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Front Cover: Effect of Temperature on Calcium-Based Chemical Garden Growth (ChemSystemsChem 5/2024) 封面：温度对钙基化学花园生长的影响（ChemSystemsChem 5/2024）
IF 3.1
ChemSystemsChem Pub Date : 2024-09-13 DOI: 10.1002/syst.202480501
Dr. Pamela Knoll, Dr. Corentin C. Loron
{"title":"Front Cover: Effect of Temperature on Calcium-Based Chemical Garden Growth (ChemSystemsChem 5/2024)","authors":"Dr. Pamela Knoll,&nbsp;Dr. Corentin C. Loron","doi":"10.1002/syst.202480501","DOIUrl":"https://doi.org/10.1002/syst.202480501","url":null,"abstract":"<p>The cover picture shows a scanning electron micrograph of self-organized chemical garden tubes. These calcium-based hollow structures are composed of porous walls separating an alkaline exterior liquid and acidic, metal salt interior solution. Natural analogs to this classic chemistry experiment are hydrothermal vents found at the base of the ocean. Their structures are composed of mineral walls which separate two disparate chemical environments maintaining a far-from-equilibrium setting. More in theResearch Article by Pamela Knoll and Corentin C. Loron.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":72566,"journal":{"name":"ChemSystemsChem","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/syst.202480501","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142233126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Heat-Flow-Driven Nonequilibria for Prebiotic Chemistry 前生物化学中的热流驱动非平衡态
IF 3.1
ChemSystemsChem Pub Date : 2024-08-02 DOI: 10.1002/syst.202400039
Christof B. Mast
{"title":"Heat-Flow-Driven Nonequilibria for Prebiotic Chemistry","authors":"Christof B. Mast","doi":"10.1002/syst.202400039","DOIUrl":"https://doi.org/10.1002/syst.202400039","url":null,"abstract":"<p>The origin of life, being one of the most fascinating questions in science, is increasingly addressed by interdisciplinary research. In addition to developing plausible chemical models for synthesizing the first biomolecules from prebiotic building blocks, searching for suitable and plausible non-equilibrium boundary conditions that drive such reactions is thus a central task in this endeavor. This perspective highlights the remarkably simple yet versatile scenario of heat flows in geologically plausible crack-like compartments as a habitat for prebiotic chemistry. Based on our recent findings, it is discussed how thermophoretically driven systems offer insights into solving key milestones in the origin of life research, such as the template inhibition problem, prebiotic symmetry breaking, and the promotion of prebiotic chemistry by selective enrichment of biochemical precursors. Our results on molecular-selective thermogravitational accumulation, heat flow-induced pH gradients, and environmental cycles are put in the context of other approaches to non-equilibrium systems and prebiotic chemistry. The coupling of heat flows to chemical and physical boundary conditions thus opens up numerous future experimental research avenues, such as the extraction of phosphate from geomaterials or the integration of chemical reaction networks into thermal non-equilibrium systems, offering a promising framework for advancing the field of prebiotic chemistry.</p>","PeriodicalId":72566,"journal":{"name":"ChemSystemsChem","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/syst.202400039","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142233166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photoswitchable Surfactants–Are there Alternatives to Azobenzene-Based Systems? 光开关表面活性剂--偶氮苯系物的替代品？
IF 3.1
ChemSystemsChem Pub Date : 2024-07-29 DOI: 10.1002/syst.202400026
Dr. Marek Bekir, Dr. Johannes Gurke, Dr. Martin Reifarth
{"title":"Photoswitchable Surfactants–Are there Alternatives to Azobenzene-Based Systems?","authors":"Dr. Marek Bekir,&nbsp;Dr. Johannes Gurke,&nbsp;Dr. Martin Reifarth","doi":"10.1002/syst.202400026","DOIUrl":"https://doi.org/10.1002/syst.202400026","url":null,"abstract":"<p>Owing to their property to alter their surface-activity upon the irradiation with light, photoswitchable surfactants have gained tremendous interest in colloidal science. Their mere addition to a colloidal system allows, e. g., to obtain control over polyelectrolytes, micro- and nanoscale particles or emulsions. Most literature examples focus on azobenzene-based, or related, systems, which employ a photoisomerization reaction for switching. Other structures, such as spiropyrans, play a subordinate role, although they have gained increasing attention over the past few years. In this perspective article, we want to provide an overview about existing systems of photoswitchable surfactants. We address the issue that alternative photoswitches are given less attention, and what benefits surfactants could possess that are based on said switchable units. With our contribution, we want to broaden the view on stimuli-responsive surfactants – and to provide a guideline for the design of novel structures.</p>","PeriodicalId":72566,"journal":{"name":"ChemSystemsChem","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/syst.202400026","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142233177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nonequilibrium Membrane Dynamics Induced by  Active Protein Interactions and Chemical Reactions: A Review 活性蛋白质相互作用和化学反应诱导的非平衡膜动力学：综述
IF 3.1
ChemSystemsChem Pub Date : 2024-07-22 DOI: 10.1002/syst.202400042
Hiroshi Noguchi
{"title":"Nonequilibrium Membrane Dynamics Induced by  Active Protein Interactions and Chemical Reactions: A Review","authors":"Hiroshi Noguchi","doi":"10.1002/syst.202400042","DOIUrl":"https://doi.org/10.1002/syst.202400042","url":null,"abstract":"Biomembranes wrapping cells and organelles are not only the partitions that separate the insides but also dynamic fields for biological functions\u0000accompanied by membrane shape changes. In this review, we discuss the spatiotemporal patterns and fluctuations of membranes under nonequilibrium conditions. In particular, we focus on theoretical analyses and simulations. Protein active forces enhance or suppress the membrane fluctuations; the membrane height spectra are deviated from the thermal spectra. Protein binding or unbinding to the membrane is activated or inhibited by other proteins and chemical reactions, such as ATP hydrolysis. Such active binding processes can induce traveling waves, Turing patterns, and membrane morphological changes. They can be represented by the continuum reaction‐diffusion equations and discrete lattice/particle models with state flips. The effects of structural changes in amphiphilic molecules on the molecular‐assembly structures are also discussed.","PeriodicalId":72566,"journal":{"name":"ChemSystemsChem","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141815102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Molecular Information Processing in a Chemical Reaction Network using Surface‐Mediated Polyelectrolyte Complexation 利用表面介导的聚电解质络合在化学反应网络中处理分子信息
IF 3.1
ChemSystemsChem Pub Date : 2024-07-21 DOI: 10.1002/syst.202400050
A. H. Koyuncu, Giulia Allegri, Taghi Moazzenzade, J. Huskens, Saskia Lindhoud, Albert S. Y. Wong
{"title":"Molecular Information Processing in a Chemical Reaction Network using Surface‐Mediated Polyelectrolyte Complexation","authors":"A. H. Koyuncu, Giulia Allegri, Taghi Moazzenzade, J. Huskens, Saskia Lindhoud, Albert S. Y. Wong","doi":"10.1002/syst.202400050","DOIUrl":"https://doi.org/10.1002/syst.202400050","url":null,"abstract":"Biochemical communication is ubiquitous in life. Biology use chemical reaction networks to regulate concentrations of myriad signaling molecules. Recent advances in supramolecular and systems chemistry demonstrate that feedback mechanisms of such networks can be rationally designed but strategies to transmit and process information encoded in molecules are still in their infancy. Here, we designed a polyelectrolyte reaction network maintained under out‐of‐equilibrium conditions using pH gradients in flow. The network, comprises two weak polyelectrolytes (polyallylamine, PAH, and polyacrylic acid, PAA) in solution and one immobilized on the surface (poly‐l‐lysine, PLL). We chose PAH and PAA as their complexation process is known to be history dependent (i.e., the preceding state of the system can determine the next state). Surprisingly, we found that the hysteresis diminished as the PLL‐coated surface supported rather than perturbed the formation of the complex. PLL‐coated surfaces are further exploited to established that reversible switching between the assembled and disassembled state of polyelectrolytes can exploited to process signals encoded in the frequency and duration of pH pulses. We envision that the strategy employed to modulate information in this polyelectrolyte reaction network could open novel routes to transmit and process molecular information in biologically relevant processes.","PeriodicalId":72566,"journal":{"name":"ChemSystemsChem","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141818800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Front Cover: Artificial Molecular Systems for Complex Functions Based on DNA Nanotechnology and Cell-Sized Lipid Vesicles (ChemSystemsChem 4/2024) 封面：基于 DNA 纳米技术和细胞大小脂质囊泡的复杂功能人工分子系统（ChemSystemsChem 4/2024）
IF 3.1
ChemSystemsChem Pub Date : 2024-07-15 DOI: 10.1002/syst.202480401
Prof. Dr. Yusuke Sato
{"title":"Front Cover: Artificial Molecular Systems for Complex Functions Based on DNA Nanotechnology and Cell-Sized Lipid Vesicles (ChemSystemsChem 4/2024)","authors":"Prof. Dr. Yusuke Sato","doi":"10.1002/syst.202480401","DOIUrl":"https://doi.org/10.1002/syst.202480401","url":null,"abstract":"<p><b>The front cover</b> illustrates cell-like functional molecular systems based on DNA nanotechnology and lipid vesicles. The base-specific interactions of DNA enable the construction of various functional components that can be integrated into lipid vesicles, aiming to create artificial molecular systems comparable to, or even surpassing, natural molecular systems, such as living cells. The Review by Y. Sato describes the latest achievements in functions realized through the combination of DNA nanotechnology and lipid vesicles.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":72566,"journal":{"name":"ChemSystemsChem","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/syst.202480401","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141624528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Life in Lab: Chemically Fueled Systems Chemistry for Emergent Properties 实验室生活化学燃料系统 新生特性化学
IF 3.1
ChemSystemsChem Pub Date : 2024-07-09 DOI: 10.1002/syst.202400028
Sudeep Koppayithodi, Prerna Ranasingh, Nishant Singh
{"title":"Life in Lab: Chemically Fueled Systems Chemistry for Emergent Properties","authors":"Sudeep Koppayithodi, Prerna Ranasingh, Nishant Singh","doi":"10.1002/syst.202400028","DOIUrl":"https://doi.org/10.1002/syst.202400028","url":null,"abstract":"Understanding the emergence of complex properties in dissipative non‐equilibrium systems is crucial for unraveling the mysteries of life processes. The review focuses on the documented research on chemically fueled autonomous systems, self‐sorting towards compartmentalization, self‐replication via autocatalysis, and rhythmic chemical oscillators. In addition to that, the review also discusses newly introduced reactions and dynamic combinatorial libraries in dissipative systems.","PeriodicalId":72566,"journal":{"name":"ChemSystemsChem","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141663063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Chemical Mechanism for the Bistable-to-Oscillatory Transition in Colloidal Aggregates of Silver Phosphate 磷酸银胶体聚集体从双稳态到振荡转变的化学机制
IF 3.1
ChemSystemsChem Pub Date : 2024-06-18 DOI: 10.1002/syst.202400024
María Antonieta Sánchez-Farrán, Ali Borhan, Ayusman Sen, Vincent H. Crespi
{"title":"A Chemical Mechanism for the Bistable-to-Oscillatory Transition in Colloidal Aggregates of Silver Phosphate","authors":"María Antonieta Sánchez-Farrán,&nbsp;Ali Borhan,&nbsp;Ayusman Sen,&nbsp;Vincent H. Crespi","doi":"10.1002/syst.202400024","DOIUrl":"https://doi.org/10.1002/syst.202400024","url":null,"abstract":"<p>We previously reported collective behavior in colloidal aggregates of silver phosphate in H<sub>2</sub>O<sub>2</sub> and under UV light. Diffusiophoretic interactions between aggregates lead to non-linear behavior such as oscillations and synchronization, in which oscillation frequencies increase with H<sub>2</sub>O<sub>2</sub> concentration. The aggregates transition between schooling and dispersed behaviors with incipient spatiotemporal correlations. We identified a kinetic model that maps the chemical species that are thought to underlie non-linear phenomena in the colloidal aggregates, i. e. adsorbed oxygen species *OOH<sup>−</sup> and *O. We investigate the emergent dynamics for the simplest case, the coupling of two otherwise bistable clusters. Two coupling schemes are proposed and we find that – depending on whether the coupling is excitatory or inhibitory – the clusters may oscillate with zero or <i>π</i> phase shift.</p>","PeriodicalId":72566,"journal":{"name":"ChemSystemsChem","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/syst.202400024","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142233160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photostimuli reach a selective intermediate in a microflow: one‐shot transformation from a supramolecular co‐polymer to a micro‐disk structure 光刺激到达微流中的选择性中间体：从超分子共聚物到微盘结构的一次转化
ChemSystemsChem Pub Date : 2024-06-10 DOI: 10.1002/syst.202400031
Akira Kaneyoshi, Shota Nomura, Takato Maeda, Takahiro Kusukawa, Yoshihiro Kikkawa, Munenori Numata
{"title":"Photostimuli reach a selective intermediate in a microflow: one‐shot transformation from a supramolecular co‐polymer to a micro‐disk structure","authors":"Akira Kaneyoshi, Shota Nomura, Takato Maeda, Takahiro Kusukawa, Yoshihiro Kikkawa, Munenori Numata","doi":"10.1002/syst.202400031","DOIUrl":"https://doi.org/10.1002/syst.202400031","url":null,"abstract":"In supramolecular chemistry, photostimulants are generally combined with a static solution under thermodynamic equilibrium with no time progression. In this study, snapshot control of supramolecular polymerization was first combined with pinpoint photoirradiation using a microflow system. Employing the azobenzene derivative trans‐C3NO as a monomer, a snapshot moment of supramolecular polymerization along a microflow channel was selectively irradiated with UV light at 365 nm in a space‐resolved manner, so that the monomers, intermediates (oligomers), or extended supramolecular polymers were selectively exposed to light stimuli. We found that a pinpoint photostimulus to each snapshot moment had a pronounced effect on the kinetic pathway by tuning the timing at which the snapshot moment of cis‐C3NO was generated.","PeriodicalId":72566,"journal":{"name":"ChemSystemsChem","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141365643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Many-Chemicals Problem of Systems Chemistry 系统化学的多化学问题
IF 3.1
ChemSystemsChem Pub Date : 2024-05-22 DOI: 10.1002/syst.202400027
Dr. Oliver R. Maguire
{"title":"The Many-Chemicals Problem of Systems Chemistry","authors":"Dr. Oliver R. Maguire","doi":"10.1002/syst.202400027","DOIUrl":"10.1002/syst.202400027","url":null,"abstract":"<p>An <i>E. coli</i> cell contains ~2500 different chemicals which combine into an ordered biochemical reaction network out of which emerges a living system. A chemist taking 2500 different chemicals from a laboratory chemical cabinet and combining them together will likely cause an explosive disaster and produce an intractable chemical sludge. Systems Chemistry aspires to construct systems whose complexity rivals that of life. However, to do this we will need to learn how to combine hundreds or thousands of different chemicals together to form a functional system without descending into a disordered chemical sludge. This is the Many-Chemicals Problem of Systems Chemistry. I explore a key strategy life employs to overcome this challenge. Namely, the combination of kinetically stable and thermodynamically activated molecules (e. g. ATP) with enzyme catalysts (e. g. histidine kinases). I suggest how the strategy could have begun at the origin of life. Finally, I assess the implications of this strategy for Systems Chemistry and how it will enable systems chemists to construct systems whose complexity rivals that of life.</p>","PeriodicalId":72566,"journal":{"name":"ChemSystemsChem","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141108586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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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