Non-Traditional Aromatic Topologies and Biomimetic Assembly Motifs as Components of Functional Pi-Conjugated Oligomers

Tovar, John D.; Diegelmann, Stephen R.; Peart, Patricia A.

doi:10.3390/ma3021269

Cited by 3 publications

(2 citation statements)

References 42 publications

(44 reference statements)

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“…Tovar et al flanked a bithiophene between two watersoluble, b-sheet forming peptapeptides. 12f, 28 In contrast to the threo/val sequences, these systems produced self-supporting hydrogel networks characteristic of amyloid fibrils containing extensive p-p interactions (Fig. 1d).…”

Section: Amphiphilic Peptide Assemblymentioning

confidence: 98%

A model for the controlled assembly of semiconductor peptides

Kim

Parquette

2012

Nanoscale

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The self-assembly of small molecules provides a potentially powerful method to create functional nanomaterials for many applications ranging from optoelectronics to oncology. However, the design of well-defined nanostructures via molecular assembly is a highly empirical process, which severely hampers efforts to create functional nanostructures using this method. In this review, we describe a simple strategy to control the assembly of functionalized peptides by balancing attractive hydrophobic effects that drive assembly with opposing electrostatic repulsions. Extended π-π contacts are created in the nanostructures when assembly is driven by π-stacking interactions among chromophores that are appended to the peptide. The formation of insoluble β-sheet aggregates are mitigated by incorporating charged side-chains capable of attenuating the assembly process. Although the application of this approach to the assembly of organic semiconductors is described, we expect this strategy to be effective for many other functional organic materials.

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Section: Amphiphilic Peptide Assemblymentioning

confidence: 98%

A model for the controlled assembly of semiconductor peptides

Kim

Parquette

2012

Nanoscale

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“…Supramolecular assembly of π-conjugated, molecular building blocks into 1-D nanostructures including wires, ribbons, fibers, and tubes is full of interest in connection with the construction of long-range intermolecular π-stacking in nanostructured materials. ,,,, The self-assembly of p-type molecules into fibrous morphologies are attracting predominant interest, ,, while the formation of nanotubular architectures based on the self-organization of n-type molecules is limited. ,, Parquette et al achieved the construction of a 1-D n-type RFBMNT self-assembled from a single-head or bipolar head amphiphiles, that is, NDI–lysine conjugate or the NDI derivative bearing two l -lysine headgroups, respectively.…”

Section: Physical Properties Functions and Applicationsmentioning

confidence: 99%

Soft-Matter Nanotubes: A Platform for Diverse Functions and Applications

2020

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Self-assembled organic nanotubes made of single or multiple molecular components can be classified into soft-matter nanotubes (SMNTs) by contrast with hard-matter nanotubes, such as carbon and other inorganic nanotubes. To date, diverse self-assembly processes and elaborate template procedures using rationally designed organic molecules have produced suitable tubular architectures with definite dimensions, structural complexity, and hierarchy for expected functions and applications. Herein, we comprehensively discuss every functions and possible applications of a wide range of SMNTs as bulk materials or single components. This Review highlights valuable contributions mainly in the past decade. Fifteen different families of SMNTs are discussed from the viewpoints of chemical, physical, biological, and medical applications, as well as action fields (e.g., interior, wall, exterior, whole structure, and ensemble of nanotubes). Chemical applications of the SMNTs are associated with encapsulating materials and sensors. SMNTs also behave, while sometimes undergoing morphological transformation, as a catalyst, template, liquid crystal, hydro-/organogel, superhydrophobic surface, and micron size engine. Physical functions pertain to ferro-/piezoelectricity and energy migration/storage, leading to the applications to electrodes or supercapacitors, and mechanical reinforcement. Biological functions involve artificial chaperone, transmembrane transport, nanochannels, and channel reactors. Finally, medical functions range over drug delivery, nonviral gene transfer vector, and virus trap.

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Aqueous Self‐Assembly of L‐Lysine‐Based Amphiphiles into 1D n‐Type Nanotubes

Shao¹,

Gao²,

Kim³

et al. 2011

Chemistry A European J

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We prepared novel semi‐interpenetrating polymer network (semi‐IPN) materials by mixing poly(ester urethane), synthesized by the polymerization reaction between poly(ethylene glycol adipate) and toluene diisocyanate in the presence of 2,2‐bis(hydroxyl methyl) propionic acid as an extender, with nitrokonjac glucomannan (NKGM) in tetrahydrofuran and then by crosslinking and curing the mixture at 60°C for 1.5 h. Miscibility and the properties of the sheets were studied by Fourier transition infrared spectroscopy, wide‐angle X‐ray diffraction, differential scanning calorimetry (DSC), and scanning electron microscopy. The results indicate that strong interactions between poly(ester urethane) and NKGM in the semi‐IPN sheets occurred, leading to good miscibility between the two polymers in the whole region of component ratios. When the content of NKGM was 10%, the tensile strength and breaking elongation of the semi‐IPN sheet were simultaneously enhanced to 35 MPa and 960%, respectively, compared with pure polyurethane. The DSC curves showed a low softening temperature for the poly(ester urethane), which resulted in the high elongation. By changing the NKGM amount from 10 to 90%, we prepared a series of composite materials from an elastomer to tough plastics. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 2224–2228, 2003

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Non-Traditional Aromatic Topologies and Biomimetic Assembly Motifs as Components of Functional Pi-Conjugated Oligomers

Cited by 3 publications

References 42 publications

A model for the controlled assembly of semiconductor peptides

A model for the controlled assembly of semiconductor peptides

Soft-Matter Nanotubes: A Platform for Diverse Functions and Applications

Aqueous Self‐Assembly of L‐Lysine‐Based Amphiphiles into 1D n‐Type Nanotubes

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