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Modulating the growth of cysteine-capped cadmium sulfide quantum dots with enzymatically produced hydrogen peroxide

Nano Research 2017年第6期10卷 1932-1941页

作者： Ruta Grinyte javier barroso Laura Saa Valeri Pavlov Biosensing Unit CIC BiomaGUNE Parque Tecnologico de San Sebastian Paseo Miramon 182 Donostia-San Sebastian 20014 Spain

Cysteine （CSH） readily stabilizes cadmium sulfide quantum dots （CdS QDs） that grow in aqueous buffered solutions. The oxidation of CSH by hydrogen peroxide （H202） at room temperature yields cystine （CSSC）, which is less efficient in stabilizing CdS QDs compared to CSH. Herein, we demonstrate that such oxidation causes a decrease in the formation rate of CSH-capped CdS QDs from Cd^2＋ and S^2- ions. For the first time, we combined the oxidation of CSH with the glucose oxidase （GOx）-assisted biocatalytic oxidation of D-glucose, which leads to a buildup of H2O2 in the reaction mixture. The enzymatically modulated in situ growth of CdS QDs was monitored using two techniques： fluorescence spectroscopy and photoelectrochemical （PEC） analysis. This system enables quantification of GOx and glucose in human serum.

关键词： quantum dots photoelectrochemistry enzyme fluorescence hydrogen peroxide

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A Tutorial on Federated Learning from Theory to Practice:Foundations,Software Frameworks,Exemplary Use Cases,and Selected Trends

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IEEE/CAA Journal of Automatica Sinica 2024年第4期11卷 824-850页

作者： M.Victoria Luzón Nuria Rodríguez-barroso Alberto Argente-Garrido Daniel Jiménez-López Jose M.Moyano javier Del Ser Weiping Ding Francisco Herrera Department of Software Engineering Andalusian Research Institute in Data Science and Computational Intelligence(DaSCI)University of GranadaGranada 18071Spain Department of Computer Science and Artificial Intelligence Andalusian Research Institute in Data Science and Computational Intelligence(DaSCI)University of GranadaGranada 18071Spain Department of Communications Engineering University of the Basque Country(UPV/EHU)and also with TECNALIABasque Research&Technology Alliance(BRTA)Spain School of Information Science and Technology Nantong UniversityNantong 226019China

When data privacy is imposed as a necessity,Federated learning(FL)emerges as a relevant artificial intelligence field for developing machine learning(ML)models in a distributed and decentralized *** allows ML models to be trained on local devices without any need for centralized data transfer,thereby reducing both the exposure of sensitive data and the possibility of data interception by malicious third *** paradigm has gained momentum in the last few years,spurred by the plethora of real-world applications that have leveraged its ability to improve the efficiency of distributed learning and to accommodate numerous participants with their data *** virtue of FL,models can be learned from all such distributed data sources while preserving data *** aim of this paper is to provide a practical tutorial on FL,including a short methodology and a systematic analysis of existing software ***,our tutorial provides exemplary cases of study from three complementary perspectives:i)Foundations of FL,describing the main components of FL,from key elements to FL categories;ii)Implementation guidelines and exemplary cases of study,by systematically examining the functionalities provided by existing software frameworks for FL deployment,devising a methodology to design a FL scenario,and providing exemplary cases of study with source code for different ML approaches;and iii)Trends,shortly reviewing a non-exhaustive list of research directions that are under active investigation in the current FL *** ultimate purpose of this work is to establish itself as a referential work for researchers,developers,and data scientists willing to explore the capabilities of FL in practical applications.

关键词： Data privacy distributed machine learning federated learning software frameworks

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SIRT3-mediated inhibition of FOS through histone H3 deacetylation prevents cardiac fibrosis and inflammation

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Signal Transduction and Targeted Therapy 2020年第1期5卷 2322-2331页

作者： Xavier Palomer MSilvia Román-Azcona javier Pizarro-Delgado Ana Planavila Francesc Villarroya Brenda Valenzuela-Alcaraz Fátima Crispi Álvaro Sepúlveda-Martínez Irene Miguel-Escalada Jorge Ferrer JFrancisco Nistal Raquel García Mercy MDavidson Emma barroso Manuel Vázquez-Carrera Department of Pharmacology Toxicology and Therapeutic ChemistryIBUB(Institut de Biomedicina de la Universitat de Barcelona)Research Institute-Pediatric Research InstituteHospital Sant Joan de Déuand CIBER de Diabetes y Enfermedades Metabólicas Asociadas(CIBERDEM)Faculty of Pharmacy and Food SciencesUniversity of BarcelonaBarcelonaSpain Department of Biochemistry and Molecular Biomedicine IBUB and CIBER Fisiopatología de la Obesidad y Nutrición(CIBEROBN)Faculty of BiologyUniversity of BarcelonaBarcelonaSpain aBCNatal-Barcelona Center for Maternal–Fetal and Neonatal Medicine(Hospital Clínic and Hospital Sant Joan de Deu) Institut d’Investigacions Biomèdiques August Pi i SunyerUniversitat de Barcelonaand Center for Biomedical Research on Rare Diseases(CIBER-ER)BarcelonaSpain Genomic Programming of Betacells Laboratory Institut d’Investigacions August Pi i Sunyer(IDIBAPS)and CIBERDEMBarcelonaSpain Section of Epigenomics and Disease Department of Medicineand National Institute for Health Research(NIHR)Imperial Biomedical Research CentreImperial College LondonLondonUK Servicio de Cirugía Cardiovascular Hospital Universitario Marqués de ValdecillaDepartamento de Ciencias Médicas y QuirúrgicasFacultad de MedicinaUniversidad de CantabriaInstituto de Investigación Marqués de Valdecilla(IDIVAL)Centro de Investigación Biomédica en Red Cardiovascular(CIBERCV)Instituto de Salud Carlos IIISantanderSpain Departamento de Fisiología y Farmacología Facultad de MedicinaUniversidad de CantabriaInstituto de Investigación Marqués de Valdecilla(IDIVAL)SantanderSpain Department of Radiation Oncology Columbia UniversityNew YorkNYUSA

Sirtuin 3(SIRT3)is a deacetylase that modulates proteins that control metabolism and protects against oxidative *** of SIRT3 activity has been proposed as a promising therapeutic target for ameliorating metabolic diseases and associated cardiac *** this study,we investigated the role of SIRT3 in inflammation and fibrosis in the heart using male mice with constitutive and systemic deletion of SIRT3 and human cardiac AC16 ***3 knockout mice showed cardiac fibrosis and inflammation that was characterized by augmented transcriptional activity of *** with this,SIRT3 overexpression in human and neonatal rat cardiomyocytes partially prevented the inflammatory and profibrotic response induced by TNF-α.Notably,these effects were associated with a decrease in the mRNA and protein levels of FOS and the DNA-binding activity of ***,we demonstrated that SIRT3 inhibits FOS transcription through specific histone H3 lysine K27 deacetylation at its *** findings highlight an important function of SIRT3 in mediating the often intricate profibrotic and proinflammatory responses of cardiac cells through the modulation of the FOS/AP-1 *** fibrosis and inflammation are crucial in the progression of cardiac hypertrophy,heart failure,and diabetic cardiomyopathy,our results point to SIRT3 as a potential target for treating these diseases.

关键词： SIRT3 inflammation cardiac

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