Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Oliver Kohls"'
Publikováno v:
Marine Chemistry. 97:262-276
We describe the fabrication of organically modified sol–gel (ORMOSIL) planar optodes for mapping the two-dimensional oxygen distribution in sediments. All sensor foils were based on the use of ruthenium(II)-tris-(4,7-diphenyl-1,10-phenantrolin)perc
Publikováno v:
Deep Sea Research Part I: Oceanographic Research Papers. 48:1741-1755
For the first time in situ, deep penetrating O2 profiles were measured in abyssal sediments in the western South Atlantic. Construction of deep penetrating O2 optodes and adaptation to a benthic profiling lander are described. The opto-chemical oxyge
Autor:
Oliver Kohls, Th. Scheper
Publikováno v:
Sensors and Actuators B: Chemical. 70:121-130
The development of a simple and very easy-to-use fiber optical oxygen multisensor measuring system is described. This fiber optical chemosensor (optode) is based on the fluorescence quenching of a special fluorophor by oxygen. Standard applications o
Publikováno v:
Chemical Engineering & Technology. 22:666-671
Publikováno v:
Scopus-Elsevier
University of Copenhagen
University of Copenhagen
By applying planar optodes and imaging techniques to a benthic photosynthetic mat, we demonstrated an extensive vertical and horizontal variation in O2 concentrations, O2 consumption, and O2 production. In light, the oxic zone could be divided into t
Publikováno v:
Aquatic Microbial Ecology. 18:157-164
Autor:
Ingo Klimant, Jens K. Gundersen, Oliver Kohls, Gerhard A. Holst, Ronnie N. Glud, Michael Kühl, Volker Meyer
Publikováno v:
Deep Sea Research Part I: Oceanographic Research Papers. 46:171-183
Oxygen microopt(r)odes have recently been introduced as an alternative to microelectrodes in the field of aquatic biology. We here describe adaptation, test results and first in situ measurements made with O2 microopt(r)odes on deep-sea benthic lande
Publikováno v:
Chemie Ingenieur Technik. 70:1611-1617
A modular luminescence lifetime imaging system for mapping oxygen distribution in biological samples
Publikováno v:
Scopus-Elsevier
We developed a new modular luminescence lifetime imaging system (MOLLI), that enables the imaging of luminescence lifetimes in the range of 1 ms to 1 s. The system can easily be adapted to different experimental applications. The central parts of the
Publikováno v:
Aquatic Microbial Ecology. 14:223-233
The 0, dynamics at the base of biofilms was studied using planar optodes Biofllms were grown directly on the optodes and the 2-dimensional distnbution of O2 at the base of biofilms was resolved at a spatial resolution of 30 X 30 pm, using a CCD camer