Mogrovejo-Valdivia Alejandra, Maton Mickael, Garcia-Fernandez Maria Jose, Tabary Nicolas, Chai Feng, Neut Christel, Martel Bernard, Blanchemain Nicolas
U1008 Advanced Drug Delivery Systems, Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Régional Universitaire de Lille (CHU Lille), University of Lille, 59000 Lille, France.
UMR 8207, UMET-Unité Matériaux et Transformations, Centre National de la Recherche Scientifique (CNRS), Institut National de la Recherche Agronomique (INRA), Ecole Nationale Supérieure de Chimie de Lille (ENSCL), University of Lille, 59655 Lille, France.
Antibiotics (Basel). 2021 Jul 2;10(7):805. doi: 10.3390/antibiotics10070805.
This study consisted of developing a dressing loaded with silver (Ag) and ibuprofen (IBU) that provides a dual therapy, antibacterial and antalgic, intended for infected painful wounds. Therefore, non-woven polyethyleneterephtalate (PET) textiles nonwovens were pre-treated by cyclodextrin crosslinked with citric acid by a pad/dry/cure process. Then, textiles were impregnated in silver solution followed by a thermal treatment and were then coated by Layer-by-Layer (L--L) deposition of a polyelectrolyte multilayer (PEM) system consisting of anionic water-soluble poly(betacyclodextrin citrate) (PCD) and cationic chitosan. Finally, ibuprofen lysinate (IBU-L) was loaded on the PEM coating. We demonstrated the complexation of IBU with native βCD and PCD by phase solubility diagram and H NMR. PEM system allowed complete IBU-L release in 6 h in PBS pH 7.4 batch (USP IV). On the other hand, microbiological tests demonstrated that loaded silver induced bacterial reduction of 4 Log against and and tests revealed that ibuprofen lysinate loading did not interfere with the antibacterial properties of the dressing.
本研究包括开发一种负载银(Ag)和布洛芬(IBU)的敷料,该敷料提供抗菌和止痛的双重治疗,用于感染性疼痛伤口。因此,通过轧染/干燥/固化工艺,用与柠檬酸交联的环糊精对非织造聚对苯二甲酸乙二酯(PET)织物进行预处理。然后,将织物浸渍在银溶液中,接着进行热处理,随后通过由阴离子水溶性聚(β-环糊精柠檬酸盐)(PCD)和阳离子壳聚糖组成的聚电解质多层(PEM)系统的逐层(L - L)沉积进行涂层。最后,将赖氨酸布洛芬(IBU - L)负载在PEM涂层上。我们通过相溶解度图和1H NMR证明了IBU与天然βCD和PCD的络合。PEM系统在pH 7.4的PBS批次(USP IV)中6小时内实现了IBU - L的完全释放。另一方面,微生物学测试表明,负载的银对金黄色葡萄球菌和大肠杆菌的细菌减少量达到4个对数,并且测试显示赖氨酸布洛芬的负载不会干扰敷料的抗菌性能。