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2163. Unconventional visions of nature and the self2020, radijska ali televizijska oddaja, podkast, intervju, novinarska konferenca Ključne besede: body, biotechnology, nature, bioethics, biomaterial, cultured meat, future food
Objavljeno v RUNG: 29.01.2021; Ogledov: 2229; Prenosov: 25
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2164. Hypnosis or curriculum for a more humanistic space exploration2020, radijska ali televizijska oddaja, podkast, intervju, novinarska konferenca Ključne besede: planetary art, poetics, humanities, curriculum, universe humanism, transhumanism, cosmism
Objavljeno v RUNG: 29.01.2021; Ogledov: 2193; Prenosov: 19
Povezava na celotno besedilo |
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2168. Simultaneous ternary extension of DNA catalyzed by a trimeric replicase assembled in vivoAlejandro Montón Silva, Fabio Lapenta, Alessandra Stefan, Fabrizio Dal Piaz, Alessandro Ceccarelli, Alessandro Perrone, Alejandro Hochkoeppler, 2015, izvirni znanstveni članek Opis: According to current models, dimeric DNA Polymerases coordinate the replication of DNA leading and lagging strands. However, it was recently shown that trimeric DNA Polymerases, assembled in vitro, replicate the lagging strand more efficiently than dimeric replicases. Here we show that the τ, α, ε, and θ subunits of Escherichia coli DNA Polymerase III can be assembled in vivo, yielding the trimeric τ3α3ε3θ3 complex. Further, we propose a molecular model of this complex, whose catalytic action was investigated using model DNA substrates. Our observations indicate that trimeric DNA replicases reduce the gap between leading and lagging strand synthesis.
Ključne besede: Trimeric DNA Polymerase, E. coli, DNA Polymerase III, τ3α3ε3θ3 complex, Triple DNA extension
Objavljeno v RUNG: 27.01.2021; Ogledov: 1994; Prenosov: 0
Gradivo ima več datotek! Več... |
2169. A pyrrolopyridazinedione-based copolymer for fullerene-free organic solar cellsAstrid-Caroline Knall, Samuel Rabensteiner, Sebastian F. Hoefler, Matiss Reinfelds, Mathias Hobisch, Heike M. A. Ehmann, Nadiia Pastukhova, Egon Pavlica, Gvido Bratina, Illie Hanzu, Shuguang Wen, Renqiang Yang, Gregor Trimmel, Thomas Rath, 2021, izvirni znanstveni članek Opis: The recent success of non-fullerene acceptors in organic photovoltaics also entails a change in the requirements to the polymer donor in terms of optical and morphological properties leading to a demand for novel conjugated polymers. Herein, we report on the synthesis of a 1,4-bis-(thiophene-2-yl)-pyrrolopyridazinedione based copolymer with 2-ethylhexyl substituents on the pyrrolopyridazinedione moiety. A 2D conjugated benzodithiophene (BDT) was chosen as comonomer. The resulting copolymer T-EHPPD-T-EHBDT showed a molecular weight of 10.2 kDa, an optical band gap of 1.79 eV, a hole mobility of 1.8 × 10−4 cm2 V−1 s−1 and a preferred face-on orientation with regard to the substrate. The comparably wide band gap as well as the determined energy levels (HOMO: −5.47 eV, LUMO: −3.68 eV) match well with the narrow band gap non-fullerene acceptor ITIC-F, which was used as the acceptor phase in the bulk heterojunction absorber layers in the investigated solar cells. The solar cells, prepared in inverted architecture, revealed power conversion efficiencies up to 7.4% using a donor:acceptor ratio of 1 : 1 in the absorber layer.
Ključne besede: non-fullerene solar cells, charge transport, charge mobility, power conversion efficiency
Objavljeno v RUNG: 27.01.2021; Ogledov: 2591; Prenosov: 0
Gradivo ima več datotek! Več... |
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