Faraday Discussions最新文献

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Astrochemistry at high resolution: preface 高分辨率天体化学:前言
IF 3.4 3区 化学
Faraday Discussions Pub Date : 2023-08-29 DOI: 10.1039/D3FD90035E
Martin R. S. McCoustra
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引用次数: 0
List of participants 参会人员名单
IF 3.4 3区 化学
Faraday Discussions Pub Date : 2023-08-04
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引用次数: 0
Poster list 海报列表
IF 3.4 3区 化学
Faraday Discussions Pub Date : 2023-08-04
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引用次数: 0
Logic gating of low-abundance molecules using polyelectrolyte-based diodes† 使用基于聚电解质的二极管对低丰度分子进行逻辑门控。
IF 3.4 3区 化学
Faraday Discussions Pub Date : 2023-08-02 DOI: 10.1039/D3FD00061C
Barak Sabbagh, Zhenyu Zhang and Gilad Yossifon
{"title":"Logic gating of low-abundance molecules using polyelectrolyte-based diodes†","authors":"Barak Sabbagh, Zhenyu Zhang and Gilad Yossifon","doi":"10.1039/D3FD00061C","DOIUrl":"10.1039/D3FD00061C","url":null,"abstract":"<p >Bioinspired artificial ionic components are extensively utilized to mimic biological systems, as the vast majority of biological signaling is mediated by ions and molecules. Particular attention is given to nanoscale fluidic components where the ion transport can be regulated by the induced ion permselectivity. As a step from fundamentals toward ion-controlled devices, this study presents the use of ionic diodes made of oppositely charged polyelectrolytes, as a gate for low-abundance molecules. The use of ionic diodes that exhibited nonlinear current–voltage responses enabled realization of a basic Boolean operation of an ionic OR logic gate. Aside from the electrical response, the asymmetric ion transport through the diode was shown to affect the transport of low-abundance molecules across the diode, only allowing crossing when the diode was forward-biased. Integration of multiple diodes enabled implementation of an OR logic operation on both the voltage and the molecule transport, while obtaining electrical and optical output readouts that were associated with low and high logic levels. Similarly to electronics, implementation of logic gates opens up new functionalities of on-chip ionic computation <em>via</em> integrated circuits consisting of multiple basic logic gates.</p>","PeriodicalId":76,"journal":{"name":"Faraday Discussions","volume":"246 ","pages":" 141-156"},"PeriodicalIF":3.4,"publicationDate":"2023-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2023/fd/d3fd00061c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10018527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chemical conditions on Hycean worlds† 海洋世界的化学条件†
IF 3.4 3区 化学
Faraday Discussions Pub Date : 2023-08-02 DOI: 10.1039/D3FD00075C
Nikku Madhusudhan, Julianne I. Moses, Frances Rigby and Edouard Barrier
{"title":"Chemical conditions on Hycean worlds†","authors":"Nikku Madhusudhan, Julianne I. Moses, Frances Rigby and Edouard Barrier","doi":"10.1039/D3FD00075C","DOIUrl":"https://doi.org/10.1039/D3FD00075C","url":null,"abstract":"<p >Traditionally, the search for life on exoplanets has been predominantly focused on rocky exoplanets. The recently proposed Hycean worlds have the potential to significantly expand and accelerate the search for life elsewhere. Hycean worlds are a class of habitable sub-Neptunes with planet-wide oceans and H<small><sub>2</sub></small>-rich atmospheres. Their broad range of possible sizes and temperatures lead to a wide habitable zone and high potential for discovery and atmospheric characterization using transit spectroscopy. Over a dozen candidate Hycean planets are already known to be transiting nearby M dwarfs, making them promising targets for atmospheric characterization with the James Webb Space Telescope (JWST). In this work, we investigate possible chemical conditions on a canonical Hycean world, focusing on (a) the present and primordial molecular composition of the atmosphere, and (b) the inventory of bioessential elements for the origin and sustenance of life in the ocean. Based on photochemical and kinetic modeling for a range of conditions, we discuss the possible chemical evolution and observable present-day composition of its atmosphere. In particular, for reduced primordial conditions the early atmospheric evolution passes through a phase that is rich in organic molecules that could provide important feedstock for prebiotic chemistry. We investigate avenues for delivering bioessential metals to the ocean, considering the challenging lack of weathering from a rocky surface and the ocean separated from the rocky core by a thick icy mantle. Based on ocean depths from internal structure modelling and elemental estimates for the early Earth's oceans, we estimate the requirements for bioessential metals in such a planet. We find that the requirements can be met for plausible assumptions about impact history and atmospheric sedimentation, and supplemented by other steady state sources. We discuss the observational prospects for atmospheric characterisation of Hycean worlds with JWST and future directions of this new paradigm in the search for life on exoplanets.</p>","PeriodicalId":76,"journal":{"name":"Faraday Discussions","volume":"245 ","pages":" 80-111"},"PeriodicalIF":3.4,"publicationDate":"2023-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2023/fd/d3fd00075c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24849658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Make – underpinning concepts of the synthesis of systems where non-covalent interactions are important: general discussion 非共价相互作用重要的系统合成的基础概念:一般性讨论
IF 3.4 3区 化学
Faraday Discussions Pub Date : 2023-07-24 DOI: 10.1039/D3FD90012F
Torsten Beweries, Michael R. Buchmeiser, Frances E. Bugden, Neil R. Champness, Basheer Chanbasha, Miquel Costas, Jorge Echeverria, Odile Eisenstein, Calum Ferguson, Joe C. Goodall, Rafael Gramage-Doria, Mark Greenhalgh, Matthew Gyton, Rens Ham, Pierre Kennepohl, Bartosz Lewandowski, Wei-Chun Liu, Stuart A. Macgregor, Kamran T. Mahmudov, Eva Meeus, Josh Morris, Pinkie Ntola, Tatjana N. Parac-Vogt, Robin N. Perutz, Albert Poater, David Powers, Paul R. Raithby, Joost N. H. Reek, Imogen Riddell, Thomas R. Ward, Andrew S. Weller and Helma Wennemers
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引用次数: 0
Concluding remarks: Iontronics, from fundamentals to ion-controlled devices – Random access memories 结束语:离子电子学,从基础到离子控制器件——随机存取存储器
IF 3.4 3区 化学
Faraday Discussions Pub Date : 2023-07-24 DOI: 10.1039/D3FD00138E
Lydéric Bocquet
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引用次数: 0
Model – state-of-the-art modelling and computational analysis of reactive sites: general discussion 模型-最先进的模型和反应部位的计算分析:一般讨论
IF 3.4 3区 化学
Faraday Discussions Pub Date : 2023-07-21 DOI: 10.1039/D3FD90015K
Basheer Chanbasha, Miquel Costas, Jorge Echeverría, Odile Eisenstein, Mark Greenhalgh, Pierre Kennepohl, Adam Kirrander, Pim R. Linnebank, Stuart A. Macgregor, Kamran T. Mahmudov, Carlos Martín-Fernández, Eva Meeus, Josh Morris, Robin N. Perutz, Albert Poater, Joost N. H. Reek, Ian Rouse, Dean Toste, Cristina Trujillo, Thomas R. Ward, Julia A. Weinstein and Andrew S. Weller
{"title":"Model – state-of-the-art modelling and computational analysis of reactive sites: general discussion","authors":"Basheer Chanbasha, Miquel Costas, Jorge Echeverría, Odile Eisenstein, Mark Greenhalgh, Pierre Kennepohl, Adam Kirrander, Pim R. Linnebank, Stuart A. Macgregor, Kamran T. Mahmudov, Carlos Martín-Fernández, Eva Meeus, Josh Morris, Robin N. Perutz, Albert Poater, Joost N. H. Reek, Ian Rouse, Dean Toste, Cristina Trujillo, Thomas R. Ward, Julia A. Weinstein and Andrew S. Weller","doi":"10.1039/D3FD90015K","DOIUrl":"https://doi.org/10.1039/D3FD90015K","url":null,"abstract":"","PeriodicalId":76,"journal":{"name":"Faraday Discussions","volume":"244 ","pages":" 336-355"},"PeriodicalIF":3.4,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"3694288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Poster list 海报列表
IF 3.4 3区 化学
Faraday Discussions Pub Date : 2023-07-18
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引用次数: 0
The chemical inventory of the inner regions of planet-forming disks – the JWST/MINDS program† 行星形成盘内部区域的化学库存- JWST/MINDS程序†
IF 3.4 3区 化学
Faraday Discussions Pub Date : 2023-07-18 DOI: 10.1039/D3FD00013C
Inga Kamp, Thomas Henning, Aditya M. Arabhavi, Giulio Bettoni, Valentin Christiaens, Danny Gasman, Sierra L. Grant, Maria Morales-Calderón, Benoît Tabone, Alain Abergel, Olivier Absil, Ioannis Argyriou, David Barrado, Anthony Boccaletti, Jeroen Bouwman, Alessio Caratti o Garatti, Ewine F. van Dishoeck, Vincent Geers, Adrian M. Glauser, Manuel Güdel, Rodrigo Guadarrama, Hyerin Jang, Jayatee Kanwar, Pierre-Olivier Lagage, Fred Lahuis, Michael Mueller, Cyrine Nehmé, Göran Olofsson, Eric Pantin, Nicole Pawellek, Giulia Perotti, Tom P. Ray, Donna Rodgers-Lee, Matthias Samland, Silvia Scheithauer, Jürgen Schreiber, Kamber Schwarz, Milou Temmink, Bart Vandenbussche, Marissa Vlasblom, Christoffel Waelkens, L. B. F. M. Waters and Gillian Wright
{"title":"The chemical inventory of the inner regions of planet-forming disks – the JWST/MINDS program†","authors":"Inga Kamp, Thomas Henning, Aditya M. Arabhavi, Giulio Bettoni, Valentin Christiaens, Danny Gasman, Sierra L. Grant, Maria Morales-Calderón, Benoît Tabone, Alain Abergel, Olivier Absil, Ioannis Argyriou, David Barrado, Anthony Boccaletti, Jeroen Bouwman, Alessio Caratti o Garatti, Ewine F. van Dishoeck, Vincent Geers, Adrian M. Glauser, Manuel Güdel, Rodrigo Guadarrama, Hyerin Jang, Jayatee Kanwar, Pierre-Olivier Lagage, Fred Lahuis, Michael Mueller, Cyrine Nehmé, Göran Olofsson, Eric Pantin, Nicole Pawellek, Giulia Perotti, Tom P. Ray, Donna Rodgers-Lee, Matthias Samland, Silvia Scheithauer, Jürgen Schreiber, Kamber Schwarz, Milou Temmink, Bart Vandenbussche, Marissa Vlasblom, Christoffel Waelkens, L. B. F. M. Waters and Gillian Wright","doi":"10.1039/D3FD00013C","DOIUrl":"https://doi.org/10.1039/D3FD00013C","url":null,"abstract":"<p >The understanding of planet formation has changed recently, embracing the new idea of pebble accretion. This means that the influx of pebbles from the outer regions of planet-forming disks to their inner zones could determine the composition of planets and their atmospheres. The solid and molecular components delivered to the planet-forming region can be best characterized by mid-infrared spectroscopy. With Spitzer low-resolution (<em>R</em> = 100, 600) spectroscopy, this approach was limited to the detection of abundant molecules, such as H<small><sub>2</sub></small>O, C<small><sub>2</sub></small>H<small><sub>2</sub></small>, HCN and CO<small><sub>2</sub></small>. This contribution will present the first results of the MINDS (MIRI mid-INfrared Disk Survey, PI:Th Henning) project. Due do the sensitivity and spectral resolution provided by the James Webb Space Telescope (JWST), we now have a unique tool to obtain the full inventory of chemistry in the inner disks of solar-type stars and brown dwarfs, including also less-abundant hydrocarbons and isotopologues. The Integral Field Unit (IFU) capabilities will enable at the same time spatial studies of the continuum and line emission in extended sources such as debris disks, the flying saucer and also the search for mid-IR signatures of forming planets in systems such as PDS 70. These JWST observations are complementary to ALMA and NOEMA observations of outer-disk chemistry; together these datasets will provide an integral view of the processes occurring during the planet-formation phase.</p>","PeriodicalId":76,"journal":{"name":"Faraday Discussions","volume":"245 ","pages":" 112-137"},"PeriodicalIF":3.4,"publicationDate":"2023-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24849518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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