1
|
Ciobanu V, Roncari F, Ceccone G, Braniste T, Ponti J, Bogni A, Guerrini G, Cassano D, Colpo P, Tiginyanu I. Protein-corona formation on aluminum doped zinc oxide and gallium nitride nanoparticles. J Appl Biomater Funct Mater 2022; 20:22808000221131881. [DOI: 10.1177/22808000221131881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
The interaction of semiconductor nanoparticles with bio-molecules attracts increasing interest of researchers, considering the reactivity of nanoparticles and the possibility to control their properties remotely giving mechanical, thermal, or electrical stimulus to the surrounding bio-environment. This work reports on a systematic comparative study of the protein-corona formation on aluminum doped zinc oxide and gallium nitride nanoparticles. Bovine serum albumin was chosen as a protein model. Dynamic light scattering, transmission electron microscopy and X-ray photoelectron spectroscopy techniques have been used to demonstrate the formation of protein-corona as well as the stability of the colloidal suspension given by BSA, which also works as a surfactant. The protein adsorption on the NPs surface studied by Bradford Assay showed the dependence on the quantity of proteins adsorbed to the available sites on the NPs surface, thus the saturation was observed at ratio higher than 5:1 (NPs:Proteins) in case of ZnO, these correlating with DLS results. Moreover, the kinetics of the proteins showed a relatively fast adsorption on the NPs surface with a saturation curve after about 25 min. GaN NPs, however, showed a very small amount of proteins adsorbed on the surface, a change in the hydrodynamic size being not observable with DLS technique or differential centrifugal sedimentation. The Circular Dichroism analysis suggests a drastic structural change in the secondary structure of the BSA after attaching on the NPs surface. The ZnO nanoparticles adsorb a protein-corona, which does not protect them against dissolution, and in consequence, the material proved to be highly toxic for Human keratinocyte cell line (HaCaT) at concentration above 25 µg/mL. In contrast, the GaN nanoparticles which do not adsorb a protein-corona, show no toxicity signs for HaCaT cells at concentration as high as 50 µg/mL, exhibiting much lower concentration of ions leakage in the culture medium as compared to ZnO nanoparticles.
Collapse
Affiliation(s)
- Vladimir Ciobanu
- National Center for Materials Study and Testing, Technical University of Moldova, Chisinau, Moldova
| | | | - Giacomo Ceccone
- European Commission, Joint Research Center (JRC), Ispra, Italy
| | - Tudor Braniste
- National Center for Materials Study and Testing, Technical University of Moldova, Chisinau, Moldova
| | - Jessica Ponti
- European Commission, Joint Research Center (JRC), Ispra, Italy
| | - Alessia Bogni
- European Commission, Joint Research Center (JRC), Ispra, Italy
| | | | | | - Pascal Colpo
- European Commission, Joint Research Center (JRC), Ispra, Italy
| | - Ion Tiginyanu
- National Center for Materials Study and Testing, Technical University of Moldova, Chisinau, Moldova
- Academy of Sciences of Moldova, Chisinau, Moldova
| |
Collapse
|
2
|
Torres KM, Delgado AS, Serrano ER, Falcón-Cruz NV, Meléndez A, Ramos I, Du D, Oyola R. Gallium nanoparticles as novel inhibitors of Aβ40 aggregation. MATERIALS ADVANCES 2021; 2:5471-5478. [PMID: 34458846 PMCID: PMC8366391 DOI: 10.1039/d1ma00461a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 07/07/2021] [Indexed: 06/13/2023]
Abstract
Alzheimer's disease (AD) has been consistently related to the formation of senile amyloid plaques mainly composed of amyloid β (Aβ) peptides. The toxicity of Aβ aggregates has been indicated to be responsible for AD pathology. One scenario to decrease Aβ toxicity is the development of effective inhibitors against Aβ amyloid formation. In this study, we investigate the effect of gallium nitride nanoparticles (GaN NPs) as inhibitors of Aβ40 amyloid formation using a combination of biophysical approaches. Our results show that the lag phase of Aβ40 aggregation kinetics is significantly retarded by GaN NPs in a concentration dependent manner, implying the activity of GaN NPs in interfering with the formation of the crucial nucleus during Aβ aggregation. Our results also show that GaN NPs can reduce the amyloid fibril elongation rate in the course of the aggregation kinetics. It is speculated that the high polarization characteristics of GaN NPs may provoke a strong interaction between the particles and Aβ40 peptide and in this way decrease self-association of the peptide monomers to form amyloids.
Collapse
Affiliation(s)
- Kyabeth M Torres
- University of Puerto Rico-Humacao, Department of Biology, Call Box 860 Humacao 00792 PR USA
| | - Ambar S Delgado
- University of Puerto Rico-Humacao, Department of Biology, Call Box 860 Humacao 00792 PR USA
| | - Erika R Serrano
- University of Puerto Rico-Humacao, Department of Chemistry, Call Box 860 Humacao 00792 PR USA
| | - Nitza V Falcón-Cruz
- University of Puerto Rico-Humacao, Department of Chemistry, Call Box 860 Humacao 00792 PR USA
| | - Anamaris Meléndez
- University of Puerto Rico-Humacao, Department of Physics & Electronics, Call Box 860 Humacao 00792 PR USA
| | - Idalia Ramos
- University of Puerto Rico-Humacao, Department of Physics & Electronics, Call Box 860 Humacao 00792 PR USA
| | - Deguo Du
- Florida Atlantic University, Department of Chemistry & Biochemistry Boca Raton 33431 FL USA
| | - Rolando Oyola
- University of Puerto Rico-Humacao, Department of Chemistry, Call Box 860 Humacao 00792 PR USA
| |
Collapse
|
3
|
Braniste T, Cobzac V, Ababii P, Plesco I, Raevschi S, Didencu A, Maniuc M, Nacu V, Ababii I, Tiginyanu I. Mesenchymal stem cells proliferation and remote manipulation upon exposure to magnetic semiconductor nanoparticles. ACTA ACUST UNITED AC 2020; 25:e00435. [PMID: 32090026 PMCID: PMC7025179 DOI: 10.1016/j.btre.2020.e00435] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 11/28/2019] [Accepted: 02/10/2020] [Indexed: 12/11/2022]
Abstract
In this paper, we report on spatial redistribution of bone marrow mesenchymal stem cells loaded with magnetic nanoparticles under the influence of continuously applied magnetic field. Semiconductor nanoparticles were synthesized by epitaxial growth of a GaN thin layer on magnetic sacrificial core consisting of ZnFe2O4 nanoparticles. Different quantities of nanoparticles were incubated in vitro with mesenchymal stem cells. High density of nanoparticles (50 μg/ml) leads to a decrease in the number of cells during incubation, while the density of nanoparticles as low as 10 μg/ml is enough to drag cells in culture and rearrange them according to the spatial distribution of the magnetic field intensity.
Collapse
Affiliation(s)
- Tudor Braniste
- National Center for Materials Study and Testing. Technical University of Moldova, Stefan cel Mare av. 168, Chisinau, 2004, Republic of Moldova
- Corresponding authors at: National Center for Materials Study and Testing. Technical University of Moldova, Stefan cel Mare av. 168, Chisinau, 2004, Republic of Moldova.
| | - Vitalie Cobzac
- Laboratory of Tissue Engineering and Cells Cultures. State University of Medicine and Pharmacy “Nicolae Testemiteanu”, Stefan cel Mare av. 165, Chisinau, 2004, Republic of Moldova
| | - Polina Ababii
- Department of Otorhinolaryngology. State University of Medicine and Pharmacy “Nicolae Testemiteanu”, Stefan cel Mare av. 165, Chisinau, 2004, Republic of Moldova
| | - Irina Plesco
- National Center for Materials Study and Testing. Technical University of Moldova, Stefan cel Mare av. 168, Chisinau, 2004, Republic of Moldova
| | - Simion Raevschi
- Department of Physics and Engineering, State University of Moldova, Alexei Mateevici str. 60, Chisinau, 2009, Republic of Moldova
| | - Alexandru Didencu
- Department of Otorhinolaryngology. State University of Medicine and Pharmacy “Nicolae Testemiteanu”, Stefan cel Mare av. 165, Chisinau, 2004, Republic of Moldova
| | - Mihail Maniuc
- Department of Otorhinolaryngology. State University of Medicine and Pharmacy “Nicolae Testemiteanu”, Stefan cel Mare av. 165, Chisinau, 2004, Republic of Moldova
| | - Viorel Nacu
- Laboratory of Tissue Engineering and Cells Cultures. State University of Medicine and Pharmacy “Nicolae Testemiteanu”, Stefan cel Mare av. 165, Chisinau, 2004, Republic of Moldova
| | - Ion Ababii
- Department of Otorhinolaryngology. State University of Medicine and Pharmacy “Nicolae Testemiteanu”, Stefan cel Mare av. 165, Chisinau, 2004, Republic of Moldova
| | - Ion Tiginyanu
- National Center for Materials Study and Testing. Technical University of Moldova, Stefan cel Mare av. 168, Chisinau, 2004, Republic of Moldova
- Academy of Sciences of Moldova, Stefan cel Mare av. 1, Chisinau, 2001, Republic of Moldova
- Corresponding authors at: National Center for Materials Study and Testing. Technical University of Moldova, Stefan cel Mare av. 168, Chisinau, 2004, Republic of Moldova.
| |
Collapse
|