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Martin J, Wehbi M, Echalier C, Hunger S, Bethry A, Garric X, Pinese C, Martinez J, Vezenkov L, Subra G, Mehdi A. Direct Synthesis of Peptide-Containing Silicones: A New Way to Bioactive Materials. Chemistry 2020; 26:12839-12845. [PMID: 32516440 DOI: 10.1002/chem.202001571] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/26/2020] [Indexed: 11/09/2022]
Abstract
A simple and efficient way to synthesize peptide-containing silicone materials is described. Silicone oils containing a chosen ratio of bioactive peptide sequences were prepared by acid-catalyzed copolymerization of dichlorodimethylsilane, hybrid dichloromethyl peptidosilane, and Si(vinyl)- or SiH-functionalized monomers. Functionalized silicone oils were first obtained and then, after hydrosilylation cross-linking, bioactive polydimethylsiloxane (PDMS)-based materials were straightforwardly obtained. The introduction of an antibacterial peptide yielded PDMS materials showing activity against Staphylococcus aureus. PDMS containing RGD ligands showed improved cell-adhesion properties. This generic method was fully compatible with the stability of peptides and thus opened the way to the synthesis of a wide range of biologically active silicones.
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Affiliation(s)
- Julie Martin
- CNRS, ENSCM, ICGM Univ. Montpellier, 34095, Montpellier, France.,CNRS, ENSCM, IBMM Univ. Montpellier, 34095, Montpellier, France
| | - Mohammad Wehbi
- CNRS, ENSCM, ICGM Univ. Montpellier, 34095, Montpellier, France
| | - Cécile Echalier
- CNRS, ENSCM, ICGM Univ. Montpellier, 34095, Montpellier, France.,CNRS, ENSCM, IBMM Univ. Montpellier, 34095, Montpellier, France
| | - Sylvie Hunger
- CNRS, ENSCM, IBMM Univ. Montpellier, 34095, Montpellier, France
| | - Audrey Bethry
- CNRS, ENSCM, IBMM Univ. Montpellier, 34095, Montpellier, France
| | - Xavier Garric
- CNRS, ENSCM, IBMM Univ. Montpellier, 34095, Montpellier, France
| | - Coline Pinese
- CNRS, ENSCM, IBMM Univ. Montpellier, 34095, Montpellier, France
| | - Jean Martinez
- CNRS, ENSCM, IBMM Univ. Montpellier, 34095, Montpellier, France
| | | | - Gilles Subra
- CNRS, ENSCM, IBMM Univ. Montpellier, 34095, Montpellier, France
| | - Ahmad Mehdi
- CNRS, ENSCM, ICGM Univ. Montpellier, 34095, Montpellier, France
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Herbort AF, Sturm MT, Schuhen K. A new approach for the agglomeration and subsequent removal of polyethylene, polypropylene, and mixtures of both from freshwater systems - a case study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:15226-15234. [PMID: 29675819 DOI: 10.1007/s11356-018-1981-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 04/09/2018] [Indexed: 05/05/2023]
Abstract
Based on a new concept for the sustainable removal of microplastics from freshwater systems, a case study for a pH-induced agglomeration and subsequent removal of polyethylene and polypropylene particles from water is presented. The two-step-based process includes firstly a localization and secondly an aggregation of microplastic particles (250-350 μM) in a physicochemical process. The research describes a strong increase in the particle size independent of pH of the aquatic milieu induced by the addition of trichlorosilane-substituted Si derivatives. The resulting Si-based microplastic aggregates (particle size after aggregation is 2-3 cm) could be easily removed by use of, e.g., sand traps. Due to the effect that microplastic particles form agglomeration products under every kind of process conditions (e.g., various pH, various polymer concentrations), the study shows a high potential for the sustainable removal of particles from wastewater.
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Affiliation(s)
- Adrian Frank Herbort
- Institute for Environmental Sciences, University of Koblenz - Landau, Fortstr. 7, 76829, Landau in der Pfalz, Germany
| | - Michael Toni Sturm
- Institute for Environmental Sciences, University of Koblenz - Landau, Fortstr. 7, 76829, Landau in der Pfalz, Germany
| | - Katrin Schuhen
- Institute for Environmental Sciences, University of Koblenz - Landau, Fortstr. 7, 76829, Landau in der Pfalz, Germany.
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Khanjani J, Zohuriaan-Mehr M, Pazokifard S. Microemulsion and macroemulsion polymerization of octamethylcyclotetrasiloxane: A comparative study. PHOSPHORUS SULFUR 2017. [DOI: 10.1080/10426507.2017.1315418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Jaber Khanjani
- Adhesive and Resin Department, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | | | - Shahla Pazokifard
- Color & Surface Coatings Department, Iran Polymer and Petrochemical Institute, Tehran, Iran
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Mohorič I, Šebenik U. Semibatch anionic ring-opening polymerization of octamethylcyclotetrasiloxane in emulsions: effect of the amount of seed polymer particles. POLYM INT 2012. [DOI: 10.1002/pi.4386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ines Mohorič
- Hidria Rotomatika d.o.o; Sp. Kanomlja 23, 5281 Sp; Idrija; Slovenia
| | - Urška Šebenik
- University of Ljubljana, Faculty of Chemistry and Chemical Technology; Aškerčeva cesta 5; 1000; Ljubljana; Slovenia
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Longuet C, Joly-Duhamel C, Ganachaud F. Copolycondensation of Regular Functional Silane and Siloxane in Aqueous Emulsion Using B(C6F5)3 as a Catalyst. MACROMOL CHEM PHYS 2007. [DOI: 10.1002/macp.200700202] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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