A tunable morphing polyelectrolyte system for smart ocular applications

Ansu Sun, Sreepathy Sridhar, Sherry Chen, Yifan Li*, Ben Bin Xu*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

52 Downloads (Pure)


For the first time, a focal-length tunable intra-ocular lens (IOL) device has been realized by a standard-shaped, homogeneous “one material” system. Different to existing technologies, this poly(N-isopropylacrylamide) gel (PNIPAM) based polyelectrolyte system doesn’t require any additional materials (e.g. metal electrodes, movable mechanical structures) to achieve a controllable lens shape transformation for the focal-length shifting actuation. The designed morphological deformation mechanism employs ionic-strength responsive mechanical buckling via controlled swelling of PNIPAM in phosphate buffered saline (PBS) with similar concentration to human eye liquid. This unique approach will unlock great potential in a wide range of smart ocular applications.
Original languageEnglish
Title of host publication21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021
Place of PublicationPiscataway, NJ
Number of pages4
ISBN (Electronic)9781665412674
ISBN (Print)9781665448451
Publication statusPublished - 20 Jun 2021
EventTransducers 2021: The 21st International conference on Solid-state sensors, actuators and microsystems - Online
Duration: 20 Jun 202125 Jun 2021


ConferenceTransducers 2021
Abbreviated titleTransducers 2021
Internet address


Dive into the research topics of 'A tunable morphing polyelectrolyte system for smart ocular applications'. Together they form a unique fingerprint.

Cite this