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Besirske P, Menichetti A, Montalti M, García-Ruiz JM, Winterhalder M, Boneberg J, Cölfen H. Localized Crystallization of Calcium Phosphates by Light-Induced Processes. Chemistry 2023; 29:e202302327. [PMID: 37665635 DOI: 10.1002/chem.202302327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/01/2023] [Accepted: 09/04/2023] [Indexed: 09/06/2023]
Abstract
Medical treatment options for bones and teeth can be significantly enhanced by taking control over the crystallization of biomaterials like hydroxyapatite in the healing process. Light-induced techniques are particularly interesting for this approach as they offer tremendous accuracy in spatial resolution. However, in the field of calcium phosphates, light-induced crystallization has not been investigated so far. Here, proof of principle is established to successfully induce carbonate-hydroxyapatite precipitation by light irradiation. Phosphoric acid is released by a photolabile molecule exclusively after irradiation, combining with calcium ions to form a calcium phosphate in the crystallization medium. 4-Nitrophenylphosphate (4NPP) is established as the photolabile molecule and the system is optimized and fully characterized. A calcium phosphate is crystallized exclusively by irradiation in aqueous solution and identified as carbonate apatite. Control over the localization and stabilization of the carbonate apatite is achieved by a pulsed laser, triggering precipitation in calcium and 4NPP-containing gel matrices. The results of this communication open up a wide range of new opportunities, both in the field of chemistry for more sophisticated reaction control in localized crystallization processes and in the field of medicine for enhanced treatment of calcium phosphate containing biomaterials.
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Affiliation(s)
- Patricia Besirske
- Physical Chemistry, University of Konstanz, Universitätsstr. 10, 78457, Konstanz, Germany
| | - Arianna Menichetti
- Dipartimento di Chimica "Giacomo Ciamician", University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - Marco Montalti
- Dipartimento di Chimica "Giacomo Ciamician", University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - Juan Manuel García-Ruiz
- Laboratorio de Estudios Cristalográficos Instituto, Andaluz de Ciencias de la Tierra, CSIC-Universidad de Granada, Av. De las Palmeras 4, 18151, Armilla, Granada, Spain
| | - Martin Winterhalder
- Physical Chemistry, University of Konstanz, Universitätsstr. 10, 78457, Konstanz, Germany
| | - Johannes Boneberg
- Mesoscopic Systems, Department of Physics, University of Konstanz, Universitätsstr. 10, 78457, Konstanz, Germany
| | - Helmut Cölfen
- Physical Chemistry, University of Konstanz, Universitätsstr. 10, 78457, Konstanz, Germany
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Tan W, Gao C, Feng P, Liu Q, Liu C, Wang Z, Deng Y, Shuai C. Dual-functional scaffolds of poly(L-lactic acid)/nanohydroxyapatite encapsulated with metformin: Simultaneous enhancement of bone repair and bone tumor inhibition. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 120:111592. [PMID: 33545810 DOI: 10.1016/j.msec.2020.111592] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 09/01/2020] [Accepted: 09/30/2020] [Indexed: 12/16/2022]
Abstract
Bone defects caused by tumors are difficult to repair clinically because of their poor morphology and residual tumor cell-induced recurrence. Scaffolds with the dual function of bone repair and bone tumor treatment are urgently needed to resolve this problem. In this study, a poly(L-lactic acid) (PLLA)/nanoscale hydroxyapatite (nHA)/metformin (MET) nanocomposite scaffold was constructed via selective laser sintering. The scaffolds were expected to combine the excellent mechanical strength and biodegradability of PLLA, the good bioactivity of nHA, and the water solubility and antitumor properties of MET. The PLLA/nHA/MET scaffolds showed improved cell adhesion, appropriate porosity, good biocompatibility and osteogenic-induced ability in vitro because metformin improves water solubility and promotes the osteogenic differentiation of cells within the scaffold. The PLLA/nHA/MET scaffold had an extended drug release time because the MET particles were wrapped in the biodegradable polymer PLLA and the wrapped MET particles were slowly released into body fluids as the PLLA was degraded. Moreover, the scaffold induced osteosarcoma (OS) cell apoptosis by upregulating apoptosis-related gene expression and showed excellent tumor inhibition characteristics in vitro. In addition, the scaffold induced osteogenic differentiation of bone marrow mesenchymal cells (BMSCs) by promoting osteogenic gene expression. The results suggest that the PLLA/nHA/MET composite scaffold has the dual function of tumor inhibition and bone repair and therefore it provides a promising new approach for the treatment of tumor-induced bone defects.
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Affiliation(s)
- Wei Tan
- Department of Spine Surgery, The Third Xiangya Hospital of Central South University, No.138, Tongzipo Road, Changsha, Hunan 410013, People's Republic of China; Department of Spinal Orthopedics, Huizhou Third People's Hospital, Guangzhou Medical University, No.1, Xuebei Road, Huizhou, Guangdong 516002, People's Republic of China
| | - Chengde Gao
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha, Hunan, People's Republic of China
| | - Pei Feng
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha, Hunan, People's Republic of China
| | - Qing Liu
- Department of Spine Surgery, The Third Xiangya Hospital of Central South University, No.138, Tongzipo Road, Changsha, Hunan 410013, People's Republic of China
| | - Congcong Liu
- Department of Spine Surgery, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, PR China
| | - Zhenting Wang
- Department of Urinary Surgery, Haikou People's Hospital, Haikou, Hainan 570208, P.R. China
| | - Youwen Deng
- Department of Spine Surgery, The Third Xiangya Hospital of Central South University, No.138, Tongzipo Road, Changsha, Hunan 410013, People's Republic of China.
| | - Cijun Shuai
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha, Hunan, People's Republic of China.
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Niu X, Fan R, Tian F, Guo X, Li P, Feng Q, Fan Y. Calcium concentration dependent collagen mineralization. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 73:137-143. [DOI: 10.1016/j.msec.2016.12.079] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Revised: 11/29/2016] [Accepted: 12/16/2016] [Indexed: 11/24/2022]
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Growth of hydroxyapatite on the cellular membrane of the bacterium Bacillus thuringiensis for the preparation of hybrid biomaterials. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:614-21. [DOI: 10.1016/j.msec.2015.09.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 08/09/2015] [Accepted: 09/01/2015] [Indexed: 01/26/2023]
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