Combining asymmetrical flow field-flow fractionation with light-scattering and inductively coupled plasma mass spectrometric detection for characterization of nanoclay used in biopolymer nanocomposites

Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
B SchmidtErik H Larsen

Abstract

It is expected that biopolymers obtained from renewable resources will in due course become fully competitive with fossil fuel-derived plastics as food-packaging materials. In this context, biopolymer nanocomposites are a field of emerging interest since such materials can exhibit improved mechanical and barrier properties and be more suitable for a wider range of food-packaging applications. Natural or synthetic clay nanofillers are being investigated for this purpose in a project called NanoPack funded by the Danish Strategic Research Council. In order to detect and characterize the size of clay nanoparticulates, an analytical system combining asymmetrical flow field-flow fractionation (AF(4)) with multi-angle light-scattering detection (MALS) and inductively coupled plasma mass spectrometry (ICP-MS) is presented. In a migration study, we tested a biopolymer nanocomposite consisting of polylactide (PLA) with 5% Cloisite30B (a derivatized montmorillonite clay) as a filler. Based on AF(4)-MALS analyses, we found that particles ranging from 50 to 800 nm in radius indeed migrated into the 95% ethanol used as a food simulant. The full hyphenated AF(4)-MALS-ICP-MS system showed, however, that none of the characteristic clay mineral...Continue Reading

References

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Citations

Feb 15, 2011·Analytical and Bioanalytical Chemistry·Petr S FedotovBoris Ya Spivakov
May 27, 2011·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·B SchmidtJ H Petersen
Jun 26, 2012·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·L CalzolaiF Rossi
Oct 26, 2014·Mutation Research. Genetic Toxicology and Environmental Mutagenesis·A K SharmaM-L Binderup
Jan 12, 2016·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Yolanda EchegoyenCristina Nerín
Dec 9, 2014·ACS Applied Materials & Interfaces·Timothy V Duncan, Karthik Pillai
Nov 24, 2012·Nanoscale·Carlos A DiazJoseph Hotchkiss
Aug 12, 2014·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Johannes BottRoland Franz
Aug 17, 2016·Environmental Science. Nano·Karthik V PillaiTimothy V Duncan
Nov 1, 2016·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Fang LiuHuai-Ning Zhong
Nov 13, 2013·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Xia YiningRafael Auras
Dec 22, 2016·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Maryam JokarKatrin Loeschner
Mar 25, 2017·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Hristiana VelichkovaNikolay K Vitanov
Apr 25, 2017·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Paola ScarfatoLoredana Incarnato
Sep 15, 2019·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·Daniela EnescuLorenzo M Pastrana
Jul 1, 2014·Comprehensive Reviews in Food Science and Food Safety·Heather AlgerTimothy V Duncan
Jul 1, 2014·Comprehensive Reviews in Food Science and Food Safety·Gregory O NoonanTimothy V Duncan
Jul 14, 2018·Environmental Science & Technology·Patrick J GrayTimothy V Duncan

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Methods Mentioned

BETA
X-ray
electron microscopy
dielectric spectroscopy
NMR
transmission electron microscopy
light-scattering

Software Mentioned

NanoPack

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