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Borri C, Centi S, Chioccioli S, Bogani P, Micheletti F, Gai M, Grandi P, Laschi S, Tona F, Barucci A, Zoppetti N, Pini R, Ratto F. Paper-based genetic assays with bioconjugated gold nanorods and an automated readout pipeline. Sci Rep 2022; 12:6223. [PMID: 35418671 PMCID: PMC9007582 DOI: 10.1038/s41598-022-10227-7] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 03/21/2022] [Indexed: 01/10/2023] Open
Abstract
Paper-based biosensors featuring immunoconjugated gold nanoparticles have gained extraordinary momentum in recent times as the platform of choice in key cases of field applications, including the so-called rapid antigen tests for SARS-CoV-2. Here, we propose a revision of this format, one that may leverage on the most recent advances in materials science and data processing. In particular, we target an amplifiable DNA rather than a protein analyte, and we replace gold nanospheres with anisotropic nanorods, which are intrinsically brighter by a factor of ~ 10, and multiplexable. By comparison with a gold-standard method for dot-blot readout with digoxigenin, we show that gold nanorods entail much faster and easier processing, at the cost of a higher limit of detection (from below 1 to 10 ppm in the case of plasmid DNA containing a target transgene, in our current setup). In addition, we test a complete workflow to acquire and process photographs of dot-blot membranes with custom-made hardware and regression tools, as a strategy to gain more analytical sensitivity and potential for quantification. A leave-one-out approach for training and validation with as few as 36 sample instances already improves the limit of detection reached by the naked eye by a factor around 2. Taken together, we conjecture that the synergistic combination of new materials and innovative tools for data processing may bring the analytical sensitivity of paper-based biosensors to approach the level of lab-grade molecular tests.
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Affiliation(s)
- Claudia Borri
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, 50019, Sesto Fiorentino, FI, Italy
| | - Sonia Centi
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, 50019, Sesto Fiorentino, FI, Italy.
| | - Sofia Chioccioli
- Dipartimento di Biologia, Università degli Studi di Firenze, 50019, Sesto Fiorentino, FI, Italy
| | - Patrizia Bogani
- Dipartimento di Biologia, Università degli Studi di Firenze, 50019, Sesto Fiorentino, FI, Italy
| | - Filippo Micheletti
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, 50019, Sesto Fiorentino, FI, Italy
| | - Marco Gai
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, 50019, Sesto Fiorentino, FI, Italy
| | - Paolo Grandi
- Laboratori Victoria S.R.L, 51100, Pistoia, Italy
| | - Serena Laschi
- Ecobioservices & Researches S.R.L, 50019, Sesto Fiorentino, FI, Italy
| | - Francesco Tona
- Ecobioservices & Researches S.R.L, 50019, Sesto Fiorentino, FI, Italy
| | - Andrea Barucci
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, 50019, Sesto Fiorentino, FI, Italy
| | - Nicola Zoppetti
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, 50019, Sesto Fiorentino, FI, Italy
| | - Roberto Pini
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, 50019, Sesto Fiorentino, FI, Italy
| | - Fulvio Ratto
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, 50019, Sesto Fiorentino, FI, Italy
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Borri C, Albino M, Innocenti C, Pineider F, Cavigli L, Centi S, Sangregorio C, Ratto F, Pini R. A bionic shuttle carrying multi-modular particles and holding tumor-tropic features. Mater Sci Eng C Mater Biol Appl 2020; 117:111338. [PMID: 32919687 DOI: 10.1016/j.msec.2020.111338] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/10/2020] [Accepted: 08/01/2020] [Indexed: 01/08/2023]
Abstract
The systemic delivery of composite nanoparticles remains an outstanding challenge in cancer nanomedicine, and the principal reason is a complex interplay of biological barriers. In this regard, adaptive cell transfer may represent an alternative solution to circumvent these barriers down to the tumor microenvironment. Here, tumor-tropic macrophages are proposed as a tool to draw and vehiculate modular nanoparticles integrating magnetic and plasmonic components. The end result is a bionic shuttle that exhibits a plasmonic band within the so-called therapeutic window arising from as much as 40 pg Au per cell, magnetization in the order of 150 pemu per cell, and more than 90% of the pristine viability and chemotactic activity of its biological component, until at least two days of preparation. Its synergistic combination of plasmonic, magnetic and tumor-tropic functions is assessed in vitro for applications as magnetic guidance or sorting, with a propulsion around 4 μm s-1 for a magnetic gradient of 0.8 T m-1, the optical hyperthermia of cancer, with stability of photothermal conversion to temperatures exceeding 50∘C, and the photoacoustic imaging of cancer under realistic conditions. These results collectively suggest that a bionic design may be a promising roadmap to reconcile the efforts for multifunctionality and targeted delivery, which are both key goals in nanomedicine.
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Affiliation(s)
- Claudia Borri
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, FI, Italy
| | - Martin Albino
- Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, FI, Italy
| | - Claudia Innocenti
- Istituto di Chimica dei Composti OrganoMetallici, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, (FI), Italy
| | - Francesco Pineider
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Lucia Cavigli
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, FI, Italy
| | - Sonia Centi
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, FI, Italy
| | - Claudio Sangregorio
- Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, FI, Italy; Istituto di Chimica dei Composti OrganoMetallici, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, (FI), Italy.
| | - Fulvio Ratto
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, FI, Italy.
| | - Roberto Pini
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, FI, Italy
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Falsini N, Calisi N, Roini G, Ristori A, Biccari F, Scardi P, Borri C, Caporali S, Vinattieri A. A new route for high quality nanometric films of inorganic halide perovskites. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202023807004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Successful deposition of CsPbX3 (X = Br, Cl) thin films (50-500 nm) on several kind of substrates has been realized by Radio-Frequency Magnetron Sputtering. The technique allows for high homogeneity of the samples on large areas (several cm2) not only in terms of morphology but also referring to the optical properties. In particular, high resolution (in space, spectrum and time) photoluminescence studies in a wide temperature range (10-300 K) reveal that the low inhomogeneous broadening comes from a submicron size disorder while no significant contribution arises from a micrometric or even larger disorder. Given the relevance of inorganic halide perovskites for innovative optoelectronic devices, our results prove the scalability of this technique. Moreover, the successful deposition on several different substrates open the route for an easy integration in multi-layered structures.
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Borri C, Calisi N, Galvanetto E, Falsini N, Biccari F, Vinattieri A, Cucinotta G, Caporali S. First Proof-of-Principle of Inorganic Lead Halide Perovskites Deposition by Magnetron-Sputtering. Nanomaterials (Basel) 2019; 10:nano10010060. [PMID: 31888001 PMCID: PMC7022632 DOI: 10.3390/nano10010060] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 11/11/2019] [Revised: 12/10/2019] [Accepted: 12/21/2019] [Indexed: 11/30/2022]
Abstract
The present work reports the application of RF-magnetron sputtering technique to realize CsPbBr3 70 nm thick films on glass substrate by means of a one-step procedure. The obtained films show highly uniform surface morphology and homogeneous thickness as evidenced by AFM and SEM investigations. XRD measurements demonstrate the presence of two phases: a dominant orthorhombic CsPbBr3 and a subordinate CsPb2Br5. Finally, XPS data reveals surface bromine depletion respect to the stoichiometrical CsPbBr3 composition, nevertheless photoluminescence spectroscopy results confirm the formation of a highly luminescent film. These preliminary results demonstrate that our approach could be of great relevance for easy fabrication of large area perovskite thin films. Future developments, based on this approach, may include the realization of multijunction solar cells and multicolor light emitting devices.
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Affiliation(s)
- Claudia Borri
- DIEF—Industrial Engineering Department, University of Florence, Via S. Marta 3, 50139 Florence, Italy; (C.B.); (N.C.); (E.G.)
- INSTM—Interuniversity National Consortium for Material Science and Technology, Via Giusti 9, 50121 Florence, Italy; (N.F.); (A.V.)
| | - Nicola Calisi
- DIEF—Industrial Engineering Department, University of Florence, Via S. Marta 3, 50139 Florence, Italy; (C.B.); (N.C.); (E.G.)
- INSTM—Interuniversity National Consortium for Material Science and Technology, Via Giusti 9, 50121 Florence, Italy; (N.F.); (A.V.)
| | - Emanuele Galvanetto
- DIEF—Industrial Engineering Department, University of Florence, Via S. Marta 3, 50139 Florence, Italy; (C.B.); (N.C.); (E.G.)
- INSTM—Interuniversity National Consortium for Material Science and Technology, Via Giusti 9, 50121 Florence, Italy; (N.F.); (A.V.)
| | - Naomi Falsini
- INSTM—Interuniversity National Consortium for Material Science and Technology, Via Giusti 9, 50121 Florence, Italy; (N.F.); (A.V.)
- Department of Physics and Astronomy, University of Florence, via G. Sansone 1, 50019 Sesto Fiorentino (FI), Italy;
| | - Francesco Biccari
- Department of Physics and Astronomy, University of Florence, via G. Sansone 1, 50019 Sesto Fiorentino (FI), Italy;
- LENS—European Laboratory for Non-Linear Spectroscopy, via Nello Carrara 1, I-50019 Sesto Fiorentino (FI), Italy
| | - Anna Vinattieri
- INSTM—Interuniversity National Consortium for Material Science and Technology, Via Giusti 9, 50121 Florence, Italy; (N.F.); (A.V.)
- Department of Physics and Astronomy, University of Florence, via G. Sansone 1, 50019 Sesto Fiorentino (FI), Italy;
- LENS—European Laboratory for Non-Linear Spectroscopy, via Nello Carrara 1, I-50019 Sesto Fiorentino (FI), Italy
- INFN—National Institute for Nuclear Physics, via G. Sansone 1, 50019 Sesto Fiorentino (FI), Italy
| | - Giuseppe Cucinotta
- Chemistry Department “U. Schiff”, University of Florence, via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy;
| | - Stefano Caporali
- DIEF—Industrial Engineering Department, University of Florence, Via S. Marta 3, 50139 Florence, Italy; (C.B.); (N.C.); (E.G.)
- INSTM—Interuniversity National Consortium for Material Science and Technology, Via Giusti 9, 50121 Florence, Italy; (N.F.); (A.V.)
- Correspondence: ; Tel.: +39-055-4573119
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Cavigli L, Centi S, Borri C, Tortoli P, Panettieri I, Streit I, Ciofini D, Magni G, Rossi F, Siano S, Ratto F, Pini R. 1064-nm-resonant gold nanorods for photoacoustic theranostics within permissible exposure limits. J Biophotonics 2019; 12:e201900082. [PMID: 31155855 DOI: 10.1002/jbio.201900082] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 05/03/2019] [Accepted: 05/30/2019] [Indexed: 05/07/2023]
Abstract
Therapeutic and diagnostic methods based on photomechanical effects are attracting much current attention in contexts as oncology, cardiology and vascular surgery, for such applications as photoacoustic imaging or microsurgery. Their underlying mechanism is the generation of ultrasound or cavitation from the interaction of short optical pulses with endogenous dyes or targeted contrast agents. Among the latter, gold nanorods are outstanding candidates, but their use has mainly been reported for photoacoustic imaging and photothermal treatments. Conversely, much less is still known about their value as a precision tool for photomechanical manipulations, such as to impart local damage with high spatial resolution through the expansion and collapse of microbubbles. Here, we address the feasibility of gold nanorods exhibiting a distribution of surface plasmon resonances between about 900 to above 1100 nm as a contrast agent for photoacoustic theranostics. After testing their cytotoxicity and cellular uptake, we discuss their photostability and use to mediate cavitation and the photomechanical destruction of targeted cells. We find that the choice of a plasmonic band peaking around 1064 nm is key to enhance the translational potential of this approach. With respect to the standard alternative of 800 nm, at 1064 nm, relevant regulations on optical exposure are less restrictive and the photonic technology is more mature.
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Affiliation(s)
- Lucia Cavigli
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Sonia Centi
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Claudia Borri
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Paolo Tortoli
- Dipartimento di Fisica e Astronomia, Università degli Studi di Firenze, Sesto Fiorentino, Italy
| | - Ilaria Panettieri
- Dipartimento di Ingegneria Meccanica e Aerospaziale, Politecnico di Torino, Torino, Italy
| | | | - Daniele Ciofini
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Giada Magni
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Francesca Rossi
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Salvatore Siano
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Fulvio Ratto
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Roberto Pini
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
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Ratto F, Cavigli L, Borri C, Centi S, Magni G, Mazzoni M, Pini R. Hybrid organosilicon/polyol phantom for photoacoustic imaging. Biomed Opt Express 2019; 10:3719-3730. [PMID: 31452970 PMCID: PMC6701555 DOI: 10.1364/boe.10.003719] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/17/2019] [Accepted: 05/18/2019] [Indexed: 05/15/2023]
Abstract
The rapid development of hardware and software for photoacoustic technologies is urging the establishment of dedicated tools for standardization and performance assessment. In particular, the fabrication of anatomical phantoms for photoacoustic imaging remains an open question, as current solutions have not yet gained unanimous support. Here, we propose that a hybrid material made of a water-in-oil emulsion of glycerol and polydimethylsiloxane may represent a versatile platform to host a broad taxonomy of hydrophobic and hydrophilic dyes and recapitulate the optical and acoustic features of bio tissue. For a full optical parameterization, we refer to Wróbel, et al. [ Biomed. Opt. Express7, 2088 (2016)], where this material was first presented for optical imaging. Instead, here, we complete the picture and find that its speed of sound and acoustic attenuation resemble those of pure polydimethylsiloxane, i.e. respectively 1150 ± 30 m/s and 3.5 ± 0.4 dB/(MHz·cm). We demonstrate its use under a commercial B-mode scanner and a home-made A-mode stage for photoacoustic analysis to retrieve the ground-truth encoded in a multilayer architecture containing indocyanine green, plasmonic particles and red blood cells. Finally, we verify the stability of its acoustic, optical and geometric features over a time span of three months.
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Affiliation(s)
- Fulvio Ratto
- Istituto di Fisica Applicata ‘Nello Carrara’ IFAC-CNR, Via Madonna del Piano, 10, 50019 Sesto Fiorentino (FI), Italy
| | - Lucia Cavigli
- Istituto di Fisica Applicata ‘Nello Carrara’ IFAC-CNR, Via Madonna del Piano, 10, 50019 Sesto Fiorentino (FI), Italy
| | - Claudia Borri
- Istituto di Fisica Applicata ‘Nello Carrara’ IFAC-CNR, Via Madonna del Piano, 10, 50019 Sesto Fiorentino (FI), Italy
| | - Sonia Centi
- Istituto di Fisica Applicata ‘Nello Carrara’ IFAC-CNR, Via Madonna del Piano, 10, 50019 Sesto Fiorentino (FI), Italy
| | - Giada Magni
- Istituto di Fisica Applicata ‘Nello Carrara’ IFAC-CNR, Via Madonna del Piano, 10, 50019 Sesto Fiorentino (FI), Italy
| | - Marina Mazzoni
- Istituto di Fisica Applicata ‘Nello Carrara’ IFAC-CNR, Via Madonna del Piano, 10, 50019 Sesto Fiorentino (FI), Italy
| | - Roberto Pini
- Istituto di Fisica Applicata ‘Nello Carrara’ IFAC-CNR, Via Madonna del Piano, 10, 50019 Sesto Fiorentino (FI), Italy
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Borri C, Centi S, Ratto F, Pini R. Polylysine as a functional biopolymer to couple gold nanorods to tumor-tropic cells. J Nanobiotechnology 2018; 16:50. [PMID: 29855304 PMCID: PMC5984317 DOI: 10.1186/s12951-018-0377-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 05/23/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The delivery of plasmonic particles, such as gold nanorods, to the tumor microenvironment has attracted much interest in biomedical optics for topical applications as the photoacoustic imaging and photothermal ablation of cancer. However, the systemic injection of free particles still crashes into a complexity of biological barriers, such as the reticuloendothelial system, that prevent their efficient biodistribution. In this context, the notion to exploit the inherent features of tumor-tropic cells for the creation of a Trojan horse is emerging as a plausible alternative. RESULTS We report on a convenient approach to load cationic gold nanorods into murine macrophages that exhibit chemotactic sensitivity to track gradients of inflammatory stimuli. In particular, we compare a new model of poly-L-lysine-coated particles against two alternatives of cationic moieties that we have presented elsewhere, i.e. a small quaternary ammonium compound and an arginine-rich cell-penetrating peptide. Murine macrophages that are exposed to poly-L-lysine-coated gold nanorods at a dosage of 400 µM Au for 24 h undertake efficient uptake, i.e. around 3 pg Au per cell, retain the majority of their cargo until 24 h post-treatment and maintain around 90% of their pristine viability, chemotactic and pro-inflammatory functions. CONCLUSIONS With respect to previous models of cationic coatings, poly-L-lysine is a competitive solution for the preparation of biological vehicles of gold nanorods, especially for applications that may require longer life span of the Trojan horse, say in the order of 24 h. This biopolymer combines the cost-effectiveness of small molecules and biocompatibility and efficiency of natural peptides and thus holds potential for translational developments.
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Affiliation(s)
- Claudia Borri
- Institute of Applied Physics ‘N. Carrara’, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
- Department of Experimental and Clinical Biomedical Sciences ‘M. Serio’, University of Florence, Largo Brambilla, 3, 50134 Florence, Italy
| | - Sonia Centi
- Institute of Applied Physics ‘N. Carrara’, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - Fulvio Ratto
- Institute of Applied Physics ‘N. Carrara’, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - Roberto Pini
- Institute of Applied Physics ‘N. Carrara’, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
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Lai S, Centi S, Borri C, Ratto F, Cavigli L, Micheletti F, Kemper B, Ketelhut S, Kozyreva T, Gonnelli L, Rossi F, Colagrande S, Pini R. A multifunctional organosilica cross-linker for the bio-conjugation of gold nanorods. Colloids Surf B Biointerfaces 2017; 157:174-181. [PMID: 28586730 DOI: 10.1016/j.colsurfb.2017.05.068] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 05/03/2017] [Accepted: 05/26/2017] [Indexed: 12/21/2022]
Abstract
We report on the use of organosilica shells to couple gold nanorods to functional peptides and modulate their physiochemical and biological profiles. In particular, we focus on the case of cell penetrating peptides, which are used to load tumor-tropic macrophages and implement an innovative drug delivery system for photothermal and photoacoustic applications. The presence of organosilica exerts subtle effects on multiple parameters of the particles, including their size, shape, electrokinetic potential, photostability, kinetics of endocytic uptake and cytotoxicity, which are investigated by the interplay of colorimetric methods and digital holographic microscopy. As a rule of thumb, as the thickness of organosilica increases from none to ∼30nm, we find an improvement of the photophysical performances at the expense of a deterioration of the biological parameters. Therefore, detailed engineering of the particles for a certain application will require a careful trade-off between photophysical and biological specifications.
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Affiliation(s)
- Sarah Lai
- Institute of Applied Physics, National Research Council of Italy, Sesto Fiorentino, Italy
| | - Sonia Centi
- Institute of Applied Physics, National Research Council of Italy, Sesto Fiorentino, Italy
| | - Claudia Borri
- Institute of Applied Physics, National Research Council of Italy, Sesto Fiorentino, Italy; Department of Experimental and Clinical Biomedical Science, University of Florence, Florence, Italy
| | - Fulvio Ratto
- Institute of Applied Physics, National Research Council of Italy, Sesto Fiorentino, Italy.
| | - Lucia Cavigli
- Institute of Applied Physics, National Research Council of Italy, Sesto Fiorentino, Italy
| | - Filippo Micheletti
- Institute of Applied Physics, National Research Council of Italy, Sesto Fiorentino, Italy
| | - Bjӧrn Kemper
- Biomedical Technology Center, University of Muenster, Muenster, Germany
| | - Steffi Ketelhut
- Biomedical Technology Center, University of Muenster, Muenster, Germany
| | | | | | - Francesca Rossi
- Institute of Applied Physics, National Research Council of Italy, Sesto Fiorentino, Italy
| | - Stefano Colagrande
- Department of Experimental and Clinical Biomedical Science, University of Florence, Florence, Italy
| | - Roberto Pini
- Institute of Applied Physics, National Research Council of Italy, Sesto Fiorentino, Italy
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Gagliardi M, Borri C. Polymer Nanoparticles as Smart Carriers for the Enhanced Release of Therapeutic Agents to the CNS. Curr Pharm Des 2017; 23:393-410. [DOI: 10.2174/1381612822666161027111542] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 10/21/2016] [Indexed: 11/22/2022]
Abstract
Background:
The brain is the most protected organ in the human body; its protective shield, relying on
a complex system of cells, proteins and transporters, prevents potentially harmful substances from entering the
brain from the bloodstream but, on the other hand, it also stops drugs administered via the systemic route. To
improve the efficacy of pharmacological treatments, targeted drug delivery by means of polymer nanoparticles is
a challenging but, at the same time, efficient strategy.
Methods:
Thanks to a highly multidisciplinary approach, several ways to overcome the brain protection have
provided effective solutions to treat a large number of diseases. Important advances in polymer science, together
with the development of novel techniques for nanocarrier preparation, and the discovery of novel targeting
ligands and molecules, allow a fine-tuning of size, shape, chemicophysical properties and surface chemistry of
functional particulate systems; it enables the improvement of the therapeutic performances for several drugs, also
toward districts that are difficult to be treated, such as the brain.
Conclusion:
This review focuses on the great strides made from scientists and doctors in the development of
polymer nano-sized drug delivery systems for brain diseases. Even though the optimal nanocarrier was not yet
discovered, important advances were made to strive for safer, performant and successful systems, with the expectation
to find soon better solutions to cure some still untreatable pathologies.
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Affiliation(s)
- Mariacristina Gagliardi
- Department of Multi-Scale Analysis of Materials, MUSAM, IMT School for Advanced Studies Lucca,, Italy
| | - Claudia Borri
- Multi-Scale Analysis of Material, MUSAM, IMT School for Advanced Studies Lucca, Lucca,, Italy
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Cavigli L, Tatini F, Borri C, Ratto F, Centi S, Cini A, Lelli B, Matteini P, Pini R. Preparation and Photoacoustic Analysis of Cellular Vehicles Containing Gold Nanorods. J Vis Exp 2016:53328. [PMID: 27167995 PMCID: PMC4942024 DOI: 10.3791/53328] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Gold nanorods are attractive for a range of biomedical applications, such as the photothermal ablation and the photoacoustic imaging of cancer, thanks to their intense optical absorbance in the near-infrared window, low cytotoxicity and potential to home into tumors. However, their delivery to tumors still remains an issue. An innovative approach consists of the exploitation of the tropism of tumor-associated macrophages that may be loaded with gold nanorods in vitro. Here, we describe the preparation and the photoacoustic inspection of cellular vehicles containing gold nanorods. PEGylated gold nanorods are modified with quaternary ammonium compounds, in order to achieve a cationic profile. On contact with murine macrophages in ordinary Petri dishes, these particles are found to undergo massive uptake into endocytic vesicles. Then these cells are embedded in biopolymeric hydrogels, which are used to verify that the stability of photoacoustic conversion of the particles is retained in their inclusion into cellular vehicles. We are confident that these results may provide new inspiration for the development of novel strategies to deliver plasmonic particles to tumors.
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Affiliation(s)
- Lucia Cavigli
- Institute of Applied Physics, Italian National Research Council
| | | | - Claudia Borri
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Firenze
| | - Fulvio Ratto
- Institute of Applied Physics, Italian National Research Council;
| | - Sonia Centi
- Institute of Applied Physics, Italian National Research Council
| | - Alberto Cini
- Department of Physics and Astronomy, University of Florence, Sesto Fiorentino
| | - Beatrice Lelli
- Department of Pharmacy and Biotechnology, University of Bologna
| | - Paolo Matteini
- Institute of Applied Physics, Italian National Research Council
| | - Roberto Pini
- Institute of Applied Physics, Italian National Research Council
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11
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Nardi C, Borri C, Regini F, Calistri L, Castellani A, Lorini C, Colagrande S. Metal and motion artifacts by cone beam computed tomography (CBCT) in dental and maxillofacial study. Radiol Med 2015; 120:618-26. [PMID: 25634792 DOI: 10.1007/s11547-015-0496-2] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 01/05/2015] [Indexed: 01/01/2023]
Abstract
OBJECTIVES This study aimed at evaluating incidence/degree of metal/motion artifacts and CT-dose-index in oral/maxillofacial examinations using Cone-Beam-CT. METHODS Interferences caused by metal and motion artifacts were evaluated in 500 patients aged from 6 to 81 years, in dental arches, maxillofacial and splanchocranium Cone-Beam-CT exams. The interferences was divided into four progressive degrees (G0-G3) related to the possibility to answer the clinical query. The parameters considered were field-of-view, scan time, patient's age, and anatomical area. Furthermore volumetric CT-dose-index was measured. RESULTS In the presence of metal artifacts the clinical query was always answered (G3 = 0). No artifacts (G0) were found in all cases when metal was beyond 5 cm from interest site and in 18.4% when metal was inside this distance. Beam hardening and photon starvation due to implants, restoration and orthodontic therapies achieved 56.2% G1 and 25.4% G2. Motion artifacts were more frequent in under ten (31.5%) and over sixty (82.2%), and in mandible analysis (inferior arch 59.5%, both arches 47.3%). Moreover, their incidence and intensity were influenced by scan time (49.1% at 36 s) but not by field-of-view. Mean volumetric CT-dose-index of all patients was mGy 9.11 (mGy 3.62, 5.78, 8.89, and 13.07 at 18, 24, 26, and 36 s, respectively). CONCLUSIONS In our series Cone-Beam-CT diagnostic evaluation was never inhibited by metal artifacts and only in 1.9% of the cases by motion artifacts, always with a very low CT-dose-index.
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Affiliation(s)
- Cosimo Nardi
- Department of Experimental and Clinical Biomedical Sciences Radiodiagnostic Unit n. 2, University of Florence-Azienda Ospedaliero-Universitaria Careggi, Largo Brambilla 3, 50134, Florence, Italy,
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12
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Banti S, Borri C, Ramacciotti D, Camilleri V, Montagnani M, Cargioli C, Oppo A, Ricciardulli S, Cirri C, Mistretta R, Nencioni E, Faraoni S, Cotugno B, Bacci O, Belli S, Mauri M. P-988 - The role of early screening in perinatal depression: preliminary data for the pnd-rescu ® II. Eur Psychiatry 2012. [DOI: 10.1016/s0924-9338(12)75155-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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13
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Ricciardulli S, Banti S, Borri C, Cortopassi S, Montagnani M, Ramacciotti D, Camilleri V, Mauri M. P-996 - Risk factors of depression and anxiety during pregnancy: maternal antenatal attachment. Eur Psychiatry 2012. [DOI: 10.1016/s0924-9338(12)75163-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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14
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Rambelli C, Montagnani MS, Oppo A, Banti S, Borri C, Cortopassi C, Ramacciotti D, Camilleri V, Mula M, Cassano GB, Mauri M. Panic disorder as a risk factor for post-partum depression: Results from the Perinatal Depression-Research & Screening Unit (PND-ReScU) study. J Affect Disord 2010; 122:139-43. [PMID: 19651446 DOI: 10.1016/j.jad.2009.07.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2009] [Revised: 07/02/2009] [Accepted: 07/02/2009] [Indexed: 12/26/2022]
Abstract
BACKGROUND Although the role of anxiety disorders on the development of Post-partum Depression (PPD) have already been studied in literature, that of individual anxiety disorders has not received specific attention. The aim of this study is to investigate the role of Panic Disorder (PD) and family history for PD as risk factors for PPD. METHODS Six hundred women were recruited in a prospective, observational study at the 3rd month of pregnancy and followed up until the 6th month after delivery. At baseline, risk factors for PPD, Axis-I disorders and family history for psychiatric disorders were assessed. We investigated minor and major depression (mMD) occurred at 1st, 3rd and 6th months post-partum. Logistic regression models were used to estimate the association between PD, family history for PD and PPD. RESULTS Forty women had mMD in the post-partum. PD during pregnancy (RR=4.25; 95%CI:1.48-12.19), a history of PD (RR 2.47; 95%CI:1.11-5.49) and family history for PD (RR=2.1; 95%CI:1.06-4.4) predicted PPD after adjusting for lifetime depression and risk factors for PPD. LIMITATIONS The response rate is moderately low, but it is similar to other studies. The drop out rate is slightly high, however the 600 women who completed the 6th month follow-up did not differ from the presence of PD at baseline. CONCLUSIONS PD is an independent risk factor for PPD, underscoring need to assess PD symptoms during pregnancy. Furthermore, PD represents an important risk factor for the development of PPD and should be routinely screened in order to develop specific preventive interventions.
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Affiliation(s)
- C Rambelli
- Department of Psychiatry, Neurobiology, Pharmacology and Biotechnology, School of Medicine, University of Pisa, Via Roma 67, 56100 Pisa, Italy.
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15
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Borri C, Mauri M, Banti S, Rambelli C, Ramacciotti D, Oppo A, Montagnani M, Camilleri V, Cortopassi S, Cianelli E, Ciberti A, Giorgi Mariani M, Cassano G. PW01-260 - Depression during pregnancy: comparison between pregnant depressed women and non pregnant depressed women. Eur Psychiatry 2010. [DOI: 10.1016/s0924-9338(10)71667-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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16
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Mauri M, Banti S, Borri C, Rambelli C, Ramacciotti D, Oppo A, Montagnani M, Camilleri V, Cortopassi S, Cianelli E, Ciberti A, Giorgi Mariani M, Cassano G. P02-387 - Depressive symptomatology in pregnancy detected with EPDS: the problem of false positive. Eur Psychiatry 2010. [DOI: 10.1016/s0924-9338(10)71389-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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17
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Banti S, Mauri M, Borri C, Rambelli C, Ramacciotti D, Oppo A, Montagnani M, Camilleri V, Cortopassi S, Cianelli E, Ciberti A, Giorgi Mariani M, Cassano G. P02-373 - Prevalence, incidence, recurrence and new onset of depression durin pregnancy. results from the perinatal depression-research & screening unit (PND-RESCU) study. Eur Psychiatry 2010. [DOI: 10.1016/s0924-9338(10)71375-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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18
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Mauri M, Rambelli C, Montagnani M, Camilleri V, Cortopassi S, Ramacciotti D, Banti S, Borri C, Annalisa O, Bettini A, Ricciardulli S, Giunti Y, Ciaponi B, Di Biase S. The Predictive Role of Anxiety Disorders on Depressive Phenomenology During Post-partum Period. Eur Psychiatry 2009. [DOI: 10.1016/s0924-9338(09)70602-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Aims:To investigate the predictive role of any specific (DSM-IV) Anxiety Disorders (AD) on depressive symptoms and Major or Minor Depressive Disorder (MDD, mDD) during early postpartum period.Method:Women (at the 12th-15th gestational week, N=1066) were recruited in the framework of the Program ‘Perinatal Depression - Research & Screening Unit (PND-ReScU)". Depressive symptoms were assessed by the Edinburgh Postnatal Depression Scale (EPDS), and Axis-I disorders (AD, MDD, mDD) were diagnosed with the Structured Clinical Interview for Axis-I Disorders (SCID-I).Results:Any current AD at baseline (3rd month of pregnancy) was detected in 231 (21.7%). Having at least one current AD, was associated with a greater likelihood of having MDD or mDD during the early postpartum period, even after the adjustment for the confounding factor of having a lifetime history of MDD (RR=3.86 95%CI 1.58-9.42).In particular, women affected by Obsessive Compulsive Disorder (N=17; 1.6%) or Panic Disorder (N=43; 4%) had at higher risk to develop depressive symptoms (EPDS≥13) during the postpartum period than women without these AD (RR=6.9 and 6.7 respectively). As for the risk of developing PPD, the strongest association was found for women with Panic Disorder (RR=7.6 95% CI 2.62-22.0).Conclusions:AD are associated with a greater likelihood to develop depressive symptoms and MDD or mDD during the early postpartum period. Women with current PD have the strongest risk to develop both MDD or mDD and depressive symptoms during early postpartum period compared to other anxiety disorders.
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Mauri M, Rambelli C, Montagnani M, Camilleri V, Cortopassi S, Ramacciotti D, Banti S, Borri C, Annalisa O, Bettini A, Ricciardulli S, Giunti Y, Ciaponi B, Di Biase S. The predictive Role of Anxiety Disorders on Depressive Phenomenology During Post-partum Period. Eur Psychiatry 2009. [DOI: 10.1016/s0924-9338(09)70765-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Aims:To investigate the predictive role of any specific (DSM-IV) Anxiety Disorders (AD) on depressive symptoms and Major or Minor Depressive Disorder (MDD, mDD) during early postpartum period.Method:Women (at the 12th-15th gestational week, N=1066) were recruited in the framework of the Program ‘Perinatal Depression - Research & Screening Unit (PND-ReScU)’. Depressive symptoms were assessed by the Edinburgh Postnatal Depression Scale (EPDS), and Axis-I disorders (AD, MDD, mDD) were diagnosed with the Structured Clinical Interview for Axis-I Disorders (SCID-I).Results:Any current AD at baseline (3rd month of pregnancy) was detected in 231 (21.7%). Having at least one current AD, was associated with a greater likelihood of having MDD or mDD during the early postpartum period, even after the adjustment for the confounding factor of having a lifetime history of MDD (RR=3.86 95%CI 1.58-9.42).In particular, women affected by Obsessive Compulsive Disorder (N=17; 1.6%) or Panic Disorder (N=43; 4%) had at higher risk to develop depressive symptoms (EPDS≥13) during the postpartum period than women without these AD (RR=6.9 and 6.7 respectively). As for the risk of developing PPD, the strongest association was found for women with Panic Disorder (RR=7.6 95% CI 2.62-22.0).Conclusions:AD are associated with a greater likelihood to develop depressive symptoms and MDD or mDD during the early postpartum period. Women with current PD have the strongest risk to develop both MDD or mDD and depressive symptoms during early postpartum period compared to other anxiety disorders.
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Bazzicalupi C, Bencini A, Bianchi A, Borri C, Danesi A, Garcia-España E, Giorgi C, Valtancoli B. Polyfunctional Recognition of Pyridinedicarboxylate Anions with Macrocyclic Polyamine Receptors Containing Heteroaromatic Groups. J Org Chem 2008; 73:8286-95. [DOI: 10.1021/jo801366w] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Carla Bazzicalupi
- Department of Chemistry, Polo Scientifico, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy, and Departamento de Quimica Inorgánica, Instituto de Ciencia Molecular, Universidad de Valencia, Valencia, Spain
| | - Andrea Bencini
- Department of Chemistry, Polo Scientifico, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy, and Departamento de Quimica Inorgánica, Instituto de Ciencia Molecular, Universidad de Valencia, Valencia, Spain
| | - Antonio Bianchi
- Department of Chemistry, Polo Scientifico, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy, and Departamento de Quimica Inorgánica, Instituto de Ciencia Molecular, Universidad de Valencia, Valencia, Spain
| | - Claudia Borri
- Department of Chemistry, Polo Scientifico, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy, and Departamento de Quimica Inorgánica, Instituto de Ciencia Molecular, Universidad de Valencia, Valencia, Spain
| | - Andrea Danesi
- Department of Chemistry, Polo Scientifico, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy, and Departamento de Quimica Inorgánica, Instituto de Ciencia Molecular, Universidad de Valencia, Valencia, Spain
| | - Enrique Garcia-España
- Department of Chemistry, Polo Scientifico, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy, and Departamento de Quimica Inorgánica, Instituto de Ciencia Molecular, Universidad de Valencia, Valencia, Spain
| | - Claudia Giorgi
- Department of Chemistry, Polo Scientifico, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy, and Departamento de Quimica Inorgánica, Instituto de Ciencia Molecular, Universidad de Valencia, Valencia, Spain
| | - Barbara Valtancoli
- Department of Chemistry, Polo Scientifico, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy, and Departamento de Quimica Inorgánica, Instituto de Ciencia Molecular, Universidad de Valencia, Valencia, Spain
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Oppo A, Mauri M, Rucci P, Banti S, Borri C, Rambelli C, Ramacciotti D, Montagnani M, Bettini A, Ricciardulli S, Montaresi S, Fui E, Cecconi L, Cassano G. The predictive validity of postpartum depression predictors inventory-revised (PDPI-R). Results from the PND-RESCU study. Eur Psychiatry 2008. [DOI: 10.1016/j.eurpsy.2008.01.516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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22
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Montalbetti L, Marinoni P, Lampertico P, Borri C, Candiani A, Brambilla-Pisoni G. [Primary lymphoma of the kidney. Description of a case and brief review of the literature]. MINERVA UROL NEFROL 1992; 44:249-51. [PMID: 1299004] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Stage IV disseminated non-Hodgkin lymphomas show kidney involvement with frequency; on the contrary, primary kidney lymphoma, as the sole presenting feature, is a very rare disease. Non-Hodgkin histological pattern, atypical symptoms, marked discrepancy between parenchymal involvement and impairment of renal function are the main features of this tumor. A case-report of a primary kidney non-Hodgkin lymphoma will be described; a short review of literature on this subject will be discussed.
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MESH Headings
- Aged
- Aged, 80 and over
- Combined Modality Therapy
- Female
- Humans
- Kidney Neoplasms/diagnosis
- Kidney Neoplasms/pathology
- Kidney Neoplasms/therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Leukemia, Lymphocytic, Chronic, B-Cell/therapy
- Lymphoma, Non-Hodgkin/diagnosis
- Lymphoma, Non-Hodgkin/pathology
- Lymphoma, Non-Hodgkin/therapy
- Nephrectomy
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Affiliation(s)
- L Montalbetti
- Unità Operativa di Medicina Generale II, USSL n. 8, Busto Arsizio, Varese
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Abstract
In comparing 101 psychotic patients subtyped by DSM-III criteria into paranoia, schizophrenia, schizoaffective, and affective disorders, we failed to distinguish them on the basis of delusional and hallucinatory experiences. These 'productive', 'positive' or 'irritative' symptoms--which the literature tends to link with temporolimbic dysfunction--did not appear specifically linked to schizophrenia. By contrast, 'negative' or 'deficit' symptoms--which the literature tends to relate to frontal lobe dysfunction--appeared more specific--especially for the disorganized subtype of schizophrenia. Although these data tend to support Bleulerian over Schneiderian conceptualization of schizophrenia, the heterogeneity of neuropsychological deficits implied in the negative symptom complexes limits the nosologic utility of the rubric of schizophrenia so defined.
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Affiliation(s)
- M Mauri
- Institute of Clinical Psychiatry, University of Pisa, Italy
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Montalbetti L, Borri C, Lampertico P, Candiani A, Buizza C, Berini M. [Lymphoma of the prostate: case reports and subject review]. Recenti Prog Med 1990; 81:666-9. [PMID: 2291013] [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] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Malignant lymphomas involving the prostate are rare whether as primary lymphoma or as secondary to generalized disease. Middle age, histotype prevalently non Hodgkin, intermediate and high grade of malignancy, symptoms of bladder outflow obstruction, diagnosis generally made after histological examination, severe prognosis are the most important features that result from literature review. The evaluation of therapeutic treatments is difficult as most reports do not include a sufficient number of cases. The Authors presenting two cases of lymphoma of the prostate point out the usefulness of radiotherapy since the prostate is usually a bulky seat of disease and suggest the combination with multiple drug chemotherapy for intermediate and high grade of malignancy and in advanced stages. The authors suggest that prognosis depends on histotype rather than on prostatic involvement of disease.
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Affiliation(s)
- L Montalbetti
- Divisione di Medicina generale II, Ospedale di Circolo, U.S.S.L. 8, Busto Arsizio
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Trotti G, Marinoni P, Borri C. [Normally functioning goiter: reflections on the clinical course. A 30-year follow up]. Minerva Med 1988; 79:961-4. [PMID: 3200473] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Among the 984 patients suffering from thyroid pathology observed in our Department between 1956 and 1964, we took into consideration the 184 patients who having been diagnosed as having a normally functioning goitre, were not given any treatment. We chose 88 patients living in our region, under 60 years old: 55 of these were included in our study. The long period involved--30 years--allowed us to check the natural course of this pathology, which was shown to be totally benign as well as frequent, and unconnected with other pathologies. Only in one case, at a distance of 20 years, did a neoplasia arise. The evaluation of the results justifies a decision of non-intervention, while recognising the paramount importance of a correct diagnosis, already possible with the diagnostic instruments then available.
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Affiliation(s)
- G Trotti
- U.S.S.L. n. 8 - Ospedale di Busto Arsizio, Varese
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Crescenzi V, Manzini G, Calzolari G, Borri C. Thermodynamics of fusion of poly-β-propiolactone and poly-ϵ-caprolactone. comparative analysis of the melting of aliphatic polylactone and polyester chains. Eur Polym J 1972. [DOI: 10.1016/0014-3057(72)90109-7] [Citation(s) in RCA: 531] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Borri C, Brückner S, Crescenzi V, Della Fortuna G, Mariano A, Scarazzato P. A study of the melting and of the crystallization kinetics of polypivalolactone. Eur Polym J 1971. [DOI: 10.1016/0014-3057(71)90020-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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