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Linking of Chemical Reactions and Silica Nanoparticle Contact Using Synthetic Helical Molecules

Chinese Journal of Chemistry 2024年第15期42卷 1781-1796页

作者： Sheng Zhang Ming Bao Mieko Arisawa masahiko Yamaguchi state Key Laboratory of Fine Chemicals Dalian University of TechnologyDalianLiaoning 116024China Department of Bioscience and Biotechnology Graduate Schoolof Bioresource and Bioenvironmental SciencesKyushu UniversityFukuoka 819-0395Japan

Biological cells exhibit diverse phenomena induced through linking of chemical reactions of molecules and solid surface *** is then a significant topic in the field of chemistry to study phenomena induced through this linking using synthetic systems,which can promote our understanding of biological phenomena and can be applied to the development of novel *** nanoparticles(sNPs),which are synthetic inorganic materials,are attractive for such purposes,because of their following characteristics:they can adsorb large amounts of molecules on their surfaces,they can aggregate through contact between SNPs as well as contact between molecules and SNPs,and the molecules can be easily removed from solutions by *** contact of sNP surfaces with molecules then affects chemical reactions of molecules and also behaviors of *** article describes systems derived from synthetic helical molecules and sNPs,which exhibit notable phenomena including selective adsorption and molecular recognition,equilibrium shift,step kinetics with induction period,precipitation with flow and sweeping,and disaggregation and desorption by sonication,in which the high affinity of helical molecules with sNP surfaces plays important *** models that explain the phenomena are *** applications are also discussed,including the separation of molecules,capture of intermediates,the storage and release of molecules,equilibrium shift,clocking,and the translation of mechanical stimulations into chemical reactions.

关键词： Silica nanoparticles Chemical reactions Molecular recognition Linking Nanoparticles Adsorption Chirality Precipitation

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柴油机燃用乙醇的燃烧技术——混合燃料、双燃料喷射和电火花点火

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内燃机学报 1986年第3期4卷 211-228页

作者：小林伸治日本汽车研究所

本文就高速纹影摄影和气缸压力的热力分析法,对使用乙醇作燃料的柴油机的三种燃烧技术的燃烧过程,进行了基本研究。这三种燃烧技术包括:混合燃料、双燃料喷射和电火花辅助点火。在柴油中掺醇由于降低了十六烷值造成着火延迟期变长,但与... 详细信息

本文就高速纹影摄影和气缸压力的热力分析法,对使用乙醇作燃料的柴油机的三种燃烧技术的燃烧过程,进行了基本研究。这三种燃烧技术包括:混合燃料、双燃料喷射和电火花辅助点火。在柴油中掺醇由于降低了十六烷值造成着火延迟期变长,但与柴油相比,其碳烟的生成却减少了。在双燃料喷射发动机中,两种燃料的混合方式对燃烧过程影响很大。在电火花辅助点火发动机中,燃烧过程主要受点火时间影响。该发动机的燃烧过程与普通柴油机或汽油机类似,取决于发火时间。依据这些基本研究的结果制成了几台样机。实验表明,该发动机的性能前景良好。

关键词：燃料喷射电火花点火燃烧技术燃烧过程柴油机压燃发动机混合燃料一弓乙醇酒醇一元醇林伸内燃机学报

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CONCEPTUAL DESIGN STUDY ON SULFURIC-ACID DECOMPOSER FOR THERMO-CHEMICAL IODINE-SULFUR PROCESS

CONCEPTUAL DESIGN STUDY ON SULFURIC-ACID DECOMPOSER FOR THER...

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第十三届国际核工程大会

作者： Hiroyuki Ota Seiji Kasahara Atsuhiko Terada Masatoshi Hodotsuka Shinji Kubo Ryutaro Hino Takanari Inatomi Kenji Ogura masahiko kobayashi Shigeki Maruyama Department of Advanced Nuclear Heat Technology Japan Atomic Energy Research Institute Japan Atomic Energy Research Institute Toshiba Corporation Toshiba Corporation IPS CompanyAdvanced Systems Design & Engineering Dept

The Japan Atomic Energy Research Institute(JAERI) has been conducting R&D on HTGR and also on thermo-chemical hydrogen production by using a thermo-chemical iodine-sulfur cycle(IS process).In the I

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Study on Distribution of Four Pseudomonas Species in Living Environment Using Multiplex PCR

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Open Journal of Stomatology 2024年第2期14卷 77-86页

作者： Sachiyo Hayashi Koji Umezawa Osamu Tsuzukibashi Akira Fukatsu Mana Fuchigami Chiaki Komine Hiroshi Yamamoto Mio Hagiwara-Hamano Yukiko Iizuka Satoshi Uchibori Masanobu Wakami Hiroshi Murakami Taira kobayashi masahiko Fukumoto Takato Nomoto Department of Special Needs Dentistry Nihon University School of Dentistry at Matsudo Chiba Japan Department of Laboratory Medicine for Dentistry for the Compromised Patient Nihon University School of Dentistry at Matsudo Chiba Japan Department of Oral Surgery Nihon University School of Dentistry at Matsudo Chiba Japan Department of Fixed Prosthodontics Nihon University School of Dentistry at Matsudo Chiba Japan Department of Oral Implantology Nihon University School of Dentistry at Matsudo Chiba Japan

Purpose: The genus Pseudomonas is a ubiquitous microorganism frequently detected from immunocompromised patients. The inherent resistance to numerous antimicrobial agents contributes to the opportunistic character of this pathogen exhaustive monitoring of this pathogen is considered of critical importance to public health organizations. The reliable identification method able to distinguish genetic close Pseudomonas species is needed, because these organisms are difficult to differentiate by phenotypic or biochemical methods. The purpose of the present study was to design species-specific primers in order to identify and detect four Pseudomonas species which are frequently detected from the human oral cavities, and to investigate the distribution of these organisms in the living environment using a multiplex PCR. Methods: Polymerase chain reaction (PCR) primers were designed based on partial sequences of the rpoD gene of four Pseudomonas species. Swab samples were collected from fifty washstands, and the distribution of Pseudomonas species was investigated using a conventional PCR at genus level and a multiplex PCR at species level. Results: Multiplex PCR method developed in this study was able to distinguish four Pseudomonas species clearly. The genus Pseudomonas was detected from all samples (100%), whereas P. putida, P, aeruginosa, P. stutzeri and P. fluorescens were detected at 44%, 8%, 4% and 2% in fifty swab samples, respectively. Conclusion: Our developed one-step multiplex PCR method is accurate, specific, cost-effective, time-saving, and works without requiring DNA extraction. It was indicated that washstands were the uninhabitable environment for P. putida, P, aeruginosa, P. stutzeri and P. fluorescens.

关键词： Genus Pseudomonas Multiplex PCR Living Environment

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Comparison of incidence of acute kidney injury after robot-assisted radical prostatectomy with that after open retropubic and extraperitoneal laparoscopic radical prostatectomies in patients with prostate cancer

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Current Urology 2024年第2期18卷 139-143页

作者： Shunsuke Sato Toshiaki Tanaka Takeshi Maehana Kohei Hashimoto Ko kobayashi Naoya Masumori Department of Urology Sapporo Medical UniversitySapporoJapan

Background:We retrospectively evaluated the postoperative renal function in patients who had undergone radical prostatectomy to compare the incidences of postoperative acute kidney injury(AKI)among the patients who had undergone robot-assisted radical prostatectomy(RARP),retropubic radical prostatectomy(RRP),and extraperitoneal laparoscopic radical prostatectomy(exLRP).Materials and methods:Patients with prostate cancer who had undergone radical prostatectomy at our institution between 2008 and 2014 were ***-assisted radical prostatectomy was performed using an intraperitoneal approach in a 25-degree Trendelenburg position,whereas other procedures were performed with the patient in the supine *** evaluated the serum creatinine levels and estimated glomerular filtration rates immediately after surgery and on postoperative day *** evaluated the incidence of AKI after prostatectomy using the Acute Kidney Injury Network criteria of the Kidney Disease:Improving Global Outcomes ***:A total of 150 consecutive patients were included,with each of the 3 groups(RARP,RRP,and exLRP)comprising 50 *** AKI was observed in 15(30.0%),1(2.0%),and 3(6.0%)patients in the RARP,RRP,and exLRP groups,*** 1 AKI was observed in all the patients except *** incidence of AKI in RARP group was significantly higher than that in the other groups(p<0.001).In the RARP group,the serum creatinine level was significantly elevated immediately after the surgery;however,it returned to baseline on postoperative day *** procedures were the only independent factor associated with AKI ***:This study suggest that compared with RRP and exLRP,RARP is associated with a higher incidence of postoperative AKI,although most patients recover ***-abdominal pneumoperitoneum may contribute to AKI onset.

关键词： Acute kidney injury Renal function Prostatectomy

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Fundamental Study on Response Properties of Structures Constructed on Lunar Regolith

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Open Journal of Earthquake Research 2024年第1期13卷 27-40页

作者： Yuji Miyamoto Takaharu Nakano Toshio kobayashi Department of Architecture and Civil Engineering Fukui University of Technology Fukui Japan Graduate School of Engineering Osaka University Osaka Japan SANSEI Inc. Tokyo Japan

The Artemis Program, for constructing the lunar base, is in progress. How to design and construct architectural and civil engineering structures in the lunar environment has become an important issue. The lunar surface is covered with soft sand, called regolith, and it is required to protect lunar bases and structures, as well as internal precision equipment, against vibrational disturbances such as moonquakes and meteorite collisions. Therefore, in this study, the static and cyclic triaxial compression tests of the regolith simulant were conducted. The reference strain and equivalent damping factor of the regolith simulant were smaller compared to sandy soil on Earth. In addition, a shaking table test using model specimens was conducted on the response properties of regolith ground alone and structures set on regolith ground. The buried foundation and pile foundation notably suppressed the horizontal response attributed to the rocking component compared to a direct foundation.

关键词： Lunar Development Regolith Soil-Structure Interaction Triaxial Compression Test Shaking Table Test

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TiO₂-PES Fibrous Composite Material for Ammonia Removal Using UV-A Photocatalyst

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Journal of Materials Science and Chemical Engineering 2024年第1期12卷 1-19页

作者： Anh Phuong Le Thi Masaru Ohshiro Takaomi kobayashi Department of Science and Technology Innovation Nagaoka University of Technology Nagaoka Japan Kasai Corporation Niigata Japan

This study focused on the development and characterization of TiO2-PES composite fibers with varying TiO2 loading amounts using a phase inversion process. The resulting composite fibers exhibited a sponge-like structure with embedded TiO2 nanoparticles within a polymer matrix. Their photocatalytic performance for ammonia removal from aqueous solutions under UV-A light exposure was thoroughly investigated. The findings revealed that PeTi8 composite fibers displayed superior adsorption capacity compared to other samples. Moreover, the study explored the impact of pH, light intensity, and catalyst dosage on the photocatalytic degradation of ammonia. Adsorption equilibrium isotherms closely followed the Langmuir model, with the results indicating a correlation between qm values of 2.49 mg/g and the porous structure of the adsorbents. The research underscored the efficacy of TiO2 composite fibers in the photocatalytic removal of aqueous under UV-A light. Notably, increasing the distance between the photocatalyst and the light source resulted in de-creased hydroxyl radical concentration, influencing photocatalytic efficiency. These findings contribute to our understanding of TiO2 composite fibers as promising photocatalysts for ammonia removal in water treatment applications.

关键词： Ammonia Removal Photocatalyst TiO2-PES Composite Fiber Fibrous Material

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Unroofing Technique for Anomalous Origin of the Left Coronary Artery from the Right Sinus of Valsalva: Report of a Case

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World Journal of Cardiovascular Surgery 2024年第6期14卷 69-77页

作者： Keisuke Morimoto Futoshi kobayashi Hiromu Horie Yuki Sakaguchi Einosuke Mizuta Department of Cardiovascular Surgery Sanin Rosai Hospital Yonago Japan Department ofCardiology Sanin Rosai Hospital Yonago Japan

Anomalous origin of the left coronary artery (AOLCA) from the right sinus of Valsalva constitutes a rare congenital coronary artery anomaly. Patients with an anomalous left main coronary artery face a significantly higher risk of sudden cardiac death compared to those with an anomalous right coronary artery. The anomalous coronary artery traversing between the ascending aorta and the pulmonary artery markedly heightens the risk of myocardial ischemia, arrhythmia, and sudden death. Symptomatic patients often exhibit a longer intramural course of the coronary artery, which may necessitate earlier intervention or influence the choice of surgical repair method. Surgical intervention is advocated for patients with this anomaly, even in the absence of symptoms. For anomalous aortic origin of a coronary artery from the opposite sinus of Valsalva with an intramural course, coronary unroofing is the preferred revascularization procedure. This report presents a case of AOLCA originating from the right sinus of Valsalva, treated surgically using the unroofing technique for the aortic intramural segment of the anomalous coronary artery traversing between the great vessels. The unroofing technique is recommended for treating AOLCA with an extensive intramural course that does not involve the commissure.

关键词： Unroofing Technique Anomaly of Coronary Artery Anomalous Origin of Left Coronary Artery

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Conversion surgery after gemcitabine and cisplatin plus durvalumab for advanced intrahepatic cholangiocarcinoma:A case report

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World Journal of Clinical Cases 2024年第34期12卷 6721-6727页

作者： Yu Igata Masashi Kudo Motohiro Kojima Shota Kami Keishiro Aoki Tomoyuki Satake Tatsushi kobayashi Motokazu Sugimoto Shin kobayashi Masaru Konishi Naoto Gotohda Department of Hepatobiliary and Pancreatic Surgery National Cancer Center Hospital EastKashiwa 277-8577Japan Exploratory Oncology Research and Clinical Trial Center National Cancer CenterKashiwa 277-8577Japan Department of Hepatobiliary and Pancreatic Oncology National Cancer Center Hospital EastKashiwa 277-8577Japan Department of Diagnostic Radiology National Cancer Center Hospital EastChiba 277-8577Japan

BACKGROUND The combination of immune checkpoint inhibitors and chemotherapy has shown promising results for the treatment of advanced biliary tract cancer(BTC).Based on the results of the TOPAZ-1 trial,a gemcitabine and cisplatin plus durvalumab(GCD)regimen was recently approved as first-line therapy for patients with advanced ***,post-GCD conversion surgery has not been previously ***,we describe a case of advanced intrahepatic cholangiocarcinoma(ICC)successfully treated with radical surgery after *** SUMMARY A 65-year-old female diagnosed with advanced ICC with periductal infiltration into the hepatic hilum underwent eight cycles of GCD,followed by durvalumab maintenance treatment,with mild adverse *** response was ***,a conversion surgery with extended left hepatectomy and bile duct resection was *** resection margins were negative,and the pathological diagnosis was compatible with small duct type *** patient remained disease-free for 8 months without adjuvant *** We describe the case of a patient who received successful conversion surgery after GCD treatment for advanced ICC.

关键词： Conversion surgery Intrahepatic cholangiocarcinoma Small duct type Immunotherapy Case report

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Germination and appressorium formation of Pyricularia oryzae Cavara can be inhibited by reduced concentration of Blasin~? Flowable with carbon dioxide microbubbles

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Journal of Integrative Agriculture 2018年第9期17卷 2024-2030页

作者： Tamaki masahiko kobayashi Fumiyuki Suehiro Keisuke Ohsato Shuichi Sato Michio School of Agriculture Meiji University Faculty of Applied Life Science Nippon Veterinary and Life Science University

We investigated the possibility to reduce the usage of Blasin^Flowable （BF）, a disinfectant inhibiting the germination and appressorium formation of Pyricularia oryzae Cavara conidia, by using carbon dioxide microbubbles （CO2MB）. Germination was significantly inhibited by 10 000-fold diluted BF solution containing CO2MB generated by the decompression-type generator compared to CO2 millibubbles （CO2MMB） and CO2MB generated by the gas-water circulating-type generator. Appressodum formation in the 10 000-fold diluted BF solution containing both CO2MBs was less than that in CO2MMB. Scanning electron microscopy showed wrinkles and dents on the surface of conidia treated with 5 000-fold diluted BF solution containing both CO2MBs. Via transmission electron microscopy, we observed the expansion of the vacuole and the intracellular space and bloated or absent lipid granules in the conidia treated with BF solution containing both CO2MBs. Our results show that inhibition of the conidium germination and appressorium formation of P. oryzae Cavara by 10 000-fold diluted BF solution could be achieved by using the decompression-type CO2MB.

关键词： appressorium formation Blasin^Flowable germination Pyricularia oryzae carbon dioxide microbubble

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