Publications by authors named "Constantinos Varotsis"

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Light harvesting and photoprotective states in the marine diatom sp.: functional implications of chlorophylls / in the fucoxanthin-chlorophyll /-binding proteins (FCPs).
Charalampos Andreou, Constantinos Varotsis

RSC Adv· February 2025

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Probing the Fucoxanthin-Chlorophyll /-Binding Proteins (FCPs) of the Marine Diatom sp. by Resonance Raman Spectroscopy.
Charalampos Andreou, Charalampos Tselios, Aristos Ioannou, Constantinos Varotsis

J Phys Chem B· October 2023

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Microstructure-driven annihilation effects and dispersive excited state dynamics in solid-state films of a model sensitizer for photon energy up-conversion applications.
Hossein Goudarzi, Loukas Koutsokeras, Ahmed H Balawi, Chen Sun, Giorgos K Manolis, Constantinos Varotsis

Chem Sci· February 2023

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Evidence for reversible light-dependent transitions in the photosynthetic pigments of diatoms.
Charalampos Tselios, Constantinos Varotsis

RSC Adv· November 2022

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Application of double-pulse laser-induced breakdown spectroscopy (DP-LIBS), Fourier transform infrared micro-spectroscopy and Raman microscopy for the characterization of copper-sulfides.
Constantinos Varotsis, Charalampos Tselios, Konstantinos A Yiannakkos, Charalampos Andreou, Marios Papageorgiou

RSC Adv· December 2021

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Photoreduction of carotenoids in the aerobic anoxygenic photoheterotrophs probed by real time Raman spectroscopy.
Marios Papageorgiou, Charalampos Tselios, Constantinos Varotsis

J Photochem Photobiol B· December 2020

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Probing hemoglobin glyco-products by fluorescence spectroscopy.
Aristos Ioannou, Constantinos Varotsis

RSC Adv· November 2019

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Photosensitivity responses of probed by FTIR, fluorescence and Raman microspectroscopy.
Marios Papageorgiou, Charalampos Tselios, Constantinos Varotsis

RSC Adv· August 2019

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Extracellular electron uptake from carbon-based π electron surface-donors: oxidation of graphite sheets by probed by Raman and FTIR spectroscopies.
Charalampos Tselios, Marios Papageorgiou, Constantinos Varotsis

RSC Adv· June 2019

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Discrete Ligand Binding and Electron Transfer Properties of ba-Cytochrome c Oxidase from Thermus thermophilus: Evolutionary Adaption to Low Oxygen and High Temperature Environments.
Constantinos Koutsoupakis, Tewfik Soulimane, Constantinos Varotsis

Acc Chem Res· May 2019

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Reversible temperature-dependent high- to low-spin transition in the heme Fe-Cu binuclear center of cytochrome oxidase.
Antonis Nicolaides, Tewfik Soulimane, Constantinos Varotsis

RSC Adv· February 2019

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Metal (Ag/Ti)-Containing Hydrogenated Amorphous Carbon Nanocomposite Films with Enhanced Nanoscratch Resistance: Hybrid PECVD/PVD System and Microstructural Characteristics.
Marios Constantinou, Petros Nikolaou, Loukas Koutsokeras, Apostolos Avgeropoulos, Dimitrios Moschovas, Constantinos Varotsis

Nanomaterials (Basel)· March 2018

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Modifications of hemoglobin and myoglobin by Maillard reaction products (MRPs).
Aristos Ioannou, Constantinos Varotsis

PLoS One· December 2017

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Nanosecond ligand migration and functional protein relaxation in ba3 oxidoreductase: Structures of the B0, B1 and B2 intermediate states.
Antonis Nicolaides, Tewfik Soulimane, Constantinos Varotsis

Biochim Biophys Acta· September 2016

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ns-μs Time-Resolved Step-Scan FTIR of ba₃ Oxidoreductase from Thermus thermophilus: Protonic Connectivity of w941-w946-w927.
Antonis Nicolaides, Tewfik Soulimane, Constantinos Varotsis

Int J Mol Sci· September 2016

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Probing the whole ore chalcopyrite-bacteria interactions and jarosite biosynthesis by Raman and FTIR microspectroscopies.
Anastasia Adamou, Giorgos Manos, Nicholas Messios, Lazaros Georgiou, Constantinos Xydas, Constantinos Varotsis

Bioresour Technol· August 2016

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Structure and properties of the catalytic site of nitric oxide reductase at ambient temperature.
Vangelis Daskalakis, Takehiro Ohta, Teizo Kitagawa, Constantinos Varotsis

Biochim Biophys Acta· October 2015

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Nitric oxide activation by caa3 oxidoreductase from Thermus thermophilus.
Takehiro Ohta, Tewfik Soulimane, Teizo Kitagawa, Constantinos Varotsis

Phys Chem Chem Phys· April 2015

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Photobiochemical production of carbon monoxide by Thermus thermophilus ba3 -cytochrome c oxidase.
Constantinos Koutsoupakis, Tewfik Soulimane, Constantinos Varotsis

Chemistry· March 2015

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Detection of functional hydrogen-bonded water molecules with protonated/deprotonated key carboxyl side chains in the respiratory enzyme ba3-oxidoreductase.
Antonis Nicolaides, Tewfik Soulimane, Constantinos Varotsis

Phys Chem Chem Phys· March 2015

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The protein effect in the structure of two ferryl-oxo intermediates at the same oxidation level in the heme copper binuclear center of cytochrome c oxidase.
Eftychia Pinakoulaki, Vangelis Daskalakis, Takehiro Ohta, Oliver-Matthias H Richter, Kerstin Budiman, Constantinos Varotsis

J Biol Chem· July 2013

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Spectroscopic and kinetic investigation of the fully reduced and mixed valence states of ba3-cytochrome c oxidase from Thermus thermophilus: a Fourier transform infrared (FTIR) and time-resolved step-scan FTIR study.
Constantinos Koutsoupakis, Tewfik Soulimane, Constantinos Varotsis

J Biol Chem· October 2012

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The origin of the Fe(IV)=O intermediates in cytochrome aa(3) oxidase.
Eftychia Pinakoulaki, Vangelis Daskalakis, Constantinos Varotsis

Biochim Biophys Acta· April 2012

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Probing protonation/deprotonation of tyrosine residues in cytochrome ba3 oxidase from Thermus thermophilus by time-resolved step-scan Fourier transform infrared spectroscopy.
Constantinos Koutsoupakis, Olga Kolaj-Robin, Tewfik Soulimane, Constantinos Varotsis

J Biol Chem· September 2011

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Regulation of electron and proton transfer by the protein matrix of cytochrome c oxidase.
Vangelis Daskalakis, Stavros C Farantos, Victor Guallar, Constantinos Varotsis

J Phys Chem B· April 2011

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