Ultrasound-triggered liposomes for on-demand local anesthesia

2018 ◽  
Vol 9 (1) ◽  
pp. 5-8 ◽  
Author(s):  
Kathleen Cullion ◽  
Alina Y Rwei ◽  
Daniel S Kohane
Keyword(s):  
2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Wei Zhang ◽  
Tianjiao Ji ◽  
Yang Li ◽  
Yueqin Zheng ◽  
Manisha Mehta ◽  
...  

2020 ◽  
Vol 31 (17) ◽  
pp. 2252-2267
Author(s):  
Qiying Pang ◽  
Jia Zhao ◽  
Shuchi Zhang ◽  
Xiaoqing Zhang

2017 ◽  
Vol 251 ◽  
pp. 68-74 ◽  
Author(s):  
Alina Y. Rwei ◽  
Changyou Zhan ◽  
Bruce Wang ◽  
Daniel S. Kohane
Keyword(s):  

2015 ◽  
Vol 112 (51) ◽  
pp. 15719-15724 ◽  
Author(s):  
Alina Y. Rwei ◽  
Jung-Jae Lee ◽  
Changyou Zhan ◽  
Qian Liu ◽  
Meryem T. Ok ◽  
...  

Pain management would be greatly enhanced by a formulation that would provide local anesthesia at the time desired by patients and with the desired intensity and duration. To this end, we have developed near-infrared (NIR) light-triggered liposomes to provide on-demand adjustable local anesthesia. The liposomes contained tetrodotoxin (TTX), which has ultrapotent local anesthetic properties. They were made photo-labile by encapsulation of a NIR-triggerable photosensitizer; irradiation at 730 nm led to peroxidation of liposomal lipids, allowing drug release. In vitro, 5.6% of TTX was released upon NIR irradiation, which could be repeated a second time. The formulations were not cytotoxic in cell culture. In vivo, injection of liposomes containing TTX and the photosensitizer caused an initial nerve block lasting 13.5 ± 3.1 h. Additional periods of nerve block could be induced by irradiation at 730 nm. The timing, intensity, and duration of nerve blockade could be controlled by adjusting the timing, irradiance, and duration of irradiation. Tissue reaction to this formulation and the associated irradiation was benign.


1984 ◽  
Vol 48 (12) ◽  
pp. 653-658
Author(s):  
MM Walsh ◽  
R Hannebrink ◽  
B Heckman

2006 ◽  
Vol 175 (4S) ◽  
pp. 359-359
Author(s):  
Sompol Permpongkoso ◽  
Aaron Sulman ◽  
Stephen B. Solomon ◽  
GaryX Gong ◽  
Louis R. Kavoussi

Sign in / Sign up

Export Citation Format

Share Document