Cubic liquid crystalline nanoparticles: optimization and evaluation for ocular delivery of tropicamide

Drug Delivery
Purnima Verma, Munish Ahuja

Abstract

The purpose of this study was to investigate the potential of cubic liquid crystalline nanoparticles for ocular delivery of tropicamide. Ultrasound-assisted fragmentation of cubic liquid crystalline bulk phases resulted in cubic liquid crystalline nanoparticles employing Pluronic F127 as dispersant. The effects of process variables such as sonication time, sonication amplitude, sonication depth, and pre-mixing time on particle size and polydispersity index was investigated using central composite design. The morphology of tropicamide-loaded nanoparticles was found to be nearly cubical in shape by transmission electron microscopy observation. Further, small angle X-ray scattering experiment confirmed the presence of D and P phase cubic structures in coexistence. The optimized tropicamide-loaded cubic nanoparticles showed in vitro corneal permeation of tropicamide across isolated porcine cornea comparable to its commercial preparation, Tropicacyl®. Ocular tolerance was evaluated by Hen's egg-chorioallantoic membrane test and histological studies. The results of in vivo mydriatic response study demonstrated a remarkably higher area under mydriatic response curve (AUC0→1440 min) values of cubic nanoparticles over Tropicacyl® indica...Continue Reading

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Citations

Nov 24, 2016·Scientific Reports·Joo-Hee ParkChoul-Yong Park
Sep 28, 2018·Expert Opinion on Drug Delivery·Andrew M Bodratti, Paschalis Alexandridis
Sep 5, 2020·Expert Opinion on Drug Delivery·Ana Vitoria Pupo SilvestriniMaria Vitoria Lopes Badra Bentley
Nov 8, 2017·Scientific Reports·Ja-Yeon KimChoul Yong Park
Jun 30, 2019·International Journal of Pharmaceutics·Rummenigge Oliveira SilvaArmando Silva-Cunha
Mar 27, 2021·Drug Delivery and Translational Research·Mohamed Dawoud, Randa Abdou

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