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Chen H, Lin M, Zhu Y, Zhang D, Chen J, Wei Q, Yuan S, Liao Y, Chen F, Chen Y, Lin M, Fang X. Halogen-bonding boosting the high performance X-ray imaging of organic scintillators. Small 2024; 20:e2307277. [PMID: 37972264 DOI: 10.1002/smll.202307277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/20/2023] [Indexed: 11/19/2023]
Abstract
Organic scintillators with efficient X-ray excited luminescence are essential for medical diagnostics and security screening. However, achieving excellent organic scintillation materials is challenging due to low X-ray absorption coefficients and inferior radioluminescence (RL) intensity. Herein, supramolecular interactions are incorporated, particularly halogen bonding, into organic scintillators to enhance their radioluminescence properties. By introducing heavy atoms (X = Cl, Br, I) into 9,10-bis(4-pyridyl)anthracene (BPA), the formation of halogen bonding (BPA-X) enhances their X-ray absorption coefficient and restricts the molecular vibration and rotation, which boosts their RL intensity. The RL intensity of BPA-Cl and BPA-Br fluorochromes increased by over 2 and 6.3 times compared to BPA, respectively. Especially, BPA-Br exhibits an ultrafast decay time of 8.25 ns and low detection limits of 25.95 ± 2.49 nGy s-1. The flexible film constructed with BPA-Br exhibited excellent X-ray imaging capabilities. Furthermore, this approach is also applicable to organic phosphors. The formation of halogen bonding in bromophenyl-methylpyridinium iodide (PYI) led to a fourfold increase in RL intensity compared to bromophenyl-methyl-pyridinium (PY). It suggests that halogen bonding serves as a promising and effective molecular design strategy for the development of high-performance organic scintillator materials, presenting new opportunities for their applications in radiology and security screening.
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Affiliation(s)
- Hongming Chen
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Miao Lin
- College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Yanan Zhu
- Department of Materials Science, Shenzhen MSU-BIT University, Shenzhen, 518172, P. R. China
| | - Dongwei Zhang
- School of Microelectronics, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Jingru Chen
- College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Qingsong Wei
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Siqi Yuan
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Yibin Liao
- Maotai (Fujian) New Materials Technology Co., Ltd., Quanzhou, 362216, P. R. China
| | - Fuhai Chen
- College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Yong Chen
- College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Meijin Lin
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
- College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Xin Fang
- College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
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Chen K, He W, Gao W, Wu Y, Zhang Z, Liu M, Hu Y, Xiao X, Li F, Feng Q. A Dual Reversible Cross-Linked Hydrogel with Enhanced Mechanical Property and Capable of Proangiogenic and Osteogenic Activities for Bone Defect Repair. Macromol Biosci 2024; 24:e2300325. [PMID: 37805941 DOI: 10.1002/mabi.202300325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/29/2023] [Indexed: 10/10/2023]
Abstract
The clinical treatment of bone defects presents ongoing challenges. One promising approach is bone tissue engineering (BTE), wherein hydrogels have garnered significant attention. However, the application of hydrogels in BTE is severely limited due to their poor mechanical properties, as well as their inferior proangiogenic and osteogenic activities. To address these limitations, our develop a dual cross-linked alendronate (ALN)-Ca2+ /Mg2+ -doped sulfated hyaluronic acid (SHA@CM) hydrogel, using a one-step mixing injection molding method known as "three-in-one" approach. This approach enabled the simultaneous formation of Schiff-Base crosslinking and electric attraction-based crosslinking within the hydrogel. The Schiff-Base crosslinking contributed to the majority of the hydrogel's mechanical strength, while the electric attraction-based crosslinking served as a release reservoir for Ca2+ /Mg2+ and ALN, promoting enhanced osteogenic activities and providing additional mechanical reinforcement to the hydrogel. These experimental data demonstrates several favorable properties of the SHA@CM hydrogel, including satisfactory injectability, rapid gelation, self-healing capacity, and excellent cytocompatibility. Moreover, the presence of sulfated groups and Mg2+ within the SHA@CM hydrogel exhibited pro-angiogenic effects, while the controlled release of nanoparticles formed by Ca2+ /Mg2+ and ALN further enhanced the osteogenesis of the hydrogel. Overall, these results indicate that the SHA@CM hydrogel holds significant potential for the clinical translation of BTE.
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Affiliation(s)
- Kai Chen
- School of Resources and Chemical Engineering, Sanming University, Sanming, 365004, China
| | - Wenbao He
- Department of Orthopedics, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Wei Gao
- Qingdao medical college of Qingdao University, Qingdao, 266073, China
| | - Yan Wu
- College of Life Science, Mudanjiang Medical University, Mudanjiang, 157011, China
| | - Zhe Zhang
- College of Life Science, Mudanjiang Medical University, Mudanjiang, 157011, China
| | - Mingxiang Liu
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350117, China
| | - Yunping Hu
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350117, China
| | - Xiufeng Xiao
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350117, China
| | - Fuping Li
- Department of Spine Surgery, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, 200434, China
| | - Qian Feng
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
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