Photonic Crystal Surface Waves for Optical Biosensors

2007 ◽  
Vol 79 (12) ◽  
pp. 4729-4735 ◽  
Author(s):  
Valery N. Konopsky ◽  
Elena V. Alieva
Keyword(s):  
Photonic Crystal ◽  
Surface Waves ◽  
Crystal Surface ◽  
Optical Biosensors

scholarly journals The Elaboration of Effective Coatings for Photonic Crystal Chips in Optical Biosensors

Polymers ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 152
Author(s):  
Svetlana Sizova ◽  
Ruslan Shakurov ◽  
Tatiana Mitko ◽  
Fedor Shirshikov ◽  
Daria Solovyeva ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Real Time ◽  
High Performance ◽  
Crystal Surface ◽  
Optical Biosensors ◽  
Surface Mode ◽  
Molecular Weights ◽  
Optical Modes ◽  
Propagation Parameters ◽  
Epoxy Groups

Here, we propose and study several types of quartz surface coatings designed for the high-performance sorption of biomolecules and their subsequent detection by a photonic crystal surface mode (PC SM) biosensor. The deposition and sorption of biomolecules are revealed by analyzing changes in the propagation parameters of optical modes on the surface of a photonic crystal (PC). The method makes it possible to measure molecular and cellular affinity interactions in real time by independently recording the values of the angle of total internal reflection and the angle of excitation of the surface wave on the surface of the PC. A series of dextrans with various anchor groups (aldehyde, carboxy, epoxy) suitable for binding with bioligands have been studied. We have carried out comparative experiments with dextrans with other molecular weights. The results confirmed that dextran with a Mw of 500 kDa and anchor epoxy groups have a promising potential as a matrix for the detection of proteins in optical biosensors. The proposed approach would make it possible to enhance the sensitivity of the PC SM biosensor and also permit studying the binding process of low molecular weight molecules in real time.

Size-dependent hydrogen uptake behavior of Pd nanoparticles revealed by photonic crystal surface waves

2012 ◽  
Vol 100 (8) ◽  
pp. 083108 ◽  
Author(s):  
Valery N. Konopsky ◽  
Dmitry V. Basmanov ◽  
Elena V. Alieva ◽  
Sergey K. Sekatskii ◽  
Giovanni Dietler
Keyword(s):  
Photonic Crystal ◽  
Surface Waves ◽  
Crystal Surface ◽  
Pd Nanoparticles ◽  
Hydrogen Uptake ◽  
Size Dependent
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