Ignacio A. Rivero Espejel, M. Ávila-Cossío, Victor García-González
{"title":"Fabrication of a Reactive Functionalized Microfilm with Aromatic Amines Applied to the Growth of Langerhans Cells","authors":"Ignacio A. Rivero Espejel, M. Ávila-Cossío, Victor García-González","doi":"10.29356/jmcs.v68i1.2081","DOIUrl":null,"url":null,"abstract":"This study reports the synthesis of ultrathin polymeric films through layer-by-layer deposition and covalent cross-linking of poly(2-vinyl-4,4'-dimethylazlactone) and branched poly (ethylene imine) (PEI) which were functionalized with aromatic amines that encompass anilines. To assess the effect of these aromatics molecules on the adhesion and proliferation of Langerhans β-cells, we prepared 35 bilayers of unfunctionalized and functionalized films with aromatic amines, which were characterized in terms of their physical, chemical, and biological properties by a battery of experimental techniques including 1H and 13C, NMR, mass spectrometry, attenuated total reflectance Fourier transform infrared spectroscopy, field emission scanning electron microscopy and cell adhesion and staining. The films were nanometric, transparent, resistant to manipulation, chemically reactive, and highly cytocompatible. We demonstrated that films functionalized with aromatic molecules support the attachment and growth of in vitro Langerhans β-cells. This study provides the basis for a general approach to designing and functionalizing ultrathin films that promote cell growth on surfaces of interest for investigation in cell biology studies and a broad range of other biomedical applications. Resumen. En este estudio se describe la síntesis de películas poliméricas ultrafinas mediante la técnica de capa por capa y la reticulación covalente de poli(2-vinil-4,4'-dimetilazlactona) y poli etilenimina (PEI) ramificado y, se funcionalizaron con aminas aromáticas que engloba las anilinas. Para evaluar el efecto de estas moléculas aromáticas en la adhesión y proliferación de las células β de Langerhans, se prepararon películas de 35 bicapas y se funcionalizaron con aminas aromáticas; se caracterizaron en términos de sus propiedades físicas, químicas y biológicas mediante una serie de técnicas experimentales que incluyeron 1H y 13C, RMN, espectrometría de masas, espectroscopia de infrarrojo por transformada de Fourier, microscopía electrónica de barrido por emisión de campo y tinción celular. En general, las películas fueron nanométricas, transparentes, resistentes a la manipulación, químicamente reactivas y altamente citocompatibles. Se demostró, además, que las películas funcionalizadas con moléculas aromáticas favorecen la adhesión y el crecimiento de células β in vitro. Este estudio establece las bases de un enfoque general para diseñar y funcionalizar películas ultrafinas, que promuevan el crecimiento celular en superficies de interés, para la investigación en estudios de biología celular y una gama amplia de aplicaciones biomédicas potenciales.","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.29356/jmcs.v68i1.2081","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
This study reports the synthesis of ultrathin polymeric films through layer-by-layer deposition and covalent cross-linking of poly(2-vinyl-4,4'-dimethylazlactone) and branched poly (ethylene imine) (PEI) which were functionalized with aromatic amines that encompass anilines. To assess the effect of these aromatics molecules on the adhesion and proliferation of Langerhans β-cells, we prepared 35 bilayers of unfunctionalized and functionalized films with aromatic amines, which were characterized in terms of their physical, chemical, and biological properties by a battery of experimental techniques including 1H and 13C, NMR, mass spectrometry, attenuated total reflectance Fourier transform infrared spectroscopy, field emission scanning electron microscopy and cell adhesion and staining. The films were nanometric, transparent, resistant to manipulation, chemically reactive, and highly cytocompatible. We demonstrated that films functionalized with aromatic molecules support the attachment and growth of in vitro Langerhans β-cells. This study provides the basis for a general approach to designing and functionalizing ultrathin films that promote cell growth on surfaces of interest for investigation in cell biology studies and a broad range of other biomedical applications. Resumen. En este estudio se describe la síntesis de películas poliméricas ultrafinas mediante la técnica de capa por capa y la reticulación covalente de poli(2-vinil-4,4'-dimetilazlactona) y poli etilenimina (PEI) ramificado y, se funcionalizaron con aminas aromáticas que engloba las anilinas. Para evaluar el efecto de estas moléculas aromáticas en la adhesión y proliferación de las células β de Langerhans, se prepararon películas de 35 bicapas y se funcionalizaron con aminas aromáticas; se caracterizaron en términos de sus propiedades físicas, químicas y biológicas mediante una serie de técnicas experimentales que incluyeron 1H y 13C, RMN, espectrometría de masas, espectroscopia de infrarrojo por transformada de Fourier, microscopía electrónica de barrido por emisión de campo y tinción celular. En general, las películas fueron nanométricas, transparentes, resistentes a la manipulación, químicamente reactivas y altamente citocompatibles. Se demostró, además, que las películas funcionalizadas con moléculas aromáticas favorecen la adhesión y el crecimiento de células β in vitro. Este estudio establece las bases de un enfoque general para diseñar y funcionalizar películas ultrafinas, que promuevan el crecimiento celular en superficies de interés, para la investigación en estudios de biología celular y una gama amplia de aplicaciones biomédicas potenciales.
期刊介绍:
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.