Potential silver nanoparticles migration from commercially available polymeric baby products into food simulants

Jeong In Choi, Song Ji Chae, Jung Min Kim, Jae Chun Choi, Se Jong Park, Hee Ju Choi, Hojae Bae, Hyun Jin Park

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


In recent years, silver nanoparticles (AgNPs) have been extensively employed in food packaging systems as a potential antibacterial agent. Although proven to be highly effective, the increased number of AgNP-containing products raises concerns among consumers regarding the migration of AgNPs from the packaging material into foods, which may exert toxic effects. To address this, five baby products were chosen (baby bottle A, baby bottle B, pacifier A, pacifier B and breastmilk storage bag) to investigate AgNPs migration into three food simulants (deionised water, 4% acetic acid (w/v) and 50% ethanol (v/v)) using inductively coupled plasma mass spectrometry (ICP-MS). As a result, the highest level of migrated Ag was observed for 4% acetic acid in the case of baby bottle B, pacifier A, pacifier B and the breastmilk storage bag, with the detection amount ranging from 1.05–2.25 ng/mL. On the other hand, baby bottle A showed the maximum migration for 50% ethanol due to the polymer nature. Finally, a centrifugal ultrafiltration experiment was conducted to determine the fraction of dissolved Ag in acidic simulant and it was found that migrated Ag was predominantly in Ag+ form, with a small fraction of non-ionic AgNPs. Thus, it has been found that the amount of migrated Ag in baby products was low; however, the migration was dependent on the type of food simulant and polymer nature.

Original languageEnglish
Pages (from-to)996-1005
Number of pages10
JournalFood Additives and Contaminants - Part A Chemistry, Analysis, Control, Exposure and Risk Assessment
Issue number5
Publication statusPublished - 2018 May 4


  • Silver
  • baby products
  • food simulant
  • migration
  • nanoparticles

ASJC Scopus subject areas

  • Food Science
  • Chemistry(all)
  • Toxicology
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis


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