Effects of solvents and temperature on spherulites of self-assembled phloroglucinol tristearate

Transformation between Two Types of Spherulitic Growth: Tuning the Morphology of Spherulitic Nitroguanidine in a Gelatin Solution

“…At present, most research works focus on the biomineralization of inorganics 6−9 and the melt crystallization of organics including polymers and small-molecule organics. 2,10,11 Category 1 spherulites are common in melt crystallization, while category 2 spherulites tend to individually occur in the solution or gel. 1,12,13 It is rare to observe the precipitation of two categories of spherulites in the same material system before this work, which confuses researchers to find the connection and difference in the formation mechanism of two categories of spherulitic growth.…”

A bio-inspired silkworm 3D cocoon-like hierarchical self-assembled structure from π-conjugated natural aromatic amino acids

“…The morphology of the supramolecular self-assembled structures of LMW building blocks is greatly influenced by a solvent particularly when the drop-casting method is employed. 15,39,40 These structures exhibit a wide range of hierarchical dimensions, from 0D to 3D. 15,39,40 In this investigation, we made an intriguing discovery: when a solution containing Fmoc-F and Fmoc-Y in ethanol was allowed to evaporate on a glass substrate, the molecules self-assembled into 1D nanofibers that further entangled to form 3D cocoon-like structures.…”

“…15,39,40 These structures exhibit a wide range of hierarchical dimensions, from 0D to 3D. 15,39,40 In this investigation, we made an intriguing discovery: when a solution containing Fmoc-F and Fmoc-Y in ethanol was allowed to evaporate on a glass substrate, the molecules self-assembled into 1D nanofibers that further entangled to form 3D cocoon-like structures. This transformation from 1D nanofibers to 3D cocoon-like structures is a unique observation.…”

Formation and Growth Mechanism of Ceftezole Sodium Monohydrate Ring-Banded Spherulites

“…At present, how to control the formation process of spherulites and thereby the morphology of spherulites is still a big challenge, especially for this kind of ring-banded pattern, which may be affected by various factors, such as viscosity, molecular diffusion, surface tension, field effects, pressure, and temperature . Therefore, it is necessary to ascertain the formation mechanism of different morphologies and summarize the key factors that control ring-banded morphology and the corresponding evolution process in order to get a better understanding of the crystal assembly process and realize the control of spherulite morphology.…”

“…Moreover, the above two kinds of mechanisms (rhythmic growth and fiber twisting) have a synergistic effect in some cases, such as the polyvinylidene fluoride spiral ringed spherulites, which have been simulated to confirm rhythmic growth, 28 and the twisting potassium dichromate, which has been confirmed that the existence of an oscillating concentration field using a laser confocal phase-shift interferometer. 29−31 At present, how to control the formation process of spherulites and thereby the morphology of spherulites is still a big challenge, 32 especially for this kind of ring-banded pattern, which may be affected by various factors, such as viscosity, molecular diffusion, surface tension, field effects, pressure, and temperature. 3 to get a better understanding of the crystal assembly process and realize the control of spherulite morphology.…”