ACS Central SciencePub Date : 2024-11-12DOI: 10.1021/acs.est.4c1125710.1021/acs.est.4c11257
Peng Wang*, Jiang Xu, Wenbin Wang, Tanju Karanfil, Michael S. Wong, Virender K. Sharma and Rajnish Kumar,
{"title":"Materials Science and Environmental Applicability","authors":"Peng Wang*, Jiang Xu, Wenbin Wang, Tanju Karanfil, Michael S. Wong, Virender K. Sharma and Rajnish Kumar, ","doi":"10.1021/acs.est.4c1125710.1021/acs.est.4c11257","DOIUrl":"https://doi.org/10.1021/acs.est.4c11257https://doi.org/10.1021/acs.est.4c11257","url":null,"abstract":"","PeriodicalId":10,"journal":{"name":"ACS Central Science","volume":"58 45","pages":"19907–19908 19907–19908"},"PeriodicalIF":10.8,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142608238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ACS Central SciencePub Date : 2024-11-12eCollection Date: 2024-11-27DOI: 10.1021/acscentsci.4c01507
Yuting Ma, Reagan J Dreiling, Elizabeth A Recker, Ji-Won Kim, Shelby L Shankel, Jenny Hu, Alexandra D Easley, Zachariah A Page, Tristan H Lambert, Brett P Fors
{"title":"Multimaterial Thermoset Synthesis: Switching Polymerization Mechanism with Light Dosage.","authors":"Yuting Ma, Reagan J Dreiling, Elizabeth A Recker, Ji-Won Kim, Shelby L Shankel, Jenny Hu, Alexandra D Easley, Zachariah A Page, Tristan H Lambert, Brett P Fors","doi":"10.1021/acscentsci.4c01507","DOIUrl":"10.1021/acscentsci.4c01507","url":null,"abstract":"<p><p>The synthesis of polymeric thermoset materials with spatially controlled physical properties using readily available resins is a grand challenge. To address this challenge, we developed a photoinitiated polymerization method that enables the spatial switching of radical and cationic polymerizations by controlling the dosage of monochromatic light. This method, which we call Switching Polymerizations by Light Titration (SPLiT), leverages the use of substoichiometric amounts of a photobuffer in combination with traditional photoacid generators. Upon exposure to a low dose of light, the photobuffer inhibits the cationic polymerization, while radical polymerization is initiated. With an increased light dosage, the buffer system saturates, leading to the formation of a strong acid that initiates a cationic polymerization of the dormant monomer. Applying this strategy, patterning is achieved by spatially varying light dosage via irradiation time or intensity allowing for simple construction of multimaterial thermosets. Importantly, by the addition of an inexpensive photobuffer, such as tetrabutylammonium chloride, commercially available resins can be implemented in grayscale vat photopolymerization 3D printing to prepare sophisticated multimodulus constructs.</p>","PeriodicalId":10,"journal":{"name":"ACS Central Science","volume":"10 11","pages":"2125-2131"},"PeriodicalIF":12.7,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11613345/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ACS Central SciencePub Date : 2024-11-12DOI: 10.1021/acscentsci.4c0150710.1021/acscentsci.4c01507
Yuting Ma, Reagan J. Dreiling, Elizabeth A. Recker, Ji-Won Kim, Shelby L. Shankel, Jenny Hu, Alexandra D. Easley, Zachariah A. Page*, Tristan H. Lambert* and Brett P. Fors*,
{"title":"Multimaterial Thermoset Synthesis: Switching Polymerization Mechanism with Light Dosage","authors":"Yuting Ma, Reagan J. Dreiling, Elizabeth A. Recker, Ji-Won Kim, Shelby L. Shankel, Jenny Hu, Alexandra D. Easley, Zachariah A. Page*, Tristan H. Lambert* and Brett P. Fors*, ","doi":"10.1021/acscentsci.4c0150710.1021/acscentsci.4c01507","DOIUrl":"https://doi.org/10.1021/acscentsci.4c01507https://doi.org/10.1021/acscentsci.4c01507","url":null,"abstract":"<p >The synthesis of polymeric thermoset materials with spatially controlled physical properties using readily available resins is a grand challenge. To address this challenge, we developed a photoinitiated polymerization method that enables the spatial switching of radical and cationic polymerizations by controlling the dosage of monochromatic light. This method, which we call Switching Polymerizations by Light Titration (SPLiT), leverages the use of substoichiometric amounts of a photobuffer in combination with traditional photoacid generators. Upon exposure to a low dose of light, the photobuffer inhibits the cationic polymerization, while radical polymerization is initiated. With an increased light dosage, the buffer system saturates, leading to the formation of a strong acid that initiates a cationic polymerization of the dormant monomer. Applying this strategy, patterning is achieved by spatially varying light dosage via irradiation time or intensity allowing for simple construction of multimaterial thermosets. Importantly, by the addition of an inexpensive photobuffer, such as tetrabutylammonium chloride, commercially available resins can be implemented in grayscale vat photopolymerization 3D printing to prepare sophisticated multimodulus constructs.</p><p >We employ weakly basic anionic photobuffers to decouple two photopolymerizations in one pot. The photobuffer enables tuning of multimaterials by adjusting the dosage of a single wavelength of light.</p>","PeriodicalId":10,"journal":{"name":"ACS Central Science","volume":"10 11","pages":"2125–2131 2125–2131"},"PeriodicalIF":12.7,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acscentsci.4c01507","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142713496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ACS Central SciencePub Date : 2024-11-11DOI: 10.1021/acscentsci.4c0110610.1021/acscentsci.4c01106
Quentin R. Loague, Marzieh Heidari, Hayden J. Mann, Evgeny O. Danilov, Felix N. Castellano, Elena Galoppini* and Gerald J. Meyer*,
{"title":"Structural Gating Enhances Long-Distance Light-Driven Interfacial Electron Transfer","authors":"Quentin R. Loague, Marzieh Heidari, Hayden J. Mann, Evgeny O. Danilov, Felix N. Castellano, Elena Galoppini* and Gerald J. Meyer*, ","doi":"10.1021/acscentsci.4c0110610.1021/acscentsci.4c01106","DOIUrl":"https://doi.org/10.1021/acscentsci.4c01106https://doi.org/10.1021/acscentsci.4c01106","url":null,"abstract":"<p >Structural gating provides a molecular means to transfer electrons preferentially in one desired vectorial direction, a behavior needed for applications in artificial photosynthesis. At the interfaces utilized herein, visible-light absorption by a transition metal complex <i>opens</i> a “structural gate” by planarization of otherwise rotating phenyl rings in <i>p-</i>phenylene ethynylene (PE) bridge units. Planarization provides a conjugated pathway for electron flow toward a conductive oxide surface. Interfacial electron transfer to the oxide restores rotation and <i>closes</i> the gate to the unwanted recombination reaction. This structural gating results in nearly quantitative long-distance (>20 Å) interfacial electron transfer that occurs ∼1000 times faster than transfer in the opposite direction. A comparative kinetic study of these complexes with those that contain ionic bridge units, without gating function, as a function of the applied potential and hence −Δ<i>G</i>° provided a physical basis for the structural gating. A small distance-dependent reorganization energy with weak electronic coupling underlies the success of this gate that enables efficient long-distance electron transfer and slow recombination.</p><p >A light-triggered structural gate provides a conjugated pathway for efficient long-distance vectorial electron transfer to a conductive oxide and inhibits transfer from the oxide.</p>","PeriodicalId":10,"journal":{"name":"ACS Central Science","volume":"10 11","pages":"2132–2144 2132–2144"},"PeriodicalIF":12.7,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acscentsci.4c01106","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142713521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ACS Central SciencePub Date : 2024-11-11eCollection Date: 2024-11-27DOI: 10.1021/acscentsci.4c01106
Quentin R Loague, Marzieh Heidari, Hayden J Mann, Evgeny O Danilov, Felix N Castellano, Elena Galoppini, Gerald J Meyer
{"title":"Structural Gating Enhances Long-Distance Light-Driven Interfacial Electron Transfer.","authors":"Quentin R Loague, Marzieh Heidari, Hayden J Mann, Evgeny O Danilov, Felix N Castellano, Elena Galoppini, Gerald J Meyer","doi":"10.1021/acscentsci.4c01106","DOIUrl":"10.1021/acscentsci.4c01106","url":null,"abstract":"<p><p>Structural gating provides a molecular means to transfer electrons preferentially in one desired vectorial direction, a behavior needed for applications in artificial photosynthesis. At the interfaces utilized herein, visible-light absorption by a transition metal complex <i>opens</i> a \"structural gate\" by planarization of otherwise rotating phenyl rings in <i>p-</i>phenylene ethynylene (PE) bridge units. Planarization provides a conjugated pathway for electron flow toward a conductive oxide surface. Interfacial electron transfer to the oxide restores rotation and <i>closes</i> the gate to the unwanted recombination reaction. This structural gating results in nearly quantitative long-distance (>20 Å) interfacial electron transfer that occurs ∼1000 times faster than transfer in the opposite direction. A comparative kinetic study of these complexes with those that contain ionic bridge units, without gating function, as a function of the applied potential and hence -Δ<i>G</i>° provided a physical basis for the structural gating. A small distance-dependent reorganization energy with weak electronic coupling underlies the success of this gate that enables efficient long-distance electron transfer and slow recombination.</p>","PeriodicalId":10,"journal":{"name":"ACS Central Science","volume":"10 11","pages":"2132-2144"},"PeriodicalIF":12.7,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11613339/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ecofriendly, Highly Selective Lithium Extraction by Redox-Mediated Electrodialysis.","authors":"Rongxuan Xie, Danyi Sun, Jinyao Tang, Xiaochen Shen, Parsa Pishva, Yanlin Zhu, Kevin Huang, Zhenmeng Peng","doi":"10.1021/acscentsci.4c01373","DOIUrl":"10.1021/acscentsci.4c01373","url":null,"abstract":"<p><p>The rapid proliferation of lithium battery applications has underscored the critical role of lithium supply in the transition to industrial electrification. Existing lithium production methods encounter significant challenges in efficiency, scalability, environmental impact, and cost. The integration of redox-mediated electrodialysis with a dense ceramic Li<sub>6/16</sub>Sr<sub>7/16</sub>Ta<sub>3/4</sub>Hf<sub>1/4</sub>O<sub>3</sub> perovskite membrane, distinguished by its unique lattice structure allowing only lithium-ion exchange and transport, enables efficient, highly lithium-selective extraction directly from a diversity of resources including seawater and various brines. This approach offers continuous operation capability, can utilize renewable power, and has notable advantages, including chemical-free operation and little waste generation. Overall, this innovative solution presents a one-step, ecofriendly, highly selective lithium extraction method.</p>","PeriodicalId":10,"journal":{"name":"ACS Central Science","volume":"10 11","pages":"2119-2124"},"PeriodicalIF":12.7,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11613207/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ACS Central SciencePub Date : 2024-11-09DOI: 10.1021/acscentsci.4c0137310.1021/acscentsci.4c01373
Rongxuan Xie, Danyi Sun, Jinyao Tang, Xiaochen Shen, Parsa Pishva, Yanlin Zhu, Kevin Huang* and Zhenmeng Peng*,
{"title":"Ecofriendly, Highly Selective Lithium Extraction by Redox-Mediated Electrodialysis","authors":"Rongxuan Xie, Danyi Sun, Jinyao Tang, Xiaochen Shen, Parsa Pishva, Yanlin Zhu, Kevin Huang* and Zhenmeng Peng*, ","doi":"10.1021/acscentsci.4c0137310.1021/acscentsci.4c01373","DOIUrl":"https://doi.org/10.1021/acscentsci.4c01373https://doi.org/10.1021/acscentsci.4c01373","url":null,"abstract":"<p >The rapid proliferation of lithium battery applications has underscored the critical role of lithium supply in the transition to industrial electrification. Existing lithium production methods encounter significant challenges in efficiency, scalability, environmental impact, and cost. The integration of redox-mediated electrodialysis with a dense ceramic Li<sub>6/16</sub>Sr<sub>7/16</sub>Ta<sub>3/4</sub>Hf<sub>1/4</sub>O<sub>3</sub> perovskite membrane, distinguished by its unique lattice structure allowing only lithium-ion exchange and transport, enables efficient, highly lithium-selective extraction directly from a diversity of resources including seawater and various brines. This approach offers continuous operation capability, can utilize renewable power, and has notable advantages, including chemical-free operation and little waste generation. Overall, this innovative solution presents a one-step, ecofriendly, highly selective lithium extraction method.</p><p >The one-step redox-mediated electrodialysis (rm-ED) strategy for direct lithium extraction from brines with LSTH membrane is employed for high selectivity powered by solar panels.</p>","PeriodicalId":10,"journal":{"name":"ACS Central Science","volume":"10 11","pages":"2119–2124 2119–2124"},"PeriodicalIF":12.7,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acscentsci.4c01373","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142719388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ACS Central SciencePub Date : 2024-11-07eCollection Date: 2024-11-27DOI: 10.1021/acscentsci.4c01834
Kaden C Stevens, Brent S Sumerlin
{"title":"Stimuli-Responsive Polymers Prevent Severe Hypoglycemia.","authors":"Kaden C Stevens, Brent S Sumerlin","doi":"10.1021/acscentsci.4c01834","DOIUrl":"10.1021/acscentsci.4c01834","url":null,"abstract":"","PeriodicalId":10,"journal":{"name":"ACS Central Science","volume":"10 11","pages":"2003-2005"},"PeriodicalIF":12.7,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11613298/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ACS Central SciencePub Date : 2024-11-07DOI: 10.1021/acscentsci.4c0183410.1021/acscentsci.4c01834
Kaden C. Stevens, and , Brent S. Sumerlin*,
{"title":"Stimuli-Responsive Polymers Prevent Severe Hypoglycemia","authors":"Kaden C. Stevens, and , Brent S. Sumerlin*, ","doi":"10.1021/acscentsci.4c0183410.1021/acscentsci.4c01834","DOIUrl":"https://doi.org/10.1021/acscentsci.4c01834https://doi.org/10.1021/acscentsci.4c01834","url":null,"abstract":"<p >Stimuli-responsive micelles disassemble in low-glucose environments, revealing glucagon that prevents severe hypoglycemia.</p>","PeriodicalId":10,"journal":{"name":"ACS Central Science","volume":"10 11","pages":"2003–2005 2003–2005"},"PeriodicalIF":12.7,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acscentsci.4c01834","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142719341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ACS Central SciencePub Date : 2024-11-06DOI: 10.1021/acscentsci.4c0180310.1021/acscentsci.4c01803
Ute Eberle,
{"title":"The Fight Against Frostbite Progresses","authors":"Ute Eberle, ","doi":"10.1021/acscentsci.4c0180310.1021/acscentsci.4c01803","DOIUrl":"https://doi.org/10.1021/acscentsci.4c01803https://doi.org/10.1021/acscentsci.4c01803","url":null,"abstract":"<p >The first FDA-approved drug for frostbite can save limbs from amputation, and researchers are working on “coldscreen” preventatives.</p>","PeriodicalId":10,"journal":{"name":"ACS Central Science","volume":"10 11","pages":"1976–1979 1976–1979"},"PeriodicalIF":12.7,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acscentsci.4c01803","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142713597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}