Structure and properties of the mesophase of syndiotactic polystyrene V: preferential sorption performance of the mesophase for aromatic hydrocarbons

Yamämoto, Yasushi; Nakai, Yoshikazu; Katsumata, T.; Tsutsui, Kenji; Tsujita, Yoshiharu; Yoshimizu, Hiroaki; Okamoto, S.

doi:10.1016/j.molstruc.2004.08.026

Cited by 10 publications

(6 citation statements)

References 22 publications

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“…We focused on specific nanostructures that were formed by syndiotactic PS (sPS) and applied the screening method by using a 7‐mer peptide library to the sPS films . SPS formed TTGG helical conformations (where T and G represent trans and gauche conformations, respectively) when the films were prepared from solutions of sPS in a suitable solvent . Evaporation of the free solvent resulted in δ‐form films that were complexed with solvent molecules.…”

Section: Polymer‐binding Peptidesmentioning

confidence: 99%

Peptides as New Smart Bionanomaterials: Molecular‐Recognition and Self‐Assembly Capabilities

Sawada

Mihara

Serizawa

2013

The Chemical Record

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Biomolecules express exquisite properties that are required for molecular recognition and self-assembly on the nanoscale. These smart capabilities have developed through evolution and such biomolecules operate based on smart functions in natural systems. Recently, these remarkable smart capabilities have been utilized in not only biologically related fields, but also in materials science and engineering. A peptide-screening technology that uses phage-display systems has been developed based on this natural smart evolution for the generation of new functional peptide bionanomaterials. We focused on peptides that specifically bound to synthetic polymers. These polymer-binding peptides were screened by using a phage-display peptide library to recognize nanostructures that were derived from polymeric structural features and were utilized for possible applications as new bionanomaterials. We also focused on self-assembling peptides with β-sheet structures that formed nanoscale, fibrous structures for applications in new bottom-up nanomaterials. Moreover, nanofiber-binding peptides were also screened to introduce the desired functionalities into nanofibers without the need for additional molecular design. Our approach to construct new bionanomaterials that employ peptides will open up excellent opportunities for the next generation of materials science and technology.

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Section: Polymer‐binding Peptidesmentioning

confidence: 99%

Peptides as New Smart Bionanomaterials: Molecular‐Recognition and Self‐Assembly Capabilities

Sawada

Mihara

Serizawa

2013

The Chemical Record

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“…75 sPS forms TTGG helical conformations (T and G indicate trans and gauche conformations, respectively), when the films were adequately prepared by suitable solvents. [76][77][78] The evaporation of free solvents fabricates d-form films complexed with solvent molecules. Further evaporation of the solvents fabricates empty d-form (d e ) porous films.…”

Section: Porous Nanostructurementioning

confidence: 99%

Specific interfaces between synthetic polymers and biologically identified peptides

2011

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“…Kumar et al discussed the similar item in conjunction with the morphology of the emerging crystallites and referred to the relevance to the behavior of clathrates [17]. Indeed, the mechanisms of apparent stabilization of non-crystallization state in IB-HPMC-alcohol ternary complex could be similar to those of clathrates or clathrate hydrates, where water and alcohol molecules play important role on their crystallization and morphology [19][20][21]. It is obvious that we have yet much to do to give concrete evidences of this and related speculations made above.…”

Section: Thermal Analysismentioning

confidence: 99%

Highly efficient amorphization of drugs by the participation of molecular complex

Abe

Ogawa

Uchino

et al. 2010

Trans. Mat. Res. Soc. Japan

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Spontaneous amorphization of ibuprofen (IB) by the coexistence of its solvent vapor and polymeric matrix, hydroxypropyl methylcellulose (HPMC), were elucidated by combining X-ray diffractometry, mid-and near-IR spectroscopy, and thermal analyses, together with the stability test of the non-crystalline IB by prolonged exposure to water vapor. The non-crystalline state of IB was achieved by the recombination of hydrogen bonds from intracrystalline ones to intermolecular ones between IB and HPMC. Coexistence of the solvent molecular species, either methanol or ethanol, significantly increased the stability of the non-crystalline states of IB. Since IB globules of 20 -50 nm were observed by TEM, IB in a non-crystalline state cannot be regarded as a perfect molecular dispersion. We therefore attributed the apparent stability increase to two aspects, i.e., (1) molecular interaction between IB and HPMC by abridging ethanol or methanol molecules via both hydrogen bonds and hydrophobic effects, and (2) retardation of nucleation and growth by suppression of IB molecular mobility by IB-HPMC network structure.

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Structure and properties of the mesophase of syndiotactic polystyrene V: preferential sorption performance of the mesophase for aromatic hydrocarbons

Cited by 10 publications

References 22 publications

Peptides as New Smart Bionanomaterials: Molecular‐Recognition and Self‐Assembly Capabilities

Peptides as New Smart Bionanomaterials: Molecular‐Recognition and Self‐Assembly Capabilities

Specific interfaces between synthetic polymers and biologically identified peptides

Highly efficient amorphization of drugs by the participation of molecular complex

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