Results 31 to 40 of about 276,497 (319)

Fluorescence Polarization Immunoassay of Progesterone.

Biological and Pharmaceutical Bulletin, 1997
A homogeneous fluorescence polarization immunoassay (FPIA) was developed to measure levels of progesterone in urine using a TDx analyzer in photocheck mode (Abbott Labs). Two tracers of ethylenediamine fluorescein thiocarbamyl (EDF) were employed; one was synthesized from 11 alpha-hydroxyhemisuccinate progesterone (Prog-11OH-HS) and the other was ...
Sergei A. Eremin, Jeong Eun Choi, Jong Sei Park, Do Young Yoon, Myung Ja Choi   +4 more
openaire   +4 more sources

Picosecond time-resolved fluorescence of phycobiliproteins [PDF]

, 1990
The α- and β-subunits of C-phycocyanin from Mastigocladus laminosus were prepared according to revised procedures. Both subunits are isolated as dimers, which can be dissociated into monomers with detergent mixtures.
Bryant, Bryant, Burke, Castenholz, Fischer, Füglistaller, Gantt, Geiselhart, Glazer, Glazer, Grabowski, H. Scheer, Hefferle, Holzwarth, J. Gottstein, Kufer, Köhler, Köhler, Köst-Reyes, Lundell, MacColl, Martin, Mimuro, Mimuro, P. Geiselhart, R. Fischer, Rümbeli, S. Schneider, Sandström, Sauer, Scharnagl, Scheer, Scheer, Scheer, Scheer, Scheer, Scheer, Schirmer, Schirmer, Schmidt, Schneider, Siebzehnrübl, Siebzehnrübl, Switalsky, Teale, Wehrmeyer, Zuber   +46 more
core   +1 more source

Polarization-correlated photon pairs from a single ion

, 2009
In the fluorescence light of a single atom, the probability for emission of a photon with certain polarization depends on the polarization of the photon emitted immediately before it.
Blinov, Briegel, Browne, C. Schuck, Cabrillo, Carreño, Diedrich, Duan, Dubin, F. Dubin, F. Rohde, Feng, Gerber, Gomer, Gomer, J. Eschner, J. Huwer, Jakob, Jakob, Jurczak, Kimble, M. Almendros, N. Piro, Olmschenk, Rotter, Schubert, Schubert, Simon, Skornia, Volz, Wilk, Wilk, Wilk, Zoller   +33 more
core   +1 more source

Fluorescence nanoscopy by polarization modulation and polarization angle narrowing [PDF]

Nature Methods, 2014
When excited with rotating linear polarized light, differently oriented fluorescent dyes emit periodic signals peaking at different times. We show that measurement of the average orientation of fluorescent dyes attached to rigid sample structures mapped to regularly defined (50 nm)(2) image nanoareas can provide subdiffraction resolution (super ...
Hafi, N., Grunwald, M., van den Heuvel, L., Aspelmeier, T., Chen, J., Zagrebelsky, M., Schütte, O., Steinem, C., Korte, M., Munk, A., Walla, P.   +10 more
openaire   +5 more sources

Insights into the renal pathophysiology in Hermansky‐Pudlak syndrome‐1 from urinary extracellular vesicle proteomics and a new mouse model

FEBS Letters, Volume 599, Issue 7, Page 1055-1074, April 2025.
Hermansky‐Pudlak syndrome type 1 (HPS‐1) is a rare, autosomal recessive disorder with poorly understood renal involvement. Urinary extracellular vesicle (uEV) proteomics and a novel Hps1 mouse model reveal mitochondrial abnormalities and lipid accumulation in HPS‐1 kidney proximal tubule cells. Serum ApoA1 correlates with kidney function in our patient
Dawn M. Maynard, Bernadette R. Gochuico, Hadass Pri Chen, Christopher K. E. Bleck, Patricia M. Zerfas, Wendy J. Introne, William A. Gahl, May C. V. Malicdan   +7 more
wiley   +1 more source

Functional variation among LPMOs revealed by the inhibitory effects of cyanide and buffer ions

FEBS Letters, Volume 599, Issue 9, Page 1317-1336, May 2025.
This study addresses the inhibition of lytic polysaccharide monooxygenases (LPMOs) by cyanide and explains how and why the magnitude of observed inhibitory effects depends on the way LPMO reactions are setup and on the type of LPMO. Enzymes known as lytic polysaccharide monooxygenases (LPMOs) are mono‐copper polysaccharide‐degrading peroxygenases that ...
Ole Golten, Lorenz Schwaiger, Zarah Forsberg, Kelsi R. Hall, Anton A. Stepnov, Tom Z. Emrich‐Mills, Iván Ayuso‐Fernández, Morten Sørlie, Roland Ludwig, Åsmund Kjendseth Røhr, Vincent G. H. Eijsink   +10 more
wiley   +1 more source

Modeling of oligomeric-state dependent spectral heterogeneity in the B875 light-harvesting complex of Rhodobacter sphaeroides by numerical simulation [PDF]

, 1999
A series of detergent-isolated light-harvesting 1 (LH1, B875) complexes from Rhodobacter sphaeroides, estimated to range in size from (RâBChl2)4 to (RâBChl2)13, was used to study the combined effects of spectral disorder and excitonic interactions on ...
Grondelle, R. van, Hunter, C.N., Niederman, R.A., Westerhuis, W.H.J.   +3 more
core   +2 more sources

Protonophore activity of short‐chain fatty acids induces their intracellular accumulation and acidification

FEBS Letters, EarlyView.
The protonated form of butyrate, as well as other short‐chain fatty acids (SCFAs), is membrane permeable. In acidic extracellular environments, this can lead to intracellular accumulation of SCFAs and cytosolic acidification. This phenomenon will be particularly relevant in acidic environments such as the large intestine or tumor microenvironments ...
Muwei Jiang, Frans Bianchi, Geert van den Bogaart   +2 more
wiley   +1 more source

High efficiency entangled photon pair collection in type II parametric fluorescence [PDF]

, 2001
We report on a method for optimizing the collection of entangled photon pairs in type-II parametric fluorescence. With this technique, we detected 360000 polarization-entangled photon pairs per second in the near-IR region in single-mode optical fibers.
arxiv   +1 more source

A push-pull unsymmetrical subphthalocyanine dimer [PDF]

, 2015
Unsymmetrical subphthalocyanine fused dimers have been prepared from appropriate ortho-dinitrile SubPc precursors. In particular, either electron-donating or electron-accepting substituents have been introduced on each SubPc constituent unit, resulting ...
Claessens, Christian G., Clark, Tim, Guldi, Dirk M., Martinez-Diaz, M. Victoria, Torres, Tomas, Zango, German, Zirzlmeier, Johannes   +6 more
core   +2 more sources