Photostability of water-soluble inclusion complexes of UV-filters and curcumin with gamma-cyclodextrin polymer

Environmentally Friendly Sunscreens: Mechanochemical Synthesis and Characterization of β-CD Inclusion Complexes of Avobenzone and Octinoxate with Improved Photostability

“…The vibrational results are in agreement with the literature. It is not surprising that changes in the guest ring modes were observed; actually, both octinoxate and avobenzone have been reported to penetrate into the hydrophobic cavity of β-CD and γ-CD . Molecular modeling studies for the inclusion complex have shown that the predominant contribution to the E binding comes from the van der Waals forces .…”

“…It is not surprising that changes in the guest ring modes were observed; actually, both octinoxate and avobenzone have been reported to penetrate into the hydrophobic cavity of β-CD 76 and γ-CD. 77 Molecular modeling studies for the inclusion complex have shown that the predominant contribution to the E binding comes from the van der Waals forces. 78 On the other hand, NMR studies in solution have shown that the aromatic portion of the octinoxate molecule is located inside the β-CD cavity, with the ester group close to the external surface of the macrocycle, 79 in agreement with Scalia et al 47 Therefore, it is not surprising that upon inclusion compound formation only a slight shift of the CO stretching mode was observed.…”

Bioactivity and Cell Imaging of Antitumor Fluorescent Agents (Curcumin Derivatives) Coated by Two‐Way Embedded Cyclodextrin Strategy

“…They are composed of hydrophilic outer edge and hydrophobic inner cavity [16] . Cyclodextrins mainly include α‐, β‐ and γ‐cyclodextrin [17,18] made up of 6, 7 and 8 glucose units, respectively, [19] and all glucose units are bound into a ring by 1,4‐glycoside bonds. However, due to the small production scale and high price of γ‐cyclodextrin, its application is limited [20] .…”