“Smart” Polylactic Acid Films with Ceftriaxone Loaded Microchamber Arrays for Personalized Antibiotic Therapy

Mordovina, Ekaterina A. and Plastun, Valentina O. and Abdurashitov, Arkady S. and Proshin, Pavel I. and Raikova, Svetlana V. and Bratashov, Daniil N. and Inozemtseva, Olga A. and Goryacheva, Irina Yu. and Sukhorukov, Gleb B. and Sindeeva, Olga A. (2021) “Smart” Polylactic Acid Films with Ceftriaxone Loaded Microchamber Arrays for Personalized Antibiotic Therapy. Pharmaceutics, 14 (1). p. 42. ISSN 1999-4923

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Abstract

Bacterial infections are a severe medical problem, especially in traumatology, orthopedics, and surgery. The local use of antibiotics-elution materials has made it possible to increase the effectiveness of acute infections treatment. However, the infection prevention problem remains unresolved. Here, we demonstrate the fabrication of polylactic acid (PLA) “smart” films with microchamber arrays. These microchambers contain ceftriaxone as a payload in concentrations ranging from 12 ± 1 μg/cm2 to 38 ± 8 μg/cm2, depending on the patterned film thickness formed by the different PLA concentrations in chloroform. In addition, the release profile of the antibiotic can be prolonged up to 72 h in saline. At the same time, on the surface of agar plates, the antibiotic release time increases up to 96 h, which has been confirmed by the growth suppression of the Staphylococcus aureus bacteria. The efficient loading and optimal release rate are obtained for patterned films formed by the 1.5 wt % PLA in chloroform. The films produced from 1.5 and 2 wt % PLA solutions (thickness—0.42 ± 0.12 and 0.68 ± 0.16 µm, respectively) show an accelerated ceftriaxone release upon the trigger of the therapeutic ultrasound, which impacted as an expansion of the bacterial growth inhibition zone around the samples. Combining prolonged drug elution with the on-demand release ability of large cargo amount opens up new approaches for personalized and custom-tunable antibacterial therapy.

Item Type: Article
Uncontrolled Keywords: prolonged release; ultrasound-induced release; drug delivery; microchamber arrays; PLA; antibiotics; ceftriaxone; bacteriological activity; bacterial infections; Staphylococcus aureus
Subjects: European Repository > Medical Science
Depositing User: Managing Editor
Date Deposited: 10 Nov 2022 05:15
Last Modified: 23 Aug 2023 04:15
URI: http://go7publish.com/id/eprint/113

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