Templating the Self‐Assembly of Pristine Carbon Nanostructures in Water

Mba, Miriam; Jiménez, Ana I.; Moretto, Alessandro

doi:10.1002/chem.201304912

Cited by 14 publications

(13 citation statements)

References 42 publications

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“…In a recent contribution from our group, the solubilization of C 60 and MWCNTs in water was achieved by a lysine‐based low molecular weight gelator (LMWG) using a mechanochemical approach 33. Two 9‐fluorenylmethoxycarbonyl (Fmoc) groups were employed as π–π stacking moieties on the LMWG, and two free amine moieties ensured the solubility in water (Figure 3) to induce the dispersion of pristine C 60 and MWCNTs and drive their ordered self‐assembly into supramolecular hydrogels with well‐ordered nanoarchitectures.…”

Section: Functionalization Of Cnssmentioning

confidence: 99%

Organic Functionalized Carbon Nanostructures for Functional Polymer‐Based Nanocomposites

et al. 2016

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Carbon nanostructures (CNSs), which are made up of extended sp2-hybridized carbon networks, are largely employed as nanofillers for polymer phases to obtain polymerbased nanocomposites (PNCs). Following their inclusion, the polymer matrices are often improved in many ways, such as enhanced electrical and thermal conductivity, increased stability, and mechanical robustness. The chemical functionalization of the external CNS surfaces with organic substituents is often a key tool for their effective and homogeneous incorporation within a polymer phase, avoiding the formation of aggregates, which can lower the performance of the the final material. This microreview furnishes an overview of PNCs that contain substituted CNSs with organic functionalities. These CNS-based PNCs can be used as organic functional materials in different applications that range from clean energy harvesting and storage to sensing and biomedicine

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Section: Functionalization Of Cnssmentioning

confidence: 99%

Organic Functionalized Carbon Nanostructures for Functional Polymer‐Based Nanocomposites

et al. 2016

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“…Similarly, Fmoc-Phe-Asp-OH and Fmoc-Tyr-Asp-OH hydrogels are able to establish π-π interactions with rGO sheets, resulting in a nanohybrid material of enhanced rigidity [32]. A noncovalent mechanochemical approach is also possible to disperse and incorporate carbon nanostructures (including graphene and fullerenes) into a self-assembled short peptide hydrogel [33]. Glutathione (GSH) is a tripeptide that is an interesting building block for biomaterials, considering its physiological role of free radicals scavenger.…”

Section: Self-assembling Ultra-short Peptide Hydrogelsmentioning

confidence: 99%

The Glitter of Carbon Nanostructures in Hybrid/Composite Hydrogels for Medicinal Use

Iglesias¹,

Bosi²,

Melchionna³

et al. 2016

CTMC

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In recent years, we have witnessed to fast developments in the medicinal field of hydrogels containing various forms of integrated nanostructured carbon that adds interesting mechanical, thermal, and electronic properties. Besides key advances in tissue engineering (especially for conductive tissue, such as for the brain and the heart), there has been innovation also in the area of drug delivery on-demand, with engineered hydrogels capable of repeated response to light, thermal, or electric stimuli. This mini-review focusses on the most promising developments as applied to the gelation of protein/ peptide (including self-assembling amino acids and low-molecular-weight gelators), polysaccharide, and/or synthetic polymer components in medicine. The emerging field of graphene-only hydrogels is also briefly discussed, to give the reader a full flavor of the rising new paradigms in medicine that are made possible through the integration of nanostructured carbon (e.g., carbon nanotubes, nanohorns, nanodiamonds, fullerene, etc.). Nanocarbons are offering great opportunities to bring on a revolution in therapy that the modern medicinal chemist needs to master, to realise their full potential into powerful therapeutic solutions for the patient.

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“…Lehn's pioneering contributions, the bottom-up self-assembly strategy has emerged as one of the most applicable approaches to drive small molecule arrangements. [7][8][9][10][11][12][13][14][15][16][17] More specifically, nanotubes and nanofibers predominate as molecular architectures among the self-assemblies formed by short, unprotected peptides [18][19][20][21] of which the phenylalanine homo-dipeptide H-Phe-Phe-OH is the most extensively investigated example (for review, see ref. 5,6 In this connection, peptides represent powerful building blocks on the nanoscale because of their modularity, molecular diversity, which can be expanded beyond the repertoire of genetically coded amino acids, and secondary structure variety.…”

Section: Introductionmentioning

confidence: 99%

A terminally protected dipeptide: from crystal structure and self-assembly, through co-assembly with carbon-based materials, to a ternary catalyst for reduction chemistry in water

et al. 2016

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A terminally protected, hydrophobic dipeptide Boc-L-Cys(Me)-L-Leu-OMe (1) was synthesized and its 3D-structure was determined by single crystal X-ray diffraction analysis. This peptide is able to hierarchically self-assemble in a variety of superstructures, including hollow rods, ranging from the nano- to the macroscale, and organogels. In addition, 1 is able to drive fullerene (C60) or multiwalled carbon nanotubes (MWCNTs) in an organogel by co-assembling with them. A hybrid 1-C60–MWCNT organogel was prepared and converted (through a high vacuum-drying process) into a robust, high-volume, water insoluble, solid material where C60 is well dispersed over the entire superstructure. This ternary material was successfully tested as a catalyst for: (i) the reduction reaction of water-soluble azo compounds mediated by NaBH4 and UV-light with an overall performance remarkably better than that provided by C60 alone, and (ii) the NaBH4-mediated reduction of benzoic acid to benzyl alcohol. Our results suggest that the self-assembly properties of 1 might be related to the occurrence in its single crystal structure of a sixfold screw axis, a feature shared by most of the linear peptides known so far to give rise to nanotubes.

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Templating the Self‐Assembly of Pristine Carbon Nanostructures in Water

Cited by 14 publications

References 42 publications

Organic Functionalized Carbon Nanostructures for Functional Polymer‐Based Nanocomposites

Organic Functionalized Carbon Nanostructures for Functional Polymer‐Based Nanocomposites

The Glitter of Carbon Nanostructures in Hybrid/Composite Hydrogels for Medicinal Use

A terminally protected dipeptide: from crystal structure and self-assembly, through co-assembly with carbon-based materials, to a ternary catalyst for reduction chemistry in water

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