scholarly journals Lutetium-containing sinoporphyrin sodium: a water-soluble photosensitizer with balanced fluorescence and phosphorescence for ratiometric oxygen sensing

RSC Advances ◽  
2020 ◽  
Vol 10 (54) ◽  
pp. 32938-32945
Author(s):  
Lixin Zang ◽  
Huimin Zhao
Keyword(s):  
Oxygen Sensing ◽  
Water Soluble ◽  
Fluorescence And Phosphorescence

A lutetium(iii)-porphyrin was designed as a phosphorescent photosensitizer to balance phosphorescence and fluorescence emissions for ratiometric O2 sensing.

Preparation and oxygen sensing properties of water-soluble silicon nanoparticles assembled SBA-15

2019 ◽  
Vol 111 ◽  
pp. 1-6 ◽  
Author(s):  
Ting Gong ◽  
Yanjuan Li ◽  
Bingfu Lei ◽  
Jianle Zhuang ◽  
Yingliang Liu ◽  
...  
Keyword(s):  
Silicon Nanoparticles ◽  
Oxygen Sensing ◽  
Water Soluble ◽  
Sensing Properties ◽  
Soluble Silicon

scholarly journals Complexes trans-Pt(BODIPY)X(PEt3)2: excitation energy-dependent fluorescence and phosphorescence emissions, oxygen sensing and photocatalysis

2016 ◽  
Vol 45 (25) ◽  
pp. 10420-10434 ◽  
Author(s):  
Peter Irmler ◽  
Rainer F. Winter
Keyword(s):  
Excitation Energy ◽  
Oxygen Sensing ◽  
Single Component ◽  
Quantum Yields ◽  
Dual Fluorescence ◽  
Anionic Ligand ◽  
Energy Dependent ◽  
Fluorescence And Phosphorescence

Complexes trans-Pt(BODIPY)X(PEt3)2 exhibit dual fluorescence and phosphorescence emissions, whose intensities are modulated by the anionic ligand X− and the excitation wavelengths. They constitute efficient single-component 3O2 sensors and photocatalysts for aereal photooxidations with quantum yields near unity.

Water-soluble gadolinium porphyrin as a multifunctional theranostic agent: Phosphorescence-based oxygen sensing and photosensitivity

2017 ◽  
Vol 142 ◽  
pp. 465-471 ◽  
Author(s):  
Lixin Zang ◽  
Huimin Zhao ◽  
Jianyu Hua ◽  
Feng Qin ◽  
Yangdong Zheng ◽  
...  
Keyword(s):  
Oxygen Sensing ◽  
Water Soluble ◽  
Theranostic Agent

scholarly journals Synthesis of a new DTTA- and 5-phenyl-2,2′-bipyridine-based ditopic ligand and its Eu3+ complex

2016 ◽  
Vol 94 (7) ◽  
pp. 599-603 ◽  
Author(s):  
Dmitry S. Kopchuk ◽  
Dmitry E. Pavlyuk ◽  
Igor S. Kovalev ◽  
Grigory V. Zyryanov ◽  
Vladimir L. Rusinov ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Fluorescence Enhancement ◽  
Photophysical Properties ◽  
Butyl Ester ◽  
Water Soluble ◽  
Improved Method ◽  
Strong Fluorescence ◽  
Phosphorescence Quenching ◽  
Fluorescence And Phosphorescence ◽  
Ditopic Ligand

A new ditopic ligand based on diethylenetriamine-N,N,N″,N″-tetraacetate (DTTA) and 5-phenyl-2,2′-bipyridine has been synthesized. The improved method for the synthesis of DTTA tert-butyl ester has been developed. The water-soluble Eu3+*DTTA complex of this ligand has been prepared, and its photophysical properties have been studied. Due to the presence of an extra chelating unit, 5-phenyl-2,2′-bipyridine, this Eu3+*DTTA complex demonstrated a strong fluorescence response to the Zn2+ cation (fluorescence enhancement) and the simultaneous fluorescent and phosphorescent response (fluorescence and phosphorescence quenching) to the Cu2+ or Ni2+ cations in aqueous solutions.

A Resorcinol-Formaldehyde Resin as an Embedding Material for Electron Microscopy of Membranes

1969 ◽  
Vol 27 ◽  
pp. 328-329 ◽  
Author(s):  
J. G. Robertson ◽  
D. F. Parsons
Keyword(s):  
Electron Microscopy ◽  
Osmium Tetroxide ◽  
Neutral Lipids ◽  
Lipid Extraction ◽  
Water Soluble ◽  
Formaldehyde Resin ◽  
Electron Microscope Autoradiography ◽  
Resorcinol Formaldehyde ◽  
Major Disadvantage ◽  
Cell Organization

The extraction of lipids from tissues during fixation and embedding for electron microscopy is widely recognized as a source of possible artifact, especially at the membrane level of cell organization. Lipid extraction is also a major disadvantage in electron microscope autoradiography of radioactive lipids, as in studies of the uptake of radioactive fatty acids by intestinal slices. Retention of lipids by fixation with osmium tetroxide is generally limited to glycolipids, phospholipids and highly unsaturated neutral lipids. Saturated neutral lipids and sterols tend to be easily extracted by organic dehydrating reagents prior to embedding. Retention of the more saturated lipids in embedded tissue might be achieved by developing new cross-linking reagents, by the use of highly water soluble embedding materials or by working at very low temperatures.

Ferritin Labeled Antibody Staining of Thin Sections

1969 ◽  
Vol 27 ◽  
pp. 420-421
Author(s):  
J. D. McLean ◽  
S. J. Singer
Keyword(s):  
Biological Material ◽  
Water Soluble ◽  
Thin Sections ◽  
Antibody Staining ◽  
Thin Sectioning ◽  
Ultrathin Sections

The successful application of ferritin labeled antibodies (F-A) to ultrathin sections of biological material has been hampered by two main difficulties. Firstly the normally used procedures for the preparation of material for thin sectioning often result in a loss of antigenicity. Secondly the polymers employed for embedding may non-specifically absorb the F-A. Our earlier use of cross-linked polyampholytes as embedding media partially overcame these problems. However the water-soluble monomers used for this method still extract many lipids from the material.

The Effect of Benzene on Bluegill Olfactory Lamellae

1985 ◽  
Vol 43 ◽  
pp. 574-575
Author(s):  
D.R. Mattie ◽  
J.W. Fisher
Keyword(s):  
Surface Morphology ◽  
Soluble Fraction ◽  
Lepomis Macrochirus ◽  
Sublethal Concentration ◽  
Water Soluble ◽  
Major Constituent ◽  
Jet Fuels ◽  
Aquatic Biota ◽  
Normal Surface ◽  
Cacodylate Buffer

Jet fuels such as JP-4 can be introduced into the environment and come in contact with aquatic biota in several ways. Studies in this laboratory have demonstrated JP-4 toxicity to fish. Benzene is the major constituent of the water soluble fraction of JP-4. The normal surface morphology of bluegill olfactory lamellae was examined in conjunction with electrophysiology experiments. There was no information regarding the ultrastructural and physiological responses of the olfactory epithelium of bluegills to acute benzene exposure.The purpose of this investigation was to determine the effects of benzene on the surface morphology of the nasal rosettes of the bluegill sunfish (Lepomis macrochirus). Bluegills were exposed to a sublethal concentration of 7.7±0.2ppm (+S.E.M.) benzene for five, ten or fourteen days. Nasal rosettes were fixed in 2.5% glutaraldehyde and 2.0% paraformaldehyde in 0.1M cacodylate buffer (pH 7.4) containing 1.25mM calcium chloride. Specimens were processed for scanning electron microscopy.

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