Label-Free Parallel Screening of Combinatorial Triazine Libraries Using Reflectometric Interference Spectroscopy

2002 ◽  
Vol 74 (4) ◽  
pp. 834-840 ◽  
Author(s):  
Oliver Birkert ◽  
Rolf Tünnemann ◽  
Günther Jung ◽  
Günter Gauglitz
2012 ◽  
Vol 728 ◽  
pp. 64-68 ◽  
Author(s):  
Hyung Woo Choi ◽  
Yasuhiko Sakata ◽  
Yoshikazu Kurihara ◽  
Tooru Ooya ◽  
Toshifumi Takeuchi

2005 ◽  
Vol 382 (8) ◽  
pp. 1889-1894 ◽  
Author(s):  
Florian Pröll ◽  
Bernd Möhrle ◽  
Michael Kumpf ◽  
Günter Gauglitz

2019 ◽  
Author(s):  
Christopher Heuer ◽  
Heidi Leonard ◽  
Nadav Nitzan ◽  
Ariella Lavy-Alperovitch ◽  
Naama Massad-Ivanir ◽  
...  

AbstractThe increasing number of invasive fungal infections among immunocompromised patients and the emergence of antifungal resistant pathogens has resulted in the need for rapid and reliable antifungal susceptibility testing (AFST). Accelerating antifungal susceptibility testing allows for advanced treatment decisions and the reduction in future instances of antifungal resistance. In this work, we demonstrate the application of a silicon phase grating as sensor for the detection of growth of Aspergillus niger (A. niger) by intensity-based reflectometric interference spectroscopy and its use as an antifungal susceptibility test. The silicon gratings provide a solid-liquid interface to capture micron-sized Aspergillus conidia within microwell arrays. Fungal growth is optically tracked and detected by the reduction in the intensity of reflected light from the silicon grating. The growth of A. niger in the presence of various concentrations of the antifungal agents voriconazole and amphotericin B is investigated by intensity-based reflectometric interference spectroscopy and used for the determination of the minimal inhibitory concentrations (MIC), which are compared to standard broth microdilution testing. This assay allows for expedited detection of fungal growth and provides a label-free alternative to standard antifungal susceptibility testing methods, such as broth microdilution and agar diffusion methods.


2005 ◽  
Vol 384 (2) ◽  
pp. 407-413 ◽  
Author(s):  
Bernd P. Möhrle ◽  
Karsten Köhler ◽  
Jan Jaehrling ◽  
Roland Brock ◽  
Günter Gauglitz

2012 ◽  
Vol 20 (21) ◽  
pp. 23162 ◽  
Author(s):  
Daniel Patko ◽  
Kaspar Cottier ◽  
Andras Hamori ◽  
Robert Horvath

2021 ◽  
Author(s):  
Rıdvan Say ◽  
Almila Şenat ◽  
Özlem Biçen Ünlüer ◽  
Fahrettin Akyüz ◽  
Arzu Ersöz

Abstract In this study, it has aimed to understand the relationship between purified insulin and insulin receptor, also nanoinsulin and insulin receptors. The insulin receptor has separated from rat liver using a cryogel column material that is photosensitively insulin cross-linked in the Fast Protein Liquid Chromatography (FPLC) system based on the affinity between insulin and insulin receptor. In the second step, an isolated insulin receptor has used to synthesize insulin receptor cross-linked cryogels for purifying insulin from rats. Subcutaneously delivered nano-insulin drug has prepared from the purified insulin using AmiNoAcid (monomer) Decorated and Light Underpinning Conjugation Approach (ANADOLUCA) method. Lastly, Reflectometric Interference Spectroscopy (RIfS) study has performed to understand the interaction between purified insulin receptor and purified insulin, commercial insulin analog, and nano insulin. These studies have demonstrated that nano-insulin drugs can be effectively used as a theranostic platform to monitor affinity and blocking interactions of nanoprotein drug and its receptor.


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