for controlling stem cell adhesion, migration, and differentiation. , 2011, Biomaterials.

[6]  R. Ogden.  Large deformation isotropic elasticity – on the correlation of theory and experiment for incompressible rubberlike solids , 1972, Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.

[7]  James T Thorson,et al.  Impacts of historical warming on marine fisheries production , 2019, Science.

[8]  Don Monteith,et al.  A Water Framework Directive-compatible metric for assessing acidification in UK and Irish rivers using diatoms. , 2016, The Science of the total environment.

[9]  Cecilia Laschi,et al.  Soft robotics: a bioinspired evolution in robotics. , 2013, Trends in biotechnology.

[10]  Robert J. Wood,et al.  A Resilient, Untethered Soft Robot , 2014 .

[11]  Megan L. McCain,et al.  A tissue-engineered jellyfish with biomimetic propulsion , 2012, Nature Biotechnology.

[12]  R. Rivlin.  Large Elastic Deformations of Isotropic Materials , 1997 .

[13]  C. Majidi.  Soft Robotics: A Perspective—Current Trends and Prospects for the Future , 2014 .

[14]  Young-Geun Park,et al.  Untethered Soft Robotics with Fully Integrated Wireless Sensing and Actuating Systems for Somatosensory and Respiratory Functions. , 2020, Soft robotics.

[15]  R. Rivlin.  Large elastic deformations of isotropic materials IV. further developments of the general theory , 1948, Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences.

[16]  Sheila Russo,et al.  Increasing the Dimensionality of Soft Microstructures through Injection‐Induced Self‐Folding , 2018, Advanced materials.

[17]  Cheng-Chih Hsu,et al.  Rapid self-healing hydrogels , 2012, Proceedings of the National Academy of Sciences.

[18]  Beatriz Jurado-Sánchez,et al.  Micromotors for environmental applications: a review , 2018 .

[19]  M. Tolstoy,et al.  Magnitude of the 2010 Gulf of Mexico Oil Leak , 2010, Science.

[20]  D. Gracias,et al.  Soft Three-Dimensional Robots with Hard Two-Dimensional Materials. , 2019, ACS nano.

[21]  S. Konishi,et al.  All PDMS pneumatic microfinger with bidirectional motion and its application , 2006, Journal of Microelectromechanical Systems.

[22]  Ok Chan Jeong,et al.  Measurement of nonlinear mechanical properties of PDMS elastomer , 2011 .

[23]  R. Futahashi,et al.  Color vision and color formation in dragonflies. , 2016, Current opinion in insect science.

[24]  S. Quake,et al.  Monolithic microfabricated valves and pumps by multilayer soft lithography. , 2000, Science.

[25]  Paolo Dario,et al.  Biomedical applications of soft robotics , 2018, Nature Reviews Materials.

[26]  Huai-Ti Lin,et al.  GoQBot: a caterpillar-inspired soft-bodied rolling robot , 2011, Bioinspiration & biomimetics.

[27]  Sung-Jin Choi,et al.  A polydimethylsiloxane (PDMS) sponge for the selective absorption of oil from water. , 2011, ACS applied materials & interfaces.

[28]  Stefano Scheggi,et al.  Stimuli-Responsive Soft Untethered Grippers for Drug Delivery and Robotic Surgery , 2017, Front. Mech. Eng..

[29]  Robert J. Wood,et al.  An integrated design and fabrication strategy for entirely soft, autonomous robots , 2016, Nature.

[30]  Claire B. Paris,et al.  Invisible oil beyond the Deepwater Horizon satellite footprint , 2020, Science Advances.

[31]  M. González‐Dávila,et al.  The natural ocean acidification and fertilization event caused by the submarine eruption of El Hierro , 2013, Scientific Reports.

[32]  Robert C. Wolpert,et al.  A Review of the , 1985 .

[33]  Y. S. Zhang,et al.  Electrically Driven Microengineered Bioinspired Soft Robots , 2018, Advanced materials.

[34]  Shyni Varghese,et al.  Biomaterials directed in vivo osteogenic differentiation of mesenchymal cells derived from human embryonic stem cells. , 2013, Tissue engineering. Part A.

[35]  Judith Reinhard,et al.  Color Change from male-mimic to Gynomorphic: a New Aspect of Signaling Sexual Status in Damselflies (Odonata, Zygoptera) , 2012 .

[36]  M. Mooney.  A Theory of Large Elastic Deformation , 1940 .

[37]  D. Anderson,et al.  Progress in understanding harmful algal blooms: paradigm shifts and new technologies for research, monitoring, and management. , 2012, Annual review of marine science.

[38]  MajidiCarmel,et al.  Soft Robotics: A Perspective—Current Trends and Prospects for the Future , 2014 .

[39]  D. Rus,et al.  Design, fabrication and control of soft robots , 2015, Nature.

[40]  Alin Albu-Schäffer,et al.  Soft robotics , 2008, IEEE Robotics & Automation Magazine.

[41]  Hao Zeng,et al.  Light‐Driven Soft Robot Mimics Caterpillar Locomotion in Natural Scale , 2016 .

[42]  Russell H. Taylor,et al.  Combating COVID-19—The role of robotics in managing public health and infectious diseases , 2020, Science Robotics.

[43]  Robert J. Wood,et al.  A 3D-printed, functionally graded soft robot powered by combustion , 2015, Science.

[44]  Ivar P. Muniz,et al.  Freshwater acidification: its effects on species and communities of freshwater microbes, plants and animals , 1990 .

[45]  Daniela Rus,et al.  Autonomous Soft Robotic Fish Capable of Escape Maneuvers Using Fluidic Elastomer Actuators. , 2014, Soft robotics.

[46]  Daniela Rus,et al.  Autonomous undulatory serpentine locomotion utilizing body dynamics of a fluidic soft robot , 2013, Bioinspiration & biomimetics.