Abstract
To establish an applicable model and understand the release mechanisms from silver nanoparticle incorporated in polymeric film used in food applications, we investigated silver migration from low-density polyethylene film incorporated with silver nanoparticles in both distilled water and 4 w/v% acetic acid at various temperatures. The silver nanoparticle incorporated film was prepared from silver-containing master batch and was characterized to contain homogeneously distributed nanoparticles. The silver migration from the polymer matrix was well explained by the Korsmeyer-Peppas mathematical model. The resulting n value, ranging from 0.125 to 0.280, indicated that the silver migration followed Fickian diffusion. The kinetic rate constants (k) was higher in 4% acetic acid than in distilled water. According to the Arrhenius equation, the activation energy (Ea) was calculated to be 31.74 kJ mol−1 for distilled water and 14.19 kJ mol−1 for 4% acetic acid. Hence, the results of this investigation could be useful in predicting the silver release rate and understanding the mechanism of silver release from a LDPE matrix into food simulants.
| Language | English |
|---|---|
| Pages | 1-8 |
| Number of pages | 8 |
| Journal | Journal of Food Engineering |
| Volume | 243 |
| DOIs | |
| Publication status | Published - 2019 Feb 1 |
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Keywords
- Food simulant
- Low-density polyethylene
- Nanoparticles
- Release kinetics
- Silver
ASJC Scopus subject areas
- Food Science
Cite this
Kinetic and thermodynamic studies of silver migration from nanocomposites. / Kim, Min Hee; Kim, Tae Hyun; Ko, Jung A.; Ko, Seonghyuk; Oh, Jae Min; Park, Hyun Jin.
In: Journal of Food Engineering, Vol. 243, 01.02.2019, p. 1-8.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Kinetic and thermodynamic studies of silver migration from nanocomposites
AU - Kim, Min Hee
AU - Kim, Tae Hyun
AU - Ko, Jung A.
AU - Ko, Seonghyuk
AU - Oh, Jae Min
AU - Park, Hyun Jin
PY - 2019/2/1
Y1 - 2019/2/1
N2 - To establish an applicable model and understand the release mechanisms from silver nanoparticle incorporated in polymeric film used in food applications, we investigated silver migration from low-density polyethylene film incorporated with silver nanoparticles in both distilled water and 4 w/v% acetic acid at various temperatures. The silver nanoparticle incorporated film was prepared from silver-containing master batch and was characterized to contain homogeneously distributed nanoparticles. The silver migration from the polymer matrix was well explained by the Korsmeyer-Peppas mathematical model. The resulting n value, ranging from 0.125 to 0.280, indicated that the silver migration followed Fickian diffusion. The kinetic rate constants (k) was higher in 4% acetic acid than in distilled water. According to the Arrhenius equation, the activation energy (Ea) was calculated to be 31.74 kJ mol−1 for distilled water and 14.19 kJ mol−1 for 4% acetic acid. Hence, the results of this investigation could be useful in predicting the silver release rate and understanding the mechanism of silver release from a LDPE matrix into food simulants.
AB - To establish an applicable model and understand the release mechanisms from silver nanoparticle incorporated in polymeric film used in food applications, we investigated silver migration from low-density polyethylene film incorporated with silver nanoparticles in both distilled water and 4 w/v% acetic acid at various temperatures. The silver nanoparticle incorporated film was prepared from silver-containing master batch and was characterized to contain homogeneously distributed nanoparticles. The silver migration from the polymer matrix was well explained by the Korsmeyer-Peppas mathematical model. The resulting n value, ranging from 0.125 to 0.280, indicated that the silver migration followed Fickian diffusion. The kinetic rate constants (k) was higher in 4% acetic acid than in distilled water. According to the Arrhenius equation, the activation energy (Ea) was calculated to be 31.74 kJ mol−1 for distilled water and 14.19 kJ mol−1 for 4% acetic acid. Hence, the results of this investigation could be useful in predicting the silver release rate and understanding the mechanism of silver release from a LDPE matrix into food simulants.
KW - Food simulant
KW - Low-density polyethylene
KW - Nanoparticles
KW - Release kinetics
KW - Silver
UR - http://www.scopus.com/inward/record.url?scp=85053177575&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85053177575&partnerID=8YFLogxK
U2 - 10.1016/j.jfoodeng.2018.08.028
DO - 10.1016/j.jfoodeng.2018.08.028
M3 - Article
VL - 243
SP - 1
EP - 8
JO - Journal of Food Engineering
T2 - Journal of Food Engineering
JF - Journal of Food Engineering
SN - 0260-8774
ER -