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Moglianetti M, Solla-Gullón J, Donati P, Pedone D, Debellis D, Sibillano T, Brescia R, Giannini C, Montiel V, Feliu JM, Pompa PP. Citrate-Coated, Size-Tunable Octahedral Platinum Nanocrystals: A Novel Route for Advanced Electrocatalysts. ACS Appl Mater Interfaces 2018; 10:41608-41617. [PMID: 30404443 DOI: 10.1021/acsami.8b11774] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The development of green and scalable syntheses for the preparation of size- and shape-controlled metal nanocrystals is of high interest in many areas, including catalysis, electrocatalysis, nanomedicine, and electronics. In this work, a new synthetic approach based on the synergistic action of physical parameters and reagents produces size-tunable octahedral Pt nanocrystals, without the use of catalyst-poisoning reagents and/or difficult-to-remove coatings. The synthesis requires sodium citrate, ascorbic acid, and fine control of the reduction rate in aqueous environment. Pt octahedral nanocrystals with particle size as low as 7 nm and highly developed {111} facets have been achieved, as demonstrated by transmission electron microscopy, X-ray diffraction, and electrochemical methods. The absence of sticky molecules together with the high quality of the surface makes these nanocrystals ideal candidates in electrocatalysis. Notably, 7 nm bismuth-decorated octahedral nanocrystals exhibit superior performance for the electrooxidation of formic acid in terms of both specific and mass activities.
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Affiliation(s)
- Mauro Moglianetti
- Nanobiointeractions & Nanodiagnostics, Center for Bio-Molecular Nanotechnologies , Istituto Italiano di Tecnologia , Via Barsanti , 73010 Arnesano , Lecce , Italy
| | - José Solla-Gullón
- Institute of Electrochemistry , University of Alicante , Apdo. 99 , E-03080 Alicante , Spain
| | - Paolo Donati
- Nanobiointeractions & Nanodiagnostics, Center for Bio-Molecular Nanotechnologies , Istituto Italiano di Tecnologia , Via Barsanti , 73010 Arnesano , Lecce , Italy
| | - Deborah Pedone
- Nanobiointeractions & Nanodiagnostics, Center for Bio-Molecular Nanotechnologies , Istituto Italiano di Tecnologia , Via Barsanti , 73010 Arnesano , Lecce , Italy
- Department of Engineering for Innovation , University of Salento , Via per Monteroni , 73100 Lecce , Italy
| | - Doriana Debellis
- Electron Microscopy Facility , Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy
| | - Teresa Sibillano
- Institute of Crystallography, National Research Council (IC-CNR) , Via Amendola 122/O , 70126 Bari , Italy
| | - Rosaria Brescia
- Electron Microscopy Facility , Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy
| | - Cinzia Giannini
- Institute of Crystallography, National Research Council (IC-CNR) , Via Amendola 122/O , 70126 Bari , Italy
| | - Vicente Montiel
- Institute of Electrochemistry , University of Alicante , Apdo. 99 , E-03080 Alicante , Spain
| | - Juan M Feliu
- Institute of Electrochemistry , University of Alicante , Apdo. 99 , E-03080 Alicante , Spain
| | - Pier Paolo Pompa
- Nanobiointeractions & Nanodiagnostics, Center for Bio-Molecular Nanotechnologies , Istituto Italiano di Tecnologia , Via Barsanti , 73010 Arnesano , Lecce , Italy
- Nanobiointeractions & Nanodiagnostics , Istituto Italiano di Tecnologia (IIT) , Via Morego, 30 , 16163 Genova , Italy
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52
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De Luca E, Pedone D, Moglianetti M, Pulcini D, Perrelli A, Retta SF, Pompa PP. Multifunctional Platinum@BSA-Rapamycin Nanocarriers for the Combinatorial Therapy of Cerebral Cavernous Malformation. ACS Omega 2018; 3:15389-15398. [PMID: 30556006 PMCID: PMC6288776 DOI: 10.1021/acsomega.8b01653] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 10/24/2018] [Indexed: 05/20/2023]
Abstract
Platinum nanoparticles (PtNPs) are antioxidant enzyme-mimetic nanomaterials with significant potential for the treatment of complex diseases related to oxidative stress. Among such diseases, Cerebral Cavernous Malformation (CCM) is a major cerebrovascular disorder of genetic origin, which affects at least 0.5% of the general population. Accumulated evidence indicates that loss-of-function mutations of the three known CCM genes predispose endothelial cells to oxidative stress-mediated dysfunctions by affecting distinct redox-sensitive signaling pathways and mechanisms, including pro-oxidant and antioxidant pathways and autophagy. A multitargeted combinatorial therapy might thereby represent a promising strategy for the effective treatment of this disease. Herein, we developed a multifunctional nanocarrier by combining the radical scavenging activity of PtNPs with the autophagy-stimulating activity of rapamycin (Rapa). Our results show that the combinatorial targeting of redox signaling and autophagy dysfunctions is effective in rescuing major molecular and cellular hallmarks of CCM disease, suggesting its potential for the treatment of this and other oxidative stress-related diseases.
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Affiliation(s)
- Elisa De Luca
- Nanobiointeractions
& Nanodiagnostics, Center for Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia, Via Barsanti 14, Arnesano Lecce 73010, Italy
| | - Deborah Pedone
- Nanobiointeractions
& Nanodiagnostics, Center for Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia, Via Barsanti 14, Arnesano Lecce 73010, Italy
- Department
of Engineering for Innovation, University
of Salento, Via per Monteroni, Lecce 73100, Italy
| | - Mauro Moglianetti
- Nanobiointeractions
& Nanodiagnostics, Center for Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia, Via Barsanti 14, Arnesano Lecce 73010, Italy
| | - Daniele Pulcini
- Nanobiointeractions
& Nanodiagnostics, Center for Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia, Via Barsanti 14, Arnesano Lecce 73010, Italy
| | - Andrea Perrelli
- Department
of Clinical and Biological Sciences, University
of Torino, Regione Gonzole
10, Orbassano (Torino) 10043, Italy
- CCM
Italia Research NetworkUniversity of Torino, Regione Gonzole 10, Orbassano (Torino) 10043, Italy
| | - Saverio Francesco Retta
- Department
of Clinical and Biological Sciences, University
of Torino, Regione Gonzole
10, Orbassano (Torino) 10043, Italy
- CCM
Italia Research NetworkUniversity of Torino, Regione Gonzole 10, Orbassano (Torino) 10043, Italy
- E-mail: . Web: www.ccmitalia.unito.it (S.F.R.)
| | - Pier Paolo Pompa
- Nanobiointeractions
& Nanodiagnostics, Center for Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia, Via Barsanti 14, Arnesano Lecce 73010, Italy
- Nanobiointeractions
& Nanodiagnostics, Istituto Italiano
di Tecnologia, Via Morego
30, Genova 16163, Italy
- E-mail: (P.P.P.)
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53
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Jaroenram W, Cecere P, Pompa PP. Xylenol orange-based loop-mediated DNA isothermal amplification for sensitive naked-eye detection of Escherichia coli. J Microbiol Methods 2018; 156:9-14. [PMID: 30502368 DOI: 10.1016/j.mimet.2018.11.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 11/28/2018] [Indexed: 12/12/2022]
Abstract
Loop-mediated isothermal amplification (LAMP) can amplify DNA specifically and sensitively. Under minimal buffering conditions, it produces hydrogen ions that lower the pH of the solution upon DNA amplification. This characteristic was applied to visually detect amplified DNA of Escherichia coli through the use of Xylenol Orange, a pH-dependent dye. Under the optimal conditions, 120 min at 63 °C, the Xylenol orange-dependent colorimetric LAMP revealed a detection limit as low as 1 CFU, namely 100,000 times more sensitive than typical multiplex PCR, and showed no cross-reactions with other foodborne pathogens. The colorimetric assay was successfully exploited to detect E. coli contaminations in milk samples, showing high reliability and the same high sensitivity with naked-eye readout. Together with robustness, simplicity, and visual detectability of amplification, this assay can serve as an alternative tool to PCR for detecting E. coli, which is suitable for both laboratory and on-field applications.
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Affiliation(s)
- Wansadaj Jaroenram
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego 30, Genova 16163, Italy
| | - Paola Cecere
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego 30, Genova 16163, Italy
| | - Pier Paolo Pompa
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego 30, Genova 16163, Italy.
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Ponzoni M, Curnis F, Brignole C, Bruno S, Guarnieri D, Sitia L, Marotta R, Sacchi A, Bauckneht M, Buschiazzo A, Rossi A, Di Paolo D, Perri P, Gori A, Sementa AR, Emionite L, Cilli M, Tamma R, Ribatti D, Pompa PP, Marini C, Sambuceti G, Corti A, Pastorino F. Enhancement of Tumor Homing by Chemotherapy-Loaded Nanoparticles. Small 2018; 14:e1802886. [PMID: 30294852 DOI: 10.1002/smll.201802886] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 09/14/2018] [Indexed: 06/08/2023]
Abstract
Targeted delivery of anticancer drugs with nanocarriers can reduce side effects and ameliorate therapeutic efficacy. However, poorly perfused and dysfunctional tumor vessels limit the transport of the payload into solid tumors. The use of tumor-penetrating nanocarriers might enhance tumor uptake and antitumor effects. A peptide containing a tissue-penetrating (TP) consensus motif, capable of recognizing neuropilin-1, is here fused to a neuroblastoma-targeting peptide (pep) previously developed. Neuroblastoma cell lines and cells derived from both xenografts and high-risk neuroblastoma patients show overexpression of neuropilin-1. In vitro studies reveal that TP-pep binds cell lines and cells derived from neuroblastoma patients more efficiently than pep. TP-pep, after coupling to doxorubicin-containing stealth liposomes (TP-pep-SL[doxorubicin]), enhances their uptake by cells and cytotoxic effects in vitro, while increasing tumor-binding capability and homing in vivo. TP-pep-SL[doxorubicin] treatment enhances the Evans Blue dye accumulation in tumors but not in nontumor tissues, pointing to selective increase of vascular permeability in tumor tissues. Compared to pep-SL[doxorubicin], TP-pep-SL[doxorubicin] shows an increased antineuroblastoma activity in three neuroblastoma animal models mimicking the growth of neuroblastoma in humans. The enhancement of drug penetration in tumors by TP-pep-targeted nanoparticles may represent an innovative strategy for neuroblastoma.
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Affiliation(s)
- Mirco Ponzoni
- Laboratory of Experimental Therapy in Oncology, IRCCS Istituto Giannina Gaslini, Via G. Gaslini 5, 16147, Genoa, Italy
| | - Flavio Curnis
- IRCCS San Raffaele Scientific Institute and Vita Salute San Raffaele University, 16132, Milan, Italy
| | - Chiara Brignole
- Laboratory of Experimental Therapy in Oncology, IRCCS Istituto Giannina Gaslini, Via G. Gaslini 5, 16147, Genoa, Italy
| | - Silvia Bruno
- Department of Experimental Medicine, University of Genoa, 16132, Genoa, Italy
| | - Daniela Guarnieri
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), 16163, Genoa, Italy
| | - Leopoldo Sitia
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), 16163, Genoa, Italy
| | - Roberto Marotta
- Electron Microscopy Laboratory, Nanochemistry Department, Istituto Italiano di Tecnologia (IIT), 16163, Genoa, Italy
| | - Angelina Sacchi
- IRCCS San Raffaele Scientific Institute and Vita Salute San Raffaele University, 16132, Milan, Italy
| | - Matteo Bauckneht
- Nuclear Medicine, Department of Health Sciences (DISSAL), University of Genoa, 16132, Genoa, Italy
| | - Ambra Buschiazzo
- Nuclear Medicine, Department of Health Sciences (DISSAL), University of Genoa, 16132, Genoa, Italy
| | - Andrea Rossi
- Department of Pathology, IRCCS Istituto Giannina Gaslini, 16147, Genoa, Italy
| | - Daniela Di Paolo
- Laboratory of Experimental Therapy in Oncology, IRCCS Istituto Giannina Gaslini, Via G. Gaslini 5, 16147, Genoa, Italy
| | - Patrizia Perri
- Laboratory of Experimental Therapy in Oncology, IRCCS Istituto Giannina Gaslini, Via G. Gaslini 5, 16147, Genoa, Italy
| | - Alessandro Gori
- Dipartimento di Scienze Chimiche e Tecnologie dei Materiali, Istituto di Chimica del Riconoscimento Molecolare, Consiglio Nazionale delle Ricerche, 20131, Milan, Italy
| | - Angela R Sementa
- Department of Pathology, IRCCS Istituto Giannina Gaslini, 16147, Genoa, Italy
| | - Laura Emionite
- Animal Facility, IRCSS Ospedale Policlinico San Martino, 16132, Genoa, Italy
| | - Michele Cilli
- Animal Facility, IRCSS Ospedale Policlinico San Martino, 16132, Genoa, Italy
| | - Roberto Tamma
- Department of Basic Medical Sciences, Neurosciences, and Sensory Organs, University of Bari Medical School, 70124, Bari, Italy
| | - Domenico Ribatti
- Department of Basic Medical Sciences, Neurosciences, and Sensory Organs, University of Bari Medical School, 70124, Bari, Italy
| | - Pier Paolo Pompa
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), 16163, Genoa, Italy
| | - Cecilia Marini
- Nuclear Medicine, IRCCS Ospedale Policlinico San Martino, 16131, Genoa, Italy
- CNR Institute of Molecular Bioimaging and Physiology, 20133, Milan, Italy
| | - Gianmario Sambuceti
- Nuclear Medicine, Department of Health Sciences (DISSAL), University of Genoa, 16132, Genoa, Italy
- Nuclear Medicine, IRCCS Ospedale Policlinico San Martino, 16131, Genoa, Italy
| | - Angelo Corti
- IRCCS San Raffaele Scientific Institute and Vita Salute San Raffaele University, 16132, Milan, Italy
| | - Fabio Pastorino
- Laboratory of Experimental Therapy in Oncology, IRCCS Istituto Giannina Gaslini, Via G. Gaslini 5, 16147, Genoa, Italy
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55
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Turco A, Moglianetti M, Corvaglia S, Rella S, Catelani T, Marotta R, Malitesta C, Pompa PP. Sputtering-Enabled Intracellular X-ray Photoelectron Spectroscopy: A Versatile Method To Analyze the Biological Fate of Metal Nanoparticles. ACS Nano 2018; 12:7731-7740. [PMID: 30004662 DOI: 10.1021/acsnano.8b01612] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The investigation of the toxicological profile and biomedical potential of nanoparticles (NPs) requires a deep understanding of their intracellular fate. Various techniques are usually employed to characterize NPs upon cellular internalization, including high-resolution optical and electron microscopies. Here, we show a versatile method, named sputtering-enabled intracellular X-ray photoelectron spectroscopy, proving that it is able to provide valuable information about the behavior of metallic NPs in culture media as well as within cells, directly measuring their internalization, stability/degradation, and oxidation state, without any preparative steps. The technique can also provide nanoscale vertical resolution along with semiquantitative information about the cellular internalization of the metallic species. The proposed approach is easy-to-use and can become a standard technique in nanotoxicology/nanomedicine and in the rational design of metallic NPs. Two model cases were investigated: silver nanoparticles (AgNPs) and platinum nanoparticles (PtNPs) with the same size and coating. We observed that, after 48 h incubation, intracellular AgNPs were almost completely dissolved, forming nanoclusters as well as AgO, AgS, and AgCl complexes. On the other hand, PtNPs were resistant to the harsh endolysosomal environment, and only some surface oxidation was detected after 48 h.
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Affiliation(s)
- Antonio Turco
- Dipartimento di Scienze e Tecnologie Biologiche e Ambientali (Di.S.Te.B.A.) , Università del Salento , via Monteroni , 73100 Lecce , Italy
| | - Mauro Moglianetti
- Nanobiointeractions and Nanodiagnostics, Center for Biomolecular Nanotechnologies , Istituto Italiano di Tecnologia , via Barsanti , 73010 Arnesano, Lecce , Italy
| | - Stefania Corvaglia
- Nanobiointeractions and Nanodiagnostics, Center for Biomolecular Nanotechnologies , Istituto Italiano di Tecnologia , via Barsanti , 73010 Arnesano, Lecce , Italy
| | - Simona Rella
- Dipartimento di Scienze e Tecnologie Biologiche e Ambientali (Di.S.Te.B.A.) , Università del Salento , via Monteroni , 73100 Lecce , Italy
| | | | | | - Cosimino Malitesta
- Dipartimento di Scienze e Tecnologie Biologiche e Ambientali (Di.S.Te.B.A.) , Università del Salento , via Monteroni , 73100 Lecce , Italy
| | - Pier Paolo Pompa
- Nanobiointeractions and Nanodiagnostics, Center for Biomolecular Nanotechnologies , Istituto Italiano di Tecnologia , via Barsanti , 73010 Arnesano, Lecce , Italy
- Istituto Italiano di Tecnologia , Nanobiointeractions and Nanodiagnostics , via Morego 30 , 16163 Genova , Italy
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56
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Magrì D, Sánchez-Moreno P, Caputo G, Gatto F, Veronesi M, Bardi G, Catelani T, Guarnieri D, Athanassiou A, Pompa PP, Fragouli D. Laser Ablation as a Versatile Tool To Mimic Polyethylene Terephthalate Nanoplastic Pollutants: Characterization and Toxicology Assessment. ACS Nano 2018; 12:7690-7700. [PMID: 29944342 DOI: 10.1021/acsnano.8b01331] [Citation(s) in RCA: 135] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The presence of micro- and nanoplastics in the marine environment is raising strong concerns since they can possibly have a negative impact on human health. In particular, the lack of appropriate methodologies to collect the nanoplastics from water systems imposes the use of engineered model nanoparticles to explore their interactions with biological systems, with results not easily correlated with the real case conditions. In this work, we propose a reliable top-down approach based on laser ablation of polymers to form polyethylene terephthalate (PET) nanoplastics, which mimic real environmental nanopollutants, unlike synthetic samples obtained by colloidal chemistry. PET nanoparticles were carefully characterized in terms of chemical/physical properties and stability in different media. The nanoplastics have a ca. 100 nm average dimension, with significant size and shape heterogeneity, and they present weak acid groups on their surface, similarly to photodegraded PET plastics. Despite no toxic effects emerging by in vitro studies on human Caco-2 intestinal epithelial cells, the formed nanoplastics were largely internalized in endolysosomes, showing intracellular biopersistence and long-term stability in a simulated lysosomal environment. Interestingly, when tested on a model of intestinal epithelium, nano-PET showed high propensity to cross the gut barrier, with unpredictable long-term effects on health and potential transport of dispersed chemicals mediated by the nanopollutants.
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Affiliation(s)
- Davide Magrì
- Smart Materials , Istituto Italiano di Tecnologia , Via Morego, 30 , 16163 Genova , Italy
- Department of Informatics, Bioengineering, Robotics and Systems Engineering , University of Genova , Via All'Opera Pia, 13 , 16145 Genova , Italy
| | - Paola Sánchez-Moreno
- Nanobiointeractions & Nanodiagnostics , Istituto Italiano di Tecnologia , Via Morego, 30 , 16163 Genova , Italy
| | - Gianvito Caputo
- Smart Materials , Istituto Italiano di Tecnologia , Via Morego, 30 , 16163 Genova , Italy
| | - Francesca Gatto
- Nanobiointeractions & Nanodiagnostics , Istituto Italiano di Tecnologia , Via Morego, 30 , 16163 Genova , Italy
- Department of Engineering for Innovation , University of Salento , Via per Monteroni , 73100 Lecce , Italy
| | - Marina Veronesi
- D3-PharmaChemistry , Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy
| | - Giuseppe Bardi
- Nanobiointeractions & Nanodiagnostics , Istituto Italiano di Tecnologia , Via Morego, 30 , 16163 Genova , Italy
| | - Tiziano Catelani
- Electron Microscopy Facility , Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy
| | - Daniela Guarnieri
- Nanobiointeractions & Nanodiagnostics , Istituto Italiano di Tecnologia , Via Morego, 30 , 16163 Genova , Italy
| | - Athanassia Athanassiou
- Smart Materials , Istituto Italiano di Tecnologia , Via Morego, 30 , 16163 Genova , Italy
| | - Pier Paolo Pompa
- Nanobiointeractions & Nanodiagnostics , Istituto Italiano di Tecnologia , Via Morego, 30 , 16163 Genova , Italy
| | - Despina Fragouli
- Smart Materials , Istituto Italiano di Tecnologia , Via Morego, 30 , 16163 Genova , Italy
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57
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Ponzoni M, Brignole C, Emionite L, Bruno S, Guarnieri D, Sitia L, Bauckneht M, Buschiazzo A, Rossi A, Paolo DD, Perri P, Curnis F, Gori A, Sementa AR, Cilli M, Pompa PP, Sambuceti G, Corti A, Pastorino F. Abstract 3879: Enhancement of tumor penetration by drug-loaded nanoparticles: An innovative targeted strategy for neuroblastoma. Cancer Res 2018. [DOI: 10.1158/1538-7445.am2018-3879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Anti-cancer drugs-loaded targeted nanocarriers can reduce side-effects and improve therapeutic efficacy in preclinical studies. However, poorly perfused and dysfunctional tumour vessels limit the transport of the payload into the parenchyma of solid tumours. The use of tumour-penetrating nanocarriers might enhance tumour penetration and anti-tumour effects.
Methods: A consensus motif, mediator of tissue penetration (TP) was added to a previously characterized neuroblastoma (NB)-targeting peptide (pep). In vitro NB cell association and internalization of TP-pep, either free or coupled to Stealth Liposomes (SL), were tested by FACS and confocal microscopy. In vitro cytotoxic potential of a novel doxorubicin (DXR)-loaded liposomal (TP-pep-SL[DXR]) was evaluated by MTS assay. Three mouse xenograft models mimicking the growth and spread of NB in humans (injection routes: subcutaneous; adrenal gland; tail vein) were enrolled to examine in vivo penetration, vascular permeability, tumour glucose consumption and sensitivity in response to TP-pep-SL[DXR].
Results: Compared to pep, TP-pep increases its cellular association in vitro on cell lines and cells derived from NB patients. When coupled to SL, TP-pep enhances liposomes penetration and cytotoxic effects in vitro and increases binding and penetration in a mouse model of NB. Moreover, in vivo accumulation of Evans Blue dye within the tumour mass reveals that TP-pep-SL[DXR] increases the tumour vascular permeability into NB tumour mass, but not in non-tumour tissues. Compared to pep-targeted liposomes, TP-pep-SL[DXR] leads to an increased anti-NB effect towards all the animal models tested.
Conclusion: Our findings demonstrate that the enhancement of tumour penetration by drug-loaded nanoparticles might represent an innovative targeted strategy for NB.
Citation Format: Mirco Ponzoni, Chiara Brignole, Laura Emionite, Silvia Bruno, Daniela Guarnieri, Leopoldo Sitia, Matteo Bauckneht, Ambra Buschiazzo, Andrea Rossi, Daniela Di Paolo, Patrizia Perri, Flavio Curnis, Alessandro Gori, Angela Rita Sementa, Michele Cilli, Pier Paolo Pompa, Gianmario Sambuceti, Angelo Corti, Fabio Pastorino. Enhancement of tumor penetration by drug-loaded nanoparticles: An innovative targeted strategy for neuroblastoma [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr 3879.
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Affiliation(s)
| | | | | | | | | | | | - Matteo Bauckneht
- 5IRCSS Ospedale Policlinico San Martino, University of Genova, Genoa, Italy
| | - Ambra Buschiazzo
- 5IRCSS Ospedale Policlinico San Martino, University of Genova, Genoa, Italy
| | | | | | | | - Flavio Curnis
- 6IRCCS San Raffaele Scientific Institute and Vita Salute San Raffaele University, Milan, Italy
| | - Alessandro Gori
- 7Istituto di Chimica del Riconoscimento Molecolare, Consiglio Nazionale delle Ricerche, Italy
| | | | - Michele Cilli
- 2IRCSS Ospedale Policlinico San Martino, Genoa, Italy
| | | | | | - Angelo Corti
- 6IRCCS San Raffaele Scientific Institute and Vita Salute San Raffaele University, Milan, Italy
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58
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Guarnieri D, Sánchez-Moreno P, Del Rio Castillo AE, Bonaccorso F, Gatto F, Bardi G, Martín C, Vázquez E, Catelani T, Sabella S, Pompa PP. Biotransformation and Biological Interaction of Graphene and Graphene Oxide during Simulated Oral Ingestion. Small 2018; 14:e1800227. [PMID: 29756263 DOI: 10.1002/smll.201800227] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 03/13/2018] [Indexed: 05/09/2023]
Abstract
The biotransformation and biological impact of few layer graphene (FLG) and graphene oxide (GO) are studied, following ingestion as exposure route. An in vitro digestion assay based on a standardized operating procedure (SOP) is exploited. The assay simulates the human ingestion of nanomaterials during their dynamic passage through the different environments of the gastrointestinal tract (salivary, gastric, intestinal). Physical-chemical changes of FLG and GO during digestion are assessed by Raman spectroscopy. Moreover, the effect of chronic exposure to digested nanomaterials on integrity and functionality of an in vitro model of intestinal barrier is also determined according to a second SOP. These results show a modulation of the aggregation state of FLG and GO nanoflakes after experiencing the complex environments of the different digestive compartments. In particular, chemical doping effects are observed due to FLG and GO interaction with digestive juice components. No structural changes/degradation of the nanomaterials are detected, suggesting that they are biopersistent when administered by oral route. Chronic exposure to digested graphene does not affect intestinal barrier integrity and is not associated with inflammation and cytotoxicity, though possible long-term adverse effects cannot be ruled out.
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Affiliation(s)
- Daniela Guarnieri
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego, 30, 16163, Genova, Italy
| | - Paola Sánchez-Moreno
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego, 30, 16163, Genova, Italy
| | | | - Francesco Bonaccorso
- Graphene Labs, Istituto Italiano di Tecnologia, Via Morego, 30, 16136, Genova, Italy
| | - Francesca Gatto
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego, 30, 16163, Genova, Italy
- Department of Engineering for Innovation, University of Salento, 73100, Lecce, Italy
| | - Giuseppe Bardi
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego, 30, 16163, Genova, Italy
| | - Cristina Martín
- Departamento de Química Orgánica, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, 13071, Ciudad Real, Spain
- Instituto Regional de Investigación Científica Aplicada (IRICA), Universidad de Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Ester Vázquez
- Departamento de Química Orgánica, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, 13071, Ciudad Real, Spain
- Instituto Regional de Investigación Científica Aplicada (IRICA), Universidad de Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Tiziano Catelani
- Electron Microscopy Facility, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Stefania Sabella
- Drug Discovery and Development Department, Istituto Italiano di Tecnologia, Via Morego, 30, 16136, Genova, Italy
| | - Pier Paolo Pompa
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego, 30, 16163, Genova, Italy
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Trusel M, Baldrighi M, Marotta R, Gatto F, Pesce M, Frasconi M, Catelani T, Papaleo F, Pompa PP, Tonini R, Giordani S. Internalization of Carbon Nano-onions by Hippocampal Cells Preserves Neuronal Circuit Function and Recognition Memory. ACS Appl Mater Interfaces 2018; 10:16952-16963. [PMID: 29669213 DOI: 10.1021/acsami.7b17827] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
One area where nanomedicine may offer superior performances and efficacy compared to current strategies is in the diagnosis and treatment of central nervous system (CNS) diseases. However, the application of nanomaterials in such complex arenas is still in its infancy and an optimal vector for the therapy of CNS diseases has not been identified. Graphitic carbon nano-onions (CNOs) represent a class of carbon nanomaterials that shows promising potential for biomedical purposes. To probe the possible applications of graphitic CNOs as a platform for therapeutic and diagnostic interventions on CNS diseases, fluorescently labeled CNOs were stereotaxically injected in vivo in mice hippocampus. Their diffusion within brain tissues and their cellular localization were analyzed ex vivo by confocal microscopy, electron microscopy, and correlative light-electron microscopy techniques. The subsequent fluorescent staining of hippocampal cells populations indicates they efficiently internalize the nanomaterial. Furthermore, the inflammatory potential of the CNOs injection was found comparable to sterile vehicle infusion, and it did not result in manifest neurophysiological and behavioral alterations of hippocampal-mediated functions. These results clearly demonstrate that CNOs can interface effectively with several cell types, which encourages further their development as possible brain disease-targeted diagnostics or therapeutics nanocarriers.
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Affiliation(s)
- Massimo Trusel
- Neuroscience and Brain Technology , Istituto Italiano di Tecnologia , via Morego 30 , Genova , Italy
| | - Michele Baldrighi
- Nano Carbon Materials , Istituto Italiano di Tecnologia , via Morego 30 , Genova , Italy
| | - Roberto Marotta
- Electron Microscopy Laboratory , Istituto Italiano di Tecnologia , via Morego 30 , Genova , Italy
| | - Francesca Gatto
- Nanobiointeractions & Nanodiagnostics , Istituto Italiano di Tecnologia , via Morego 30 , Genova , Italy
- Department of Engineering for Innovation , University of Salento , Via per Monteroni , Lecce , Italy
| | - Mattia Pesce
- Neuroscience and Brain Technology , Istituto Italiano di Tecnologia , via Morego 30 , Genova , Italy
| | - Marco Frasconi
- Nano Carbon Materials , Istituto Italiano di Tecnologia , via Morego 30 , Genova , Italy
| | - Tiziano Catelani
- Electron Microscopy Laboratory , Istituto Italiano di Tecnologia , via Morego 30 , Genova , Italy
| | - Francesco Papaleo
- Neuroscience and Brain Technology , Istituto Italiano di Tecnologia , via Morego 30 , Genova , Italy
| | - Pier Paolo Pompa
- Nanobiointeractions & Nanodiagnostics , Istituto Italiano di Tecnologia , via Morego 30 , Genova , Italy
| | - Raffaella Tonini
- Neuroscience and Brain Technology , Istituto Italiano di Tecnologia , via Morego 30 , Genova , Italy
| | - Silvia Giordani
- Nano Carbon Materials , Istituto Italiano di Tecnologia , via Morego 30 , Genova , Italy
- Department of Chemistry , University of Turin , Via Giuria 7 , Turin , Italy
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Pinto J, Magrì D, Valentini P, Palazon F, Heredia-Guerrero JA, Lauciello S, Barroso-Solares S, Ceseracciu L, Pompa PP, Athanassiou A, Fragouli D. Antibacterial Melamine Foams Decorated with in Situ Synthesized Silver Nanoparticles. ACS Appl Mater Interfaces 2018; 10:16095-16104. [PMID: 29688691 DOI: 10.1021/acsami.8b01442] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A new and straightforward single-step route to decorate melamine foams with silver nanoparticles (ME/Ag) is proposed. Uniform coatings of silver nanoparticles with diameters less than 10 nm are formed in situ directly on the struts surface of the foams, after their dipping in an AgNO3 solution. We prove that the nanoparticles are stably adhered on the foams, and that their amount can be directly controlled by the concentration of the AgNO3 solution and the dipping time. Following this production route, ME/Ag foams can be obtained with silver content ranging between 0.2 and 18.6 wt % and excellent antibacterial performance, making them appropriate for various applications. Herein we explore the possibility to use them as antibacterial filters for water treatment, proving that they are able to remove completely Escherichia coli bacteria from water when filtered at flow rates up to 100 mL/h·cm2 due to the release of less than 1 ppm of Ag+ ions by the foams. No bacterial regrowth was observed after further dilution of the treated water, to arrive below the safety threshold of Ag+ for drinking water (0.1 ppm), demonstrating the excellent bactericide performance of the ME/Ag filters.
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Abstract
Oxidative stress-dependent inflammatory diseases represent a major concern for the population's health worldwide. Biocompatible nanomaterials with enzymatic properties could play a crucial role in the treatment of such pathologies. In this respect, platinum nanoparticles (PtNPs) are promising candidates, showing remarkable catalytic activity, able to reduce the intracellular reactive oxygen species (ROS) levels and impair the downstream pathways leading to inflammation. This review reports a critical overview of the growing evidence revealing the anti-inflammatory ability of PtNPs and their potential applications in nanomedicine. It provides a detailed description of the wide variety of synthetic methods recently developed, with particular attention to the aspects influencing biocompatibility. Special attention has been paid to the studies describing the toxicological profile of PtNPs with an attempt to draw critical conclusions. The emerging picture suggests that the material per se is not causing cytotoxicity, while other physicochemical features related to the synthesis and surface functionalization may play a crucial role in determining the observed impairment of cellular functions. The enzymatic activity of PtNPs is also summarized, analyzing their action against ROS produced by pathological conditions within the cells. In particular, we extensively discuss the potential of these properties in nanomedicine to down-regulate inflammatory pathways or to be employed as diagnostic tools with colorimetric readout. A brief overview of other biomedical applications of nanoplatinum is also presented.
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Affiliation(s)
- Deborah Pedone
- Istituto Italiano di Tecnologia, Nanobiointeractions & Nanodiagnostics, Via Morego 30, 16163 Genova, Italy.
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Pietroiusti A, Vecchione L, Malvindi MA, Aru C, Massimiani M, Camaioni A, Magrini A, Bernardini R, Sabella S, Pompa PP, Campagnolo L. Relevance to investigate different stages of pregnancy to highlight toxic effects of nanoparticles: The example of silica. Toxicol Appl Pharmacol 2018; 342:60-68. [PMID: 29407774 DOI: 10.1016/j.taap.2018.01.026] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 01/27/2018] [Accepted: 01/29/2018] [Indexed: 11/26/2022]
Abstract
Amorphous silica nanoparticles (SiO2NPs) have been recognized as safe nanomaterial, hence their use in biomedical applications has been explored. Data, however, suggest potential toxicity of SiO2 NPs in pregnant individuals. However, no studies relating nanoparticle biokinetic/toxicity to the different gestational stages are currently available. In this respect, we have investigated the possible embryotoxic effects of three-size and two-surface functionalization SiO2NPs in mice. After intravenous administration of different concentrations at different stages of pregnancy, clinical and histopathological evaluations, performed close to parturition, did not show signs of maternal toxicity, nor effects on placental/fetal development, except for amino-functionalized 25 nm NPs. Biodistribution was studied by ICP-AES 24 h after administration, and demonstrates that all particles distributed to placenta and conceptuses/fetuses, although size, surface charge and gestational stage influenced biodistribution. Our data suggest the need of comprehensive toxicological studies, covering the entire gestation to reliably assess the safety of nanoparticle exposure during pregnancy.
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Affiliation(s)
- Antonio Pietroiusti
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, Rome 00133, Italy
| | - Lucia Vecchione
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, Rome 00133, Italy; Department of Physics, University of Calabria, Via P. Bucci, Cubo 31 C, Arcavacata di Rende, CS 87036, Italy
| | - Maria Ada Malvindi
- Nanobiointeractions & Nanodiagnostics, Center for Biomolecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia, Via Barsanti, Arnesano, Lecce 73010, Italy
| | - Cinzia Aru
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, Rome 00133, Italy
| | - Micol Massimiani
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, Rome 00133, Italy
| | - Antonella Camaioni
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, Rome 00133, Italy
| | - Andrea Magrini
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, Rome 00133, Italy
| | - Roberta Bernardini
- Animal Technology Station, University of Rome "Tor Vergata", Via Montpellier 1, Rome 00133, Italy
| | - Stefania Sabella
- Italian Institute of Technology, D3_Pharma Chemistry, Via Morego, Genova, GE 16146, Italy
| | - Pier Paolo Pompa
- Nanobiointeractions & Nanodiagnostics, Center for Biomolecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia, Via Barsanti, Arnesano, Lecce 73010, Italy; Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego, 30, Genova 16163, Italy
| | - Luisa Campagnolo
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, Rome 00133, Italy.
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Guarnieri D, Melone P, Moglianetti M, Marotta R, Netti PA, Pompa PP. Particle size affects the cytosolic delivery of membranotropic peptide-functionalized platinum nanozymes. Nanoscale 2017; 9:11288-11296. [PMID: 28758654 DOI: 10.1039/c7nr02350b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Delivery of therapeutic agents inside the cytosol, avoiding the confinement in endo-lysosomal compartments and their degradative environment, is one of the key targets of nanomedicine to gain the maximum remedial effects. Current approaches based on cell penetrating peptides (CPPs), despite improving the cellular uptake efficiency of nanocarriers, have shown controversial results in terms of intracellular localization. To elucidate the delivery potential of CPPs, in this work we analyzed the role of the particle size in influencing the ability of a membranotropic peptide, namely gH625, to escape the endo-lysosomal pathway and deliver the particles in the cytosol. To this aim, we carried out a systematic assessment of the cellular uptake and distribution of monodisperse platinum nanoparticles (PtNPs), having different diameters (2.5, 5 and 20 nm) and citrate capping or gH625 peptide functionalization. The presence of gH625 significantly increased the amount of internalized NPs in human cervix epithelioid carcinoma cells, as a function of particle size. However, scanning transmission electron microscopy (STEM) and electron tomography (ET) revealed a prevalent confinement of PtNPs within vesicular structures, regardless of the particle size and surface functionalization. Only in the case of the smallest 2.5 nm particles, the membranotropic peptide was able to partly maintain its functionality, enabling cytosolic delivery of a small fraction of internalized PtNPs, though particle agglomeration in culture medium limited single-particle transport across the cell membrane. Interestingly, membrane crossing by 2.5 nm functionalized-PtNPs seemed to occur by diffusion through the lipid bilayer, with no apparent membrane damage. For larger particle sizes (≥5 nm), their hindrance likely blocked the membranotropic mechanism. Combining the enhanced uptake and partial cytosolic delivery promoted by gH625, we were able to achieve a strong improvement of the antioxidant nanozyme function of 2.5 nm PtNPs, decreasing both the endogenous ROS level and its overproduction following an external oxidative insult.
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Affiliation(s)
- Daniela Guarnieri
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego, 30-16163 Genova, Italy.
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Rodríguez S, Gatto F, Pesce L, Canale C, Pompa PP, Bardi G, Lopez D, Torres FG. Monitoring cell substrate interactions in exopolysaccharide-based films reinforced with chitin whiskers and starch nanoparticles used as cell substrates. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1297942] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Sol Rodríguez
- Department of Mechanical Engineering, Pontificia Universidad Católica del Perú, Lima, Peru
| | - Francesca Gatto
- Istituto Italiano di Tecnologia (IIT), Genova, Italy
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
| | - Luca Pesce
- Istituto Italiano di Tecnologia (IIT), Genova, Italy
- Department of Physics, University of Genoa, Genova, Italy
| | | | | | | | - Daniel Lopez
- Institute of Polymer Science and Technology (ICTP-CSIC), Madrid, Spain
| | - Fernando G. Torres
- Department of Mechanical Engineering, Pontificia Universidad Católica del Perú, Lima, Peru
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Valentini P, Galimberti A, Mezzasalma V, De Mattia F, Casiraghi M, Labra M, Pompa PP. DNA Barcoding Meets Nanotechnology: Development of a Universal Colorimetric Test for Food Authentication. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Paola Valentini
- Nanobiointeractions & Nanodiagnostics; Istituto Italiano di Tecnologia (IIT); Via Morego 30 16163 Genoa Italy
| | - Andrea Galimberti
- Department of Biotechnology and Biosciences; University of Milano-Bicocca; P.za Della Scienza 2 20126 Milan Italy
| | - Valerio Mezzasalma
- Department of Biotechnology and Biosciences; University of Milano-Bicocca; P.za Della Scienza 2 20126 Milan Italy
| | | | - Maurizio Casiraghi
- Department of Biotechnology and Biosciences; University of Milano-Bicocca; P.za Della Scienza 2 20126 Milan Italy
| | - Massimo Labra
- Department of Biotechnology and Biosciences; University of Milano-Bicocca; P.za Della Scienza 2 20126 Milan Italy
| | - Pier Paolo Pompa
- Nanobiointeractions & Nanodiagnostics; Istituto Italiano di Tecnologia (IIT); Via Morego 30 16163 Genoa Italy
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Valentini P, Galimberti A, Mezzasalma V, De Mattia F, Casiraghi M, Labra M, Pompa PP. DNA Barcoding Meets Nanotechnology: Development of a Universal Colorimetric Test for Food Authentication. Angew Chem Int Ed Engl 2017; 56:8094-8098. [PMID: 28544553 DOI: 10.1002/anie.201702120] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 04/05/2017] [Indexed: 01/27/2023]
Abstract
Food trade globalization and the growing demand for selected food varieties have led to the intensification of adulteration cases, especially in the form of species substitution and mixing with cheaper taxa. This phenomenon has huge economic impact and sometimes even public health implications. DNA barcoding represents a well-proven molecular approach to assess the authenticity of food items, although its use is hampered by analytical constraints and timeframes that are often prohibitive for the food market. To address such issues, we have introduced a new technology, named NanoTracer, that allows for rapid and naked-eye molecular traceability of any food and requires limited instrumentation and cost-effective reagents. Moreover, unlike sequencing, this method can be used to identify not only the substitution of a fine ingredient, but also its dilution with cheaper ones.
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Affiliation(s)
- Paola Valentini
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163, Genoa, Italy
| | - Andrea Galimberti
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za Della Scienza 2, 20126, Milan, Italy
| | - Valerio Mezzasalma
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za Della Scienza 2, 20126, Milan, Italy
| | | | - Maurizio Casiraghi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za Della Scienza 2, 20126, Milan, Italy
| | - Massimo Labra
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, P.za Della Scienza 2, 20126, Milan, Italy
| | - Pier Paolo Pompa
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163, Genoa, Italy
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67
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Contardi M, Heredia-Guerrero JA, Perotto G, Valentini P, Pompa PP, Spanò R, Goldoni L, Bertorelli R, Athanassiou A, Bayer IS. Transparent ciprofloxacin-povidone antibiotic films and nanofiber mats as potential skin and wound care dressings. Eur J Pharm Sci 2017; 104:133-144. [PMID: 28366652 DOI: 10.1016/j.ejps.2017.03.044] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 03/21/2017] [Accepted: 03/30/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Marco Contardi
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego, 30, Genova 16163, Italy
| | | | - Giovanni Perotto
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego, 30, Genova 16163, Italy
| | - Paola Valentini
- Nanobiointeractions and Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego, 30, Genova 16163, Italy
| | - Pier Paolo Pompa
- Nanobiointeractions and Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego, 30, Genova 16163, Italy
| | - Raffaele Spanò
- Department of Drug Discovery and Development, Istituto Italiano di Tecnologia, Via Morego, 30, Genova 16163, Italy
| | - Luca Goldoni
- Department of Drug Discovery and Development, Istituto Italiano di Tecnologia, Via Morego, 30, Genova 16163, Italy
| | - Rosalia Bertorelli
- Department of Drug Discovery and Development, Istituto Italiano di Tecnologia, Via Morego, 30, Genova 16163, Italy
| | | | - Ilker S Bayer
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego, 30, Genova 16163, Italy.
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Abstract
In this work, we developed a new general strategy, which we named "exocytosis engineering", to strongly increase the intracellular persistence of nanocarriers and thus the effective dose of transported drugs. The strategy is based on the co-loading of a drug and an exocytosis inhibitor in the nanocarrier, to hinder the high tendency of cells to remove internalized nanocarriers, limiting the pharmacological efficiency of the nanoformulation. In particular, by using a well-known chemotherapeutic drug (doxorubicin) and an efficient exocytosis inhibitor (dimethilamyloride) co-loaded in mesoporous silica nanocarriers, we demonstrated a >6-fold increase in the intracellular dose of the drug (for the same administered dose), achieving a great improvement in its therapeutic action. A strong gain in the cytotoxic effect of the drug was, in fact, observed both in several tumor cell lines and in 3D tumor spheroids. The proposed approach is versatile and broadly applicable to several classes of nanocarriers and drugs, thus opening a fascinating outlook in nanomedicine.
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Affiliation(s)
- Stefania Corvaglia
- Nanobiointeractions&Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego, 30-16163, Genova, Italy. and Center for Bio-Molecular Nanotechnologies, Istituto Italiano di Tecnologia, Via Barsanti, 73010 Arnesano, Lecce, Italy
| | - Daniela Guarnieri
- Nanobiointeractions&Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego, 30-16163, Genova, Italy.
| | - Pier Paolo Pompa
- Nanobiointeractions&Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego, 30-16163, Genova, Italy. and Center for Bio-Molecular Nanotechnologies, Istituto Italiano di Tecnologia, Via Barsanti, 73010 Arnesano, Lecce, Italy
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69
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Persano S, Guevara ML, Li Z, Mai J, Ferrari M, Pompa PP, Shen H. Lipopolyplex potentiates anti-tumor immunity of mRNA-based vaccination. Biomaterials 2017; 125:81-89. [PMID: 28231510 DOI: 10.1016/j.biomaterials.2017.02.019] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 02/14/2017] [Accepted: 02/14/2017] [Indexed: 10/20/2022]
Abstract
mRNA-based vaccines have the benefit of triggering robust anti-cancer immunity without the potential danger of genome integration from DNA vaccines or the limitation of antigen selection from peptide vaccines. Yet, a conventional mRNA vaccine comprising of condensed mRNA molecules in a positively charged protein core structure is not effectively internalized by the antigen-presenting cells. It cannot offer sufficient protection for mRNA molecules from degradation by plasma and tissue enzymes either. Here, we have developed a lipopolyplex mRNA vaccine that consists of a poly-(β-amino ester) polymer mRNA core encapsulated into a 1,2-dioleoyl-sn-glycero-3-ethylphosphocholine/1,2-dioleoyl-sn-glycero-3-phosphatidyl-ethanolamine/1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[amino(polyethylene glycol)-2000 (EDOPC/DOPE/DSPE-PEG) lipid shell. This core-shell structured mRNA vaccine enters dendritic cells through macropinocytosis. It displayed intrinsic adjuvant activity by potently stimulating interferon-β and interleukin-12 expression in dendritic cells through Toll-like receptor 7/8 signaling. Dendritic cells treated with the mRNA vaccine displayed enhanced antigen presentation capability. Mice bearing lung metastatic B16-OVA tumors expressing the ovalbumin antigen were treated with the lipopolyplex mRNA, and over 90% reduction of tumor nodules was observed. Collectively, this core-shell structure offers a promising platform for mRNA vaccine development.
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Affiliation(s)
- Stefano Persano
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave, Houston, TX, 77030, USA; Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego, 30, 16163, Genova, Italy; Università del Salento, Via Provinciale Monteroni, 73100, Lecce, Italy
| | - Maria L Guevara
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave, Houston, TX, 77030, USA; Escuela de Ingenieria y Ciencias, Tecnologico de Monterrey, Monterrey, NL, 64849, Mexico
| | - Zhaoqi Li
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave, Houston, TX, 77030, USA
| | - Junhua Mai
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave, Houston, TX, 77030, USA
| | - Mauro Ferrari
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave, Houston, TX, 77030, USA; Department of Medicine, Weill Cornell Medical College, 1330 York Ave, New York, NY, 10065, USA
| | - Pier Paolo Pompa
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego, 30, 16163, Genova, Italy
| | - Haifa Shen
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave, Houston, TX, 77030, USA; Department of Cell and Developmental Biology, Weill Cornell Medical College, 1330 York Ave, New York, NY, 10065, USA.
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Perinot A, Kshirsagar P, Malvindi MA, Pompa PP, Fiammengo R, Caironi M. Direct-written polymer field-effect transistors operating at 20 MHz. Sci Rep 2016; 6:38941. [PMID: 27941844 PMCID: PMC5150525 DOI: 10.1038/srep38941] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 11/16/2016] [Indexed: 11/12/2022] Open
Abstract
Printed polymer electronics has held for long the promise of revolutionizing technology by delivering distributed, flexible, lightweight and cost-effective applications for wearables, healthcare, diagnostic, automation and portable devices. While impressive progresses have been registered in terms of organic semiconductors mobility, field-effect transistors (FETs), the basic building block of any circuit, are still showing limited speed of operation, thus limiting their real applicability. So far, attempts with organic FETs to achieve the tens of MHz regime, a threshold for many applications comprising the driving of high resolution displays, have relied on the adoption of sophisticated lithographic techniques and/or complex architectures, undermining the whole concept. In this work we demonstrate polymer FETs which can operate up to 20 MHz and are fabricated by means only of scalable printing techniques and direct-writing methods with a completely mask-less procedure. This is achieved by combining a fs-laser process for the sintering of high resolution metal electrodes, thus easily achieving micron-scale channels with reduced parasitism down to 0.19 pF mm-1, and a large area coating technique of a high mobility polymer semiconductor, according to a simple and scalable process flow.
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Affiliation(s)
- Andrea Perinot
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3, Milano, Italy
- Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, Milano, Italy
| | - Prakash Kshirsagar
- Center for Biomolecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia, Via Barsanti, 73010 Arnesano, Lecce, Italy
| | - Maria Ada Malvindi
- Center for Biomolecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia, Via Barsanti, 73010 Arnesano, Lecce, Italy
| | - Pier Paolo Pompa
- Center for Biomolecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia, Via Barsanti, 73010 Arnesano, Lecce, Italy
- Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Roberto Fiammengo
- Center for Biomolecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia, Via Barsanti, 73010 Arnesano, Lecce, Italy
| | - Mario Caironi
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3, Milano, Italy
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Maiorano G, Mele E, Frassanito MC, Restini E, Athanassiou A, Pompa PP. Ultra-efficient, widely tunable gold nanoparticle-based fiducial markers for X-ray imaging. Nanoscale 2016; 8:18921-18927. [PMID: 27812579 DOI: 10.1039/c6nr07021c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We show the development of a new class of highly efficient, biocompatible fiducial markers for X-ray imaging and radiosurgery, based on polymer shells encapsulating engineered gold nanoparticle (AuNP) suspensions. Our smart fabrication strategy enables wide tunability of the fiducial size, shape, and X-ray attenuation performance, up to record values >20 000 Hounsfield units (HU), i.e. comparable to or even higher than bulk gold. We show that the NP fiducials allow for superior imaging both in vitro and in vivo (yet requiring 2 orders of magnitude less material), with strong stability over time and the absence of classical "streak artifacts" of standard bulk fiducials. NP fiducials were probed in vivo, showing exceptional contrast efficiency, even after 2 weeks post-implant in mice.
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Affiliation(s)
- G Maiorano
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163, Genoa, Italy.
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Maiorano G, Mele E, Frassanito MC, Restini E, Athanassiou A, Pompa PP. Correction: Ultra-efficient, widely tunable gold nanoparticles-based fiducial markers for X-ray imaging. Nanoscale 2016; 8:19176. [PMID: 27824205 DOI: 10.1039/c6nr90242a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Correction for 'Ultra-efficient, widely tunable gold nanoparticles-based fiducial markers for X-ray imaging' by Gabriele Maiorano, et al., Nanoscale, 2016, DOI: 10.1039/c6nr07021c.
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Affiliation(s)
- G Maiorano
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163, Genoa, Italy.
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73
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Persano S, Guevara ML, Wolfram J, Blanco E, Shen H, Ferrari M, Pompa PP. Label-Free Isothermal Amplification Assay for Specific and Highly Sensitive Colorimetric miRNA Detection. ACS Omega 2016; 1:448-455. [PMID: 27713932 PMCID: PMC5046170 DOI: 10.1021/acsomega.6b00109] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 09/06/2016] [Indexed: 05/11/2023]
Abstract
We describe a new method for the detection of miRNA in biological samples. This technology is based on the isothermal nicking enzyme amplification reaction and subsequent hybridization of the amplification product with gold nanoparticles and magnetic microparticles (barcode system) to achieve naked-eye colorimetric detection. This platform was used to detect a specific miRNA (miRNA-10b) associated with breast cancer, and attomolar sensitivity was demonstrated. The assay was validated in cell culture lysates from breast cancer cells and in serum from a mouse model of breast cancer.
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Affiliation(s)
- Stefano Persano
- Department
of Nanomedicine, Houston Methodist Research
Institute, 6670 Bertner
Avenue, Houston 77030, Texas, United States
- Istituto
Italiano di Tecnologia (IIT), Via Morego, 30, 16163 Genova, Italy
- Università
del Salento, Via Provinciale
Monteroni, 73100 Lecce, Italy
| | - Maria L. Guevara
- Department
of Nanomedicine, Houston Methodist Research
Institute, 6670 Bertner
Avenue, Houston 77030, Texas, United States
| | - Joy Wolfram
- Department
of Nanomedicine, Houston Methodist Research
Institute, 6670 Bertner
Avenue, Houston 77030, Texas, United States
| | - Elvin Blanco
- Department
of Nanomedicine, Houston Methodist Research
Institute, 6670 Bertner
Avenue, Houston 77030, Texas, United States
| | - Haifa Shen
- Department
of Nanomedicine, Houston Methodist Research
Institute, 6670 Bertner
Avenue, Houston 77030, Texas, United States
- Department of Cell
and Developmental Biology and Department of Medicine, Weill Cornell Medicine, 1330 York Avenue, New York 10065, New York, United
States
| | - Mauro Ferrari
- Department
of Nanomedicine, Houston Methodist Research
Institute, 6670 Bertner
Avenue, Houston 77030, Texas, United States
- Department of Cell
and Developmental Biology and Department of Medicine, Weill Cornell Medicine, 1330 York Avenue, New York 10065, New York, United
States
| | - Pier Paolo Pompa
- Istituto
Italiano di Tecnologia (IIT), Via Morego, 30, 16163 Genova, Italy
- E-mail:
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74
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Gatto F, Troncoso OP, Brunetti V, Malvindi MA, Pompa PP, Torres FG, Bardi G. Human monocyte response to Andean-native starch nanoparticles. STARCH-STARKE 2016. [DOI: 10.1002/star.201600105] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Francesca Gatto
- Istituto Italiano di Tecnologia (IIT); Genova Italy
- Department Of Engineering for Innovation; University of Salento; Lecce Italy
| | - Omar P Troncoso
- Department of Mechanical Engineering; Pontificia Universidad Catolica del Peru; Lima Peru
| | - Virgilio Brunetti
- Istituto Italiano di Tecnologia (IIT); Center for Bio-Molecular Nanotechnology@UniLe; Arnesano, Lecce Italy
| | - Maria Ada Malvindi
- Istituto Italiano di Tecnologia (IIT); Center for Bio-Molecular Nanotechnology@UniLe; Arnesano, Lecce Italy
| | | | - Fernando G Torres
- Department of Mechanical Engineering; Pontificia Universidad Catolica del Peru; Lima Peru
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75
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Valentini P, Marsella A, Tarantino P, Mauro S, Baglietto S, Congedo M, Paolo Pompa P. Naked-eye fingerprinting of single nucleotide polymorphisms on psoriasis patients. Nanoscale 2016; 8:11027-11033. [PMID: 27174795 DOI: 10.1039/c6nr02200f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report a low-cost test, based on gold nanoparticles, for the colorimetric (naked-eye) fingerprinting of a panel of single nucleotide polymorphisms (SNPs), relevant for the personalized therapy of psoriasis. Such pharmacogenomic tests are not routinely performed on psoriasis patients, due to the high cost of standard technologies. We demonstrated high sensitivity and specificity of our colorimetric test by validating it on a cohort of 30 patients, through a double-blind comparison with two state-of-the-art instrumental techniques, namely reverse dot blotting and sequencing, finding 100% agreement. This test offers high parallelization capabilities and can be easily generalized to other SNPs of clinical relevance, finding broad utility in diagnostics and pharmacogenomics.
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Affiliation(s)
- Paola Valentini
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego, 30-16163 - Genova, Italy.
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76
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Abstract
We present a nanoembossed nanoshell with a new internal location for the formation of strong electromagnetic fields. The internally nanoembossed gold nanoshell (AuNS) is fabricated by electrostatically assembling smaller silica nanoparticles (∼15.7 nm) around the silica core (∼123.6 nm) followed by growing gold nanoseeds on the core in a wet process. FDTD calculations reveal the creation of a strong electromagnetic field (|E/Ein|max = 55 at 633 nm) at sharp edges formed by the contact between the nanoembosses and the silica core. The field formation is supported by measuring the SERS signal of Ru(bpy) encapsulated in the nanoembossing silica nanoparticles. SERS signals as strong as the corresponding fluorescence are obtained. The Raman enhancement factor (EF) is estimated to be up to 10(10) at 633 nm excitation, in addition to a comparable EF at 785 nm laser excitation. The SERS intensity of the nanoembossed nanoshell layer is sufficiently high compared to the outer or the core of the nanoshell. Finally, we fabricate all-in-one nanoparticles with all the three places where the reporter dyes are loaded and acquire the highest SERS intensity to potentially enable bio-medical applications of the nanoembossed AuNS as a sensitive and reliable labeling particle.
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Affiliation(s)
- J H Kim
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, 88 Dongnae-ro, Dong-gu, Daegu 701-310, Korea
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77
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Liakos IL, Abdellatif MH, Innocenti C, Scarpellini A, Carzino R, Brunetti V, Marras S, Brescia R, Drago F, Pompa PP. Antimicrobial Lemongrass Essential Oil-Copper Ferrite Cellulose Acetate Nanocapsules. Molecules 2016; 21:520. [PMID: 27104514 PMCID: PMC6273162 DOI: 10.3390/molecules21040520] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 04/13/2016] [Accepted: 04/14/2016] [Indexed: 11/16/2022] Open
Abstract
Cellulose acetate (CA) nanoparticles were combined with two antimicrobial agents, namely lemongrass (LG) essential oil and Cu-ferrite nanoparticles. The preparation method of CA nanocapsules (NCs), with the two antimicrobial agents, was based on the nanoprecipitation method using the solvent/anti-solvent technique. Several physical and chemical analyses were performed to characterize the resulting NCs and to study their formation mechanism. The size of the combined antimicrobial NCs was found to be ca. 220 nm. The presence of Cu-ferrites enhanced the attachment of LG essential oil into the CA matrix. The magnetic properties of the combined construct were weak, due to the shielding of Cu-ferrites from the polymeric matrix, making them available for drug delivery applications where spontaneous magnetization effects should be avoided. The antimicrobial properties of the NCs were significantly enhanced with respect to CA/LG only. This work opens novel routes for the development of organic/inorganic nanoparticles with exceptional antimicrobial activities.
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Affiliation(s)
- Ioannis L Liakos
- Smart Materials Group, Nanophysics Department, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genoa, Italy.
| | - Mohamed H Abdellatif
- Nanostructures Department, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genoa, Italy.
| | - Claudia Innocenti
- INSTM-RU of Florence and Department of Chemistry, University of Florence, Via Della Lastruccia 3-13, 50019 Sesto F.no, Firenze, Italy.
| | - Alice Scarpellini
- Nanochemistry Department, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genoa, Italy.
| | - Riccardo Carzino
- Smart Materials Group, Nanophysics Department, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genoa, Italy.
| | - Virgilio Brunetti
- Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia (IIT), Via Barsanti 1, 73010 Lecce, Italy.
| | - Sergio Marras
- Nanochemistry Department, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genoa, Italy.
| | - Rosaria Brescia
- Nanochemistry Department, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genoa, Italy.
| | - Filippo Drago
- Nanochemistry Department, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genoa, Italy.
| | - Pier Paolo Pompa
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genoa, Italy.
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78
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Moglianetti M, De Luca E, Pedone D, Marotta R, Catelani T, Sartori B, Amenitsch H, Retta SF, Pompa PP. Platinum nanozymes recover cellular ROS homeostasis in an oxidative stress-mediated disease model. Nanoscale 2016; 8:3739-52. [PMID: 26815950 DOI: 10.1039/c5nr08358c] [Citation(s) in RCA: 151] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In recent years, the use of nanomaterials as biomimetic enzymes has attracted great interest. In this work, we show the potential of biocompatible platinum nanoparticles (Pt NPs) as antioxidant nanozymes, which combine abundant cellular internalization and efficient scavenging activity of cellular reactive oxygen species (ROS), thus simultaneously integrating the functions of nanocarriers and antioxidant drugs. Careful toxicity assessment and intracellular tracking of Pt NPs proved their cytocompatibility and high cellular uptake, with compartmentalization within the endo/lysosomal vesicles. We have demonstrated that Pt NPs possess strong and broad antioxidant properties, acting as superoxide dismutase, catalase, and peroxidase enzymes, with similar or even superior performance than natural enzymes, along with higher adaptability to the changes in environmental conditions. We then exploited their potent activity as radical scavenging materials in a cellular model of an oxidative stress-related disorder, namely human Cerebral Cavernous Malformation (CCM) disease, which is associated with a significant increase in intracellular ROS levels. Noteworthily, we found that Pt nanozymes can efficiently reduce ROS levels, completely restoring the cellular physiological homeostasis.
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Affiliation(s)
- Mauro Moglianetti
- Istituto Italiano di Tecnologia, Center for Biomolecular Nanotechnologies, Via Barsanti - 73010 Arnesano, Lecce, Italy.
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79
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Affiliation(s)
- Paola Valentini
- Istituto Italiano di Tecnologia (IIT); Via Morego, 30 16163 Genova Italy
| | - Pier Paolo Pompa
- Istituto Italiano di Tecnologia (IIT); Via Morego, 30 16163 Genova Italy
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80
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Affiliation(s)
- Paola Valentini
- Istituto Italiano di Tecnologia (IIT); Via Morego, 30 16163 Genova Italy
| | - Pier Paolo Pompa
- Istituto Italiano di Tecnologia (IIT); Via Morego, 30 16163 Genova Italy
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81
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De Matteis V, Malvindi MA, Galeone A, Brunetti V, De Luca E, Kote S, Kshirsagar P, Sabella S, Bardi G, Pompa PP. Negligible particle-specific toxicity mechanism of silver nanoparticles: The role of Ag+ ion release in the cytosol. Nanomedicine: Nanotechnology, Biology and Medicine 2015; 11:731-9. [DOI: 10.1016/j.nano.2014.11.002] [Citation(s) in RCA: 167] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 11/03/2014] [Accepted: 11/15/2014] [Indexed: 10/24/2022]
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82
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Bartelmess J, De Luca E, Signorelli A, Baldrighi M, Becce M, Brescia R, Nardone V, Parisini E, Echegoyen L, Pompa PP, Giordani S. Boron dipyrromethene (BODIPY) functionalized carbon nano-onions for high resolution cellular imaging. Nanoscale 2014; 6:13761-9. [PMID: 25286147 DOI: 10.1039/c4nr04533e] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Carbon nano-onions (CNOs) are an exciting class of carbon nanomaterials, which have recently demonstrated a facile cell-penetration capability. In the present work, highly fluorescent boron dipyrromethene (BODIPY) dyes were covalently attached to the surface of CNOs. The introduction of this new carbon nanomaterial-based imaging platform, made of CNOs and BODIPY fluorophores, allows for the exploration of synergetic effects between the two building blocks and for the elucidation of its performance in biological applications. The high fluorescence intensity exhibited by the functionalized CNOs translates into an excellent in vitro probe for the high resolution imaging of MCF-7 human breast cancer cells. It was also found that the CNOs, internalized by the cells by endocytosis, localized in the lysosomes and did not show any cytotoxic effects. The presented results highlight CNOs as excellent platforms for biological and biomedical studies due to their low toxicity, efficient cellular uptake and low fluorescence quenching of attached probes.
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Affiliation(s)
- Juergen Bartelmess
- Istituto Italiano di Tecnologia (IIT), Nano Carbon Materials, Nanophysics Department, Via Morego 30, 16163 Genova, Italy.
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83
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Ambrosone A, Scotto di Vettimo MR, Malvindi MA, Roopin M, Levy O, Marchesano V, Pompa PP, Tortiglione C, Tino A. Impact of Amorphous SiO2 Nanoparticles on a Living Organism: Morphological, Behavioral, and Molecular Biology Implications. Front Bioeng Biotechnol 2014; 2:37. [PMID: 25325055 PMCID: PMC4179610 DOI: 10.3389/fbioe.2014.00037] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 09/09/2014] [Indexed: 11/13/2022] Open
Abstract
It is generally accepted that silica (SiO2) is not toxic. But the increasing use of silica nanoparticles (SiO2NPs) in many different industrial fields has prompted the careful investigation of their toxicity in biological systems. In this report, we describe the effects elicited by SiO2NPs on animal and cell physiology. Stable and monodisperse amorphous silica nanoparticles, 25 nM in diameter, were administered to living Hydra vulgaris (Cnidaria). The dose-related effects were defined by morphological and behavioral assays. The results revealed an all-or-nothing lethal toxicity with a rather high threshold (35 nM NPs) and a LT50 of 38 h. At sub lethal doses, the morphophysiological effects included: animal morphology alterations, paralysis of the gastric region, disorganization and depletion of tentacle specialized cells, increase of apoptotic and collapsed cells, and reduction of the epithelial cell proliferation rate. Transcriptome analysis (RNAseq) revealed 45 differentially expressed genes, mostly involved in stress response and cuticle renovation. Our results show that Hydra reacts to SiO2NPs, is able to rebalance the animal homeostasis up to a relatively high doses of SiO2NPs, and that the physiological modifications are transduced to gene expression modulation.
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Affiliation(s)
- Alfredo Ambrosone
- Istituto di Cibernetica "Eduardo Caianiello", Consiglio Nazionale delle Ricerche , Pozzuoli , Italy
| | | | - Maria Ada Malvindi
- Center for Biomolecular Nanotechnologies@UNILE, Istituto Italiano di Tecnologia , Arnesano , Italy
| | - Modi Roopin
- The Mina and Everard Goodman Faculty of Life Sciences, Bar Ilan University , Ramat Gan , Israel
| | - Oren Levy
- The Mina and Everard Goodman Faculty of Life Sciences, Bar Ilan University , Ramat Gan , Israel
| | - Valentina Marchesano
- Istituto di Cibernetica "Eduardo Caianiello", Consiglio Nazionale delle Ricerche , Pozzuoli , Italy
| | - Pier Paolo Pompa
- Center for Biomolecular Nanotechnologies@UNILE, Istituto Italiano di Tecnologia , Arnesano , Italy
| | - Claudia Tortiglione
- Istituto di Cibernetica "Eduardo Caianiello", Consiglio Nazionale delle Ricerche , Pozzuoli , Italy
| | - Angela Tino
- Istituto di Cibernetica "Eduardo Caianiello", Consiglio Nazionale delle Ricerche , Pozzuoli , Italy
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84
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Guarnieri D, Sabella S, Muscetti O, Belli V, Malvindi MA, Fusco S, De Luca E, Pompa PP, Netti PA. Transport across the cell-membrane dictates nanoparticle fate and toxicity: a new paradigm in nanotoxicology. Nanoscale 2014; 6:10264-10273. [PMID: 25061814 DOI: 10.1039/c4nr02008a] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The toxicity of metallic nanoparticles (MNPs) has been fully ascertained, but the mechanisms underlying their cytotoxicity remain still largely unclear. Here we demonstrate that the cytotoxicity of MNPs is strictly reliant on the pathway of cellular internalization. In particular, if otherwise toxic gold, silver, and iron oxide NPs are forced through the cell membrane bypassing any form of active mechanism (e.g., endocytosis), no significant cytotoxic effect is registered. Pneumatically driven NPs across the cell membrane show a different distribution within the cytosol compared to NPs entering the cell by active endocytosis. Specifically, they exhibit free random Brownian motions within the cytosol and do not accumulate in lysosomes. Results suggest that intracellular accumulation of metallic nanoparticles into endo-lysosomal compartments is the leading cause of nanotoxicity, due to consequent nanoparticle degradation and in situ release of metal ions.
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Affiliation(s)
- Daniela Guarnieri
- Center for Advanced Biomaterials for Health Care@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125 Napoli, Italy
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85
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Abstract
Carbon Dots (CDs) are a new promising type of small (5 nm), biocompatible and multicolor luminescent nanoparticle. Here, we demonstrate super-resolution imaging of CDs at the nanoscale through STimulated Emission Depletion (STED) microscopy. In addition, we report the application of STED for detection of CD localization in both fixed and living cells, achieving a spatial resolution down to 30 nm, far below the diffraction limit, showing great promise for high resolution visualization of cellular dynamics.
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Affiliation(s)
- Godefroy Leménager
- Istituto Italiano di Tecnologia, Center for Bio-Molecular Nanotechnologies@UniLe, Via Barsanti - 73010, Arnesano (Lecce), Italy.
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86
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Vecchio G, Fenech M, Pompa PP, Voelcker NH. Lab-on-a-chip-based high-throughput screening of the genotoxicity of engineered nanomaterials. Small 2014; 10:2721-2734. [PMID: 24610750 DOI: 10.1002/smll.201303359] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Indexed: 06/03/2023]
Abstract
The continuous increasing of engineered nanomaterials (ENMs) in our environment, their combinatorial diversity, and the associated genotoxic risks, highlight the urgent need to better define the possible toxicological effects of ENMs. In this context, we present a new high-throughput screening (HTS) platform based on the cytokinesis-block micronucleus (CBMN) assay, lab-on-chip cell sorting, and automated image analysis. This HTS platform has been successfully applied to the evaluation of the cytotoxic and genotoxic effects of silver nanoparticles (AgNPs) and silica nanoparticles (SiO2NPs). In particular, our results demonstrate the high cyto- and genotoxicity induced by AgNPs and the biocompatibility of SiO2NPs, in primary human lymphocytes. Moreover, our data reveal that the toxic effects are also dependent on size, surface coating, and surface charge. Most importantly, our HTS platform shows that AgNP-induced genotoxicity is lymphocyte sub-type dependent and is particularly pronounced in CD2+ and CD4+ cells.
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Affiliation(s)
- Giuseppe Vecchio
- Mawson Institute, University of South Australia, Mawson Lakes, SA, 5095, Australia
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87
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Abstract
MicroRNAs (miRNAs) are important regulators of gene expression, and many pathological conditions, including cancer, are characterized by altered miRNA expression levels. Therefore, accurate and sensitive quantification of miRNAs may result in correct disease diagnosis establishing these small noncoding RNA transcripts as valuable biomarkers. Aiming at overcoming some limitations of conventional quantification strategies, nanotechnology is currently providing numerous significant alternatives to miRNA sensing. In this review an up-to-date account of nanotechnology-based strategies for miRNA detection and quantification is given. The topics covered are: nanoparticle-based approaches in solution, sensing based on nanostructured surfaces, combined nanoparticle/surface sensing approaches, and single-molecule approaches.
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Affiliation(s)
- Federica Degliangeli
- Center for Biomolecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia (IIT), Via Barsanti, 73010 Arnesano (Lecce) (Italy)
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88
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Sabella S, Carney RP, Brunetti V, Malvindi MA, Al-Juffali N, Vecchio G, Janes SM, Bakr OM, Cingolani R, Stellacci F, Pompa PP. A general mechanism for intracellular toxicity of metal-containing nanoparticles. Nanoscale 2014; 6:7052-61. [PMID: 24842463 PMCID: PMC4120234 DOI: 10.1039/c4nr01234h] [Citation(s) in RCA: 297] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 04/06/2014] [Indexed: 05/18/2023]
Abstract
The assessment of the risks exerted by nanoparticles is a key challenge for academic, industrial, and regulatory communities worldwide. Experimental evidence points towards significant toxicity for a range of nanoparticles both in vitro and in vivo. Worldwide efforts aim at uncovering the underlying mechanisms for this toxicity. Here, we show that the intracellular ion release elicited by the acidic conditions of the lysosomal cellular compartment--where particles are abundantly internalized--is responsible for the cascading events associated with nanoparticles-induced intracellular toxicity. We call this mechanism a "lysosome-enhanced Trojan horse effect" since, in the case of nanoparticles, the protective cellular machinery designed to degrade foreign objects is actually responsible for their toxicity. To test our hypothesis, we compare the toxicity of similar gold particles whose main difference is in the internalization pathways. We show that particles known to pass directly through cell membranes become more toxic when modified so as to be mostly internalized by endocytosis. Furthermore, using experiments with chelating and lysosomotropic agents, we found that the toxicity mechanism for different metal containing NPs (such as metallic, metal oxide, and semiconductor NPs) is mainly associated with the release of the corresponding toxic ions. Finally, we show that particles unable to release toxic ions (such as stably coated NPs, or diamond and silica NPs) are not harmful to intracellular environments.
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Affiliation(s)
- Stefania Sabella
- Istituto Italiano di Tecnologia , Center for Bio-Molecular Nanotechnologies@UniLe , Via Barsanti , 73010 Arnesano (Lecce) , Italy . ; Fax: +39-0832-1816230 ; Tel: +39-0832-1816214
| | - Randy P. Carney
- Institute of Materials , École Polytechnique Fédérale de Lausanne (EPFL) , CH-1015 Lausanne , Switzerland . ; Fax: +41 21 6935270 ; Tel: +41 21 6937872
| | - Virgilio Brunetti
- Istituto Italiano di Tecnologia , Center for Bio-Molecular Nanotechnologies@UniLe , Via Barsanti , 73010 Arnesano (Lecce) , Italy . ; Fax: +39-0832-1816230 ; Tel: +39-0832-1816214
| | - Maria Ada Malvindi
- Istituto Italiano di Tecnologia , Center for Bio-Molecular Nanotechnologies@UniLe , Via Barsanti , 73010 Arnesano (Lecce) , Italy . ; Fax: +39-0832-1816230 ; Tel: +39-0832-1816214
| | - Noura Al-Juffali
- Institute of Materials , École Polytechnique Fédérale de Lausanne (EPFL) , CH-1015 Lausanne , Switzerland . ; Fax: +41 21 6935270 ; Tel: +41 21 6937872
- Centre For Respiratory Research , Rayne Institute , University College London , 5 University Street , London WC1E 6JJ , UK
| | - Giuseppe Vecchio
- Istituto Italiano di Tecnologia , Center for Bio-Molecular Nanotechnologies@UniLe , Via Barsanti , 73010 Arnesano (Lecce) , Italy . ; Fax: +39-0832-1816230 ; Tel: +39-0832-1816214
| | - Sam M. Janes
- Centre For Respiratory Research , Rayne Institute , University College London , 5 University Street , London WC1E 6JJ , UK
| | - Osman M. Bakr
- Division of Physical Sciences and Engineering , Solar and Photovoltaics Engineering Center , King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900 , Saudi Arabia
| | - Roberto Cingolani
- Istituto Italiano di Tecnologia , Central Research Laboratories , Via Morego , 30-16136 Genova , Italy
| | - Francesco Stellacci
- Institute of Materials , École Polytechnique Fédérale de Lausanne (EPFL) , CH-1015 Lausanne , Switzerland . ; Fax: +41 21 6935270 ; Tel: +41 21 6937872
| | - Pier Paolo Pompa
- Istituto Italiano di Tecnologia , Center for Bio-Molecular Nanotechnologies@UniLe , Via Barsanti , 73010 Arnesano (Lecce) , Italy . ; Fax: +39-0832-1816230 ; Tel: +39-0832-1816214
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89
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Corvaglia S, Sanavio B, Hong Enriquez RP, Sorce B, Bosco A, Scaini D, Sabella S, Pompa PP, Scoles G, Casalis L. Atomic force microscopy based nanoassay: a new method to study α-Synuclein-dopamine bioaffinity interactions. Sci Rep 2014; 4:5366. [PMID: 24947141 PMCID: PMC4064358 DOI: 10.1038/srep05366] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 05/28/2014] [Indexed: 12/25/2022] Open
Abstract
Intrinsically Disordered Proteins (IDPs) are characterized by the lack of well-defined 3-D structure and show high conformational plasticity. For this reason, they are a strong challenge for the traditional characterization of structure, supramolecular assembly and biorecognition phenomena. We show here how the fine tuning of protein orientation on a surface turns useful in the reliable testing of biorecognition interactions of IDPs, in particular α-Synuclein. We exploited atomic force microscopy (AFM) for the selective, nanoscale confinement of α-Synuclein on gold to study the early stages of α-Synuclein aggregation and the effect of small molecules, like dopamine, on the aggregation process. Capitalizing on the high sensitivity of AFM topographic height measurements we determined, for the first time in the literature, the dissociation constant of dopamine-α-Synuclein adducts.
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Affiliation(s)
- Stefania Corvaglia
- NanoInnovation Laboratory, Elettra Sincrotrone Trieste S.C.p.A., S.S.14 Km 163.5, 34149 Basovizza, Trieste, Italy
- Life Science Department, University of Trieste, via Giorgieri 1, I-34127 Trieste, Italy
| | - Barbara Sanavio
- NanoInnovation Laboratory, Elettra Sincrotrone Trieste S.C.p.A., S.S.14 Km 163.5, 34149 Basovizza, Trieste, Italy
- Department of Biological and Medical Science, University of Udine, Ospedale della Misericordia, Piazzale Santa Maria della Misericordia, 15 -33100 Udine, Italy
- Current address: Fondazione I.R.C.C.S. Istituto Neurologico Carlo Besta, IFOM-IEO-campus, via Adamello, 16, 20139 Milan, Italy
| | - Rolando P. Hong Enriquez
- Department of Biological and Medical Science, University of Udine, Ospedale della Misericordia, Piazzale Santa Maria della Misericordia, 15 -33100 Udine, Italy
| | - Barbara Sorce
- Center for Bio-Molecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia, Via Barsanti-73010 Arnesano, Lecce, Italy
- Current address: ETH Zürich, Department of Biosystems Science and Engineering, 4058 Basel, Switzerland
| | - Alessandro Bosco
- NanoInnovation Laboratory, Elettra Sincrotrone Trieste S.C.p.A., S.S.14 Km 163.5, 34149 Basovizza, Trieste, Italy
| | - Denis Scaini
- NanoInnovation Laboratory, Elettra Sincrotrone Trieste S.C.p.A., S.S.14 Km 163.5, 34149 Basovizza, Trieste, Italy
- Life Science Department, University of Trieste, via Giorgieri 1, I-34127 Trieste, Italy
| | - Stefania Sabella
- Center for Bio-Molecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia, Via Barsanti-73010 Arnesano, Lecce, Italy
| | - Pier Paolo Pompa
- Center for Bio-Molecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia, Via Barsanti-73010 Arnesano, Lecce, Italy
| | - Giacinto Scoles
- NanoInnovation Laboratory, Elettra Sincrotrone Trieste S.C.p.A., S.S.14 Km 163.5, 34149 Basovizza, Trieste, Italy
- Department of Biological and Medical Science, University of Udine, Ospedale della Misericordia, Piazzale Santa Maria della Misericordia, 15 -33100 Udine, Italy
| | - Loredana Casalis
- NanoInnovation Laboratory, Elettra Sincrotrone Trieste S.C.p.A., S.S.14 Km 163.5, 34149 Basovizza, Trieste, Italy
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90
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Rizzello L, Pompa PP. ChemInform Abstract: Nanosilver-Based Antibacterial Drugs and Devices: Mechanisms, Methodological Drawbacks, and Guidelines. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/chin.201418287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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91
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Gamucci O, Bertero A, Malvindi MA, Sabella S, Pompa PP, Mazzolai B, Bardi G. Detection of fluorescent nanoparticle interactions with primary immune cell subpopulations by flow cytometry. J Vis Exp 2014. [PMID: 24747480 PMCID: PMC4159100 DOI: 10.3791/51345] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Engineered nanoparticles are endowed with very promising properties for therapeutic and diagnostic purposes. This work describes a fast and reliable method of analysis by flow cytometry to study nanoparticle interaction with immune cells. Primary immune cells can be easily purified from human or mouse tissues by antibody-mediated magnetic isolation. In the first instance, the different cell populations running in a flow cytometer can be distinguished by the forward-scattered light (FSC), which is proportional to cell size, and the side-scattered light (SSC), related to cell internal complexity. Furthermore, fluorescently labeled antibodies against specific cell surface receptors permit the identification of several subpopulations within the same sample. Often, all these features vary when cells are boosted by external stimuli that change their physiological and morphological state. Here, 50 nm FITC-SiO2 nanoparticles are used as a model to identify the internalization of nanostructured materials in human blood immune cells. The cell fluorescence and side-scattered light increase after incubation with nanoparticles allowed us to define time and concentration dependence of nanoparticle-cell interaction. Moreover, such protocol can be extended to investigate Rhodamine-SiO2 nanoparticle interaction with primary microglia, the central nervous system resident immune cells, isolated from mutant mice that specifically express the Green Fluorescent Protein (GFP) in the monocyte/macrophage lineage. Finally, flow cytometry data related to nanoparticle internalization into the cells have been confirmed by confocal microscopy.
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Affiliation(s)
- Olimpia Gamucci
- Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia
| | - Alice Bertero
- Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia; Department of Biology, University of Pisa
| | - Maria Ada Malvindi
- Center for Biomolecular Nanotechnologies @UniLe, Istituto Italiano di Tecnologia
| | - Stefania Sabella
- Center for Biomolecular Nanotechnologies @UniLe, Istituto Italiano di Tecnologia
| | - Pier Paolo Pompa
- Center for Biomolecular Nanotechnologies @UniLe, Istituto Italiano di Tecnologia
| | - Barbara Mazzolai
- Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia
| | - Giuseppe Bardi
- Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia;
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92
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Degliangeli F, Kshirsagar P, Brunetti V, Pompa PP, Fiammengo R. Absolute and Direct MicroRNA Quantification Using DNA–Gold Nanoparticle Probes. J Am Chem Soc 2014; 136:2264-7. [DOI: 10.1021/ja412152x] [Citation(s) in RCA: 330] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Federica Degliangeli
- Center
for Biomolecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia (IIT),Via
Barsanti, 73010 Arnesano, Lecce, Italy
| | - Prakash Kshirsagar
- Center
for Biomolecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia (IIT),Via
Barsanti, 73010 Arnesano, Lecce, Italy
| | - Virgilio Brunetti
- Center
for Biomolecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia (IIT),Via
Barsanti, 73010 Arnesano, Lecce, Italy
| | - Pier Paolo Pompa
- Center
for Biomolecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia (IIT),Via
Barsanti, 73010 Arnesano, Lecce, Italy
| | - Roberto Fiammengo
- Center
for Biomolecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia (IIT),Via
Barsanti, 73010 Arnesano, Lecce, Italy
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93
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Kshirsagar P, Sangaru SS, Brunetti V, Malvindi MA, Pompa PP. Synthesis of fluorescent metal nanoparticles in aqueous solution by photochemical reduction. Nanotechnology 2014; 25:045601. [PMID: 24394346 DOI: 10.1088/0957-4484/25/4/045601] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A facile green chemistry approach for the synthesis of sub-5 nm silver and gold nanoparticles is reported. The synthesis was achieved by a photochemical method using tyrosine as the photoreducing agent. The size of the gold and silver nanoparticles was about 3 and 4 nm, respectively. The nanoparticles were characterized using x-ray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy and photoluminescence spectroscopy. Both silver and gold nanoparticles synthesized by this method exhibited fluorescence properties and their use for cell imaging applications has been demonstrated.
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Affiliation(s)
- Prakash Kshirsagar
- Istituto Italiano di Tecnologia, Center for Biomolecular Nanotechnologies@Unile, Via Barsanti, I-73010 Arnesano, LE, Italy
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94
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Malvindi MA, De Matteis V, Galeone A, Brunetti V, Anyfantis GC, Athanassiou A, Cingolani R, Pompa PP. Toxicity assessment of silica coated iron oxide nanoparticles and biocompatibility improvement by surface engineering. PLoS One 2014; 9:e85835. [PMID: 24465736 PMCID: PMC3897540 DOI: 10.1371/journal.pone.0085835] [Citation(s) in RCA: 136] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Accepted: 12/02/2013] [Indexed: 01/01/2023] Open
Abstract
We have studied in vitro toxicity of iron oxide nanoparticles (NPs) coated with a thin silica shell (Fe3O4/SiO2 NPs) on A549 and HeLa cells. We compared bare and surface passivated Fe3O4/SiO2 NPs to evaluate the effects of the coating on the particle stability and toxicity. NPs cytotoxicity was investigated by cell viability, membrane integrity, mitochondrial membrane potential (MMP), reactive oxygen species (ROS) assays, and their genotoxicity by comet assay. Our results show that NPs surface passivation reduces the oxidative stress and alteration of iron homeostasis and, consequently, the overall toxicity, despite bare and passivated NPs show similar cell internalization efficiency. We found that the higher toxicity of bare NPs is due to their stronger in-situ degradation, with larger intracellular release of iron ions, as compared to surface passivated NPs. Our results indicate that surface engineering of Fe3O4/SiO2 NPs plays a key role in improving particles stability in biological environments reducing both cytotoxic and genotoxic effects.
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Affiliation(s)
- Maria Ada Malvindi
- Center for Biomolecular Nanotechnologies@UNILE, Istituto Italiano di Tecnologia, Arnesano, Italy
| | - Valeria De Matteis
- Center for Biomolecular Nanotechnologies@UNILE, Istituto Italiano di Tecnologia, Arnesano, Italy
| | - Antonio Galeone
- Center for Biomolecular Nanotechnologies@UNILE, Istituto Italiano di Tecnologia, Arnesano, Italy
| | - Virgilio Brunetti
- Center for Biomolecular Nanotechnologies@UNILE, Istituto Italiano di Tecnologia, Arnesano, Italy
| | | | | | | | - Pier Paolo Pompa
- Center for Biomolecular Nanotechnologies@UNILE, Istituto Italiano di Tecnologia, Arnesano, Italy
- * E-mail:
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95
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Abstract
Despite the current advancement in drug discovery and pharmaceutical biotechnology, infection diseases induced by bacteria continue to be one of the greatest health problems worldwide, afflicting millions of people annually. Almost all microorganisms have, in fact, an intrinsic outstanding ability to flout many therapeutic interventions, thanks to their fast and easy-to-occur evolutionary genetic mechanisms. At the same time, big pharmaceutical companies are losing interest in new antibiotics development, shifting their capital investments in much more profitable research and development fields. New smart solutions are, thus, required to overcome such concerns, and should combine the feasibility of industrial production processes with cheapness and effectiveness. In this framework, nanotechnology-based solutions, and in particular silver nanoparticles (AgNPs), have recently emerged as promising candidates in the market as new antibacterial agents. AgNPs display, in fact, enhanced broad-range antibacterial/antiviral properties, and their synthesis procedures are quite cost effective. However, despite their increasing impact on the market, many relevant issues are still open. These include the molecular mechanisms governing the AgNPs-bacteria interactions, the physico-chemical parameters underlying their toxicity to prokaryotes, the lack of standardized methods and materials, and the uncertainty in the definition of general strategies to develop smart antibacterial drugs and devices based on nanosilver. In this review, we analyze the experimental data on the bactericidal effects of AgNPs, discussing the complex scenario and presenting the potential drawbacks and limitations in the techniques and methods employed. Moreover, after analyzing in depth the main mechanisms involved, we provide some general strategies/procedures to perform antibacterial tests of AgNPs, and propose some general guidelines for the design of antibacterial nanosystems and devices based on silver/nanosilver.
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Affiliation(s)
- Loris Rizzello
- Istituto Italiano di Tecnologia (IIT), Center for Bio-Molecular Nanotechnologies@UniLe, Via Barsanti, 73010 Arnesano (Lecce), Italy.
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96
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Liakos I, Rizzello L, Scurr DJ, Pompa PP, Bayer IS, Athanassiou A. All-natural composite wound dressing films of essential oils encapsulated in sodium alginate with antimicrobial properties. Int J Pharm 2013; 463:137-45. [PMID: 24211443 DOI: 10.1016/j.ijpharm.2013.10.046] [Citation(s) in RCA: 149] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Revised: 10/18/2013] [Accepted: 10/28/2013] [Indexed: 11/26/2022]
Abstract
We present natural polymeric composite films made of essential oils (EOs) dispersed in sodium alginate (NaAlg) matrix, with remarkable anti-microbial and anti-fungal properties. Namely, elicriso italic, chamomile blue, cinnamon, lavender, tea tree, peppermint, eucalyptus, lemongrass and lemon oils were encapsulated in the films as potential active substances. Glycerol was used to induce plasticity and surfactants were added to improve the dispersion of EOs in the NaAlg matrix. The topography, chemical composition, mechanical properties, and humidity resistance of the films are presented analytically. Antimicrobial tests were conducted on films containing different percentages of EOs against Escherichia coli bacteria and Candida albicans fungi, and the films were characterized as effective or not. Such diverse types of essential oil-fortified alginate films can find many applications mainly as disposable wound dressings but also in food packaging, medical device protection and disinfection, and indoor air quality improvement materials, to name a few.
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Affiliation(s)
- Ioannis Liakos
- Nanophysics, Istituto Italiano di Tecnologia (IIT), via Morego 30, 16163 Genova, Italy.
| | - Loris Rizzello
- Center for Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia @UniLe, via Barsanti, 73010 Arnesano, Lecce, Italy
| | - David J Scurr
- University of Nottingham, School of Pharmacy, Biophysics and Surface Analysis, Boots Science Building, University Park, Nottingham NG7 2RD, UK
| | - Pier Paolo Pompa
- Center for Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia @UniLe, via Barsanti, 73010 Arnesano, Lecce, Italy
| | - Ilker S Bayer
- Nanophysics, Istituto Italiano di Tecnologia (IIT), via Morego 30, 16163 Genova, Italy.
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97
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Valentini P, Fiammengo R, Sabella S, Gariboldi M, Maiorano G, Cingolani R, Pompa PP. Gold-nanoparticle-based colorimetric discrimination of cancer-related point mutations with picomolar sensitivity. ACS Nano 2013; 7:5530-8. [PMID: 23697628 DOI: 10.1021/nn401757w] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Point mutations in the Kirsten rat sarcoma viral oncogene homologue (KRAS) gene are being increasingly recognized as important diagnostic and prognostic markers in cancer. In this work, we describe a rapid and low-cost method for the naked-eye detection of cancer-related point mutations in KRAS based on gold nanoparticles. This simple colorimetric assay is sensitive (limit of detection in the low picomolar range), instrument-free, and employs nonstringent room temperature conditions due to a combination of DNA-conjugated gold nanoparticles, a probe design which exploits cooperative hybridization for increased binding affinity, and signal enhancement on the surface of magnetic beads. Additionally, the scheme is suitable for point-of-care applications, as it combines naked-eye detection, small sample volumes, and isothermal (PCR-free) amplification.
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Affiliation(s)
- Paola Valentini
- Center for Bio-Molecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia, Via Barsanti-73010 Arnesano (Lecce), Italy
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98
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Abstract
The understanding of the interactions between biological systems and nanoengineered devices is crucial in several research fields, including tissue engineering, biomechanics, synthetic biology and biomedical devices. This review discusses the current knowledge of the interactions between bacteria and abiotic nanostructured substrates. First, the effects of randomly organized nanoscale topography on bacterial adhesion and persistence are described. Second, the interactions between microorganisms and highly organized/ordered micro- and nano-patterns are discussed. Finally, we survey the most promising approaches for the fabrication of silver polymeric nanocomposites, which have important applications as antimicrobial materials. The advantages, drawbacks and limitations of such nanotechnologies are critically discussed in view of potential future applications.
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Affiliation(s)
- Loris Rizzello
- Center for Bio-Molecular Nanotechnology, Istituto Italiano di Tecnologia, Via Barsanti, 1-73010 Arnesano (Lecce), Italy
| | - Roberto Cingolani
- Istituto Italiano di Tecnologia, Central Research Laboratories, Via Morego, 30-16136 Genova, Italy
| | - Pier Paolo Pompa
- Center for Bio-Molecular Nanotechnology, Istituto Italiano di Tecnologia, Via Barsanti, 1-73010 Arnesano (Lecce), Italy.
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99
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Brunetti V, Chibli H, Fiammengo R, Galeone A, Malvindi MA, Vecchio G, Cingolani R, Nadeau JL, Pompa PP. InP/ZnS as a safer alternative to CdSe/ZnS core/shell quantum dots: in vitro and in vivo toxicity assessment. Nanoscale 2013; 5:307-17. [PMID: 23165345 DOI: 10.1039/c2nr33024e] [Citation(s) in RCA: 181] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
We show that water soluble InP/ZnS core/shell QDs are a safer alternative to CdSe/ZnS QDs for biological applications, by comparing their toxicity in vitro (cell culture) and in vivo (animal model Drosophila). By choosing QDs with comparable physical and chemical properties, we find that cellular uptake and localization are practically identical for these two nanomaterials. Toxicity of CdSe/ZnS QDs appears to be related to the release of poisonous Cd(2+) ions and indeed we show that there is leaching of Cd(2+) ions from the particle core despite the two-layer ZnS shell. Since an almost identical amount of In(III) ions is observed to leach from the core of InP/ZnS QDs, their very low toxicity as revealed in this study hints at a much lower intrinsic toxicity of indium compared to cadmium.
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Affiliation(s)
- Virgilio Brunetti
- Istituto Italiano di Tecnologia (IIT), Center for Bio-Molecular Nanotechnologies@UniLe, Via Barsanti, 73010 Arnesano, Lecce, Italy
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100
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Persano S, Valentini P, Kim JH, Pompa PP. Colorimetric detection of human papilloma virus by double isothermal amplification. Chem Commun (Camb) 2013; 49:10605-7. [DOI: 10.1039/c3cc45459b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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