Biopolymer-based supramolecular micelles from β-cyclodextrin and methylcellulose

Synthesis of 6‐O‐Poly(ϵ‐caprolactone)‐L‐ascorbic Acid and its Controlled Release from Supramolecular Polymer Micelles

“…Besides the diffraction peaks at 2 θ = 10.8, 12.6, 19.2, and 20.8°, which are characteristic for the CD inclusion complex in the channel structure, another two diffraction peaks at 2 θ = 21.4 and 23.7°, which could be counted as fingerprint of the existence of free PCL can also be found on the diffractogram of the β‐CD/PCL SMPMs. The result confirms the coexistence of free PCL and the β‐CD/PCL inclusion complex within the micelles …”

“…In our previous work, we have constructed supramolecular polymer micelles (SMPMs) from cyclodextrin (CD) and biopolymers, which showed higher drug loading and much more sustained drug release compared with other traditional micelles. It was reported that β‐CD could take a protective role on the photo‐stability and antioxidant capacity of AA.…”

Microencapsulation of tea tree oil by spray‐drying with methyl cellulose as the emulsifier and wall material together with chitosan/alginate

“…Owing to the instability of microcells formed by amphiphilic molecules, CTS and ALG were used as the external wall materials to strengthen the microcells. Both of CTS and ALG can contact with MC through hydrogen bonds and intermolecular forces . Furthermore, positively charged CTS and negatively charged ALG can deposit together through electrostatic layer by layer deposition technique .…”

“…The results indicated that the contact between hydrophobic methyl group and TTO stabilized the microcells of MC . The intermolecular interactions between external molecules (CTS or ALG) and MC and the electrostatic repulsions of charged CTS (or ALG) interfered the self‐assembly of MC molecules and deformed the microcells . Therefore, the microcells of D1 (TTO/MC/ALG), D2 (TTO/MC/CTS) were not as round as those of B1.…”

“…MC can self‐assembly and form oil‐in‐water microcells inside which the oil is covered. Then the external hydrophilic groups of MC microcells contact with CTS (followed by ALG) to form multi‐layers of the microcapsules . It expressed that 0.4 g MC contained exact proper amount of molecules to cover TTO.…”