Production of Janus/Hecate microfibers by microfluidic photopolymerization and evaluation of their potential in dye removal

Abstract

The microfluidic production of Janus/Hecate polymer microfibers with well-defined interfaces from miscible phases is reported. The process offers the tunability of the width and composition of each part constituting the...

Microfluidic Janus fibers with dual thermoresponsive behavior for thermoactuation

“…This feature should provide flexibility to design the Janus fibers according to the needs by controlling the thermoresponsive behavior through the composition of one part of the Janus fiber and the mechanical properties through the other one as previously demonstrated. [32] Fig. 9.…”

“…Herein, we report the microfluidic preparation of actuators based on tunable thermoresponsive Janus fibers. Microfluidic spinning using a side-by-side capillary-based device offers the possibility to control various features of the fibers including their diameter, [31] their morphology (Janus and Hecate), [32] but also the composition of the fibers as they can be produced from pre-existing polymers or by photopolymerization of monomers during the fiber process. These Janus fibers were produced to afford fibers with one part being thermoresponsive starting from a monomer known to form polymers exhibiting a LCST-type behavior, and the second one non-thermoresponsive as depicted in Fig.…”

“…2) in each part of the Janus fiber and their potential as thermoactuators. The thermoresponsive Janus fibers were prepared using a side-by-side capillary-based microfluidic system [32] with three phases: i) a first core phase that will produce the thermoresponsive part of the Janus fiber (Φ c1 ), ii) a second core phase leading to the non-thermoresponsive one (Φ c2 ), and iii) the sheath phase (Φ s ). Φ c1 was a ternary monomer system, composed of tri(ethylene glycol) acrylate (EG photoinitiator in ethanol (20 v% relative to EG 3 A and EEA).…”

Coupling Oscillating–Swirling–Coflowing: A Microfluidic Strategy for Superior Safety and Output Performance of Core–Shell Energetic Microspheres

“…However, this strategy is still limited in the field of materials modification. Microfluidics modulates fluids in microscale channels and has broad applications in the design and implementation of high-quality materials. − From the needs of core–shell modification and continuous spheroidization, it can be seen that coupling oscillating–swirling–coflowing microfluidics will provide new opportunities for the design and creation of microspheres with superior core–shell structures via spray-drying. − …”

Concave octopus-like PtCu nanoframe mediated photo-electro Fenton catalysis for fast organic dyestuff elimination

“… 12 All these deficiencies restrict the functionality available for water purification applications and organic pollutant treatment. 13 More effective endeavors are needed for the research and development necessary to develop new strategies for resolving environmental problems.…”