Turn-on type chemical sensing of vitamin K4 by fluorene dendrimers with naphthalene segments.
G1 and G2 fluorene dendrimers with naphthalene termini were synthesized as a fluorescence turn-on type chemical sensor for vitamin K4. The fluorene dendrimers were prepared by Williamson ether reaction between the fluorene core with dihydroxy groups and dendritic naphthalene segments with methylene chloride by a convergent method. We investigated the relationship between the dendrimer generation and vitamin K4 recognition of fluorene dendrimer with naphthalene termini in CHCl3. Addition of vitamin K4 enhanced the fluorescence intensity of the fluorene dendrimer. Especially, the G2 fluorene dendrimer was found to be an effective chemical sensor for vitamin K4 and better than the G1 fluorene dendrimer.
Division of Liberal Arts, School of Science and Engineering, Tokyo Denki University, Hatoyama, Hiki-gun, Saitama 350-0394, Japan. nadachi@mail.dendai.ac.jp.
Naoya
N
Adachi
Division of Science, School of Science and Engineering, Tokyo Denki University, Hatoyama, Hiki-gun, Saitama 350-0394, Japan.
Hiroki
H
Sugiyama
Division of Science, School of Science and Engineering, Tokyo Denki University, Hatoyama, Hiki-gun, Saitama 350-0394, Japan.
Masafumi
M
Arai
Division of Science, School of Science and Engineering, Tokyo Denki University, Hatoyama, Hiki-gun, Saitama 350-0394, Japan.
Hideo
H
Ogawa
D002725:Chloroform; D050091:Dendrimers / Q000138:chemical synthesis* / Q000737:chemistry; D005449:Fluorenes / Q000138:chemical synthesis* / Q000737:chemistry; D008752:Methylene Chloride / Q000737:chemistry; D015335:Molecular Probes / Q000138:chemical synthesis* / Q000737:chemistry; D009281:Naphthalenes / Q000737:chemistry; D012996:Solutions; D013050:Spectrometry, Fluorescence; D014812:Vitamin K / Q000032:analysis*
D050091:Dendrimers; D005449:Fluorenes; D015335:Molecular Probes; D009281:Naphthalenes; D012996:Solutions; D014812:Vitamin K; C031721:naphthalene; C041509:fluorene; D008752:Methylene Chloride; D002725:Chloroform