From vesicles to solid spheres: terminal functional group induced morphology modification

Wang, Qi; Wu, Junchen; Gong, Zuguang; Zou, Ying; Yi, Tao; Huang, Chunhui

doi:10.1039/b927579g

Cited by 18 publications

(12 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The G ′′ values showed some fluctuations at an angular frequency of ≤1 rad s −1 . The constant values of G ′ and G ′′ with increasing angular frequency indicated that an energy‐storage process occurred without energy dissipation, which also confirmed that the three gels have a good elastic character …”

Section: Resultssupporting

confidence: 56%

“…[57] The G' values of GC, GN,a nd GO gels were about 3.3 10 4 ,1 .3 10 4 , and 9.9 10 3 Pa, respectively.T he G'' values showed some fluctuations at an angular frequency of 1rad s À1 .T he constant values of G' and G'' with increasing angular frequency indicated that an energy-storage process occurred without energy dissipation, which also confirmed that the three gels have ag ood elastic character. [87,88] The thixotropic behavior of gels GC, GN,a nd GO in different solvents was also investigated. Gelso fGC, GN,a nd GO could be converted to as ol under the stimulus of mechanical force.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Steric‐Structure‐Dependent Gel Formation, Hierarchical Structures, Rheological Behavior, and Surface Wettability

Cao

Zhao

et al. 2016

Chemistry An Asian Journal

Self Cite

View full text Add to dashboard Cite

A series of bicholesteryl-based gelators with different central linker atoms C, N, and O (abbreviated to GC, GN, and GO, respectively) have been designed and synthesized. The self-assembly processes of these gelators were investigated by using gelation tests, field-emission scanning electron microscopy, field-emission transmission electron microscopy, UV/Vis absorption, IR spectroscopy, X-ray diffraction, rheology, and contact-angle experiments. The gelation ability, self-assembly morphology, rheological, and surface-wettability properties of these gelators strongly depend on the central linker atom of the gelator molecule. Specifically, GC and GN can form gels in three different solvents, whereas GO can only form a gel in N,N-dimethylformamide (DMF). Morphologies from nanofibers and nanosheets to nanospheres and nanotubes can be obtained with different central atoms. Gels of GC, GN, and GO formed in the same solvent (DMF) have different tolerances to external forces. All xerogels gave a hydrophobic surface with contact angles that ranged from 121 to 152°. Quantum-chemical calculations indicate that the GC, GN, and GO molecules have very different steric structures. The results demonstrate that the central linker atom can efficiently modulate the molecular steric structure and thus regulate the supramolecular self-assembly process and properties of gelators.

show abstract

Section: Resultssupporting

confidence: 56%

Section: Resultsmentioning

confidence: 99%

Steric‐Structure‐Dependent Gel Formation, Hierarchical Structures, Rheological Behavior, and Surface Wettability

Cao

Zhao

et al. 2016

Chemistry An Asian Journal

Self Cite

View full text Add to dashboard Cite

show abstract

“…A single functional group able to determine the formation of vesicles in non-typical amphiphilic system is rarely encountered. 74 (MLVs) of dipalmitoylphosphatidylcholine (DPPC) was studied. Attenuated total reflectance IR (ATR-IR) spectroscopy combined with 31P-NMR enabled observing a cut-off effect for the longest homologus.…”

Section: Thermotropic Liquid Crystalsmentioning

confidence: 99%

NMR of liquid crystals and micellar solutions

D’Errico¹,

Paduano²

2011

Nuclear Magnetic Resonance

View full text Add to dashboard Cite

“…[6][7][8][9][10][11] Because of the ordered micromorphology, controllable size and function, and good biocompatibility, these materials are expected to be applied in the areas of cell biology research, [12][13][14][15] synthesis of new kinds of inorganic nano-materials, 16 micro-nanoelectronic devices, 17 catalysis, 18 and so on. [20][21][22] However, how to manipulate the designed building blocks to formulate the desired novel nanostructure materials is still one of the main challenges. [20][21][22] However, how to manipulate the designed building blocks to formulate the desired novel nanostructure materials is still one of the main challenges.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of multiplicate nanostructures via manipulation of the self-assembly between an adamantane based gelator and cyclodextrin

et al. 2013

Self Cite

View full text Add to dashboard Cite

Four kinds of nanostructural morphologies, ribbons, orderly patterned threads, tubes and vesicles, were obtained in a two-component self-assembly system of an adamantane based gelator and b-cyclodextrins (CD) via host-guest interactions and solvent tuning. First, the gelator was gelled in DMF giving a nanoribbon structure. Then, interestingly, by simple addition of b-CD into DMF solution of the gelator, the morphology of the two-component gel was changed to orderly parallel arranged nanothreads with uniform size, and further evolved into nanotubes and nanovesicles when different volume ratios of water were subsequently added. Thus, a simple method was achieved to prepare different morphologies of nanomaterials by adjustment of the self-assembly process. The formation mechanism of the specific morphologies was investigated through a variety of experimental methods such as NMR, FTIR, XRD, etc. The intermolecular interactions between the gelator and b-CD and the hydrophobic cavity of b-CD were assumed as the main driving forces for the evolution of the morphologies.

show abstract

From vesicles to solid spheres: terminal functional group induced morphology modification

Cited by 18 publications

References 49 publications

Steric‐Structure‐Dependent Gel Formation, Hierarchical Structures, Rheological Behavior, and Surface Wettability

Steric‐Structure‐Dependent Gel Formation, Hierarchical Structures, Rheological Behavior, and Surface Wettability

NMR of liquid crystals and micellar solutions

Fabrication of multiplicate nanostructures via manipulation of the self-assembly between an adamantane based gelator and cyclodextrin

Contact Info

Product

Resources

About