{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T19:30:45Z","timestamp":1787686245474,"version":"build-2784847793"},"reference-count":80,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,2,11]],"date-time":"2026-02-11T00:00:00Z","timestamp":1770768000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Microbiol."],"abstract":"<jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>\n                      Chitosan have been leveraged to create chitosan nanocapsules within a bio-based nanocarrier system, enhancing efficacy and overcoming widespread microbial resistance. To generate chitosan nanocapsules (CNCs) that act as inhibitory agents against pathogenic microbes, this study combined titanium nanoparticles (TiO\n                      <jats:sub>2<\/jats:sub>\n                      NPs) with chitosan nanoparticles (Cs NPs).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      <jats:italic>A.flavus<\/jats:italic>\n                      was used for the biosynthesis of TiO\n                      <jats:sub>2<\/jats:sub>\n                      NPs. Dynamic light scattering (DLS), zeta potential, atomic force microscopy (AFM), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD), were utilized to assess the physicochemical properties of TiO\n                      <jats:sub>2<\/jats:sub>\n                      NPs and their CNCs. These techniques clarified particle diameter, charge stability, specific surface area, surface morphology, shape, dimensional forms, and structural parameters, respectively.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The findings showed that TiO\n                      <jats:sub>2<\/jats:sub>\n                      NPs and their nanocapsules achieved an encapsulation efficacy of over 86.7 \u00b1 1.8% at 1.5% w\/v chitosan concentration, with particle sizes of 40.7, 40.6, and 87.3 nm for TiO\n                      <jats:sub>2<\/jats:sub>\n                      NPs, CsNPs, and CNCs, respectively. Nanoparticle stability was confirmed by a zeta potential greater than \u201330.1 \u00b1 4.5mV for TiO\n                      <jats:sub>2<\/jats:sub>\n                      NPs. Furthermore, TiO\n                      <jats:sub>2<\/jats:sub>\n                      NPs and their nanocapsules suppressed both Gram-positive and Gram-negative bacteria, with CNCs exhibiting more potent inhibitory effects than either TiO\n                      <jats:sub>2<\/jats:sub>\n                      NPs or CsNPs. The minimum inhibitory concentrations (MICs) of CNCs against\n                      <jats:italic>Salmonella typhimurium<\/jats:italic>\n                      and\n                      <jats:italic>Aspergillus fumigatus<\/jats:italic>\n                      were remarkably low, at 20 and 10 \u03bcg mL\n                      <jats:sup>\u22121<\/jats:sup>\n                      , respectively. TEM images of\n                      <jats:italic>S. typhimurium<\/jats:italic>\n                      and\n                      <jats:italic>A. fumigatus<\/jats:italic>\n                      treated with CNCs exhibited asymmetric cell deformations, wrinkled external surfaces, cell depressions, and declined cell counts. Cytotoxicity studies showed that CNCs exhibited non-cytotoxic behavior on normal human melanocytes (HFB4). In contrast, CNCs reduced the viability of human colon carcinoma (HCT-116) and hepatocellular carcinoma (HepG-2).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Nanomaterials, both alone or in nanocapsules, offer a promising alternative for inhibiting harmful microorganisms and represent a potential pathway for the development of anticancer medications. The findings indicate that CNCs are safe and effective against multidrug-resistant bacteria and fungi, making them a viable alternative to current antibiotic therapies.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fmicb.2026.1741753","type":"journal-article","created":{"date-parts":[[2026,2,11]],"date-time":"2026-02-11T05:31:53Z","timestamp":1770787913000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Antimicrobial, anticancer activities and molecular docking of eco-friendly chitosan nanocapsule loaded with biosynthesized titanium nanoparticles by Aspergillus flavus"],"prefix":"10.3389","volume":"17","author":[{"given":"Nashwa","family":"El-Gazzar","sequence":"first","affiliation":[{"name":"Department of Botany and Microbiology, Faculty of Science, Zagazig University","place":["Zagazig, Egypt"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marwa","family":"Rafat","sequence":"additional","affiliation":[{"name":"Department of Botany and Microbiology, Faculty of Science, Zagazig University","place":["Zagazig, Egypt"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gamal","family":"Rabie","sequence":"additional","affiliation":[{"name":"Department of Botany and Microbiology, Faculty of Science, Zagazig University","place":["Zagazig, Egypt"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Basel","family":"Sitohy","sequence":"additional","affiliation":[{"name":"Department of Clinical Microbiology, Infection and Immunology, Ume\u00e5 University","place":["Ume\u00e5, Sweden"]},{"name":"Department of Diagnostics and Intervention, Oncology, Ume\u00e5 University","place":["Ume\u00e5, Sweden"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,2,11]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"19617","DOI":"10.1038\/s41598-022-23629-3","article-title":"Potential effects of nano-cellulose and nano-silica\/polyvinyl alcohol nanocomposites in the strengthening of dyed paper manuscripts with madder: an experimental study.","volume":"12","author":"Abdel-Hamied","year":"2022","journal-title":"Sci. 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