Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Ursula Pfeifer-Fukumura"'
Publikováno v:
The Journal of Physical Chemistry A. 106:2232-2236
The dipole moments of four photochromic derivatives of indolinospirobenzopyran have been studied in their spiro and their open merocyanine form, in dioxane. Determinations have been done by electrooptical absorption measurements (EOAM). To prepare ei
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::979b79c0f2279c3f3a7f6e733a0020ac
https://doi.org/10.1021/jp012562q
https://doi.org/10.1021/jp012562q
Autor:
Hiroshi Masuhara, Michael Bletz, Hiroshi Fukumura, Jonathan Hobley, Ursula Pfeifer-Fukumura, Tsuyoshi Asahi
Publikováno v:
The Journal of Physical Chemistry A. 106:2265-2270
We report the first ultrafast ring closure kinetics of the merocyanine (MC) of a reverse photochromic spiropyran 1‘,3‘,3‘-trimethyl-6,8-dinitrospiro[2H-1-benzopyran-2,2-indoline] (6,8-dinitro BIPS) and its 1‘-(2-carboxyethyl) substituted deri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec2dc9c2203c4a874dfe2508fad359ca
https://doi.org/10.1021/jp012564a
https://doi.org/10.1021/jp012564a
Autor:
Ursula Pfeifer-Fukumura
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 111:145-156
The thermal ring-opening reaction of a negative photochronic spirobenzopyran was investigated in the presence and absence of albumins. In the presence of the proteins, the formation of the merocyanine form from the spiro form is enhanced markedly by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8cf8dea8b0dee936697a12a9c69307ed
https://doi.org/10.1016/s1010-6030(97)00257-8
https://doi.org/10.1016/s1010-6030(97)00257-8
Publikováno v:
Chemistry Letters. 23:1589-1592
Polystyrene microspheres were modified with polar and nonpolar groups. A fluorescent probe with spectral properties sensitive to environments was used to characterize the surface. Using the technique of laser trapping the fluorescence spectrum of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12d1f79a904f3a375674917388c48092
https://doi.org/10.1246/cl.1994.1589
https://doi.org/10.1246/cl.1994.1589
Autor:
Iris Sound, Said A. Ibrahim, A. M. Hammam, Dina M. Fouad, Wolfram Baumann, Ursula Pfeifer-Fukumura, Heike Holthues
Publikováno v:
Zeitschrift fur Naturforschung. C, Journal of biosciences. 61(3-4)
An indirect format enzyme-linked immuno-sorbent assay (ELISA) on graphite rods (Ø 0.8 mm x 20 mm) and, for comparison, on microtiter plates has been developed against terbuthylazine. For this purpose, a series of 2-aminoalkyl-4-chloro-6-terbuthyl-s-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e9dc4efe7631aece0a2f84609ae5f94
https://pubmed.ncbi.nlm.nih.gov/16729593
https://pubmed.ncbi.nlm.nih.gov/16729593
Publikováno v:
Journal of immunological methods. 304(1-2)
A series of new heterologous haptens has been synthesized and used as coating haptens in an antigen-immobilized immunoassay with a monoclonal antibody against atrazine. Coating was achieved by covalently linking the different haptens to a glutaraldeh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad570bc081d65bd02b7947281e7c6def
https://pubmed.ncbi.nlm.nih.gov/16111698
https://pubmed.ncbi.nlm.nih.gov/16111698
Publikováno v:
Fresenius' journal of analytical chemistry. 371(7)
2-Aminobutylamino-4-ethylamino-6-isopropylamino-1,3,5-triazine (ABA-atrazine) has been synthesized and used as a coating hapten in an immunoassay with a monoclonal antibody against terbutryn. Coating was achieved by covalently linking ABA-atrazine to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::50c9233e71246f02f2840e8badd37981
https://pubmed.ncbi.nlm.nih.gov/11769797
https://pubmed.ncbi.nlm.nih.gov/11769797
Publikováno v:
Talanta. 48(4)
The determination of trace levels of pesticides like atrazine in water samples of small, restricted volumes is one of the future demands of environmental analysis. In a brief review existing chromatographic and immunochemical methods for atrazine are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cb5564af2f80ab9220fdd41a3929db9
https://pubmed.ncbi.nlm.nih.gov/18967523
https://pubmed.ncbi.nlm.nih.gov/18967523