Research field (2)：
Pharmaceuticals - analytical and physicochemistry
, Pharmaceuticals - health and biochemistry
Research theme for competitive and other funds (3)：
2017 - 2021 Relationship between Serum Oxytocin Levels and Depression in Patients with Rheumatoid Arthritis
2014 - 2017 Development of assay utilizing DNA aptamer and applying to a clinical examination
2011 - 2013 Development of high sensitivity assay for oxytocin, peptide hormone, and its clinical application utilizing aptamer
Papers (16)：
Masaru Kato, Yumi Fujita, Takuya Iizuka, Kyohei Nozaki, Sho Takano, Takashi Funatsu, Yoshihiro Sano, Shuhei Murayama, Koji Karasawa. Extraction of urinary cell-free DNA by using triamine-modified silica particles for liquid biopsy. Analytical and bioanalytical chemistry. 2020. 412. 23. 5647-5652
Ayako Watanabe, Koji Karasawa, Shuhei Murayama, Yoshihiro Sano, Mio Takagi, Eiichi Yamamoto, Shigeo Murata, Masaru Kato. Enrichment of liposomal nanomedicines using monolithic solid phase extraction discs following preactivation with bivalent metal ion solutions. Journal of chromatography. A. 2018. 1564. 224-227
Koji Karasawa, Yoshihiro Sano, Nobumasa Kato, Hidetoshi Arakawa. Development and clinical application of a bioluminescence enzyme immunoassay for oxytocin. Luminescence : the journal of biological and chemical luminescence. 2018. 33. 4. 670-674
Shiomi Haraya, Koji Karasawa, Yoshihiro Sano, Kimiko Ozawa, Nobumasa Kato, Hidetoshi Arakawa. Development of a highly specific enzyme immunoassay for oxytocin and its use in plasma samples. Annals of clinical biochemistry. 2017. 54. 1. 101-106
Hidetoshi Arakawa, Koji Karasawa, Yoshihiro Sano. Development of Bioluminescent DNA Analysis and Its Clinical Applications. BUNSEKI KAGAKU. 2016. 65. 9. 497-509
