TY - JOUR TI - Antimicrobial treatment based on green silver nanoparticles applied to textile heritage AU - Lite, Mihaela-Cristina AU - Constantinescu, Rodica Roxana AU - Badea, Nicoleta AU - Chirilă, Laura AU - Toma, Doina AU - Simion, Demetra AU - Popescu, Alina T2 - Industria Textila AB - Nanomaterials science expanded its application in various directions (biomedical, smart materials, sensors, optoelectronics, etc.). Silver nanoparticles (AgNPs) have been intensively tested within the textile department and demonstrated antimicrobial activity when applied under various forms (commercial colloidal nano-silver, in situ synthesis, etc.). The application of silver nanoparticles for historical artefacts conservation has been addressed, and several papers have reported the use of such treatments for cultural heritage conservation. In this work, the historical sample tested consisted of a cotton fabric, part of a priest’s costume, dating back to the 18 th century, provided by the Church of Saint Nicolae “Dintr-o Zi”, located in Bucharest. The piece was treated with AgNPs-based treatment, which was phyto-synthesised by using a plant aqueous extract. The effect of the treatment on the sample was examined by studying fibres of the fabrics with electronic microscopy (SEM) and by quantifying the modification of the sample appearance, using chromatic parameters measurements. The antimicrobial activity was tested against gram-positive and gram-negative bacteria strains, Escherichia coli and Staphylococcus aureus, and the fungal strain Penicillium hirsutum. The layer of silver nanoparticles was uniformly distributed on the surface of the historical textile fibres. The changes in the appearance of the textile were minimal, with a total colour difference of 2.11. Evaluating the antimicrobial activity, superior antifungal performance was observed against the Penicillium hirsutum strain (for which the inhibition zone value was 12.5 mm). The FTIR spectrum demonstrated that the integrity of the textile fibre is maintained following the application of the treatment. DA - 2025/06/30/ PY - 2025 DO - 10.35530/IT.076.03.202498 DP - DOI.org (Crossref) VL - 76 IS - 03 SP - 358 EP - 364 SN - 12225347 UR - https://www.revistaindustriatextila.ro/images/2025/3/07%20LITE%20INDUSTRIA%20TEXTILA%20no.3_2025.pdf Y2 - 2025/07/08/17:37:56 ER -