Self-assembled gel tubes, filaments and 3D-printing within situmetal nanoparticle formation and enhanced stem cell growth

Abstract

Simple fabrication and 3D-printing methods are used to generate tubes and filaments from self-assembled gels, which can be loaded in situ with gold nanoparticles, with the resulting gels encouraging stem cell proliferation.

Wet-spinning multi-component low-molecular-weight gelators to print synergistic soft materials

“…1), giving very stable 3D-printed objects. 12 Here, we extend this to a second LMWG -pHresponsive DBS-COOH (Fig. 1).…”

“…IR spectroscopy found that the N-H stretch shifted from a sharp band at 3295 cm À1 for filaments formed by DBS-CONHNH 2 12 to a broader band from 3180-3290 cm À1 for the two-component filament (Fig. S18 and S19, ESI †).…”

Multi-layer 3D printed dipeptide-based low molecular weight gels

“…Unlike chemical gels, some supramolecular gels can be pre-formed and extruded, [20][21][22] instead of gelation solely occurring post-printing. 3,23,24 This conceptually enables the properties of the final printed material to be predefined by the gel chosen to be extruded. 20 However, this assumption is dependent on the gel being printable after formation and the effect of extrusion on the materials properties.…”

“…20,25 Most examples of 3D printed low molecular weight gels are systems printed with layers formed from a single gelator. 18,20,[23][24][25] Whilst a logical starting point with which to optimise material requirements and printing parameters, 20 this may limit the functionality of these systems. 3D printed gels have the advantage of being produced in shapes other than simply that of the vessel or mould in which they are prepared, 2 and they also enable the ability to form heterogenous constructs.…”

Encapsulation of the Hoveyda–Grubbs 2nd generation catalyst in magnetically separable alginate/mesoporous carbon beads for olefin metathesis reactions in water

“…In addition, alginate gels are also utilized along with supramolecular gels to obtain hybrid core/shell hydrogel beads for the Suzuki–Miyaura reactions that are catalyzed by in situ generated Pd(0) nanoparticles. 12…”