title: Highly Stretchable, Strain Sensing Hydrogel Optical Fibers.
abstract: A core-clad fiber made of elastic, tough hydrogels is highly stretchable while guiding light. Fluorescent dyes are easily doped into the hydrogel fiber by diffusion. When stretched, the transmission spectrum of the fiber is altered, enabling the strain to be measured and also its location.
authors.affiliation: Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 65 Landsdowne Street, Cambridge, Massachusetts, 02139, USA.|State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing, 100084, China.
authors.forename: Jingjing
authors.initials: J
authors.lastname: Guo
authors.affiliation: Soft Active Materials Laboratory, Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
authors.forename: Xinyue
authors.initials: X
authors.lastname: Liu
authors.affiliation: Biomaterials Innovation Research Center, Engineering in Medicine Division, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA.|State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122, Luoshi Road, Wuhan, 430070, China.
authors.forename: Nan
authors.initials: N
authors.lastname: Jiang
authors.affiliation: Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 65 Landsdowne Street, Cambridge, Massachusetts, 02139, USA.
authors.forename: Ali K
authors.initials: AK
authors.lastname: Yetisen
authors.affiliation: Soft Active Materials Laboratory, Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
authors.forename: Hyunwoo
authors.initials: H
authors.lastname: Yuk
authors.affiliation: State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing, 100084, China.
authors.forename: Changxi
authors.initials: C
authors.lastname: Yang
authors.affiliation: Biomaterials Innovation Research Center, Engineering in Medicine Division, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA.
authors.forename: Ali
authors.initials: A
authors.lastname: Khademhosseini
authors.affiliation: Soft Active Materials Laboratory, Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
authors.forename: Xuanhe
authors.initials: X
authors.lastname: Zhao
authors.affiliation: Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 65 Landsdowne Street, Cambridge, Massachusetts, 02139, USA.
authors.forename: Seok-Hyun
authors.initials: SH
authors.lastname: Yun
keywords: absorbance spectroscopy; fiber optics; hydrogels; strain sensing