PMID- 36804146
OWN - NLM
STAT- MEDLINE
DCOM- 20230315
LR  - 20230315
IS  - 1873-6424 (Electronic)
IS  - 0269-7491 (Linking)
VI  - 323
DP  - 2023 Apr 15
TI  - Trace metal sorption on nanoplastics: An innovative analytical approach combining 
      surface analysis and mass spectrometry techniques.
PG  - 121229
LID - S0269-7491(23)00231-2 [pii]
LID - 10.1016/j.envpol.2023.121229 [doi]
AB  - The mass and volume concentration of nanoplastics is extremely low, but 
      incredibly high in terms of surface area; this is expected to increase their 
      toxicity through the ab/adsorption and transport of chemical co-pollutants such 
      as trace metals. In this context, we studied the interactions between 
      nanoplastics model materials functionalized with carboxylated groups, with either 
      smooth or raspberry-like surface morphologies, and copper as representative of 
      trace metals. For this purpose, a new methodology, using two complementary 
      surface analysis techniques: Time-of-Flight Secondary Ion Mass Spectrometry 
      (ToF-SIMS) and X-ray Photoelectron Spectroscopy (XPS) was developed. In addition, 
      inductively coupled plasma mass spectrometry (ICP-MS) was used to quantify the 
      total mass of sorbed metal on the nanoplastics. This innovative analytical 
      approach from the top surface to the core of nanoplastics demonstrated not only 
      the interactions with copper at the surface level, but also the ability of 
      nanoplastics to absorb metal at their core. Indeed, after 24 h of exposition, the 
      copper concentration at the nanoplastic surface remained constant due to 
      saturation whereas the copper concentration inside the nanoplastic keeps 
      increasing with the time. The sorption kinetic was evaluated to increase with the 
      density of charge of the nanoplastic and the pH. This study confirmed the ability 
      of nanoplastics to act as metal pollutant carriers by both adsorption and 
      absorption phenomena.
CI  - Copyright (c) 2023 Elsevier Ltd. All rights reserved.
FAU - Aynard, Antoine
AU  - Aynard A
AD  - Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, Pau, 
      France.
FAU - Courreges, Cecile
AU  - Courreges C
AD  - Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, Pau, 
      France. Electronic address: cecile.courreges@univ-pau.fr.
FAU - Jimenez-Lamana, Javier
AU  - Jimenez-Lamana J
AD  - Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, Pau, 
      France.
FAU - Raad, Anassya
AU  - Raad A
AD  - Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, Pau, 
      France.
FAU - Miqueu, Christelle
AU  - Miqueu C
AD  - Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, Laboratoire des Fluides 
      Complexes et leurs Reservoirs - IPRA, UMR 5150, Anglet, France.
FAU - Grassl, Bruno
AU  - Grassl B
AD  - Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, Pau, 
      France.
FAU - Reynaud, Stephanie
AU  - Reynaud S
AD  - Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, Pau, 
      France.
LA  - eng
PT  - Journal Article
DEP - 20230216
PL  - England
TA  - Environ Pollut
JT  - Environmental pollution (Barking, Essex : 1987)
JID - 8804476
RN  - 0 (Microplastics)
RN  - 789U1901C5 (Copper)
RN  - 0 (Trace Elements)
SB  - IM
MH  - *Microplastics
MH  - Copper/chemistry
MH  - *Trace Elements
MH  - Spectrum Analysis
MH  - Spectrometry, Mass, Secondary Ion/methods
MH  - Adsorption
OTO - NOTNLM
OT  - ICPMS
OT  - Metal sorption
OT  - Nanoplastics
OT  - ToF-SIMS
OT  - XPS
COIS- Declaration of competing interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2023/02/22 06:00
MHDA- 2023/03/16 06:00
CRDT- 2023/02/21 18:39
PHST- 2022/11/15 00:00 [received]
PHST- 2023/01/17 00:00 [revised]
PHST- 2023/02/04 00:00 [accepted]
PHST- 2023/02/22 06:00 [pubmed]
PHST- 2023/03/16 06:00 [medline]
PHST- 2023/02/21 18:39 [entrez]
AID - S0269-7491(23)00231-2 [pii]
AID - 10.1016/j.envpol.2023.121229 [doi]
PST - ppublish
SO  - Environ Pollut. 2023 Apr 15;323:121229. doi: 10.1016/j.envpol.2023.121229. Epub 
      2023 Feb 16.