Study of the Interaction between a Water-Soluble Cationic Poly(heteroarylene methine) and DNA

Kato, Akinori; Fukushima, Yasumasa

doi:10.2494/photopolymer.26.171

Cited by 2 publications

(3 citation statements)

References 23 publications

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“…Their peculiar low band-gap [11] makes them highly interesting as materials for organic photovoltaics (OPV) [3] and non-linear applications in photonics [12,13] because they absorb light in the visible range of the spectral light. Their applications in ordered ultrathin films with well-defined architecture using the Langmuir–Blodgett (LB) technique [14] or as sensing material for DNA [15] were also reported. Since PHAMs are known to show tuneable optoelectronic properties, so far most research activities have focused on the substitution effects on pendant heteroaryl units, the aromatic backbone [16,17], and the methylene bridges [18] where immediate influences on the band-gap positions and the band-gap sizes are achieved.…”

Section: Introductionmentioning

confidence: 99%

Copper Metallopolymer Catalyst for the Electrocatalytic Hydrogen Evolution Reaction (HER)

et al. 2019

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Conjugated polymers with stabilizing coordination units for single-site catalytic centers are excellent candidates to minimize the use of expensive noble metal electrode materials. In this study, conjugated metallopolymer, POS[Cu], was synthesized and fully characterized by means of spectroscopical, electrochemical, and photophysical methods. The copper metallopolymer was found to be highly active for the electrocatalytic hydrogen generation (HER) in an aqueous solution at pH 7.4 and overpotentials at 300 mV vs. reversible hydrogen electrode (RHE). Compared to the platinum electrode, the obtained overpotential is only 100 mV higher. The photoelectrochemical tests revealed that the complexation of the conjugated polymer POS turned its intrinsically electron-accepting (p-type) properties into an electron-donor (n-type) with photocurrent responses ten times higher than the organic photoelectrode.

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Section: Introductionmentioning

confidence: 99%

Copper Metallopolymer Catalyst for the Electrocatalytic Hydrogen Evolution Reaction (HER)

et al. 2019

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“…Water-soluble cationic poly(heteroarylene methine) (WSCP) was synthesized as previously reported [16]. All other reagents were of analytical grade unless specified otherwise.…”

Section: Methodsmentioning

confidence: 99%

“…In addition, the interaction of a protein with a water-soluble polymer has also attracted considerable attention in the binding mode and mechanism between a protein and a biomacromolecule in vivo. We demonstrated to interact the cationic water-soluble poly(heteroarylene methine) bearing a quaternary pyridinium group (WSCP) illustrated in Scheme 1 with DNA [16]. However, as far as we are aware, there has been no study on the interaction of poly(heteroarylene methine) with a protein.…”

Section: Introductionmentioning

confidence: 99%

Study on the Interaction between BSA and a Water-Soluble Cationic Poly(heteroarylene methine) Bearing Pyridinium Salts

Sakamaki

Kato

Fukushima

2013

J. Photopol. Sci. Technol.

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The interaction of BSA and a water-soluble cationic poly(heteroarylene methine) bearing pyridinium salts (WSCP) has been investigated by spectrophotometric and spectrofluorometric methods. The absorption and fluorescence spectra of BSA suggest that BSA and WSCP form a protein-polymer ground state complex due to electrostatic interaction between the negatively charged surface of BSA and the cationic side chains of WSCP. The interaction causes a decrease in fluorescence intensity of BSA due to static quenching. In addition, an enhancement in fluorescence signal of WSCP with BSA can be attributed to the surfactant property of BSA. The complex formation between BSA and WSCP results from not only electrostatic attractive force but also hydrophobic interaction, and WSCP can become a fluorescence probe for homogeneous BSA detection.

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Study of the Interaction between a Water-Soluble Cationic Poly(heteroarylene methine) and DNA

Cited by 2 publications

References 23 publications

Copper Metallopolymer Catalyst for the Electrocatalytic Hydrogen Evolution Reaction (HER)

Copper Metallopolymer Catalyst for the Electrocatalytic Hydrogen Evolution Reaction (HER)

Study on the Interaction between BSA and a Water-Soluble Cationic Poly(heteroarylene methine) Bearing Pyridinium Salts

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