Publications by authors named "Magdalena Lazicka"
The combination of trimeric form of the light-harvesting complex II (LHCII), a porous graphite electrode (GE), and the application of phenyl-p-benzoquinone (PPBQ), the quinone derivative, allow the construction of a new type of biohybrid photoactive system. The Chl fluorescence decay and voltammetric analyzes revealed that PPBQ impacts LHCII proportionally to accessible quenching sites and that PPBQ forms redox complexes with Chl in both ground and excited states. As a result, photocurrent generation is directly dependent on PPBQ-induced quenching of Chl fluorescence.
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- Quantum dots (QDs), useful as fluorescent labels, face challenges in bioscience applications due to surface instability and hydrophobicity.
- This study compared two protein types - Pumilio homology domain (Puf) and leucine-rich repeat (LRR) - as potential covers for spherical QDs made of cadmium selenide, ultimately finding Puf to be more effective.
- The research demonstrated that the Puf protein maintains its structure and does not lead to harmful reactive oxygen species when in contact with QDs, marking progress in developing a stable, biocompatible QD cover.
Light-dependent electrochemical properties of the light harvesting complexes of Photosystem II (LHCII) and the corresponding interactions with screen-printed graphite electrodes (GEs) are determined. No exogenous soluble redox mediators are used. LHCII isolated from spinach leaves are immobilized on GE by physical adsorption and through interactions with glutaraldehyde.
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