Infrared difference spectroscopy of proteins: from bands to bonds

VA Lorenz-Fonfria - Chemical reviews, 2020 - ACS Publications
Infrared difference spectroscopy probes vibrational changes of proteins upon their
perturbation. Compared with other spectroscopic methods, it stands out by its sensitivity to …

Antibacterial activity of the green synthesized plasmonic silver nanoparticles with crystalline structure against gram-positive and gram-negative bacteria

H Hassan Afandy, DK Sabir, SB Aziz - Nanomaterials, 2023 - mdpi.com
Nanoparticles (NPs) have attracted considerable interest in numerous fields, including
agriculture, medicine, the environment, and engineering. The use of green synthesis …

Rapid determination of chlorophyll and pheophytin in green tea using fourier transform infrared spectroscopy

X Li, R Zhou, K Xu, J Xu, J Jin, H Fang, Y He - Molecules, 2018 - mdpi.com
The chlorophyll, pheophytin, and their proportions are critical factors to evaluate the sensory
quality of green tea. This research aims to establish an effective method to determine the …

[HTML][HTML] Vibrational spectroscopy of photosystem I

G Hastings - Biochimica et Biophysica Acta (BBA)-Bioenergetics, 2015 - Elsevier
Fourier transform infrared difference spectroscopy (FTIR DS) has been widely used to study
the structural details of electron transfer cofactors (and their binding sites) in many types of …

Assignment of the Qy Absorption Spectrum of Photosystem-I from Thermosynechococcus elongatus Based on CAM-B3LYP Calculations at the PW91-Optimized …

S Yin, MG Dahlbom, PJ Canfield, NS Hush… - The Journal of …, 2007 - ACS Publications
The Q y absorption spectrum of Photosystem-I from Thermosynecochoccus elongatus
(formerly Synecochoccus elongatus) is calculated using the CAM-B3LYP density functional …

[HTML][HTML] Quinones in the A1 binding site in photosystem I studied using time-resolved FTIR difference spectroscopy

H Makita, L Rohani, N Zhao, G Hastings - Biochimica et Biophysica Acta …, 2017 - Elsevier
Time-resolved step-scan FTIR difference spectroscopy at low temperature (77 K) has been
used to study photosystem I particles with phylloquinone (2-methyl-3-phytyl-1, 4 …

The directionality of electron transport in photosystem I

K Redding, A van der Est - Photosystem I: The Light-Driven Plastocyanin …, 2006 - Springer
Photosynthetic reaction centers are the membrane–protein complexes responsible for the
capture and storage of light energy in photosynthetic organisms. These proteins contain a …

Experimental and calculated infrared spectra of disubstituted naphthoquinones

N Agarwala, L Rohani, G Hastings - Spectrochimica Acta Part A: Molecular …, 2022 - Elsevier
In recent years there has been interest in incorporating substituted 1, 4-naphthoquinones
(NQs) into the A 1 binding site in photosystem I (PSI) photosynthetic protein complexes. This …

Fourier transform visible and infrared difference spectroscopy for the study of P700 in photosystem I from Fischerella thermalis PCC 7521 cells grown under white light …

G Hastings, H Makita, N Agarwala, L Rohani… - … et Biophysica Acta (BBA …, 2019 - Elsevier
Abstract (P700+–P700) Fourier transform visible and infrared difference spectra (DS) have
been obtained using photosystem I (PSI) complexes isolated from cells of Fischerella …

Reversible inhibition and reactivation of electron transfer in photosystem I

N Agarwala, H Makita, L Luo, W Xu… - Photosynthesis Research, 2020 - Springer
In photosystem I (PSI) complexes at room temperature electron transfer from A 1–to FX is an
order of magnitude faster on the B-branch compared to the A-branch. One factor that might …