(Calcium‐Phosphate)/Carrageenan Gardens Grown from the Gel/Liquid Interface

Abstract

In this study, a gel/liquid interface is utilized for growing a new (calcium‐phosphate)/carrageenan garden. The hydrogels are made from carrageenan loaded with either sodium phosphate or calcium chloride, while the interfaced solution contains a source of the salt not used in the hydrogels (i. e. the sodium‐phosphate hydrogel with the calcium‐chloride solution and vice versa). The physical and chemical properties of tubes grown from both systems of the same amount of carrageenan have been reported. Interestingly, when varying the amounts of carrageenan (and thus controlling the stiffness of the phosphate‐hydrogel system), it is possible to control the thickness and height of the tubes.

CuS‐Carrageenan Composite Grown from the Gel/Liquid Interface

“…However, some examples of non‐traditional gardens have been reported such as the 2D gardens, organic gardens, and garden of cement nanotubes [6–8] . More interesting morphologies as well as physical and chemical properties have been found when chemobrionics evolves a gel/liquid interface [9–12] . The gel (or hydrogel) herein is formulated from water‐soluble biopolymers with salts.…”

Formation and growth of lithium phosphate chemical gardens

“…Recently an extension of this technique has utilized an interface of a liquid in contact with a gel containing one of the reactants that can lead to thin precipitate tubes. 36,37 In our study, we will demonstrate that chemical gardens can evolve from an alkaline metal precipitate and will characterize…”

“…Recently, an extension of this technique has utilized an interface of a liquid in contact with a gel containing one of the reactants, which can lead to thin precipitate tubes. 36,37…”

Self-Propelled Chemical Garden Tubes

“…The hollow structures can be catalytically active, have an outer silica-rich layer, and have diameters between a few micrometers and several millimeters . Furthermore, the tube growth can be controlled by simple injection methods , and yields diverse product materials, including metal oxides, quantum dots, carbonates, polyoxometalates, and polymeric materials …”

“…27 growth can be controlled by simple injection methods 28,29 and yields diverse product materials, including metal oxides, quantum dots, 30 carbonates, 31 polyoxometalates, 32 and polymeric materials. 33 By applying this intriguing type of chemical self-organization to self-motion research, we take first steps to remove technical limitations in the production of microrockets and widen their compositional and reactive possibilities. In addition, the larger units studied here allow for closer analyses of the propulsion mechanism that yield new insights into the physicochemical processes causing the motion of catalyst tubes.…”