TY - GEN
T1 - Stimuli-responsive hydrogels embedding mechanichal metamaterials for high sensitive biochemical sensors
AU - Yamawaki, Shota
AU - Tsuchiya, Mio
AU - Onoe, Hiroaki
N1 - Funding Information:
This work was supported by JKA and its promotion funds from KEIRIN RACE, JKA
Publisher Copyright:
© 2020 CBMS-0001
PY - 2020
Y1 - 2020
N2 - This paper describes a novel approach to magnify the shrink/swell degree of stimuli-responsive hydrogels with micro-scale mechanical metamaterials. The mechanical matematerial fabricated by two-photon stereolithography can be embedded in a structural-color stimuli-responsive hydrogels to amplify the sensitivity (the change in structural color) (Figure 1). To prove this concept, we here constructed micro-scale mesh-like structures with negative poisson ratio. By responding to an applied displacement of 'z = 50 μm, this structure expanded to 'x = 90 μm, showing its displacement amplification. The fabricated structures embedded in poly-N-isopropylacrylamide (PNIPAM) hydrogel showed that the shrinkage of the PNIPAM hydrogel successfully drive the embedded mechanical-metamaterial structures. We believe that this system would be an effective approach to increase the sensitivity of the structural color gel sensors for practical applications.
AB - This paper describes a novel approach to magnify the shrink/swell degree of stimuli-responsive hydrogels with micro-scale mechanical metamaterials. The mechanical matematerial fabricated by two-photon stereolithography can be embedded in a structural-color stimuli-responsive hydrogels to amplify the sensitivity (the change in structural color) (Figure 1). To prove this concept, we here constructed micro-scale mesh-like structures with negative poisson ratio. By responding to an applied displacement of 'z = 50 μm, this structure expanded to 'x = 90 μm, showing its displacement amplification. The fabricated structures embedded in poly-N-isopropylacrylamide (PNIPAM) hydrogel showed that the shrinkage of the PNIPAM hydrogel successfully drive the embedded mechanical-metamaterial structures. We believe that this system would be an effective approach to increase the sensitivity of the structural color gel sensors for practical applications.
KW - Biosensor
KW - Hydrogel
KW - Mechanical metamaterial
KW - Negative poisson ratio
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M3 - Conference contribution
AN - SCOPUS:85098258564
T3 - MicroTAS 2020 - 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences
SP - 593
EP - 594
BT - MicroTAS 2020 - 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences
PB - Chemical and Biological Microsystems Society
T2 - 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2020
Y2 - 4 October 2020 through 9 October 2020
ER -