TY  - JOUR
A1  - Tippkötter, Nils
A1  - Stückmann, Henning
A1  - Kroll, Stephen
A1  - Winkelmann, Gunda
A1  - Noack, Udo
A1  - Scheper, Thomas
A1  - Ulber, Roland
T1  - A semi-quantitative dipstick assay for microcystin
JF  - Analytical and Bioanalytical Chemistry
N2  - An immunochromatographic lateral flow dipstick assay for the fast detection of microcystin-LR was developed. Colloid gold particles with diameters of 40 nm were used as red-colored antibody labels for the visual detection of the antigen. The new dipstick sensor is capable of detecting down to 5 µg·l−1 (ppb; total inversion of the color signal) or 1 ppb (observation of color grading) of microcystin-LR. The course of the labeling reaction was observed via spectrometric wave shifts caused by the change of particle size during the binding of antibodies. Different stabilizing reagents showed that especially bovine serum albumin (BSA) and casein increase the assays sensitivity and the conjugate stability. Performance of the dipsticks was quantified by pattern processing of capture zone CCD images. Storage stability of dipsticks and conjugate suspensions over 115 days under different conditions were monitored. The ready-to-use dipsticks were successfully tested with microcystin-LR-spiked samples of outdoor drinking- and salt water and applied to the tissue of microcystin-fed mussels.
Y1  - 2009
U6  - http://dx.doi.org/10.1007/s00216-009-2750-8
SN  - 1618-2650
VL  - 394
IS  - 3
SP  - 863
EP  - 869
PB  - springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Ulber, Roland
A1  - Tippkötter, Nils
T1  - Nitratfreie Molke
JF  - Rundschau für Fleischhygiene und Lebensmittelüberwachung
Y1  - 2009
IS  - 4
SP  - 150
EP  - 152
ER  - 
TY  - CHAP
A1  - Engel, M.
A1  - Thieringer, J.
A1  - Tippkötter, Nils
T1  - Microbial electrosynthesis for sustainable biobutanol production
T2  - New frontiers of biotech-processes (Himmelfahrtstagung) : 02-04 May 2016, Rhein-Mosel-Halle, Koblenz/Germany
Y1  - 2016
SP  - 77
EP  - 78
PB  - DECHEMA
CY  - Frankfurt am Main
ER  - 
TY  - CHAP
A1  - Hering, T.
A1  - Ulber, Roland
A1  - Tippkötter, Nils
T1  - Development of a screening system for antimicrobial surfaces
T2  - New frontiers of biotech-processes (Himmelfahrtstagung) : 02-04 May 2016, Rhein-Mosel-Halle, Koblenz/Germany
Y1  - 2016
SP  - 129
PB  - DECHEMA
CY  - Frankfurt am Main
ER  - 
TY  - CHAP
A1  - Roth, J.
A1  - Möhring, S.
A1  - Tippkötter, Nils
T1  - Characterization and evaluation of lignocellulosic biomass 130 hydrolysates for ABE fermentation
T2  - New frontiers of biotech-processes (Himmelfahrtstagung) : 02-04 May 2016, Rhein-Mosel-Halle, Koblenz/Germany
Y1  - 2016
SP  - 130
PB  - DECHEMA
CY  - Frankfurt am Main
ER  - 
TY  - CHAP
A1  - Möhring, S.
A1  - Wulfhorst, H.
A1  - Roth, J.
A1  - Tippkötter, Nils
T1  - Pretreatment strategies for lignocellulosic biomass
T2  - New frontiers of biotech-processes (Himmelfahrtstagung) : 02-04 May 2016, Rhein-Mosel-Halle, Koblenz/Germany
Y1  - 2016
SP  - 131
PB  - DECHEMA
CY  - Frankfurt am Main
ER  - 
TY  - CHAP
A1  - Capitain, C.
A1  - Hering, T.
A1  - Tippkötter, Nils
A1  - Ulber, R.
T1  - Enzymatic polymerization of lignin model compounds and solubilized lignin in an aqueous ethanol extract
T2  - New frontiers of biotech-processes (Himmelfahrtstagung) : 02-04 May 2016, Rhein-Mosel-Halle, Koblenz/Germany
Y1  - 2016
SP  - 151
EP  - 152
PB  - DECHEMA
CY  - Frankfurt am Main
ER  - 
TY  - CHAP
A1  - Wulfhorst, H.
A1  - Duwe, A.
A1  - Möhring, S.
A1  - Jurca, O.
A1  - Tippkötter, Nils
T1  - Analysis of pretreated biomass by differential scanning 132 calorimetry and multivariate data analysis
T2  - New frontiers of biotech-processes (Himmelfahrtstagung) : 02-04 May 2016, Rhein-Mosel-Halle, Koblenz/Germany
Y1  - 2016
SP  - 132
PB  - DECHEMA
CY  - Frankfurt am Main
ER  - 
TY  - CHAP
A1  - Deterding, A.
A1  - Tippkötter, Nils
A1  - Ulber, R.
ED  - Beckmann, Dieter
T1  - Online-Essigsäureanalytik in Fermentationsbrühen mittels Fließdiffusionstechnik (FDT)
T2  - Technische Systeme für Biotechnologie und Umwelt : 13. Heiligenstädter Kolloquium, Heilbad Heiligenstadt, 25.09. - 27.09.2006
Y1  - 2006
SN  - 978-3-00-018621-9
SP  - 273
EP  - 280
CY  - Heiligenstadt
ER  - 
TY  - CHAP
A1  - Tippkötter, Nils
A1  - Schünemann, V.
A1  - Christmann, R.
A1  - Pasteur, A.
A1  - Schweizer, J.
A1  - Ulber, R.
ED  - Beckmann, Dieter
T1  - Bioaffinity Layering magnetisierbarer Mikro- und Nanopartikel
T2  - Technische Systeme für die Lebenswissenschaften : 14. Heiligenstädter Kolloquium, Heilbad Heiligenstadt, 22.09. - 24.09.2008
Y1  - 2008
SN  - 978-3-00-025695-0
SP  - 97
EP  - 98
CY  - Heiligenstadt
ER  -