Controllable hierarchical self-assembly of porphyrin-derived supra-amphiphiles

Abstract

Control of self-assembly is significant to the preparation of supramolecular materials and illustration of diversities in either natural or artificial systems. Supra-amphiphiles have remarkable advantages in the construction of nanostructures but control of shape and size of supramolecular nanostructures is still a great challenge. Here, we fabricate a series of supra-amphiphiles by utilizing the recognition motifs based on a heteroditopic porphyrin amphiphile and its zinc complex. These porphyrin amphiphiles can bind with a few guests including Cl – , coronene, C 60 , 4,4′-bipyridine and 2,4,6-tri(pyridin-4-yl)-1,3,5-triazine, which are further applied to facilitate the controllable self-assembly. Addition of these guests result in the formation of various supra-amphiphiles with well-defined structures, thus induce the generation of different aggregates. A diverse of aggregation morphologies including nanospheres, nanorods, films, spheric micelles, vesicles and macrowires are constructed upon the influence of specific complexation, which highlights the present work with abundant control on the shapes and dimensions of self-assemblies.

Supramolecular Porphyrin Nanostructures Based on Coordination-Driven Self-Assembly and Their Visible Light Catalytic Degradation of Methylene Blue Dye

“…The fabrication of highly ordered and diversified morphologies of nano- and micro-structured optoelectronic materials is of great contemporaneous interest, especially for their applications in catalysis, sensing, solar energy conversion, and storage [ 1 , 2 , 3 , 4 , 5 , 6 ]. Among the various building blocks, porphyrins are attractive components for the construction of self-assembled nanomaterials with well-defined shapes and dimensions [ 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ].…”

Self‐Assembled Binaphthyl‐Bridged Amphiphilic AABB Phthalocyanines: Nanostructures for Efficient Antimicrobial Photodynamic Therapy

“…Interestingly, this approach avoids multistep fabrication of complex nano‐delivery systems, and circumvents poor therapeutic outcomes associated to the low concentration of drug loading. In this regard, several nanostructured Pors have shown significant potential in phototheranostic applications [25–27] . Regarding Pc‐based systems, there are some reports describing the formation of nanoparticles [28] by self‐assembly from positively charged, A 3 B Zn II Pc [29, 30] and A 4 Zn II Pc [31] amphiphiles in water, which are used as PS systems for photodynamic and photothermal therapies.…”

Higher-order interfiber interactions in the self-assembly of benzene-1,3,5-tricarboxamide-based peptides in water

“…[2][3][4][5] Mimicking such interactions in aqueous media with synthetic supramolecular systems remains a formidable task due to the complex and frequently counterintuitive self-assembly mechanisms. 6 In the last few decades multiple supramolecular systems with hierarchical self-assembly were reported, including coordination complexes, [7][8][9] porphyrins, 10 different peptides [11][12][13][14] including di-and tri-peptides with different motifs; 15,16 as well as synthetic 17,18 and natural 19,20 polymers. Multi-level control over self-assembly has paved the way for the development of novel advanced materials in medicine and industry; [21][22][23] however, their complexity remains distant from that observed in nature.…”