TY  - JOUR
A1  - Scheller, Frieder W.
A1  - Schmid, Rolf
T1  - A tribute to Isao Karube (1942-2020) and his influence on sensor science
JF  - Analytical and bioanalytical chemistry : a merger of Fresenius' journal of analytical chemistry, Analusis and Quimica analitica
KW  - Karube
KW  - Japan
KW  - biosensors
KW  - lifetime achievements
Y1  - 2020
U6  - https://doi.org/10.1007/s00216-020-02946-5
SN  - 1618-2642
SN  - 1618-2650
VL  - 412
IS  - 28
SP  - 7709
EP  - 7711
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Dey, Pradip
A1  - Adamovski, Miriam
A1  - Friebe, Simon
A1  - Badalyan, Artavazd
A1  - Mutihac, Radu-Cristian
A1  - Paulus, Florian
A1  - Leimkühler, Silke
A1  - Wollenberger, Ursula
A1  - Haag, Rainer
T1  - Dendritic polyglycerol-poly(ethylene glycol)-based polymer networks for biosensing application
JF  - ACS applied materials & interfaces
N2  - This work describes the formation of a new dendritic polyglycerol-poly(ethylene glycol)-based 3D polymer network as a matrix for immobilization of the redox enzyme periplasmatic aldehyde oxidoreductase to create an electrochemical biosensor. The novel network is built directly on the gold surface, where it simultaneously stabilizes the enzyme for up to 4 days. The prepared biosensors can be used for amperometric detection of benzaldehyde in the range of 0.8-400 mu M.
KW  - biosensors
KW  - hydrogel
KW  - amperometry
KW  - dendritic
Y1  - 2014
U6  - https://doi.org/10.1021/am502018x
SN  - 1944-8244
VL  - 6
IS  - 12
SP  - 8937
EP  - 8941
PB  - American Chemical Society
CY  - Washington
ER  - 
TY  - JOUR
A1  - Ast, Cindy
A1  - Schmälzlin, Elmar
A1  - Löhmannsröben, Hans-Gerd
A1  - van Dongen, Joost T.
T1  - Optical oxygen micro- and nanosensors for plant applications
JF  - Sensors
N2  - Pioneered by Clark's microelectrode more than half a century ago, there has been substantial interest in developing new, miniaturized optical methods to detect molecular oxygen inside cells. While extensively used for animal tissue measurements, applications of intracellular optical oxygen biosensors are still scarce in plant science. A critical aspect is the strong autofluorescence of the green plant tissue that interferes with optical signals of commonly used oxygen probes. A recently developed dual-frequency phase modulation technique can overcome this limitation, offering new perspectives for plant research. This review gives an overview on the latest optical sensing techniques and methods based on phosphorescence quenching in diverse tissues and discusses the potential pitfalls for applications in plants. The most promising oxygen sensitive probes are reviewed plus different oxygen sensing structures ranging from micro-optodes to soluble nanoparticles. Moreover, the applicability of using heterologously expressed oxygen binding proteins and fluorescent proteins to determine changes in the cellular oxygen concentration are discussed as potential non-invasive cellular oxygen reporters.
KW  - oxygen sensor
KW  - biosensors
KW  - microsensors
KW  - nanosensors
KW  - endogenous sensor proteins
KW  - dual-frequency phase-modulation
KW  - phosphorescence quenching
KW  - plant science
Y1  - 2012
U6  - https://doi.org/10.3390/s120607015
SN  - 1424-8220
VL  - 12
IS  - 6
SP  - 7015
EP  - 7032
PB  - MDPI
CY  - Basel
ER  -