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Pagnacco C, Kravicz MH, Sica FS, Fontanini V, González de San Román E, Lund R, Re F, Barroso-Bujans F. In Vitro Biocompatibility and Endothelial Permeability of Branched Polyglycidols Generated by Ring-Opening Polymerization of Glycidol with B(C 6F 5) 3 under Dry and Wet Conditions. Biomacromolecules 2024; 25:3583-3595. [PMID: 38703359 PMCID: PMC11170947 DOI: 10.1021/acs.biomac.4c00210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 05/06/2024]
Abstract
Polyglycidol or polyglycerol (PG), a polyether widely used in biomedical applications, has not been extensively studied in its branched cyclic form (bcPG), despite extensive research on hyperbranched PG (HPG). This study explores the biomedical promise of bcPG, particularly its ability to cross the blood-brain barrier (BBB). We evaluate in vitro biocompatibility, endothelial permeability, and formation of branched linear PG (blPG) as topological impurities in the presence of water. Small angle X-ray scattering in solution revealed a fractal dimension of approximately two for bcPG and the mixture bc+blPG, suggesting random branching. Comparisons of cytotoxicity and endothelial permeability between bcPG, bc+blPG, and HPG in a BBB model using hCMEC/D3 cells showed different biocompatibility profiles and higher endothelial permeability for HPG. bcPG showed a tendency to accumulate around cell nuclei, in contrast to the behavior of HPG. This study contributes to the understanding of the influence of polymer topology on biological behavior.
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Affiliation(s)
- Carlo
Andrea Pagnacco
- Donostia
International Physics Center (DIPC), Paseo Manuel Lardizábal 4, Donostia−San Sebastián, 20018, Spain
- Centro
de Física de Materiales, CSIC-UPV/EHU, Paseo Manuel Lardizábal 5, Donostia−San Sebastián, 20018, Spain
| | - Marcelo H. Kravicz
- School
of Medicine and Surgery, University of Milano-Bicocca, Milano, 20854, Italy
| | | | - Veronica Fontanini
- School
of Medicine and Surgery, University of Milano-Bicocca, Milano, 20854, Italy
- Department
of Life Sciences, University of Trieste, Trieste, 34127, Italy
| | - Estibaliz González de San Román
- POLYMAT,
Joxe Mari Korta Center, University of the
Basque Country UPV/EHU, Avda. Tolosa 72, Donostia−San Sebastián, 20018, Spain
| | - Reidar Lund
- Department
of Chemistry, University of Oslo, Postboks 1033, Blindern, Oslo, 0315, Norway
- Hylleraas
Centre for Quantum Molecular Sciences, University
of Oslo, Postboks 1033,
Blindern, Oslo, 0315, Norway
| | - Francesca Re
- School
of Medicine and Surgery, University of Milano-Bicocca, Milano, 20854, Italy
| | - Fabienne Barroso-Bujans
- Donostia
International Physics Center (DIPC), Paseo Manuel Lardizábal 4, Donostia−San Sebastián, 20018, Spain
- Centro
de Física de Materiales, CSIC-UPV/EHU, Paseo Manuel Lardizábal 5, Donostia−San Sebastián, 20018, Spain
- IKERBASQUE
- Basque Foundation for Science, Plaza Euskadi 5, Bilbao, 48009, Spain
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2
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Keller C, Kurita-Oyamada H, Grayson SM, Denslow ND. Physical Evidence of Oil Uptake and Toxicity Assessment of Amphiphilic Grafted Nanoparticles Used as Oil Dispersants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:7917-7923. [PMID: 35580268 PMCID: PMC9227714 DOI: 10.1021/acs.est.1c08564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 05/03/2022] [Accepted: 05/05/2022] [Indexed: 06/15/2023]
Abstract
Herein, we report the toxicity evaluation of a new prototype dispersant system, silicon dioxide nanoparticles (NPs) functionalized with (3-glycidoxypropyl)triethoxysilane (GPS) and grafted poly(ε-caprolactone)-block-poly[oligo(ethylene glycol)methyl methacrylate mono-methyl ether] (NP-PCL-POEGMA). This serves as a follow up of our previous study where grafted silicon dioxide NPs functionalized with GPS and grafted hyperbranched poly(glycidol) (NP-HPG) were evaluated for reducing the toxicity in embryo, juvenile, and adult fish populations. In this study, the NP-HPG sample is used as a baseline to compare against the new NP-PCL-POEGMA samples. The relative size was established for three NP-PCL-POEGMA samples via cryogenic transmission electron microscopy. A quantitative mortality study determined that these NPs are non-toxic to embryo populations. An ethoxyresorufin-O-deethylase assay was performed on these NP-PCL-POEGMA samples to test for reduced cytochrome P450 1A after the embryos were exposed to the water-accommodated fraction of crude oil. Overall, these NP-PCL-POEGMA NPs better protected the embryo populations than the previous NP-HPG sample (using a protein activity end point), showing a trend in the right direction for prototype dispersants to replace the commercially utilized Corexit.
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Affiliation(s)
- Christopher
B. Keller
- Department
of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Hajime Kurita-Oyamada
- Department
of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida, Gainesville, Florida 32611, United States
| | - Scott M. Grayson
- Department
of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Nancy D. Denslow
- Department
of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida, Gainesville, Florida 32611, United States
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Ale A, Gutierrez MF, Rossi AS, Bacchetta C, Desimone MF, Cazenave J. Ecotoxicity of silica nanoparticles in aquatic organisms: An updated review. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 87:103689. [PMID: 34144182 DOI: 10.1016/j.etap.2021.103689] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/05/2021] [Accepted: 06/11/2021] [Indexed: 06/12/2023]
Abstract
This review aims to (i) provide a current overview of the main characteristics of SiNP (physical and chemical properties, applications, and emissions), (ii) evaluate the scientific production up to date concerning SiNP, with focus on their toxic effects, through a bibliometric analysis, (iii) describe the main toxic mechanisms of SiNP, (iv) assess the current knowledge about ecotoxicity of SiNP on aquatic organisms (marine and freshwater), and (v) identify the main gaps in the knowledge of SiNP toxicity from an environmentally point of view. The scientific production of SiNP concerning their chemical and physical characteristics has increased exponentially. However, little information is available regarding their ecotoxicity. Particle functionalization is a key factor that reduces SiNP toxicity. Most of the studies employed standard species as test organisms, being the local/native ones poorly represented. Further studies employing long-term exposures and environmentally relevant concentrations are needed to deepen the knowledge about this emergent pollutant.
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Affiliation(s)
- Analía Ale
- Instituto Nacional de Limnología, CONICET-UNL, Paraje El Pozo, Ciudad Universitaria UNL, Santa Fe, Argentina.
| | - María F Gutierrez
- Instituto Nacional de Limnología, CONICET-UNL, Paraje El Pozo, Ciudad Universitaria UNL, Santa Fe, Argentina; Escuela Superior de Sanidad "Dr. Ramón Carrillo" (FBCB-UNL), Ciudad Universitaria, Santa Fe, Argentina
| | - Andrea S Rossi
- Instituto Nacional de Limnología, CONICET-UNL, Paraje El Pozo, Ciudad Universitaria UNL, Santa Fe, Argentina; Facultad de Humanidades y Ciencias, UNL, Paraje El Pozo, Ciudad Universitaria UNL, Santa Fe, Argentina
| | - Carla Bacchetta
- Instituto Nacional de Limnología, CONICET-UNL, Paraje El Pozo, Ciudad Universitaria UNL, Santa Fe, Argentina
| | - Martín F Desimone
- Universidad de Buenos Aires. Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), CONICET, Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina
| | - Jimena Cazenave
- Instituto Nacional de Limnología, CONICET-UNL, Paraje El Pozo, Ciudad Universitaria UNL, Santa Fe, Argentina; Facultad de Humanidades y Ciencias, UNL, Paraje El Pozo, Ciudad Universitaria UNL, Santa Fe, Argentina
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Keller CB, Walley SE, Jarand CW, He J, Ejaz M, Savin DA, Grayson SM. Synthesis of poly(caprolactone)- block-poly[oligo(ethylene glycol)methyl methacrylate] amphiphilic grafted nanoparticles (AGNs) as improved oil dispersants. Polym Chem 2021. [DOI: 10.1039/d1py00418b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Amphiphilic polymers have been covalently grafted from a SiO2 core with room temperature polymerizations. These amphiphilic grafted nanoparticles have been found to uptake up to 30 times their mass in crude oil within a 24 hour window.
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Affiliation(s)
- Christopher B. Keller
- Department of Chemistry, Percival Stern Hall, Tulane University, New Orleans, Louisiana, 70118, USA
| | - Susan E. Walley
- Department of Chemistry, Leigh Hall, University of Florida, Gainesville, Florida 32611, USA
| | - Curtis W. Jarand
- Department of Physics and Engineering Physics, Percival Stern Hall, Tulane University, New Orleans, Louisiana, 70118, USA
| | - Jibao He
- Coordinated Instrument Facility, Percival Stern Hall, Tulane University, New Orleans, Louisiana, 70118, USA
| | - Muhammad Ejaz
- Department of Chemistry, Percival Stern Hall, Tulane University, New Orleans, Louisiana, 70118, USA
| | - Daniel A. Savin
- Department of Chemistry, Leigh Hall, University of Florida, Gainesville, Florida 32611, USA
| | - Scott M. Grayson
- Department of Chemistry, Percival Stern Hall, Tulane University, New Orleans, Louisiana, 70118, USA
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