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Pallotta A, Clarot I, Beurton J, Creusot B, Chaigneau T, Tu A, Lavalle P, Boudier A. Analytical strategy for studying the formation and stability of multilayered films containing gold nanoparticles. Anal Bioanal Chem 2021; 413:1473-1483. [PMID: 33495848 DOI: 10.1007/s00216-020-03113-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 12/02/2020] [Accepted: 12/07/2020] [Indexed: 11/29/2022]
Abstract
The design of layer-by-layer (LbL) polyelectrolyte films including nanoparticles is a growing field of innovation in a wide range of biomedical applications. Gold nanoparticles (AuNPs) are very attractive for further biomolecule coupling to induce a pharmacological effect. Nanostructured LbL films coupled with such metallic species show properties that depend on the conditions of construction, i.e. the polymer nature and dissolution buffer. Tripartite LbL films (polycation, AuNP, and polyanion) were evaluated using two different polycationic polymers (poly(allylamine hydrochloride) (PAH), poly(ethylene imine) (PEI)) and various medium conditions (salts, i.e. phosphate, Tris or Tris-NaCl buffers, and concentration). AuNP incorporation and film stability were analysed by visible spectrophotometry, capillary zone electrophoresis, a quartz crystal microbalance, and high-performance liquid chromatography. The ideal compromise between AuNP loading and film stability was obtained using PAH prepared in Tris-NaCl buffer (0.01-0.15 M). This condition allowed the formation of a LbL film that was more stable than the film with PEI and provided an AuNP quantity that was 4.8 times greater than that of the PAH-PBS-built film. In conclusion, this work presents an analytical strategy for the characterization of nanostructured multilayer films and optimization of LbL films enriched with AuNPs to design biomedical device coatings.
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Affiliation(s)
| | - Igor Clarot
- Université de Lorraine, CITHEFOR, 54000, Nancy, France
| | - Jordan Beurton
- Université de Lorraine, CITHEFOR, 54000, Nancy, France.,Institut National de la Santé et de la Recherche Médicale, INSERM Unité 1121, 11 rue Humann, 67085, Strasbourg Cedex, France
| | | | | | - Annie Tu
- Institut National de la Santé et de la Recherche Médicale, INSERM Unité 1121, 11 rue Humann, 67085, Strasbourg Cedex, France.,Faculté de Chirurgie Dentaire, Université de Strasbourg, 8 rue Sainte Elisabeth, 67000, Strasbourg, France
| | - Philippe Lavalle
- Institut National de la Santé et de la Recherche Médicale, INSERM Unité 1121, 11 rue Humann, 67085, Strasbourg Cedex, France.,Faculté de Chirurgie Dentaire, Université de Strasbourg, 8 rue Sainte Elisabeth, 67000, Strasbourg, France
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Riesgo G, Elbaile L, Carrizo J, Crespo RD, García MÁ, Torres Y, García JÁ. Villari Effect at Low Strain in Magnetoactive Materials. MATERIALS 2020; 13:ma13112472. [PMID: 32485799 PMCID: PMC7321407 DOI: 10.3390/ma13112472] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/23/2020] [Accepted: 05/26/2020] [Indexed: 11/16/2022]
Abstract
Magnetic composites of soft magnetic FeGa particles embedded in a silicone matrix have been synthesized. The Villari effect has been studied depending on the size and concentration of the particles and on the magnetic state of the composite. The results indicate a decrease in the Villari effect when the concentration of the magnetic particles increases. These results suggest a relationship between the Villari effect and the mechanical properties of the composites. The Young’s modulus of the composites has been obtained by microindentation and their values related to the intensity and slope of the Villari signals. The results are explained on the basis that the reduction in the cross section of the composite when submitted to stress is the main origin of the variation of the magnetic flux in the Villari effect in this kind of composite. It has also been obtained that the magnetic state of the composite plays an important role in the Villari signal. When the magnetization of the composite is greater, the magnetic flux across the composite is greater too and, so, the same reduction in the cross section originates a greater Villari signal.
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Affiliation(s)
- Graciela Riesgo
- Centro de Seguridad Marítima Integral Jovellanos, Camín del Centro de Salvamento n 279, 33393 Gijón, Spain;
| | - Laura Elbaile
- Departamento de Física, Universidad de Oviedo, c/Calvo Sotelo s/n, 33007 Oviedo, Spain; (L.E.); (J.C.); (R.D.C.); (J.Á.G.)
| | - Javier Carrizo
- Departamento de Física, Universidad de Oviedo, c/Calvo Sotelo s/n, 33007 Oviedo, Spain; (L.E.); (J.C.); (R.D.C.); (J.Á.G.)
| | - Rosario Díaz Crespo
- Departamento de Física, Universidad de Oviedo, c/Calvo Sotelo s/n, 33007 Oviedo, Spain; (L.E.); (J.C.); (R.D.C.); (J.Á.G.)
| | - María Ángeles García
- Departamento de Ciencia de los Materiales, Universidad de Oviedo, c/Independencia n 13, 33004 Oviedo, Spain;
| | - Yadir Torres
- Departamento de Ingeniería y Ciencia de los Materiales y el Transporte, Universidad de Sevilla, 41011 Sevilla, Spain
- Correspondence: ; Tel.: +34-954482279
| | - José Ángel García
- Departamento de Física, Universidad de Oviedo, c/Calvo Sotelo s/n, 33007 Oviedo, Spain; (L.E.); (J.C.); (R.D.C.); (J.Á.G.)
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Jia H, Gu SY, Chang K. 3D printed self-expandable vascular stents from biodegradable shape memory polymer. ADVANCES IN POLYMER TECHNOLOGY 2018. [DOI: 10.1002/adv.22091] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Han Jia
- Department of Polymeric Materials; School of Materials Science and Engineering; Tongji University; Shanghai China
| | - Shu-Ying Gu
- Department of Polymeric Materials; School of Materials Science and Engineering; Tongji University; Shanghai China
- Key Laboratory of Advanced Civil Engineering Materials; Ministry of Education; Tongji University; Shanghai China
| | - Kun Chang
- Department of Polymeric Materials; School of Materials Science and Engineering; Tongji University; Shanghai China
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Goganian AM, Hamishehkar H, Arsalani N, Khiabani HK. Microwave-Promoted Synthesis of Smart Superporous Hydrogel for the Development of Gastroretentive Drug Delivery System. ADVANCES IN POLYMER TECHNOLOGY 2014. [DOI: 10.1002/adv.21490] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Amir Mohammad Goganian
- Research Laboratory of Polymer, Department of Organic and Biochemistry; Faculty of Chemistry, University of Tabriz; Tabriz Iran
| | - Hamed Hamishehkar
- Drug Applied Research Center; Tabriz University of Medical Sciences; Tabriz Iran
| | - Nasser Arsalani
- Research Laboratory of Polymer, Department of Organic and Biochemistry; Faculty of Chemistry, University of Tabriz; Tabriz Iran
| | - Hanie Khaksar Khiabani
- Research Laboratory of Polymer, Department of Organic and Biochemistry; Faculty of Chemistry, University of Tabriz; Tabriz Iran
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