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  1. Article

    Open Access

    Impact of intratumoral microbiome on tumor immunity and prognosis in human pancreatic ductal adenocarcinoma

    Recent evidence suggests that the presence of microbiome within human pancreatic ductal adenocarcinoma (PDAC) tissue potentially influences cancer progression and prognosis. However, the significance of tumor-...

    Shohei Abe, Atsuhiro Masuda, Tomonori Matsumoto, Jun Inoue in Journal of Gastroenterology (2024)

  2. No Access

    Article

    Superstrate-type photovoltaics with copper indium sulfide (CuInS2) fabricated by solution processes: correlation between interfacial charge transfer and solar cell performance

    Copper indium sulfide, CuInS2 (CIS) semiconductors have currently attracted a great deal of attention as photosensitizers for solar cells. In this study, CIS/CdS/TiO2 solar cells were prepared by a simple, low-co...

    Takayuki Harino, Yoshiyuki Harada, Akira Fujimoto in Journal of Applied Electrochemistry (2024)

  3. Article

    Open Access

    A comprehensive analysis of tumor-stromal collagen in relation to pathological, molecular, and immune characteristics and patient survival in pancreatic ductal adenocarcinoma

    Abundant collagen deposition is a hallmark of pancreatic ductal adenocarcinomas (PDACs). This study clarified the interactive relationship between tumor-stromal collagen, molecular and immune characteristics, ...

    Shigeto Ashina, Atsuhiro Masuda, Kohei Yamakawa in Journal of Gastroenterology (2023)

  4. Article

    Open Access

    Histological diagnosis of polyploidy discriminates an aggressive subset of hepatocellular carcinomas with poor prognosis

    Although genome duplication, or polyploidization, is believed to drive cancer evolution and affect tumor features, its significance in hepatocellular carcinoma (HCC) is unclear. We aimed to determine the chara...

    Takanori Matsuura, Yoshihide Ueda, Yoshiyuki Harada in British Journal of Cancer (2023)

  5. Article

    Open Access

    Benefits of pancreatic parenchymal endoscopic ultrasonography in predicting microscopic precancerous lesions of pancreatic cancer

    Pancreatic cancer primarily arises from microscopic precancerous lesions, such as pancreatic intraepithelial neoplasia (PanIN) and acinar-to-ductal metaplasia (ADM). However, no established method exists for p...

    Kohei Yamakawa, Noriko Inomata, Atsuhiro Masuda, Mamoru Takenaka in Scientific Reports (2023)

  6. Article

    Open Access

    Advantage of endoscopic papillectomy for ampullary tumors as an alternative treatment for pancreatoduodenectomy

    Endoscopic papillectomy for early ampullary tumors is considered a minimally invasive and useful alternative to pancreatoduodenectomy; however, its indications remain unclear. This study aimed to clarify the a...

    Shohei Abe, Arata Sakai, Atsuhiro Masuda, Mika Miki, Yoshiyuki Harada in Scientific Reports (2022)

  7. No Access

    Article

    Synthesis and characterization of polypyrrole-platinum nanocomposite-coated latex particles

    Deposition of polypyrrole-platinum (PPy-Pt) nanocomposite from aqueous solution onto micrometer-sized polystyrene (PS) particles was conducted. The PS seed particles and resulting composite particles were exte...

    Hiroaki Takeoka, Hiroyuki Hamasaki, Yoshiyuki Harada in Colloid and Polymer Science (2015)

  8. Article

    Open Access

    Naturally inspired SERS substrates fabricated by photocatalytically depositing silver nanoparticles on cicada wings

    Densely stacked Ag nanoparticles with an average diameter of 199 nm were effectively deposited on TiO2-coated cicada wings (Ag/TiO2-coated wings) from a water-ethanol solution of AgNO3 using ultraviolet light irr...

    Ichiro Tanahashi, Yoshiyuki Harada in Nanoscale Research Letters (2014)

  9. No Access

    Article

    Cl Do** Effect by Thermal Treatment with KCl for ZnO Single Crystals

    We investigated the optical and electrical properties of ZnO single crystals coated with KCl by examining the photoluminescence (PL) at 9 K and the temperature dependence of the carrier concentration. The band...

    Akira Fujimoto, Yoshiyuki Harada in MRS Online Proceedings Library (2011)

  10. No Access

    Chapter and Conference Paper

    Lattice Vibrational Modes in 1222 Phase of Pb-Sr-La-Ln-Cu-O System (Ln; Gd, Dy, Ho, Er)

    Measurements of infrared absorption in insulating compounds of the 1222 phase of Pb-Sr-La-Ln-Cu-O system have been made. Lanthanoid (Ln) ions of Er, Ho, Dy and Gd have been used. Absorption peaks near 600 cm−1 an...

    Yoshikazu Hayashi, Yoshiyuki Harada, Hiroyuki Sasakura in Advances in Superconductivity IV (1992)

  11. No Access

    Chapter and Conference Paper

    Infrared Absorption in Single Crystals of Bi-Sr-(Ca)-Cu-O System

    Lattice absorption measurements in the spectral region between 750 cm−1 and 400 cm−1 have been made in single crystals of semiconducting Bi2Sr2CuO6 and superconducting Bi2Sr2CaCu2O8. The phenomenon known as the “...

    Yoshikazu Hayashi, Yoshiyuki Harada, Nobuo Fukuoka in Advances in Superconductivity III (1991)