Bioconcentration and distribution of silver nanoparticles in Japanese medaka (Oryzias latipes).
The study of the bioconcentration of silver nanoparticles (AgNPs) is important to fully understand their hazard potential in the aquatic environment. We synthesized AgNPs radiolabeled with silver isotopes ((110m)Ag) to quantify the bioconcentration of AgNPs coated with citrate (AgNPs-CIT) and polyvinylpyrrolidone (AgNPs-PVP) in Japanese medaka, and to investigate the biodistribution of silver in organs, which were compared with (110m)AgNO3. BCF values were determined to be 39.8±7.4, 42.5±5.1 and 116.4±6.1Lkg(-1) for AgNPs-CIT, AgNPs-PVP and AgNO3, respectively. The release of more silver ions in AgNPs-PVP contributed to a different kinetic uptake pattern with AgNPs-CIT, which was similar to that of AgNO3. Bioconcentrated AgNPs in medaka were not observed to be eliminated, independent of surface coating differences, similarly to AgNO3. There was no difference in biodistribution in each organ before and after depuration in two types of AgNPs and AgNO3, all of which were mainly concentrated in the liver. This study quantified the bioconcentration and distribution of AgNPs and AgNO3 more precisely by utilizing a silver isotope, which is helpful in monitoring the toxicity of AgNPs to Japanese medaka.
Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST) , 261 Cheom-dan Gwagi-ro, Buk-gu, Gwangju 500-712, Republic of Korea.
Youn-Joo
YJ
Jung
Department of Environmental Engineering, Seoul National University of Science and Technology, Seoul 139-743, Republic of Korea.
Ki-Tae
KT
Kim
Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST) , 261 Cheom-dan Gwagi-ro, Buk-gu, Gwangju 500-712, Republic of Korea.
Jun Y
JY
Kim
Department of Oceanography, Chonnam National University, Gwangju 500-755, Republic of Korea.
Song-Yi
SY
Yang
Department of Oceanography, Chonnam National University, Gwangju 500-755, Republic of Korea.
Byeong-Gweon
BG
Lee
Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST) , 261 Cheom-dan Gwagi-ro, Buk-gu, Gwangju 500-712, Republic of Korea. Electronic address: sdkim@gist.ac.kr.
Sang D
SD
Kim
D000465:Algorithms; D000818:Animals; D004563:Electrochemistry; D008099:Liver / Q000378:metabolism; D053768:Metal Nanoparticles; D046529:Microscopy, Electron, Transmission; D053758:Nanoparticles / Q000378:metabolism*; D009928:Organ Specificity; D009990:Oryzias / Q000378:metabolism*; D010316:Particle Size; D011205:Povidone; D011868:Radioisotopes; D018030:Silver Compounds / Q000378:metabolism*; D012835:Silver Nitrate / Q000493:pharmacokinetics; D013499:Surface Properties; D014018:Tissue Distribution
D011868:Radioisotopes; D018030:Silver Compounds; D012835:Silver Nitrate; D011205:Povidone
Bioconcentration; Biodistribution; Japanese medaka; Radiolabeling; Silver nanoparticle