Photoactivated carbon dots immobilized on cellulose for antibacterial activity and biofilm inhibition
Pathogenic bacterial infections represent a major threat to human health, which is worsened by the rise of antibiotic resistance stemming from misuse. Carbon dots (CCM-PBA-NH₂) were synthesized and examined for their potential as photo-activated antimicrobial agents to address this issue. Various ch...
محفوظ في:
| المؤلف الرئيسي: | |
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| مؤلفون آخرون: | , , , , |
| التنسيق: | article |
| منشور في: |
2025
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| الموضوعات: | |
| الوصول للمادة أونلاين: | https://hdl.handle.net/11073/26297 |
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إضافة وسم
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| _version_ | 1864513431985455104 |
|---|---|
| author | Ravindran, Sreeshna |
| author2 | Radha, Remya Terro, Tala Diab, Rasha Khodja, Abdelhamid Al-Sayah, Mohammad |
| author2_role | author author author author author |
| author_facet | Ravindran, Sreeshna Radha, Remya Terro, Tala Diab, Rasha Khodja, Abdelhamid Al-Sayah, Mohammad |
| author_role | author |
| dc.creator.none.fl_str_mv | Ravindran, Sreeshna Radha, Remya Terro, Tala Diab, Rasha Khodja, Abdelhamid Al-Sayah, Mohammad |
| dc.date.none.fl_str_mv | 2025-09-03T10:09:46Z 2025-09-03T10:09:46Z 2025 |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | Ravindran, S., Radha, R., Terro, T. et al. Photoactivated carbon dots immobilized on cellulose for antibacterial activity and biofilm inhibition. Sci Rep 15, 27020 (2025). https://doi.org/10.1038/s41598-025-12317-8 2045-2322 https://hdl.handle.net/11073/26297 10.1038/s41598-025-12317-8 |
| dc.language.none.fl_str_mv | en_US |
| dc.publisher.none.fl_str_mv | Springer Nature |
| dc.relation.none.fl_str_mv | https://doi.org/10.1038/s41598-025-12317-8 |
| dc.subject.none.fl_str_mv | Carbon Dots Antibacterial agents Biofilm inhibition Cellulose composites Curcumin |
| dc.title.none.fl_str_mv | Photoactivated carbon dots immobilized on cellulose for antibacterial activity and biofilm inhibition |
| dc.type.none.fl_str_mv | Peer-Reviewed Published version info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | Pathogenic bacterial infections represent a major threat to human health, which is worsened by the rise of antibiotic resistance stemming from misuse. Carbon dots (CCM-PBA-NH₂) were synthesized and examined for their potential as photo-activated antimicrobial agents to address this issue. Various characterization methods were employed to investigate the structure and morphology of the CCM-PBA-NH₂ carbon dots (CDs). Techniques including UV-VIS and fluorescence spectroscopy, FTIR, zeta potential analysis, Raman spectroscopy, XRD, SEM and TEM were utilized to assess their physicochemical properties, such as size, shape, surface functionalities and charge distribution. These carbon dots exhibited strong antibacterial activity against both Gram-positive and Gram-negative bacteria. They effectively prevented biofilm formation and disrupted preformed biofilms while displaying low cytotoxicity toward mammalian cells at concentrations of 0.1 mg/mL. The antibacterial properties of carbon dots were also evaluated on cellulose and oxidized cellulose fiber surfaces, where a significant reduction in bacterial growth was noted. CD-modified oxidized cellulose displayed strong adhesion, positioning carbon dots as a promising candidate for use in antimicrobial materials, including wound dressings and sterilization tools. Combining carbon dots with biocompatible carriers, like cellulose, presents a versatile and effective strategy for fighting bacterial infections. |
| format | article |
| id | aus_69cb0958c8c032dd475d58ca306c1bb6 |
| identifier_str_mv | Ravindran, S., Radha, R., Terro, T. et al. Photoactivated carbon dots immobilized on cellulose for antibacterial activity and biofilm inhibition. Sci Rep 15, 27020 (2025). https://doi.org/10.1038/s41598-025-12317-8 2045-2322 10.1038/s41598-025-12317-8 |
| language_invalid_str_mv | en_US |
| network_acronym_str | aus |
| network_name_str | aus |
| oai_identifier_str | oai:repository.aus.edu:11073/26297 |
| publishDate | 2025 |
| publisher.none.fl_str_mv | Springer Nature |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | Photoactivated carbon dots immobilized on cellulose for antibacterial activity and biofilm inhibitionRavindran, SreeshnaRadha, RemyaTerro, TalaDiab, RashaKhodja, AbdelhamidAl-Sayah, MohammadCarbon DotsAntibacterial agentsBiofilm inhibitionCellulose compositesCurcuminPathogenic bacterial infections represent a major threat to human health, which is worsened by the rise of antibiotic resistance stemming from misuse. Carbon dots (CCM-PBA-NH₂) were synthesized and examined for their potential as photo-activated antimicrobial agents to address this issue. Various characterization methods were employed to investigate the structure and morphology of the CCM-PBA-NH₂ carbon dots (CDs). Techniques including UV-VIS and fluorescence spectroscopy, FTIR, zeta potential analysis, Raman spectroscopy, XRD, SEM and TEM were utilized to assess their physicochemical properties, such as size, shape, surface functionalities and charge distribution. These carbon dots exhibited strong antibacterial activity against both Gram-positive and Gram-negative bacteria. They effectively prevented biofilm formation and disrupted preformed biofilms while displaying low cytotoxicity toward mammalian cells at concentrations of 0.1 mg/mL. The antibacterial properties of carbon dots were also evaluated on cellulose and oxidized cellulose fiber surfaces, where a significant reduction in bacterial growth was noted. CD-modified oxidized cellulose displayed strong adhesion, positioning carbon dots as a promising candidate for use in antimicrobial materials, including wound dressings and sterilization tools. Combining carbon dots with biocompatible carriers, like cellulose, presents a versatile and effective strategy for fighting bacterial infections.American University of SharjahAbu Dhabi National Oil Company (ADNOC)Emirates NBDSharjah Electricity Water & Gas Authority (SEWA)Technology Innovation Institute (TII)GSK sponsors of the 4th Forum for Women in Research (QUWA)Springer Nature2025-09-03T10:09:46Z2025-09-03T10:09:46Z2025Peer-ReviewedPublished versioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfRavindran, S., Radha, R., Terro, T. et al. Photoactivated carbon dots immobilized on cellulose for antibacterial activity and biofilm inhibition. Sci Rep 15, 27020 (2025). https://doi.org/10.1038/s41598-025-12317-82045-2322https://hdl.handle.net/11073/2629710.1038/s41598-025-12317-8en_UShttps://doi.org/10.1038/s41598-025-12317-8oai:repository.aus.edu:11073/262972025-09-04T11:53:12Z |
| spellingShingle | Photoactivated carbon dots immobilized on cellulose for antibacterial activity and biofilm inhibition Ravindran, Sreeshna Carbon Dots Antibacterial agents Biofilm inhibition Cellulose composites Curcumin |
| status_str | publishedVersion |
| title | Photoactivated carbon dots immobilized on cellulose for antibacterial activity and biofilm inhibition |
| title_full | Photoactivated carbon dots immobilized on cellulose for antibacterial activity and biofilm inhibition |
| title_fullStr | Photoactivated carbon dots immobilized on cellulose for antibacterial activity and biofilm inhibition |
| title_full_unstemmed | Photoactivated carbon dots immobilized on cellulose for antibacterial activity and biofilm inhibition |
| title_short | Photoactivated carbon dots immobilized on cellulose for antibacterial activity and biofilm inhibition |
| title_sort | Photoactivated carbon dots immobilized on cellulose for antibacterial activity and biofilm inhibition |
| topic | Carbon Dots Antibacterial agents Biofilm inhibition Cellulose composites Curcumin |
| url | https://hdl.handle.net/11073/26297 |