Melt-extrusion 3D printing of resorbable levofloxacin-loaded meshes: Emerging strategy for urogynaecological applications

被引：15

作者：

Corduas, Francesca ^{[1
,2
]}

Mathew, Essyrose ^{[2
]}

McGlynn, Ruairi ^{[1
]}

Mariotti, Davide ^{[1
]}

Lamprou, Dimitrios A. ^{[2
]}

Mancuso, Elena ^{[1
]}

机构：

[1] Ulster Univ, Nanotechnol & Integrated Bioengn Ctr NIBEC, Jordanstown Campus, Newtownabbey BT37 0QB, North Ireland

[2] Queens Univ Belfast, Sch Pharm, Belfast BT9 7BL, Antrim, North Ireland

来源：

MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS | 2021年 / 131卷

基金：

英国工程与自然科学研究理事会;

关键词：

3D printing; Surgical meshes; Antibacterial devices; Drug delivery; Pelvic organ prolapse; Stress urinary incontinence; BIOMECHANICAL PROPERTIES; MECHANICAL-PROPERTIES; SYNTHETIC MESH; VAGINAL MESH; TISSUE; PROLAPSE; COMPLICATIONS; BIOMATERIALS; IMPLANTATION; MANAGEMENT;

D O I：

10.1016/j.msec.2021.112523

中图分类号：

TB3 [工程材料学]; R318.08 [生物材料学];

学科分类号：

0805 ; 080501 ; 080502 ;

摘要：

Current surgical strategies for the treatment of pelvic floor dysfunctions involve the placement of a polypropylene mesh into the pelvic cavity. However, polypropylene meshes have proven to have inadequate mechanical properties and have been associated to the arising of severe complications, such as infections. Furthermore, currently employed manufacturing strategies are unable to produce compliant and customisable devices. In this work, polycaprolactone has been used to produce resorbable levofloxacin-loaded meshes in two different designs (90 degrees and 45 degrees) via melt-extrusion 3D printing. Drug-loaded meshes were produced using a levofloxacin concentration of 0.5% w/w. Drug loaded meshes were successfully produced with highly reproducible mechanical and physico-chemical properties. Tensile test results showed that drug-loaded 45 degrees meshes possessed a mechanical behaviour close to that of the vaginal tissue (E similar or equal to 8.32 +/- 1.85 MPa), even after 4 weeks of accelerated degradation. Meshes released 80% of the loaded levofloxacin in the first 3 days and were capable of producing an inhibitory effect against S. Aureus and E. coli bacterial strains with an inhibition zone equal to 12.8 +/- 0.45 mm and 15.8 +/- 0.45 mm respectively. Thus, the strategy adopted in this work holds great promise for the manufacturing of custom-made surgical meshes with antibacterial properties.

引用

页数：13