title: Biodegradable, Elastomeric, and Intrinsically Photoluminescent Poly(Silicon-Citrates) with high Photostability and Biocompatibility for Tissue Regeneration and Bioimaging.
abstract: Biodegradable polymer biomaterials with intrinsical photoluminescent properties have attracted much interest, due to their potential advantages for tissue regeneration and noninvasive bioimaging. However, few of current biodegradable polymers possess tunable intrinsically fluorescent properties, such as high photostability, fluorescent lifetime, and quantum field, and strong mechanical properties for meeting the requirements of biomedical applications. Here, by a facile one-step thermal polymerization, elastomeric poly(silicone-citrate) (PSC) hybrid polymers are developed with controlled biodegradability and mechanical properties, tunable inherent fluorescent emission (up to 600 nm), high photostability (beyond 180 min for UV and six months for natural light), fluorescent lifetime (near 10 ns) and quantum yield (16%-35%), high cellular biocompatibility, and minimal inflammatory response in vivo, which provide advantages over conventional fluorescent dyes, quantum dots, and current fluorescent polymers. The promising applications of PSC hybrids for cell and implants imaging in vitro and in vivo are successfully demonstrated. The development of elastomeric PSC polymer may provide a new strategy in synthesizing new inorganic-organic hybrid photo-luminescent materials for tissue regeneration and bioimaging applications.
authors.affiliation: Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China.
authors.forename: Yuzhang
authors.initials: Y
authors.lastname: Du
authors.affiliation: Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China.
authors.forename: Yumeng
authors.initials: Y
authors.lastname: Xue
authors.affiliation: Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China.|Department of Biologic and Materials Sciences, University of Michigan, Ann Arbor, MI, 48109-2009, USA.|Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, MI, 48109-2009, USA.|Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI, 48109-2009, USA.
authors.forename: Peter X
authors.initials: PX
authors.lastname: Ma
authors.affiliation: National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou, 510000, China.
authors.forename: Xiaofeng
authors.initials: X
authors.lastname: Chen
authors.affiliation: Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China.|State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, 710054, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Lei
mesh_terms: D000818:Animals; D001672:Biocompatible Materials / Q000008:administration & dosage* / Q000737:chemistry*; D002478:Cells, Cultured; D002951:Citrates / Q000008:administration & dosage / Q000737:chemistry*; D003952:Diagnostic Imaging / Q000379:methods; D004548:Elasticity / Q000187:drug effects; D020724:Elastomers; D005456:Fluorescent Dyes / Q000008:administration & dosage / Q000737:chemistry; D051379:Mice; D011108:Polymers / Q000008:administration & dosage / Q000737:chemistry*; D045663:Quantum Dots / Q000008:administration & dosage / Q000737:chemistry; D012038:Regeneration / Q000187:drug effects*; D012825:Silicon / Q000008:administration & dosage / Q000737:chemistry*
chemical_list: D001672:Biocompatible Materials; D002951:Citrates; D020724:Elastomers; D005456:Fluorescent Dyes; D011108:Polymers; C036925:elastomeric polymer; D012825:Silicon
keywords: biocompatibility; bioimaging; elastomeric hybrid polymer; photoluminescent ability; silica-based biomaterials