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- Title
Color-Variable Photodynamic Antimicrobial Wool/Acrylic Blended Fabrics.
- Authors
Wang, Tingting; Chen, Wangbingfei; Dong, Tingting; Lv, Zihao; Zheng, Siming; Cao, Xiuming; Wei, Qufu; Ghiladi, Reza A.; Wang, Qingqing
- Abstract
Towards the goal of developing scalable, economical and effective antimicrobial textiles to reduce infection transmission, here we prepared color-variable photodynamic materials comprised of photosensitizer (PS)-loaded wool/acrylic (W/A) blends. Wool fibers in the W/A blended fabrics were loaded with the photosensitizer rose bengal (RB), and the acrylic fibers were dyed with a variety of traditional cationic dyes (cationic yellow, cationic blue and cationic red) to broaden their color range. Investigations on the colorimetric and photodynamic properties of a series of these materials were implemented through CIELab evaluation, as well as photooxidation and antibacterial studies. Generally, the photodynamic efficacy of these dual-dyed fabrics was impacted by both the choice, and how much of the traditional cationic dye was employed in the dyeing of the W/A fabrics. When compared with the PS-only singly-dyed material, RB-W/A, that showed a 99.97% (3.5 log units; p = 0.02) reduction of Staphylococcus aureus under visible light illumination (λ ≥ 420 nm, 60 min), the addition of cationic dyes led to a slight decrease in the photoinactivation ability of the dual-dyed fabrics, but was still able to achieve a 99.3% inactivation of S. aureus. Overall, our findings demonstrate the feasibility and potential applications of low cost and color variable RB-loaded W/A blended fabrics as effective self-disinfecting textiles against pathogen transmission.
- Subjects
ACRYLIC textiles; DYES &; dyeing; NATURAL dyes &; dyeing; BLENDED textiles; WOOL; BASIC dyes; ACRYLIC fibers
- Publication
Materials (1996-1944), 2020, Vol 13, Issue 18, p4141
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma13184141