Search Results - "Kazuo Umemura"

Hybrids of Nucleic Acids and Carbon Nanotubes for Nanobiotechnology by Umemura, Kazuo

“…Recent progress in the combination of nucleic acids and carbon nanotubes (CNTs) has been briefly reviewed here. Since discovering the hybridization phenomenon…”
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Hybridization of papain molecules and DNA-wrapped single-walled carbon nanotubes evaluated by atomic force microscopy in fluids by Kitamura, Masaki, Umemura, Kazuo

“…Although various conjugates of single-walled carbon nanotubes (SWNTs) and biomolecules, such as nanobiosensors and nanobiodevices, have been reported, the…”
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A Review of Applications Using Mixed Materials of Cellulose, Nanocellulose and Carbon Nanotubes by Miyashiro, Daisuke, Hamano, Ryo, Umemura, Kazuo

“…Carbon nanotubes (CNTs) have been extensively studied as one of the most interesting nanomaterials for over 25 years because they exhibit excellent mechanical,…”
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Optical Response Characteristics of Single-Walled Carbon Nanotube Chirality Exposed to Oxidants with Different Oxidizing Power by Matsukawa, Yuji, Umemura, Kazuo

“…Semiconductor single-walled carbon nanotubes (SWNTs) have unique characteristics owing to differences in the three-dimensional structure (chirality) expressed…”
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Localization analysis of intercellular materials of living diatom cells studied by tomographic phase microscopy by Hamano, Ryo, Mayama, Shigeki, Umemura, Kazuo

“…We demonstrated tomographic phase microscopy (TPM) of living diatoms in liquid in order to quantitatively analyze localization of cell components of symmetric…”
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Chirality-specific Near-infrared Photoluminescent Responses of Single-walled Carbon Nanotubes to Detect Papain Adsorption Assisted by the Use of DNA and Frustules by Hirayama, Kota, Kitamura, Masaki, Mayama, Shigeki, Umemura, Kazuo

“…We demonstrate detection of near-infrared photoluminescence (PL) responses of single-walled carbon nanotubes (SWNTs) caused by the injection of papain…”
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Numerical Analysis for Light Absorption Spectra of the Base of DNA-Wrapped Single-Walled Carbon Nanotubes by Taira, Hisao, Miyashiro, Daisuke, Umemura, Kazuo

“…This study numerically demonstrates the light absorption spectra of each base of DNA-wrapped single-walled carbon nanotubes (SWCNTs). Previous experimental and…”
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A Review of the Mechanisms of Blood-Brain Barrier Permeability by Tissue-Type Plasminogen Activator Treatment for Cerebral Ischemia by Suzuki, Yasuhiro, Nagai, Nobuo, Umemura, Kazuo

“…Cerebrovascular homeostasis is maintained by the blood-brain barrier (BBB), which forms a mechanical and functional barrier between systemic circulation and…”
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Monitoring the antioxidant effects of catechin using single-walled carbon nanotubes: Comparative analysis by near-infrared absorption and near-infrared photoluminescence by Ishibashi, Yu, Ito, Masahiro, Homma, Yoshikazu, Umemura, Kazuo

“…[Display omitted] •Antioxidant ability of Japanese tea and catechin was evaluated.•Hybrids of DNA and carbon nanotubes were employed as a sensor.•Near-infrared…”
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Atomic Force Microscopy of DNA-wrapped Single-walled Carbon Nanotubes in Aqueous Solution by Hayashida, Takuya, Umemura, Kazuo

“…[Display omitted] •DNA-SWNT hybrids were observed in a solution.•The same hybrid was simultaneously observed with three AFM modes.•DNA molecules were flexible…”
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Inhibition of plasminogen suppresses fibrosis and macrophage foaming in a nonalcoholic steatohepatitis mouse model by Tomonari, Yuki, Iwaki, Takayuki, Arakawa, Tomohiro, Umemura, Kazuo

“…Nonalcoholic steatohepatitis is a clinically important liver disease. Its symptoms are exacerbated by macrophage foaming, which is promoted by plasminogen in…”
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Effect on near-infrared absorption spectra of DNA/single-walled carbon nanotube (SWNT) complexes by adsorption of a blocking reagent by Matsukawa, Yuji, Ohura, Shusuke, Umemura, Kazuo

“…[Display omitted] •Blocking reagent (DB1130) blocks the redox action of SWNTs.•Although the absorption amount of DB1130 does not give a large change to the…”
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Efficacy and Safety of Prasugrel vs Clopidogrel in Thrombotic Stroke Patients With Risk Factors for Ischemic Stroke Recurrence: A Double-blind, Phase III Study (PRASTRO-III) by Kitazono, Takanari, Kamouchi, Masahiro, Matsumaru, Yuji, Nakamura, Masato, Umemura, Kazuo, Matsuo, Hajime, Koyama, Nobuyuki, Tsutsumi, Junko, Kimura, Kazumi

“…Aim: To examine the efficacy and safety of prasugrel vs clopidogrel in thrombotic stroke patients at risk of ischemic stroke.Methods: This multicenter,…”
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Desflurane anesthesia shifts the circadian rhythm phase depending on the time of day of anesthesia by Imai, Ryo, Makino, Hiroshi, Katoh, Takasumi, Kimura, Tetsuro, Kurita, Tadayoshi, Hokamura, Kazuya, Umemura, Kazuo, Nakajima, Yoshiki

“…Desflurane is one of the most frequently used inhalational anesthetics in clinical practice. A circadian rhythm phase-shift after general anesthesia with…”
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Dispersion of Carbon Nanotubes with “Green” Detergents by Umemura, Kazuo, Hamano, Ryo, Komatsu, Hiroaki, Ikuno, Takashi, Siswoyo, Eko

“…Solubilization of carbon nanotubes (CNTs) is a fundamental technique for the use of CNTs and their conjugates as nanodevices and nanobiodevices. In this work,…”
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Differences in the response of the near-infrared absorbance spectra of single-walled carbon nanotubes; Effects of chirality and wrapping polymers by Matsukawa, Yuji, Ohura, Shusuke, Umemura, Kazuo

“…[Display omitted] •Redox properties depend on the type of polymer coating for SWNTs.•Change in absorbance of ds-DNA complexes are greater than CMC-SWNT…”
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Single cell analysis of sinking diatoms studied using a homemade ‘tumbled’ optical microscope system by Shoumura, Shingo, Hamano, Ryo, Hanada, Yasutaka, Mayama, Shigeki, Umemura, Kazuo

“…Diatoms are one of the major photosynthetic planktons. Here, we studied movements of aqueous suspensions of diatoms using a home-made ‘tumbled’ optical…”
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Fibrin-mediated growth restriction of early-stage human trophoblasts is switched to growth promotion through fibrinolysis by Asano, Yukiko, Iwaki, Takayuki, Umemura, Kazuo, Kanayama, Naohiro, Itoh, Hiroaki

“…Abstract STUDY QUESTION Does fibrin promote trophoblast growth in human and mouse blastocysts during early embryo implantation? SUMMARY ANSWER Mouse…”
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Surface morphology of hybrids of double-stranded DNA and single-walled carbon nanotubes studied by atomic force microscopy by Hayashida, Takuya, Umemura, Kazuo

“…[Display omitted] ► Hybridization of CVD-SWNT with dsDNA was demonstrated. ► Smooth surfaces of hybrids were obtained even with small amount of dsDNA. ►…”
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Influences of different proton pump inhibitors on the anti‐platelet function of clopidogrel in relation to CYP2C19 genotypes by Furuta, Takahisa, Iwaki, Takayuki, Umemura, Kazuo

“…WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT • Active metabolism of clopidogrel is mainly mediated by CYP2C19. There are genetic differences in the activity of…”
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