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Desiderio L, Gjerde NS, Tasca E, Galantini L, Llarena I, Di Gianvincenzo P, Thongsom S, Moya SE, Giustini M. Determination of the optimal pH for doxorubicin encapsulation in polymeric micelles. J Colloid Interface Sci 2024; 664:972-979. [PMID: 38508032 DOI: 10.1016/j.jcis.2024.03.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/27/2024] [Accepted: 03/14/2024] [Indexed: 03/22/2024]
Abstract
HYPOTHESIS The anticancer drug doxorubicin hydrochloride (DX) shows a high solubility in aqueous media thanks to the positive charge in the ammonium group. This feature, however, affects the drug encapsulation in the hydrophobic domains of polymeric micelles (PMs) used for the targeted delivery of the drug. At basic pH, DX deprotonates but also acquires a negative charge in the phenolic groups of the anthracycline structure. Both the efficiency and the rate of encapsulation will be increased by choosing an appropriate pH such that the drug molecule is in neutral form. EXPERIMENTS An optimal pH for the encapsulation of the DX in PMs based on commercial poloxamers and on the diblock copolymer methoxy-poly(ethylene glycol)17-b-poly(ε-caprolactone)9 was determined by fluorescence spectroscopy, following the time evolution of both the intensity ratio of the first and the second emission bands of DX and its fluorescence lifetime, both sensitive to the environment polarity. Intracellular delivery of PMs encapsulated drug was followed by Confocal Scanning Laser Microscopy (CSLM). Cell viability was assessed with the sulforhodamine B (SRB) assay. FINDINGS By adjusting pH to 8.1 a high yield of incorporation of DX in the PMs was achieved coupled to an appreciable increase (one order of magnitude) in the drug encapsulation rate. In-vitro tests in selected cancer cell lines showed the slow release of the drug and a delay in the cytotoxic response in comparison to free DX as detected by CSLM and SRB assay. The proposed methodology paves the way for a greener, faster and more efficient encapsulation of DX in PMs.
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Affiliation(s)
- Lucrezia Desiderio
- Chemistry Department, University of Rome "La Sapienza", P.le Aldo Moro 5, 00185 Rome, Italy
| | | | - Elisamaria Tasca
- Chemistry Department, University of Rome "La Sapienza", P.le Aldo Moro 5, 00185 Rome, Italy
| | - Luciano Galantini
- Chemistry Department, University of Rome "La Sapienza", P.le Aldo Moro 5, 00185 Rome, Italy
| | - Irantzu Llarena
- CIC biomaGUNE, Paseo Miramon 182, 20011 San Sebastián, Spain
| | | | - Sunisa Thongsom
- CIC biomaGUNE, Paseo Miramon 182, 20011 San Sebastián, Spain
| | - Sergio E Moya
- CIC biomaGUNE, Paseo Miramon 182, 20011 San Sebastián, Spain.
| | - Mauro Giustini
- Chemistry Department, University of Rome "La Sapienza", P.le Aldo Moro 5, 00185 Rome, Italy; CSGI c/o Chemistry Department, University of Bari, Via Orabona 4, 70126 Bari, Italy.
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2
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Villacorta AM, Mielcarek A, Martinez MG, Jorge H, Henschke A, Coy E, Gomez-Vallejo V, Llop J, Moya SE. The In Vivo Biological Fate of Protein Corona: A Comparative PET Study of the Fate of Soft and Hard Protein Corona in Healthy Animal Models. Small 2024:e2309616. [PMID: 38564782 DOI: 10.1002/smll.202309616] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/21/2024] [Indexed: 04/04/2024]
Abstract
Radiolabeling and nuclear imaging techniques are used to investigate the biodistribution patterns of the soft and hard protein corona around poly (lactic-co-glycolic acid) nanoparticles (PLGA NPs) after administration to healthy mice. Soft and hard protein coronas of 131I-labeled BSA or 131I-labeled serum are formed on PLGA NPs functionalized with either polyehtylenimine (PEI) or bovine serum albumin (BSA). The exchangeability of hard and soft corona is assessed in vitro by gamma counting exposing PLGA NPs with corona to non-labeled BSA, serum, or simulated body fluid. PEI PLGA NPs form larger and more stable coronas than BSA PLGA NPs. Soft coronas are more exchangeable than hard ones. The in vivo fate of PEI PLGA NPs coated with preformed 18F-labeled BSA hard and soft coronas is assessed by positron emission tomography (PET) following intravenous administration. While the soft corona shows a biodistribution similar to free 18F BSA with high activity in blood and kidney, the hard corona follows patterns characteristic of nanoparticles, accumulating in the lungs, liver, and spleen. These results show that in vivo fates of soft and hard corona are different, and that soft corona is more easily exchanged with proteins from the body, while hard corona is largely retained on the nanoparticle surface.
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Affiliation(s)
- Angel Martinez Villacorta
- Radiochemistry and Nuclear Imaging Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, Donostia-San Sebastián, 20014, Spain
- Soft Matter Nanotechnology, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, Donostia-San Sebastián, 20014, Spain
| | - Angelika Mielcarek
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, Poznan, 61-614, Poland
| | - María Gómez Martinez
- Radiochemistry and Nuclear Imaging Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, Donostia-San Sebastián, 20014, Spain
- Universidad del País Vasco/Euskal Herriko Unibertsitatea, Dpto Química Orgánica II/ Facultad de Ciencia y Tecnología, Barrio Sarriena s/n, Leioa, Bizkaia, 48940, Basque
| | - Helena Jorge
- Radiochemistry and Nuclear Imaging Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, Donostia-San Sebastián, 20014, Spain
| | - Agata Henschke
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, Poznan, 61-614, Poland
| | - Emerson Coy
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, Poznan, 61-614, Poland
| | - Vanessa Gomez-Vallejo
- Radiochemistry and Nuclear Imaging Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, Donostia-San Sebastián, 20014, Spain
| | - Jordi Llop
- Radiochemistry and Nuclear Imaging Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, Donostia-San Sebastián, 20014, Spain
| | - Sergio E Moya
- Soft Matter Nanotechnology, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, Donostia-San Sebastián, 20014, Spain
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3
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Espuche B, Moya SE, Calderón M. Nanogels: Smart tools to enlarge the therapeutic window of gene therapy. Int J Pharm 2024; 653:123864. [PMID: 38309484 DOI: 10.1016/j.ijpharm.2024.123864] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 01/09/2024] [Accepted: 01/25/2024] [Indexed: 02/05/2024]
Abstract
Gene therapy can potentially treat a great number of diseases, from cancer to rare genetic disorders. Very recently, the development and emergency approval of nucleic acid-based COVID-19 vaccines confirmed its strength and versatility. However, gene therapy encounters limitations due to the lack of suitable carriers to vectorize therapeutic genetic material inside target cells. Nanogels are highly hydrated nano-size crosslinked polymeric networks that have been used in many biomedical applications, from drug delivery to tissue engineering and diagnostics. Due to their easy production, tunability, and swelling properties they have called the attention as promising vectors for gene delivery. In this review, nanogels are discussed as vectors for nucleic acid delivery aiming to enlarge gene therapy's therapeutic window. Recent works highlighting the optimization of inherent transfection efficiency and biocompatibility are reviewed here. The importance of the monomer choice, along with the internal structure, surface decoration, and responsive features are outlined for the different transfection modalities. The possible sources of toxicological endpoints in nanogels are analyzed, and the strategies to limit them are compared. Finally, perspectives are discussed to identify the remining challenges for the nanogels before their translation to the market as transfection agents.
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Affiliation(s)
- Bruno Espuche
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, 20014 Donostia-San Sebastián, Spain; POLYMAT, Applied Chemistry Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
| | - Sergio E Moya
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, 20014 Donostia-San Sebastián, Spain.
| | - Marcelo Calderón
- POLYMAT, Applied Chemistry Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain; IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain.
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4
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Ludtke T, Simó C, Gimenez Reyes S, Martinez Moro M, Salvador C, Ritacco H, Andreozzi P, Llop J, Moya SE. A study of complexation and biological fate of polyethyleneimine-siRNA polyplexes in vitro and in vivo by fluorescence correlation spectroscopy and positron emission tomography imaging. Nanoscale 2024; 16:3525-3533. [PMID: 38273800 DOI: 10.1039/d3nr04026g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
A deeper knowledge on the formation and biological fate of polymer based gene vectors is needed for their translation into therapy. Here, polyplexes of polyethyleneimine (PEI) and silencing RNA (siRNA) are formed with theoretical N/P ratios of 2, 4 and 12. Fluorescence correlation spectroscopy (FCS) is used to study the formation of polyplexes from fluorescently labelled PEI and siRNA. FCS proves the presence of free PEI. From the analysis of the autocorrelation functions it was possible to determine the actual stoichiometry of polyplexes. FCS and fluorescence cross correlation spectroscopy (FCCS) are used to follow the fate of the polyplexes intracellularly. Polyplexes disassemble after 1 day inside cells. Positron emission tomography (PET) studies are conducted with radiolabelled polyplexes prepared with siRNA or PEI labelled with 2,3,5,6-tetrafluorophenyl 6-[18F]-fluoronicotinate ([18F]F-PyTFP). PET studies in healthy mice show that [18F]siRNA/PEI and siRNA/[18F]PEI polyplexes show similar biodistribution patterns with limited circulation in the bloodstream and accumulation in the liver. Higher activity for [18F]PEI in the kidney and bladder suggests the presence of free PEI.
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Affiliation(s)
- Tanja Ludtke
- Soft Matter Nanotechnology, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, 20014, Donostia-San Sebastián, Spain.
| | - Cristina Simó
- Soft Matter Nanotechnology, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, 20014, Donostia-San Sebastián, Spain.
- Radiochemistry and Nuclear Imaging laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, 20014, Donostia-San Sebastián, Spain.
| | - Santiago Gimenez Reyes
- Soft Matter Nanotechnology, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, 20014, Donostia-San Sebastián, Spain.
- Instituto de Fisica del Sur (IFISUR-CONICET), Av. Alem, Bahia Blanca, Argentina
| | - Marta Martinez Moro
- Soft Matter Nanotechnology, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, 20014, Donostia-San Sebastián, Spain.
| | - Cristian Salvador
- CIDETEC, Basque Research and Technology Alliance (BRTA), Parque Científico y Tecnológico de Gipuzkoa, Miramon Pasealekua, 196, Donostia-San Sebastián 20014, Spain
| | - Hernan Ritacco
- Instituto de Fisica del Sur (IFISUR-CONICET), Av. Alem, Bahia Blanca, Argentina
| | - Patrizia Andreozzi
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy
| | - Jordi Llop
- Radiochemistry and Nuclear Imaging laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, 20014, Donostia-San Sebastián, Spain.
| | - Sergio E Moya
- Soft Matter Nanotechnology, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, 20014, Donostia-San Sebastián, Spain.
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5
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Regato-Herbella M, Morhenn I, Mantione D, Pascuzzi G, Gallastegui A, Caribé dos Santos Valle AB, Moya SE, Criado-Gonzalez M, Mecerreyes D. ROS-Responsive 4D Printable Acrylic Thioether-Based Hydrogels for Smart Drug Release. Chem Mater 2024; 36:1262-1272. [PMID: 38370279 PMCID: PMC10870821 DOI: 10.1021/acs.chemmater.3c02264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 11/30/2023] [Accepted: 12/01/2023] [Indexed: 02/20/2024]
Abstract
Reactive oxygen species (ROS) play a key role in several biological functions like regulating cell survival and signaling; however, their effect can range from beneficial to nondesirable oxidative stress when they are overproduced causing inflammation or cancer diseases. Thus, the design of tailor-made ROS-responsive polymers offers the possibility of engineering hydrogels for target therapies. In this work, we developed thioether-based ROS-responsive difunctional monomers from ethylene glycol/thioether acrylate (EGnSA) with different lengths of the EGn chain (n = 1, 2, 3) by the thiol-Michael addition click reaction. The presence of acrylate groups allowed their photopolymerization by UV light, while the thioether groups conferred ROS-responsive properties. As a result, smart PEGnSA hydrogels were obtained, which could be processed by four-dimensional (4D) printing. The mechanical properties of the hydrogels were determined by rheology, pointing out a decrease of the elastic modulus (G') with the length of the EG segment. To enhance the stability of the hydrogels after swelling, the EGnSA monomers were copolymerized with a polar monomer, 2-hydroxyethyl acrylate (HEA), leading to P[(EGnSA)x-co-HEAy] with improved compatibility in aqueous media, making it a less brittle material. Swelling properties of the hydrogels increased in the presence of hydrogen peroxide, a kind of ROS, reaching values of ≈130% for P[(EG3SA)7-co-HEA93] which confirms the stimuli-responsive properties. Then, the P[(EG3SA)x-co-HEAy] hydrogels were employed as matrixes for the encapsulation of a chemotherapeutic drug, 5-fluorouracil (5FU), which showed sustained release over time modulated by the presence of H2O2. Finally, the effect of the 5-FU release from P[(EG3SA)x-co-HEAy] hydrogels was tested in vitro with melanoma cancer cells B16F10, pointing out B16F10 growth inhibition values in the range of 40-60% modulated by the EG3SA percentage and the presence or absence of ROS agents, thus confirming their excellent ROS-responsive properties for the treatment of localized pathologies.
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Affiliation(s)
- Maria Regato-Herbella
- POLYMAT
University of the Basque Country UPV/EHU, Joxe Mari Korta Center. Avda. Tolosa 72, 20018 Donostia-San Sebastián, Spain
- Center
for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, 20014Donostia-San Sebastián, Spain
| | - Isabel Morhenn
- POLYMAT
University of the Basque Country UPV/EHU, Joxe Mari Korta Center. Avda. Tolosa 72, 20018 Donostia-San Sebastián, Spain
| | - Daniele Mantione
- POLYMAT
University of the Basque Country UPV/EHU, Joxe Mari Korta Center. Avda. Tolosa 72, 20018 Donostia-San Sebastián, Spain
- Ikerbasque,
Basque Foundation for Science, 48013 Bilbao, Spain
| | - Giuseppe Pascuzzi
- Department
of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano ,Italy
| | - Antonela Gallastegui
- POLYMAT
University of the Basque Country UPV/EHU, Joxe Mari Korta Center. Avda. Tolosa 72, 20018 Donostia-San Sebastián, Spain
| | - Ana Beatriz Caribé dos Santos Valle
- Center
for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, 20014Donostia-San Sebastián, Spain
| | - Sergio E. Moya
- Center
for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, 20014Donostia-San Sebastián, Spain
| | - Miryam Criado-Gonzalez
- POLYMAT
University of the Basque Country UPV/EHU, Joxe Mari Korta Center. Avda. Tolosa 72, 20018 Donostia-San Sebastián, Spain
| | - David Mecerreyes
- POLYMAT
University of the Basque Country UPV/EHU, Joxe Mari Korta Center. Avda. Tolosa 72, 20018 Donostia-San Sebastián, Spain
- Ikerbasque,
Basque Foundation for Science, 48013 Bilbao, Spain
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Gutiérrez-Pineda E, Subrati A, Rodríguez-Presa MJ, Gervasi CA, Moya SE. Electrochemical Exfoliation of Graphene Oxide: Unveiling Structural Properties and Electrochemical Performance. Chemistry 2023; 29:e202302450. [PMID: 37671633 DOI: 10.1002/chem.202302450] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 08/31/2023] [Accepted: 09/05/2023] [Indexed: 09/07/2023]
Abstract
An electrochemical exfoliation method for the production of graphene oxide and its characterization by electrochemical techniques are presented here. Graphite rods are used as working electrode in a three-electrode electrochemical cell, and electro-exfoliation is achieved by applying anodic polarization in a sulfuric acid solution. The electrochemical process involved two steps characterized by an intercalation at lower potential and an exfoliation at higher potential. The electrochemical behavior of the produced GO is studied through cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). X ray Photoelectronic Spectroscopy (XPS), Raman spectroscopy, Transmission Electron Microscopy (TEM), and Atomic Force Microscopy (AFM) are employed to characterize the structural and chemical properties of the exfoliated GO. The results demonstrate that the electrochemical exfoliation method yields GO materials with varying degrees of oxidation, defect density, and crystallite size, depending on the applied potential and acid concentration. The graphene oxide samples exhibited distinct electrochemical properties, including charge transfer resistance, interfacial capacitance, and relaxation times for the charge transfer, as revealed by CV and EIS measurements with a specifically selected redox probe. The comprehensive characterization performed provides valuable insights into the structure-property relationships of the GO materials synthesized through electrochemical exfoliation of graphite.
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Affiliation(s)
- Eduart Gutiérrez-Pineda
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramon 182 C, 2009, San Sebastián, Guipúzcoa, Spain
- Escuela de Ciencias Básicas, Tecnología e Ingeniería (ECBTI), Universidad Nacional Abierta y a Distancia (UNAD), 680001, Bucaramanga, Santander, Colombia
| | - Ahmed Subrati
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramon 182 C, 2009, San Sebastián, Guipúzcoa, Spain
| | - María José Rodríguez-Presa
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Universidad Nacional de La Plata - CONICET, Sucursal 4 Casilla de Correo 16, 1900, La Plata, Argentina
| | - Claudio A Gervasi
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Universidad Nacional de La Plata - CONICET, Sucursal 4 Casilla de Correo 16, 1900, La Plata, Argentina
| | - Sergio E Moya
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramon 182 C, 2009, San Sebastián, Guipúzcoa, Spain
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Simo C, Salvador C, Andreozzi P, Gomez-Vallejo V, Romero G, Dupin D, Llop J, Moya SE. Positron Emission Tomography Studies of the Biodistribution, Translocation, and Fate of Poly Allyl Amine-Based Carriers for Sirna Delivery by Systemic and Intratumoral Administration. Small 2023; 19:e2304326. [PMID: 37537708 DOI: 10.1002/smll.202304326] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/05/2023] [Indexed: 08/05/2023]
Abstract
Polyamine-based vectors offer many advantages for gene therapy, but they are hampered by a limited knowledge on their biological fate and efficacy for nucleic acid delivery. The 18 F radiolabeled siRNA is complexed with poly(allyl amine) hydrochloride (PAH), PEGylated PAH (PAHPEG ), or oleic acid-modified PAH (PAHOleic ) to form polyplexes, and injected them intravenously into healthy rodents. The biodistribution patterns obtained by positron emission tomography (PET) imaging vary according to the polymer used for complexation. Free siRNA is quickly eliminated through the bladder. PAH and oleic acid modify PAH polyplexes accumulate in the lungs and liver. No elimination through the bladder is observed for PAH and PAHOleic within 2 h after administration. PAHPEG polyplexes accumulate in kidneys and are eliminated through the bladder. Polyplexes prepared with 18 F-labeled oleic acid-modified PAH and non-labeled siRNA show similar biodistribution to those prepared with labeled siRNA, but with more accumulation in the lungs due to the presence of non-complexed polymer. Intravenous administration of PAHOleic polyplexes in tumor models results in a limited availability of siRNA. When PAHOleic polyplexes are administered intratumorally in tumor bearing rodents, ≈40% of the radioactivity is retained in the tumor after 180 min while free siRNA is completely eliminated.
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Affiliation(s)
- Cristina Simo
- Radiochemistry and Nuclear Imaging laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, Donostia-San Sebastián, 20014, Spain
- Soft Matter Nanotechnology, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, Donostia-San Sebastián, 20014, Spain
- Department of Radiology, Washington University School of Medicine in St. Louis, St. Louis, MO, 63110, USA
| | - Cristian Salvador
- Soft Matter Nanotechnology, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, Donostia-San Sebastián, 20014, Spain
- CIDETEC, Basque Research and Technology Alliance (BRTA), Parque Científico y Tecnológico de Gipuzkoa, Miramon Pasealekua, 196, Donostia-San Sebastián, 20014, Spain
| | - Patrizia Andreozzi
- Consorzio Sistemi a Grande Interfase, Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3, FI, Sesto Fiorentino, 50019, Italy
| | - Vanessa Gomez-Vallejo
- Radiochemistry and Nuclear Imaging laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, Donostia-San Sebastián, 20014, Spain
| | - Gabriela Romero
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, San Antonio, TX, 78249, USA
| | - Damien Dupin
- CIDETEC, Basque Research and Technology Alliance (BRTA), Parque Científico y Tecnológico de Gipuzkoa, Miramon Pasealekua, 196, Donostia-San Sebastián, 20014, Spain
| | - Jordi Llop
- Radiochemistry and Nuclear Imaging laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, Donostia-San Sebastián, 20014, Spain
| | - Sergio E Moya
- Soft Matter Nanotechnology, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, Donostia-San Sebastián, 20014, Spain
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8
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Chotechuang N, Di Gianvincenzo P, Chen CG, Nardi AN, Padró D, Boonla C, Ortore MG, D' Abramo M, Moya SE. A study of cyanidin/alginate complexation: Influence of pH in assembly and chiral properties. Carbohydr Polym 2023; 315:120957. [PMID: 37230610 DOI: 10.1016/j.carbpol.2023.120957] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/19/2023] [Accepted: 04/23/2023] [Indexed: 05/27/2023]
Abstract
Cyanidin 3-O-glucoside (CND) is a frequently-used anthocyanin that has excellent antioxidant properties but a limited bioavailability in bloodstream. Complexation of CND with alginate can improve its therapeutic outcome. Here we have studied the complexation of CND with alginate under a range of pH values from 2.5 to 5. CND is positively charged at low pH, and becomes neutral, and then negatively charged as pH increases. CND/alginate complexation was studied by dynamic light scattering, transmission electron microscopy, small angle X-ray scattering, STEM, UV-Vis spectroscopy and circular dichroism (CD). CND/alginate complexes at pH 4.0 and 5.0 form chiral fibres with a fractal structure. At these pH values, CD spectra show very intense bands, which are inverted compared with free CND. Complexation at lower pH results in disordered polymer structures and CD spectra show the same features as for CND in solution. Molecular dynamics simulations suggest the formation of parallel CND dimers through complexation with alginate at pH 3.0, while at pH 4.0 CND dimers form in a cross like arrangement.
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Affiliation(s)
- Nattida Chotechuang
- Department of Food Technology, Faculty of Science, Chulalongkorn University, 10330 Bangkok, Thailand; Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramon 182 C, 20014 Donostia-San Sebastian, Spain
| | - Paolo Di Gianvincenzo
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramon 182 C, 20014 Donostia-San Sebastian, Spain
| | - Cheng Giuseppe Chen
- Chemistry Department, "La Sapienza" University of Rome, P. le A. Moro 5, 00185 Rome, Italy
| | | | - Daniel Padró
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramon 182 C, 20014 Donostia-San Sebastian, Spain
| | - Chanchai Boonla
- Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, 10330 Bangkok, Thailand
| | - Maria Grazia Ortore
- Department of Life and Environmental Sciences, Marche Polytechnic University, Via Brecce Bianche, I-60130 Ancona, Italy
| | - Marco D' Abramo
- Chemistry Department, "La Sapienza" University of Rome, P. le A. Moro 5, 00185 Rome, Italy
| | - Sergio E Moya
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramon 182 C, 20014 Donostia-San Sebastian, Spain.
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9
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Perez Schmidt P, Luedtke T, Moretti P, Di Gianvincenzo P, Fernandez Leyes M, Espuche B, Amenitsch H, Wang G, Ritacco H, Polito L, Ortore MG, Moya SE. Assembly and recognition mechanisms of glycosylated PEGylated polyallylamine phosphate nanoparticles: A fluorescence correlation spectroscopy and small angle X-ray scattering study. J Colloid Interface Sci 2023; 645:448-457. [PMID: 37156153 DOI: 10.1016/j.jcis.2023.04.136] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/18/2023] [Accepted: 04/25/2023] [Indexed: 05/10/2023]
Abstract
HYPOTHESIS Modification of polyallylamine hydrochloride (PAH) with heterobifunctional low molecular weight polyethylene glycol (PEG) (600 and 1395 Da), and subsequent attachment of mannose, glucose, or lactose sugars to PEG, can lead to formation of polyamine phosphate nanoparticles (PANs) with lectin binding affinity and narrow size distribution. EXPERIMENTS Size, polydispersity, and internal structure of glycosylated PEGylated PANs were characterized by transmission electron microscopy (TEM), dynamic light scattering (DLS) and small angle X-ray scattering (SAXS). Fluorescence correlation spectroscopy (FCS) was used to study the association of labelled glycol-PEGylated PANs. The number of polymer chains forming the nanoparticles was determined from the changes in amplitude of the cross-correlation function of the polymers after formation of the nanoparticles. SAXS and fluorescence cross-correlation spectroscopy were used to investigate the interaction of PANs with lectins: concanavalin A with mannose modified PANs, and jacalin with lactose modified ones. FINDINGS Glyco-PEGylated PANs are highly monodispersed, with diameters of a few tens of nanometers and low charge, and a structure corresponding to spheres with Gaussian chains. FCS shows that the PANs are single chain nanoparticles or formed by two polymer chains. Concanavalin A and jacalin show specific interactions for the glyco-PEGylated PANs with higher affinity than bovine serum albumin.
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Affiliation(s)
- Patricia Perez Schmidt
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 Donostia-San Sebastián, Guipúzcoa, Spain; CNR - ISTM, Nanotechnology Lab., Via G. Fantoli 16/15, Milan, Italy
| | - Tanja Luedtke
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 Donostia-San Sebastián, Guipúzcoa, Spain
| | - Paolo Moretti
- Department of Life and Environmental Science, Marche Polytechnic University, via Brecce bianche, I-60131 Ancona, Italy
| | - Paolo Di Gianvincenzo
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 Donostia-San Sebastián, Guipúzcoa, Spain
| | - Marcos Fernandez Leyes
- IFISUR Instituto de Física del Sur (IFISUR-CONICET), Av. Alem 1253, Bahía Blanca 8000, Argentina
| | - Bruno Espuche
- POLYMAT, Applied Chemistry Department, Faculty of Chemistry, University of the Basque Country, UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Guipúzcoa, Spain
| | - Heinz Amenitsch
- Institute of Inorganic Chemistry, Graz University of Technology, Austria
| | - Guocheng Wang
- Research Center for Human Tissues and Organs Degeneration Shenzhen Institute of Advanced Technology Chinese Academy of Science Shenzhen, Guangdong 518055, China
| | - Hernan Ritacco
- IFISUR Instituto de Física del Sur (IFISUR-CONICET), Av. Alem 1253, Bahía Blanca 8000, Argentina
| | - Laura Polito
- CNR - ISTM, Nanotechnology Lab., Via G. Fantoli 16/15, Milan, Italy
| | - M Grazia Ortore
- Department of Life and Environmental Science, Marche Polytechnic University, via Brecce bianche, I-60131 Ancona, Italy.
| | - S E Moya
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 Donostia-San Sebastián, Guipúzcoa, Spain.
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10
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Rodgers TM, Muzzio N, Valero A, Ahmad I, Lüdtke TU, Moya SE, Romero G. Poly (β-amino Ester) Nanoparticles Modified with a Rabies Virus-derived peptide for the Delivery of ASCL1 Across a 3D In Vitro Model of the Blood Brain Barrier. ACS Appl Nano Mater 2023; 6:6299-6311. [PMID: 37274933 PMCID: PMC10234607 DOI: 10.1021/acsanm.3c00651] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Gene editing has emerged as a therapeutic approach to manipulate the genome for killing cancer cells, protecting healthy tissues, and improving immune response to a tumor. The gene editing tool achaete-scute family bHLH transcription factor 1 CRISPR guide RNA (ASCL1-gRNA) is known to restore neuronal lineage potential, promote terminal differentiation, and attenuate tumorigenicity in glioblastoma tumors. Here, we fabricated a polymeric nonviral carrier to encapsulate ASCL1-gRNA by electrostatic interactions and deliver it into glioblastoma cells across a 3D in vitro model of the blood-brain barrier (BBB). To mimic rabies virus (RV) neurotropism, gene-loaded poly (β-amino ester) nanoparticles are surface functionalized with a peptide derivative of rabies virus glycoprotein (RVG29). The capability of the obtained NPs, hereinafter referred to as RV-like NPs, to travel across the BBB, internalize into glioblastoma cells and deliver ASCL1-gRNA are investigated in a 3D BBB in vitro model through flow cytometry and CLSM microscopy. The formation of nicotinic acetylcholine receptors in the 3D BBB in vitro model is confirmed by immunochemistry. These receptors are known to bind to RVG29. Unlike Lipofectamine that primarily internalizes and transfects endothelial cells, RV-like NPs are capable to travel across the BBB, preferentially internalize glioblastoma cells and deliver ASCL1-gRNA at an efficiency of 10 % causing non-cytotoxic effects.
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Affiliation(s)
- Tina M Rodgers
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, San Antonio, Texas, 78249, USA
| | - Nicolas Muzzio
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, San Antonio, Texas, 78249, USA
| | - Andrea Valero
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, San Antonio, Texas, 78249, USA
| | - Ikram Ahmad
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, San Antonio, Texas, 78249, USA
| | - Tanja Ursula Lüdtke
- Soft Matter Nanotechnology, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramon 182, Donostia/San Sebastian, Gipuzkoa, 20014 Spain
| | - Sergio E Moya
- Soft Matter Nanotechnology, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramon 182, Donostia/San Sebastian, Gipuzkoa, 20014 Spain
| | - Gabriela Romero
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, San Antonio, Texas, 78249, USA
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11
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Salvador C, Andreozzi P, Romero G, Loinaz I, Dupin D, Moya SE. Self-Assembled Oleic Acid-Modified Polyallylamines for Improved siRNA Transfection Efficiency and Lower Cytotoxicity. ACS Appl Bio Mater 2023; 6:529-542. [PMID: 36647574 PMCID: PMC9945087 DOI: 10.1021/acsabm.2c00845] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Small interference RNA (siRNA) is a tool for gene modulation, which can silence any gene involved in genetic disorders. The potential of this therapeutic tool is hampered by RNA instability in the blood stream and difficulties to reach the cytosol. Polyamine-based nanoparticles play an important role in gene delivery. Polyallylamine hydrochloride (PAH) is a polycation displaying primary amines that can be easily chemically modified to match the balance between cell viability and siRNA transfection. In this work, PAH has been covalently functionalized with oleic acid at different molar ratios by carbodiimide chemistry. The substituted polymers form polyplexes that keep positive surface charge and fully encapsulate siRNA. Oleic acid substitution improves cell viability in the pulmonary cell line A549. Moreover, 6 and 14% of oleic acid substitution show an improvement in siRNA transfection efficiency. CD47 is a ubiquitous protein which acts as "don't eat me signal." SIRPα protein of macrophages recognizes CD47, leading to tumor cell phagocytosis by macrophages. By knocking down CD47 with siRNA, cancer cells become vulnerable to be eliminated by the immune system. PAH-oleic acid substitutes show high efficacy in silencing the CD47 protein, making them a potential candidate for immunotherapy.
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Affiliation(s)
- Cristian Salvador
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián20014, Spain,CIDETEC,
Basque Research and Technology Alliance (BRTA), Parque Científico
y Tecnológico de Gipuzkoa, Miramon Pasealekua, 196, Donostia-San Sebastián20014, Spain
| | - Patrizia Andreozzi
- Consorzio
Sistemi a Grande Interfase, Department of Chemistry ‘Ugo Schiff’, University of Florence, Via della Lastruccia 3, Sesto Fiorentino50019, Florence, Italy
| | - Gabriela Romero
- Department
of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, San Antonio78249, Texas, United States
| | - Iraida Loinaz
- CIDETEC,
Basque Research and Technology Alliance (BRTA), Parque Científico
y Tecnológico de Gipuzkoa, Miramon Pasealekua, 196, Donostia-San Sebastián20014, Spain
| | - Damien Dupin
- CIDETEC,
Basque Research and Technology Alliance (BRTA), Parque Científico
y Tecnológico de Gipuzkoa, Miramon Pasealekua, 196, Donostia-San Sebastián20014, Spain,. Phone: +34 943 30 90 22
| | - Sergio E. Moya
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián20014, Spain,. Phone: +34 943 00 53 11
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12
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Perrigue PM, Henschke A, Grześkowiak BF, Przysiecka Ł, Jaskot K, Mielcarek A, Coy E, Moya SE. Cellular uptake and retention studies of silica nanoparticles utilizing senescent fibroblasts. Sci Rep 2023; 13:475. [PMID: 36627308 PMCID: PMC9832065 DOI: 10.1038/s41598-022-26979-1] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 12/22/2022] [Indexed: 01/12/2023] Open
Abstract
Understanding the interplay between nanoparticles (NPs) and cells is essential to designing more efficient nanomedicines. Previous research has shown the role of the cell cycle having impact on the efficiency of cellular uptake and accumulation of NPs. However, there is a limited investigation into the biological fate of NPs in cells that are permanently withdrawn from the cell cycle. Here we utilize senescent WI-38 fibroblasts, which do not divide and provide a definitive model for tracking the biological fate of silica nanoparticles (SiNPs) independent of cell cycle. We use several methods to measure the cellular uptake kinetics and intracellular retention of SiNPs, including confocal laser scanning microscopy (CLSM), flow cytometry, and transmission electron microscopy (TEM). We demonstrate that SiNPs readily enter into senescent cells. Once internalized, SiNPs do not exit and accumulate in the cytoplasm for long term. Our study provides a basis for future development of NP-based tools that can detect and target senescent cells for therapy.
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Affiliation(s)
- Patrick M. Perrigue
- grid.5633.30000 0001 2097 3545NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Agata Henschke
- grid.5633.30000 0001 2097 3545NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Bartosz F. Grześkowiak
- grid.5633.30000 0001 2097 3545NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Łucja Przysiecka
- grid.5633.30000 0001 2097 3545NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Kaja Jaskot
- grid.5633.30000 0001 2097 3545NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Angelika Mielcarek
- grid.5633.30000 0001 2097 3545NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Emerson Coy
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614, Poznan, Poland.
| | - Sergio E. Moya
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 182, 20014 Donostia San Sebastián, Spain
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13
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Ramírez MDLÁ, Bindini E, Moretti P, Soler Illia GJAA, Amenitsch H, Andreozzi P, Ortore MG, Moya SE. Impact of PEGylation on the degradation and pore organization in mesoporous silica nanoparticles: A study of the inner mesoporous structure in physiologically relevant ionic conditions. Colloids Surf B Biointerfaces 2022; 219:112797. [PMID: 36063718 DOI: 10.1016/j.colsurfb.2022.112797] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 08/07/2022] [Accepted: 08/21/2022] [Indexed: 10/31/2022]
Abstract
The degradation of mesoporous silica nanoparticles (MSNs) in the biological milieu due to silica hydrolysis plays a fundamental role for the delivery of encapsulated drugs and therapeutics. However, little is known on the evolution of the pore arrangement in the MSNs in biologically relevant conditions. Small Angle X-ray scattering (SAXS) studies were performed on unmodified and PEGylated MSNs with a MCM-48 pore structure and average sizes of 140 nm, exposed to simulated body fluid solution (SBF) at pH 7.4 for different time intervals from 30 min to 24 h. Experiments were performed with silica concentrations below, at and over 0.14 mg/mL, the saturation concentration of silica in water at physiological temperature. At silica concentrations of 1 mg/mL (oversaturation), unmodified MSNs show variation in interpore distances over 6 h exposure to SBF, remaining constant thereafter. A decrease in radius of gyration is observed over the same time. Mesoporosity and radius of gyration of unmodified MSNs remain then unchanged up to 24 h. PEGylated MSNs at 1 mg/mL concentration show a broader diffraction peak but no change in the position of the peak is observed following 24 h exposure to SBF. PEGylated MSNs at 0.01 mg/mL show no diffraction peaks already after 30 min exposure to SBF, while at 0.14 mg/mL a small diffraction peak is present after 30 min exposure but disappears after 1 h.
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Affiliation(s)
- María de Los Ángeles Ramírez
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain; Instituto de Nanosistemas, UNSAM, CONICET, Avenida 25 de Mayo 1021, San Martín, 1650 Buenos Aires, Argentina
| | - Elisa Bindini
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain
| | - Paolo Moretti
- Department of Life and Environmental Science, Marche Polytechnic University, via Brecce bianche, I-60131 Ancona, Italy
| | - Galo J A A Soler Illia
- Instituto de Nanosistemas, UNSAM, CONICET, Avenida 25 de Mayo 1021, San Martín, 1650 Buenos Aires, Argentina.
| | - Heinz Amenitsch
- Institute of Inorganic Chemistry, Graz University of Technology, Austria
| | - Patrizia Andreozzi
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain; Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3/13, Sesto Fiorentino, Florence 50019, Italy.
| | - Maria Grazia Ortore
- Department of Life and Environmental Science, Marche Polytechnic University, via Brecce bianche, I-60131 Ancona, Italy.
| | - Sergio E Moya
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain.
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14
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Hoff SE, Di Silvio D, Ziolo RF, Moya SE, Heinz H. Patterning of Self-Assembled Monolayers of Amphiphilic Multisegment Ligands on Nanoparticles and Design Parameters for Protein Interactions. ACS Nano 2022; 16:8766-8783. [PMID: 35603431 DOI: 10.1021/acsnano.1c08695] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Functionalization of nanoparticles with specific ligands is helpful to control specific diagnostic and therapeutic responses such as protein adsorption, cell targeting, and circulation. Precision delivery critically depends on a fundamental understanding of the interplay between surface chemistry, ligand dynamics, and interaction with the biochemical environment. Due to limited atomic-scale insights into the structure and dynamics of nanoparticle-bound ligands from experiments, relationships of grafting density and ligand chemistry to observable properties such as hydrophilicity and protein interactions remain largely unknown. In this work, we uncover how self-assembled monolayers (SAMs) composed of multisegment ligands such as thioalkyl-PEG-(N-alkyl)amides on gold nanoparticles can mimic mixed hydrophobic and hydrophilic ligand coatings, including control of patterns, hydrophilicity, and specific recognition properties. Our results are derived from molecular dynamics simulations with the INTERFACE-CHARMM36 force field at picometer resolution and comparisons to experiments. Small changes in ligand hydrophobicity, via adjusting the length of the N-terminal alkyl groups, tune water penetration by multiples and control superficial ordering of alkyl chains from 0 to 70% regularity. Further parameters include the grafting density of the ligands, curvature of the nanoparticle surfaces, type of solvent, and overall ligand length, which were examined in detail. We explain the thermodynamic origin of the formation of heterogeneous patterns of multisegment ligand SAMs and illustrate how different degrees of ligand order on the nanoparticle surface affect interactions with bovine serum albumin. The resulting design principles can be applied to a variety of ligand chemistries to customize the behavior of functionalized nanoparticles in biological media and enhance therapeutic efficiency.
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Affiliation(s)
- Samuel E Hoff
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303-0596, United States
| | - Desiré Di Silvio
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramon, 182, 20009 San Sebastian, Spain
| | - Ronald F Ziolo
- Centro de Investigación en Química Aplicada, Boulevard Enrique Reyna 140, 25294 Saltillo, Coahuila, México
| | - Sergio E Moya
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramon, 182, 20009 San Sebastian, Spain
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Hendrik Heinz
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303-0596, United States
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15
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Ramírez MDLÁ, Martínez-Villacorta ÁM, Gómez-Vallejo V, Andreozzi P, Soler-Illia G, Llop J, Moya SE. Core vs. surface labelling of mesoporous silica nanoparticles: advancing the understanding of nanoparticle fate and design of labelling strategies. Nanoscale Adv 2022; 4:2098-2106. [PMID: 36133445 PMCID: PMC9417343 DOI: 10.1039/d1na00719j] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 02/28/2022] [Indexed: 05/14/2023]
Abstract
Despite great interest in the use of silica mesoporous nanoparticles (MSNs) in drug delivery little is known on their biological fate. Positron emission tomography (PET) studies of radiolabelled MSNs face a major difficulty due to the degradation of the MSNs during circulation as it is difficult to assign activity values to either the MSNs or their degradation products. Here, a PET study is conducted using two strategies of labelling. MSNs are either radiolabelled in the core by complexation with silanols from the MSNs with 89Zr, or on the MSN coating through attachment of 131I radiolabelled Lin-TT1 (AKRGARSTA), a homing peptide for targeting cancer tissue. Results from the biodistribution of MSNs with the two labels are compared, obtaining meanful information on the fate of MSNs. While MSNs accumulate in liver and spleen, MSN degradation products 89Zr or silicate bearing the radioisotope, are found in the bones and probably in lungs. A partial detachment of the peptide from the surface of the MSN is also observed. This work highlights the importance of choosing an appropriate labelling strategy for nanoparticles since core or surface labelling may result in different particle biodistribution if the labelled component degrades or the label detaches.
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Affiliation(s)
- María de Los Ángeles Ramírez
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA) Paseo Miramón 194 20014 San Sebastián Guipúzcoa Spain
- Instituto de Nanosistemas, UNSAM, CONICET Avenida 25 de Mayo 1021 1650 San Martín Buenos Aires Argentina
| | - Ángel Manuel Martínez-Villacorta
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA) Paseo Miramón 194 20014 San Sebastián Guipúzcoa Spain
- Radiochemistry and Nuclear Imaging Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA) Paseo Miramón 194 20014 San Sebastián Guipúzcoa Spain
| | - Vanessa Gómez-Vallejo
- Radiochemistry and Nuclear Imaging Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA) Paseo Miramón 194 20014 San Sebastián Guipúzcoa Spain
| | - Patricia Andreozzi
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA) Paseo Miramón 194 20014 San Sebastián Guipúzcoa Spain
| | - Galo Soler-Illia
- Instituto de Nanosistemas, UNSAM, CONICET Avenida 25 de Mayo 1021 1650 San Martín Buenos Aires Argentina
| | - Jordi Llop
- Radiochemistry and Nuclear Imaging Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA) Paseo Miramón 194 20014 San Sebastián Guipúzcoa Spain
| | - S E Moya
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA) Paseo Miramón 194 20014 San Sebastián Guipúzcoa Spain
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16
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Penelas MJ, Arenas GF, Trabadelo F, Soler-Illia GJAA, Moya SE, Angelomé PC, Hoppe CE. Importance of the Structural and Physicochemical Properties of Silica Nanoshells in the Photothermal Effect of Silica-Coated Au Nanoparticles Suspensions. Langmuir 2022; 38:3876-3886. [PMID: 35302776 DOI: 10.1021/acs.langmuir.2c00127] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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
In this work, monodisperse silica-coated gold nanoparticles (NPs) were synthesized and used for obtaining aqueous colloidal dispersions with an optimum relationship between colloidal stability and photothermal activity. The idea behind this design was to produce systems with the advantages of the presence of a silica shell (biocompatibility, potential for surface modification, and protecting effect) with a minimal loss of optical and thermal properties. With this aim, the photothermal properties of NPs with silica shells of different thicknesses were analyzed under conditions of high radiation extinction. By using amorphous, gel-like silica coatings, thicknesses higher than 40 nm could be obtained without an important loss of the light absorption capacity of the colloids and with a significant photothermal response even at low NP concentrations. The effects produced by changes in the solvent and in the NP concentration were also analyzed. The results show that the characteristics of the shell control both, the photothermal effect and the optical properties of the colloidal dispersions. As the presence of a silica shell strongly enhances the possibilities of adding cargo molecules or probes, these colloids can be considered of high interest for biomedical therapies, sensing applications, remote actuation, and other technological applications.
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Affiliation(s)
- M Jazmín Penelas
- División Polímeros Nanoestructurados, Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), UNMdP-CONICET y Departamento de Química, UNMdP, Av. Cristóbal Colón 10850, B7606BWV Mar del Plata, Buenos Aires, Argentina
- Instituto de Nanosistemas, Universidad Nacional de San Martín, Av. 25 de Mayo 1021, San Martín, B1650 Buenos Aires, Argentina
| | - Gustavo F Arenas
- Laboratorio LASER, ICYTE, UNMdP-CONICET, Av. J. B. Justo 4302, B7608FDQ Mar del Plata, Buenos Aires, Argentina
| | - Fernando Trabadelo
- Laboratorio de Electrónica, Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), UNMdP-CONICET,Av. Cristóbal Colón 10850, B7606BWV, Mar del Plata, Buenos Aires, Argentina
| | - Galo J A A Soler-Illia
- Instituto de Nanosistemas, Universidad Nacional de San Martín, Av. 25 de Mayo 1021, San Martín, B1650 Buenos Aires, Argentina
| | - Sergio E Moya
- CIC biomaGUNE, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
| | - Paula C Angelomé
- Gerencia Química & INN, CAC, CNEA-CONICET, Av. General Paz 1499, 1650, San Martín, Buenos Aires, Argentina
| | - Cristina E Hoppe
- División Polímeros Nanoestructurados, Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), UNMdP-CONICET y Departamento de Química, UNMdP, Av. Cristóbal Colón 10850, B7606BWV Mar del Plata, Buenos Aires, Argentina
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17
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Gjerde NS, Nardi AN, Chen CG, Di Gianvincenzo P, D’Abramo M, Scipioni A, Galantini L, Moya SE, Giustini M. Complexation and organization of doxorubicin on polystyrene sulfonate chains: impacts on doxorubicin dimerization and quenching. Phys Chem Chem Phys 2022; 24:25990-25998. [DOI: 10.1039/d2cp02714c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The doxorubicin hydrochloride (DX) interaction with polystyrene sulfonate leads to fluorescence quenching due to dimer formation.
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Affiliation(s)
- Natalie Solfrid Gjerde
- Chemistry Department, “La Sapienza” University of Rome, P. le A. Moro 5, Roma, 00185, Italy
| | | | - Cheng Giuseppe Chen
- Chemistry Department, “La Sapienza” University of Rome, P. le A. Moro 5, Roma, 00185, Italy
| | - Paolo Di Gianvincenzo
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramon 182 C, 20014 Donostia-San Sebastian, Spain
| | - Marco D’Abramo
- Chemistry Department, “La Sapienza” University of Rome, P. le A. Moro 5, Roma, 00185, Italy
| | - Anita Scipioni
- Chemistry Department, “La Sapienza” University of Rome, P. le A. Moro 5, Roma, 00185, Italy
| | - Luciano Galantini
- Chemistry Department, “La Sapienza” University of Rome, P. le A. Moro 5, Roma, 00185, Italy
| | - Sergio E. Moya
- Chemistry Department, “La Sapienza” University of Rome, P. le A. Moro 5, Roma, 00185, Italy
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramon 182 C, 20014 Donostia-San Sebastian, Spain
| | - Mauro Giustini
- Chemistry Department, “La Sapienza” University of Rome, P. le A. Moro 5, Roma, 00185, Italy
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Sahli C, Moya SE, Lomas JS, Gravier-Pelletier C, Briandet R, Hémadi M. Recent advances in nanotechnology for eradicating bacterial biofilm. Theranostics 2022; 12:2383-2405. [PMID: 35265216 PMCID: PMC8899562 DOI: 10.7150/thno.67296] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 12/01/2021] [Indexed: 11/28/2022] Open
Abstract
Microorganisms grouped together into spatially-organized communities called biofilms, are the cause of dramatic chronic infections in plants, animals and humans. In this review, the characteristics of biofilms and their interactions with antimicrobials are first described. Limitations of antibiotic treatments are discussed, and state-of-the-art alternative approaches based on the use of polymer, lipid, organic, inorganic and hybrid nanoparticles are presented, highlighting recent achievements in the application of nanomaterials to the field of theranostics for the eradication of biofilm. The aim of this review is to present a complete vision of nanobiotechnology-based approaches for eradicating bacterial biofilms and fighting antimicrobial tolerance.
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Bindini E, Lüdtke T, Otaegui D, Möller M, Haddad R, Boissière C, Moya SE. Mind the gap! tailoring sol–gel ceramic mesoporous coatings on labile metal–organic frameworks through kinetic control. Inorg Chem Front 2022. [DOI: 10.1039/d1qi01128f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Kinetic control allows for the synthesis of mesoporous silica shells on top of labile ZIF-8 cores without compromising MOF stability.
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Affiliation(s)
- Elisa Bindini
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain
| | - Tanja Lüdtke
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain
| | - Dorleta Otaegui
- Mass spectrometry platform, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain
| | - Marco Möller
- Electron microscopy platform, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain
| | - Ryma Haddad
- 4 Laboratoire de Chimie de la Matière Condensée de Paris, Sorbonne University, Place Jussieu 4, 75005 Paris, France
| | - Cédric Boissière
- 4 Laboratoire de Chimie de la Matière Condensée de Paris, Sorbonne University, Place Jussieu 4, 75005 Paris, France
| | - Sergio E. Moya
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain
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20
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Vardanyan I, Arakelyan V, Navoyan Z, Diamanti E, Moya SE, Donath E. A study of the subdiffusion of small molecules in charged polyelectrolyte multilayers. Sci Rep 2021; 11:22585. [PMID: 34799621 PMCID: PMC8604972 DOI: 10.1038/s41598-021-01935-7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 10/25/2021] [Indexed: 11/28/2022] Open
Abstract
A theoretical approach has been developed here to describe the slow diffusion of small charged molecules of sodium dithionite (S2O42−) in polyelectrolyte multilayers (PEMs) composed of polyallylamine hydrochloride (PAH) and polystyrene sulfonate (PSS), which is demonstrated here to be a case of subdifussion. Diffusion is measured experimentally by recording the quenching of the fluorescence of (7-nitrobenz-2-oxa-1,3-diazol-4yl) amino (NBD) labelled PAH layers assembled on silica particles by flow cytometry. NBD is reduced when it encounters dithionite leading to the disappearance of the fluorescence. The fluorescence decay curves show a slow diffusion of dithionite, that does not follow classical Fickean law. Dithionite diffusion in the PEMs is shown to be a non-Markovian process and the slow diffusion can be described via diffusion equations with fractional time derivatives. Results are explained assuming subdifussion of dithionite in the PEMs, as a result of the trapping of the negatively charged dithionite in the positively charged layers of PAH.
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Affiliation(s)
- I Vardanyan
- Department of Molecular Physics, Yerevan State University, 1 Al. Manoogian Str., 0025, Yerevan, Armenia
| | - V Arakelyan
- Department of Molecular Physics, Yerevan State University, 1 Al. Manoogian Str., 0025, Yerevan, Armenia.
| | - Z Navoyan
- Department of Molecular Physics, Yerevan State University, 1 Al. Manoogian Str., 0025, Yerevan, Armenia
| | | | - S E Moya
- Soft Matter Nanotechnology Lab, CIC biomaGUNE, 20009, San Sebastian, Spain.
| | - E Donath
- Institute of Medical and Biophysics, University of Leipzig, Haertelstrasse 16-18, Leipzig, Germany
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21
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Martinelli H, Tasca E, Andreozzi P, Libertone S, Ritacco H, Giustini M, Moya SE. Polarity studies of single polyelectrolyte layers in polyelectrolyte multilayers probed by steady state and life time doxorubicin fluorescence. J Colloid Interface Sci 2021; 607:153-162. [PMID: 34506997 DOI: 10.1016/j.jcis.2021.08.207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 07/24/2021] [Revised: 08/20/2021] [Accepted: 08/30/2021] [Indexed: 11/27/2022]
Abstract
HYPOTHESIS Polarity in polyelectrolyte multilayers (PEMs) may vary from the inner to the top layers of the film as the charge compensation of the layers is more effective inside the PEMs than in outer layers. Doxorubicin hydrochloride (DX) is used here to sense polarity at the single polyelectrolyte level inside PEMS. EXPERIMENTAL DX is complexed electrostatically to a polyanion, either polystyrene sulfonate (PSS) or polyacrylic acid (PAA) and assembled at selected positions in a multilayer of the polyanion and polyallylamine hydrochloride (PAH) as polycation. Local polarity in the layer domain is evaluated through changes in the intensity ratio of the first to second band of spectra of DX (I1/I2 ratio) by steady state fluorescence, and by Lifetime fluorescence. FINDINGS PAH/PSS multilayers, show a polarity similar to water with DX/PSS as top layer, decreasing to I1/I2 ratios similar to organic solvents as the number of polyelectrolyte layers assembled on top increases. For PAH/PAA multilayers, polarity values reflect a more polar environment than water when DX/PAA is the top layer, remaining unaltered by the assembly of polyelectrolyte layers on top. Results show that different polar environments may be present in a PEM when considering polarity at the single layer level.
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Affiliation(s)
- Hernan Martinelli
- Instituto de Física del Sur (IFISUR-CONICET), Av. Alem 1253, Bahía Blanca (8000), Argentina; Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain
| | - Elisamaria Tasca
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain; Chemistry Department, University "La Sapienza", P.le Aldo Moro 5, 00185 Rome, Italy
| | - Patrizia Andreozzi
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain; Consorzio Sistemi a Grande Interfase, Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy
| | - Sara Libertone
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain
| | - Hernan Ritacco
- Instituto de Física del Sur (IFISUR-CONICET), Av. Alem 1253, Bahía Blanca (8000), Argentina
| | - Mauro Giustini
- Chemistry Department, University "La Sapienza", P.le Aldo Moro 5, 00185 Rome, Italy; Consorzio Sistemi a Grande Interfase, Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy.
| | - Sergio E Moya
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, 20014 San Sebastián, Guipúzcoa, Spain; Chemistry Department, University "La Sapienza", P.le Aldo Moro 5, 00185 Rome, Italy.
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22
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Bindini E, Ramirez MDLA, Rios X, Cossío U, Simó C, Gomez-Vallejo V, Soler-Illia G, Llop J, Moya SE. In Vivo Tracking of the Degradation of Mesoporous Silica through 89 Zr Radio-Labeled Core-Shell Nanoparticles. Small 2021; 17:e2101519. [PMID: 34145769 DOI: 10.1002/smll.202101519] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/02/2021] [Indexed: 06/12/2023]
Abstract
While mesoporous silica nanoparticles (MSNs) are extensively studied as high-potential drug delivery platforms, the successful clinical translation of these nanocarriers strongly depends on their biodistribution, biodegradation, and elimination patterns in vivo. Here, a novel method is reported to follow the in vivo degradation of MSNs by tracking a radioactive label embedded in the silica structure. Core-shell silica nanoparticles (NPs) with a dense core and a mesoporous shell are labeled with low quantities of the positron emitter 89 Zr, either in the dense core or in the mesoporous shell. In vivo positron emission tomography imaging and ex vivo organ measurements reveal a remarkable difference in the 89 Zr biodistribution between the shell-labeled and the core-labeled NPs. Release of the radiotracer from shell-labeled NPs is used as a probe of the extent of silica dissolution, and a prompt release of the radioisotope is observed, with partial excretion already in the first 2 h post injection, and a slower accumulation in bones over time. On the other hand, when 89 Zr is embedded in the nanoparticle core, the biodistribution remains largely unchanged during the first 6 h. These findings indicate that MSNs have fast, hour-scale, degradation kinetics in vivo.
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Affiliation(s)
- Elisa Bindini
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, San Sebastián, Guipúzcoa, 20014, Spain
| | - Maria de Los Angeles Ramirez
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, San Sebastián, Guipúzcoa, 20014, Spain
- Instituto de Nanosistemas, UNSAM, CONICET, Avenida 25 de Mayo 1021, San Martín, Buenos Aires, 1650, Argentina
| | - Xabier Rios
- Radiochemistry and Nuclear Imaging Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, San Sebastián, Guipúzcoa, 20014, Spain
| | - Unai Cossío
- Radiochemistry and Nuclear Imaging Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, San Sebastián, Guipúzcoa, 20014, Spain
| | - Cristina Simó
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, San Sebastián, Guipúzcoa, 20014, Spain
- Radiochemistry and Nuclear Imaging Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, San Sebastián, Guipúzcoa, 20014, Spain
| | - Vanessa Gomez-Vallejo
- Radiochemistry and Nuclear Imaging Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, San Sebastián, Guipúzcoa, 20014, Spain
| | - Galo Soler-Illia
- Instituto de Nanosistemas, UNSAM, CONICET, Avenida 25 de Mayo 1021, San Martín, Buenos Aires, 1650, Argentina
| | - Jordi Llop
- Radiochemistry and Nuclear Imaging Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, San Sebastián, Guipúzcoa, 20014, Spain
- Centro de Investigación Biomédica en Red - Enfermedades Respiratorias (CIBERES), Av. Monforte de Lemos, 3-5, Madrid, 28029, Spain
| | - Sergio E Moya
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, San Sebastián, Guipúzcoa, 20014, Spain
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23
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García-Salvador A, Katsumiti A, Rojas E, Aristimuño C, Betanzos M, Martínez-Moro M, Moya SE, Goñi-de-Cerio F. A Complete In Vitro Toxicological Assessment of the Biological Effects of Cerium Oxide Nanoparticles: From Acute Toxicity to Multi-Dose Subchronic Cytotoxicity Study. Nanomaterials (Basel) 2021; 11:nano11061577. [PMID: 34208428 PMCID: PMC8234921 DOI: 10.3390/nano11061577] [Citation(s) in RCA: 4] [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: 05/20/2021] [Revised: 06/11/2021] [Accepted: 06/14/2021] [Indexed: 12/22/2022]
Abstract
Engineered nanomaterials (ENMs) are of significant relevance due to their unique properties, which have been exploited for widespread applications. Cerium oxide nanoparticles (CeO2-NPs) are one of most exploited ENM in the industry due to their excellent catalytic and multi-enzyme mimetic properties. Thus, the toxicological effects of these ENMs should be further studied. In this study, the acute and subchronic toxicity of CeO2-NPs were assessed. First, an in vitro multi-dose short-term (24 h) toxicological assessment was performed in three different cell lines: A549 and Calu3 were used to represented lung tissue and 3T3 was used as an interstitial tissue model. After that, a sub-chronic toxicity assessment (90 days) of these NPs was carried out on a realistic and well-established reconstituted primary human airway epithelial model (MucilAir™), cultured at the Air–Liquid Interface (ALI), to study the long-term effects of these particles. Results showed minor toxicity of CeO2-NPs in acute exposures. However, in subchronic exposures, cytotoxic and inflammatory responses were observed in the human airway epithelial model after 60 days of exposure to CeO2-NPs. These results suggest that acute toxicity approaches may underestimate the toxicological effect of some ENMs, highlighting the need for subchronic toxicological studies in order to accurately assess the toxicity of ENM and their cumulative effects in organisms.
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Affiliation(s)
- Adrián García-Salvador
- GAIKER Technology Centre, Basque Research and Technology Alliance (BRTA), 48170 Zamudio, Spain; (A.G.-S.); (A.K.); (C.A.); (M.B.)
| | - Alberto Katsumiti
- GAIKER Technology Centre, Basque Research and Technology Alliance (BRTA), 48170 Zamudio, Spain; (A.G.-S.); (A.K.); (C.A.); (M.B.)
| | - Elena Rojas
- CIC BiomaGUNE, BRTA, 20014 Donostia-San Sebastián, Spain; (E.R.); (M.M.-M.); (S.E.M.)
| | - Carol Aristimuño
- GAIKER Technology Centre, Basque Research and Technology Alliance (BRTA), 48170 Zamudio, Spain; (A.G.-S.); (A.K.); (C.A.); (M.B.)
| | - Mónica Betanzos
- GAIKER Technology Centre, Basque Research and Technology Alliance (BRTA), 48170 Zamudio, Spain; (A.G.-S.); (A.K.); (C.A.); (M.B.)
| | - Marta Martínez-Moro
- CIC BiomaGUNE, BRTA, 20014 Donostia-San Sebastián, Spain; (E.R.); (M.M.-M.); (S.E.M.)
| | - Sergio E. Moya
- CIC BiomaGUNE, BRTA, 20014 Donostia-San Sebastián, Spain; (E.R.); (M.M.-M.); (S.E.M.)
| | - Felipe Goñi-de-Cerio
- GAIKER Technology Centre, Basque Research and Technology Alliance (BRTA), 48170 Zamudio, Spain; (A.G.-S.); (A.K.); (C.A.); (M.B.)
- Correspondence: ; Tel.: +34-688-649-878
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24
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Perrigue PM, Murray RA, Mielcarek A, Henschke A, Moya SE. Degradation of Drug Delivery Nanocarriers and Payload Release: A Review of Physical Methods for Tracing Nanocarrier Biological Fate. Pharmaceutics 2021; 13:770. [PMID: 34064155 PMCID: PMC8224277 DOI: 10.3390/pharmaceutics13060770] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/11/2021] [Accepted: 05/12/2021] [Indexed: 12/13/2022] Open
Abstract
Nanoformulations offer multiple advantages over conventional drug delivery, enhancing solubility, biocompatibility, and bioavailability of drugs. Nanocarriers can be engineered with targeting ligands for reaching specific tissue or cells, thus reducing the side effects of payloads. Following systemic delivery, nanocarriers must deliver encapsulated drugs, usually through nanocarrier degradation. A premature degradation, or the loss of the nanocarrier coating, may prevent the drug's delivery to the targeted tissue. Despite their importance, stability and degradation of nanocarriers in biological environments are largely not studied in the literature. Here we review techniques for tracing the fate of nanocarriers, focusing on nanocarrier degradation and drug release both intracellularly and in vivo. Intracellularly, we will discuss different fluorescence techniques: confocal laser scanning microscopy, fluorescence correlation spectroscopy, lifetime imaging, flow cytometry, etc. We also consider confocal Raman microscopy as a label-free technique to trace colocalization of nanocarriers and drugs. In vivo we will consider fluorescence and nuclear imaging for tracing nanocarriers. Positron emission tomography and single-photon emission computed tomography are used for a quantitative assessment of nanocarrier and payload biodistribution. Strategies for dual radiolabelling of the nanocarriers and the payload for tracing carrier degradation, as well as the efficacy of the payload delivery in vivo, are also discussed.
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Affiliation(s)
- Patrick M. Perrigue
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland; (P.M.P.); (A.M.); (A.H.)
| | - Richard A. Murray
- Instituto Biofisika (UPV/EHU, CSIC), Barrio Sarriena S/N, 48940 Leioa, Spain;
| | - Angelika Mielcarek
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland; (P.M.P.); (A.M.); (A.H.)
| | - Agata Henschke
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland; (P.M.P.); (A.M.); (A.H.)
| | - Sergio E. Moya
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland; (P.M.P.); (A.M.); (A.H.)
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 182, 20014 Donostia San Sebastián, Spain
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25
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Martinez-Moro M, Jenczyk J, Giussi JM, Jurga S, Moya SE. Kinetics of the thermal response of poly(N-isopropylacrylamide co methacrylic acid) hydrogel microparticles under different environmental stimuli: A time-lapse NMR study. J Colloid Interface Sci 2020; 580:439-448. [PMID: 32711195 DOI: 10.1016/j.jcis.2020.07.049] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 07/08/2020] [Accepted: 07/10/2020] [Indexed: 11/28/2022]
Abstract
HYPOTHESIS Hydrogels of N-isopropylacrylamide and methacrylic acid (P(NIPAm-co-MAA)) display pH sensitivity and complex positively charged molecules through carboxylate groups, while having a critical solution temperature at which they reduce in volume and dehydrate. We aimed to elucidate how the responsiveness of MAA to environmental changes alters PNIPAm hydrogels at the molecular level using nuclear magnetic resonance (NMR). Time-lapse NMR allows us to follow the evolution of NMR signal under a temperature stimulus, providing unique information on conformational freedom of the hydrogel polymers. EXPERIMENTS We used time-lapse NMR to follow the evolution of the NMR signal with time over a temperature change from 25 to 40°C and to study the swelling/deswelling kinetics of P(NIPAm-co-MAA) microgels at different pH values and ionic strengths, and in the presence of positively charged molecules complexing carboxylate groups. FINDINGS At acid pH, hydrogel collapse is favored over neutral pH, and at basic pH the carboxylates remain steadily hydrated during temperature increase. Increasing ionic strength results in a faster, more effective collapse than decreasing pH. Complexation of medium-sized molecules with several charges (spermine, spermidine) causes a faster collapse than complexation with large molecular weight poly(allylamine) hydrochloride, but similar to the collapse effected by large poly(diallyldimethylammonium) chloride. This work opens new perspectives to using time-lapse NMR to study thermoresponsive systems that respond to multiple stimuli, with particular relevance in designing hydrogels for drug delivery.
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Affiliation(s)
- Marta Martinez-Moro
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 182 C, 20014 Donostia-San Sebastian, Spain
| | - Jacek Jenczyk
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland.
| | - Juan M Giussi
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CONICET, La Plata 1900, Argentina
| | - Stefan Jurga
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland
| | - Sergio E Moya
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 182 C, 20014 Donostia-San Sebastian, Spain.
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26
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Gutiérrez-Pineda E, Andreozzi P, Diamanti E, Anguiano R, Ziolo RF, Moya SE, José Rodríguez-Presa M, Gervasi CA. Effects of valinomycin doping on the electrical and structural properties of planar lipid bilayers supported on polyelectrolyte multilayers. Bioelectrochemistry 2020; 138:107688. [PMID: 33227594 DOI: 10.1016/j.bioelechem.2020.107688] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 10/16/2020] [Accepted: 10/20/2020] [Indexed: 11/29/2022]
Abstract
Supported Lipid Bilayers (SLBs) on Polyelectrolyte Multilayers (PEMs) have large potential as models for developing sensor devices. SLBs can be designed with receptors and channels, which benefit from the biological environment of the lipid layers, to create a sensing interface for ions and biomarkers. PEMs assembled by the Layer-by-Layer (LBL) technique and used as supports for a lipid bilayer enable an easy integration of the bilayer on almost any surface and device. For electrochemical sensors, LBL assembly enables nanoscale tunable separation of the lipid bilayer from the electrode surface, avoiding undesired effects of the electrode surface on the lipid bilayers. We study the fabrication of valinomycin-doped SLBs on PEMs as a model system for biophysical studies and for selective ion sensing. SLBs are fabricated from dioleoylphosphatidylcholine (DOPC) and dioleoylphosphatidylserine (DOPS) 50:50 vesicles doped with valinomycin, as a K+-selective carrier. SLBs were deposited on electrodes coated with poly(allyl amine hydrochloride) (PAH) and poly(styrene sodium sulfonate) (PSS) multilayers. Lipid bilayer formation was monitored by using Quartz Crystal Microbalance with Dissipation (QCMD) technique and Atomic Force Microscopy (AFM). Electrochemical impedance spectroscopy (EIS) and potentiometric measurements were performed to assess K+ selectivity over other ions and the potential of valinomycin-doped SLBs for K+-sensing.
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Affiliation(s)
- Eduart Gutiérrez-Pineda
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) Universidad Nacional de La Plata - CONICET Sucursal, 4 Casilla de Correo 16, 1900 La Plata, Argentina; Escuela de Ciencias Básicas, Tecnología e Ingeniería, Universidad Nacional Abierta y a Distancia (UNAD), Bucaramanga, Santander, 680001 Colombia.
| | - Patrizia Andreozzi
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramón 182 C, 20009 San Sebastián, Spain
| | - Eleftheria Diamanti
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramón 182 C, 20009 San Sebastián, Spain
| | - Ramiro Anguiano
- Departamento de Materiales Avanzados, Centro de Investigación en Química Aplicada (CIQA), Blvd., Enrique Reyna Hermosillo No.140, 25294 Saltillo, Mexico
| | - Ronald F Ziolo
- Departamento de Materiales Avanzados, Centro de Investigación en Química Aplicada (CIQA), Blvd., Enrique Reyna Hermosillo No.140, 25294 Saltillo, Mexico
| | - Sergio E Moya
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramón 182 C, 20009 San Sebastián, Spain.
| | - María José Rodríguez-Presa
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) Universidad Nacional de La Plata - CONICET Sucursal, 4 Casilla de Correo 16, 1900 La Plata, Argentina
| | - Claudio A Gervasi
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) Universidad Nacional de La Plata - CONICET Sucursal, 4 Casilla de Correo 16, 1900 La Plata, Argentina; Área Electroquímica, Facultad de Ingeniería, Universidad Nacional de La Plata, calle 1 y 47, 1900 La Plata, Argentina.
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Aspermair P, Ramach U, Reiner-Rozman C, Fossati S, Lechner B, Moya SE, Azzaroni O, Dostalek J, Szunerits S, Knoll W, Bintinger J. Dual Monitoring of Surface Reactions in Real Time by Combined Surface-Plasmon Resonance and Field-Effect Transistor Interrogation. J Am Chem Soc 2020; 142:11709-11716. [PMID: 32407629 DOI: 10.1021/jacs.9b11835] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
By combining surface plasmon resonance (SPR) and electrolyte gated field-effect transistor (EG-FET) methods in a single analytical device we introduce a novel tool for surface investigations, enabling simultaneous measurements of the surface mass and charge density changes in real time. This is realized using a gold sensor surface that simultaneously serves as a gate electrode of the EG-FET and as the SPR active interface. This novel platform has the potential to provide new insights into (bio)adsorption processes on planar solid surfaces by directly relating complementary measurement principles based on (i) detuning of SPR as a result of the modification of the interfacial refractive index profile by surface adsorption processes and (ii) change of output current as a result of the emanating effective gate voltage modulations. Furthermore, combination of the two complementary sensing concepts allows for the comparison and respective validation of both analytical techniques. A theoretical model is derived describing the mass uptake and evolution of surface charge density during polyelectrolyte multilayer formation. We demonstrate the potential of this combined platform through the observation of layer-by-layer assembly of PDADMAC and PSS. These simultaneous label-free and real-time measurements allow new insights into complex processes at the solid-liquid interface (like non-Fickian ion diffusion), which are beyond the scope of each individual tool.
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Affiliation(s)
- Patrik Aspermair
- Biosensor Technologies, Austrian Institute of Technology, Konrad-Lorenz-Strasse 24, 3430 Tulln, Austria.,CEST Competence Center for Electrochemical Surface Technologies, Konrad-Lorenz-Strasse 24, 3430 Tulln, Austria.,CNRS, Centrale Lille, ISEN, Universite Valenciennes, UMR 8520-IEMN, Universite de Lille, 59000 Lille, France
| | - Ulrich Ramach
- CEST Competence Center for Electrochemical Surface Technologies, Konrad-Lorenz-Strasse 24, 3430 Tulln, Austria
| | - Ciril Reiner-Rozman
- Biosensor Technologies, Austrian Institute of Technology, Konrad-Lorenz-Strasse 24, 3430 Tulln, Austria
| | - Stefan Fossati
- Biosensor Technologies, Austrian Institute of Technology, Konrad-Lorenz-Strasse 24, 3430 Tulln, Austria
| | - Bernadette Lechner
- Biosensor Technologies, Austrian Institute of Technology, Konrad-Lorenz-Strasse 24, 3430 Tulln, Austria
| | - Sergio E Moya
- CIC biomaGUNE, Paseo Miramon 182 C, 20014 San Sebastian, Spain
| | - Omar Azzaroni
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata-CONICET, Suc. 4, CC 16, 1900 La Plata, Argentina
| | - Jakub Dostalek
- Biosensor Technologies, Austrian Institute of Technology, Konrad-Lorenz-Strasse 24, 3430 Tulln, Austria
| | - Sabine Szunerits
- CNRS, Centrale Lille, ISEN, Universite Valenciennes, UMR 8520-IEMN, Universite de Lille, 59000 Lille, France
| | - Wolfgang Knoll
- Biosensor Technologies, Austrian Institute of Technology, Konrad-Lorenz-Strasse 24, 3430 Tulln, Austria.,CEST Competence Center for Electrochemical Surface Technologies, Konrad-Lorenz-Strasse 24, 3430 Tulln, Austria
| | - Johannes Bintinger
- Biosensor Technologies, Austrian Institute of Technology, Konrad-Lorenz-Strasse 24, 3430 Tulln, Austria
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Rodríguez RC, Troiani H, Moya SE, Bruno MM, Angelomé PC. Bimetallic Ag-Au Nanoparticles Inside Mesoporous Titania Thin Films: Synthesis by Photoreduction and Galvanic Replacement, and Catalytic Activity. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901186] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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)
- Rusbel Coneo Rodríguez
- Gerencia Química & Instituto de Nanociencia y Nanotecnología; Centro Atómico Constituyentes; Comisión Nacional de Energía Atómica, CONICET; Av. Gral. Paz 1499 B1650KNA San Martín Buenos Aires Argentina
- Departamento de Química; Universidad Nacional de Río Cuarto, CONICET; X5804BYA Río Cuarto Córdoba Argentina
| | - Horacio Troiani
- Departamento de Caracterización de Materiales, GIA; CONICET, Centro Atómico Bariloche, Comisión Nacional de Energía Atómica; 8400 San Carlos de Bariloche Río Negro Argentina
| | - Sergio E. Moya
- CIC biomaGUNE; Paseo de Miramón 182 20014 Donostia-San Sebastián Spain
| | - Mariano M. Bruno
- Departamento de Química; Universidad Nacional de Río Cuarto, CONICET; X5804BYA Río Cuarto Córdoba Argentina
| | - Paula C. Angelomé
- Gerencia Química & Instituto de Nanociencia y Nanotecnología; Centro Atómico Constituyentes; Comisión Nacional de Energía Atómica, CONICET; Av. Gral. Paz 1499 B1650KNA San Martín Buenos Aires Argentina
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29
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Allegretto JA, Giussi JM, Moya SE, Azzaroni O, Rafti M. Synthesis and characterization of thermoresponsive ZIF-8@PNIPAm-co-MAA microgel composites with enhanced performance as an adsorption/release platform. RSC Adv 2020; 10:2453-2461. [PMID: 35496105 PMCID: PMC9048415 DOI: 10.1039/c9ra09729e] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 11/20/2019] [Accepted: 01/09/2020] [Indexed: 01/08/2023] Open
Abstract
Composite materials featuring a synergic combination of interesting properties such as stimuli responsiveness and tailored porosity are highly appealing due to their multiple possible applications. We hereby present an example which brings together such features by using poly(N-isopropyl-acrylamide)-derived thermo-responsive microgels and Zn-based Metal Organic Framework (MOF) ZIF-8, capable of selective adsorption. Such a composite was obtained by including methacrylic acid as a co-monomer in the microgel, in order to position carboxylic acid moieties within the polymeric matrix, which via preconcentration of MOF precursors would trigger confined heterogeneous nucleation. The highly integrated composite obtained features thermoresponsivity and permanent porosity. Methylene blue adsorption/desorption experiments were performed, revealing a dramatic enhancement of its cargo capacity together with an increased release efficiency. We hereby present a composite material which combines porosity (ZIF-8 MOF) and stimuli-responsiveness (PNIPAm-co-MAA microgel) in a synergistic way thus opening the path for its use in adsorption and sensing applications.![]()
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Affiliation(s)
- Juan A. Allegretto
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)
- Departamento de Química
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata
- CONICET
| | - Juan M. Giussi
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)
- Departamento de Química
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata
- CONICET
| | | | - Omar Azzaroni
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)
- Departamento de Química
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata
- CONICET
| | - Matias Rafti
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)
- Departamento de Química
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata
- CONICET
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30
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Di Silvio D, Martínez-Moro M, Salvador C, de Los Angeles Ramirez M, Caceres-Velez PR, Ortore MG, Dupin D, Andreozzi P, Moya SE. Self-assembly of poly(allylamine)/siRNA nanoparticles, their intracellular fate and siRNA delivery. J Colloid Interface Sci 2019; 557:757-766. [PMID: 31569055 DOI: 10.1016/j.jcis.2019.09.082] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [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: 08/23/2019] [Revised: 09/17/2019] [Accepted: 09/21/2019] [Indexed: 12/18/2022]
Abstract
Silencing RNA (siRNA) technologies attract significant interest as a therapeutic tool for a large number of diseases. However, the medical translation of this technology is hampered by the lack of effective delivery vehicles for siRNAs in cytosol that prevent their degradation in the bloodstream. The use of molecular complexes based on polyamines have great potential for siRNA delivery as polyamines can protect the siRNA during circulation and at the same time favor siRNA translocation in cytosol. Here, nanoparticles are prepared by complexation of poly(allylamine hydrochloride) (PAH) and siRNA varying the ratio of nitrogen groups from PAH to phosphate groups from siRNA (N/P ratio). Nanoparticles are characterized by transmission electron microscopy and dynamic light scattering. The stability of complexes of green rhodamine labelled PAH (G-PAH) and Cy5 labelled siRNA (R-siRNA) at different pHs and in cell media is studied by fluorescence cross-correlation spectroscopy (FCCS). FCCS studies show that the nanoparticles are stable at physiological pH and in cell media but they disassemble at acidic pH. An optimal N/P ratio of 2 is identified in terms of stability in media, degradation at endosomal pH and toxicity. The intracellular fate of the complexes is studied following uptake in A549 cells. The cross-correlation between G-PAH and R-siRNA decreases substantially 24 h after uptake, while diffusion times of siRNA decrease indicating that the complexes disassemble, liberating the siRNAs. The release of siRNAs into the cytosol is confirmed with parallel confocal laser scanning microscopy. Flow cytometry studies show that PAH/siRNA nanoparticles are effective at silencing green fluorescent protein expression at low N/P ratios at which polyethylenimine/siRNA shows no significant silencing.
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Affiliation(s)
- Desirè Di Silvio
- CICbiomaGUNE - Soft Matter Nanotechnology Group, Paseo Miramón n° 182, Edificio C, 20014 Donostia-San Sebastián, Spain
| | - Marta Martínez-Moro
- CICbiomaGUNE - Soft Matter Nanotechnology Group, Paseo Miramón n° 182, Edificio C, 20014 Donostia-San Sebastián, Spain
| | - Cristian Salvador
- CICbiomaGUNE - Soft Matter Nanotechnology Group, Paseo Miramón n° 182, Edificio C, 20014 Donostia-San Sebastián, Spain; CIDETEC Nanomedicine, Paseo Miramón, 196, 20014 Donostia-San Sebastián, Spain
| | - Maria de Los Angeles Ramirez
- CICbiomaGUNE - Soft Matter Nanotechnology Group, Paseo Miramón n° 182, Edificio C, 20014 Donostia-San Sebastián, Spain; Instituto de Nanosistemas, Universidad Nacional de San Martín (INS-UNSAM), Av. 25 de Mayo 1021, San Martín, Buenos Aires, Argentina
| | - Paolin Rocio Caceres-Velez
- CICbiomaGUNE - Soft Matter Nanotechnology Group, Paseo Miramón n° 182, Edificio C, 20014 Donostia-San Sebastián, Spain
| | - Maria Grazia Ortore
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Damien Dupin
- CIDETEC Nanomedicine, Paseo Miramón, 196, 20014 Donostia-San Sebastián, Spain
| | - Patrizia Andreozzi
- CICbiomaGUNE - Soft Matter Nanotechnology Group, Paseo Miramón n° 182, Edificio C, 20014 Donostia-San Sebastián, Spain.
| | - Sergio E Moya
- CICbiomaGUNE - Soft Matter Nanotechnology Group, Paseo Miramón n° 182, Edificio C, 20014 Donostia-San Sebastián, Spain.
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31
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Andreozzi P, Ricci C, Porcel JEM, Moretti P, Di Silvio D, Amenitsch H, Ortore MG, Moya SE. Mechanistic study of the nucleation and conformational changes of polyamines in presence of phosphate ions. J Colloid Interface Sci 2019; 543:335-342. [DOI: 10.1016/j.jcis.2019.02.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 02/09/2019] [Accepted: 02/11/2019] [Indexed: 01/06/2023]
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32
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Costa F, Jardim KV, Palomec-Garfias AF, Cáceres-Vélez PR, Chaker JA, Medeiros AMM, Moya SE, Sousa MH. Highly Magnetizable Crosslinked Chloromethylated Polystyrene-Based Nanocomposite Beads for Selective Molecular Separation of 4-Aminobenzoic Acid. ACS Omega 2019; 4:5640-5649. [PMID: 31459718 PMCID: PMC6648915 DOI: 10.1021/acsomega.9b00142] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 03/06/2019] [Indexed: 06/10/2023]
Abstract
In this work, we describe the preparation and characterization of highly magnetizable chloromethylated polystyrene-based nanocomposite beads. For synthesis optimization, acid-resistant core-shelled maghemite (γ-Fe2O3) nanoparticles are coated with sodium oleate and directly incorporated into the organic medium during a suspension polymerization process. A crosslinking agent, ethylene glycol dimethacrylate, is used for copolymerization with 4-vinylbenzyl chloride to increase the resistance of the microbeads against leaching. X-ray diffraction, inductively coupled plasma atomic emission spectroscopy, thermogravimetric analysis, scanning electron microscopy, transmission electron microscopy, and optical microscopy are used for bead characterization. The beads form a magnetic composite consisting of ∼500 nm-sized crosslinked polymeric microspheres, embedding ∼8 nm γ-Fe2O3 nanoparticles. This nanocomposite shows large room temperature magnetization (∼24 emu/g) due to the high content of maghemite (∼45 wt %) and resistance against leaching even in acidic media. Moreover, the presence of superficial chloromethyl groups is probed by Fourier transform infrared and X-ray photoelectron spectroscopy. The nanocomposite beads displaying chloromethyl groups can be used to selectively remove aminated compounds that are adsorbed on the beads, as is shown here for the molecular separation of 4-aminobenzoic acid from a mixture with benzoic acid. The high magnetization of the composite beads makes them suitable for in situ molecular separations in environmental and biological applications.
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Affiliation(s)
- Fábio
T. Costa
- Green
Nanotechnology Group, Universidade de Brasília, Brasília DF 72220-900, Brazil
| | - Katiúscia V. Jardim
- Green
Nanotechnology Group, Universidade de Brasília, Brasília DF 72220-900, Brazil
| | | | | | - Juliano A. Chaker
- Green
Nanotechnology Group, Universidade de Brasília, Brasília DF 72220-900, Brazil
| | - Anderson M. M.
S. Medeiros
- Laboratoire
de Chimie des Polymères Organiques, Universitè de Bordeaux, UMR5629, CNRS—Bordeaux INP—ENSCBP, 16 Avenue Pey-Berland, 33607 Pessac, Cedex, France
| | - Sergio E. Moya
- Soft
Matter Nanotechnology Laboratory, CIC biomaGUNE, San Sebastián, Guip 20009, Spain
| | - Marcelo H. Sousa
- Green
Nanotechnology Group, Universidade de Brasília, Brasília DF 72220-900, Brazil
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33
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Wang W, Ciganda R, Wang C, Escobar A, Martinez-Villacorta AM, Ramirez MDLA, Hernández R, Moya SE, Ruiz J, Hamon JR, Astruc D. High catalytic activity of Rh nanoparticles generated from cobaltocene and RhCl3 in aqueous solution. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00742c] [Citation(s) in RCA: 5] [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: 01/28/2023]
Abstract
Cobalticinium chloride-stabilized RhNPs are very efficient catalysts for hydrolysis of H3N-BH3, reduction of 4-NP, hydrogenation of benzene and transfer hydrogenation.
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Affiliation(s)
- Wenjuan Wang
- ISM
- UMR CNRS 5255
- Université de Bordeaux
- Talence 33405 Cedex
- France
| | - Roberto Ciganda
- ISM
- UMR CNRS 5255
- Université de Bordeaux
- Talence 33405 Cedex
- France
| | - Changlong Wang
- ISM
- UMR CNRS 5255
- Université de Bordeaux
- Talence 33405 Cedex
- France
| | - Ane Escobar
- Soft Matter Nanotechnology Lab
- CIC biomaGUNE
- 20014 Donostia-San Sebastián
- Spain
| | | | | | - Ricardo Hernández
- Facultad de Quimica
- Universidad del Pais Vasco
- 20080 San Sebastian
- Spain
| | - Sergio E. Moya
- Soft Matter Nanotechnology Lab
- CIC biomaGUNE
- 20014 Donostia-San Sebastián
- Spain
| | - Jaime Ruiz
- ISM
- UMR CNRS 5255
- Université de Bordeaux
- Talence 33405 Cedex
- France
| | - Jean-René Hamon
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
- France
| | - Didier Astruc
- ISM
- UMR CNRS 5255
- Université de Bordeaux
- Talence 33405 Cedex
- France
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Martínez Porcel JE, Rivas Aiello MB, Arce VB, Di Silvio D, Moya SE, Mártire DO. Effect of hybrid SiO2@Ag nanoparticles with raspberry-like morphology on the excited states of the photosensitizers Rose Bengal and riboflavin. NEW J CHEM 2019. [DOI: 10.1039/c9nj01013k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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
Ag+ is released due to a charge transfer process from the triplet state of adsorbed riboflavin to the silver nanoparticles.
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Affiliation(s)
- Joaquín E. Martínez Porcel
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)
- Universidad Nacional de La Plata
- La Plata
- Argentina
- Soft Matter Nanotechnology
| | - María Belén Rivas Aiello
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)
- Universidad Nacional de La Plata
- La Plata
- Argentina
| | - Valeria B. Arce
- Centro de Investigaciones Ópticas (CIOp)
- (CONICET La Plata – CIC – UNLP)
- Gonnet
- Argentina
| | - Desire Di Silvio
- Soft Matter Nanotechnology
- Centre for Cooperative Research in Biomaterials
- CICbiomaGUNE Unidad Biosuperficies
- 20009 San Sebastian
- Spain
| | - Sergio E. Moya
- Soft Matter Nanotechnology
- Centre for Cooperative Research in Biomaterials
- CICbiomaGUNE Unidad Biosuperficies
- 20009 San Sebastian
- Spain
| | - Daniel O. Mártire
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)
- Universidad Nacional de La Plata
- La Plata
- Argentina
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Catalán J, Fascineli ML, Politakos N, Hartikainen M, Garcia MP, Cáceres-Vélez PR, Moreno C, Silva SWD, Morais PC, Norppa H, Moya SE, Azevedo RB. In vivo toxicological evaluation of polymer brush engineered nanoceria: impact of brush charge. Nanotoxicology 2018; 13:305-325. [DOI: 10.1080/17435390.2018.1543469] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Julia Catalán
- aWork Environment, Occupational Safety, Finnish Institute of Occupational Health, Helsinki, Finland
- bDepartment of Anatomy Embryology and Genetics, University of Zaragoza, Zaragoza, Spain
| | - Maria Luiza Fascineli
- cLaboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília DF, Brazil
| | - Nikolaos Politakos
- dSoft Matter Nanotechnology Laboratory, CIC biomaGUNE, San Sebastián, Spain
| | - Mira Hartikainen
- aWork Environment, Occupational Safety, Finnish Institute of Occupational Health, Helsinki, Finland
| | - Mônica Pereira Garcia
- cLaboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília DF, Brazil
| | - Paolin Rocio Cáceres-Vélez
- cLaboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília DF, Brazil
- dSoft Matter Nanotechnology Laboratory, CIC biomaGUNE, San Sebastián, Spain
| | - Carlos Moreno
- bDepartment of Anatomy Embryology and Genetics, University of Zaragoza, Zaragoza, Spain
| | | | - Paulo César Morais
- eInstitute of Physics, University of Brasília, Brasília DF, Brazil
- fSchool of Chemistry and Chemical Engineering, Anhui University, Hefei, China
| | - Hannu Norppa
- aWork Environment, Occupational Safety, Finnish Institute of Occupational Health, Helsinki, Finland
| | - Sergio E. Moya
- dSoft Matter Nanotechnology Laboratory, CIC biomaGUNE, San Sebastián, Spain
| | - Ricardo Bentes Azevedo
- cLaboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília DF, Brazil
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Di Silvio D, Silvestri A, Lay L, Polito L, Moya SE. Impact of ConcanavalinA affinity in the intracellular fate of Protein Corona on Glucosamine Au nanoparticles. Sci Rep 2018; 8:9046. [PMID: 29899359 PMCID: PMC5998083 DOI: 10.1038/s41598-018-27418-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 05/25/2018] [Indexed: 01/12/2023] Open
Abstract
Biological fate and toxicity of nanoparticles (NPs) are connected to the interaction between NPs and the protein corona (PC) spontaneously forming around NPs in biological matrixes. PC is a dynamic entity that confers biological identity to NPs. In this work, fluorescence cross-correlation spectroscopy (FCCS) is used to study the impact of specific interactions between the NP surface and proteins on the intracellular fate of PC. The stability of the PC formed around glucosamide-functionalized Au-NPs from ConcanavalinA (ConA) or Bovine Serum Albumin (BSA) is characterized by FCCS. The NPs show higher affinity for ConA and competitive assays show that ConA easily exchanges BSA. A549 cells are exposed to glucosamide-functionalized Au-NPs with preformed ConA and BSA PCs. Intracellularly the frequency of cross-correlation for Au NPs with ConA PC remains constant to a 70% value until 24 h while for BSA it decreases to a 15% during the same period. FCCS measurements in several locations in the cell point out a different level of aggregation for the NPs with either ConA or BSA PCs. Our results show that the affinity of NPs functionalized with a ligand with affinity for a specific protein in bulk is retained intracellularly influencing NP fate and translocation.
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Affiliation(s)
- Desirè Di Silvio
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramon, 182, 20014, San Sebastian, Spain
| | - Alessandro Silvestri
- CNR - ISTM, Nanotechnology Lab., Via G. Fantoli 16/15, Milan, Italy
- Department of Chemistry, University of Milan, Via C. Golgi 19, Milan, Italy
- Max-Planck Institute of Colloids and Interfaces, Potsdam-Golm, 14476, Germany
| | - Luigi Lay
- Department of Chemistry, University of Milan, Via C. Golgi 19, Milan, Italy
- CRC Materiali Polimerici (LaMPo), University of Milan, Via C. Golgi 19, 20133, Milan, Italy
| | - Laura Polito
- CNR - ISTM, Nanotechnology Lab., Via G. Fantoli 16/15, 20138, Milan, Italy
| | - Sergio E Moya
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramon, 182, 20014, San Sebastian, Spain.
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37
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Simón-Gracia L, Scodeller P, Fuentes SS, Vallejo VG, Ríos X, San Sebastián E, Sidorenko V, Di Silvio D, Suck M, De Lorenzi F, Rizzo LY, von Stillfried S, Kilk K, Lammers T, Moya SE, Teesalu T. Application of polymersomes engineered to target p32 protein for detection of small breast tumors in mice. Oncotarget 2018; 9:18682-18697. [PMID: 29721153 PMCID: PMC5922347 DOI: 10.18632/oncotarget.24588] [Citation(s) in RCA: 28] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 02/10/2018] [Indexed: 12/11/2022] Open
Abstract
Triple negative breast cancer (TNBC) is the deadliest form of breast cancer and its successful treatment critically depends on early diagnosis and therapy. The multi-compartment protein p32 is overexpressed and present at cell surfaces in a variety of tumors, including TNBC, specifically in the malignant cells and endothelial cells, and in macrophages localized in hypoxic areas of the tumor. Herein we used polyethylene glycol-polycaprolactone polymersomes that were affinity targeted with the p32-binding tumor penetrating peptide LinTT1 (AKRGARSTA) for imaging of TNBC lesions. A tyrosine residue was added to the peptide to allow for 124I labeling and PET imaging. In a TNBC model in mice, systemic LinTT1-targeted polymersomes accumulated in early tumor lesions more than twice as efficiently as untargeted polymersomes with up to 20% ID/cc at 24 h after administration. The PET-imaging was very sensitive, allowing detection of tumors as small as ∼20 mm3. Confocal imaging of tumor tissue sections revealed a high degree of vascular exit and stromal penetration of LinTT1-targeted polymersomes and co-localization with tumor-associated macrophages. Our studies show that systemic LinTT1-targeted polymersomes can be potentially used for precision-guided tumor imaging and treatment of TNBC.
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Affiliation(s)
- Lorena Simón-Gracia
- Laboratory of Cancer Biology, Institute of Biomedicine and Translational Medicine, University of Tartu, 50411 Tartu, Estonia
| | - Pablo Scodeller
- Laboratory of Cancer Biology, Institute of Biomedicine and Translational Medicine, University of Tartu, 50411 Tartu, Estonia
| | | | | | - Xabier Ríos
- Laboratory of Radiochemistry, CIC Biomagune, 20009 Donostia, Spain
| | | | - Valeria Sidorenko
- Laboratory of Cancer Biology, Institute of Biomedicine and Translational Medicine, University of Tartu, 50411 Tartu, Estonia
| | | | - Meina Suck
- Institute for Experimental Molecular Imaging, RWTH Aachen University Clinic, 52074 Aachen, Germany.,Department of Targeted Therapeutics, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, 7500 AE Enschede, The Netherlands
| | - Federica De Lorenzi
- Institute for Experimental Molecular Imaging, RWTH Aachen University Clinic, 52074 Aachen, Germany
| | - Larissa Yokota Rizzo
- Institute for Experimental Molecular Imaging, RWTH Aachen University Clinic, 52074 Aachen, Germany
| | - Saskia von Stillfried
- Institute for Experimental Molecular Imaging, RWTH Aachen University Clinic, 52074 Aachen, Germany
| | - Kalle Kilk
- Department of Biochemistry, Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, 50411, Estonia
| | - Twan Lammers
- Institute for Experimental Molecular Imaging, RWTH Aachen University Clinic, 52074 Aachen, Germany.,Department of Targeted Therapeutics, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, 7500 AE Enschede, The Netherlands
| | - Sergio E Moya
- Soft Matter Laboratoy, CIC Biomagune, 20009 Donostia, Spain
| | - Tambet Teesalu
- Laboratory of Cancer Biology, Institute of Biomedicine and Translational Medicine, University of Tartu, 50411 Tartu, Estonia.,Cancer Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California 92097, USA.,Center for Nanomedicine, University of California Santa Barbara, Santa Barbara, California 93106, USA
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38
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Piccinini E, Tuninetti JS, Irigoyen Otamendi J, Moya SE, Ceolín M, Battaglini F, Azzaroni O. Surfactants as mesogenic agents in layer-by-layer assembled polyelectrolyte/surfactant multilayers: nanoarchitectured "soft" thin films displaying a tailored mesostructure. Phys Chem Chem Phys 2018; 20:9298-9308. [PMID: 29616241 DOI: 10.1039/c7cp08203g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Interfacial supramolecular architectures displaying mesoscale organized components are of fundamental importance for developing materials with novel or optimized properties. Nevertheless, engineering the multilayer assembly of different building blocks onto a surface and exerting control over the internal mesostructure of the resulting film is still a challenging task in materials science. In the present work we demonstrate that the integration of surfactants (as mesogenic agents) into layer-by-layer (LbL) assembled polyelectrolyte multilayers offers a straightforward approach to control the internal film organization at the mesoscale level. The mesostructure of films constituted of hexadecyltrimethylammonium bromide, CTAB, and polyacrylic acid, PAA (of different molecular weights), was characterized as a function of the number of assembled layers. Structural characterization of the multilayered films by grazing-incidence small-angle X-ray scattering (GISAXS), showed the formation of mesostructured composite polyelectrolyte assemblies. Interestingly, the (PAA/CTA)n assemblies prepared with low PAA molecular weight presented different mesostructural regimes which were dependent on the number of assembled layers: a lamellar mesophase for the first bilayers, and a hexagonal circular mesophase for n ≥ 7. This interesting observation was explained in terms of the strong interaction between the substrate and the first layers leading to a particular mesophase. As the film increases its thickness, the prevalence of this strong interaction decreases and the supramolecular architecture exhibits a "bulk" mesophase. Finally, we demonstrated that the molecular weight of the polyelectrolyte has a considerable impact on the meso-organization for the (PAA/CTA)n assemblies. We consider that these studies open a path to new rational methodologies to construct "nanoarchitectured" polyelectrolyte multilayers.
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Affiliation(s)
- Esteban Piccinini
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) - Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET, Suc. 4, CC 16, La Plata, Argentina.
| | - Jimena S Tuninetti
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) - Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET, Suc. 4, CC 16, La Plata, Argentina.
| | - Joseba Irigoyen Otamendi
- Soft Matter Nanotechnology Group, CIC BiomaGUNE. Paseo Miramón 182, 20009 San Sebastián, Gipuzkoa, Spain
| | - Sergio E Moya
- Soft Matter Nanotechnology Group, CIC BiomaGUNE. Paseo Miramón 182, 20009 San Sebastián, Gipuzkoa, Spain
| | - Marcelo Ceolín
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) - Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET, Suc. 4, CC 16, La Plata, Argentina.
| | - Fernando Battaglini
- INQUIMAE, Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2 C1428EHA, Buenos Aires, Argentina
| | - Omar Azzaroni
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) - Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET, Suc. 4, CC 16, La Plata, Argentina.
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39
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Py-Daniel KR, Calvo J, Infante C CM, Pires Junior OR, Moya SE, Azevedo RB. UHPLC-MS and MALDI-MS study of aluminum phthalocyanine chloride and development of a bioanalytical method for its quantification in nanoemulsions and biological matrices. Talanta 2018; 179:159-166. [PMID: 29310217 DOI: 10.1016/j.talanta.2017.10.057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 09/11/2017] [Revised: 10/26/2017] [Accepted: 10/27/2017] [Indexed: 11/16/2022]
Abstract
Metal phthalocyanines are promising components in photodynamic therapy. Aluminum phthalocyanine chloride (AlClPc) has been used to treat oral cancer in mice, human carious tissue, lung cancer cells and other conditions. To overcome the high hydrophobicity of AlClPc, phthalocyanine is often encapsulated in nanoformulations. Despite increased usage, little is known about the pharmacokinetics and biodistribution of AlClPc. The aim of this study was the development and validation of a UHPLC-MS method for the determination of AlClPc in solution after extraction from nanoformulations and biological matrices such as plasma and tissue. The described method has been assayed as to selectivity, linearity, limits of detection and quantification, precision and recovery. The present study is the first to describe the behavior of AlClPc in biological matrices with mass spectrometry as well as the first to describe the chromatographic behavior of AlClPc contaminants. Molecular mass analysis identified dechlorination of AlClPc by both LC/MS and MALDI-MS and an adduct formation in LC/MS. The parameters observed indicated that the method has applicability and robustness for use in biodistribution studies.
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Affiliation(s)
- Karen R Py-Daniel
- Biological Sciences Institute, Universidade de Brasília, Brasília DF 70910-900, Brazil
| | - Javier Calvo
- Soft Matter Nanotechnology Group, CIC BiomaGUNE, San Sebastián, Gipuzkoa, Spain
| | - Carlos M Infante C
- Chemical Institute, Universidade de Brasília, Brasília DF 70910-900, Brazil
| | | | - Sergio E Moya
- Soft Matter Nanotechnology Group, CIC BiomaGUNE, San Sebastián, Gipuzkoa, Spain
| | - Ricardo B Azevedo
- Biological Sciences Institute, Universidade de Brasília, Brasília DF 70910-900, Brazil.
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40
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Donath E, Vardanyan I, Meyer S, Murray RA, Moya SE, Navoyan Z, Arakelyan V. A typical diffusion monitored by flow cytometry: slow diffusion of small molecules in polyelectrolyte multilayers. Nanoscale 2018; 10:765-772. [PMID: 29256567 DOI: 10.1039/c7nr08405f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
An innovative approach has been developed to measure small molecule diffusion in polyelectrolyte multilayers (PEMs) assembled on colloidal particles by means of flow cytometry (FACS). FACS allows changes in fluorescence emission as a function of time to be recorded per particle in a colloidal dispersion. Dithionite, S2O42-, diffusion in PEMs composed of polyallylamine hydrochloride (PAH) and poly styrene sulfonate (PSS) assembled on silica particles has been studied by recording the quenching of (7-nitrobenz-2-oxa-1,3-diazol-4yl)amino (NBD) labelled PAH layers by FACS. NBD is reduced when it encounters dithionite, and is therefore no longer fluorescent. The decay in fluorescence will be used to follow the kinetics of dithionite diffusion. The fluorescence decay curves show slow diffusion that does not follow classical Fickean law. However, by assuming that the diffusion coefficient is time dependent and follows an inverse power law in an atypical diffusion case, it was possible to obtain an excellent fit for the decay curves.
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Affiliation(s)
- E Donath
- Institute of Medical and Biophysics, University of Leipzig, Haertelstrasse 16-18, Leipzig, Germany
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41
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Diamanti E, Gutiérrez-Pineda E, Politakos N, Andreozzi P, Rodriguez-Presa MJ, Knoll W, Azzaroni O, Gervasi CA, Moya SE. Gramicidin ion channels in a lipid bilayer supported on polyelectrolyte multilayer films: an electrochemical impedance study. Soft Matter 2017; 13:8922-8929. [PMID: 29143830 DOI: 10.1039/c7sm01539a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Supported membranes on polymer cushions are of fundamental interest as models for cell membranes. The use of polyelectrolyte multilayers (PEMs) assembled by the layer by layer (LbL) technique as supports for a bilayer allows for easy integration of the lipid bilayer on surfaces and devices and for nanoscale tunable spacing of the lipid bilayer. Controlling ionic permeability in lipid bilayers supported on PEMs triggers potential applications in sensing and as models for transport phenomena in cell membranes. Lipid bilayers displaying gramicidin channels are fabricated on top of polyallylamine hydrochloride (PAH) and polystyrene sulfonate (PSS) multilayer films, by the assembly of vesicles of phosphatidylcholine and phosphatidylserine, 50 : 50 M/M, carrying gramicidin (GA). Quartz crystal microbalance with dissipation shows that the vesicles with GA fuse into a bilayer. Atomic force microscopy reveals that the presence of GA alters the bilayer topography resulting in depressions in the bilayer of around 70 nm in diameter. Electrochemical impedance spectroscopy (EIS) studies show that supported bilayers carrying GA have smaller resistances than the bilayers without GA. Lipid layers carrying GA display a higher conductance for K+ than for Na+ and are blocked in the presence of Ca2+.
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Affiliation(s)
- Eleftheria Diamanti
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramón 182 C, 20009 San Sebastián, Guipúzcoa, Spain.
| | - Eduart Gutiérrez-Pineda
- Instituto de Investigaciones, Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de la Plata, CONICET, Sucursal 4-C.C.16, 1900 La Plata, Argentina. and Area Electroquímica, Facultad de Ingeniería, Universidad Nacional de La Plata, calle 1 y 47, 1900 La Plata, Argentina
| | - Nikolaos Politakos
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramón 182 C, 20009 San Sebastián, Guipúzcoa, Spain.
| | - Patrizia Andreozzi
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramón 182 C, 20009 San Sebastián, Guipúzcoa, Spain.
| | - María José Rodriguez-Presa
- Instituto de Investigaciones, Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de la Plata, CONICET, Sucursal 4-C.C.16, 1900 La Plata, Argentina.
| | - Wolfgang Knoll
- AIT Austrian Institute of Technology, Vienna, and CEST Competence Center for Electrochemical Surface Technology, Wiener Neustadt, Austria
| | - Omar Azzaroni
- Instituto de Investigaciones, Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de la Plata, CONICET, Sucursal 4-C.C.16, 1900 La Plata, Argentina.
| | - Claudio A Gervasi
- Instituto de Investigaciones, Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de la Plata, CONICET, Sucursal 4-C.C.16, 1900 La Plata, Argentina. and Area Electroquímica, Facultad de Ingeniería, Universidad Nacional de La Plata, calle 1 y 47, 1900 La Plata, Argentina
| | - Sergio E Moya
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramón 182 C, 20009 San Sebastián, Guipúzcoa, Spain.
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42
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Andreozzi P, Diamanti E, Py-Daniel KR, Cáceres-Vélez PR, Martinelli C, Politakos N, Escobar A, Muzi-Falconi M, Azevedo R, Moya SE. Exploring the pH Sensitivity of Poly(allylamine) Phosphate Supramolecular Nanocarriers for Intracellular siRNA Delivery. ACS Appl Mater Interfaces 2017; 9:38242-38254. [PMID: 29039643 DOI: 10.1021/acsami.7b11132] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Silencing RNA (siRNA) technologies emerge as a promising therapeutic tool for the treatment of multiple diseases. An ideal nanocarrier (NC) for siRNAs should be stable at physiological pH and release siRNAs in acidic endosomal pH, fulfilling siRNA delivery only inside cells. Here, we show a novel application of polyamine phosphate NCs (PANs) based on their capacity to load negatively charged nucleic acids and their pH stability. PANs are fabricated by complexation of phosphate anions from phosphate buffer solution (PB) with the amine groups of poly(allylamine) hydrochloride as carriers for siRNAs. PANs are stable in a narrow pH interval, from 7 to 9, and disassemble at pH's higher than 9 and lower than 6. siRNAs are encapsulated by complexation with poly(allylamine) hydrochloride before or after PAN formation. PANs with encapsulated siRNAs are stable in cell media. Once internalized in cells following endocytic pathways, PANs disassemble at the low endosomal pH and release the siRNAs into the cytoplasm. Confocal laser scanning microscopy (CLSM) images of Rhodamine Green labeled PANs (RG-PANs) with encapsulated Cy3-labeled siRNA in A549 cells show that siRNAs are released from the PANs. Colocalization experiments with labeled endosomes and either labeled siRNAs prove the translocation of siRNAs into the cytosol. As a proof of concept, it is shown that PANs with encapsulated green fluorescence protein (GFP) siRNAs silence GFP in A549 cells expressing this protein. Silencing efficacy was evaluated by flow cytometry, CLSM, and Western blot assays. These results open the way for the use of poly(allylamine) phosphate nanocarriers for the intracellular delivery of genetic materials.
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Affiliation(s)
- Patrizia Andreozzi
- Soft Matter Nanotechnology Group, CIC biomaGUNE , Paseo Miramón 182 C, San Sebastián, Guipúzcoa 20014, Spain
| | - Eleftheria Diamanti
- Soft Matter Nanotechnology Group, CIC biomaGUNE , Paseo Miramón 182 C, San Sebastián, Guipúzcoa 20014, Spain
| | - Karen Rapp Py-Daniel
- Departamento de Genética e Morfologia, Universidade de Brasília, Instituto de Ciências Biológicas , Brasília, Distrito Federal 70910-900, Brazil
| | - Paolin Rocio Cáceres-Vélez
- Departamento de Genética e Morfologia, Universidade de Brasília, Instituto de Ciências Biológicas , Brasília, Distrito Federal 70910-900, Brazil
| | - Chiara Martinelli
- Department of Biosciences, University of Milan , Via Giovanni Celoria, 26, Milan 20133, Italy
| | - Nikolaos Politakos
- Soft Matter Nanotechnology Group, CIC biomaGUNE , Paseo Miramón 182 C, San Sebastián, Guipúzcoa 20014, Spain
| | - Ane Escobar
- Soft Matter Nanotechnology Group, CIC biomaGUNE , Paseo Miramón 182 C, San Sebastián, Guipúzcoa 20014, Spain
| | - Marco Muzi-Falconi
- Department of Biosciences, University of Milan , Via Giovanni Celoria, 26, Milan 20133, Italy
| | - Ricardo Azevedo
- Departamento de Genética e Morfologia, Universidade de Brasília, Instituto de Ciências Biológicas , Brasília, Distrito Federal 70910-900, Brazil
| | - Sergio E Moya
- Soft Matter Nanotechnology Group, CIC biomaGUNE , Paseo Miramón 182 C, San Sebastián, Guipúzcoa 20014, Spain
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43
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Muzzio NE, Pasquale MA, Diamanti E, Gregurec D, Moro MM, Azzaroni O, Moya SE. Enhanced antiadhesive properties of chitosan/hyaluronic acid polyelectrolyte multilayers driven by thermal annealing: Low adherence for mammalian cells and selective decrease in adhesion for Gram-positive bacteria. Materials Science and Engineering: C 2017; 80:677-687. [DOI: 10.1016/j.msec.2017.07.016] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 05/30/2017] [Accepted: 07/07/2017] [Indexed: 01/02/2023]
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Silvestri A, Di Silvio D, Llarena I, Murray RA, Marelli M, Lay L, Polito L, Moya SE. Influence of surface coating on the intracellular behaviour of gold nanoparticles: a fluorescence correlation spectroscopy study. Nanoscale 2017; 9:14730-14739. [PMID: 28948261 DOI: 10.1039/c7nr04640e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
In the biomedical applications of nanoparticles (NPs), the proper choice of surface chemistry is a crucial aspect in their design. The nature of the coating can heavily impact the interaction of NPs with biomolecules, affect the state of aggregation, and ultimately determine their biological fate. As such, protein corona formation and the aggregation behaviour of gold NPs (Au NPs) are studied here. Au NPs are prepared with four distinct surface functionalisations, namely mercaptosuccinic acid (MSA), N-4-thiobutyroil glucosamine, HS-PEG5000 and HS-alkyl-PEG600. Corona formation, aggregation, and the intracellular behaviour of the Au NPs are then investigated by means of Fluorescence Correlation Spectroscopy (FCS) in cell culture media and in live cells. To evaluate the state of aggregation and the formation of a protein corona, the Au NPs are incubated in cell media and the diffusion coefficient is determined via FCS. The in vitro behaviour is compared with the level of aggregation of the NPs in cells. Diffusion times of the NPs are estimated at different positions in the cell after a one hour incubation period. It is found that the majority of MSA and glucose-Au NPs are present inside the cell as slowly diffusing species with diffusion times (τD) greater than 6000 μs (hydrodynamic diameter >250 nm). PEGylated Au NPs adsorb a small amount of protein and manifest low agglomeration both in media and in living cells. In particular, the HS-alkyl-PEG600 coating shows an excellent correlation between lower protein adsorption, 4-fold lower compared to the MSA coated NPs, and limited intracellular aggregation. In the case of single HS-alkyl-PEG600 coated NPs, it is found that typical intracellular τD values range from 500 to 1500 μs, indicating that these particles display reduced aggregation in the intracellular environment.
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Affiliation(s)
- A Silvestri
- CNR - ISTM, Nanotechnology Lab., Via G. Fantoli 16/15, 20138, Milan, Italy.
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45
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Escobar A, Yate L, Grzelczak M, Amenitsch H, Moya SE, Bordoni AV, Angelomé PC. One-Step Synthesis of Mesoporous Silica Thin Films Containing Available COOH Groups. ACS Omega 2017; 2:4548-4555. [PMID: 31457747 PMCID: PMC6641613 DOI: 10.1021/acsomega.7b00560] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 06/29/2017] [Indexed: 05/10/2023]
Abstract
Inorganic-organic hybrid mesoporous silica thin films with covalently bonded carboxylic acid groups were synthesized in a one-step procedure, using carboxylic-derivatized alkoxysilanes obtained by photochemical radical thiol-ene addition (PRTEA). The organosilanes were synthesized by clicking mercaptosuccinic or mercaptoacetic thioacids with vinyltrimethoxysilane, using benzophenone as the photoradical initiator. The films were synthesized by evaporation-induced self-assembly of a sol containing a mixture of tetraethoxysilane and different quantities of the organosilanes, without any further treatment after the PRTEA reaction. Two nonionic surfactants were used as templates to produce different pore sizes. Different aging times were also applied. Structural characterization with electron microscopy, porosimetry measurements, and small angle X-ray scattering with two-dimensional detection demonstrated the obtention of mesoporous phases whose degree of ordering depended on the amount of added organosilane. The incorporation of the functional silanes was shown by X-ray photoelectron spectroscopy, and the presence of the COOH groups was confirmed by Fourier transform infrared (FTIR). Finally, the availability of the COOH groups for further chemical modification was demonstrated by FTIR by following the changes in the typical carbonyl IR bands during proton exchange and metal complexation. The proposed simple methodology allows obtaining COOH-modified silica thin films in one step, without the need of hard reaction conditions or deprotection steps. Functionalization with carboxyl groups brings a pH-dependent switch-ability to the pore surface that can be used for multifunctional mesoporous materials design.
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Affiliation(s)
- Ane Escobar
- CIC
biomaGUNE, Paseo de Miramón
182, 20014 Donostia-San
Sebastián, Spain
| | - Luis Yate
- CIC
biomaGUNE, Paseo de Miramón
182, 20014 Donostia-San
Sebastián, Spain
| | - Marek Grzelczak
- CIC
biomaGUNE, Paseo de Miramón
182, 20014 Donostia-San
Sebastián, Spain
- Ikerbasque,
Basque Foundation for Science, 48013 Bilbao, Spain
| | - Heinz Amenitsch
- Institute
for Inorganic Chemistry, Graz University
of Technology, Stremayergasse 9/IV, 8010 Graz, Austria
| | - Sergio E. Moya
- CIC
biomaGUNE, Paseo de Miramón
182, 20014 Donostia-San
Sebastián, Spain
| | - Andrea V. Bordoni
- Gerencia
Química − Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica,
CONICET, Avenida General Paz 1499, B1650KNA San Martín, Buenos Aires, Argentina
- E-mail: (A.V.B.)
| | - Paula C. Angelomé
- Gerencia
Química − Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica,
CONICET, Avenida General Paz 1499, B1650KNA San Martín, Buenos Aires, Argentina
- E-mail: (P.C.A.)
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Cortez ML, Ceolín M, Cuellar Camacho L, Donath E, Moya SE, Battaglini F, Azzaroni O. Solvent Effects on the Structure-Property Relationship of Redox-Active Self-Assembled Nanoparticle-Polyelectrolyte-Surfactant Composite Thin Films: Implications for the Generation of Bioelectrocatalytic Signals in Enzyme-Containing Assemblies. ACS Appl Mater Interfaces 2017; 9:1119-1128. [PMID: 27977921 DOI: 10.1021/acsami.6b13456] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The search for strategies to improve the performance of bioelectrochemical platforms based on supramolecular materials has received increasing attention within the materials science community, where the main objective is to develop low-cost and flexible routes using self-assembly as a key enabling process. Important contributions to the performance of such bioelectrochemical devices have been made based on the integration and supramolecular organization of redox-active polyelectrolyte-surfactant complexes on electrode supports. Here, we examine the influence of the processing solvent on the interplay between the supramolecular mesoorganization and the bioelectrochemical properties of redox-active self-assembled nanoparticle-polyelectrolyte-surfactant nanocomposite thin films. Our studies reveal that the solvent used in processing the supramolecular films and the presence of metal nanoparticles not only have a substantial influence in determining the mesoscale organization and morphological characteristics of the film but also have a strong influence on the efficiency and performance of the bioelectrochemical system. In particular, a higher bioelectrochemical response is observed when nanocomposite supramolecular films were cast from aqueous solutions. These observations seem to be associated with the fact that the use of aqueous solvents increases the hydrophilicity of the film, thus favoring the access of glucose, particularly at low concentrations. We believe that these results improve our current understanding of supramolecular nanocomposite materials generated via polyelectrolyte-surfactant complexes, in order to use the processing conditions as a variable to improve the performance of bioelectrochemical devices.
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Affiliation(s)
- M Lorena Cortez
- INQUIMAE, Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires , Ciudad Universitaria, Pabellón 2, C1428EHA, Buenos Aires, Argentina
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata , CONICET, CC 16 Suc. 4 (1900), La Plata, Argentina
| | - Marcelo Ceolín
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata , CONICET, CC 16 Suc. 4 (1900), La Plata, Argentina
| | - Luis Cuellar Camacho
- Institute of Biophysics and Medical Physics, Faculty of Medicine, University of Leipzig , Leipzig, Germany
| | - Edwin Donath
- Institute of Biophysics and Medical Physics, Faculty of Medicine, University of Leipzig , Leipzig, Germany
| | - Sergio E Moya
- CIC biomaGUNE , Paseo Miramón 182, 20009 San Sebastián, Gipuzkoa, Spain
| | - Fernando Battaglini
- INQUIMAE, Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires , Ciudad Universitaria, Pabellón 2, C1428EHA, Buenos Aires, Argentina
| | - Omar Azzaroni
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata , CONICET, CC 16 Suc. 4 (1900), La Plata, Argentina
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Gregurec D, Velasco-Lozano S, Moya SE, Vázquez L, López-Gallego F. Force spectroscopy predicts thermal stability of immobilized proteins by measuring microbead mechanics. Soft Matter 2016; 12:8718-8725. [PMID: 27714304 DOI: 10.1039/c6sm01435f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Optimal immobilization of enzymes on porous microbeads enables the fabrication of highly active and stable heterogeneous biocatalysts to implement biocatalysis in synthetic and analytical chemistry. However, empirical procedures for enzyme immobilization still prevail over rational ones because there is an unmet need for more comprehensive characterization techniques that aid to understand and trace the immobilization process. Here, we present the use of atomic force spectroscopy (AFS) as an innovative solution to indirectly characterize immobilized proteins on porous materials and monitor the immobilization process in real time. We investigate the mechanical properties of porous agarose microbeads immobilizing proteins by indenting a colloidal probe (silica microparticle) into a single bead. AFS demonstrates that the binding of proteins to the solid matrix of an agarose microbead alters its stiffness. Interestingly, we discovered that irreversible and multivalent immobilizations that make microbeads stiffer also stabilize the immobilized proteins against the temperature. Hence, we propose atomic force spectroscopy as a useful technique to indirectly unravel the stability of the immobilized enzymes investigating the mechanics of the heterogenous biocatalysts as a solid biomaterial beyond the intrinsic mechanics of the proteins.
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Affiliation(s)
- Danijela Gregurec
- Soft Matter Nanotechnology Group, CIC BiomaGUNE, Paseo Miramon 182, San Sebasitan-Donostia, 20009, Spain and RLE-Bioelectronics Research Group, Massachusetts Institute of Technology, 77 Massachusetts Ave 8-031, Cambridge, MA 02139, USA
| | - Susana Velasco-Lozano
- Heterogeneus Biocatalysis Group, CIC BiomaGUNE, Paseo Miramon 182, San Sebasitan-Donostia, 20009, Spain.
| | - Sergio E Moya
- Soft Matter Nanotechnology Group, CIC BiomaGUNE, Paseo Miramon 182, San Sebasitan-Donostia, 20009, Spain
| | - Luis Vázquez
- Instituto de Ciencia de Materiales de Madrid (CSIC), Campus de Cantoblanco, C\Sor Juana Inés de la Cruz 3, Madrid, 28049, Spain
| | - Fernando López-Gallego
- Heterogeneus Biocatalysis Group, CIC BiomaGUNE, Paseo Miramon 182, San Sebasitan-Donostia, 20009, Spain. and IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
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Diamanti E, Gregurec D, Rodríguez-Presa MJ, Gervasi CA, Azzaroni O, Moya SE. High Resistivity Lipid Bilayers Assembled on Polyelectrolyte Multilayer Cushions: An Impedance Study. Langmuir 2016; 32:6263-6271. [PMID: 27267089 DOI: 10.1021/acs.langmuir.6b01191] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Supported membranes on top of polymer cushions are interesting models of biomembranes as cell membranes are supported on a polymer network of proteins and sugars. In this work lipid vesicles formed by a mixture of 30% 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) and 70% 1,2-dioleoyl-sn-glycero-3-phospho-l-serine (DOPS) are assembled on top of a polyelectrolyte multilayer (PEM) cushion of poly(allylamine hydrochloride) (PAH) and poly(styrene sodium sulfonate) (PSS). The assembly results in the formation of a bilayer on top of the PEM as proven by means of the quartz crystal microbalance with dissipation technique (QCM-D) and by cryo-transmission electron microscopy (cryo-TEM). The electrical properties of the bilayer are studied by electrochemical impedance spectroscopy (EIS). The bilayer supported on the PEMs shows a high resistance, on the order of 10(7) Ω cm(2), which is indicative of a continuous, dense bilayer. Such resistance is comparable with the resistance of black lipid membranes. This is the first time that such values are obtained for lipid bilayers supported on PEMs. The assembly of polyelectrolytes on top of a lipid bilayer decreases the resistance of the bilayer up to 2 orders of magnitude. The assembly of the polyelectrolytes on the lipids induces defects or pores in the bilayer which in turn prompts a decrease in the measured resistance.
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Affiliation(s)
- Eleftheria Diamanti
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramón 182 C, 20009 San Sebastián, Guipúzcoa, Spain
| | - Danijela Gregurec
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramón 182 C, 20009 San Sebastián, Guipúzcoa, Spain
| | - María José Rodríguez-Presa
- Instituto de Investigaciones, Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de la Plata, CONICET , Sucursal 4-C.C.16, 1900 La Plata, Argentina
| | - Claudio A Gervasi
- Instituto de Investigaciones, Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de la Plata, CONICET , Sucursal 4-C.C.16, 1900 La Plata, Argentina
- Area Electroquímica, Facultad de Ingeniería, Universidad Nacional de La Plata , calle 1 y 47, 1900 La Plata, Argentina
| | - Omar Azzaroni
- Instituto de Investigaciones, Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de la Plata, CONICET , Sucursal 4-C.C.16, 1900 La Plata, Argentina
| | - Sergio E Moya
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramón 182 C, 20009 San Sebastián, Guipúzcoa, Spain
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Llop J, Marradi M, Jiang P, Gómez-Vallejo V, Baz Z, Echeverría M, Gao C, Moya SE. In vivo stability of protein coatings on poly lactic co glycolic nanoparticles. ACTA ACUST UNITED AC 2016. [DOI: 10.1557/adv.2016.450] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Diamanti E, Gregurec D, Gabriela R, Cuellar JL, Donath E, Moya SE. Lipid Layers on Polyelectrolyte Multilayers: Understanding Lipid-Polyelectrolyte Interactions and Applications on the Surface Engineering of Nanomaterials. J Nanosci Nanotechnol 2016; 16:5696-5700. [PMID: 27427617 DOI: 10.1166/jnn.2016.11752] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this manuscript we review work of our group on the assembly of lipid layers on top of polyelectrolyte multilayers (PEMs). The assembly of lipid layers with zwitterionic and charged lipids on PEMs is studied as a function of lipid and polyelectrolyte composition by the Quartz Crystal Microbalance. Polyelectrolyte lipid interactions are studied by means of Atomic Force Spectroscopy. We also show the coating of lipid layers for engineering different nanomaterials, i.e., carbon nanotubes and poly(lactic-co-glycolic) nanoparticles and how these can be used to decrease in vitro toxicity and to direct the intracellular localization of nanomaterials.
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