{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,1]],"date-time":"2026-03-01T08:49:22Z","timestamp":1772354962904,"version":"3.50.1"},"reference-count":46,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2024,8,23]],"date-time":"2024-08-23T00:00:00Z","timestamp":1724371200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Romanian Ministry of Education and Research, CNCS","award":["PN-III-P1-1.1-PD-2019-1285"],"award-info":[{"award-number":["PN-III-P1-1.1-PD-2019-1285"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pharmaceuticals"],"abstract":"<jats:p>Increasing levels of reactive oxygen species generate oxidative stress in the human body that can lead to various medical conditions. The use of nanomaterials exhibiting antioxidant properties may prevent these effects. The biological synthesis of metallic nanoparticles using plant extracts with antioxidant properties can offer benefits due to their active compounds. The used extracts contained reducing and stabilizing agents, which were shown to be transferred onto the gold nanoparticles, functionalizing them. Herin, we report a gold nanoparticle synthesis by eco-friendly biological methods (b-AuNPs) using extracts of sea buckthorn, lavender, walnuts, and grapes, obtained through ultrasound-assisted extraction and pressure-enhanced extraction. The obtained b-AuNPs were characterized by UV\u2013Vis and FTIR spectroscopies and visualized using transmission electron microscopy. The catalytic and scavenging effect of the b-AuNPs towards H2O2 (as reactive oxygen species) was evaluated electrochemically, highlighting the protective behavior of b-AuNPs towards lipid peroxidation. All experiments demonstrated the stability and reproducibility of prepared b-AuNPs with enhanced antioxidant and catalytic properties, opening a new perspective for their use in biomedical applications.<\/jats:p>","DOI":"10.3390\/ph17091105","type":"journal-article","created":{"date-parts":[[2024,8,23]],"date-time":"2024-08-23T12:38:43Z","timestamp":1724416723000},"page":"1105","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Biologically Synthesized Gold Nanoparticles with Enhanced Antioxidant and Catalytic Properties"],"prefix":"10.3390","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2971-4547","authenticated-orcid":false,"given":"Melinda","family":"David","sequence":"first","affiliation":[{"name":"Laboratory for Quality Control and Process Monitoring, University of Bucharest, 4-12 Elisabeta Blvd., 030018 Bucharest, Romania"},{"name":"Department of Fundamental, Prophylactic and Clinical Disciplines, Faculty of Medicine, Transilvania University of Brasov, Str. Universitatii no. 1, 500068 Brasov, Romania"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1848-6753","authenticated-orcid":false,"given":"Teodor A.","family":"Enache","sequence":"additional","affiliation":[{"name":"National Institute of Material Physics, Atomistilor 405A, 077125 Magurele, Romania"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0360-016X","authenticated-orcid":false,"given":"Lucian","family":"Barbu-Tudoran","sequence":"additional","affiliation":[{"name":"Electron Microscopy Center \u201cC. Craciun\u201d, Biology and Geology Faculty, Babes-Bolyai University Cluj-Napoca, 4-6 Clinicilor Str., 400006 Cluj-Napoca, Romania"},{"name":"National Institute for R&D of Isotopic and Molecular Technologies (INCDTIM) Cluj-Napoca, 67-103 Donath Str., 400293 Cluj-Napoca, Romania"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9481-3496","authenticated-orcid":false,"given":"Camelia","family":"Bala","sequence":"additional","affiliation":[{"name":"Laboratory for Quality Control and Process Monitoring, University of Bucharest, 4-12 Elisabeta Blvd., 030018 Bucharest, Romania"},{"name":"Department of Analytical Chemistry and Physical Chemistry, University of Bucharest, 4-12 Elisabeta Blvd., 030018 Bucharest, Romania"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1467-3113","authenticated-orcid":false,"given":"Monica","family":"Florescu","sequence":"additional","affiliation":[{"name":"Department of Fundamental, Prophylactic and Clinical Disciplines, Faculty of Medicine, Transilvania University of Brasov, Str. Universitatii no. 1, 500068 Brasov, Romania"}]}],"member":"1968","published-online":{"date-parts":[[2024,8,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2534","DOI":"10.1039\/D1NR08144F","article-title":"Green approaches for the synthesis of metal and metal oxide nanoparticles using microbial and plant extracts","volume":"14","author":"Jeevanandam","year":"2022","journal-title":"Nanoscale"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"8841","DOI":"10.2147\/IJN.S149371","article-title":"Green synthesis palladium nanoparticles mediated by white tea (Camellia sinensis) extract with antioxidant, antibacterial, and antiproliferative activities toward the human leukemia (MOLT-4) cell line","volume":"12","author":"Azizi","year":"2017","journal-title":"Int. J. 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