TY - GEN
T1 - Ultrasound-Triggered Drug Release from Hydrogel Microspheres with Release Booster
AU - Kubota, Takeshi
AU - Kurashina, Yuta
AU - Onoe, Hiroaki
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/1/25
Y1 - 2021/1/25
N2 - This paper describes ultrasound-triggered drug release from hydrogel microspheres with release booster. As a drug carrier, calcium alginate hydrogel microspheres containing drug model and tungsten particles were fabricated by using a centrifugal microfluidic device. The tungsten particles with high acoustic impedance enable the hydrogel microspheres to have high sensitivity to ultrasound so that the release rate of the drug models improves. By applying ultrasound to the hydrogel microspheres, we confirmed the release of fluorescent silica nanoparticles and protein as a drug model. Importantly, the drug model was released from our hydrogel microspheres even in a cavitation-suppressed environment, indicating that this system could reduce the damage to tissues. Our proposed ultrasound-triggered drug release system using tungsten particles would be an effective on-demand drug delivery system (DDS).
AB - This paper describes ultrasound-triggered drug release from hydrogel microspheres with release booster. As a drug carrier, calcium alginate hydrogel microspheres containing drug model and tungsten particles were fabricated by using a centrifugal microfluidic device. The tungsten particles with high acoustic impedance enable the hydrogel microspheres to have high sensitivity to ultrasound so that the release rate of the drug models improves. By applying ultrasound to the hydrogel microspheres, we confirmed the release of fluorescent silica nanoparticles and protein as a drug model. Importantly, the drug model was released from our hydrogel microspheres even in a cavitation-suppressed environment, indicating that this system could reduce the damage to tissues. Our proposed ultrasound-triggered drug release system using tungsten particles would be an effective on-demand drug delivery system (DDS).
KW - Acoustic impedance
KW - Drug release
KW - Hydrogel microspheres
KW - Ultrasound
UR - http://www.scopus.com/inward/record.url?scp=85103461520&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85103461520&partnerID=8YFLogxK
U2 - 10.1109/MEMS51782.2021.9375158
DO - 10.1109/MEMS51782.2021.9375158
M3 - Conference contribution
AN - SCOPUS:85103461520
T3 - Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
SP - 26
EP - 29
BT - 34th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 34th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2021
Y2 - 25 January 2021 through 29 January 2021
ER -