Ultrastrong, Transparent Polytruxillamides Derived from Microbial Photodimers

Tateyama, Seiji; Masuo, Shunsuke; Suvannasara, Phruetchika; Oka, Yuuki; Miyazato, Akio; Yasaki, Katsuaki; Teerawatananond, Thapong; Muangsin, Nongnuj; Zhou, Shengmin; Kawasaki, Yukie; Zhu, Liping; Zhou, Zhemin; Takaya, Naoki; Kaneko, Tatsuo

doi:10.1021/acs.macromol.6b00220

Cited by 50 publications

(69 citation statements)

References 27 publications

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“…Light transmittance of the networks versus wave length and images of the networks are given in Figure S9, Supporting Information, and the data are summarized in Table S1, Supporting Information. The networks (0.5 mm thick) are highly homogeneous and transparent since they have average 90% transmittance within the range of visible light, and the transmittance is at the same level with those highly transparent materials in literature . As discussed above, the fact that all the networks have sharp and uniform glass transition is a solid evidence for the high homogeneity.…”

Section: Methodsmentioning

confidence: 72%

Synthesis and Properties of Networks Based on Thiol‐ene Chemistry Using a CO₂‐Based δ‐Lactone

Chen

Ling

et al. 2018

Macromol. Rapid Commun.

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3-Ethylidene-6-vinyltetrahydro-2H-pyran-2-one, a divinyl δ-lactone derived from CO and 1,3-butadiene, is used for the synthesis of networks with various compositions through the thiol-ene click reaction with di- and tri-thiol compounds. Thermal, mechanical, and optical properties of the networks are characterized. The networks have sharp and uniform glass transitions and show good thermal stability with T from 287 to 332 °C. Mechanical properties of the networks can be adjusted by the cross-link density; 6.18 MPa of tensile strength, 574% break elongation and 1.84 of tan δ at maximum are reached. Metal complexation makes the networks tougher due to additional cross-links. The highly homogeneous networks are transparent with average 90% transmittance of visible light, and of decent refractive indices around 1.55. Swelling-induced twist shape transformation and visible QR code under UV light is realized by pattern of the network.

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Section: Methodsmentioning

confidence: 72%

Synthesis and Properties of Networks Based on Thiol‐ene Chemistry Using a CO₂‐Based δ‐Lactone

Chen

Ling

et al. 2018

Macromol. Rapid Commun.

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“…For instance, the chorismate biosynthesis superpathway, from which p-AF is produced, is the origin of a vast array of medically- and industrially-relevant aromatic compounds ( Supplementary Fig. S1) 44,45 . Cognate RNA aptamers for a number of high value aromatics already exist and additional aptamers for intermediates within, or outside, this pathway can be evolved with in vitro selection 40,[46][47][48][49] .…”

Section: Discussionmentioning

confidence: 99%

Multi-state design of kinetically-controlled RNA aptamer ribosensors

Burke

Sparkman-Yager

Carothers

2017

Preprint

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Metabolite-responsive RNA regulators with kinetically-controlled responses are widespread in nature. By comparison, very limited success has been achieved creating kinetic control mechanisms for synthetic RNA aptamer devices. Here, we show that kinetically-controlled RNA aptamer ribosensors can be engineered using a novel approach for multi-state, cotranscriptional folding design. The design approach was developed through investigation of 29 candidate p-aminophenylalanine-responsive ribosensors. We show that ribosensors can be transcribed in situ and used to analyze metabolic production directly from engineered microbial cultures, establishing a new class of cell-free biosensors. We found that kinetically-controlled ribosensors exhibited 5-10 fold greater ligand sensitivity than a thermodynamically-controlled device. And, we further demonstrated that a second aptamer, promiscuous for aromatic amino acid binding, could be assembled into kinetic ribosensors with 45-fold improvements in ligand selectivity. These results have broad implications for engineering RNA aptamer devices and overcoming thermodynamic constraints on molecular recognition through the design of kinetically-controlled responses.

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“…Wet chemistry demands an appropriate chemical reactivity/functionalization of the polyimide substrate. We recently developed a polyimide with good mechanical properties, from a biologically derived exotic amino acid, 4‐aminocinnamic acid (4ACA) obtained from Arabidopsis thaliana from a fermenting system of biomass possess multiple reactive sites . The prepared biopolyimides showed a softening temperature high enough for hybridization with metal oxides (>240 °C) .…”

Section: Introductionmentioning

confidence: 99%

Robustification of ITO nanolayer by surface‐functionalization of transparent biopolyimide substrates

Dwivedi

Kaneko

2018

J of Applied Polymer Sci

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Robust and transparent electrodes with good flexibility and high mechanical strength are required for preparing next‐generation electronic devices. Indium tin oxide (ITO) nanolayers have been grown by radio‐frequency sputtering process on reactive surface of transparent and thermostable biopolyimide, derived from an exotic aromatic amino acid, 4‐aminocinnamic acid (4ACA). It is observed that greater surface hydrophilicity of the biopolyimide induces stronger interfacial interaction with ITO nanolayer resulting in smoother surface of the bionanohybrids. Spectroscopy, microscopy, and X‐ray diffraction reveal the successful deposition of the ultra‐thin ITO nanolayer onto the surface‐engineered biopolyimide. The process provides transparent bionanohybrid films with robustness against mechanical deformation. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46709.

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Ultrastrong, Transparent Polytruxillamides Derived from Microbial Photodimers

Abstract: Supporting information Table of contents Efficient bioproduction of 4ACA.

Cited by 50 publications

References 27 publications

Synthesis and Properties of Networks Based on Thiol‐ene Chemistry Using a CO₂‐Based δ‐Lactone

Synthesis and Properties of Networks Based on Thiol‐ene Chemistry Using a CO₂‐Based δ‐Lactone

Multi-state design of kinetically-controlled RNA aptamer ribosensors

Robustification of ITO nanolayer by surface‐functionalization of transparent biopolyimide substrates

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Ultrastrong, Transparent Polytruxillamides Derived from Microbial Photodimers

Abstract: Supporting information Table of contents Efficient bioproduction of 4ACA.

Cited by 50 publications

References 27 publications

Synthesis and Properties of Networks Based on Thiol‐ene Chemistry Using a CO2‐Based δ‐Lactone

Synthesis and Properties of Networks Based on Thiol‐ene Chemistry Using a CO2‐Based δ‐Lactone

Multi-state design of kinetically-controlled RNA aptamer ribosensors

Robustification of ITO nanolayer by surface‐functionalization of transparent biopolyimide substrates

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Synthesis and Properties of Networks Based on Thiol‐ene Chemistry Using a CO₂‐Based δ‐Lactone

Synthesis and Properties of Networks Based on Thiol‐ene Chemistry Using a CO₂‐Based δ‐Lactone