Covalent immobilization of glucose oxidase on the film prepared by electrochemical polymerization of N-phenylglycine for amperometric glucose sensing

Homma, Toshimasa; Ichimura, Toshifumi; Kondo, Mizuki; Kubo, Takashi; Shimomura, Masato

doi:10.1016/j.eurpolymj.2013.12.005

Cited by 21 publications

(8 citation statements)

References 27 publications

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“…Compared with PNPG‐PEG‐NH 2 alone, the band at 1657 cm −1 assigned to the carbonyl–amide vibration was shifted to 1732 cm −1 in PNPG‐PEG‐HA, which was assigned to the H‐bond interaction between the carbonyl group of PNPG‐PEG unit and the hydroxyl group of HA. These observations are in agreement with previously reported results, and further confirm the successful conjugation of PNPG‐PEG‐NH 2 with HA in PNPG‐PEG‐HA.…”

Section: Resultssupporting

confidence: 93%

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Poly(N‐phenylglycine)‐Based Nanoparticles as Highly Effective and Targeted Near‐Infrared Photothermal Therapy/Photodynamic Therapeutic Agents for Malignant Melanoma

Jiang

Zhang

Guo

et al. 2016

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A novel plasmonic gold nanocarrier using a modular RNA scaffold significantly improves delivery efficiency into diverse human cells, as presented by Norbert O. Reich and co-workers in article number 1602473. The orthogonal positioning of cell targeting peptides and functional RNA provides unprecedented control in the delivery of biologically active RNA. NIR light-triggered RNA release with spatio-temporal control further enhances the RNA delivery efficiency. Plasmon-Enhanced Spectroscopy Shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) is invented to break the long-standing material-and substrate-specific limitations in SERS (surface-enhanced Raman scattering), as presented by Jian-Feng Li and co-workers in article number 1601598. The metal nanoparticle acts as a plasmonic nanoantenna for near field amplification, and the ultra-thin dielectric shell prevents the interference of environmental species. Single Crystals Perovskite single-crystalline microplate arrays are fabricated on a large scale via inkjet printing technology by Mingzhu Li, Yanlin Song, and co-workers in article number 1603217. By modulating the inkjet droplet volume and the ink composition, a tunable single/multiple mode laser with high quality factors up to 863 and three primary-color microplates are achieved. This work makes a great step toward the multifunction of on-chip perovskite crystals, which can boost its promising applications on integrated coherent light sources and other optoelectronic applications. Recent progress in the development of metallofullerene nanomaterials for next-generation biomedical applications is reviewed. For example, the metallo-fullerenes are promising magnetic resonance imaging contrast agents, which are attractive by shielding toxic metals from the bioenviroment. This nanoplatform readily allows specific targeting and multi-modality capability for both diagnostic and therapeutic applications. reviews Shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) has been invented to break the long-standing material-and substrate-specific limitations in conventional SERS. The noble metal nanoparticle acts as plasmonic nanoantenna for the near field amplification , and the ultra-thin and inert dielectric shell prevents the interference of environmental species. This SHINERS concept could be applied to a lager family of surface-enhanced spectroscopies. Catalysts Hydrogen is considered as sustainable and environmentally friendly energy for global energy demands in the future. Here a Co-FeS 2 catalyst with surface phosphide doping (P/Co-FeS 2) for hydrogen evolution reaction (HER) in acidic solutions is developed. The P/Co-FeS 2 exhibits superior HER electrochemical performance with overpotential of-90 mV at 100 mA cm-2 and Tafel slope of 41 mV/decade and excellent durability. communications MWCNTs self-assemble into various homocentric rings in a thermo-driven self-assembly system. Closely packed and scatteredly packed MWCNT rings self-assemble on a Si-SiO 2 substrate, whereas on a Au substrate ...

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Section: Resultssupporting

confidence: 93%

“…In the present study, we attempted to develop a new class of organic polymeric PTT agents for melanoma treatment based on poly( N ‐phenylglycine) (PNPG), which was obtained via N ‐phenylglycine (NPG) polymerization . PNPG is an analogue of PANI, and similar to PANI, it exhibits pH‐responsive NIR absorption .…”

Section: Introductionmentioning

confidence: 99%

Poly(N‐phenylglycine)‐Based Nanoparticles as Highly Effective and Targeted Near‐Infrared Photothermal Therapy/Photodynamic Therapeutic Agents for Malignant Melanoma

Jiang

Zhang

Guo

et al. 2016

Small

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“…Glucose oxidase is a glycoside of mannose carbohydrate (around 16%) or can be freely isolated, as a non-glycosylated enzyme, from the fungus Phanerochaete chrysosporium . The synthesis of GOx in fungi is promoted by O 2 , which induces the transcription of the enzyme [1,2,3]. GOx has become commercially important in the last few years, gaining important use in chemical, pharmaceutical, food, beverage, and other industries.…”

Section: Introductionmentioning

confidence: 99%

Molecular Dynamic Studies of the Complex Polyethylenimine and Glucose Oxidase

Szefler

Diudea

Putz

et al. 2016

IJMS

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Glucose oxidase (GOx) is an enzyme produced by Aspergillus, Penicillium and other fungi species. It catalyzes the oxidation of β-d-glucose (by the molecular oxygen or other molecules, like quinones, in a higher oxidation state) to form d-glucono-1,5-lactone, which hydrolyses spontaneously to produce gluconic acid. A coproduct of this enzymatic reaction is hydrogen peroxide (H2O2). GOx has found several commercial applications in chemical and pharmaceutical industries including novel biosensors that use the immobilized enzyme on different nanomaterials and/or polymers such as polyethylenimine (PEI). The problem of GOx immobilization on PEI is retaining the enzyme native activity despite its immobilization onto the polymer surface. Therefore, the molecular dynamic (MD) study of the PEI ligand (C14N8_07_B22) and the GOx enzyme (3QVR) was performed to examine the final complex PEI-GOx stabilization and the affinity of the PEI ligand to the docking sites of the GOx enzyme. The docking procedure showed two places/regions of major interaction of the protein with the polymer PEI: (LIG1) of −5.8 kcal/mol and (LIG2) of −4.5 kcal/mol located inside the enzyme and on its surface, respectively. The values of enthalpy for the PEI-enzyme complex, located inside of the protein (LIG1) and on its surface (LIG2) were computed. Docking also discovered domains of the GOx protein that exhibit no interactions with the ligand or have even repulsive characteristics. The structural data clearly indicate some differences in the ligand PEI behavior bound at the two places/regions of glucose oxidase.

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“…Due to the existence of competent technological applications such as sensors, light emitting diodes, photovoltaic cells, transistors, electrochromic devices and optical displays conducting polymers have become the center of attention within the last two decades. Among many polymers, poly(2,5‐dithienylpyrrole) (PSNS) derivatives have been shown to be one of the most useful and are readily synthesized through both chemical and electrochemical paths, having low oxidation potential and satisfactory electrochromic properties .…”

Section: Introductionmentioning

confidence: 99%