Melt electrowritten poly(caprolactone) lattices incorporated with silver nanoparticles for directional water transport antibacterial wound dressings

Abstract

Excessive biofluid covering wound will result in serious infection which may delay the healing of wound. To manage wound exudate in time and prevent bacterial infection, an antibacterial wound dressing...

Phase Change Material-Embedded Multifunctional Janus Nanofiber Dressing with Directional Moisture Transport, Controlled Release of Anti-Inflammatory Drugs, and Synergistic Antibacterial Properties

“…The breakthrough pressure test was performed according to the previous reports . Briefly, the Janus composite membrane was bound to the end of the tube with a 1.6 cm inner diameter; then, water was injected into the tube from the other end using a syringe.…”

“…The breakthrough pressure test was performed according to the previous reports. 35 Briefly, the Janus composite membrane was bound to the end of the tube with a 1.6 cm inner diameter; then, water was injected into the tube from the other end using a syringe. The height of the water column was considered as the breakthrough pressure until the first water droplet penetrated through the membrane.…”

Fabrication of Janus Composite Membranes with a Gradient Pore Structure Based on Melt Electrowriting and Solution Electrospinning for Directional Water Transport

“…By placing the sample horizontally between the two arrays of sensors, the spreading water behavior on the top and bottom layers of the membranes can be monitored through the changes in resistance. A total of 0.2 g saline dripped continuously onto the top center of the composite membrane for 20 s and the variation of water content was recorded for 120 s. The accumulative one-way transport index ( R ) could evaluate the directional water transport capacity of the PCL/PAN–SiO 2 composite membrane, which can be calculated according to the following equation R = 1 T 0 ∫ [ U b false( T false) − U t false( T false) ] d T where T is the testing time, U t is the water content of the top layer, and U b is the water content of the bottom layer. The overall moisture management capacity (OMMC) can reflect the overall capacity of a fabric to transport liquid moisture, which can be calculated by the combination of three parameters.…”

Introducing Metal–Organic Frameworks to Melt Electrowriting: Multifunctional Scaffolds with Controlled Microarchitecture for Tissue Engineering Applications

“…[ 15 ] Although these and similar approaches have shown great potential for adding new properties to melt‐electrowritten constructs, they typically introduce only one functionality. [ 15–22,8 ]…”

“…[15] Although these and similar approaches have shown great potential for adding new properties to melt-electrowritten constructs, they typically introduce only one functionality. [15][16][17][18][19][20][21][22]8] In this study, we converge MEW, as advanced fabrication technique, with metal-organic frameworks (MOFs), a class of promising yet underexploited materials, to obtain multifunctional scaffolds. MOFs are solid-state coordination polymers that consist of metal nodes, either ions or clusters, connected by multitopic organic linkers resulting in porous, open framework structures.…”