1D materials from ionic self-assembly in mixtures containing chromonic liquid crystal mesogens

Abstract

One-dimensional materials including carbon nanofibers can be produced from the ionic self-assembly of porphyrin-based chromonic mesogens.

Bio-catalytic nanoparticle shaping for preparing mesoscopic assemblies of semiconductor quantum dots and organic molecules

“…A porphyrin analog, TCPP, was chosen because its optical, electronic, and photophysical properties are sensitive to the surrounding environment, making it suitable as a probe. [42][43][44] A series of ms-TCPP were prepared by changing the ratio of starting TCPP and lysine molecules in the 1 : 4, 1 : 16, 1 : 64, and 1 : 256 ratios (mol : mol) to prepare large sedimentations (Fig. 3A).…”

Functional Nano-Objects by Electrostatic Self-Assembly: Structure, Switching, and Photocatalysis

“…Assemblies of tetrakis (4-carboxyphenyl)porphyrin and tetrakis (1-methylpyridinium-4-yl)porphyrin p -toluenesulfonate are organic crystalline nanofibers that show an aggregation-induced chromism ( Rodríguez-Abreu et al, 2020 ). In all these structures, it is again taken advantage of combining two different non-covalent interactions, in this case, electrostatics and π-π interactions.…”

“…Anionic tetra-(4-sulfonatophenyl)porphyrin and cationic tetra-(N-methyl-4-pyridyl)porphyrin form ionic organic solid microneedles with various ratios as depicted in Figure 2, which are photocatalytic active (Düring et al, 2018). Assemblies of tetrakis (4-carboxyphenyl)porphyrin and tetrakis (1-methylpyridinium-4-yl)porphyrin p-toluenesulfonate are organic crystalline nanofibers that show an aggregationinduced chromism (Rodríguez-Abreu et al, 2020). In all these structures, it is again taken advantage of combining two different non-covalent interactions, in this case, electrostatics and π-π interactions.…”

Porphyrin-Based Nanomaterials for the Photocatalytic Remediation of Wastewater: Recent Advances and Perspectives

“…Numerous intermolecular non-covalent interactions (π-π stacking interactions; hydrogen bonding interactions; electrostatic, hydrophobic, and hydrophilic interactions; and metal-ligand coordination) are accountable for the self-aggregation of free porphyrin or metalloporphyrin compounds [41][42][43][44][45]. Unlike inorganic nanostructures, self-assembled porphyrin nanostructures are formed using several methods, including ionic self-assembly [46,47], reprecipitation [48,49], metal-ligand coordination [50,51], sonication-assisted self-assembly [52,53], and surfactant-assisted methods [54,55]. The morphologies of these organic nanostructures are not always uniform and are not suitable for numerous practical applications.…”