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Parmigiani M, Schifano V, Taglietti A, Galinetto P, Albini B. Increasing gold nanostars SERS response with silver shells: a surface-based seed-growth approach. NANOTECHNOLOGY 2024; 35:195603. [PMID: 38306966 DOI: 10.1088/1361-6528/ad25c9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 02/02/2024] [Indexed: 02/04/2024]
Abstract
A straightforward method to prepare surface enhanced Raman spectroscopy (SERS) chips containing a monolayer of silver coated gold nanostars (GNS@Ag) grafted on a glass surface is introduced. The synthetic approach is based on a seed growth method performed directly on surface, using GNS as seeds, and involving a green pathway, which only uses silver nitate, ascorbic acid and water, to grow the silver shell. The preparation was optimized to maximize signals obtaining a SERS response of one order of magnitude greater than that from the original GNS based chips, offering in the meantime good homogeneity and acceptable reproducibility. The proposed GNS@Ag SERS chips are able to detect pesticide thiram down to 20 ppb.
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Affiliation(s)
- Miriam Parmigiani
- Dipartimento di Chimica, Sezione di Chimica Generale, Università di Pavia, viale Taramelli, 12-I-27100 Pavia-Italy
| | - Veronica Schifano
- Dipartimento di Chimica, Sezione di Chimica Generale, Università di Pavia, viale Taramelli, 12-I-27100 Pavia-Italy
| | - Angelo Taglietti
- Dipartimento di Chimica, Sezione di Chimica Generale, Università di Pavia, viale Taramelli, 12-I-27100 Pavia-Italy
| | - Pietro Galinetto
- Dipartimento di Fisica, Università di Pavia, Via Bassi 6,-I-27100 Pavia-Italy
| | - Benedetta Albini
- Dipartimento di Fisica, Università di Pavia, Via Bassi 6,-I-27100 Pavia-Italy
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2
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Doveri L, Taglietti A, Grisoli P, Pallavicini P, Dacarro G. Dual mode antibacterial surfaces based on Prussian blue and silver nanoparticles. Dalton Trans 2023; 52:452-460. [PMID: 36525102 DOI: 10.1039/d2dt03058f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Prussian Blue (PB) is an inexpensive, biocompatible, photothermally active material. In this paper, self-assembled monolayers of PB nanoparticles were grafted on a glass surface, protected with a thin layer of silica and decorated with spherical silver nanoparticles. This combination of a photothermally active nanomaterial, PB, and an intrinsically antibacterial one, silver, leads to a versatile coating that can be used for medical devices and implants. The intrinsic antibacterial action of nanosilver, always active over time, can be enhanced on demand by switching on the photothermal effect of PB using near infrared (NIR) radiation, which has a good penetration depth through tissues and low side effects. Glass surfaces functionalized by this layer-by-layer approach have been characterized for their morphology and composition, and their intrinsic and photothermal antibacterial effect was studied against Gram+ and Gram- planktonic bacteria.
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Affiliation(s)
- Lavinia Doveri
- University of Pavia - Department of Chemistry and Center for Health Technologies; Via Taramelli 12, I-27100 Pavia, Italy.
| | - Angelo Taglietti
- University of Pavia - Department of Chemistry and Center for Health Technologies; Via Taramelli 12, I-27100 Pavia, Italy.
| | - Pietro Grisoli
- University of Pavia - Department of Drug Science; Via Taramelli 12, I-27100 Pavia, Italy
| | - Piersandro Pallavicini
- University of Pavia - Department of Chemistry and Center for Health Technologies; Via Taramelli 12, I-27100 Pavia, Italy.
| | - Giacomo Dacarro
- University of Pavia - Department of Chemistry and Center for Health Technologies; Via Taramelli 12, I-27100 Pavia, Italy.
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3
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Gazzola V, Grisoli P, Amendola V, Dacarro G, Mangano C, Pallavicini P, Poggi A, Rossi S, Vigani B, Taglietti A. A Supramolecular Approach to Antimicrobial Surfaces. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27175731. [PMID: 36080495 PMCID: PMC9457607 DOI: 10.3390/molecules27175731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/02/2022] [Accepted: 09/03/2022] [Indexed: 11/28/2022]
Abstract
In this paper, we report on the preparation of Imidazole-functionalized glass surfaces, demonstrating the ability of a dinuclear Cu(II) complex of a macrocyclic ligand to give a “cascade” interaction with the deprotonated forms of grafted imidazole moieties. In this way, we realized a prototypal example of an antimicrobial surface based on a supramolecular approach, obtaining a neat microbicidal effect using low amounts of the described copper complex.
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Affiliation(s)
- Valentina Gazzola
- Department of Chemistry, University of Pavia, Viale Torquato Taramelli 12, 27100 Pavia, Italy
| | - Pietro Grisoli
- Department of Drug Sciences, University of Pavia, Viale Torquato Taramelli 12, 27100 Pavia, Italy
| | - Valeria Amendola
- Department of Chemistry, University of Pavia, Viale Torquato Taramelli 12, 27100 Pavia, Italy
| | - Giacomo Dacarro
- Department of Chemistry, University of Pavia, Viale Torquato Taramelli 12, 27100 Pavia, Italy
| | - Carlo Mangano
- Department of Chemistry, University of Pavia, Viale Torquato Taramelli 12, 27100 Pavia, Italy
| | - Piersandro Pallavicini
- Department of Chemistry, University of Pavia, Viale Torquato Taramelli 12, 27100 Pavia, Italy
| | - Antonio Poggi
- Department of Chemistry, University of Pavia, Viale Torquato Taramelli 12, 27100 Pavia, Italy
| | - Silvia Rossi
- Department of Drug Sciences, University of Pavia, Viale Torquato Taramelli 12, 27100 Pavia, Italy
| | - Barbara Vigani
- Department of Drug Sciences, University of Pavia, Viale Torquato Taramelli 12, 27100 Pavia, Italy
| | - Angelo Taglietti
- Department of Chemistry, University of Pavia, Viale Torquato Taramelli 12, 27100 Pavia, Italy
- Correspondence:
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Geissel FJ, Platania V, Gogos A, Herrmann IK, Belibasakis GN, Chatzinikolaidou M, Sotiriou GA. Antibiofilm activity of nanosilver coatings against Staphylococcus aureus. J Colloid Interface Sci 2022; 608:3141-3150. [PMID: 34815083 DOI: 10.1016/j.jcis.2021.11.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/05/2021] [Accepted: 11/09/2021] [Indexed: 11/28/2022]
Abstract
Implant infections due to bacterial biofilms constitute a major healthcare challenge today. One way to address this clinical need is to modify the implant surface with an antimicrobial nanomaterial. Among such nanomaterials, nanosilver is arguably the most powerful one, due to its strong and broad antimicrobial activity. However, there is still a lack of understanding on how physicochemical characteristics of nanosilver coatings affect their antibiofilm activity. More specifically, the contributions of silver (Ag)+ ion-mediated vs. contact-based mechanisms to the observed antimicrobial activity are yet to be elucidated. To address this knowledge gap, we produce here nanosilver coatings on substrates by flame aerosol direct deposition that allows for facile control of the coating composition and Ag particle size. We systematically study the effect of (i) nanosilver content in composite Ag silica (SiO2) coatings from 0 (pure SiO2) up to 50 wt%, (ii) the Ag particle size and (iii) the coating thickness on the antibiofilm activity against Staphylococcus aureus (S. aureus), a clinically-relevant pathogen often present on the surface of surgically-installed implants. We show that the Ag+ ion concentration in solution largely drives the observed antibiofilm effect independently of Ag size and coating thickness. Furthermore, co-incubation of both pure SiO2 and nanosilver coatings in the same well also reveals that the antibiofilm effect stems predominantly from the released Ag+ ions, which is especially pronounced for coatings featuring the smallest Ag particle sizes, rather than direct bacterial contact inhibition. We also examine the biocompatibility of the developed nanosilver coatings in terms of pre-osteoblastic cell viability and proliferation, comparing it to that of pure SiO2. This study lays the foundation for the rational design of nanosilver-based antibiofilm implant coatings.
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Affiliation(s)
- Felix J Geissel
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Varvara Platania
- Department of Materials Science and Technology, University of Crete, Heraklion, Greece
| | - Alexander Gogos
- Nanoparticle Systems Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Switzerland and Particles Biology Interactions Laboratory, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland
| | - Inge K Herrmann
- Nanoparticle Systems Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Switzerland and Particles Biology Interactions Laboratory, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland
| | - Georgios N Belibasakis
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Maria Chatzinikolaidou
- Department of Materials Science and Technology, University of Crete, Heraklion, Greece; Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology Hellas (FORTH), Heraklion, Greece
| | - Georgios A Sotiriou
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden.
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5
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Efficient Route for the Preparation of Composite Resin Incorporating Silver Nanoparticles with Enhanced Antibacterial Properties. NANOMATERIALS 2022; 12:nano12030471. [PMID: 35159816 PMCID: PMC8839352 DOI: 10.3390/nano12030471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/23/2022] [Accepted: 01/26/2022] [Indexed: 12/04/2022]
Abstract
An efficient and facile route for the immobilization of silver (Ag) nanoparticles (NPs) in anion exchange resin beads with different silver loading is proposed. In this method, BH4− ions were first introduced into chloride-form resin through an ion exchange process with Cl− ions, followed by in-situ chemical reduction of Ag+ ions at the surface of the resin to form metallic Ag nanoparticles. Morphology and structure of the resulting Ag-resin nanocomposites were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), Fourier transform infra-red (FTIR), inductively coupled plasma-optical emission spectrometry (ICP-OES), and thermogravimetry analysis (TGA). The results confirmed the presence of smaller diameter Ag NPs incorporated into the resin beads having an average diameter on the order of 10 nm with a few Ag NP clusters of 20–100 nm. The nanoparticles were homogeneously distributed throughout the resin. There were no dramatic increases in average particle sizes even at very high Ag loadings. The resin retained its structure and stability, allowing higher stability of immobilized AgNPs than the colloidal ones. The Ag-loaded resins made with 50 mM AgNO3 were tested for antibacterial activity in vitro against Escherichia coli (E. coli) as a model microbial contaminant in water. Results showed greater than 99% bacterial inhibition within 3 h of exposure. The resin form offers greater ease of handling, long-term storage at room temperature, reusability in repeated reactions, and reduces the risk of environmental contamination.
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Construction and Characterizations of Antibacterial Surfaces Based on Self-Assembled Monolayer of Antimicrobial Peptides (Pac-525) Derivatives on Gold. COATINGS 2021. [DOI: 10.3390/coatings11091014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background: Infection that is related to implanted biomaterials is a serious issue in the clinic. Antimicrobial peptides (AMPs) have been considered as an ideal alternative to traditional antibiotic drugs, for the treatment of infections, while some problems, such as aggregation and protein hydrolysis, are still the dominant concerns that compromise their antimicrobial efficiency in vivo. Methods: In this study, antimicrobial peptides underwent self-assembly on gold substrates, forming good antibacterial surfaces, with stable antibacterial behavior. The antimicrobial ability of AMPs grafted on the surfaces, with or without glycine spaces or a primer layer, was evaluated. Results: Specifically, three Pac-525 derivatives, namely, Ac-CGn-KWRRWVRWI-NH2 (n = 0, 2, or 6) were covalently grafted onto gold substrates via the self-assembling process for inhibiting the growth of Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). Furthermore, the alkanethiols HS(CH)10SH were firstly self-assembled into monolayers, as a primer layer (SAM-SH) for the secondary self-assembly of Pac-525 derivatives, to effectively enhance the bactericidal performance of the grafted AMPs. The -(CH)10-S-S-G6Pac derivative was highly effective against S. aureus and E. coli, and reduced the viable amount of E. coli and S. aureus to 0.4% and 33.2%, respectively, after 24 h of contact. In addition, the immobilized AMPs showed good biocompatibility, promoting bone marrow stem cell proliferation. Conclusion: the self-assembled monolayers of the Pac-525 derivatives have great potential as a novel therapeutic method for the treatment of implanted biomaterial infections.
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7
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PVA Films with Mixed Silver Nanoparticles and Gold Nanostars for Intrinsic and Photothermal Antibacterial Action. NANOMATERIALS 2021; 11:nano11061387. [PMID: 34070273 PMCID: PMC8225135 DOI: 10.3390/nano11061387] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/18/2021] [Accepted: 05/21/2021] [Indexed: 02/07/2023]
Abstract
PVA films with embedded either silver nanoparticles (AgNP), NIR-absorbing photothermal gold nanostars (GNS), or mixed AgNP+GNS were prepared in this research. The optimal conditions to obtain stable AgNP+GNS films with intact, long lasting photothermal GNS were obtained. These require coating of GNS with a thiolated polyethylene glycol (PEG) terminated with a carboxylic acid function, acting as reticulant in the film formation. In the mixed AgNP+GNS films, the total noble metal content is <0.15% w/w and in the Ag films < 0.025% w/w. The slow but prolonged Ag+ release from film-embedded AgNP (8–11% of total Ag released after 24 h, in the mixed films) results in a very strong microbicidal effect against planktonic Escherichia coli and Staphylococcus aureus bacterial strains (the release of Au from films is instead negligible). Beside this intrinsic effect, the mixed films also exert an on-demand, fast hyperthermal bactericidal action, switched on by NIR laser irradiation (800 nm, i.e., inside the biotransparent window) of the localized surface plasmon resonance (LSPR) absorption bands of GNS. Temperature increases of 30 °C are obtained using irradiances as low as 0.27 W/cm2. Moreover, 80–90% death on both strains was observed in bacteria in contact with the GNS-containing films, after 30 min of irradiation. Finally, the biocompatibility of all films was verified on human fibroblasts, finding negligible viability decrease in all cases.
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8
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Babutan I, Lucaci AD, Botiz I. Antimicrobial Polymeric Structures Assembled on Surfaces. Polymers (Basel) 2021; 13:1552. [PMID: 34066135 PMCID: PMC8150949 DOI: 10.3390/polym13101552] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 05/08/2021] [Accepted: 05/09/2021] [Indexed: 12/16/2022] Open
Abstract
Pathogenic microbes are the main cause of various undesired infections in living organisms, including humans. Most of these infections are favored in hospital environments where humans are being treated with antibiotics and where some microbes succeed in developing resistance to such drugs. As a consequence, our society is currently researching for alternative, yet more efficient antimicrobial solutions. Certain natural and synthetic polymers are versatile materials that have already proved themselves to be highly suitable for the development of the next-generation of antimicrobial systems that can efficiently prevent and kill microbes in various environments. Here, we discuss the latest developments of polymeric structures, exhibiting (reinforced) antimicrobial attributes that can be assembled on surfaces and coatings either from synthetic polymers displaying antiadhesive and/or antimicrobial properties or from blends and nanocomposites based on such polymers.
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Affiliation(s)
- Iulia Babutan
- Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, 42 Treboniu Laurian Str., 400271 Cluj-Napoca, Romania;
- Faculty of Physics, Babeș-Bolyai University, 1 M. Kogălniceanu Str., 400084 Cluj-Napoca, Romania
| | - Alexandra-Delia Lucaci
- George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, 38 Gheorghe Marinescu Str., 540142 Târgu Mureș, Romania;
| | - Ioan Botiz
- Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, 42 Treboniu Laurian Str., 400271 Cluj-Napoca, Romania;
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9
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Barzan G, Rocchetti L, Portesi C, Pellegrino F, Taglietti A, Rossi AM, Giovannozzi AM. Surface Minimal Bactericidal Concentration: A comparative study of active glasses functionalized with different-sized silver nanoparticles. Colloids Surf B Biointerfaces 2021; 204:111800. [PMID: 33945966 DOI: 10.1016/j.colsurfb.2021.111800] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 04/20/2021] [Accepted: 04/26/2021] [Indexed: 11/27/2022]
Abstract
In this work the quantification of antimicrobial properties of differently sized AgNPs immobilized on a surface was studied. Three different sizes of spheroidal AgNPs with a diameter of (6, 30 and 52) nm were synthetized and characterized with UV-vis, SEM, TEM and ICP-MS. The MIC (Minimal Inhibitory Concentration) and MBC (Minimal Bactericidal Concentration) against Escherichia coli were investigated. Then, the antibacterial efficacy (R) of amino-silanized glasses coated with different amounts of the three sizes of AgNPs were quantified by international standard ISO 22196 adapted protocol against E. coli, clarifying the relationship between size and antibacterial properties of immobilized AgNPs on a surface. The total amount of silver present on glasses with an R ∼ 6 for each AgNPs size was quantified with ICP-MS and this was considered the Surface MBC (SMBC), which were found to be (0.023, 0.026 and 0.034) μg/cm2 for (6, 30 and 52) nm AgNPs, respectively. Thus, this study demonstrates that active surfaces with a bactericidal effect at least ≥ 99.9999 % could be obtained using an amount of silver almost 100 times lower than the MBC found for colloidal AgNPs. The immobilization reduces the aggregation phenomena normally occuring in liquid media, maximizing the exposed specific superficial area of the AgNPs and their direct contact with bacterial cells. Starting from this glass model system, our work could broaden the way to the development of a wide range of antibacterial materials with very low amount of silver that can be safely applied in biomedical and food packaging fields.
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Affiliation(s)
- Giulia Barzan
- Quantum Metrology and Nanotechnology Division, Istituto Nazionale di Ricerca Metrologica (INRiM), Strada delle Cacce, 91, 10135, Turin, Italy; Departement of Electronics and Telecommunications, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129, Turin, Italy
| | - Luca Rocchetti
- Department of Chemistry and NIS Inter-Departmental Centre, University of Torino, Via Pietro Giuria, 9, 10125, Turin, Italy
| | - Chiara Portesi
- Quantum Metrology and Nanotechnology Division, Istituto Nazionale di Ricerca Metrologica (INRiM), Strada delle Cacce, 91, 10135, Turin, Italy
| | - Francesco Pellegrino
- Department of Chemistry and NIS Inter-Departmental Centre, University of Torino, Via Pietro Giuria, 9, 10125, Turin, Italy
| | - Angelo Taglietti
- Department of Chemistry, General Chemistry Section, University of Pavia, viale Taramelli, 12, 27100, Pavia, Italy
| | - Andrea Mario Rossi
- Quantum Metrology and Nanotechnology Division, Istituto Nazionale di Ricerca Metrologica (INRiM), Strada delle Cacce, 91, 10135, Turin, Italy
| | - Andrea Mario Giovannozzi
- Quantum Metrology and Nanotechnology Division, Istituto Nazionale di Ricerca Metrologica (INRiM), Strada delle Cacce, 91, 10135, Turin, Italy.
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10
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Fast dissolution of silver nanoparticles at physiological pH. J Colloid Interface Sci 2020; 563:177-188. [DOI: 10.1016/j.jcis.2019.12.081] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 12/16/2019] [Accepted: 12/17/2019] [Indexed: 11/23/2022]
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Self-Assembled Monolayers of Copper Sulfide Nanoparticles on Glass as Antibacterial Coatings. NANOMATERIALS 2020; 10:nano10020352. [PMID: 32085548 PMCID: PMC7075189 DOI: 10.3390/nano10020352] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 02/10/2020] [Accepted: 02/14/2020] [Indexed: 12/12/2022]
Abstract
We developed an easy and reproducible synthetic method to graft a monolayer of copper sulfide nanoparticles (CuS NP) on glass and exploited their particular antibacterial features. Samples were fully characterized showing a good stability, a neat photo-thermal effect when irradiated in the Near InfraRed (NIR) region (in the so called “biological window”), and the ability to release controlled quantities of copper in water. The desired antibacterial activity is thus based on two different mechanisms: (i) slow and sustained copper release from CuS NP-glass samples, (ii) local temperature increase caused by a photo-thermal effect under NIR laser irradiation of CuS NP–glass samples. This behavior allows promising in vivo applications to be foreseen, ensuring a “static” antibacterial protection tailored to fight bacterial adhesion in the critical timescale of possible infection and biofilm formation. This can be reinforced, when needed, by a photo-thermal action switchable on demand by an NIR light.
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12
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Rovati D, Albini B, Galinetto P, Grisoli P, Bassi B, Pallavicini P, Dacarro G, Taglietti A. High Stability Thiol-Coated Gold Nanostars Monolayers with Photo-Thermal Antibacterial Activity and Wettability Control. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1288. [PMID: 31505833 PMCID: PMC6781089 DOI: 10.3390/nano9091288] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/05/2019] [Accepted: 09/06/2019] [Indexed: 11/19/2022]
Abstract
The adhesion and proliferation of bacteria on abiotic surfaces pose challenges in both health care and industrial applications. Gold nanostars (GNSs) monolayers grafted on glass have demonstrated to exert antibacterial action due to their photo-thermal features. Here, these GNS layers were further functionalized using thiols monolayers, in order to impart different wettability to the surfaces and thus adding a feature that could help to fight bacterial proliferation. Thiol that has different functional groups was used and the thiol-protected surfaces were characterized by means of UV-vis spectroscopy, contact angles, SEM and surface enhanced Raman spectroscopy (SERS). We verified that (i) coating with the proper thiol allows us to impart high hydrophilicity or hydrophobicity to the surfaces (with contact angle values ranging from 10 to 120°); (ii) GNS monolayers are strongly stabilized by functionalization with thiols, with shelf stability increasing from a few weeks to more than three months and (iii) photo-thermal features and subsequent antibacterial effects caused by hyperthermia are not changed by thiols layers, allowing us to kill at least 99.99% of representative bacterial strains.
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Affiliation(s)
- Davide Rovati
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Benedetta Albini
- Department of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, Italy
| | - Pietro Galinetto
- Department of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, Italy
| | - Pietro Grisoli
- Department of Drug Sciences, University of Pavia, Viale Taramelli 14, 27100 Pavia, Italy
| | - Barbara Bassi
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | | | - Giacomo Dacarro
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Angelo Taglietti
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
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13
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Taglietti A, Dacarro G, Barbieri D, Cucca L, Grisoli P, Patrini M, Arciola CR, Pallavicini P. High Bactericidal Self-Assembled Nano-Monolayer of Silver Sulfadiazine on Hydroxylated Material Surfaces. MATERIALS 2019; 12:ma12172761. [PMID: 31466275 PMCID: PMC6748069 DOI: 10.3390/ma12172761] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 08/17/2019] [Accepted: 08/19/2019] [Indexed: 02/06/2023]
Abstract
Anti-infective surfaces are a modern strategy to address the issue of infection related to the clinical use of materials for implants and medical devices. Nanocoatings, with their high surface/mass ratio, lend themselves to being mono-layered on the material surfaces to release antibacterial molecules and prevent bacterial adhesion. Here, a “layer-by-layer” (LbL) approach to achieve a self-assembled monolayer (SAM) with high microbicidal effect on hydroxylated surfaces is presented, exploiting the reaction between a monolayer of thiolic functions on glass/quartz surfaces and a newly synthesized derivative of the well-known antibacterial compound silver sulfadiazine. Using several different techniques, it is demonstrated that a nano-monolayer of silver sulfadiazine is formed on the surfaces. The surface-functionalized materials showed efficient bactericidal effect against both Gram-positive and Gram-negative bacteria. Interestingly, bactericidal self-assembled nano-monolayers of silver sulfadiazine could be achieved on a large variety of materials by simply pre-depositing glass-like SiO2 films on their surfaces.
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Affiliation(s)
- Angelo Taglietti
- Dipartimento di Chimica, Sezione di Chimica Generale, Università di Pavia, viale Taramelli 12, 27100 Pavia, Italy.
| | - Giacomo Dacarro
- Dipartimento di Chimica, Sezione di Chimica Generale, Università di Pavia, viale Taramelli 12, 27100 Pavia, Italy.
| | - Daniele Barbieri
- Dipartimento di Chimica, Sezione di Chimica Generale, Università di Pavia, viale Taramelli 12, 27100 Pavia, Italy
| | - Lucia Cucca
- Dipartimento di Chimica, Sezione di Chimica Generale, Università di Pavia, viale Taramelli 12, 27100 Pavia, Italy
| | - Pietro Grisoli
- Dipartimento di Scienze del Farmaco, Università di Pavia, viale Taramelli 10, 27100 Pavia, Italy
| | - Maddalena Patrini
- Dipartimento di Fisica, "A. Volta", Università di Pavia, via Bassi 6, 27100 Pavia, Italy
| | - Carla Renata Arciola
- Laboratorio di Patologia delle Infezioni Associate all'Impianto, IRCCS Istituto Ortopedico Rizzoli, via di Barbiano 1/10, 40136 Bologna, Italy.
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, via San Giacomo 14, 40126 Bologna, Italy.
| | - Piersandro Pallavicini
- Dipartimento di Chimica, Sezione di Chimica Generale, Università di Pavia, viale Taramelli 12, 27100 Pavia, Italy
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14
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Pavoski G, Baldisserotto DLS, Maraschin T, Brum LFW, dos Santos C, dos Santos JHZ, Brandelli A, Galland GB. Silver nanoparticles encapsulated in silica: Synthesis, characterization and application as antibacterial fillers in the ethylene polymerization. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.04.055] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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15
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Abstract
Antibacterial materials and surfaces designed and built using the toolbox of nanotechnology are becoming the object of an increasingly boosting interest, responding to the pan-drug resistant bacteria emergency [...]
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16
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Fahmy HM, Mosleh AM, Elghany AA, Shams-Eldin E, Abu Serea ES, Ali SA, Shalan AE. Coated silver nanoparticles: synthesis, cytotoxicity, and optical properties. RSC Adv 2019; 9:20118-20136. [PMID: 35514687 PMCID: PMC9065456 DOI: 10.1039/c9ra02907a] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 06/08/2019] [Indexed: 11/21/2022] Open
Abstract
Coated silver nanoparticles (AgNPs) have recently become a topic of interest due to the fact that they have several applications such as in electronic, antimicrobial, industrial, optical, and medical fields as biosensors and drug delivery systems. However, the use of AgNPs in medical fields remains somewhat limited due to their probable cytotoxic effect. Researchers have succeeded in reducing the toxicity of silver particles by coating them with different substances. Generally, the coating of AgNPs leads to change in their properties depending on the type of the coating material as well as the layer thickness. This review covers the state-of-the-art technologies behind (a) the synthesis of coated AgNPs including coating methods and coating materials, (b) the cytotoxicity of coated AgNPs and (c) the optical properties of coated AgNPs. Coated silver nanoparticles (AgNPs) have recently become a topic of interest due to the fact that they have several applications such as in electronic, antimicrobial, industrial, optical, and medical fields as biosensors and drug delivery systems.![]()
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Affiliation(s)
| | | | - Aya Abd Elghany
- Biochemistry Department
- Faculty of Science
- Cairo University
- Egypt
| | - Engy Shams-Eldin
- Food Technology Research Institute
- Agriculture Research Center
- Giza
- Egypt
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17
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Pallavicini P, Dacarro G, Taglietti A. Self-Assembled Monolayers of Silver Nanoparticles: From Intrinsic to Switchable Inorganic Antibacterial Surfaces. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800709] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | - Giacomo Dacarro
- Department of Chemistry; University of Pavia; viale Taramelli, 12 - 27100 Pavia Italy
| | - Angelo Taglietti
- Department of Chemistry; University of Pavia; viale Taramelli, 12 - 27100 Pavia Italy
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18
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Elena P, Miri K. Formation of contact active antimicrobial surfaces by covalent grafting of quaternary ammonium compounds. Colloids Surf B Biointerfaces 2018; 169:195-205. [DOI: 10.1016/j.colsurfb.2018.04.065] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 04/24/2018] [Accepted: 04/29/2018] [Indexed: 12/13/2022]
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19
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Pavoski G, Kalikoski R, Souza G, Brum LFW, dos Santos C, Abo Markeb A, dos Santos JHZ, Font X, dell'Erba I, Galland GB. Synthesis of polyethylene/silica-silver nanocomposites with antibacterial properties by in situ polymerization. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.07.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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20
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Taglietti A, Grisoli P, Dacarro G, Gattesco A, Mangano C, Pallavicini P. Grafted monolayers of the neutral Cu( ii) complex of a dioxo-2,3,2 ligand: surfaces with decreased antibacterial action. NEW J CHEM 2018. [DOI: 10.1039/c7nj04601d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A monolayer of the neutral Cu2+ complex of a silane-bearing diamino–diamido ligand is formed on glass, exhibiting (decreased) antibacterial properties.
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Affiliation(s)
- A. Taglietti
- Dipartimento di Chimica
- Università di Pavia
- Pavia
- Italy
| | - P. Grisoli
- Dipartimento di Scienze del Farmaco
- Università di Pavia
- Pavia
- Italy
| | - G. Dacarro
- Dipartimento di Chimica
- Università di Pavia
- Pavia
- Italy
| | - A. Gattesco
- Dipartimento di Chimica
- Università di Pavia
- Pavia
- Italy
| | - C. Mangano
- Dipartimento di Chimica
- Università di Pavia
- Pavia
- Italy
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21
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Kianfar AH, Tavanapour S, Eskandari K, Azarian MH, Mahmood WAK, Bagheri M. Experimental and theoretical structural determination, spectroscopy and electrochemistry of cobalt (III) Schiff base complexes: immobilization of complexes onto Montmorillonite-K10 nanoclay. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2017. [DOI: 10.1007/s13738-017-1238-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Dacarro G, Grisoli P, Borzenkov M, Milanese C, Fratini E, Ferraro G, Taglietti A, Pallavicini P. Self-assembled monolayers of Prussian blue nanoparticles with photothermal effect. Supramol Chem 2017. [DOI: 10.1080/10610278.2017.1372582] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | - Pietro Grisoli
- Drug Science Department, University of Pavia, Pavia, Italy
| | - Mykola Borzenkov
- Department of Medicine and Surgery, Center of Nanomedicine, University of Milano Bicocca, Milano, Italy
| | | | - Emiliano Fratini
- Department of Chemistry ‘Ugo Schiff’ and CSGI, University of Firenze, Firenze, Italy
| | - Giovanni Ferraro
- Department of Chemistry ‘Ugo Schiff’ and CSGI, University of Firenze, Firenze, Italy
| | | | - Piersandro Pallavicini
- Department of Chemistry, University of Pavia, Pavia, Italy
- CHT (Centre for Health Technology), University of Pavia, Pavia, Italy
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23
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Pallavicini P, Bassi B, Chirico G, Collini M, Dacarro G, Fratini E, Grisoli P, Patrini M, Sironi L, Taglietti A, Moritz M, Sorzabal-Bellido I, Susarrey-Arce A, Latter E, Beckett AJ, Prior IA, Raval R, Diaz Fernandez YA. Modular approach for bimodal antibacterial surfaces combining photo-switchable activity and sustained biocidal release. Sci Rep 2017; 7:5259. [PMID: 28701753 PMCID: PMC5507905 DOI: 10.1038/s41598-017-05693-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 05/22/2017] [Indexed: 02/06/2023] Open
Abstract
Photo-responsive antibacterial surfaces combining both on-demand photo-switchable activity and sustained biocidal release were prepared using sequential chemical grafting of nano-objects with different geometries and functions. The multi-layered coating developed incorporates a monolayer of near-infrared active silica-coated gold nanostars (GNS) decorated by silver nanoparticles (AgNP). This modular approach also enables us to unravel static and photo-activated contributions to the overall antibacterial performance of the surfaces, demonstrating a remarkable synergy between these two mechanisms. Complementary microbiological and imaging evaluations on both planktonic and surface-attached bacteria provided new insights on these distinct but cooperative effects.
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Affiliation(s)
- Piersandro Pallavicini
- Department of Chemistry and Centre for Health Technology, University of Pavia, Pavia, Italy.
| | - Barbara Bassi
- Department of Chemistry and Centre for Health Technology, University of Pavia, Pavia, Italy
| | | | | | - Giacomo Dacarro
- Department of Chemistry and Centre for Health Technology, University of Pavia, Pavia, Italy
| | - Emiliano Fratini
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Florence, Italy
| | - Pietro Grisoli
- Department of Pharmaceutical Sciences, University of Pavia, Pavia, Italy
| | | | - Laura Sironi
- Department of Physics, University Milano-Bicocca, Milano, Italy
| | - Angelo Taglietti
- Department of Chemistry and Centre for Health Technology, University of Pavia, Pavia, Italy.
| | - Marcel Moritz
- Open Innovation Hub for Antimicrobial Surfaces, University of Liverpool, Liverpool, UK
| | | | - Arturo Susarrey-Arce
- Open Innovation Hub for Antimicrobial Surfaces, University of Liverpool, Liverpool, UK
| | - Edward Latter
- Open Innovation Hub for Antimicrobial Surfaces, University of Liverpool, Liverpool, UK
| | - Alison J Beckett
- Biomedical EM Unit, School of Biomedical Sciences, University of Liverpool, Liverpool, UK
| | - Ian A Prior
- Biomedical EM Unit, School of Biomedical Sciences, University of Liverpool, Liverpool, UK
| | - Rasmita Raval
- Open Innovation Hub for Antimicrobial Surfaces, University of Liverpool, Liverpool, UK.
| | - Yuri A Diaz Fernandez
- Open Innovation Hub for Antimicrobial Surfaces, University of Liverpool, Liverpool, UK.
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24
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Yu J, Lu S, Xu W, He G, He D. Synthesis of gold/polydopamine composite surfaces on glass substrates for localized surface plasmon resonance and catalysis. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3785] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jianying Yu
- School of Chemistry and Chemical EngineeringBeijing Institute of Technology Beijing 100081 People's Republic of China
| | - Shixiang Lu
- School of Chemistry and Chemical EngineeringBeijing Institute of Technology Beijing 100081 People's Republic of China
| | - Wenguo Xu
- School of Chemistry and Chemical EngineeringBeijing Institute of Technology Beijing 100081 People's Republic of China
| | - Ge He
- School of Chemistry and Chemical EngineeringBeijing Institute of Technology Beijing 100081 People's Republic of China
| | - Dongsheng He
- School of Mechanics, Civil Engineering and ArchitectureNorthwestern Polytechnical University Xi'an 710072 People's Republic of China
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25
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D'Agostino A, Taglietti A, Desando R, Bini M, Patrini M, Dacarro G, Cucca L, Pallavicini P, Grisoli P. Bulk Surfaces Coated with Triangular Silver Nanoplates: Antibacterial Action Based on Silver Release and Photo-Thermal Effect. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E7. [PMID: 28336841 PMCID: PMC5295197 DOI: 10.3390/nano7010007] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 12/05/2016] [Accepted: 12/30/2016] [Indexed: 01/17/2023]
Abstract
A layer of silver nanoplates, specifically synthesized with the desired localized surface plasmon resonance (LSPR) features, was grafted on amino-functionalized bulk glass surfaces to impart a double antibacterial action: (i) the well-known, long-term antibacterial effect based on the release of Ag⁺; (ii) an "on demand" action which can be switched on by the use of photo-thermal properties of silver nano-objects. Irradiation of these samples with a laser having a wavelength falling into the so called "therapeutic window" of the near infrared region allows the reinforcement, in the timescale of minutes, of the classical antibacterial effect of silver nanoparticles. We demonstrate how using the two actions allows for almost complete elimination of the population of two bacterial strains of representative Gram-positive and Gram-negative bacteria.
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Affiliation(s)
- Agnese D'Agostino
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
| | - Angelo Taglietti
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
| | - Roberto Desando
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
| | - Marcella Bini
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
| | - Maddalena Patrini
- Department of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, Italy.
| | - Giacomo Dacarro
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
- Department of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, Italy.
| | - Lucia Cucca
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
| | | | - Pietro Grisoli
- Department of Drug Sciences, University of Pavia, Viale Taramelli 14, 27100 Pavia, Italy.
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26
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Gagnon J, Clift MJD, Vanhecke D, Widnersson IE, Abram SL, Petri-Fink A, Caruso RA, Rothen-Rutishauser B, Fromm KM. Synthesis, characterization, antibacterial activity and cytotoxicity of hollow TiO2-coated CeO2nanocontainers encapsulating silver nanoparticles for controlled silver release. J Mater Chem B 2016; 4:1166-1174. [DOI: 10.1039/c5tb01917f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This novel type of nanocontainers offers the concept of potentially controlling silver delivery for the prevention of implant-associated infections.
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Affiliation(s)
- J. Gagnon
- Department of Chemistry and Fribourg Center for Nanomaterials
- University of Fribourg
- 1700 Fribourg
- Switzerland
- PFPC
| | - M. J. D. Clift
- Adolphe Merkle Institute
- University of Fribourg
- 1700 Fribourg
- Switzerland
| | - D. Vanhecke
- Adolphe Merkle Institute
- University of Fribourg
- 1700 Fribourg
- Switzerland
| | - I. E. Widnersson
- PFPC
- School of Chemistry
- The University of Melbourne
- Melbourne, Victoria 3010
- Australia
| | - S.-L. Abram
- Department of Chemistry and Fribourg Center for Nanomaterials
- University of Fribourg
- 1700 Fribourg
- Switzerland
| | - A. Petri-Fink
- Adolphe Merkle Institute
- University of Fribourg
- 1700 Fribourg
- Switzerland
| | - R. A. Caruso
- PFPC
- School of Chemistry
- The University of Melbourne
- Melbourne, Victoria 3010
- Australia
| | | | - K. M. Fromm
- Department of Chemistry and Fribourg Center for Nanomaterials
- University of Fribourg
- 1700 Fribourg
- Switzerland
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27
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Pallavicini P, Amendola V, Bergamaschi G, Cabrini E, Dacarro G, Rossi N, Taglietti A. A bistren cryptand with a remote thioether function: Cu(ii) complexation in solution and on the surface of gold nanostars. NEW J CHEM 2016. [DOI: 10.1039/c5nj03175c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A di-copper(ii) complex is formed in a bis-tren cage featuring a thioether function, capable of grafting on a monolayer of gold nanostars.
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Affiliation(s)
| | - Valeria Amendola
- Dipartimento di Chimica
- Università degli Studi di Pavia
- 27100 Pavia
- Italy
| | - Greta Bergamaschi
- Dipartimento di Chimica
- Università degli Studi di Pavia
- 27100 Pavia
- Italy
| | - Elisa Cabrini
- Dipartimento di Chimica
- Università degli Studi di Pavia
- 27100 Pavia
- Italy
| | - Giacomo Dacarro
- Dipartimento di Chimica
- Università degli Studi di Pavia
- 27100 Pavia
- Italy
- Dipartimento di Fisica
| | - Nadia Rossi
- Dipartimento di Chimica
- Università degli Studi di Pavia
- 27100 Pavia
- Italy
| | - Angelo Taglietti
- Dipartimento di Chimica
- Università degli Studi di Pavia
- 27100 Pavia
- Italy
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28
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Yuan M, Tanabe I, Bernard-Schaaf JM, Shi QY, Schlegel V, Schurhammer R, Dowben PA, Doudin B, Routaboul L, Braunstein P. Influence of steric hindrance on the molecular packing and the anchoring of quinonoid zwitterions on gold surfaces. NEW J CHEM 2016. [DOI: 10.1039/c5nj03251b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The N-substituent on quinonoid zwitterions influences the molecules packing and impacts their anchoring on gold surfaces.
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29
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D'Agostino A, Taglietti A, Grisoli P, Dacarro G, Cucca L, Patrini M, Pallavicini P. Seed mediated growth of silver nanoplates on glass: exploiting the bimodal antibacterial effect by near IR photo-thermal action and Ag+ release. RSC Adv 2016. [DOI: 10.1039/c6ra11608f] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Silver nanoplates synthesized with the desired features directly on glass show a bimodal antibacterial action: Ag+ release and NIR laser switchable hyperthermia.
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Affiliation(s)
- A. D'Agostino
- Department of Chemistry
- University of Pavia
- 27100 Pavia
- Italy
| | - A. Taglietti
- Department of Chemistry
- University of Pavia
- 27100 Pavia
- Italy
| | - P. Grisoli
- Department of Drug Sciences
- University of Pavia
- 27100 Pavia
- Italy
| | - G. Dacarro
- Department of Physics
- University of Pavia
- 27100 Pavia
- Italy
| | - L. Cucca
- Department of Chemistry
- University of Pavia
- 27100 Pavia
- Italy
| | - M. Patrini
- Department of Physics
- University of Pavia
- 27100 Pavia
- Italy
| | - P. Pallavicini
- Department of Chemistry
- University of Pavia
- 27100 Pavia
- Italy
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30
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Shahabi S, Döscher S, Bollhorst T, Treccani L, Maas M, Dringen R, Rezwan K. Enhancing Cellular Uptake and Doxorubicin Delivery of Mesoporous Silica Nanoparticles via Surface Functionalization: Effects of Serum. ACS APPLIED MATERIALS & INTERFACES 2015; 7:26880-91. [PMID: 26562468 DOI: 10.1021/acsami.5b09483] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
In this study, we demonstrate how functional groups on the surface of mesoporous silica nanoparticles (MSNPs) can influence the encapsulation and release of the anticancer drug doxorubicin, as well as cancer cell response in the absence or presence of serum proteins. To this end, we synthesized four differently functionalized MSNPs with amine, sulfonate, polyethylene glycol, or polyethylene imine functional surface groups, as well as one type of antibody-conjugated MSNP for specific cellular targeting, and we characterized these MSNPs regarding their physicochemical properties, colloidal stability in physiological media, and uptake and release of doxorubicin in vitro. Then, the MSNPs were investigated for their cytotoxic potential on cancer cells. Cationic MSNPs could not be loaded with doxorubicin and did therefore not show any cytotoxic and antiproliferative potential on osteosarcoma cells, although they were efficiently taken up into the cells in the presence or absence of serum. In contrast, substantial amounts of doxorubicin were loaded into negatively charged and unfunctionalized MSNPs. Especially, sulfonate-functionalized doxorubicin-loaded MSNPs were efficiently taken up into the cells in the presence of serum and showed an accelerated toxic and antiproliferative potential compared to unfunctionalized MSNPs, antibody-conjugated MSNPs, and even free doxorubicin. These findings stress the high importance of the surface charge as well as of the protein corona for designing and applying nanoparticles for targeted drug delivery.
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Affiliation(s)
- Shakiba Shahabi
- Advanced Ceramics, University of Bremen , Am Biologischen Garten 2, 28359 Bremen, Germany
| | - Svea Döscher
- Advanced Ceramics, University of Bremen , Am Biologischen Garten 2, 28359 Bremen, Germany
| | - Tobias Bollhorst
- Advanced Ceramics, University of Bremen , Am Biologischen Garten 2, 28359 Bremen, Germany
| | - Laura Treccani
- Advanced Ceramics, University of Bremen , Am Biologischen Garten 2, 28359 Bremen, Germany
| | - Michael Maas
- Advanced Ceramics, University of Bremen , Am Biologischen Garten 2, 28359 Bremen, Germany
- MAPEX Center for Materials and Processes, University of Bremen , 28359 Bremen, Germany
| | - Ralf Dringen
- Centre for Biomolecular Interactions Bremen and Centre for Environmental Research and Sustainable Technology, Faculty 2 (Biology/Chemistry), University of Bremen , Leobener Strasse, NW2, 28359 Bremen, Germany
| | - Kurosch Rezwan
- Advanced Ceramics, University of Bremen , Am Biologischen Garten 2, 28359 Bremen, Germany
- MAPEX Center for Materials and Processes, University of Bremen , 28359 Bremen, Germany
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31
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Brosel-Oliu S, Abramova N, Bratov A, Vigués N, Mas J, Muñoz FX. Sensitivity and Response Time of Polyethyleneimine Modified Impedimetric Transducer for Bacteria Detection. ELECTROANAL 2015. [DOI: 10.1002/elan.201400575] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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32
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Pallavicini P, Dacarro G, Diaz-Fernandez YA, Taglietti A. Coordination chemistry of surface-grafted ligands for antibacterial materials. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.04.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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33
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Effect of l-Histidine Substitution on Sol–Gel of Transition Metal Coordinated Poly Ethyleneimine: Synthesis and Biochemical Characterization. J Inorg Organomet Polym Mater 2014. [DOI: 10.1007/s10904-014-0067-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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34
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Abolmaali SS, Tamaddon A, Yousefi G, Javidnia K, Dinarvand R. Sequential optimization of methotrexate encapsulation in micellar nano-networks of polyethyleneimine ionomer containing redox-sensitive cross-links. Int J Nanomedicine 2014; 9:2833-48. [PMID: 24944513 PMCID: PMC4057327 DOI: 10.2147/ijn.s61614] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
A functional polycation nanonetwork was developed for delivery of water soluble chemotherapeutic agents. The complexes of polyethyleneimine grafted methoxy polyethylene glycol (PEI-g-mPEG) and Zn(2+) were utilized as the micellar template for cross-linking with dithiodipropionic acid, followed by an acidic pH dialysis to remove the metal ion from the micellar template. The synthesis method was optimized according to pH, the molar ratio of Zn(2+), and the cross-link ratio. The atomic force microscopy showed soft, discrete, and uniform nano-networks. They were sensitive to the simulated reductive environment as determined by Ellman's assay. They showed few positive ζ potential and an average hydrodynamic diameter of 162±10 nm, which decreased to 49±11 nm upon dehydration. The ionic character of the nano-networks allowed the achievement of a higher-loading capacity of methotrexate (MTX), approximately 57% weight per weight, depending on the cross-link and the drug feed ratios. The nano-networks actively loaded with MTX presented some suitable properties, such as the hydrodynamic size of 117±16 nm, polydispersity index of 0.22, and a prolonged swelling-controlled release profile over 24 hours that boosted following reductive activation of the nanonetwork biodegradation. Unlike the PEI ionomer, the nano-networks provided an acceptable cytotoxicity profile. The drug-loaded nano-networks exhibited more specific cytotoxicity against human hepatocellular carcinoma cells if compared to free MTX at concentrations above 1 μM. The enhanced antitumor activity in vitro might be attributed to endocytic entry of MTX-loaded nano-networks that was found in the epifluorescence microscopy experiment for the fluorophore-labeled nano-networks.
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Affiliation(s)
- Samira Sadat Abolmaali
- Department of Pharmaceutics, Shiraz School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Tamaddon
- Department of Pharmaceutics, Shiraz School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Gholamhossein Yousefi
- Department of Pharmaceutics, Shiraz School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Katayoun Javidnia
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Rasoul Dinarvand
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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35
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Taglietti A, Arciola CR, D'Agostino A, Dacarro G, Montanaro L, Campoccia D, Cucca L, Vercellino M, Poggi A, Pallavicini P, Visai L. Antibiofilm activity of a monolayer of silver nanoparticles anchored to an amino-silanized glass surface. Biomaterials 2014; 35:1779-88. [DOI: 10.1016/j.biomaterials.2013.11.047] [Citation(s) in RCA: 141] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 11/17/2013] [Indexed: 12/13/2022]
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36
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Pallavicini P, Donà A, Taglietti A, Minzioni P, Patrini M, Dacarro G, Chirico G, Sironi L, Bloise N, Visai L, Scarabelli L. Self-assembled monolayers of gold nanostars: a convenient tool for near-IR photothermal biofilm eradication. Chem Commun (Camb) 2014; 50:1969-71. [DOI: 10.1039/c3cc48667b] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Self-assembled monolayers of gold nanostars exert efficient photothermal action againstS. aureusbiofilms upon laser irradiation in the nearIR.
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Affiliation(s)
| | - Alice Donà
- inLAB
- Department of Chemistry
- University of Pavia
- 27100 Pavia, Italy
| | - Angelo Taglietti
- inLAB
- Department of Chemistry
- University of Pavia
- 27100 Pavia, Italy
| | - Paolo Minzioni
- Department of Electrical, Computer, and Biomedical Engineering, and CNISM
- University of Pavia
- 27100 Pavia, Italy
| | | | | | - Giuseppe Chirico
- Department of Physics “G. Occhialini”
- University of Milano Bicocca
- 20126 Milano, Italy
| | - Laura Sironi
- Department of Physics “G. Occhialini”
- University of Milano Bicocca
- 20126 Milano, Italy
| | - Nora Bloise
- Department of Molecular Medicine
- Center for Tissue Engineering (C.I.T.)
- INSTM UdR of Pavia
- University of Pavia
- 27100 Pavia, Italy
| | - Livia Visai
- Department of Molecular Medicine
- Center for Tissue Engineering (C.I.T.)
- INSTM UdR of Pavia
- University of Pavia
- 27100 Pavia, Italy
| | - Leonardo Scarabelli
- CIC biomaGUNE
- Center for Cooperative Research in Biomaterials
- 20009 Donostia-San Sebastián, Spain
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Townson JL, Lin YS, Agola JO, Carnes EC, Leong HS, Lewis JD, Haynes CL, Brinker CJ. Re-examining the size/charge paradigm: differing in vivo characteristics of size- and charge-matched mesoporous silica nanoparticles. J Am Chem Soc 2013; 135:16030-3. [PMID: 24107191 DOI: 10.1021/ja4082414] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The combination of nanoparticle (NP) size, charge, and surface chemistry (e.g., extent of modification with polyethylene glycol (PEG)) is accepted as a key determinant of NP/cellular interactions. However, the influence of spatial arrangement and accessibility of the charged molecules on the NP surface vis-à-vis the average surface charge (zeta (ζ) potential) is incompletely understood. Here we demonstrate that two types of mesoporous silica nanoparticles (MSNP) that are matched in terms of primary and hydrodynamic particle size, shape, pore structure, colloidal stability, and ζ potential, but differ in surface chemistry, viz. the spatial arrangement and relative exposure of surface amines, have profoundly different interactions with cells and tissues when evaluated in vitro and in vivo. While both particles are ∼50 nm in diameter, PEGylated, and positively charged (ζ = +40 mV), PEG-PEI (MSNPs modified with exposed polyamines), but not PEG-NMe3(+) (MSNP modified with distributed, obstructed amines) rapidly bind serum proteins, diverse cells types in vitro, and endothelial and white blood cells in vivo (ex ovo chick embryo model). This finding helps elucidate the relative role of surface exposure of charged molecules vs ζ potential in otherwise physicochemically matched MSNP and highlights protein corona neutrality as an important design consideration when synthesizing cationic NPs for biological applications.
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Affiliation(s)
- Jason L Townson
- Center for Micro-Engineered Materials, §Department of Chemical Engineering, the University of New Mexico , Albuquerque, New Mexico 87131, United States
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Pallavicini P, Dacarro G, Grisoli P, Mangano C, Patrini M, Rigoni F, Sangaletti L, Taglietti A. Coordination chemistry for antibacterial materials: a monolayer of a Cu2+ 2,2′-bipyridine complex grafted on a glass surface. Dalton Trans 2013; 42:4552-60. [DOI: 10.1039/c2dt32607h] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Cobalt(III) Schiff base complexes derived from mesostilbenediamine: Synthesis, characterization, crystal structure, electrochemistry and antibacterial studies. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2012.10.030] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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