Zobrazeno 1 - 10
of 265
pro vyhledávání: '"Ryuichi, Arakawa"'
Autor:
Takashi Nakakoji, Kaori Yoshino, Kazuki Izutsu, Hirofumi Sato, Hiroyuki Miyake, Eiko Mieda, Satoshi Shinoda, Hiroshi Tsukube, Hideya Kawasaki, Ryuichi Arakawa, Daisuke Ono, Motohiro Shizuma
Publikováno v:
Frontiers in Chemistry, Vol 8 (2020)
A series of copper(II) complexes with chiral tetradentate ligands, N,N′-ethylene- bis(S-amino acid methyl amide or methyl ester) prepared from S-alanine, S-phenylalanine, S-valine or S-proline, was generated in methanol. The copper complexes provid
Externí odkaz:
https://doaj.org/article/45b9e4136e3748af91eba7d7c7cf7845
Autor:
Fan Xia, Yande Peng, Sedat Pala, Ryuichi Arakawa, Wei Yue, Pei-Chi Tsao, Chun-Ming Chen, Hanxiao Liu, Megan Teng, Jong Ha Park, Liwei Lin
Publikováno v:
2023 IEEE 36th International Conference on Micro Electro Mechanical Systems (MEMS).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28e0b0ce9ddeabe16a1fa07baa3a83de
https://doi.org/10.1109/mems49605.2023.10052391
https://doi.org/10.1109/mems49605.2023.10052391
Autor:
Eiko Mieda, Hideya Kawasaki, Motohiro Shizuma, Daisuke Ono, Takashi Nakakoji, Satoshi Shinoda, Hirofumi Sato, Hiroshi Tsukube, Ryuichi Arakawa, Hiroyuki Miyake
Publikováno v:
RSC advances. 11(57)
An electrospray ionization mass spectrometric method for the simultaneous analysis of the enantiomeric excess of free amino acids, without chromatographic separation, was demonstrated using a quasi-racemic mixture of deuterium-labelled and unlabelled
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7dcfda582bef2f307b35cc422cb7c382
https://pubmed.ncbi.nlm.nih.gov/35492793
https://pubmed.ncbi.nlm.nih.gov/35492793
Autor:
Eiko Mieda, Ryuichi Arakawa, Motohiro Shizuma, Daisuke Ono, Hideya Kawasaki, Hirofumi Sato, Takashi Nakakoji, Hiroshi Tsukube, Kaori Yoshino, Satoshi Shinoda, Hiroyuki Miyake, Kazuki Izutsu
Publikováno v:
Frontiers in Chemistry, Vol 8 (2020)
Frontiers in Chemistry
Frontiers in Chemistry
A series of copper(II) complexes with chiral tetradentate ligands, N,N′-ethylene- bis(S-amino acid methyl amide or methyl ester) prepared from S-alanine, S-phenylalanine, S-valine or S-proline, was generated in methanol. The copper complexes provid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3c07e219c2e6399ac6dd0f63b14a653
Autor:
Ryuichi Arakawa, Anyarat Watthanaphanit, Chayanaphat Chokradjaroen, Nagahiro Saito, Kazuko Yamashita, Sewan Theeramunkong, Ratana Rujiravanit
Publikováno v:
Carbohydrate Polymers. 167:1-11
Solution plasma (SP) treatment in combination with oxidizing agents, i.e., hydrogen peroxide (H2O2), potassium persulfate (K2S2O8) and sodium nitrite (NaNO2) were adopted to chitosan degradation in order to achieve fast degradation rate, low chemical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0863e457d83e397da3252f32c1c30782
https://doi.org/10.1016/j.carbpol.2017.03.006
https://doi.org/10.1016/j.carbpol.2017.03.006
Autor:
Hiroshi Tsukube, Motohiro Shizuma, Hideya Kawasaki, Ryuichi Arakawa, Hiroyuki Miyake, Hirofumi Sato, Satoshi Shinoda, Daisuke Ono, Takashi Nakakoji
Publikováno v:
Chemical communications (Cambridge, England). 56(1)
By using electrospray ionization mass spectrometry coupled with the use of deuterium-labelled quasienantiomers, enantioselective coordination of a free amino acid as the second ligand of a copper(II) complex with a novel chiral tetradentate ligand wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac8d549329bcea20449cf993fe2cce94
https://pubmed.ncbi.nlm.nih.gov/31710051
https://pubmed.ncbi.nlm.nih.gov/31710051
Autor:
Takashi Nakakoji, Hirofumi Sato, Daisuke Ono, Hiroyuki Miyake, Eiko Mieda, Satoshi Shinoda, Hiroshi Tsukube, Hideya Kawasaki, Ryuichi Arakawa, Motohiro Shizuma
Publikováno v:
RSC Advances; 11/4/2021, Vol. 11 Issue 57, p36237-36241, 5p
Autor:
Hiromi Hasegawa, Hideya Kawasaki, Issey Osaka, Ryuichi Arakawa, Masaki Yamamoto, Kazuko Yamashita
Publikováno v:
Journal of Luminescence. 180:315-320
Thiolate-protected Au 25 nanoclusters (NCs) have been shown to be efficient 1 O 2 photosensitizers. The 1 O 2 -generation efficiency of thiolate-protected Au NCs is expected to depend on the thiolate ligand species and size of the gold clusters. In t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc73c0a5ae8954118836597eb358084a
https://doi.org/10.1016/j.jlumin.2016.08.059
https://doi.org/10.1016/j.jlumin.2016.08.059
Autor:
Issey Osaka, Hideya Kawasaki, Akio Miyazato, Tatsuya Murakami, Ryuichi Arakawa, Tomoyuki Ozawa, Satoshi Hamada
Publikováno v:
Analytical Sciences. 32:587-591
Plant leaves administered with systemic insecticides as agricultural chemicals were analyzed using imaging mass spectrometry (IMS). Matrix-assisted laser desorption/ionization (MALDI) is inadequate for the detection of insecticides on leaves because
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed9535a29c8201849bce036b1e06f540
https://doi.org/10.2116/analsci.32.587
https://doi.org/10.2116/analsci.32.587
Autor:
Yasushi Shigeri, Takuya Kamimura, Tomoya Kinumi, Masanori Ando, Ryuichi Arakawa, Koichi Uegaki, Hiroaki Sato, Fumito Tani
Publikováno v:
European Journal of Mass Spectrometry. 22:83-90
The sensitivity, range of applications, and reaction mechanism of 2-hydrazinoquinoline as a reactive matrix for matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) were examined. Using a reaction chamber (125 L) equipped with a s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b0a62d6c4972000b4ce2c21672e246f
https://doi.org/10.1255/ejms.1413
https://doi.org/10.1255/ejms.1413