Cilllia

Ou, Jifei; Dublon, Gershon; Cheng, Chin-Yi; Heibeck, Felix; Willis, Karl D. D.; Ishii, Hiroshi

doi:10.1145/2858036.2858257

Cited by 70 publications

(10 citation statements)

References 23 publications

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“…Using many established fabrication techniques, it may be possible to diversify engineering functions and open new avenues for research. For example, researchers working on the Cilllia project have used a single microfabrication method (using three-dimensional printing) to generate hair arrays with both actuation and sensing capabilities as well as surface texture modification [176]. Additionally, hairs rarely act alone.…”

Section: Discussionmentioning

confidence: 99%

Design principles of hair-like structures as biological machines

Seale

Cummins

Viola

et al. 2018

J. R. Soc. Interface.

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Hair-like structures are prevalent throughout biology and frequently act to sense or alter interactions with an organism's environment. The overall shape of a hair is simple: a long, filamentous object that protrudes from the surface of an organism. This basic design, however, can confer a wide range of functions, owing largely to the flexibility and large surface area that it usually possesses. From this simple structural basis, small changes in geometry, such as diameter, curvature and inter-hair spacing, can have considerable effects on mechanical properties, allowing functions such as mechanosensing, attachment, movement and protection. Here, we explore how passive features of hair-like structures, both individually and within arrays, enable diverse functions across biology. Understanding the relationships between form and function can provide biologists with an appreciation for the constraints and possibilities on hair-like structures. Additionally, such structures have already been used in biomimetic engineering with applications in sensing, water capture and adhesion. By examining hairs as a functional mechanical unit, geometry and arrangement can be rationally designed to generate new engineering devices and ideas.

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Section: Discussionmentioning

confidence: 99%

Design principles of hair-like structures as biological machines

Seale

Cummins

Viola

et al. 2018

J. R. Soc. Interface.

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“…Our approach exploits off-the-shelf two-part silicones that are widely available and have a wide range of material applications, combined with a novel form of printing to create complex and precise structural transformations. Applications of tunable 4D printed silicones can include active hybrid material systems as sensorialresponsive environments (Ahlquist 2019), soft shape-change tangible interfaces (Ou et al 2016), and wearables emotional interfaces (Farahi 2018).…”

Section: Discussionmentioning

confidence: 99%

4D Soft Material Systems

Grassi

Sparrman

Paoletti

et al. 2021

Proceedings of the 2021 DigitalFUTURES

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This work introduces multi-material liquid printing as an enabling technology for designing programmed shape-shifting silicones. The goal of this research is to provide a readily available, scalable and customized approach at producing responsive 4D printed structures for a wide range of applications. Hence, the methodology allows customization at each step of the procedure by intervening either on the material composition and/or on the design and fabrication strategies for the production of responsive components. A significant endeavour is initiated to develop and engineer two different material systems that enable shape-shifting: silicone-ethanol composites and polyvinyl siloxane swelling rubbers. The printed samples successfully comply with the expected swelling behaviour through a variety of printed test patterns.

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“…We imagine several strands of research to address this challenge: (1) a standard platform for hardware prototyping, dealing with some aspects of actuation; (2) a cross-platform software layer for applications and; (3) tools for end-user programming. Recent research has started to address this challenge at all three layers [32,64,105]. The next steps are to better understand requirements from existing prototypes and taxonomy papers before creating a platform that enables the sharing of knowledge and code across the whole community.…”

Section: Toolkits For Prototyping Of Shape-changing Hardwarementioning

confidence: 99%