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Gryczynski J, Mitchell SG, Whitter M, Fuller D, Mitchell MM, Edelman EJ, Schwartz RP. A trial of implementation facilitation to increase timely admission to methadone treatment. J Subst Use Addict Treat 2024; 162:209375. [PMID: 38642889 DOI: 10.1016/j.josat.2024.209375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 02/27/2024] [Accepted: 04/14/2024] [Indexed: 04/22/2024]
Abstract
BACKGROUND During the ongoing opioid epidemic, some Opioid Treatment Programs (OTPs) are unable to admit program applicants in a timely fashion. Interim methadone (IM) treatment (without routine counseling) is an effective approach to overcome this challenge when counseling capacity is inadequate to permit admissions within 14 days of request. It requires both federal and state approval and has been rarely utilized since its incorporation into the federal OTP regulations in 1993. METHODS We evaluated the impact of Implementation Facilitation (IF) on OTPs providing timely admission to methadone treatment (i.e., within 14 days of request), adopting IM, and changing admissions procedures. IF included data collection on admission processes and an external facilitator who engaged OTP leadership, Local Champions through site visits, remote academic detailing, and feedback. Local Champions and State Opioid Treatment Authorities (SOTAs) participated in learning collaboratives. Using a modified stepped wedge design, six OTPs in four US states on the east and west coasts were randomly assigned to one of two clusters that staggered the timing of IF receipt. Study Phases included: Pre-Implementation, IF, and Sustainability. OTPs submitted data on treatment requests and admissions for 28 months (N = 3108 requests for treatment). RESULTS Although none of the OTPs adopted IM, all six developed policies and procedures to enable its use. Some OTPs streamlined admissions processes prior to study launch and during the IF intervention. OTPs reduced admission delays over time, although there was substantial site heterogeneity. The IF Phase for the early cluster coincided with the onset of COVID-19, complicating the study. Rates of timely admission within 14 days of request were 56.2 % (Pre-Implementation), 55.8 % (IF), and 78.8 % (Sustainability). Compared to the Pre-Implementation Phase, the odds of timely admission were not significantly different during the IF Phase but significantly higher during the Sustainability Phase (OR = 2.35 [95 % CI = 1.34, 4.12]; p = 0.003). CONCLUSIONS Committing to study participation and IF activities may have prompted some OTPs to change practices that improved timely admission. Attributing changes to IF should be done with caution considering study limitations. Data collection for the study spanned the COVID-19 pandemic, which complicates interpretation. TRIAL REGISTRATION Clinicaltrials.gov registration # NCT04188977.
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Affiliation(s)
- J Gryczynski
- Friends Research Institute, Inc., Baltimore, MD, United States of America.
| | - S G Mitchell
- Friends Research Institute, Inc., Baltimore, MD, United States of America
| | - M Whitter
- National Association of State Alcohol and Drug Abuse Directors, Inc., Washington, D.C., United States of America
| | - D Fuller
- National Association of State Alcohol and Drug Abuse Directors, Inc., Washington, D.C., United States of America
| | - M M Mitchell
- MMM was with FRI at time of the study, United States of America
| | - E J Edelman
- Yale Schools of Medicine and Public Health, New Haven, CT, United States of America
| | - R P Schwartz
- Friends Research Institute, Inc., Baltimore, MD, United States of America
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2
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Nunes M, Wanzeller Martins G, Sarraguça J, Olival F, Moita P, Mitchell SG, Claro A, Ferreira T. Multi-analytical characterisation of blotting sands on documents from religious orders in Portugal (16th-19th centuries). Spectrochim Acta A Mol Biomol Spectrosc 2023; 303:123204. [PMID: 37556923 DOI: 10.1016/j.saa.2023.123204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 06/14/2023] [Accepted: 07/24/2023] [Indexed: 08/11/2023]
Abstract
Too little is known about areia de escrever, i.e., blotting sands, the intriguing particles sprinkled on freshly written scripts to accelerate the drying time of the ink. Blotting sands constitute a valuable but underestimated historical source. This work investigated the blotting sands used on the account books of the religious houses scattered across continental Portugal and Madeira Island (16th-19th centuries). The sands were mainly composed of different minerals, predominately black sands, but in a few cases, minerals were found mixed with gums, paper cocoons or bone shavings. The combined use of SEM-EDS, µ-Raman and FT-IR techniques uncovered the materials' chemical or mineralogical composition and morphology. This approach, allied with image analysis and statistics complemented with multivariate analysis, allowed us to look for trends between the samples and hypothesise about their provenance. Heavy minerals, such as ilmenite, hematite and almandine, were identified as major components, together with other silicates (e.g. quartz). Samples were dominated by medium-sized grains with shape features indicating texturally mature sediments resulting from a medium-to-long sedimentary transport. Due to shorter geological transport distances, Madeira Island was the exception, with more angular grains. This work allowed us to uncover blotting sands, value them as historical sources, and establish a roadmap for their use in Portugal, aiming to pave the way towards a more global context in Europe.
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Affiliation(s)
- M Nunes
- HERCULES Laboratory, University of Évora, Portugal
| | | | | | - F Olival
- CIDEHUS, University of Évora, Portugal; History Department, Social Sciences School, University of Évora, Portugal
| | - P Moita
- HERCULES Laboratory, University of Évora, Portugal; Geosciences Department, Sciences and Technology School, University of Évora, Portugal
| | - Scott G Mitchell
- Instituto de Nanociencia y Materiales de Aragón (INMA-CSIC/UNIZAR), Consejo Superior de Investigaciones Científicas-Universidad de Zaragoza, Spain
| | - A Claro
- CHAM- Centre for the Humanities, College of Social and Human Sciences, NOVA University of Lisbon, Portugal
| | - T Ferreira
- HERCULES Laboratory, University of Évora, Portugal; Chemistry and Biochemistry Department, Sciences and Technology School, University of Évora, Portugal.
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3
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Ferrando R, Mitchell SG, Atrián-Blasco E, Cerrada E. Antibacterial properties of phosphine gold(I) complexes with 5-fluorouracil. Dalton Trans 2023. [PMID: 37448318 DOI: 10.1039/d3dt01159c] [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: 07/15/2023]
Abstract
New gold(I) complexes with coordination to 5-fluorouracil (5-FU), an anticancer drug with antibacterial properties, have been synthesised and characterised, and are the first reported examples of 5-FU-Au compounds. These new complexes show high solution stability, even in the presence of a cysteine derivative, and so were evaluated as antibacterial compounds against model Gram-positive and Gram-negative bacteria. All the complexes show excellent antibacterial activity against Gram-positive B. subtilis, most of them improving the activity of 5-FU alone. Furthermore, these new complexes are also active against Gram-negative E. coli, where [Au(5-FU)(PTA)], the complex with the smallest phosphane, is the most bactericidal, 32 times more active than 5-FU on its own.
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Affiliation(s)
- Ricardo Ferrando
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain.
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
| | - Scott G Mitchell
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Elena Atrián-Blasco
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
| | - Elena Cerrada
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain.
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4
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Eyssautier-Chuine S, Franco-Castillo I, Misra A, Hubert J, Vaillant-Gaveau N, Streb C, Mitchell SG. Evaluating the durability and performance of polyoxometalate-ionic liquid coatings on calcareous stones: Preventing biocolonisation in outdoor environments. Sci Total Environ 2023; 884:163739. [PMID: 37142021 DOI: 10.1016/j.scitotenv.2023.163739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 04/16/2023] [Accepted: 04/21/2023] [Indexed: 05/06/2023]
Abstract
Rock-based materials exposed to outdoor environments are naturally colonised by an array of microorganisms, which can cause dissolution and fracturing of the natural stone. Biocolonisation of monuments and architectures of important cultural heritage therefore represents an expensive and recurring problem for local authorities and private owners alike. In this area, preventive strategies to mitigate biocolonisation are generally preferred to curative approaches, such as mechanical cleaning by brush or high-pressure cleaning, to remove pre-existing patina. The aim of this work was to study the interaction between biocidal polyoxometalate-ionic liquid (POM-IL) coatings and calcareous stones and evaluate the capacity of these coatings to prevent biocolonisation through a series of accelerated ageing studies in climate chambers, carried out in parallel with a two-year period of outdoor exposure in north-eastern France. Our experiments show that POM-IL coatings did not affect water vapour transfer nor significantly alter the total porosity of the calcareous stones. Simulated weathering studies replicating harsh (hot and wet) climatic weather conditions demonstrated that the colour variation of POM-IL-coated stones did not vary significantly with respect to the natural uncoated stones. Accelerated biocolonisation studies performed on the weathered POM-IL-coated stones proved that the coatings were still capable of preventing colonisation by an algal biofilm. However, a combination of colour measurements, chlorophyll fluorescence data, and scanning electron microscopy imaging of stones aged outdoors in northern France for two years showed that coated and uncoated stone samples showed signs of colonisation by fungal mycelium and phototrophs. Altogether, our results demonstrate that POM-ILs are suitable as preventative biocidal coatings for calcareous stones, but the correct concentrations must be chosen to achieve a balance between porosity of the stone, the resulting colour variation and the desired duration of the biocidal effect over longer periods of time, particularly in outdoor environments.
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Affiliation(s)
- Stéphanie Eyssautier-Chuine
- Groupe d'Étude sur les Géomatériaux et les Environnements Naturels Anthropiques et Archéologiques 3795 (GEGENAA) - SFR Condorcet FR CNRS 3417 - 2, Esplanade Roland Garros, Université de Reims Champagne-Ardenne, 51100 cedex Reims, France.
| | - Isabel Franco-Castillo
- Instituto de Nanociencia y Materiales de Aragón (INMA-CSIC/UNIZAR), Consejo Superior de Investigaciones Científicas-Universidad de Zaragoza, c/ Pedro Cerbuna 12, 50009 Zaragoza, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Archismita Misra
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Julien Hubert
- Groupe d'Étude sur les Géomatériaux et les Environnements Naturels Anthropiques et Archéologiques 3795 (GEGENAA) - SFR Condorcet FR CNRS 3417 - 2, Esplanade Roland Garros, Université de Reims Champagne-Ardenne, 51100 cedex Reims, France
| | - Nathalie Vaillant-Gaveau
- Unité de Recherche EA 4707 Résistance Induite et Bioprotection des Plantes (RIBP), SFR Condorcet FR CNRS 3417, UFR Sciences Exactes et Naturelles, Université de Reims Champagne-Ardenne, Reims, France
| | - Carsten Streb
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany; Department of Chemistry, Johannes Gutenberg University Mainy, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Scott G Mitchell
- Instituto de Nanociencia y Materiales de Aragón (INMA-CSIC/UNIZAR), Consejo Superior de Investigaciones Científicas-Universidad de Zaragoza, c/ Pedro Cerbuna 12, 50009 Zaragoza, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain.
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5
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Soria-Carrera H, Atrián-Blasco E, Martín-Rapún R, Mitchell SG. Polyoxometalate-peptide hybrid materials: from structure-property relationships to applications. Chem Sci 2022; 14:10-28. [PMID: 36605748 PMCID: PMC9769095 DOI: 10.1039/d2sc05105b] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/16/2022] [Indexed: 11/17/2022] Open
Abstract
Organo-functionalisation of polyoxometalates (POMs) represents an effective approach to obtain diverse arrays of functional structures and materials, where the introduction of organic moieties into the POM molecules can dramatically change their surface chemistry, charge, polarity, and redox properties. The synergistic combination of POMs and peptides, which perform a myriad of essential roles within cellular biochemistry, including protection and transport in living organisms, leads to functional hybrid materials with unique properties. In this Perspective article, we present the principal synthetic routes to prepare and characterise POM-peptide hybrids, together with a comprehensive description of how their properties - such as redox chemistry, stereochemistry and supramolecular self-assembly - give rise to materials with relevant catalytic, adhesive, and biomedical applications. By presenting the state-of-the-art of the POM-peptide field, we show specifically how emerging chemical approaches can be harnessed to develop tailored POM-peptide materials with synergistic properties for applications in a variety of disciplines.
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Affiliation(s)
- Héctor Soria-Carrera
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III 28029 Madrid Spain
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Elena Atrián-Blasco
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III 28029 Madrid Spain
| | - Rafael Martín-Rapún
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III 28029 Madrid Spain
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Scott G Mitchell
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III 28029 Madrid Spain
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6
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Gracia-Vallés N, Ruiz-Torrubia F, Mitchell SG, Nerín C, Silva F. Developing ethyl lauroyl arginate antimicrobial films to combat Listeria monocytogenes in cured ham. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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7
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Aureliano M, Mitchell SG, Yin P. Editorial: Emerging polyoxometalates with biological, biomedical, and health applications. Front Chem 2022; 10:977317. [PMID: 36017169 PMCID: PMC9397140 DOI: 10.3389/fchem.2022.977317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 06/28/2022] [Indexed: 11/24/2022] Open
Affiliation(s)
- Manuel Aureliano
- Faculdade de Ciências e Tecnologia, Campus de Gambelas, Universidade do Algarve, Faro, Portugal
- Centro de Ciências do Mar (CCMar), Universidade do Algarve, Faro, Portugal
- *Correspondence: Manuel Aureliano, ; Scott G. Mitchell, ; Panchao Yin,
| | - Scott G. Mitchell
- Instituto de Nanociencia y Materiales de Aragón (INMA), Consejo Superior de Investigaciones Científicas-Universidad de Zaragoza, Zaragoza, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, Madrid, Spain
- *Correspondence: Manuel Aureliano, ; Scott G. Mitchell, ; Panchao Yin,
| | - Panchao Yin
- South China University of Technology, Guangzhou, China
- *Correspondence: Manuel Aureliano, ; Scott G. Mitchell, ; Panchao Yin,
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8
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Enderle AG, Franco-Castillo I, Atrián-Blasco E, Martín-Rapún R, Lizarraga L, Culzoni MJ, Bollini M, de la Fuente JM, Silva F, Streb C, Mitchell SG. Hybrid Antimicrobial Films Containing a Polyoxometalate-Ionic Liquid. ACS Appl Polym Mater 2022; 4:4144-4153. [PMID: 35720671 PMCID: PMC9194901 DOI: 10.1021/acsapm.2c00110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 04/02/2022] [Indexed: 05/30/2023]
Abstract
The increasing resistance of pathogenic microorganisms against common treatments requires innovative concepts to prevent infection and avoid long-term microbe viability on commonly used surfaces. Here, we report the preparation of a hybrid antimicrobial material based on the combination of microbiocidal polyoxometalate-ionic liquids (POM-ILs) and a biocompatible polymeric support, which enables the development of surface coatings that prevent microbial adhesion. The composite material is based on an antibacterial and antifungal room-temperature POM-IL composed of guanidinium cations (N,N,N',N'-tetramethyl-N″, N″-dioctylguanidinum) combined with lacunary Keggin-type polyoxotungstate anions, [α-SiW11O39]8-. Integration of the antimicrobial POM-IL into the biocompatible, flexible, and stable polymer poly(methyl methacrylate) (PMMA) results in processable films, which are suitable as surface coatings or packaging materials to limit the proliferation and spread of pathogenic microorganisms (e.g., on public transport and hospital surfaces, or in ready-to-eat-food packaging).
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Affiliation(s)
- Ana G. Enderle
- Institute
of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
- Centro
de Investigaciones en Bionanociencias (CIBION), CONICET, Godoy Cruz,
2390, C1425FQD Ciudad
de Buenos Aires, Argentina
- Laboratorio
de Desarrollo Analítico y Quimiometría (LADAQ), Universidad
Nacional del Litoral—CONICET, Ciudad
Universitaria, Paraje
El Pozo, CC242, S3000 Santa Fe, Argentina
| | - Isabel Franco-Castillo
- Instituto
de Nanociencia y Materiales de Aragón (INMA-CSIC), Consejo Superior de Investigaciones Científicas-Universidad
de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Elena Atrián-Blasco
- Instituto
de Nanociencia y Materiales de Aragón (INMA-CSIC), Consejo Superior de Investigaciones Científicas-Universidad
de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Rafael Martín-Rapún
- Instituto
de Nanociencia y Materiales de Aragón (INMA-CSIC), Consejo Superior de Investigaciones Científicas-Universidad
de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Leonardo Lizarraga
- Centro
de Investigaciones en Bionanociencias (CIBION), CONICET, Godoy Cruz,
2390, C1425FQD Ciudad
de Buenos Aires, Argentina
| | - María J. Culzoni
- Laboratorio
de Desarrollo Analítico y Quimiometría (LADAQ), Universidad
Nacional del Litoral—CONICET, Ciudad
Universitaria, Paraje
El Pozo, CC242, S3000 Santa Fe, Argentina
| | - Mariela Bollini
- Centro
de Investigaciones en Bionanociencias (CIBION), CONICET, Godoy Cruz,
2390, C1425FQD Ciudad
de Buenos Aires, Argentina
| | - Jesús M. de la Fuente
- Instituto
de Nanociencia y Materiales de Aragón (INMA-CSIC), Consejo Superior de Investigaciones Científicas-Universidad
de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Filomena Silva
- ARAID—Agencia
Aragonesa para la Investigación y el Desarrollo, Av. Ranillas, 1D, 2B, 50018 Zaragoza, Spain
- Facultad
de Veterinaria, Universidad de Zaragoza, Calle Miguel Servet 117, 50013 Zaragoza, Spain
| | - Carsten Streb
- Institute
of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Scott G. Mitchell
- Instituto
de Nanociencia y Materiales de Aragón (INMA-CSIC), Consejo Superior de Investigaciones Científicas-Universidad
de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
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Soria-Carrera H, Atrián-Blasco E, de la Fuente JM, Mitchell SG, Martín-Rapún R. Polyoxometalate-polypeptide nanoassemblies as peroxidase surrogates with antibiofilm properties. Nanoscale 2022; 14:5999-6006. [PMID: 35348148 DOI: 10.1039/d1nr08223j] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Developing artificial metalloenzymes that possess a superior performance to their natural counterparts is an attractive concept. Polyoxometalates (POMs) are a class of anionic molecular metal-oxides with excellent redox properties and bioactivity. We have recently introduced "POMlymers" - covalently conjugated POM-peptide hybrid materials - where the polypeptide chain is obtained through a ring-opening polymerisation (ROP) of α-amino acid N-carboxyanhydrides (NCA) on an inorganic POM scaffold. Attracted by the idea of preparing artificial metalloenzymes, here we report the supramolecular self-assembly of POMlymer hybrids into nanoparticles where an optimal environment for catalysis is created. Our results demonstrate that the self-assembly of covalent POMlymers, enhances the peroxidase-like activity of the parent POM anion whereas, in contrast, the catalytic activity for nanoparticles obtained by ionic self-assembly of the same peptide and POM components practically disappears. Furthermore, POMlymer nanoparticles also present antimicrobial and antibiofilm activity against the skin bacterium Staphylococcus epidermidis; whereas, ionic POM-peptide hybrids significantly increase biofilm production and endogenous production of reactive oxygen species. In summary, we present the self-assembly of POMlymer hybrids into nanoparticles and a combination of peroxidase activity and microbiology assays that show that the POM-peptide covalent bond is essential for the stability of the self-assembled nanoparticles and therefore for their catalytic and biological activity.
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Affiliation(s)
- Héctor Soria-Carrera
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain.
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Elena Atrián-Blasco
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain.
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Jesús M de la Fuente
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain.
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Scott G Mitchell
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain.
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Rafael Martín-Rapún
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain.
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain
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Wales DJ, Miralles-Comins S, Franco-Castillo I, Cameron JM, Cao Q, Karjalainen E, Alves Fernandes J, Newton GN, Mitchell SG, Sans V. Decoupling manufacturing from application in additive manufactured antimicrobial materials. Biomater Sci 2021; 9:5397-5406. [PMID: 33988192 DOI: 10.1039/d1bm00430a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
3D printable materials based on polymeric ionic liquids (PILs) capable of controlling the synthesis and stabilisation of silver nanoparticles (AgNPs) and their synergistic antimicrobial activity are reported. The interaction of the ionic liquid moieties with the silver precursor enabled the controlled in situ formation and stabilisation of AgNPs via extended UV photoreduction after the printing process, thus demonstrating an effective decoupling of the device manufacturing from the on-demand generation of nanomaterials, which avoids the potential aging of the nanomaterials through oxidation. The printed devices showed a multi-functional and tuneable microbicidal activity against Gram positive (B. subtilis) and Gram negative (E. coli) bacteria and against the mould Aspergillus niger. While the polymeric material alone was found to be bacteriostatic, the AgNPs conferred bactericidal properties to the material. Combining PIL-based materials with functionalities, such as in situ and photoactivated on-demand fabricated antimicrobial AgNPs, provides a synergistic functionality that could be harnessed for a variety of applications, especially when coupled to the freedom of design inherent to additive manufacturing techniques.
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Affiliation(s)
- Dominic J Wales
- Faculty of Engineering, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Sara Miralles-Comins
- Institute of Advanced Materials (INAM), Universitat Jaume I, 12071, Castellon, Spain.
| | - Isabel Franco-Castillo
- Instituto de Nanociencia y Materiales de Aragón (INMA-CSIC), CSIC-Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain and CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain.
| | - Jamie M Cameron
- GSK Carbon Neutral Laboratory, University of Nottingham, Jubilee Campus, Nottingham, NG8 2GA, UK
| | - Qun Cao
- Faculty of Engineering, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Erno Karjalainen
- Faculty of Engineering, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Jesum Alves Fernandes
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Graham N Newton
- GSK Carbon Neutral Laboratory, University of Nottingham, Jubilee Campus, Nottingham, NG8 2GA, UK
| | - Scott G Mitchell
- Instituto de Nanociencia y Materiales de Aragón (INMA-CSIC), CSIC-Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain and CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain.
| | - Victor Sans
- Institute of Advanced Materials (INAM), Universitat Jaume I, 12071, Castellon, Spain.
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11
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Mitchell MM, Kelly SM, O'Grady KE, Jaffe JH, Mitchell SG, Schwartz RP. HIV-Risk Behavior Among Adults with Opioid Use Disorder During 12 Months Following Pre-trial Detention: Results from a Randomized Trial of Methadone Treatment. AIDS Behav 2021; 25:1247-1256. [PMID: 33196937 PMCID: PMC7979478 DOI: 10.1007/s10461-020-03090-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2020] [Indexed: 11/26/2022]
Abstract
This was a three group randomized clinical trial of interim methadone and patient navigation involving 225 pre-trial detainees with opioid use disorder in Baltimore. The HIV Risk Assessment Battery (RAB) was administered at baseline (in jail), and at 6 and 12 months post-release. Generalized linear mixed model analyses indicated the condition × time interaction effect failed to reach significance (ps > .05) for both the drug risk and sex risk subscale scores. Therefore, findings suggest that there were no intervention effects on drug or sex risk behaviors. However, increased use of cocaine at baseline was associated with increases in drug- (b = .04, SE = .02) and sex-risk (b = .01, SE = .003) behaviors. These results suggest that interventions targeting cocaine use among pre-trial detainees may serve as a means of reducing HIV risk associated with drug- and sex-risk behaviors.Clinical Trials Registration: Clinicaltrials.gov NCT02334215.
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Affiliation(s)
- M M Mitchell
- Friends Research Institute, 1040 Park Avenue, Suite 103, Baltimore, MD, 21201, USA.
| | - S M Kelly
- Friends Research Institute, 1040 Park Avenue, Suite 103, Baltimore, MD, 21201, USA
| | - K E O'Grady
- Department of Psychology, University of Maryland, College Park, MD, USA
| | - J H Jaffe
- Friends Research Institute, 1040 Park Avenue, Suite 103, Baltimore, MD, 21201, USA
| | - S G Mitchell
- Friends Research Institute, 1040 Park Avenue, Suite 103, Baltimore, MD, 21201, USA
| | - R P Schwartz
- Friends Research Institute, 1040 Park Avenue, Suite 103, Baltimore, MD, 21201, USA
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12
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Soria‐Carrera H, Franco‐Castillo I, Romero P, Martín S, Fuente JM, Mitchell SG, Martín‐Rapún R. Rücktitelbild: On‐POM Ring‐Opening Polymerisation of
N
‐Carboxyanhydrides (Angew. Chem. 7/2021). Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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)
- Héctor Soria‐Carrera
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
| | - Isabel Franco‐Castillo
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
| | - Pilar Romero
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Santiago Martín
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- Departamento de Química Física Facultad de Ciencias Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Jesús M. Fuente
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
| | - Scott G. Mitchell
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
| | - Rafael Martín‐Rapún
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
- Departamento de Química Orgánica Facultad de Ciencias Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
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13
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Soria‐Carrera H, Franco‐Castillo I, Romero P, Martín S, Fuente JM, Mitchell SG, Martín‐Rapún R. Back Cover: On‐POM Ring‐Opening Polymerisation of
N
‐Carboxyanhydrides (Angew. Chem. Int. Ed. 7/2021). Angew Chem Int Ed Engl 2021. [DOI: 10.1002/anie.202016887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Héctor Soria‐Carrera
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
| | - Isabel Franco‐Castillo
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
| | - Pilar Romero
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Santiago Martín
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- Departamento de Química Física Facultad de Ciencias Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Jesús M. Fuente
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
| | - Scott G. Mitchell
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
| | - Rafael Martín‐Rapún
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
- Departamento de Química Orgánica Facultad de Ciencias Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
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Soria‐Carrera H, Franco‐Castillo I, Romero P, Martín S, Fuente JM, Mitchell SG, Martín‐Rapún R. On‐POM Ring‐Opening Polymerisation of
N
‐Carboxyanhydrides. Angew Chem Int Ed Engl 2021; 60:3449-3453. [DOI: 10.1002/anie.202013563] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Indexed: 11/07/2022]
Affiliation(s)
- Héctor Soria‐Carrera
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
| | - Isabel Franco‐Castillo
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
| | - Pilar Romero
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Santiago Martín
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- Departamento de Química Física Facultad de Ciencias Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Jesús M. Fuente
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
| | - Scott G. Mitchell
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
| | - Rafael Martín‐Rapún
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
- Departamento de Química Orgánica Facultad de Ciencias Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
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15
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Soria‐Carrera H, Franco‐Castillo I, Romero P, Martín S, Fuente JM, Mitchell SG, Martín‐Rapún R. On‐POM Ring‐Opening Polymerisation of
N
‐Carboxyanhydrides. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013563] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Héctor Soria‐Carrera
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
| | - Isabel Franco‐Castillo
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
| | - Pilar Romero
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Santiago Martín
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- Departamento de Química Física Facultad de Ciencias Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Jesús M. Fuente
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
| | - Scott G. Mitchell
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
| | - Rafael Martín‐Rapún
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina Instituto de Salud Carlos III 28029 Madrid Spain
- Departamento de Química Orgánica Facultad de Ciencias Universidad de Zaragoza c/ Pedro Cerbuna 12 50009 Zaragoza Spain
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16
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Rajkowska K, Koziróg A, Otlewska A, Piotrowska M, Atrián-Blasco E, Franco-Castillo I, Mitchell SG. Antifungal Activity of Polyoxometalate-Ionic Liquids on Historical Brick. Molecules 2020; 25:molecules25235663. [PMID: 33271794 PMCID: PMC7729500 DOI: 10.3390/molecules25235663] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 11/06/2020] [Revised: 11/20/2020] [Accepted: 11/26/2020] [Indexed: 01/06/2023] Open
Abstract
Moulds inhabiting mineral-based materials may cause their biodeterioration, contributing to inestimable losses, especially in the case of cultural heritage objects and architectures. Fungi in mouldy buildings may also pose a threat to human health and constitute the main etiological factor in building related illnesses. In this context, research into novel compounds with antifungal activity is of high importance. The aim of this study was to evaluate the antifungal activity of polyoxometalate-ionic liquids (POM-ILs) and their use in the eradication of moulds from historical brick. In the disc diffusion assay, all the tested POM-ILs inhibited growth of a mixed culture of moulds including Engyodontium album, Cladosporium cladosporioides, Alternaria alternata and Aspergillus fumigatus. These were isolated from the surfaces of historical brick barracks at the Auschwitz II-Birkenau State Museum in Oświęcim, Poland. POM-IL coatings on historical brick samples, under model conditions, showed that two compounds demonstrated very high antifungal activity, completely limiting mould growth and development. The antifungal activity of the POM-ILs appeared to stem from their toxic effects on conidia, as evidenced by environmental scanning transmission electron microscopy observations. The results herein indicated that POM-ILs are promising disinfectant materials for use not only on historical objects, but probably also on other mineral-based materials.
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Affiliation(s)
- Katarzyna Rajkowska
- Institute of Fermentation Technology and Microbiology, Lodz University of Technology, Wólczańska 171/173, 90-924 Lodz, Poland; (A.K.); (A.O.); (M.P.)
- Correspondence: (K.R.); (S.G.M.)
| | - Anna Koziróg
- Institute of Fermentation Technology and Microbiology, Lodz University of Technology, Wólczańska 171/173, 90-924 Lodz, Poland; (A.K.); (A.O.); (M.P.)
| | - Anna Otlewska
- Institute of Fermentation Technology and Microbiology, Lodz University of Technology, Wólczańska 171/173, 90-924 Lodz, Poland; (A.K.); (A.O.); (M.P.)
| | - Małgorzata Piotrowska
- Institute of Fermentation Technology and Microbiology, Lodz University of Technology, Wólczańska 171/173, 90-924 Lodz, Poland; (A.K.); (A.O.); (M.P.)
| | - Elena Atrián-Blasco
- Instituto de Nanociencia y Materiales de Aragón (INMA), Consejo Superior de Investigaciones Científicas-Universidad de Zaragoza, 50009 Zaragoza, Spain; (E.A.-B.); (I.F.-C.)
- Center for Biomedical Research Network-Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Isabel Franco-Castillo
- Instituto de Nanociencia y Materiales de Aragón (INMA), Consejo Superior de Investigaciones Científicas-Universidad de Zaragoza, 50009 Zaragoza, Spain; (E.A.-B.); (I.F.-C.)
- Center for Biomedical Research Network-Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Scott G. Mitchell
- Instituto de Nanociencia y Materiales de Aragón (INMA), Consejo Superior de Investigaciones Científicas-Universidad de Zaragoza, 50009 Zaragoza, Spain; (E.A.-B.); (I.F.-C.)
- Center for Biomedical Research Network-Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: (K.R.); (S.G.M.)
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17
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Franco Castillo I, García Guillén E, M de la Fuente J, Silva F, Mitchell SG. Preventing fungal growth on heritage paper with antifungal and cellulase inhibiting magnesium oxide nanoparticles. J Mater Chem B 2020; 7:6412-6419. [PMID: 31642855 DOI: 10.1039/c9tb00992b] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Microorganisms such as bacteria, fungi, algae and moulds are highly proficient at colonizing artistic and architectural heritage. The irreparable damage they cause to unique artefacts results in immeasurable cultural and societal losses to our shared cultural heritage, which represent an important social and economic resource for Europe. With the overall aim of preventing fungal deterioration of paper artefacts, we report the use of magnesium oxide nanoparticles (MgO NPs) of average diameter 12 nm as potent antifungal agents against fungi commonly found colonising paper heritage: A. niger, C. cladosporioides and T. reesei. Dispersions of MgO NPs on original 18th century paper samples from the Archives of the Spanish Royal Botanic Garden were effective at preventing fungal colonisation without altering the appearance of the paper artefacts. Importantly, MgO NPs also inhibit cellulase activity in the filamentous fungi T. resei and A. niger, two of the principle biodeteriogens of cellulosic materials. In addition, our report provides three simple new procedures for studying the fungal colonisation prevention properties of nanomaterials on paper samples. Overall this opens the door to the use of colourless, low-cost, and scalable nanomaterials for preventing biodeterioration in cellulose-based artefacts.
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Affiliation(s)
- Isabel Franco Castillo
- Instituto de Ciencia de Materiales de Aragón (ICMA), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain. and CIBER-BBN, Instituto de Salud Carlos III, Madrid, Spain
| | - Esther García Guillén
- Real Jardín Botánico, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Jesús M de la Fuente
- Instituto de Ciencia de Materiales de Aragón (ICMA), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain. and CIBER-BBN, Instituto de Salud Carlos III, Madrid, Spain
| | - Filomena Silva
- ARAID - Agencia Aragonesa para la Investigación y el Desarrollo, Av. Ranillas, 1D, 2B, 50018 Zaragoza, Spain and Universidad de Zaragoza, Facultad de Veterinaria, Calle Miguel Servet 117, 50013 Zaragoza, Spain
| | - Scott G Mitchell
- Instituto de Ciencia de Materiales de Aragón (ICMA), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain. and CIBER-BBN, Instituto de Salud Carlos III, Madrid, Spain
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18
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Bastami TR, Ghaedi A, Mitchell SG, Javadian-Saraf A, Karimi M. Correction: Sonochemical synthesis of polyoxometalate-stabilized gold nanoparticles for point-of-care determination of acetaminophen levels: preclinical study in an animal model. RSC Adv 2020; 10:18138. [PMID: 35517201 PMCID: PMC9053996 DOI: 10.1039/d0ra90056g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 05/01/2020] [Indexed: 11/21/2022] Open
Abstract
Correction for ‘Sonochemical synthesis of polyoxometalate-stabilized gold nanoparticles for point-of-care determination of acetaminophen levels: preclinical study in an animal model’ by Tahereh Rohani Bastami et al., RSC Adv., 2020, 10, 16805–16816, DOI: 10.1039/D0RA00931H.
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Affiliation(s)
- Tahereh Rohani Bastami
- Department of Chemical Engineering, Quchan University of Technology Quchan 94771-67335 Iran .,Research and Technology Center of Biomolecules, Faculty of Science, Ferdowsi University of Mashhad Mashhad 9177948974 Iran
| | - Abolphazl Ghaedi
- Department of Chemical Engineering, Quchan University of Technology Quchan 94771-67335 Iran
| | - Scott G Mitchell
- Instituto de Ciencia de Materiales de Aragón (ICMA), Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Zaragoza, CIBER-BBN C/Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Aida Javadian-Saraf
- School of Engineering, University of British Columbia Kelowna BC V1V 1V7 Canada
| | - Mohammad Karimi
- Department of Emergency Medicine, Faculty of Medicine, Ahvaz Jundishapur University Ahvaz Iran
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19
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Ramírez-Jiménez R, Artiga Á, Mitchell SG, Martín-Rapún R, de la Fuente JM. Surfactant-Free Synthesis and Scalable Purification of Triangular Gold Nanoprisms with Low Non-Specific Cellular Uptake. Nanomaterials (Basel) 2020; 10:nano10030539. [PMID: 32192152 PMCID: PMC7153367 DOI: 10.3390/nano10030539] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/10/2020] [Accepted: 03/11/2020] [Indexed: 12/14/2022]
Abstract
Gold nanoprisms possess remarkable optical properties that make them useful for medical biotechnology applications such as diagnosis and photothermal therapy. However, shape-selective synthesis of gold nanoprisms is not trivial and typically requires either toxic surfactants or time-consuming purification protocols, which can limit their applicability. Here, we show how triangular gold nanoprisms of different sizes can be purified by precipitation using the non-toxic glutathione ligand, thereby removing the need for toxic surfactants and bottleneck purification techniques. The protocol is amenable for direct scaling up as no instrumentation is required in the critical purification step. The new purification method provides a two-fold increased yield in gold nanoprisms compared to electrophoretic filtration, while providing nanoprisms of similar localized surface plasmon resonance wavelength. Crucially, the gold nanoprisms isolated using this methodology show fewer non-specific interactions with cells and lower cellular internalization, which paves the way for a higher selectivity in therapeutic applications.
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Affiliation(s)
- Rafael Ramírez-Jiménez
- Instituto de Ciencia de Materiales de Aragón (CSIC-Universidad de Zaragoza), c/ Pedro Cerbuna s/n, 50009 Zaragoza, Spain; (R.R.-J.); (S.G.M.)
- Centro de Investigación Biomédica en Red in Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain
| | - Álvaro Artiga
- Instituto de Ciencia de Materiales de Aragón (CSIC-Universidad de Zaragoza), c/ Pedro Cerbuna s/n, 50009 Zaragoza, Spain; (R.R.-J.); (S.G.M.)
- Centro de Investigación Biomédica en Red in Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain
| | - Scott G. Mitchell
- Instituto de Ciencia de Materiales de Aragón (CSIC-Universidad de Zaragoza), c/ Pedro Cerbuna s/n, 50009 Zaragoza, Spain; (R.R.-J.); (S.G.M.)
- Centro de Investigación Biomédica en Red in Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain
| | - Rafael Martín-Rapún
- Instituto de Ciencia de Materiales de Aragón (CSIC-Universidad de Zaragoza), c/ Pedro Cerbuna s/n, 50009 Zaragoza, Spain; (R.R.-J.); (S.G.M.)
- Centro de Investigación Biomédica en Red in Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain
- Instituto de Nanociencia de Aragón, Depto. Química Orgánica (Universidad de Zaragoza), c/ Mariano Esquillor s/n, 50018 Zaragoza, Spain
- Correspondence: (R.M.-R.); (J.M.d.l.F.)
| | - Jesús M. de la Fuente
- Instituto de Ciencia de Materiales de Aragón (CSIC-Universidad de Zaragoza), c/ Pedro Cerbuna s/n, 50009 Zaragoza, Spain; (R.R.-J.); (S.G.M.)
- Centro de Investigación Biomédica en Red in Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain
- Correspondence: (R.M.-R.); (J.M.d.l.F.)
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20
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Bastami TR, Ghaedi A, Mitchell SG, Javadian-Saraf A, Karimi M. Sonochemical synthesis of polyoxometalate-stabilized gold nanoparticles for point-of-care determination of acetaminophen levels: preclinical study in an animal model. RSC Adv 2020; 10:16805-16816. [PMID: 35498867 PMCID: PMC9053096 DOI: 10.1039/d0ra00931h] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 01/31/2020] [Revised: 05/12/2020] [Accepted: 04/13/2020] [Indexed: 12/30/2022] Open
Abstract
The aim of this study is the accurate and rapid detection of acetaminophen (AP) for point-of-care (POC) clinical diagnosis. Acetaminophen overdose causes acute liver failure and currently there is a lack of rapid quantitative detection methods for this drug in the emergency room. Here, low-frequency sonication (20 kHz) in the presence of phosphomolybdic acid (PMo12) was used to reduce Au3+ to Au0 and stabilize the resulting spherical Au0 nanoparticles (herein AuNPs). These AuNPs@PMo12 were used as nano-probes for the selective detection of acetaminophen in the presence of other commercial drugs. The optical sensing method we describe is based on the aggregation of AuNPs@PMo12 in the presence of acetaminophen, which produces a red-shift in the absorption spectrum of the AuNPs@PMo12, which is characterised by a color change from red to purple that is visible to the naked eye. Furthermore, the quantitative determination of acetaminophen concentrations can be carried out using the eyedropper function in Microsoft's PowerPoint or open access ImageJ software, using RGB (red, green, and blue) values. To prove the feasibility of this novel nanosensor, the concentration of acetaminophen was measured in over-the-counter pharmaceutical tablets and in serum samples taken from mice. This simple sensing approach offers high stability, selectivity, rapid detection time, and cost saving compared to other detection methods, which therefore opens the way for the development of quantitative POC acetaminophen detection using polyoxometalate-stabilized metal nanoparticles. The aim of this study is the accurate detection of acetaminophen (AP) for point-of-care (POC) clinical diagnosis. The concentration of acetaminophen was measured in over-the-counter pharmaceutical tablets and in serum samples taken from mice.![]()
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Affiliation(s)
- Tahereh Rohani Bastami
- Department of Chemical Engineering
- Quchan University of Technology
- Quchan 94771-67335
- Iran
- Research and Technology Center of Biomolecules
| | - Abolphazl Ghaedi
- Department of Chemical Engineering
- Quchan University of Technology
- Quchan 94771-67335
- Iran
| | - Scott G. Mitchell
- Instituto de Ciencia de Materiales de Aragón (ICMA)
- Consejo Superior de Investigaciones Científicas (CSIC)-Universidad de Zaragoza and CIBER-BBN
- 50009 Zaragoza
- Spain
| | | | - Mohammad Karimi
- Department of Emergency Medicine
- Faculty of Medicine
- Ahvaz Jundishapur University
- Ahvaz
- Iran
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21
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Misra A, Zambrzycki C, Kloker G, Kotyrba A, Anjass MH, Franco Castillo I, Mitchell SG, Güttel R, Streb C. Water Purification and Microplastics Removal Using Magnetic Polyoxometalate-Supported Ionic Liquid Phases (magPOM-SILPs). Angew Chem Int Ed Engl 2019; 59:1601-1605. [PMID: 31639241 PMCID: PMC7004052 DOI: 10.1002/anie.201912111] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [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: 09/22/2019] [Revised: 10/21/2019] [Indexed: 01/23/2023]
Abstract
Filtration is an established water‐purification technology. However, due to low flow rates, the filtration of large volumes of water is often not practical. Herein, we report an alternative purification approach in which a magnetic nanoparticle composite is used to remove organic, inorganic, microbial, and microplastics pollutants from water. The composite is based on a polyoxometalate ionic liquid (POM‐IL) adsorbed onto magnetic microporous core–shell Fe2O3/SiO2 particles, giving a magnetic POM‐supported ionic liquid phase (magPOM‐SILP). Efficient, often quantitative removal of several typical surface water pollutants is reported together with facile removal of the particles using a permanent magnet. Tuning of the composite components could lead to new materials for centralized and decentralized water purification systems.
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Affiliation(s)
- Archismita Misra
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Christian Zambrzycki
- Institute of Chemical Engineering, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Gabriele Kloker
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Anika Kotyrba
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Montaha H Anjass
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany.,Helmholtz Institute Ulm, Helmholtzstrasse 11, 89081, Ulm, Germany
| | - Isabel Franco Castillo
- Instituto de Ciencia de Materiales de Aragón (ICMA-CSIC), CSIC-Universidad de Zaragoza, 50009, Zaragoza, Spain
| | - Scott G Mitchell
- Instituto de Ciencia de Materiales de Aragón (ICMA-CSIC), CSIC-Universidad de Zaragoza, 50009, Zaragoza, Spain
| | - Robert Güttel
- Institute of Chemical Engineering, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Carsten Streb
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany.,Helmholtz Institute Ulm, Helmholtzstrasse 11, 89081, Ulm, Germany
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22
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Misra A, Zambrzycki C, Kloker G, Kotyrba A, Anjass MH, Franco Castillo I, Mitchell SG, Güttel R, Streb C. Wasseraufreinigung und Mikroplastik‐Entferung durch magnetische Polyoxometallat‐unterstützte ionische Flüssigphasen (magPOM‐SILPs). Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912111] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Archismita Misra
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Christian Zambrzycki
- Institute of Chemical Engineering Ulm University Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Gabriele Kloker
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Anika Kotyrba
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Montaha H. Anjass
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Deutschland
- Helmholtz Institute Ulm Helmholtzstr. 11 89081 Ulm Deutschland
| | - Isabel Franco Castillo
- Instituto de Ciencia de Materiales de Aragón (ICMA-CSIC) CSIC-Universidad de Zaragoza 50009 Zaragoza Spanien
| | - Scott G. Mitchell
- Instituto de Ciencia de Materiales de Aragón (ICMA-CSIC) CSIC-Universidad de Zaragoza 50009 Zaragoza Spanien
| | - Robert Güttel
- Institute of Chemical Engineering Ulm University Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Carsten Streb
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Deutschland
- Helmholtz Institute Ulm Helmholtzstr. 11 89081 Ulm Deutschland
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23
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Serrano-Sevilla I, Artiga Á, Mitchell SG, De Matteis L, de la Fuente JM. Natural Polysaccharides for siRNA Delivery: Nanocarriers Based on Chitosan, Hyaluronic Acid, and Their Derivatives. Molecules 2019; 24:E2570. [PMID: 31311176 PMCID: PMC6680562 DOI: 10.3390/molecules24142570] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [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: 05/28/2019] [Revised: 07/03/2019] [Accepted: 07/10/2019] [Indexed: 12/14/2022] Open
Abstract
Natural polysaccharides are frequently used in the design of drug delivery systems due to their biocompatibility, biodegradability, and low toxicity. Moreover, they are diverse in structure, size, and charge, and their chemical functional groups can be easily modified to match the needs of the final application and mode of administration. This review focuses on polysaccharidic nanocarriers based on chitosan and hyaluronic acid for small interfering RNA (siRNA) delivery, which are highly positively and negatively charged, respectively. The key properties, strengths, and drawbacks of each polysaccharide are discussed. In addition, their use as efficient nanodelivery systems for gene silencing applications is put into context using the most recent examples from the literature. The latest advances in this field illustrate effectively how chitosan and hyaluronic acid can be modified or associated with other molecules in order to overcome their limitations to produce optimized siRNA delivery systems with promising in vitro and in vivo results.
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Affiliation(s)
- Inés Serrano-Sevilla
- Instituto de Ciencia de Materiales de Aragón (ICMA), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- CIBER-BBN, Instituto de Salud Carlos III, Madrid, Spain
| | - Álvaro Artiga
- Instituto de Ciencia de Materiales de Aragón (ICMA), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- CIBER-BBN, Instituto de Salud Carlos III, Madrid, Spain
| | - Scott G Mitchell
- Instituto de Ciencia de Materiales de Aragón (ICMA), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- CIBER-BBN, Instituto de Salud Carlos III, Madrid, Spain
| | - Laura De Matteis
- CIBER-BBN, Instituto de Salud Carlos III, Madrid, Spain.
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, C/Mariano Esquillor s/n, 50018 Zaragoza, Spain.
| | - Jesús M de la Fuente
- Instituto de Ciencia de Materiales de Aragón (ICMA), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain.
- CIBER-BBN, Instituto de Salud Carlos III, Madrid, Spain.
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24
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Artiga Á, Serrano-Sevilla I, De Matteis L, Mitchell SG, de la Fuente JM. Current status and future perspectives of gold nanoparticle vectors for siRNA delivery. J Mater Chem B 2019; 7:876-896. [PMID: 32255093 DOI: 10.1039/c8tb02484g] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Discovering the vast therapeutic potential of siRNA opened up new clinical research areas focussing on a number of diseases and applications; however significant problems with siRNA stability and delivery have hindered its clinical applicability. As a result, interest in the development of practical siRNA delivery systems has grown in recent years. Of the numerous siRNA delivery strategies currently on offer, gold nanoparticles (AuNPs) stand out thanks to their biocompatibility and capacity to protect siRNA against degradation; not to mention the versatility offered by their tuneable shape, size and optical properties. Herein this review provides a complete summary of the methodologies for functionalizing AuNPs with siRNA, paying singular attention to the AuNP shape, size and surface coating, since these key factors heavily influence cellular interaction, internalization and, ultimately, the efficacy of the hybrid particle. The most noteworthy hybridization strategies have been highlighted along with the most innovative and outstanding in vivo studies with a view to increasing clinical interest in the use of AuNPs as siRNA nanocarriers.
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Affiliation(s)
- Álvaro Artiga
- Instituto de Ciencia de Materiales de Aragón (ICMA), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad de Zaragoza and CIBER-BBN, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain.
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25
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Ahmadpour A, Khadempir S, Ashraf N, Mitchell SG, Ahangari MH. A one-pot route for the synthesis of Au@Pd/PMo12/rGO as a dual functional electrocatalyst for ethanol electro-oxidation and hydrogen evolution reaction. RSC Adv 2019; 9:37537-37545. [PMID: 35542262 PMCID: PMC9075539 DOI: 10.1039/c9ra06915a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 08/31/2019] [Accepted: 11/09/2019] [Indexed: 12/31/2022] Open
Abstract
An in situ one-pot synthetic route for the synthesis of a Au@Pd/PMo12/reduced graphene oxide (rGO) nanocomposite is presented, where the Keggin-type polyoxometalate phosphomolybdic acid (PMo12) is used as both reducing and stabilizing agent. High-angle annular dark-field scanning transmission electron microscopy (HAADT-STEM), transmission electron microscopy (TEM), and X-ray diffraction analysis were applied to fully characterize the core–shell structure of Au@Pd/PMo12 on the rGO matrix. Electrochemical studies showed how this nanocomposite acts as a dual electrocatalyst for the ethanol electro-oxidation reaction (EOR) and the hydrogen evolution reaction (HER). For the EOR, the Au@Pd/PMo12/rGO electrocatalyst offers a low onset potential of −0.77 V vs. Ag/AgCl and a high peak current density of 41 mA cm−2 in alkaline medium. This feature is discussed via detailed cyclic voltammetry (CV) studies illustrating how the superior performance of the synthetic nanocomposite could be attributed to the synergistic effect of Au, Pd, PMo12 and rGO. Moreover, it has been confirmed that the proposed electrocatalyst exhibits low overpotentials for 10 mA cm−2 current density (η10) in different pH media. The values of η10 were −109, 300 and 250 mV vs. RHE in acidic, basic and neutral media, respectively. Also, the ability of the electrocatalyst to provide high HER current density and its remarkable stability have been confirmed. Au@Pd/PMo12/rGO nanocomposite was synthesized and used as a dual-functional electrocatalyst for HER and EOR.![]()
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Affiliation(s)
- Ali Ahmadpour
- Department of Chemical Engineering
- Ferdowsi University of Mashhad
- Mashhad
- Iran
| | - Sara Khadempir
- Department of Chemical Engineering
- Quchan University of Technology
- Quchan
- Iran
| | - Narges Ashraf
- Department of Chemistry
- Faculty of Sciences
- Ferdowsi University of Mashhad
- Mashhad
- Iran
| | - Scott G. Mitchell
- Instituto de Ciencia de Materiales de Aragón (ICMA-CSIC)
- CISC-Universidad de Zaragoza & CIBER-BBN
- 50009-Zaragoza
- Spain
| | - Mahdi H. Ahangari
- Department of Chemical Engineering
- Ferdowsi University of Mashhad
- Mashhad
- Iran
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26
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Julian I, Hueso JL, Lara N, Solé-Daurá A, Poblet JM, Mitchell SG, Mallada R, Santamaría J. Polyoxometalates as alternative Mo precursors for methane dehydroaromatization on Mo/ZSM-5 and Mo/MCM-22 catalysts. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01490j] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalytic stability and overall performance enhancement for the methane dehydroaromatization process using a combination of hexamolybdate species as Mo precursors and MCM-22 as catalysts support.
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Affiliation(s)
- Ignacio Julian
- Institute of Nanoscience of Aragon (INA) and Department of Chemical and Environmental Engineering
- University of Zaragoza
- 50018 Zaragoza
- Spain
- Institute of Materials Science of Aragon (ICMA)
| | - José L. Hueso
- Institute of Nanoscience of Aragon (INA) and Department of Chemical and Environmental Engineering
- University of Zaragoza
- 50018 Zaragoza
- Spain
- Institute of Materials Science of Aragon (ICMA)
| | - Nidya Lara
- Institute of Nanoscience of Aragon (INA) and Department of Chemical and Environmental Engineering
- University of Zaragoza
- 50018 Zaragoza
- Spain
| | - Albert Solé-Daurá
- Department of Química Física i Inorgànica
- Universitat Rovira I Virgili
- 43007 Tarragona
- Spain
| | - Josep M. Poblet
- Department of Química Física i Inorgànica
- Universitat Rovira I Virgili
- 43007 Tarragona
- Spain
| | - Scott G. Mitchell
- Institute of Materials Science of Aragon (ICMA)
- Consejo Superior de Investigaciones Científicas (CSIC) - University of Zaragoza
- 50009 Zaragoza
- Spain
- Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN)
| | - Reyes Mallada
- Institute of Nanoscience of Aragon (INA) and Department of Chemical and Environmental Engineering
- University of Zaragoza
- 50018 Zaragoza
- Spain
- Institute of Materials Science of Aragon (ICMA)
| | - Jesús Santamaría
- Institute of Nanoscience of Aragon (INA) and Department of Chemical and Environmental Engineering
- University of Zaragoza
- 50018 Zaragoza
- Spain
- Institute of Materials Science of Aragon (ICMA)
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27
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Misra A, Franco Castillo I, Müller DP, González C, Eyssautier-Chuine S, Ziegler A, de la Fuente JM, Mitchell SG, Streb C. Rücktitelbild: Polyoxometallat-ionische Flüssigkeiten (POM-ILs) als Antikorrosions- und antibakterielle Beschichtung für Natursteine (Angew. Chem. 45/2018). Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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)
- Archismita Misra
- Institut für Anorganische Chemie I; Universität Ulm; Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Isabel Franco Castillo
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC); CISC-Universidad de Zaragoza und CIBER-BBN; 50019 Zaragoza Spanien
| | - Daniel P. Müller
- Institut für Anorganische Chemie I; Universität Ulm; Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Carolina González
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC); CISC-Universidad de Zaragoza und CIBER-BBN; 50019 Zaragoza Spanien
| | - Stéphanie Eyssautier-Chuine
- Groupe d'Etude sur les Géomatériaux et les environnements, Naturels Anthropiques et Archéologiques (GEGENAA); Université de Reims Champagne-Ardenne; Centre de Recherches en Environnement et Agronomie; 51100 Reims Frankreich
| | - Andreas Ziegler
- Zentrale Einrichtung Elektronenmikroskopie; Universität Ulm; Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Jesús M. de la Fuente
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC); CISC-Universidad de Zaragoza und CIBER-BBN; 50019 Zaragoza Spanien
| | - Scott G. Mitchell
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC); CISC-Universidad de Zaragoza und CIBER-BBN; 50019 Zaragoza Spanien
| | - Carsten Streb
- Institut für Anorganische Chemie I; Universität Ulm; Albert-Einstein-Allee 11 89081 Ulm Deutschland
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28
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Misra A, Franco Castillo I, Müller DP, González C, Eyssautier-Chuine S, Ziegler A, de la Fuente JM, Mitchell SG, Streb C. Back Cover: Polyoxometalate-Ionic Liquids (POM-ILs) as Anticorrosion and Antibacterial Coatings for Natural Stones (Angew. Chem. Int. Ed. 45/2018). Angew Chem Int Ed Engl 2018. [DOI: 10.1002/anie.201811120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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)
- Archismita Misra
- Institute of Inorganic Chemistry I; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Isabel Franco Castillo
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC) and CIBER-BBN; CISC-Universidad de Zaragoza; 50019 Zaragoza Spain
| | - Daniel P. Müller
- Institute of Inorganic Chemistry I; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Carolina González
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC) and CIBER-BBN; CISC-Universidad de Zaragoza; 50019 Zaragoza Spain
| | - Stéphanie Eyssautier-Chuine
- Groupe d'Etude sur les Géomatériaux et les environnements Naturels Anthropiques et Archéologiques (GEGENAA); Université de Reims Champagne-Ardenne; Centre de Recherches en Environnement et Agronomie; 51100 Reims France
| | - Andreas Ziegler
- Central Unit Electron Microscopy; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Jesús M. de la Fuente
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC) and CIBER-BBN; CISC-Universidad de Zaragoza; 50019 Zaragoza Spain
| | - Scott G. Mitchell
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC) and CIBER-BBN; CISC-Universidad de Zaragoza; 50019 Zaragoza Spain
| | - Carsten Streb
- Institute of Inorganic Chemistry I; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
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29
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Misra A, Franco Castillo I, Müller DP, González C, Eyssautier-Chuine S, Ziegler A, de la Fuente JM, Mitchell SG, Streb C. Polyoxometallat-ionische Flüssigkeiten (POM-ILs) als Antikorrosions- und antibakterielle Beschichtung für Natursteine. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809893] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Archismita Misra
- Institut für Anorganische Chemie I; Universität Ulm; Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Isabel Franco Castillo
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC); CISC-Universidad de Zaragoza und CIBER-BBN; 50019 Zaragoza Spanien
| | - Daniel P. Müller
- Institut für Anorganische Chemie I; Universität Ulm; Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Carolina González
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC); CISC-Universidad de Zaragoza und CIBER-BBN; 50019 Zaragoza Spanien
| | - Stéphanie Eyssautier-Chuine
- Groupe d'Etude sur les Géomatériaux et les environnements, Naturels Anthropiques et Archéologiques (GEGENAA); Université de Reims Champagne-Ardenne; Centre de Recherches en Environnement et Agronomie; 51100 Reims Frankreich
| | - Andreas Ziegler
- Zentrale Einrichtung Elektronenmikroskopie; Universität Ulm; Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Jesús M. de la Fuente
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC); CISC-Universidad de Zaragoza und CIBER-BBN; 50019 Zaragoza Spanien
| | - Scott G. Mitchell
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC); CISC-Universidad de Zaragoza und CIBER-BBN; 50019 Zaragoza Spanien
| | - Carsten Streb
- Institut für Anorganische Chemie I; Universität Ulm; Albert-Einstein-Allee 11 89081 Ulm Deutschland
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30
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Misra A, Franco Castillo I, Müller DP, González C, Eyssautier-Chuine S, Ziegler A, de la Fuente JM, Mitchell SG, Streb C. Polyoxometalate-Ionic Liquids (POM-ILs) as Anticorrosion and Antibacterial Coatings for Natural Stones. Angew Chem Int Ed Engl 2018; 57:14926-14931. [PMID: 30175450 DOI: 10.1002/anie.201809893] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [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: 08/28/2018] [Indexed: 01/18/2023]
Abstract
Corrosion of stone by acid rain and deterioration from biofilms are global problems for industrial and residential buildings as well as cultural heritage, such as statues or historic buildings. Herein we show how typical building stones can be protected from corrosion ("weathering") and biofilm formation ("biodeterioration") by application of thin films of polyoxometalate-based ionic liquids (POM-ILs). Stone samples are coated with hydrophobic, acid resistant POM-ILs featuring biocidal properties. Exposure of the samples to simulated acid rain showed negligible corrosion compared to the significant deterioration of unprotected samples; in addition the biocidal properties of the POM-ILs suppress the formation of biofilms on coated stone slabs. A new class of modular molecular materials for protecting stones can now be developed for use in construction, environmental protection, and cultural heritage preservation.
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Affiliation(s)
- Archismita Misra
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Isabel Franco Castillo
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC) and CIBER-BBN, CISC-Universidad de Zaragoza, 50019, Zaragoza, Spain
| | - Daniel P Müller
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Carolina González
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC) and CIBER-BBN, CISC-Universidad de Zaragoza, 50019, Zaragoza, Spain
| | - Stéphanie Eyssautier-Chuine
- Groupe d'Etude sur les Géomatériaux et les environnements Naturels Anthropiques et Archéologiques (GEGENAA), Université de Reims Champagne-Ardenne, Centre de Recherches en Environnement et Agronomie, 51100, Reims, France
| | - Andreas Ziegler
- Central Unit Electron Microscopy, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Jesús M de la Fuente
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC) and CIBER-BBN, CISC-Universidad de Zaragoza, 50019, Zaragoza, Spain
| | - Scott G Mitchell
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC) and CIBER-BBN, CISC-Universidad de Zaragoza, 50019, Zaragoza, Spain
| | - Carsten Streb
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
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Artiga Á, García-Embid S, De Matteis L, Mitchell SG, de la Fuente JM. Effective in Vitro Photokilling by Cell-Adhesive Gold Nanorods. Front Chem 2018; 6:234. [PMID: 29988482 PMCID: PMC6024193 DOI: 10.3389/fchem.2018.00234] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 04/27/2018] [Accepted: 06/01/2018] [Indexed: 11/13/2022] Open
Abstract
Upon excitation of their localized surface plasmon resonance (LSPR) band, gold nanorods (AuNRs) show a characteristic light-to-heat transduction, a useful and versatile property for a range of biomedical applications such as photothermal therapy, drug delivery, optoacoustic imaging and biosensing, among others. Nanoparticle (NP)-mediated photothermal therapy (PTT) rests on the ability of nanomaterials to convert light energy into heat and can currently be considered as a promising method for selectively destroying tumor cells by (photo)-thermoablation. One inherent limitation to NP-mediated PTT is that the nanoparticles must arrive at the site of action to exert their function and this typically involves cellular internalization. Here we report the use of the Keggin-type polyoxometalate (POM) phosphotungstic acid (PTA) as an inorganic gelling agent for the encapsulation of plasmonic gold nanorods (AuNRs) inside a biocompatible and cell-adhesive chitosan hydrogel matrix. These functional sub-micrometric containers are non-cytotoxic and present the ability to adhere to the cytoplasmic membranes of cells avoiding any need for cellular internalization, rendering them as highly efficient thermoablating agents of eukaryotic cells in vitro.
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Affiliation(s)
- Álvaro Artiga
- Instituto de Ciencia de Materiales de Aragón, Consejo Superior de Investigaciones Científicas, Universidad de Zaragoza and CIBER-BBN, Zaragoza, Spain
| | - Sonia García-Embid
- Instituto de Ciencia de Materiales de Aragón, Consejo Superior de Investigaciones Científicas, Universidad de Zaragoza and CIBER-BBN, Zaragoza, Spain
| | - Laura De Matteis
- Instituto de Nanociencia de Aragón, Universidad de Zaragoza and CIBER-BBN, Zaragoza, Spain
| | - Scott G. Mitchell
- Instituto de Ciencia de Materiales de Aragón, Consejo Superior de Investigaciones Científicas, Universidad de Zaragoza and CIBER-BBN, Zaragoza, Spain
| | - Jesús M. de la Fuente
- Instituto de Ciencia de Materiales de Aragón, Consejo Superior de Investigaciones Científicas, Universidad de Zaragoza and CIBER-BBN, Zaragoza, Spain
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Pérez-Hernández M, Moros M, Stepien G, Del Pino P, Menao S, de Las Heras M, Arias M, Mitchell SG, Pelaz B, Gálvez EM, de la Fuente JM, Pardo J. Multiparametric analysis of anti-proliferative and apoptotic effects of gold nanoprisms on mouse and human primary and transformed cells, biodistribution and toxicity in vivo. Part Fibre Toxicol 2017; 14:41. [PMID: 29073907 PMCID: PMC5658988 DOI: 10.1186/s12989-017-0222-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 02/02/2017] [Accepted: 10/17/2017] [Indexed: 12/02/2022] Open
Abstract
Background The special physicochemical properties of gold nanoprisms make them very useful for biomedical applications including biosensing and cancer therapy. However, it is not clear how gold nanoprisms may affect cellular physiology including viability and other critical functions. We report a multiparametric investigation on the impact of gold-nanoprisms on mice and human, transformed and primary cells as well as tissue distribution and toxicity in vivo after parental injection. Methods Cellular uptake of the gold-nanoprisms (NPRs) and the most crucial parameters of cell fitness such as generation of reactive oxygen species (ROS), mitochondria membrane potential, cell morphology and apoptosis were systematically assayed in cells. Organ distribution and toxicity including inflammatory response were analysed in vivo in mice at 3 days or 4 months after parental administration. Results Internalized gold-nanoprisms have a significant impact in cell morphology, mitochondrial function and ROS production, which however do not affect the potential of cells to proliferate and form colonies. In vivo NPRs were only detected in spleen and liver at 3 days and 4 months after administration, which correlated with some changes in tissue architecture. However, the main serum biochemical markers of organ damage and inflammation (TNFα and IFNγ) remained unaltered even after 4 months. In addition, animals did not show any macroscopic sign of toxicity and remained healthy during all the study period. Conclusion Our data indicate that these gold-nanoprisms are neither cytotoxic nor cytostatic in transformed and primary cells, and suggest that extensive parameters should be analysed in different cell types to draw useful conclusions on nanomaterials safety. Moreover, although there is a tendency for the NPRs to accumulate in liver and spleen, there is no observable negative impact on animal health. Electronic supplementary material The online version of this article (10.1186/s12989-017-0222-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Marta Pérez-Hernández
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Ciencias, Universidad de Zaragoza, 50009, Zaragoza, Spain. .,Instituto de Investigación Sanitaria de Aragón (IIS Aragón), Centro de Investigación Biomédica de Aragón (CIBA), Universidad de Zaragoza, 50009, Zaragoza, Spain.
| | - María Moros
- Instituto Universitario de Nanociencia de Aragón (INA), Universidad de Zaragoza, 50018, Zaragoza, Spain.,Institute of Applied Sciences and Intelligent Systems-CNR, Via Campi Flegrei, 34, 80078, Pozzuoli, Italy
| | - Grazyna Stepien
- Fundación Instituto Universitario de Nanociencia de Aragón (FINA), Universidad de Zaragoza, 50018, Zaragoza, Spain.,CIBER in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Zaragoza, Spain
| | - Pablo Del Pino
- Instituto Universitario de Nanociencia de Aragón (INA), Universidad de Zaragoza, 50018, Zaragoza, Spain.,Centro Singular de Investigación en Química Biológica y Materiales Moleculares (CiQUS) y Departamento de Física de Partículas, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Sebastián Menao
- Departamento de Bioquímica clínica. H.C.U. Lozano Blesa, 50009, Zaragoza, Spain
| | - Marcelo de Las Heras
- Departamento de Patología Animal, Facultad de Veterinaria, Universidad de Zaragoza, 50009, Zaragoza, Spain
| | - Maykel Arias
- Instituto de Investigación Sanitaria de Aragón (IIS Aragón), Centro de Investigación Biomédica de Aragón (CIBA), Universidad de Zaragoza, 50009, Zaragoza, Spain
| | - Scott G Mitchell
- Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, Zaragoza, Spain
| | - Beatriz Pelaz
- Instituto Universitario de Nanociencia de Aragón (INA), Universidad de Zaragoza, 50018, Zaragoza, Spain.,Centro Singular de Investigación en Química Biológica y Materiales Moleculares (CiQUS) y Departamento de Física de Partículas, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Eva M Gálvez
- Instituto de Carboquímica ICB-CSIC, 50018, Zaragoza, Spain
| | - Jesús M de la Fuente
- CIBER in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Zaragoza, Spain.,Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, Zaragoza, Spain
| | - Julián Pardo
- Instituto de Investigación Sanitaria de Aragón (IIS Aragón), Centro de Investigación Biomédica de Aragón (CIBA), Universidad de Zaragoza, 50009, Zaragoza, Spain.,Instituto Universitario de Nanociencia de Aragón (INA), Universidad de Zaragoza, 50018, Zaragoza, Spain.,Departamento de Microbiología, Medicina Preventiva y Salud Pública, Facultad de Medicina, Universidad de Zaragoza, 50009, Zaragoza, Spain.,Aragón I+D Foundation (ARAID), Gobierno de Aragón, Zaragoza, Spain
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Kubo AL, Kremer L, Herrmann S, Mitchell SG, Bondarenko OM, Kahru A, Streb C. Antimicrobial Activity of Polyoxometalate Ionic Liquids against Clinically Relevant Pathogens. Chempluschem 2017; 82:867-871. [PMID: 31961570 DOI: 10.1002/cplu.201700251] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [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: 05/31/2017] [Indexed: 12/30/2022]
Abstract
The activity of a new class of antimicrobials-polyoxometalate ionic liquids (POM-ILs)-is systematically investigated. The prototype POM-ILs feature Keggin-type anions (α-SiW11 O39 8- ) and tetraalkylammonium ions as active cationic species. Antimicrobial tests of the POM-ILs against important human pathogens show that variation of the alkyl chain length of the cation leads to significant changes in antimicrobial activity against the medically relevant Gram-negative bacteria Escherichia coli and Pseudomonas aeruginosa, and especially against the Gram-positive Staphylococcus aureus. Owing to the unique materials properties of the POM-ILs, such as high viscosity and water immiscibility, applications of antimicrobial surface coatings against airborne pathogens or for water decontamination can be envisaged. Furthermore, the combination of antimicrobially active cations with POM anions might afford new POM-ILs with two active components.
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Affiliation(s)
- Anna-Liisa Kubo
- National Institute of Chemical Physics and Biophysics, Laboratory of Environmental Toxicology, Akadeemia tee 23, Tallinn, 12618, Estonia
| | - Lea Kremer
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Sven Herrmann
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Scott G Mitchell
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC), CISC-Universidad de Zaragoza, 50019, Zaragoza, Spain
| | - Olesja M Bondarenko
- National Institute of Chemical Physics and Biophysics, Laboratory of Environmental Toxicology, Akadeemia tee 23, Tallinn, 12618, Estonia
| | - Anne Kahru
- National Institute of Chemical Physics and Biophysics, Laboratory of Environmental Toxicology, Akadeemia tee 23, Tallinn, 12618, Estonia.,Estonian Academy of Sciences, Kohtu 6, Tallinn, 10130, Estonia
| | - Carsten Streb
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
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Boyd T, Mitchell SG, Gabb D, Long DL, Song YF, Cronin L. POMzites: A Family of Zeolitic Polyoxometalate Frameworks from a Minimal Building Block Library. J Am Chem Soc 2017; 139:5930-5938. [PMID: 28368582 PMCID: PMC5423706 DOI: 10.1021/jacs.7b01807] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [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: 02/21/2017] [Indexed: 01/06/2023]
Abstract
We describe why the cyclic heteropolyanion [P8W48O184]40- (abbreviated as {P8W48}) is an ideal building block for the construction of intrinsically porous framework materials by classifying and analyzing >30 coordination polymers incorporating this polyoxometalate (POM) ligand. This analysis shows that the exocyclic coordination of first-row transition metals (TMs) to {P8W48} typically yields frameworks which extend through {W-O-TM-O-W} bridges in one, two, or three dimensions. However, despite the rich structural diversity of such compounds, the coordination of TMs to the {P8W48} ring is poorly understood, and therefore largely unpredictable, and had not until now been present with any structural classification that could allow rational design. Herein, not only do we present a new approach to understand and classify this new class of materials, we also present three {P8W48}-based frameworks which complement those frameworks which have previously been described. These new compounds help us postulate a new taxonomy of these materials. This is possible because the TM coordination sites of the {P8W48} ring are found, once fully mapped, to lead to well-defined classes of connectivity. Together, analysis provides insight into the nature of the building block connectivity within each framework, to facilitate comparisons between related structures, and to fundamentally unite this family of compounds. Hence we have tentatively named these compounds as "POMzites" to reflect the POM-based composition and zeolitic nature of each family member, although crucially, POMzites differ from zeolites in the modular manner of their preparation. As the synthesis of further POMzites is anticipated, the classification system and terminology introduced here will allow new compounds to be categorized and understood in the context of the established materials. A better understanding of TM coordination to the {P8W48} ring may allow the targeted synthesis of new frameworks rather than the reliance on serendipity apparent in current methods.
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Affiliation(s)
- Thomas Boyd
- WestCHEM, School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, U.K.
| | - Scott G. Mitchell
- WestCHEM, School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, U.K.
| | - David Gabb
- WestCHEM, School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, U.K.
| | - De-Liang Long
- WestCHEM, School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, U.K.
| | | | - Leroy Cronin
- WestCHEM, School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, U.K.
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Zhan C, Cameron JM, Gabb D, Boyd T, Winter RS, Vilà-Nadal L, Mitchell SG, Glatzel S, Breternitz J, Gregory DH, Long DL, Macdonell A, Cronin L. A metamorphic inorganic framework that can be switched between eight single-crystalline states. Nat Commun 2017; 8:14185. [PMID: 28194009 PMCID: PMC5316803 DOI: 10.1038/ncomms14185] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [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: 11/21/2016] [Accepted: 12/07/2016] [Indexed: 02/04/2023] Open
Abstract
The design of highly flexible framework materials requires organic linkers, whereas inorganic materials are more robust but inflexible. Here, by using linkable inorganic rings made up of tungsten oxide (P8W48O184) building blocks, we synthesized an inorganic single crystal material that can undergo at least eight different crystal-to-crystal transformations, with gigantic crystal volume contraction and expansion changes ranging from -2,170 to +1,720 Å3 with no reduction in crystallinity. Not only does this material undergo the largest single crystal-to-single crystal volume transformation thus far reported (to the best of our knowledge), the system also shows conformational flexibility while maintaining robustness over several cycles in the reversible uptake and release of guest molecules switching the crystal between different metamorphic states. This material combines the robustness of inorganic materials with the flexibility of organic frameworks, thereby challenging the notion that flexible materials with robustness are mutually exclusive.
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Affiliation(s)
- Caihong Zhan
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, U.K
| | - Jamie M Cameron
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, U.K
| | - David Gabb
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, U.K
| | - Thomas Boyd
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, U.K
| | - Ross S Winter
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, U.K
| | - Laia Vilà-Nadal
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, U.K
| | - Scott G Mitchell
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, U.K
| | - Stefan Glatzel
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, U.K
| | - Joachim Breternitz
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, U.K
| | - Duncan H Gregory
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, U.K
| | - De-Liang Long
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, U.K
| | - Andrew Macdonell
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, U.K
| | - Leroy Cronin
- WestCHEM, School of Chemistry, University of Glasgow, University Avenue, Glasgow G12 8QQ, U.K
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Schwartz RP, McNeely J, Wu LT, Sharma G, Wahle A, Cushing C, Nordeck CD, Sharma A, O'Grady KE, Gryczynski J, Mitchell SG, Ali RL, Marsden J, Subramaniam GA. Identifying substance misuse in primary care: TAPS Tool compared to the WHO ASSIST. J Subst Abuse Treat 2017; 76:69-76. [PMID: 28159441 DOI: 10.1016/j.jsat.2017.01.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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: 10/07/2016] [Revised: 01/25/2017] [Accepted: 01/25/2017] [Indexed: 12/01/2022]
Abstract
BACKGROUND There is a need for screening and brief assessment instruments to identify primary care patients with substance use problems. This study's aim was to examine the performance of a two-step screening and brief assessment instrument, the TAPS Tool, compared to the WHO ASSIST. METHODS Two thousand adult primary care patients recruited from five primary care clinics in four Eastern US states completed the TAPS Tool followed by the ASSIST. The ability of the TAPS Tool to identify moderate- and high-risk use scores on the ASSIST was examined using sensitivity and specificity analyses. RESULTS The interviewer and self-administered computer tablet versions of the TAPS Tool generated similar results. The interviewer-administered version (at cut-off of 2), had acceptable sensitivity and specificity for high-risk tobacco (0.90 and 0.77) and alcohol (0.87 and 0.80) use. For illicit drugs, sensitivities were >0.82 and specificities >0.92. The TAPS (at a cut-off of 1) had good sensitivity and specificity for moderate-risk tobacco use (0.83 and 0.97) and alcohol (0.83 and 0.74). Among illicit drugs, sensitivity was acceptable for moderate-risk of marijuana (0.71), while it was low for all other illicit drugs and non-medical use of prescription medications. Specificities were 0.97 or higher for all illicit drugs and prescription medications. CONCLUSIONS The TAPS Tool identified adult primary care patients with high-risk ASSIST scores for all substances as well moderate-risk users of tobacco, alcohol, and marijuana, although it did not perform well in identifying patients with moderate-risk use of other drugs or non-medical use of prescription medications. The advantages of the TAPS Tool over the ASSIST are its more limited number of items and focus solely on substance use in the past 3months.
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Affiliation(s)
- R P Schwartz
- Friends Research Institute, 1040 Park Avenue, Suite 103, Baltimore, MD 21201, USA.
| | - J McNeely
- New York University School of Medicine, Department of Population Health, 550 First Avenue, VZ30 6th floor, New York, NY 10016, USA.
| | - L T Wu
- Duke University, Department of Psychiatry and Behavioral Sciences and Department of Medicine, Duke University Medical Center, Durham, NC, USA.
| | - G Sharma
- Emmes Corporation, 401 North Washington Street, Suite 700, Rockville, MD 20850, USA.
| | - A Wahle
- Emmes Corporation, 401 North Washington Street, Suite 700, Rockville, MD 20850, USA
| | - C Cushing
- National Institute on Drug Abuse, 6001 Executive Boulevard, Rockville, MD 20852, USA
| | - C D Nordeck
- Friends Research Institute, 1040 Park Avenue, Suite 103, Baltimore, MD 21201, USA
| | - A Sharma
- Friends Research Institute, 1040 Park Avenue, Suite 103, Baltimore, MD 21201, USA
| | - K E O'Grady
- University of Maryland, College Park, Department of Psychology, 4094 Campus Dr., College Park, MD 20742, USA
| | - J Gryczynski
- Friends Research Institute, 1040 Park Avenue, Suite 103, Baltimore, MD 21201, USA
| | - S G Mitchell
- Friends Research Institute, 1040 Park Avenue, Suite 103, Baltimore, MD 21201, USA
| | - R L Ali
- University of Adelaide, Department of Pharmacology, Frome Road, Level 5, Medical School North Bldg, The University of Adelaide, Adelaide, SA 5005, Australia.
| | - J Marsden
- Addictions Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, Addiction Sciences Building, 4 Windsor Walk, Denmark Hill, SE5 8BB London, United Kingdom.
| | - G A Subramaniam
- National Institute on Drug Abuse, 6001 Executive Boulevard, Rockville, MD 20852, USA.
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Herrmann S, De Matteis L, de la Fuente JM, Mitchell SG, Streb C. Removal of Multiple Contaminants from Water by Polyoxometalate Supported Ionic Liquid Phases (POM-SILPs). Angew Chem Int Ed Engl 2017; 56:1667-1670. [PMID: 28079959 DOI: 10.1002/anie.201611072] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [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: 11/11/2016] [Indexed: 11/06/2022]
Abstract
The simultaneous removal of organic, inorganic, and microbial contaminants from water by one material offers significant advantages when fast, facile, and robust water purification is required. Herein, we present a supported ionic liquid phase (SILP) composite where each component targets a specific type of water contaminant: a polyoxometalate-ionic liquid (POM-IL) is immobilized on porous silica, giving the heterogeneous SILP. The water-insoluble POM-IL is composed of antimicrobial alkylammonium cations and lacunary polyoxometalate anions with heavy-metal binding sites. The lipophilicity of the POM-IL enables adsorption of organic contaminants. The silica support can bind radionuclides. Using the POM-SILP in filtration columns enables one-step multi-contaminant water purification. The results show how multi-functional POM-SILPs can be designed for advanced purification applications.
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Affiliation(s)
- Sven Herrmann
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Laura De Matteis
- Instituto de Nanosciencia de Aragon (INA), Universidad de Zaragoza and CIBER-BBN, C/ Mariano Esquillor s/n, 50018, Zaragoza, Spain
| | - Jesús M de la Fuente
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC), CISC-Universidad de Zaragoza and CIBER-BBN, C/Pedro Cerbuna 12, 50019, Zaragoza, Spain
| | - Scott G Mitchell
- Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC), CISC-Universidad de Zaragoza and CIBER-BBN, C/Pedro Cerbuna 12, 50019, Zaragoza, Spain
| | - Carsten Streb
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
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Herrmann S, De Matteis L, de la Fuente JM, Mitchell SG, Streb C. Entfernung von organischen, anorganischen und mikrobiellen Schadstoffen aus Wasser durch immobilisierte Polyoxometallat-basierte ionische Flüssigkeiten (POM-SILPs). Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611072] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Sven Herrmann
- Institut für Anorganische Chemie I; Universität Ulm; Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Laura De Matteis
- Instituto de Nanosciencia de Aragon (INA); University of Zaragoza and CIBER-BBN; C/ Mariano Esquillor s/n 50018 Zaragoza Spanien
| | - Jesús M. de la Fuente
- Aragon Materials Science Institute (ICMA); CISC-University of Zaragoza and CIBER-BBN; C/Pedro Cerbuna 12 50009 Zaragoza Spanien
| | - Scott G. Mitchell
- Aragon Materials Science Institute (ICMA); CISC-University of Zaragoza and CIBER-BBN; C/Pedro Cerbuna 12 50009 Zaragoza Spanien
| | - Carsten Streb
- Institut für Anorganische Chemie I; Universität Ulm; Albert-Einstein-Allee 11 89081 Ulm Deutschland
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Abstract
The instantaneous formation of cerium vanadium oxide gels starting from polyoxovanadates is reported together with their application in pollutant removal and controlled acid release.
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Affiliation(s)
| | - Mojca Rangus
- Erlangen Catalysis Resource Center ECRC
- Friedrich-Alexander-Universität Erlangen-Nürnberg
- 91058 Erlangen
- Germany
| | - Martin Hartmann
- Erlangen Catalysis Resource Center ECRC
- Friedrich-Alexander-Universität Erlangen-Nürnberg
- 91058 Erlangen
- Germany
| | - Scott G. Mitchell
- Instituto de Ciencia de Materiales de Aragón (ICMA-CSIC)
- Universidad de Zaragoza
- 50019-Zaragoza
- Spain
| | - Carsten Streb
- Institute of Inorganic Chemistry I
- Ulm University
- 89081 Ulm
- Germany
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Alfranca G, Artiga Á, Stepien G, Moros M, Mitchell SG, de la Fuente JM. Gold nanoprism-nanorod face off: comparing the heating efficiency, cellular internalization and thermoablation capacity. Nanomedicine (Lond) 2016; 11:2903-2916. [PMID: 27785974 DOI: 10.2217/nnm-2016-0257] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIM This work compares the synthesis, heating capability, cellular internalization and thermoablation capacity of two different types of anisotropic gold nanoparticles: gold nanorods (NRs) and nanoprisms (NPrs). METHODS Both particles possess surface plasmon resonance absorption bands in the near-IR, and their heating efficiency upon irradiation with a continuous near-IR laser (1064 nm) was evaluated. The cellular internalization, location and toxicity of these PEG-stabilized NPrs and NRs were then assessed in the Vero cell line by transmission electron microscopy and inductively coupled plasma mass spectrometry analysis, and their ability to induce cell death upon laser irradiation was then evaluated and compared. RESULTS & CONCLUSION Although both nanoparticles are highly efficient photothermal converters, NRs possessed a more efficient heating capability, yet the in vitro thermoablation studies clearly demonstrated that NPrs were more effective at inducing cell death through photothermal ablation due to their greater cellular internalization.
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Affiliation(s)
- Gabriel Alfranca
- Institute of Nano Biomedicine and Engineering, Key Laboratory for Thin Film & Microfabrication Technology of the Ministry of Education, Shanghai Jiao Tong University, 200240-Shanghai, PR China.,Instituto de Ciencia de Materiales de Aragón (ICMA-CSIC), Universidad de Zaragoza, 50009-Zaragoza, Spain
| | - Álvaro Artiga
- Instituto de Ciencia de Materiales de Aragón (ICMA-CSIC), Universidad de Zaragoza, 50009-Zaragoza, Spain
| | - Grazyna Stepien
- Instituto de Nanociencia de Aragón, Universidad de Zaragoza, 50018-Zaragoza, Spain
| | - María Moros
- Istituto di Scienze Applicate e Sistemi Intelligenti 'Eduardo Caianiello,' 80078-Naples, Italy
| | - Scott G Mitchell
- Instituto de Ciencia de Materiales de Aragón (ICMA-CSIC), Universidad de Zaragoza, 50009-Zaragoza, Spain
| | - Jesús M de la Fuente
- Institute of Nano Biomedicine and Engineering, Key Laboratory for Thin Film & Microfabrication Technology of the Ministry of Education, Shanghai Jiao Tong University, 200240-Shanghai, PR China.,Instituto de Ciencia de Materiales de Aragón (ICMA-CSIC), Universidad de Zaragoza, 50009-Zaragoza, Spain
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Khadempir S, Ahmadpour A, Hamed Mosavian MT, Ashraf N, Bamoharram FF, Fernández-Pacheco R, de la Fuente JM, Mitchell SG. Mechanistic insights into the activation process in electrocatalytic ethanol oxidation by phosphomolybdic acid-stabilised palladium(0) nanoparticles (PdNPs@PMo12). RSC Adv 2016. [DOI: 10.1039/c5ra22698h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A Keggin type polyoxometalate (POM), phosphomolybdic acid (PMo12), has been employed to encapsulate and stabilise pseudo-spherical Pd(0) nanoparticles (PdNPs).
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Affiliation(s)
- Sara Khadempir
- Department of Chemical Engineering
- Ferdowsi University of Mashhad
- Mashhad
- Iran
| | - Ali Ahmadpour
- Department of Chemical Engineering
- Ferdowsi University of Mashhad
- Mashhad
- Iran
| | | | - Narges Ashraf
- Department of Chemistry
- Faculty of Sciences
- Ferdowsi University of Mashhad
- Mashhad
- Iran
| | | | | | | | - Scott G. Mitchell
- Instituto de Ciencia de Materiales de Aragón-CSIC/Universidad de Zaragoza
- Spain
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42
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Gabas IM, Stepien G, Moros M, Mitchell SG, de la Fuente JM. In vitro cell cytotoxicity profile and morphological response to polyoxometalate-stabilised gold nanoparticles. NEW J CHEM 2016. [DOI: 10.1039/c5nj02775f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polyoxometalate-stabilised gold nanoparticles internalise in vast quantities into kidney epithelial and skin melanoma cell lines causing antiproliferative action on tumoural cells.
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Affiliation(s)
| | - Grazyna Stepien
- Instituto de Nanociencia de Aragón (INA)
- Universidad de Zaragoza
- Spain
| | - María Moros
- Istituto di Scienze Applicate e Sistemi Intelligenti-CNR
- Pozzuoli
- Italy
| | - Scott G. Mitchell
- Instituto de Ciencia de Materiales de Aragón-CSIC/Universidad de Zaragoza
- Spain
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43
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Lang Z, Gabas IM, López X, Clotet A, de la Fuente JM, Mitchell SG, Poblet JM. On the formation of gold nanoparticles from [AuIIICl4]− and a non-classical reduced polyoxomolybdate as an electron source: a quantum mechanical modelling and experimental study. NEW J CHEM 2016. [DOI: 10.1039/c5nj02773j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DFT calculations and experimental data prove that the [Na{(MoV2O4)3(μ2-O)3(μ2-SO3)3(μ6-SO3)}2]15− POM is capable of completely reducing Au(iii) to Au(0).
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Affiliation(s)
- Zhongling Lang
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- 43007 Tarragona
- Spain
| | - Isabel Maicas Gabas
- Instituto de Nanociencia de Aragón (INA)
- Universidad de Zaragoza
- 50018 Zaragoza
- Spain
| | - Xavier López
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- 43007 Tarragona
- Spain
| | - Anna Clotet
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- 43007 Tarragona
- Spain
| | | | - Scott G. Mitchell
- Instituto de Ciencia de Materiales de Aragón-CSIC/Universidad de Zaragoza
- Spain
| | - Josep M. Poblet
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- 43007 Tarragona
- Spain
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44
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Pérez-Hernández M, Del Pino P, Mitchell SG, Moros M, Stepien G, Pelaz B, Parak WJ, Gálvez EM, Pardo J, de la Fuente JM. Dissecting the molecular mechanism of apoptosis during photothermal therapy using gold nanoprisms. ACS Nano 2015; 9:52-61. [PMID: 25493329 DOI: 10.1021/nn505468v] [Citation(s) in RCA: 257] [Impact Index Per Article: 28.6] [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: 05/21/2023]
Abstract
The photothermal response of plasmonic nanomaterials can be exploited for a number of biomedical applications in diagnostics (biosensing and optoacoustic imaging) and therapy (drug delivery and photothermal therapy). The most common cellular response to photothermal cancer treatment (ablation of solid tumors) using plasmonic nanomaterials is necrosis, a process that releases intracellular constituents into the extracellular milieu producing detrimental inflammatory responses. Here we report the use of laser-induced photothermal therapy employing gold nanoprisms (NPRs) to specifically induce apoptosis in mouse embryonic fibroblast cells transformed with the SV40 virus. Laser-irradiated "hot" NPRs activate the intrinsic/mitochondrial pathway of apoptosis (programmed cell death), which is mediated by the nuclear-encoded proteins Bak and Bax through the activation of the BH3-only protein Bid. We confirm that an apoptosis mechanism is responsible by showing how the NPR-mediated cell death is dependent on the presence of caspase-9 and caspase-3 proteins. The ability to selectively induce apoptotic cell death and to understand the subsequent mechanisms provides the foundations to predict and optimize NP-based photothermal therapy to treat cancer patients suffering from chemo- and radioresistance.
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Affiliation(s)
- Marta Pérez-Hernández
- Instituto Universitario de Nanociencia de Aragón (INA), Universidad de Zaragoza , 50018 Zaragoza, Spain
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Khadempir S, Ahmadpour A, Hamed Mosavian MT, Ashraf N, Bamoharram FF, Mitchell SG, de la Fuente JM. A polyoxometalate-assisted approach for synthesis of Pd nanoparticles on graphene nanosheets: synergistic behaviour for enhanced electrocatalytic activity. RSC Adv 2015. [DOI: 10.1039/c5ra01084e] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel activation step has been applied to the Pd/PMo12/GNSs nanohybrid, which enhances the electrocatalytic activity.
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Affiliation(s)
- Sara Khadempir
- Department of Chemical Engineering
- Faculty of Engineering
- Ferdowsi University of Mashhad
- Mashhad
- Iran
| | - Ali Ahmadpour
- Department of Chemical Engineering
- Faculty of Engineering
- Ferdowsi University of Mashhad
- Mashhad
- Iran
| | | | - Narges Ashraf
- Department of Chemistry
- Faculty of Sciences
- Ferdowsi University of Mashhad
- Mashhad
- Iran
| | | | - Scott G. Mitchell
- Instituto de Nanociencia de Aragon (INA)
- Universidad de Zaragoza
- 50018-Zaragoza
- Spain
| | - Jesús M. de la Fuente
- Instituto de Nanociencia de Aragon (INA)
- Universidad de Zaragoza
- 50018-Zaragoza
- Spain
- Instituto de Ciencia de Materiales de Aragón (ICMA)
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46
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Fratila RM, Mitchell SG, del Pino P, Grazu V, de la Fuente JM. Strategies for the biofunctionalization of gold and iron oxide nanoparticles. Langmuir 2014; 30:15057-71. [PMID: 24911468 DOI: 10.1021/la5015658] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The field of nanotechnology applied to medicine (nanomedicine) is developing at a fast pace and is expected to provide solutions for early diagnosis, targeted therapy, and personalized medicine. However, designing nanomaterials for biomedical applications is not a trivial task. Avoidance of the immune system, stability in physiological media, control over the interaction of a nanomaterial with biological entities such as proteins and cell membranes, low toxicity, and optimal bioperformance are critical for the success of the designed nanomaterial. In this Feature Article we provide a concise overview of some of the most recent advances concerning the derivatization of gold and iron oxide nanoparticles for bioapplications. The most important aspects relating to the functionalization of gold and iron oxide nanoparticles with carbohydrates, peptides, nucleic acids, and antibodies are covered, highlighting the recent contributions from our research group. We suggest tips for the appropriate (bio)functionalization of these inorganic nanoparticles in order to preserve the biological activity of the attached biomolecules and ensure their subsequent stability in physiological media.
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Affiliation(s)
- Raluca M Fratila
- Instituto de Nanociencia de Aragon (INA), Universidad de Zaragoza , C/Mariano Esquillor s/n, 50018 Zaragoza, Spain
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De Matteis L, Mitchell SG, de la Fuente JM. Supramolecular antimicrobial capsules assembled from polyoxometalates and chitosan. J Mater Chem B 2014; 2:7114-7117. [DOI: 10.1039/c4tb01460j] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [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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Vilà‐Nadal L, Mitchell SG, Markov S, Busche C, Georgiev V, Asenov A, Cronin L. Towards Polyoxometalate‐Cluster‐Based Nano‐Electronics. Chemistry 2013; 19:16502-11. [DOI: 10.1002/chem.201301631] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Laia Vilà‐Nadal
- WestCHEM, School of Chemistry, Joseph Black Building, University of Glasgow, University Avenue, Glasgow, G12 8QQ (UK), Fax: (+44) 141‐330‐4888
| | - Scott G. Mitchell
- WestCHEM, School of Chemistry, Joseph Black Building, University of Glasgow, University Avenue, Glasgow, G12 8QQ (UK), Fax: (+44) 141‐330‐4888
| | - Stanislav Markov
- Department of Electronics & Electrical Engineering, Rankine Building, University of Glasgow, Oakfield Avenue, Glasgow, G12 8QQ (UK)
| | - Christoph Busche
- WestCHEM, School of Chemistry, Joseph Black Building, University of Glasgow, University Avenue, Glasgow, G12 8QQ (UK), Fax: (+44) 141‐330‐4888
| | - Vihar Georgiev
- Department of Electronics & Electrical Engineering, Rankine Building, University of Glasgow, Oakfield Avenue, Glasgow, G12 8QQ (UK)
| | - Asen Asenov
- Department of Electronics & Electrical Engineering, Rankine Building, University of Glasgow, Oakfield Avenue, Glasgow, G12 8QQ (UK)
| | - Leroy Cronin
- WestCHEM, School of Chemistry, Joseph Black Building, University of Glasgow, University Avenue, Glasgow, G12 8QQ (UK), Fax: (+44) 141‐330‐4888
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49
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Mitchell SG, de la Fuente JM. Simultaneous Synthesis of Polyoxometalates and Metal Nanoparticles from Molecular Precursors – Redox‐Active Microreactors and Functional Nanomaterials (Eur. J. Inorg. Chem. 32/2013). Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201390144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Scott G. Mitchell
- Institute of Nanoscience of Aragón (INA), University of Zaragoza, 50018 Zaragoza, Spain, http://ina.unizar.es/index.php
| | - Jesús M. de la Fuente
- Institute of Nanoscience of Aragón (INA), University of Zaragoza, 50018 Zaragoza, Spain, http://ina.unizar.es/index.php
- Fundación ARAID, 50004 Zaragoza, Spain
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50
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Mitchell SG, de la Fuente JM. Simultaneous Synthesis of Polyoxometalates and Metal Nanoparticles from Molecular Precursors – Redox‐Active Microreactors and Functional Nanomaterials. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201301330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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