Type

Journal Article

Authors

Enda Cummins
Michael Morris
Shafrina Azlin-Hasim
Malco Cruz-Romero
Joseph P Kerry
Joseph Christopher Hannon

Subjects

Chemistry

Topics
food packaging fruit juice acetic acid transmission electron microscopy tem inductively coupled plasma exposure assessment c 60 ionic species

Human exposure assessment of silver and copper migrating from an antimicrobial nanocoated packaging material into an acidic food simulant. (2016)

Abstract To examine the human exposure to a novel silver and copper nanoparticle (AgNP and CuNP)/polystyrene-polyethylene oxide block copolymer (PS-b-PEO) food packaging coating, the migration of Ag and Cu into 3% acetic acid (3% HAc) food simulant was assessed at 60 °C for 10 days. Significantly lower migration was observed for Ag (0.46 mg/kg food) compared to Cu (0.82 mg/kg food) measured by inductively coupled plasma - atomic emission spectrometry (ICP-AES). In addition, no distinct population of AgNPs or CuNPs were observed in 3% HAc by nanoparticle tracking analysis (NTA) and transmission electron microscopy (TEM). The predicted human exposure to Ag and Cu was used to calculate a margin of exposure (MOE) for ionic species of Ag and Cu, which indicated the safe use of the food packaging in a hypothetical scenario (e.g. as fruit juice packaging). While migration exceeded regulatory limits, the calculated MOE suggests current migration limits may be conservative for specific nano-packaging applications.
Collections Ireland -> Trinity College Dublin -> PubMed

Full list of authors on original publication

Enda Cummins, Michael Morris, Shafrina Azlin-Hasim, Malco Cruz-Romero, Joseph P Kerry, Joseph Christopher Hannon

Experts in our system

1
Enda Cummins
University College Dublin
Total Publications: 24
 
2
Michael A. Morris
University College Cork
Total Publications: 121
 
3
Shafrina Azlin-Hasim
University College Cork
Total Publications: 4
 
4
Malco Cruz-Romero
University College Cork
Total Publications: 7
 
5
J P Kerry
University College Cork
Total Publications: 130
 
6
Joseph Christopher Hannon
University College Cork
Total Publications: 3