Pub Date : 2026-01-31DOI: 10.1016/j.electacta.2026.148347
A. Simons, E. De Ketelaere, T. Depover, K. Verbeken
{"title":"Segmented pipeline electrode approach for electrochemical measurements in dynamic conditions","authors":"A. Simons, E. De Ketelaere, T. Depover, K. Verbeken","doi":"10.1016/j.electacta.2026.148347","DOIUrl":"https://doi.org/10.1016/j.electacta.2026.148347","url":null,"abstract":"","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"34 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2026-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146095540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-31DOI: 10.1016/j.electacta.2026.148344
Salma S. Mansour, Amr M. Mahmoud, Azza A. Moustafa, Nancy W. Nashat
{"title":"Machine-learning Assisted Design of Ultra-Sensitive Chiral Molecularly- Imprinted Sensor for Detection of D-Serine: A Potential Alzheimer Biomarker","authors":"Salma S. Mansour, Amr M. Mahmoud, Azza A. Moustafa, Nancy W. Nashat","doi":"10.1016/j.electacta.2026.148344","DOIUrl":"https://doi.org/10.1016/j.electacta.2026.148344","url":null,"abstract":"","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"92 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2026-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146095529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-31DOI: 10.1016/j.electacta.2026.148349
Halima Mustafa Hussein, Zahra Ali Fattah, Alexander Kuhn
{"title":"Bipolar Electrochemistry for Efficient Removal of Methylene Blue from Polluted Water","authors":"Halima Mustafa Hussein, Zahra Ali Fattah, Alexander Kuhn","doi":"10.1016/j.electacta.2026.148349","DOIUrl":"https://doi.org/10.1016/j.electacta.2026.148349","url":null,"abstract":"","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"3 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2026-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146095532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-31DOI: 10.1016/j.electacta.2026.148348
Filipe C.D.A. Lima, Frank N. Crespilho
Electron transport in proteins has traditionally been described within Marcus theory, where localized hopping events between redox centers are modulated by nuclear reorganization. Recent advances in scanning tunneling microscopy (STM) and single-protein junction measurements, however, reveal measurable conductance values and resonant tunneling features that suggest delocalized quantum contributions. In this work, we present a unified theoretical model that combines Landauer transmission with Marcus heterogeneous kinetics to rationalize enzymatic electron transport. Within the Landauer–Büttiker formalism, STM conductance maps provide access to local transmission probabilities and electrode–protein couplings, which can be recast into effective electronic coupling parameters. These couplings, when introduced into Marcus theory, yield spatially resolved heterogeneous rate constants (<span><span style=""></span><span data-mathml='<math xmlns="http://www.w3.org/1998/Math/MathML"><msub is="true"><mi is="true">k</mi><mtext is="true">het</mtext></msub></math>' role="presentation" style="font-size: 90%; display: inline-block; position: relative;" tabindex="0"><svg aria-hidden="true" focusable="false" height="2.317ex" role="img" style="vertical-align: -0.582ex;" viewbox="0 -747.2 1604.7 997.6" width="3.727ex" xmlns:xlink="http://www.w3.org/1999/xlink"><g fill="currentColor" stroke="currentColor" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g is="true"><g is="true"><use xlink:href="#MJMATHI-6B"></use></g><g is="true" transform="translate(521,-150)"><use transform="scale(0.707)" xlink:href="#MJMAIN-68"></use><use transform="scale(0.707)" x="556" xlink:href="#MJMAIN-65" y="0"></use><use transform="scale(0.707)" x="1001" xlink:href="#MJMAIN-74" y="0"></use></g></g></g></svg><span role="presentation"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub is="true"><mi is="true">k</mi><mtext is="true">het</mtext></msub></math></span></span><script type="math/mml"><math><msub is="true"><mi is="true">k</mi><mtext is="true">het</mtext></msub></math></script></span>), bridging quantum conductance channels with classical ET kinetics. We illustrate this connection with model calculations, including Breit–Wigner transmission functions, Marcus parabolas across conductance ranges of 1–100 nS, and simulated STM conductance maps for enzymes with multiple hotspots. The results demonstrate that nanoscale conductance variations translate into orders-of-magnitude differences in <span><span style=""></span><span data-mathml='<math xmlns="http://www.w3.org/1998/Math/MathML"><msub is="true"><mi is="true">k</mi><mtext is="true">het</mtext></msub></math>' role="presentation" style="font-size: 90%; display: inline-block; position: relative;" tabindex="0"><svg aria-hidden="true" focusable="false" height="2.317ex" role="img" style="vertical-align: -0.582ex;" viewbox="0 -747.2 1604.7 99
{"title":"Protein Local Conductance in Quantum Bioelectrochemistry via Landauer–Marcus Kinetics","authors":"Filipe C.D.A. Lima, Frank N. Crespilho","doi":"10.1016/j.electacta.2026.148348","DOIUrl":"https://doi.org/10.1016/j.electacta.2026.148348","url":null,"abstract":"Electron transport in proteins has traditionally been described within Marcus theory, where localized hopping events between redox centers are modulated by nuclear reorganization. Recent advances in scanning tunneling microscopy (STM) and single-protein junction measurements, however, reveal measurable conductance values and resonant tunneling features that suggest delocalized quantum contributions. In this work, we present a unified theoretical model that combines Landauer transmission with Marcus heterogeneous kinetics to rationalize enzymatic electron transport. Within the Landauer–Büttiker formalism, STM conductance maps provide access to local transmission probabilities and electrode–protein couplings, which can be recast into effective electronic coupling parameters. These couplings, when introduced into Marcus theory, yield spatially resolved heterogeneous rate constants (<span><span style=\"\"></span><span data-mathml='<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub is=\"true\"><mi is=\"true\">k</mi><mtext is=\"true\">het</mtext></msub></math>' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"2.317ex\" role=\"img\" style=\"vertical-align: -0.582ex;\" viewbox=\"0 -747.2 1604.7 997.6\" width=\"3.727ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"><g is=\"true\"><g is=\"true\"><use xlink:href=\"#MJMATHI-6B\"></use></g><g is=\"true\" transform=\"translate(521,-150)\"><use transform=\"scale(0.707)\" xlink:href=\"#MJMAIN-68\"></use><use transform=\"scale(0.707)\" x=\"556\" xlink:href=\"#MJMAIN-65\" y=\"0\"></use><use transform=\"scale(0.707)\" x=\"1001\" xlink:href=\"#MJMAIN-74\" y=\"0\"></use></g></g></g></svg><span role=\"presentation\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub is=\"true\"><mi is=\"true\">k</mi><mtext is=\"true\">het</mtext></msub></math></span></span><script type=\"math/mml\"><math><msub is=\"true\"><mi is=\"true\">k</mi><mtext is=\"true\">het</mtext></msub></math></script></span>), bridging quantum conductance channels with classical ET kinetics. We illustrate this connection with model calculations, including Breit–Wigner transmission functions, Marcus parabolas across conductance ranges of 1–100 nS, and simulated STM conductance maps for enzymes with multiple hotspots. The results demonstrate that nanoscale conductance variations translate into orders-of-magnitude differences in <span><span style=\"\"></span><span data-mathml='<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub is=\"true\"><mi is=\"true\">k</mi><mtext is=\"true\">het</mtext></msub></math>' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"2.317ex\" role=\"img\" style=\"vertical-align: -0.582ex;\" viewbox=\"0 -747.2 1604.7 99","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"58 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2026-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146095522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-30DOI: 10.1016/j.electacta.2026.148335
Adane Y. Heram, Ephriem T. Mengesha, Abi T. Mengesha, Zewdu Bezu, Yiheyis Bogale, Endale T. Bedada, Tadele T. Megerssa
{"title":"E. coli Imprinted CdS/ZnO/Ag2CO3 Nanocomposites for Rapid, Sensitive and Selective Electrochemical E. Coli Sensing","authors":"Adane Y. Heram, Ephriem T. Mengesha, Abi T. Mengesha, Zewdu Bezu, Yiheyis Bogale, Endale T. Bedada, Tadele T. Megerssa","doi":"10.1016/j.electacta.2026.148335","DOIUrl":"https://doi.org/10.1016/j.electacta.2026.148335","url":null,"abstract":"","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"8 1","pages":"148335"},"PeriodicalIF":6.6,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146072737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-30DOI: 10.1016/j.electacta.2026.148341
Dijana Jadreško, Robert Vianello, Ivana Novak Jovanović
{"title":"Electrochemical oxidation and voltammetric determination of γ-carbolinone-derived synthetic cannabinoid 5F-Cumyl-PEGACLONE","authors":"Dijana Jadreško, Robert Vianello, Ivana Novak Jovanović","doi":"10.1016/j.electacta.2026.148341","DOIUrl":"https://doi.org/10.1016/j.electacta.2026.148341","url":null,"abstract":"","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"7 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146089405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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