Institution
Hokkaido University
Education•Sapporo, Hokkaidô, Japan•
About: Hokkaido University is a education organization based out in Sapporo, Hokkaidô, Japan. It is known for research contribution in the topics: Catalysis & Population. The organization has 53925 authors who have published 115403 publications receiving 2651647 citations. The organization is also known as: Hokudai & Hokkaidō daigaku.
Topics: Catalysis, Population, Gene, Virus, Oxide
Papers published on a yearly basis
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TL;DR: Through a facile and effective strategy by employing lithium molten salts the controlled synthesis of 2H- and 1T-MoS2 monolayers with high-yield production is achieved, which deliver respective advantages in the field of electro- and photo-catalytic hydrogen evolution.
Abstract: Through a facile and effective strategy by employing lithium molten salts the controlled synthesis of 2H- and 1T-MoS2 monolayers with high-yield production is achieved. Both phases of MoS2 monolayers exhibit high stabilities. When used as a catalyst for hydrogen evolution, these phased MoS2 monolayers deliver respective advantages in the field of electro- and photo-catalytic hydrogen evolution.
510 citations
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TL;DR: A series of tough polyion complex hydrogels is synthesized by sequential homopolymerization of cationic and anionic monomers, which are self-healable under ambient conditions with the aid of saline solution and can be built from their microgels, which is promising for 3D/4D printing and the additive manufacturing of hydrogel.
Abstract: A series of tough polyion complex hydrogels is synthesized by sequential homopolymerization of cationic and anionic monomers. Owing to the reversible interpolymer ionic bonding, the materials are self-healable under ambient conditions with the aid of saline solution. Furthermore, self-glued bulk hydrogels can be built from their microgels, which is promising for 3D/4D printing and the additive manufacturing of hydrogels.
509 citations
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TL;DR: Large rutile particles loaded with gold particles of a wide range of sizes showed the highest level of photocatalytic activity, possibly due to greater light absorption ability in a wide wavelength range resulting from transverse and longitudinal LSPR of rod-like gold particles.
Abstract: Fifteen commercial titania (titanium(IV) oxide; TiO2) powders were modified with gold by photodeposition to prepare photocatalysts that work under irradiation with light in the visible range (vis). The gold-modified titania (Au/TiO2) powders were characterized by diffuse reflectance spectroscopy (DRS), field-emission scanning electron microscopy (FE-SEM), scanning transmission microscopy (STEM) and X-ray powder diffraction (XRD). It was shown that all tested powders could absorb visible light with an absorption maximum at localized surface plasmon resonance (LSPR) wavelengths (530–600 nm) and that the size and shape of gold nanoparticles determined the absorption ranges. The photocatalytic activity of Au/TiO2 powders was examined both under ultraviolet and vis irradiation (mainly >450 nm) for acetic acid and 2-propanol photooxidation. It was found that the activity depended strongly on gold and titania properties, such as particle size and shape, surface area and crystalline form. Under vis irradiation, large rutile particles loaded with gold particles of a wide range of sizes showed the highest level of photocatalytic activity, possibly due to greater light absorption ability in a wide wavelength range resulting from transverse and longitudinal LSPR of rod-like gold particles. Action spectrum analyses showed that visible-light-induced oxidation of organic compounds by aerated gold–titania suspensions was initiated by excitation of LSPR absorption of gold. Although photocatalytic activity of nanosized gold particles under vis irradiation with a wavelength of ca. 430 nm and catalytic activity of gold-modified titania during dark reactions were also found, it was shown that the activities of Au/TiO2 particles originated from activation of LSPR of gold by light of wavelength of 530–650 nm. Participation of molecular oxygen as an electron acceptor and titania as a conductor of electrons is suggested by comparing with results obtained under deaerated conditions and results obtained using a system containing gold-deposited silica instead of gold–titania, respectively. On the basis of these results, the mechanism of visible-light-induced oxidation of organic compounds on gold–titania is proposed.
508 citations
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TL;DR: The arthroscopically assisted anatomic reconstruction procedure of the posterolateral and anteromedial bundles using hamstring tendon autografts is clinically practical in the treatment for the ACL-deficient knee.
Abstract: Purpose: To develop and evaluate an anatomic reconstruction procedure of the posterolateral and anteromedial bundles of the anterior cruciate ligament (ACL). Type of study: Anatomic study and case series. Methods: The femoral attachment of the anteromedial and posterolateral bundles of the ACL was anatomically analyzed with 5 cadaveric knees. Using another 3 cadaveric knees, anatomic reconstruction of the posterolateral and anteromedial bundles was performed with the transtibial technique, and tunnel positioning and graft function in a range of knee motion was observed. Based on this anatomic study, an anatomic reconstruction procedure of the anteromedial and posterolateral bundles was developed using hamstring tendon autografts. This procedure was carried out in 57 consecutive patients with an ACL-deficient knee. The patients were followed-up for a minimum of 24 months. Results: We developed the arthroscopically assisted anatomic reconstruction procedure of the posterolateral and anteromedial bundles, involving a new method of creating the tibial and femoral tunnels for the posterolateral bundle. To visualize the femoral attachment of the posterolateral bundle, the medial infrapatellar portal was more useful than the lateral portal. In clinical results, the side-to-side difference of anterior laxity averaged 1.0 mm with a standard deviation of 0.9. Conclusions: The anatomic reconstruction of the anteromedial and posterolateral bundles using hamstring tendon autografts is clinically practical in the treatment for the ACL-deficient knee. Level of evidence: Level IV.
507 citations
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506 citations
Authors
Showing all 54156 results
Name | H-index | Papers | Citations |
---|---|---|---|
Shizuo Akira | 261 | 1308 | 320561 |
Yi Cui | 220 | 1015 | 199725 |
John F. Hartwig | 145 | 714 | 66472 |
Yoshihiro Kawaoka | 139 | 883 | 75087 |
David Y. Graham | 138 | 1047 | 80886 |
Takashi Kadowaki | 137 | 873 | 89729 |
Kazunari Domen | 130 | 908 | 77964 |
Susumu Kitagawa | 125 | 809 | 69594 |
Toshikazu Nakamura | 121 | 732 | 51374 |
Toshio Hirano | 120 | 401 | 55721 |
Li-Jun Wan | 113 | 639 | 52128 |
Wenbin Lin | 113 | 474 | 56786 |
Xiaoming Li | 113 | 1932 | 72445 |
Jinhua Ye | 112 | 658 | 49496 |
Terence Tao | 111 | 606 | 94316 |