ArticleDrug delivery and translational research2026
Impact of chain-length of sulfhydryl-modified surface-decorated surfactants on mucoadhesive nanostructured lipid carriers.
Article in Drug delivery and translational research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Nanostructured lipid carriers (NLCs) decorated with sulfhydryl-modified surfactants have recently gained attention for delivering BCS Class IV drugs. However, the impact of the chain-length of these surfactants on the permeation and bioavailability properties of NLCs is still unknown. Therefore, this study investigates the effect of surfactant chain-length on the mucoadhesive, permeation, and bioavailability properties of NLCs. For this purpose, short- and long-chain sulfhydryl-modified polyethoxylated surfactants were generated to develop mucoadhesive NLCs and loaded with the model drug aprepitant (APT). NLCs were characterized and assessed for comprehensive physicochemical and biological evaluations. Moreover, in-vivo studies were performed for proof-of-concept to show enhanced oral drug bioavailability. NLCs showed particle size under 200 nm with 6.9 and 6.7% drug loading and 85 and 84% drug entrapment for short- and long-chain surfactants, respectively. The drug-loaded NLCs were safe and stable, and short- and long-chain surfactants containing NLCs exhibited 11.6- and 9.6-fold enhanced mucoadhesion, respectively. Moreover, in comparison to long-chain sulfhydryl-modified surfactant, short-chain surfactant is transported into deeper segments of mucus due to less interaction with the mucus. Similarly, short-chain sulfhydryl-modified surfactants showed significantly enhanced cellular permeation across Caco-2 cell lines. Furthermore, the long-chain sulfhydryl-modified surfactants showed 4.38-fold enhanced C
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