Production of Silver Nano-Inks and Surface Coatings for Anti-Microbial Food Packaging and Its Ecological Impact
Food spoilage is an ongoing global issue that contributes to rising carbon dioxide emissions and increased demand for food processing. This work developed anti-bacterial coatings utilising inkjet printing of silver nano-inks onto food-grade polymer packaging, with the potential to enhance food safet...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/24/6/5341 |
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| author | N. Arul Manikandan Ronan McCann Dimitrios Kakavas Keith D. Rochfort Sithara P. Sreenilayam Godze Alkan Tom Stornetta Allan Robert McGivern Konstantinos Grintzalis Bernd Friedrich Greg Foley Dermot Brabazon Brian Freeland |
| author_facet | N. Arul Manikandan Ronan McCann Dimitrios Kakavas Keith D. Rochfort Sithara P. Sreenilayam Godze Alkan Tom Stornetta Allan Robert McGivern Konstantinos Grintzalis Bernd Friedrich Greg Foley Dermot Brabazon Brian Freeland |
| author_sort | N. Arul Manikandan |
| collection | DOAJ |
| description | Food spoilage is an ongoing global issue that contributes to rising carbon dioxide emissions and increased demand for food processing. This work developed anti-bacterial coatings utilising inkjet printing of silver nano-inks onto food-grade polymer packaging, with the potential to enhance food safety and reduce food spoilage. Silver nano-inks were synthesised via laser ablation synthesis in solution (LaSiS) and ultrasound pyrolysis (USP). The silver nanoparticles (AgNPs) produced using LaSiS and USP were characterised using transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy, UV-Vis spectrophotometry and dynamic light scattering (DLS) analysis. The laser ablation technique, operated under recirculation mode, produced nanoparticles with a small size distribution with an average diameter ranging from 7–30 nm. Silver nano-ink was synthesised by blending isopropanol with nanoparticles dispersed in deionised water. The silver nano-inks were printed on plasma-cleaned cyclo-olefin polymer. Irrespective of the production methods, all silver nanoparticles exhibited strong antibacterial activity against <i>E. coli</i> with a zone of inhibition exceeding 6 mm. Furthermore, silver nano-inks printed cyclo-olefin polymer reduced the bacterial cell population from 1235 (±45) × 10<sup>6</sup> cell/mL to 960 (±110) × 10<sup>6</sup> cell/mL. The bactericidal performance of silver-coated polymer was comparable to that of the penicillin-coated polymer, wherein a reduction in bacterial population from 1235 (±45) × 10<sup>6</sup> cell/mL to 830 (±70) × 10<sup>6</sup> cell/mL was observed. Finally, the ecotoxicity of the silver nano-ink printed cyclo-olefin polymer was tested with daphniids, a species of water flea, to simulate the release of coated packaging into a freshwater environment. |
| first_indexed | 2024-03-11T06:26:14Z |
| format | Article |
| id | doaj.art-95d975cb5a3741b0bc20ef0f6398e3c0 |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-11T06:26:14Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-95d975cb5a3741b0bc20ef0f6398e3c02023-11-17T11:32:29ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672023-03-01246534110.3390/ijms24065341Production of Silver Nano-Inks and Surface Coatings for Anti-Microbial Food Packaging and Its Ecological ImpactN. Arul Manikandan0Ronan McCann1Dimitrios Kakavas2Keith D. Rochfort3Sithara P. Sreenilayam4Godze Alkan5Tom Stornetta6Allan Robert McGivern7Konstantinos Grintzalis8Bernd Friedrich9Greg Foley10Dermot Brabazon11Brian Freeland12School of Biotechnology, Dublin City University, Glasnevin, D09 K20V Dublin, IrelandI-Form, Advanced Manufacturing Research Centre, School of Mechanical and Manufacturing Engineering, Dublin City University, Glasnevin, D09 NA55 Dublin, IrelandSchool of Biotechnology, Dublin City University, Glasnevin, D09 K20V Dublin, IrelandSchool of Nursing, Psychotherapy and Community Health, Dublin City University, Glasnevin, D09 NA55 Dublin, IrelandI-Form, Advanced Manufacturing Research Centre, School of Mechanical and Manufacturing Engineering, Dublin City University, Glasnevin, D09 NA55 Dublin, IrelandInstitute of Process Metallurgy and Metal Recycling (IME), RWTH Aachen University, Intzestraße 3, 52056 Aachen, GermanySchool of Biotechnology, Dublin City University, Glasnevin, D09 K20V Dublin, IrelandSchool of Biotechnology, Dublin City University, Glasnevin, D09 K20V Dublin, IrelandSchool of Biotechnology, Dublin City University, Glasnevin, D09 K20V Dublin, IrelandInstitute of Process Metallurgy and Metal Recycling (IME), RWTH Aachen University, Intzestraße 3, 52056 Aachen, GermanySchool of Biotechnology, Dublin City University, Glasnevin, D09 K20V Dublin, IrelandI-Form, Advanced Manufacturing Research Centre, School of Mechanical and Manufacturing Engineering, Dublin City University, Glasnevin, D09 NA55 Dublin, IrelandSchool of Biotechnology, Dublin City University, Glasnevin, D09 K20V Dublin, IrelandFood spoilage is an ongoing global issue that contributes to rising carbon dioxide emissions and increased demand for food processing. This work developed anti-bacterial coatings utilising inkjet printing of silver nano-inks onto food-grade polymer packaging, with the potential to enhance food safety and reduce food spoilage. Silver nano-inks were synthesised via laser ablation synthesis in solution (LaSiS) and ultrasound pyrolysis (USP). The silver nanoparticles (AgNPs) produced using LaSiS and USP were characterised using transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy, UV-Vis spectrophotometry and dynamic light scattering (DLS) analysis. The laser ablation technique, operated under recirculation mode, produced nanoparticles with a small size distribution with an average diameter ranging from 7–30 nm. Silver nano-ink was synthesised by blending isopropanol with nanoparticles dispersed in deionised water. The silver nano-inks were printed on plasma-cleaned cyclo-olefin polymer. Irrespective of the production methods, all silver nanoparticles exhibited strong antibacterial activity against <i>E. coli</i> with a zone of inhibition exceeding 6 mm. Furthermore, silver nano-inks printed cyclo-olefin polymer reduced the bacterial cell population from 1235 (±45) × 10<sup>6</sup> cell/mL to 960 (±110) × 10<sup>6</sup> cell/mL. The bactericidal performance of silver-coated polymer was comparable to that of the penicillin-coated polymer, wherein a reduction in bacterial population from 1235 (±45) × 10<sup>6</sup> cell/mL to 830 (±70) × 10<sup>6</sup> cell/mL was observed. Finally, the ecotoxicity of the silver nano-ink printed cyclo-olefin polymer was tested with daphniids, a species of water flea, to simulate the release of coated packaging into a freshwater environment.https://www.mdpi.com/1422-0067/24/6/5341antibacterialfood packaginglaser ablationsilver nanoparticlesultrasound pyrolysis |
| spellingShingle | N. Arul Manikandan Ronan McCann Dimitrios Kakavas Keith D. Rochfort Sithara P. Sreenilayam Godze Alkan Tom Stornetta Allan Robert McGivern Konstantinos Grintzalis Bernd Friedrich Greg Foley Dermot Brabazon Brian Freeland Production of Silver Nano-Inks and Surface Coatings for Anti-Microbial Food Packaging and Its Ecological Impact International Journal of Molecular Sciences antibacterial food packaging laser ablation silver nanoparticles ultrasound pyrolysis |
| title | Production of Silver Nano-Inks and Surface Coatings for Anti-Microbial Food Packaging and Its Ecological Impact |
| title_full | Production of Silver Nano-Inks and Surface Coatings for Anti-Microbial Food Packaging and Its Ecological Impact |
| title_fullStr | Production of Silver Nano-Inks and Surface Coatings for Anti-Microbial Food Packaging and Its Ecological Impact |
| title_full_unstemmed | Production of Silver Nano-Inks and Surface Coatings for Anti-Microbial Food Packaging and Its Ecological Impact |
| title_short | Production of Silver Nano-Inks and Surface Coatings for Anti-Microbial Food Packaging and Its Ecological Impact |
| title_sort | production of silver nano inks and surface coatings for anti microbial food packaging and its ecological impact |
| topic | antibacterial food packaging laser ablation silver nanoparticles ultrasound pyrolysis |
| url | https://www.mdpi.com/1422-0067/24/6/5341 |
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