The Role of the Core Attachment Positioning in Triggering Intramolecular Singlet Exciton Fission in Perylene Diimide Tetramers

2021 ◽  
Author(s):  
Angelar K. Muthike ◽  
Benedetta Carlotti ◽  
Ifeanyi K. Madu ◽  
Hanjie Jiang ◽  
Hyungjun Kim ◽  
...  
Keyword(s):  
Perylene Diimide ◽  
Singlet Exciton ◽  
The Core ◽  
Singlet Exciton Fission

scholarly journals Microscopic theory of singlet exciton fission. II. Application to pentacene dimers and the role of superexchange

2013 ◽  
Vol 138 (11) ◽  
pp. 114103 ◽  
Author(s):  
Timothy C. Berkelbach ◽  
Mark S. Hybertsen ◽  
David R. Reichman
Keyword(s):  
Microscopic Theory ◽  
Singlet Exciton ◽  
Singlet Exciton Fission

Morphology-Independent Efficient Singlet Exciton Fission in Perylene Diimide Thin Films

ChemPlusChem ◽  
2018 ◽  
Vol 83 (4) ◽  
pp. 230-238 ◽  
Author(s):  
Yaroslav V. Aulin ◽  
Kevin M. Felter ◽  
D. Deniz Günbas ◽  
Rajeev K. Dubey ◽  
Wolter F. Jager ◽  
...  
Keyword(s):  
Thin Films ◽  
Perylene Diimide ◽  
Singlet Exciton ◽  
Singlet Exciton Fission

scholarly journals Tuning the role of charge-transfer states in intramolecular singlet exciton fission through side-group engineering

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Steven Lukman ◽  
Kai Chen ◽  
Justin M. Hodgkiss ◽  
David H. P. Turban ◽  
Nicholas D. M. Hine ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Side Group ◽  
Singlet Exciton ◽  
Singlet Exciton Fission

scholarly journals Cover Feature: Morphology-Independent Efficient Singlet Exciton Fission in Perylene Diimide Thin Films (ChemPlusChem 4/2018)

ChemPlusChem ◽  
2018 ◽  
Vol 83 (4) ◽  
pp. 141-141
Author(s):  
Yaroslav V. Aulin ◽  
Kevin M. Felter ◽  
D. Deniz Günbas ◽  
Rajeev K. Dubey ◽  
Wolter F. Jager ◽  
...  
Keyword(s):  
Thin Films ◽  
Perylene Diimide ◽  
Singlet Exciton ◽  
Singlet Exciton Fission

Vibrational Coherence Reveals the Role of Dark Multiexciton States in Ultrafast Singlet Exciton Fission

2015 ◽  
pp. 226-229 ◽  
Author(s):  
Artem A. Bakulin ◽  
Sarah E. Morgan ◽  
Jan Alster ◽  
Dassia Egorova ◽  
Alex Chin ◽  
...  
Keyword(s):  
Vibrational Coherence ◽  
Singlet Exciton ◽  
Singlet Exciton Fission

scholarly journals Activating intramolecular singlet exciton fission by altering π-bridge flexibility in perylene diimide trimers for organic solar cells

2020 ◽  
Vol 11 (33) ◽  
pp. 8757-8770
Author(s):  
Benedetta Carlotti ◽  
Ifeanyi K. Madu ◽  
Hyungjun Kim ◽  
Zhengxu. Cai ◽  
Hanjie Jiang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Perylene Diimide ◽  
Intersystem Crossing ◽  
Time Resolved ◽  
Time Resolved Spectroscopy ◽  
Singlet Exciton ◽  
Singlet Exciton Fission ◽  
Triplet Formation

We show via time resolved spectroscopy that triplet formation proceeds via intersystem crossing in a rigid-bridged perylene diimide trimer and via efficient and fast intramolecular singlet exciton fission in the analogous flexible-bridged trimer.

Does a Ribosome Really Read? On the Cognitive Roots and Heuristic Value of Linguistic Metaphors in Molecular Genetics. Part 2

2020 ◽  
Vol 63 (2) ◽  
pp. 46-62
Author(s):  
Suren T. Zolyan
Keyword(s):  
Information Processing ◽  
Genetic Information ◽  
Formal Organization ◽  
Dual Nature ◽  
Reading Frame ◽  
The Core ◽  
Genetic Information Processing ◽  
Cognitive Frame ◽  
Effective Instrument

We discuss the role of linguistic metaphors as a cognitive frame for the understanding of genetic information processing. The essential similarity between language and genetic information processing has been recognized since the very beginning, and many prominent scholars have noted the possibility of considering genes and genomes as texts or languages. Most of the core terms in molecular biology are based on linguistic metaphors. The processing of genetic information is understood as some operations on text – writing, reading and editing and their specification (encoding/decoding, proofreading, transcription, translation, reading frame). The concept of gene reading can be traced from the archaic idea of the equation of Life and Nature with the Book. Thus, the genetics itself can be metaphorically represented as some operations on text (deciphering, understanding, code-breaking, transcribing, editing, etc.), which are performed by scientists. At the same time linguistic metaphors portrayed gene entities also as having the ability of reading. In the case of such “bio-reading” some essential features similar to the processes of human reading can be revealed: this is an ability to identify the biochemical sequences based on their function in an abstract system and distinguish between type and its contextual tokens of the same type. Metaphors seem to be an effective instrument for representation, as they make possible a two-dimensional description: biochemical by its experimental empirical results and textual based on the cognitive models of comprehension. In addition to their heuristic value, linguistic metaphors are based on the essential characteristics of genetic information derived from its dual nature: biochemical by its substance, textual (or quasi-textual) by its formal organization. It can be concluded that linguistic metaphors denoting biochemical objects and processes seem to be a method of description and explanation of these heterogeneous properties.

Exploring the Mechanism of Lingzhu San in Treating Febrile Seizures by Using Network Pharmacology

2020 ◽  
Vol 23 ◽  
Author(s):  
Xiao Zhou ◽  
Xiao-Fei Zhang ◽  
Dong-Yan Guo ◽  
Yan-Jun Yang ◽  
Lin Liu ◽  
...  
Keyword(s):  
Febrile Seizures ◽  
Network Pharmacology ◽  
Biological Processes ◽  
Active Compounds ◽  
Potential Core ◽  
R Language ◽  
The Core ◽  
Multiple Factors ◽  
Therapeutic Mechanism

Objective: Lingzhu San (LZS) is a traditional Chinese medicine (TCM) prescription which can be effective in treating febrile seizures (FS) and has few researches on the mechanisms. In order to better guide the clinical use of LZS, we used the research ideas and methods of network pharmacology to find the potential core compounds, targets and pathways of LZS in the complex TCM system for the treatment of FS, and predict the mechanism. Materials and Methods: Databases such as BATMAN, TCMSP, TCMID, and SWISS TARGET are used to mine the active compounds and targets of LZS, and the target information of FS was obtained through GENECARDS and OMIM. Using Venny2.1.0 and Cytoscape software to locked the potential core compounds and targets of FS. The R language and ClusterProfiler software package were adopt to enrich and analyze the KEGG and GO pathways of the core targets and the biological processes and potential mechanisms of the core targets were revealed. Results: 187 active compounds and 2113 target proteins of LZS were collected. And 38 potential core compounds, 35 core targets and 775 metabolic and functional pathways were screened which involved in mediating FS. Finally, the role of the core compounds, targets and pivotal pathways of LZS regulated FS in the pathogenesis and therapeutic mechanism of FS was discussed and clarified. Conclusions: In this paper, the multi-compounds, multi-targets and multi-pathways mechanism of LZS in the treatment of FS was preliminarily revealed through the analysis of network pharmacology data, which is consistent with the principle of multi-compounds compatibility of TCM prescriptions and unified treatment of diseases from multiple angles, and it provides a new way for TCM to treat complex diseases caused by multiple factors.

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