TY - JOUR
T1 - Ultrasound-Responsive Hydrogels for On-Demand Protein Release
AU - Arrizabalaga, Julien H.
AU - Smallcomb, Molly
AU - Abu-Laban, Mohammad
AU - Liu, Yiming
AU - Yeingst, Tyus J.
AU - Dhawan, Aman
AU - Simon, Julianna C.
AU - Hayes, Daniel J.
N1 - Publisher Copyright:
© 2022 American Chemical Society. All rights reserved.
PY - 2022/7/18
Y1 - 2022/7/18
N2 - The development of tunable, ultrasound-responsive hydrogels that can deliver protein payload on-demand when exposed to focused ultrasound is described in this study. Reversible Diels-Alder linkers, which undergo a retro reaction when stimulated with ultrasound, were used to cross-link chitosan hydrogels with entrapped FITC-BSA as a model protein therapeutic payload. Two Diels-Alder linkage compositions with large differences in the reverse reaction energy barriers were compared to explore the influence of linker composition on ultrasound response. Selected physicochemical properties of the hydrogel construct, its basic degradation kinetics, and its cytocompatibility were measured with respect to Diels-Alder linkage composition. Focused ultrasound initiated the retro Diels-Alder reaction, controlling the release of the entrapped payload while also allowing for real-time visualization of the ongoing process. Additionally, increasing the focused ultrasound amplitude and time correlated with an increased rate of protein release, indicating stimuli responsive control.
AB - The development of tunable, ultrasound-responsive hydrogels that can deliver protein payload on-demand when exposed to focused ultrasound is described in this study. Reversible Diels-Alder linkers, which undergo a retro reaction when stimulated with ultrasound, were used to cross-link chitosan hydrogels with entrapped FITC-BSA as a model protein therapeutic payload. Two Diels-Alder linkage compositions with large differences in the reverse reaction energy barriers were compared to explore the influence of linker composition on ultrasound response. Selected physicochemical properties of the hydrogel construct, its basic degradation kinetics, and its cytocompatibility were measured with respect to Diels-Alder linkage composition. Focused ultrasound initiated the retro Diels-Alder reaction, controlling the release of the entrapped payload while also allowing for real-time visualization of the ongoing process. Additionally, increasing the focused ultrasound amplitude and time correlated with an increased rate of protein release, indicating stimuli responsive control.
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U2 - 10.1021/acsabm.2c00192
DO - 10.1021/acsabm.2c00192
M3 - Article
C2 - 35700312
AN - SCOPUS:85134632076
SN - 2576-6422
VL - 5
SP - 3212
EP - 3218
JO - ACS Applied Bio Materials
JF - ACS Applied Bio Materials
IS - 7
ER -