Zobrazeno 1 - 10
of 163
pro vyhledávání: '"Naoya, Kishikawa"'
Publikováno v:
Sensors, Vol 24, Iss 23, p 7844 (2024)
Herein, we developed a colorimetric method for the determination of Cu2+ and Zn2+ using NBD-G as a novel selective metal sensor. NBD-G was easily synthesized by a nucleophilic substitution reaction between 4-chloro-7-nitro-2,1,3-benzoxadiazole (NBD-C
Externí odkaz:
https://doaj.org/article/dbd8c7491cfe49e8920e568f36f97086
Publikováno v:
Sensors, Vol 23, Iss 23, p 9611 (2023)
Biotin, or vitamin B7, is essential for metabolic reactions. It must be obtained from external sources such as food and biotin/vitamin supplements because it is not biosynthesized by mammals. Therefore, there is a need to monitor its levels in supple
Externí odkaz:
https://doaj.org/article/617b5ec58e364782abfcc97aaca00f9e
Autor:
Akari Tange, Naoya Kishikawa, Yusuke Sakamoto, Mahmoud El-Maghrabey, Mitsuhiro Wada, Naotaka Kuroda
Publikováno v:
Molecules, Vol 28, Iss 9, p 3654 (2023)
Carbon monoxide (CO) is a toxic, hazardous gas that has a colorless and odorless nature. On the other hand, CO possesses some physiological roles as a signaling molecule that regulates neurotransmitters in addition to its hazardous effects. Because o
Externí odkaz:
https://doaj.org/article/438581ea44c941f1a58e92978b850a52
Anthracycline-Functionalized Dextran as a New Signal Multiplication Tagging Approach for Immunoassay
Publikováno v:
Biosensors, Vol 13, Iss 3, p 340 (2023)
The most used kind of immunoassay is enzyme-linked immunosorbent assay (ELISA); however, enzymes suffer from steric effects, low stability, and high cost. Our research group has been developing quinone-linked immunosorbent assay (QuLISA) as a new pro
Externí odkaz:
https://doaj.org/article/2e4742e7279647718589efa5ba85b3c4
Publikováno v:
Molecules, Vol 28, Iss 5, p 2146 (2023)
Quinones are frequently used as derivatization reagents in HPLC analysis to improve detection sensitivity. In the present study, a simple, sensitive, and selective chemiluminescence (CL) derivatization strategy for biogenic amines, prior to their HPL
Externí odkaz:
https://doaj.org/article/23109a3c52ed449387059672d3cd7037
Publikováno v:
Molecules, Vol 28, Iss 1, p 96 (2022)
Ubiquinone (UQ) is considered one of the important biologically active molecules in the human body. Ubiquinone determination in human plasma is important for the investigation of its bioavailability, and also its plasma level is considered an indicat
Externí odkaz:
https://doaj.org/article/b2c4a859c31b4c9bb9425915e9229baf
Autor:
Makoto Takada, Suzuna Saruwatari, Yutaro Yanagita, Junpei Mutoh, Hajime Harada, Naoya Kishikawa, Takashi Kitahara, Naotaka Kuroda, Mitsuhiro Wada
Publikováno v:
Forensic Toxicology. 41:135-141
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4acaaa8d5e18634dc8d29d8122fff252
https://doi.org/10.1007/s11419-022-00636-8
https://doi.org/10.1007/s11419-022-00636-8
Autor:
Naoya KISHIKAWA, Sho NUMATA, Tomohiro UMENO, Mahmoud EL-MAGHRABEY, Kaname OHYAMA, Masakazu TANAKA, Naotaka KURODA
Publikováno v:
BUNSEKI KAGAKU. 71:351-356
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::deff7d9615da00a0c5f0968acc1318d2
https://doi.org/10.2116/bunsekikagaku.71.351
https://doi.org/10.2116/bunsekikagaku.71.351
Autor:
Makoto Takada, Masashi Sakamoto, Haruna Yamada, Naoya Kishikawa, Junpei Mutoh, Yukihide Shiraishi, Naotaka Kuroda, Mitsuhiro Wada
Publikováno v:
Chemical and Pharmaceutical Bulletin. 70:37-42
Eugenols (Eugs) such as eugenol (Eug), methyleugenol (MeEug), and linalool (Lin) in basil product are the main bioactive components of basil products and have a terminal double-bond. A sensitive HPLC-fluorescence method for Eugs derivatized with 4-(4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0920a89bd9a459fdeb800c641f10b810
https://doi.org/10.1248/cpb.c21-00575
https://doi.org/10.1248/cpb.c21-00575
Autor:
Mizuho Fukuda, Naoya Kishikawa, Taketo Samemoto, Kaoru Ohta, Kaname Ohyama, Mahmoud Hamed El-Maghrabey, Kazuto Ikemoto, Naotaka Kuroda
Publikováno v:
Chemical and Pharmaceutical Bulletin. 70:32-36
We have developed an HPLC-UV method for the determination of pyrroloquinoline quinone (PQQ), which utilizes a redox-based colorimetric reaction. In the proposed colorimetric reaction, the redox reaction between PQQ and dithiothreitol generates supero
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa2674e9308c0527daa932a96449a3d1
https://doi.org/10.1248/cpb.c21-00638
https://doi.org/10.1248/cpb.c21-00638