1. Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Thailand;
2. Drug and Cosmetics Excellence Center, Walailak University, Nakhon Si Thammarat, Thailand;
3. School of Pharmacy, Walailak University, Nakhon Si Thammarat, Thailand;
4. GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, Singapore, Singapore;
5. Drug Delivery System Excellence Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Thailand