1
|
Guidotti G, Soccio M, Posati T, Sotgiu G, Tiboni M, Barbalinardo M, Valle F, Casettari L, Zamboni R, Lotti N, Aluigi A. Regenerated wool keratin-polybutylene succinate nanofibrous mats for drug delivery and cells culture. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109272] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
2
|
Natali M, Campana A, Posati T, Benvenuti E, Prescimone F, Ramirez DOS, Varesano A, Vineis C, Zamboni R, Muccini M, Aluigi A, Toffanin S. Engineering of keratin functionality for the realization of bendable all-biopolymeric micro-electrode array as humidity sensor. Biosens Bioelectron 2019; 141:111480. [PMID: 31272056 DOI: 10.1016/j.bios.2019.111480] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 06/15/2019] [Accepted: 06/25/2019] [Indexed: 12/22/2022]
Abstract
The technological quest for flexible devices to be interfaced with the biological world has driven the recent reinvention of bioderived polymers as multifunctional active and passive constituent elements for electronic and photonic devices to use in the biomedical field. Keratin is one of the most important structural proteins in nature to be used as biomaterial platform in view of the recently reported advances in the extraction and processing from hair and wool fibers. In this article we report for the first time the simultaneous use of naturally extracted keratin as both active ionic electrolyte for water ions sensing and as bendable and insoluble substrate into the same multielectrode array-based device. We implemented the multifunctional system exclusively made by keratin as a bendable sensor for monitoring the humidity flow. The enhancement of the functional and structural properties of keratin such as bendability and insolubility were obtained by unprecedented selective chemical doping. The mechanisms at the basis of the sensing of humidity in the device were investigated by cyclic voltammetry and rationalized by reversible binding and extraction of water ions from the volume of the keratin active layer, while the figures of merit of the biopolymer such as the ionic conductivity and relaxation time were determined by means of electrical impedance and dielectric relaxation spectroscopy. A reliable linear correlation between the controlled-humidity level and the amperometric output signal together with the assessment on measure variance are demonstrated. Collectively, the fine-tuned ionic-electrical characterization and the validation in controlled conditions of the free-standing insoluble all-keratin made microelectrode array ionic sensor pave the way for the effective use of keratin biopolymer in wearable or edible electronics where conformability, reliability and biocompatibility are key-enabling features.
Collapse
Affiliation(s)
- M Natali
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), Via P. Gobetti 101, 40129, Bologna, Italy.
| | - A Campana
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), Via P. Gobetti 101, 40129, Bologna, Italy
| | - T Posati
- Consiglio Nazionale delle Ricerche (CNR), Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Via P. Gobetti 101, 40129, Bologna, Italy
| | - E Benvenuti
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), Via P. Gobetti 101, 40129, Bologna, Italy
| | - F Prescimone
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), Via P. Gobetti 101, 40129, Bologna, Italy
| | - D O Sanchez Ramirez
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Sistemi e Tecnologie Industriali Intelligenti per il Manifatturiero Avanzato (STIIMA), Corso Giuseppe Pella 16, 13900, Biella, Italy
| | - A Varesano
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Sistemi e Tecnologie Industriali Intelligenti per il Manifatturiero Avanzato (STIIMA), Corso Giuseppe Pella 16, 13900, Biella, Italy
| | - C Vineis
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Sistemi e Tecnologie Industriali Intelligenti per il Manifatturiero Avanzato (STIIMA), Corso Giuseppe Pella 16, 13900, Biella, Italy
| | - R Zamboni
- Consiglio Nazionale delle Ricerche (CNR), Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Via P. Gobetti 101, 40129, Bologna, Italy
| | - M Muccini
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), Via P. Gobetti 101, 40129, Bologna, Italy
| | - A Aluigi
- Consiglio Nazionale delle Ricerche (CNR), Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Via P. Gobetti 101, 40129, Bologna, Italy
| | - S Toffanin
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), Via P. Gobetti 101, 40129, Bologna, Italy.
| |
Collapse
|
3
|
Aluigi A, Sotgiu G, Ferroni C, Duchi S, Lucarelli E, Martini C, Posati T, Guerrini A, Ballestri M, Corticelli F, Varchi G. Chlorin e6 keratin nanoparticles for photodynamic anticancer therapy. RSC Adv 2016. [DOI: 10.1039/c6ra04208b] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Chlorin e6-conjugated keratin nanoparticles were obtained and their effectiveness as carriers for cancer photodynamic therapy was demonstratedin vitro.
Collapse
Affiliation(s)
- A. Aluigi
- Institute of Organic Synthesis and Photoreactivity – Italian National Research Council
- 40129 Bologna
- Italy
| | - G. Sotgiu
- Institute of Organic Synthesis and Photoreactivity – Italian National Research Council
- 40129 Bologna
- Italy
| | - C. Ferroni
- Institute of Organic Synthesis and Photoreactivity – Italian National Research Council
- 40129 Bologna
- Italy
| | - S. Duchi
- Osteoarticular Regeneration Laboratory
- Rizzoli Orthopaedic Institute
- 40136 Bologna
- Italy
| | - E. Lucarelli
- Osteoarticular Regeneration Laboratory
- Rizzoli Orthopaedic Institute
- 40136 Bologna
- Italy
| | - C. Martini
- Institute of Organic Synthesis and Photoreactivity – Italian National Research Council
- 40129 Bologna
- Italy
| | - T. Posati
- Institute of Organic Synthesis and Photoreactivity – Italian National Research Council
- 40129 Bologna
- Italy
| | - A. Guerrini
- Institute of Organic Synthesis and Photoreactivity – Italian National Research Council
- 40129 Bologna
- Italy
| | - M. Ballestri
- Institute of Organic Synthesis and Photoreactivity – Italian National Research Council
- 40129 Bologna
- Italy
| | - F. Corticelli
- Institute for Microelectronics and Microsystems
- National Research Council
- 40129 Bologna
- Italy
| | - G. Varchi
- Institute of Organic Synthesis and Photoreactivity – Italian National Research Council
- 40129 Bologna
- Italy
| |
Collapse
|
4
|
Fortunati E, Aluigi A, Armentano I, Morena F, Emiliani C, Martino S, Santulli C, Torre L, Kenny JM, Puglia D. Keratins extracted from Merino wool and Brown Alpaca fibres: thermal, mechanical and biological properties of PLLA based biocomposites. Mater Sci Eng C Mater Biol Appl 2014; 47:394-406. [PMID: 25492212 DOI: 10.1016/j.msec.2014.11.007] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 09/25/2014] [Accepted: 11/05/2014] [Indexed: 01/08/2023]
Abstract
Keratins extracted from Merino wool (KM) and Brown Alpaca fibres (KA) by sulphitolysis and commercial hydrolyzed keratins (KH) were used as fillers in poly(l-lactic) acid based biocomposites processed by solvent casting in chloroform. Different contents (1 wt.% and 5 wt.%) of keratins were considered and the morphological, thermal, mechanical, chemical and biological behaviours of the developed PLLA biocomposites were investigated. The results confirmed that surface morphologies of biocomposites revealed specific round-like surface topography function of different microsized keratin particles in different weight contents, such as the analysis of bulk morphologies which confirmed a phase adhesion strictly dependent by the keratin source. Transparency and thermal responses were deeply affected by the presence of the different keratins and their interaction with the PLLA matrix. Tensile test results underlined the possibility to modulate the mechanical behaviour of PLLA selecting the keratin type and content in order to influence positively the elastic and/or plastic response. It was demonstrated that surface characteristics of PLLA/KA systems also influenced the bovine serum albumin adsorption, moreover PLLA and PLLA biocomposites based on different kinds of keratins supported the culture of human bone-marrow mesenchymal stem cells, indicating that these biocomposites could be useful materials for medical applications.
Collapse
Affiliation(s)
- E Fortunati
- Materials Engineering Center, UdR INSTM, University of Perugia, Strada di Pentima 4, 05100 Terni, Italy
| | - A Aluigi
- CNR-ISOF, Institute of Organic Synthesis and Photoreactivity, Via P. Gobetti, 101-40129 Bologna, Italy
| | - I Armentano
- Materials Engineering Center, UdR INSTM, University of Perugia, Strada di Pentima 4, 05100 Terni, Italy
| | - F Morena
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Unit, University of Perugia, Via del Giochetto, 06126 Perugia, Italy
| | - C Emiliani
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Unit, University of Perugia, Via del Giochetto, 06126 Perugia, Italy
| | - S Martino
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Unit, University of Perugia, Via del Giochetto, 06126 Perugia, Italy
| | - C Santulli
- University of Camerino, School of Architecture and Design, V.le della Rimembranza, 63100 Ascoli Piceno, Italy
| | - L Torre
- Materials Engineering Center, UdR INSTM, University of Perugia, Strada di Pentima 4, 05100 Terni, Italy
| | - J M Kenny
- Materials Engineering Center, UdR INSTM, University of Perugia, Strada di Pentima 4, 05100 Terni, Italy
| | - D Puglia
- Materials Engineering Center, UdR INSTM, University of Perugia, Strada di Pentima 4, 05100 Terni, Italy.
| |
Collapse
|
5
|
Aluigi A, Rombaldoni F, Tonetti C, Jannoke L. Study of Methylene Blue adsorption on keratin nanofibrous membranes. J Hazard Mater 2014; 268:156-165. [PMID: 24491440 DOI: 10.1016/j.jhazmat.2014.01.012] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 11/22/2013] [Accepted: 01/08/2014] [Indexed: 06/03/2023]
Abstract
In this work, keratin nanofibrous membranes (mean diameter of about 220nm) were prepared by electrospinning and tested as adsorbents for Methylene Blue through batch adsorption tests. The adsorption capacity of the membranes was evaluated as a function of initial dye concentration, pH, adsorbent dosage, time and temperature. The adsorption capacity increased with increasing the initial dye concentration and pH, while it decreased with increasing the adsorbent dosage and temperature, indicating an exothermic process. The adsorption results indicated that the Langmuir isotherm fitted the experimental data better than the Freundlich and Temkin isotherm models. A mean free energy evaluated through the Dubinin-Radushkevich model of about 16kJmol(-1), indicated a chemisorption process which occurred by ion exchange. The kinetic data were found to fit the pseudo-second-order model better than the pseudo-first-order model. The obtained results suggest that keratin nanofibrous membranes could be promising candidates as dye adsorption filters.
Collapse
Affiliation(s)
- A Aluigi
- CNR-ISOF, National Research Council-Institute of Organic Synthesis and Photoreactivity, Via P. Gobetti, 101, 40129 Bologna, Italy.
| | - F Rombaldoni
- CNR-ISMAC, National Research Council-Institute for Macromolecular Studies, C. so G. Pella, 16, 13900 Biella, Italy
| | - C Tonetti
- CNR-ISMAC, National Research Council-Institute for Macromolecular Studies, C. so G. Pella, 16, 13900 Biella, Italy
| | - L Jannoke
- Politecnico di Torino, Department of Materials Science and Chemical Engineering, C.so Duca degli Abruzzi 24, 10129 Torino, Italy
| |
Collapse
|
6
|
Affiliation(s)
- F. Cilurzo
- Department of Pharmaceutical Sciences; Università degli Studi di Milano; Via G. Colombo 71-20133 Milan Italy
| | - F. Selmin
- Department of Pharmaceutical Sciences; Università degli Studi di Milano; Via G. Colombo 71-20133 Milan Italy
| | - A. Aluigi
- Consiglio Nazionale delle Richerche-Instituto per lo Studio delle Macromolecole; Corso G. Pella 16-13900 Biella Italy
| | - S. Bellosta
- Department of Pharmacological and Biomolecular Sciences; Università degli Studi di Milano; Via Balzaretti 9-20133 Milan Italy
| |
Collapse
|
7
|
|
8
|
Aluigi A, Zoccola M, Vineis C, Tonin C, Ferrero F, Canetti M. Study on the structure and properties of wool keratin regenerated from formic acid. Int J Biol Macromol 2007; 41:266-73. [PMID: 17467791 DOI: 10.1016/j.ijbiomac.2007.03.002] [Citation(s) in RCA: 128] [Impact Index Per Article: 7.5] [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: 02/21/2007] [Revised: 03/09/2007] [Accepted: 03/09/2007] [Indexed: 11/15/2022]
Abstract
Structural characteristics of keratin regenerated from water (KW) and from formic (KF) acid solutions were compared. Amino acid composition and molecular weight distribution of KW and KF samples were studied by high performance liquid chromatography (HPLC) and SDS-PAGE electrophoresis. Turbidity measurement showed that keratin dissolved in formic acid forms transparent and stable solutions and no flocculation occurs. In addition, because of its good solvation properties, studied by viscosity measurements, formic acid can be used as a co-solvent to prepare keratin-based blend solutions. Structural studies carried out by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) and near infrared (NIR) suggest that formic acid stabilizes the beta-sheet structure. Thermogravimetric analysis (TGA) reveals a higher thermal stability of keratin regenerated from formic acid with respect to keratin regenerated from water.
Collapse
Affiliation(s)
- A Aluigi
- CNR-ISMAC, Institute for Macromolecular Studies, C.so G. Pella 16, 13900 Biella, Italy
| | | | | | | | | | | |
Collapse
|
9
|
Aluigi A, Varesano A, Montarsolo A, Vineis C, Ferrero F, Mazzuchetti G, Tonin C. Electrospinning of keratin/poly(ethylene oxide)blend nanofibers. J Appl Polym Sci 2007. [DOI: 10.1002/app.25623] [Citation(s) in RCA: 106] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
10
|
Aluigi A, Greco AG. [Clinical considerations on 2 cases of secondary abdominal pregnancy]. Minerva Ginecol 1976; 28:370-6. [PMID: 1018819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
11
|
Aluigi A. [New method for ligation of the umbilical cord]. Minerva Ginecol 1975; 27:67-70. [PMID: 1187054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
12
|
Zucchini C, Savi J, Pierfederici P, Aluigi A. [Cesarean section in the Maternity Hospital of Bologna during the years 1958 to 1967. Maternal prognosis; fetal prognosis; cesarean section in the pluripara; repeated cesarean section; demolitory cesarean section. II]. Minerva Ginecol 1973; 25:23-32. [PMID: 4696913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
13
|
Aluigi A. [Evaluation of the effects of psychophysical preparation for labor in the Ospedale di Maternità of Bologna]. Attual Ostet Ginecol 1968; 14:643-71. [PMID: 5754094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
14
|
Aluigi A. [Methods of recording and morphological characteristics of the fetal ECG and phonocardiogram]. Attual Ostet Ginecol 1968; 14:523-64. [PMID: 5738123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
15
|
Golfieri G, Vianello A, Buzzi F, Aluigi A. [Congenital hip dysplasia in the newborn: diagnostics and prophylactic therapy]. Clin Pediatr (Bologna) 1968; 50:136-42. [PMID: 5737084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
16
|
Aluigi A. [Electrophonocardiography in the diagnosis of fetal vitality]. Arch Ostet Ginecol 1967; 72:461-87. [PMID: 5606844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
17
|
Aluigi A. [The diethylaminoethylamide of the monoethylic ester of phenylethylmalonic acid in the treatment of dynamic dystocias of the dilating period]. Attual Ostet Ginecol 1966; 12:699-714. [PMID: 6011543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
18
|
Aluigi A. [Specific and aspecific cervico-vaginitis. Diagnostic aspects and new therapeutic trends]. Minerva Ginecol 1966; 18:913-8. [PMID: 5299872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
19
|
Aluigi A. [Ovarian fibroma. (Anatomo-clinical contribution)]. Minerva Ginecol 1966; 18:305-10. [PMID: 5919146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
20
|
Aluigi A. [Histo-morphological aspects of the guinea pig ovary after administration of drugs acting on the autonomic nervous system. Experimental contribution]. Minerva Ginecol 1965; 17:1009-14. [PMID: 5880748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|