Results 41 to 50 of about 1,343,962 (291)

Charge separation and (triplet) recombination in diketopyrrolopyrrole–fullerene triads [PDF]

open access: yesPhotochemical & Photobiological Sciences, 2010
Synthesis and photophysics of two diketopyrrolopyrrole-based small band gap oligomers, end-capped at both ends with C(60) are presented. Upon photoexcitation of the oligomer, ultrafast energy transfer to the fullerene occurs ( approximately 0.5 ps), followed by an electron transfer reaction.
Karsten, B.P.   +4 more
openaire   +6 more sources

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

The effect of hole transporting layer in charge accumulation properties of p-i-n perovskite solar cells

open access: yesAPL Materials, 2017
The charge accumulation properties of p-i-n perovskite solar cells were investigated using three representative organic and inorganic hole transporting layer (HTL): (a) Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT ...
Fedros Galatopoulos   +3 more
doaj   +1 more source

Oxidation of P700 Induces Alternative Electron Flow in Photosystem I in Wheat Leaves

open access: yesPlants, 2019
Oxygen (O2)-evolving photosynthetic organisms oxidize the reaction center chlorophyll, P700, in photosystem I (PSI) to suppress the production of reactive oxygen species.
Kanae Kadota   +5 more
doaj   +1 more source

Discerning protein pools by selective staining with self‐labeling tags

open access: yesFEBS Letters, EarlyView.
Cell surface proteins have an intra‐ and extracellular pool. Combining genetic fusion to self‐labeling tags that can be addressed with small molecule fluorophores allows separating these pools. We highlight recent developments and techniques for state‐of‐the‐art interrogation of cell surface proteins in the complex tissue setting.
Kati Fischermanns, Johannes Broichhagen
wiley   +1 more source

Spectroscopic Investigation of Excited-State Dynamics in Organic Photovoltaic Materials

open access: yesIndonesian Journal of Chemical Research
This study aims to investigate the excited-state dynamics governing charge generation and recombination processes in organic photovoltaic (OPV) materials to better understand their efficiency-limiting mechanisms.
Soni Prayogi
doaj   +1 more source

Is it common for charge recombination to be faster than charge separation?

open access: yesInternational Journal of Chemical Kinetics, 2019
AbstractAttaining long‐lived charge‐transfer (CT) states is of the utmost importance for energy science, photocatalysis, and materials engineering. When charge separation (CS) is slower than consequent charge recombination (CR), formation of a CT state is not apparent, yet the CT process provides parallel pathways for deactivation of electronically ...
Eli M. Espinoza   +4 more
openaire   +2 more sources

Ultrafast Charge Recombination in a Photoexcited Mott-Hubbard Insulator [PDF]

open access: yesPhysical Review Letters, 2013
4 pages, 6 ...
Lenarčič, Zala, Prelovšek, Peter
openaire   +3 more sources

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

open access: yesFEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt   +8 more
wiley   +1 more source

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