A clickable, highly soluble oligopeptide that easily forms organogels

Gong, Ruiying; Song, Yubao; Guo, Zongxia; Li, Ming; Jiang, Yi; Wan, Xin

doi:10.1080/10610278.2013.766735

Cited by 18 publications

(9 citation statements)

References 37 publications

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“…According to the type of the three dimensional network, these structures can be divided in two main classes; covalently cross-linked materials, and those that are formed through physical interactions and entangled networks. 6,7 Examples of organogelators include porphyrins, 8 oligopeptides, 9 amino acids, 10 ureas, 11 fatty alcohols, 12 lecithins 13,14 and phytosterols. Despite not extensively studied, organogelation is a topic with rapidly growing interest and is of high importance.…”

Section: Introductionmentioning

confidence: 99%

Polymer organogelation with chitin and chitin nanocrystals

Nikiforidis

Scholten

2015

RSC Adv.

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In this paper, we show that biodegradable and biocompatible organogels can be formed with chitin as the filler material and triglycerides as the continuous hydrophobic phase. When crude chitin was used, a large degree of aggregation was observed that prevented the formation of stable organogels. Two approaches were used to diminish this degree of aggregation and increase the stability. Either surfactants were used to increase the dispersability of the crude chitin, or the crude chitin was transformed into smaller rodlike nanocrystals by acid hydrolysis. Both approaches led to the formation of stable organogels with storage moduli up to 10 6 Pa for high chitin concentrations (20 wt%). Three different types of surfactants were used, namely phosphatidylcholine, enzymatically modified phosphatidylcholine and sorbitan monostearate (Span 60). The choice of surfactant has a large influence on the gel strength and the temperature sensitivity of the gels. With chitin nanocrystals, in the presence of surfactants, larger gel strengths were observed for lower concentrations (1-10 wt%), indicating more efficient packing of the particles. Gels were stable even after addition of considerable amounts of water up to 25 wt%. The increase in gel strength in the presence of water (storage modulus) was most likely an effect of the water absorption ability of chitin that increased the effective volume fraction of the fillers.

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Section: Introductionmentioning

confidence: 99%

Polymer organogelation with chitin and chitin nanocrystals

Nikiforidis

Scholten

2015

RSC Adv.

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“…For the pure P gel (see Scheme a), antiparallel β‐sheets were formed through hydrogen bonds between peptide segments and the hierarchical self‐assembly of the secondary structures of P into intertwined belt structures then three‐dimensional networks. It should be noted that the azide–azide interactions play an important role in the peptide packing because butyl‐GVGV‐OMe failed to form gels 36b. 43…”

Section: Resultsmentioning

confidence: 99%

“…Herein, we present our results. We selected two oligothiophenes, without and with the carboxylic acid group,36a namely, 3,3′′′‐di‐ n ‐octyl‐2,2′;5′,2′′;5′′,2′′′‐quarterthiophene (QT) and 3,3′′′‐di‐ n ‐octyl‐2,2′;5′,2′′;5′′,2′′′‐quarterthiophene‐5,5′′′‐dicarboxylic acid (QTDA; Figure 1), to investigate their self‐assembly behavior in the presence of the oligopeptide (P) designed by our group (Figure 1), which has a strong tendency to self‐assemble 36b. It was observed that the self‐assembly behavior is strongly dependent on the presence or absence of the carboxylic acid group on the oligothiophene.…”

Section: Introductionmentioning

confidence: 99%

Oligopeptide‐Assisted Self‐Assembly of Oligothiophenes: Co‐Assembly and Chirality Transfer

Guo

Gong

et al. 2014

Chemistry An Asian Journal

Self Cite

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The biomolecule-assisted self-assembly of semiconductive molecules has been developed recently for the formation of potential bio-based functional materials. Oligopeptide-assisted self-assembly of oligothiophene through weak intermolecular interactions was investigated; specifically the self-assembly and chirality-transfer behavior of achiral oligothiophenes in the presence of an oligopeptide with a strong tendency to form β-sheets. Two kinds of oligothiophenes without (QT) or with (QTDA) carboxylic groups were selected to explore the effect of the end functional group on self-assembly and chirality transfer. In both cases, organogels were formed. However, the assembly behavior of QT was quite different from that of QTDA. It was found that QT formed an organogel with the oligopeptide and co-assembled into chiral nanostructures. Conversely, although QTDA also formed a gel with the oligopeptide, it has a strong tendency to self-assemble independently. However, during the formation of the xerogel, the chirality of the oligopeptide can also be transferred to the QTDA assemblies. Different assembly models were proposed to explain the assembly behavior.

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“…Show good properties in gelating with metal ions actions and van der Waals interactions, play an important (29)(30)(31). For instance, the terpyridyl-based ligands have role in self-assembling LMWGs to form entangled been effectively shown to form gels with platinum salts nanostructures (3,4). Recently, LMWGs have received and their photophysical properties were investigated.…”

Section: Please Scroll Down For Articlementioning

confidence: 98%

A silver-induced metal-organic gel based on biscarboxyl-functionalised benzimidazole derivative: stimuli responsive and dye sorption

Zhang

You

Yao

et al. 2013

Supramolecular Chemistry

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2014) A silver-induced metal-organic gel based on biscarboxyl-functionalised benzimidazole derivative: stimuli responsive and dye sorption, Supramolecular Chemistry, 26:1, 39-47, A multi-responsiveness supramolecular metal-organic gel (MOG) has been prepared by using silver (I) nitrate and a simple ligand (L17) based on a biscarboxyl-functionalised benzimidazole derivative. The MOG that displays the formation of welldeveloped nanofibrillar networks composed of intertwined fibres was characterised by using field emission scanning electron microscopy (FESEM), Fourier transform infrared (FT-IR) spectroscopy and powder X-ray diffraction (XRD) techniques. The FT-IR spectra and XRD show that supramolecular MOG was formed through an effective coordination of the ligand and Ag þ . This MOG reveals outstanding reversible sol-gel transitions induced by changes of temperature and pH, as well as by addition of NH 4 OH, ethylene diamine tetraacetic acid and Na 2 S. In addition, the MOG also shows a good ability in dye sorption. These results demonstrate that this multichannel responsive smart MOG has the potential to be widely applied in materials science.

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A clickable, highly soluble oligopeptide that easily forms organogels

Cited by 18 publications

References 37 publications

Polymer organogelation with chitin and chitin nanocrystals

Polymer organogelation with chitin and chitin nanocrystals

Oligopeptide‐Assisted Self‐Assembly of Oligothiophenes: Co‐Assembly and Chirality Transfer

A silver-induced metal-organic gel based on biscarboxyl-functionalised benzimidazole derivative: stimuli responsive and dye sorption

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