Petrovszki Dániel, Valkai Sándor, Kelemen Lóránd, Nagy László, Agarwal Vivechana, Krekic Szilvia, Zimányi László, Dér András
Institute of Biophysics, Biological Research Centre, Eötvös Loránd Research Network, 6726 Szeged, Hungary.
Doctoral School of Multidisciplinary Medical Science, University of Szeged, 6720 Szeged, Hungary.
Nanomaterials (Basel). 2023 Jul 14;13(14):2070. doi: 10.3390/nano13142070.
We successfully created a composite photonic structure out of porous silicon (PSi) microcavities doped by the photochromic protein, photoactive yellow protein (PYP). Massive incorporation of the protein molecules into the pores was substantiated by a 30 nm shift of the resonance dip upon functionalization, and light-induced reflectance changes of the device due to the protein photocycle were recorded. Model calculations for the photonic properties of the device were consistent with earlier results on the nonlinear optical properties of the protein, whose degree of incorporation into the PSi structure was also estimated. The successful proof-of-concept results are discussed in light of possible practical applications in the future.
我们成功地利用光致变色蛋白——光活性黄色蛋白（PYP）掺杂的多孔硅（PSi）微腔创建了一种复合光子结构。功能化后共振峰位发生30纳米的偏移，证实了蛋白质分子大量掺入到孔隙中，并且记录了由于蛋白质光循环导致的器件光诱导反射率变化。该器件光子特性的模型计算结果与该蛋白质非线性光学特性的早期研究结果一致，同时还估算了其掺入PSi结构的程度。结合未来可能的实际应用对这一成功的概念验证结果进行了讨论。
