by Huichan Zhao, Kevin O’Brien, Shuo Li, and Robert F. Shepherd

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 Small finger is 6, index finger is 7 middle finger 8, next 9 and up to thumb which is 10  Open palms facing you. Touch the fingers of two numbers you.

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Date of download: 10/13/2017 Copyright © ASME. All rights reserved.

Demonstrations I, II, and III.

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Robot surface tension experiments.

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T2-weighted cross-sectional MR imaging of MSP swarms inside SD rats.

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Attachment of an underwater vehicle using the biorobotic remora disc.

Spontaneous locomotion of hygrobots under spatial gradient of humidity

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Soft, bistable valve acting as a pneumatic switch.

Crawler locomotion. Crawler locomotion. (A) Initial and final position of the crawlers after six inflation cycles with V ∈ [0,24] ml. (B) Displacement.

Autonomous soft robot with earthwork-like locomotion using an air source of constant pressure. Autonomous soft robot with earthwork-like locomotion using.

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Details of the soft, bistable valve.

Prosthesis grasping and control.

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Experimental results for healthy participants.

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Galloping-like gait with the design of a two-legged robot.

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Presentation transcript:

by Huichan Zhao, Kevin O’Brien, Shuo Li, and Robert F. Shepherd Optoelectronically innervated soft prosthetic hand via stretchable optical waveguides by Huichan Zhao, Kevin O’Brien, Shuo Li, and Robert F. Shepherd Sci. Robotics Volume 1(1):eaai7529 December 6, 2016 Copyright © 2016, American Association for the Advancement of Science

Stretchable waveguide fabrication and structure of the optoelectronically innervated soft finger. Stretchable waveguide fabrication and structure of the optoelectronically innervated soft finger. (A) Steps for fabricating a waveguide and the corresponding cross section for each step; (B) fabricated waveguides with LEDs of assorted colors inserted from one end in a sinuous shape; (C) waveguides in a curved shape; (D) waveguide in a knot; (E) schematic of a soft innervated finger in both unpowered (left) and powered (right) states and its cross section (bottom right corner). Huichan Zhao et al. Sci. Robotics 2016;1:eaai7529 Copyright © 2016, American Association for the Advancement of Science

Characterization of the waveguide sensor in different deformation modes. Characterization of the waveguide sensor in different deformation modes. Characterization for (A) pure elongation, (B) pure bending, and (C) pure pressing. (Error bars indicate SEs from 20 cyclic tests of one waveguide sample). Huichan Zhao et al. Sci. Robotics 2016;1:eaai7529 Copyright © 2016, American Association for the Advancement of Science

Innervated prosthetic hand. Innervated prosthetic hand. (A) Schematic of hand structure and components; (B) image of the fabricated hand mounted on a robotic arm with each finger actuated at ΔP = 100 kPa. Huichan Zhao et al. Sci. Robotics 2016;1:eaai7529 Copyright © 2016, American Association for the Advancement of Science

Capabilities of the hand. Capabilities of the hand. (A) Holding a coffee mug; (B and C) grasping a tomato with the palm facing down (B) and the palm facing up (C); (D) shaking a human hand; (E) lateral scanning over surfaces to detect roughness and shape; and (F) probing the softness of a soft sponge using the middle finger. Huichan Zhao et al. Sci. Robotics 2016;1:eaai7529 Copyright © 2016, American Association for the Advancement of Science

Shape and texture detection. Shape and texture detection. (A) Seven surfaces of different shape and roughness (left) and the reconstructed surfaces by the hand (right); (B) image of the lateral scanning for (A) using the bottom waveguide of each digit; (C) lateral scanning of a computer mouse; (D) mouse and the reconstructed shape. Huichan Zhao et al. Sci. Robotics 2016;1:eaai7529 Copyright © 2016, American Association for the Advancement of Science

Softness detection. Softness detection. (A) States of the softness detection at different air pressures for unblocked (left), sponge (middle), and acrylic (right); (B) model of softness detection; (C) force-curvature curves for different objects detected from the bottom and top waveguides of the index. Huichan Zhao et al. Sci. Robotics 2016;1:eaai7529 Copyright © 2016, American Association for the Advancement of Science

Waveguide power loss during shape detection and probing softness. Waveguide power loss during shape detection and probing softness. (A) Process of middle finger detecting the shape using its bottom waveguide: actuate fingers, scan above tomatoes, de-actuate fingers. (B) Process of index finger probing the softness using three waveguides: press unblocked, press tomato 1 (unripe), press tomato 2 (ripe), and press tomato 3 (unripe). Huichan Zhao et al. Sci. Robotics 2016;1:eaai7529 Copyright © 2016, American Association for the Advancement of Science