Zobrazeno 1 - 10
of 79
pro vyhledávání: '"Michael Schäferling"'
Autor:
Michael Schäferling, Vladimir Ondrus
Publikováno v:
Chemosensors, Vol 12, Iss 3, p 31 (2024)
Imaging methods by the means of optical sensors are applied in diverse scientific areas such as medical research and diagnostics, aerodynamics, environmental analysis, or marine research. After a general introduction to the field, this review is focu
Externí odkaz:
https://doaj.org/article/1f7a9240e02e4704b7c16c8545717d79
Autor:
Michael Schäferling
Publikováno v:
From Magnetic to Bioactive Materials ISBN: 9783110733471
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e095ecc471a02aa82b79221282dac3ff
https://doi.org/10.1515/9783110733471-003
https://doi.org/10.1515/9783110733471-003
Publikováno v:
ChemNanoMat. 7:174-183
Lanthanide-doped NaYF4 upconversion nano- and microcrystals were synthesized via a facile solvothermal approach. Thereby, the influence of volume ratios of ethylene glycol (EG)/H2O, molar ratios of NH4F/RE3+ (RE3+ represents the total amount of Y3+ a
Autor:
David Zimmek, Michael Schäferling, Matthias Bartholmai, Christoph Strangfeld, Juergen Bartelmess
Publikováno v:
The Analyst. 145(6)
In this communication a novel concept for pH sensing is introduced which is specifically adapted to monitor carbonation induced corrosion in concrete structures. The method is based on a ratiometric measurement principle, exploiting the pH sensitive
Publikováno v:
ChemistrySelect. 3(44):12430-12439
Publikováno v:
ChemPhysChem. 18:692-701
The luminescence intensity ratio (LIR) of the green emissions of the near-infrared excited NaYF4 :Yb3+ ,Er3+ nanocrystals is a promising method for temperature sensing. Here, the influence of excitation power density, excitation pulse length, excitat
Autor:
Elnaz Fazeli, Michael Schäferling, Tuomas Näreoja, Niina Perälä, Riikka Peltomaa, Jessica M. Rosenholm, Riikka Arppe, Simon Christ, Neeraj Prabhakar, Takahiro Deguchi, Tero Soukka
Publikováno v:
Analytical Chemistry. 89(3):1501-1508
Measurement of changes of pH at various intracellular compartments has potential to solve questions concerning the processing of endocytosed material, regulation of the acidification process, and also acidification of vesicles destined for exocytosis
Publikováno v:
Journal of Physical Chemistry B. 121(12):6924-6929
The mechanism for red upconversion luminescence of Yb–Er codoped materials is not generally agreed on in the literature. Both two-photon and three-photon processes have been suggested as the main path for red upconversion emission. We have studied
Publikováno v:
Langmuir : the ACS journal of surfaces and colloids. 35(15)
An emerging class of inorganic optical reporters are near-infrared (NIR) excitable lanthanide-based upconversion nanoparticles (UCNPs) with multicolor emission and long luminescence lifetimes in the range of several hundred microseconds. For the desi
Autor:
Xu-dong Wang, Stephan Schreml, Robert J. Meier, Michael Schäferling, Carina Schmittlein, Otto S. Wolfbeis
Publikováno v:
Sensors and Actuators B: Chemical. 221:37-44
We report on the use of a sprayable and thermogelating biomaterial (Poloxamer™; a.k.a. Pluronic™) in optical imaging of pH values, local oxygen and temperature. The material is highly biocompatible and easy to handle. We also show that the materi