1
|
Tran HN, Kim IG, Kim JH, Chung EJ, Noh I. Control of maleic acid-propylene diepoxide hydrogel for 3D printing application for flexible tissue engineering scaffold with high resolution by end capping and graft polymerization. Biomater Res 2022; 26:75. [PMID: 36494708 PMCID: PMC9733183 DOI: 10.1186/s40824-022-00318-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 11/11/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Control of 3D printing of highly tough hydrogel inks with adequate printability, scaffold fidelity and mechanical properties are highly desirable for biomedical and tissue engineering applications. However, developing a biocompatible tough ink with high-resolution printability, biodegradability, self-healing, adhesion, and integration with surrounding tissues is a big challenge in 3D printing. The aim of this study was to develop extrusion-based 3D printing of viscous hydrogel composing of maleic acid and propylene diepoxide by controlling continuous mechanisms of condensation and radical polymerization. METHODS The molecular weight of highly adhesive propagating poly(malate-co-propylene oxide) copolymer was controlled by capping its growing chain with mono-functional lipoic acid with different compositions during condensation reaction to form lipoic acid capped gel (LP-capped gel). Poly(ethylene oxide)-diacrylate, PEGDA, is graft-polymerized to the LP-capped backbone polymer (MPLE gel) by UV irradiation during 3D printing process to control the properties of gel printability, mechanical properties, and cell adhesiveness and post-printing fidelity of the printed scaffolds with high resolution and mechanical properties (MPLE scaffold). The scaffolds in complex geometries have been printed out in diverse forms with addition of model drugs with different molecular weights and chemical structures. Both the highly adhesive LP-capped gel and printing-controlled MPLE gel/scaffolds are diversely characterized and compared with for their applications to the extrusion-based printability, including biocompatibility, self-healing, drug releasing, adhesiveness, multi-layered high-resolution printing. Further in vitro/in vivo tests were done to observe cytotoxicity, immune response and tissue formation by using different cells in mice model. RESULTS LP-capped hydrogel from maleic acid and propylene diepoxide gel showed control of gel properties with lipoic acid with one function group of thiol during condensation reaction, and the ratio at 1:0.3 (w/v) between LP-capped gel and PEGDA was chosen for the optimal results during radical polymerization process for 3D printing at high resolution (90-140 μm in strut thickness) with various complex geometries (lattice, rhombus, and honeycomb). The hydrogel showed excellent properties of self-healing, mechanical strength, biocompatibility, etc. In addition, the long-term release profiles of bioactive molecules were well-controlled by incorporating drugs of high molecular bovine serum albumin (BSA, 21 days, 98.4 ± 0.69%), or small molecule ornidazole (ORN, 14 days, 97.1 ± 1.98%) into the MPLE gel scaffolds for the tests of potential therapeutic applications. More importantly, the MPLE gels represents excellent in vitro cyto-compatibility against osteoblast-like cells (MC3T3) with viability value at 96.43% ± 7.48% over 7 culturing days. For in-vivo studies, the flexible MPLE scaffolds showed significant improvement on angiogenesis with minor inflammatory response after 4-week implantation in mice. CONCLUSION The MPLE gel inks was well-controlled for the fabrication of flexible complex tissue engineering scaffold with high resolutions, shear-thinning, 3D printability and post-printing fidelity, by modulating the composition of the highly adhesive LP-capped gel and inert PEGDA as well as end capping of lipoic acid to the propagating poly(malate-co-propylene oxide) copolymer. The gel ink demonstrated its excellent printability, in vitro/in vivo biocompatibility and mechanical properties as well as sustained drug release from the gel.
Collapse
Affiliation(s)
- Hao Nguyen Tran
- grid.412485.e0000 0000 9760 4919Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, Seoul, 01811 Republic of Korea
| | - In Gul Kim
- grid.412484.f0000 0001 0302 820XDepartment of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Seoul National University Hospital, Seoul, 03080 Republic of Korea
| | - Jong Heon Kim
- grid.412485.e0000 0000 9760 4919Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, Seoul, 01811 Republic of Korea
| | - Eun-Jae Chung
- grid.412484.f0000 0001 0302 820XDepartment of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Seoul National University Hospital, Seoul, 03080 Republic of Korea
| | - Insup Noh
- grid.412485.e0000 0000 9760 4919Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, Seoul, 01811 Republic of Korea ,grid.412485.e0000 0000 9760 4919Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science and Technology, Seoul, 01811 Republic of Korea
| |
Collapse
|
3
|
Chen KF, Zhang Y, Lin J, Chen JY, Lin C, Gao M, Chen Y, Liu S, Wang L, Cui ZK, Jia YG. Upper Critical Solution Temperature Polyvalent Scaffolds Aggregate and Exterminate Bacteria. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107374. [PMID: 35129310 DOI: 10.1002/smll.202107374] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/24/2021] [Indexed: 06/14/2023]
Abstract
Specific recognition and strong affinities of bacteria receptors with the host cell glycoconjugates pave the way to control the bacteria aggregation and kill bacteria. Herein, using aggregation-induced emission (AIE) molecules decorated upper critical solution temperature (UCST) polyvalent scaffold (PATC-GlcN), an approach toward visualizing bacteria aggregation and controlling bacteria-polyvalent scaffolds affinities under temperature stimulus is described. Polyvalent scaffolds with diblocks, one UCST block PATC of polyacrylamides showing a sharp UCST transition and typical AIE behavior, the second bacteria recognition block GlcN of hydrophilic glucosamine modified polyacrylamide, are prepared through a reversible addition and fragmentation chain transfer polymerization. Aggregated chain conformation of polyvalent scaffolds at temperature below UCST induces the aggregation of E. coli ATCC8739, because of the high density of glucosamine moieties, whereas beyond UCST, the hydrophilic state of the scaffolds dissociates the bacteria aggregation. The sweet-talking of bacteria toward the polyvalent scaffolds can be visualized by the fluorescent imaging technique, simultaneously. Due to the specific recognition of polyvalent scaffolds with bacteria, the photothermal agent IR780 loaded PATC-GlcN shows the targeted killing ability toward E. coli ATCC8739 in vitro and in vivo under NIR radiation.
Collapse
Affiliation(s)
- Kai-Feng Chen
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Yiqing Zhang
- Department of Cell Biology, School of Basic Medical Sciences, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Southern Medical University, Guangzhou, 510515, China
| | - Jiawei Lin
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Jun-You Chen
- Department of Cell Biology, School of Basic Medical Sciences, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Southern Medical University, Guangzhou, 510515, China
| | - Caihong Lin
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Meng Gao
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Yunhua Chen
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Sa Liu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Lin Wang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, China
- Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Zhong-Kai Cui
- Department of Cell Biology, School of Basic Medical Sciences, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Southern Medical University, Guangzhou, 510515, China
| | - Yong-Guang Jia
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, China
- Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| |
Collapse
|
12
|
Rasines Mazo A, Allison-Logan S, Karimi F, Chan NJA, Qiu W, Duan W, O’Brien-Simpson NM, Qiao GG. Ring opening polymerization of α-amino acids: advances in synthesis, architecture and applications of polypeptides and their hybrids. Chem Soc Rev 2020; 49:4737-4834. [DOI: 10.1039/c9cs00738e] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This review provides a comprehensive overview of the latest advances in the synthesis, architectural design and biomedical applications of polypeptides and their hybrids.
Collapse
Affiliation(s)
- Alicia Rasines Mazo
- Polymer Science Group
- Department of Chemical Engineering
- University of Melbourne
- Parkville
- Australia
| | - Stephanie Allison-Logan
- Polymer Science Group
- Department of Chemical Engineering
- University of Melbourne
- Parkville
- Australia
| | - Fatemeh Karimi
- Polymer Science Group
- Department of Chemical Engineering
- University of Melbourne
- Parkville
- Australia
| | - Nicholas Jun-An Chan
- Polymer Science Group
- Department of Chemical Engineering
- University of Melbourne
- Parkville
- Australia
| | - Wenlian Qiu
- Polymer Science Group
- Department of Chemical Engineering
- University of Melbourne
- Parkville
- Australia
| | - Wei Duan
- School of Medicine
- Deakin University
- Geelong
- Australia
| | - Neil M. O’Brien-Simpson
- Centre for Oral Health Research
- Melbourne Dental School and the Bio21 Institute of Molecular Science and Biotechnology
- University of Melbourne
- Parkville
- Australia
| | - Greg G. Qiao
- Polymer Science Group
- Department of Chemical Engineering
- University of Melbourne
- Parkville
- Australia
| |
Collapse
|
13
|
Baddam V, Missonen R, Hietala S, Tenhu H. Molecular Mass Affects the Phase Separation of Aqueous PEG-Polycation Block Copolymer. Macromolecules 2019; 52:6514-6522. [PMID: 31543553 PMCID: PMC6748676 DOI: 10.1021/acs.macromol.9b01327] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/08/2019] [Indexed: 11/30/2022]
Abstract
![]()
Mechanisms of the phase separation
and remixing of cationic PEG-containing
block copolymers have been investigated in aqueous lithium triflate
solutions. The polycation was poly(vinylbenzyl trimethylammonium triflate).
We have previously reported on one such block copolymer, which upon
cooling of a hot clear solution first underwent phase separation into
a turbid colloid and, later, partially cleared again with further
cooling. To better understand the balance of various interactions
in the solutions/dispersions, a series of polymers with varying DP
of the cationic block was synthesized. From one of the polymers, the
alkyl end group (a fragment of the chain transfer agent) was removed.
The length of the cationic block affected critically the behavior,
but the hydrophobic end group had a minimal effect. Polymers with
a short cationic block turn cloudy and partially clear again during
a temperature decrease, whereas those with a long cationic block phase
separate and slowly precipitate and remix only when heated. Phase
separation takes place via particle formation, and we suggest different
mechanisms for colloidal stabilization of particles composed of short
or long chains.
Collapse
Affiliation(s)
- Vikram Baddam
- Department of Chemistry, University of Helsinki, PB 55, FIN-00014 Helsinki, Finland
| | - Reetta Missonen
- Department of Chemistry, University of Helsinki, PB 55, FIN-00014 Helsinki, Finland
| | - Sami Hietala
- Department of Chemistry, University of Helsinki, PB 55, FIN-00014 Helsinki, Finland
| | - Heikki Tenhu
- Department of Chemistry, University of Helsinki, PB 55, FIN-00014 Helsinki, Finland
| |
Collapse
|