PMID- 34578477 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231107 IS - 2079-4991 (Print) IS - 2079-4991 (Electronic) IS - 2079-4991 (Linking) VI - 11 IP - 9 DP - 2021 Aug 24 TI - Tuning the Reduction of Graphene Oxide Nanoflakes Differently Affects Neuronal Networks in the Zebrafish. LID - 10.3390/nano11092161 [doi] LID - 2161 AB - The increasing engineering of biomedical devices and the design of drug-delivery platforms enriched by graphene-based components demand careful investigations of the impact of graphene-related materials (GRMs) on the nervous system. In addition, the enhanced diffusion of GRM-based products and technologies that might favor the dispersion in the environment of GRMs nanoparticles urgently requires the potential neurotoxicity of these compounds to be addressed. One of the challenges in providing definite evidence supporting the harmful or safe use of GRMs is addressing the variety of this family of materials, with GRMs differing for size and chemistry. Such a diversity impairs reaching a unique and predictive picture of the effects of GRMs on the nervous system. Here, by exploiting the thermal reduction of graphene oxide nanoflakes (GO) to generate materials with different oxygen/carbon ratios, we used a high-throughput analysis of early-stage zebrafish locomotor behavior to investigate if modifications of a specific GRM chemical property influenced how these nanomaterials affect vertebrate sensory-motor neurophysiology-exposing zebrafish to GO downregulated their swimming performance. Conversely, reduced GO (rGO) treatments boosted locomotor activity. We concluded that the tuning of single GRM chemical properties is sufficient to produce differential effects on nervous system physiology, likely interfering with different signaling pathways. FAU - Di Mauro, Giuseppe AU - Di Mauro G AD - Neuron Physiology and Technology Lab, International School for Advanced Studies (SISSA), Neuroscience, Via Bonomea 265, 34136 Trieste, Italy. FAU - Rauti, Rossana AU - Rauti R AD - Neuron Physiology and Technology Lab, International School for Advanced Studies (SISSA), Neuroscience, Via Bonomea 265, 34136 Trieste, Italy. FAU - Casani, Raffaele AU - Casani R AD - Neuron Physiology and Technology Lab, International School for Advanced Studies (SISSA), Neuroscience, Via Bonomea 265, 34136 Trieste, Italy. FAU - Chimowa, George AU - Chimowa G AUID- ORCID: 0000-0002-7421-1068 AD - CIRIMAT, UMR CNRS 5085, Universite Toulouse Paul Sabatier, Bat. CIRIMAT, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France. FAU - Galibert, Anne Marie AU - Galibert AM AD - CIRIMAT, UMR CNRS 5085, Universite Toulouse Paul Sabatier, Bat. CIRIMAT, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France. FAU - Flahaut, Emmanuel AU - Flahaut E AUID- ORCID: 0000-0001-8344-6902 AD - CIRIMAT, UMR CNRS 5085, Universite Toulouse Paul Sabatier, Bat. CIRIMAT, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France. FAU - Cellot, Giada AU - Cellot G AUID- ORCID: 0000-0001-9198-8402 AD - Neuron Physiology and Technology Lab, International School for Advanced Studies (SISSA), Neuroscience, Via Bonomea 265, 34136 Trieste, Italy. FAU - Ballerini, Laura AU - Ballerini L AUID- ORCID: 0000-0001-8420-0787 AD - Neuron Physiology and Technology Lab, International School for Advanced Studies (SISSA), Neuroscience, Via Bonomea 265, 34136 Trieste, Italy. LA - eng GR - 881603/Horizon 2020/ PT - Journal Article DEP - 20210824 PL - Switzerland TA - Nanomaterials (Basel) JT - Nanomaterials (Basel, Switzerland) JID - 101610216 PMC - PMC8468975 OTO - NOTNLM OT - graphene oxide OT - reduced graphene oxide OT - sensory-motor nervous system OT - synapses OT - zebrafish larvae COIS- The authors declare no conflict of interest. EDAT- 2021/09/29 06:00 MHDA- 2021/09/29 06:01 PMCR- 2021/08/24 CRDT- 2021/09/28 01:26 PHST- 2021/06/28 00:00 [received] PHST- 2021/08/18 00:00 [revised] PHST- 2021/08/20 00:00 [accepted] PHST- 2021/09/28 01:26 [entrez] PHST- 2021/09/29 06:00 [pubmed] PHST- 2021/09/29 06:01 [medline] PHST- 2021/08/24 00:00 [pmc-release] AID - nano11092161 [pii] AID - nanomaterials-11-02161 [pii] AID - 10.3390/nano11092161 [doi] PST - epublish SO - Nanomaterials (Basel). 2021 Aug 24;11(9):2161. doi: 10.3390/nano11092161.