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Zhang T, Lu W, Cai LL, Chen JY, Qiu ML, Chen ZW, Pan H, Liu ZC, Lu Z, Cai H. Transformation of Metal-Organic Framework from Kinetic to Thermodynamic Product for Controlled Delivery of Vitamin C. Inorg Chem 2024; 63:14345-14353. [PMID: 39033409 DOI: 10.1021/acs.inorgchem.4c00700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
A biocompatible metal-organic framework (MOF), named HSTC-4, constructed using the flexible 4,4'-oxybis(benzoic acid) (OBA), was developed to enable efficient loading and controlled release of vitamin C (VC) through a combination of strategies involving ligand length, structure design, and metal selection. The kinetic product HSTC-4 demonstrates a propensity for transforming into the thermodynamically stable HSTC-5 under external stimuli, such as photoillumination and vacuum heating, as witnessed by single-crystal to single-crystal transformation. Density functional theory (DFT) calculations reveal that the VC guest molecules exhibit stronger binding affinity with HSTC-5 due to its narrower pores compared to HSTC-4, resulting in a slower release of VC from VC@HSTC-5. Furthermore, precise control over VC release can be achieved by introducing surface modifications involving SiO2 onto the structure of VC@HSCT-5, while simultaneously adjusting environmental factors such as pH and temperature conditions. Preliminary cell culture experiments and cytotoxicity assays highlight the biocompatibility of HSTC-5, suggesting that it is a promising platform for sustained drug delivery and diverse biomedical applications.
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Affiliation(s)
- Ting Zhang
- School of Chemical and Environmental Engineering, Hanshan Normal University, Chaozhou, Guangdong 521041, P. R. China
| | - Wen Lu
- School of Chemical and Environmental Engineering, Hanshan Normal University, Chaozhou, Guangdong 521041, P. R. China
| | - Li-Lu Cai
- School of Chemical and Environmental Engineering, Hanshan Normal University, Chaozhou, Guangdong 521041, P. R. China
| | - Jing-Ying Chen
- School of Chemical and Environmental Engineering, Hanshan Normal University, Chaozhou, Guangdong 521041, P. R. China
| | - Miao-Ling Qiu
- School of Chemical and Environmental Engineering, Hanshan Normal University, Chaozhou, Guangdong 521041, P. R. China
| | - Zi-Wei Chen
- School of Chemical and Environmental Engineering, Hanshan Normal University, Chaozhou, Guangdong 521041, P. R. China
| | - Hui Pan
- School of Chemical and Environmental Engineering, Hanshan Normal University, Chaozhou, Guangdong 521041, P. R. China
| | - Zhi-Cong Liu
- School of Life Sciences and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong 521041, P. R. China
| | - Zhou Lu
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Hong Cai
- School of Chemical and Environmental Engineering, Hanshan Normal University, Chaozhou, Guangdong 521041, P. R. China
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Feng Y, Su L, Liu L, Chen Z, Ji Y, Hu Y, Zheng D, Chen Z, Lei C, Xu H, Han Y, Shen H. Accurate Spatio-Temporal Delivery of Nitric Oxide Facilitates the Programmable Repair of Avascular Dense Connective Tissues Injury. Adv Healthc Mater 2024; 13:e2303740. [PMID: 38413194 DOI: 10.1002/adhm.202303740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/21/2023] [Indexed: 02/29/2024]
Abstract
Avascular dense connective tissues (e.g., the annulus fibrosus (AF) rupture, the meniscus tear, and tendons and ligaments injury) repair remains a challenge due to the "biological barrier" that hinders traditional drug permeation and limits self-healing of the injured tissue. Here, accurate delivery of nitric oxide (NO) to penetrate the "AF biological barrier" is achieved thereby enabling programmable AF repair. NO-loaded BioMOFs are synthesized and mixed in a modified polyvinyl alcohol and PCL-composited electrospun fiber membrane with excellent reactive oxygen species-responsive capability (LN@PM). The results show that LN@PM could respond to the high oxidative stress environment at the injured tissue and realize continuous and substantial NO release. Based on low molecular weight and lipophilicity, NO could penetrate through the "biological barrier" for accurate AF drug delivery. Moreover, the dynamic characteristics of the LN@PM reaction can be matched with the pathological microenvironment to initiate programmable tissue repair including sequential remodeling microenvironment, reprogramming the immune environment, and finally promoting tissue regeneration. This tailored programmable treatment strategy that matches the pathological repair process significantly repairs AF, ultimately alleviating intervertebral disc degeneration. This study highlights a promising approach for avascular dense connective tissue treatment through intelligent NO release, effectively overcoming "AF biological barriers" and programmable treatment.
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Affiliation(s)
- Yubo Feng
- Department of Spine Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, P. R. China
| | - Lefeng Su
- College of Chemistry and Materials Science, Shanghai Normal University, Shanghai, 200234, P. R. China
| | - Lei Liu
- College of Chemistry and Materials Science, Shanghai Normal University, Shanghai, 200234, P. R. China
| | - Zhanyi Chen
- Department of Spine Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, P. R. China
| | - Yucheng Ji
- Department of Spine Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, P. R. China
| | - Yuwei Hu
- College of Chemistry and Materials Science, Shanghai Normal University, Shanghai, 200234, P. R. China
| | - Dandan Zheng
- Department of Spine Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, P. R. China
| | - Zhi Chen
- Department of Spine Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, P. R. China
| | - Changbin Lei
- Department of Orthopedics, Affiliated Hospital of Xiangnan University, Chenzhou, 423000, P. R. China
| | - He Xu
- College of Chemistry and Materials Science, Shanghai Normal University, Shanghai, 200234, P. R. China
| | - Yingchao Han
- Department of Spine Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, P. R. China
| | - Hongxing Shen
- Department of Spine Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, P. R. China
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Zhang ML, Zhang GP, Ma HS, Pan YZ, Liao XL. Preparation of pH-responsive polyurethane nano micelles and their antibacterial application. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:519-534. [PMID: 38265701 DOI: 10.1080/09205063.2024.2301807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 12/29/2023] [Indexed: 01/25/2024]
Abstract
Considering the differences in pH between bacterial infection microenvironment and normal tissues, a series of pH-responsive drug-release amphiphilic polyurethane copolymers (DPU-g-PEG) have been prepared in this work. Fourier transform infrared (FT-IR) spectroscopy and 1H NMR was selected to detect the structure of the condensed polymers. The DPU-g-PEG amphiphilic copolymers could form stable micelles with a hydrophilic shell of polyethylene glycol (PEG) and a hydrophobic core of polylactic acid (PLA). We loaded a model drug called triclosan onto DPU-g-PEG micelles and studied how pH affects their particle size, Zeta potential, and drug release performance. The results revealed that when exposed to acidic conditions, the surface potential of DPU-g-PEG micelles changed, the micelles' particle size increased, and the drug release performance was significantly enhanced. These results suggested that the micelles prepared in this study can release more antibacterial substances at sites of bacterial infection. Meanwhile, we also investigated the impact of different ratios of soft and hard segments on the properties of micelles, and the results showed that the pH responsiveness of micelles was strongest when the ratio of soft segments (PLLA diol + PEG 2000): 1,6-hexamethylene diisocyanate (HDI): 2,6-Bis-(2-hydroxy-ethyl)-pyrrolo[3,4-f]isoindole-1,3,5,7-tetraone (DMA) = 1: 1.2: 0.2. Furthermore, the results of inhibition zone test, minimum inhibitory concentration (MIC), and minimum bactericidal concentration (MBC) all confirmed the antibacterial activity of triclosan-load DPU-g-PEG micelles. In conclusion, the DPU-g-PEG micelles produced in this study have the potential to be used as intelligent drug delivery systems in the biomedical field.
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Affiliation(s)
- Mao-Lan Zhang
- Institute of Biomedical Engineering, Chongqing University of Science and Technology, Chongqing, China
| | - Gui-Ping Zhang
- Institute of Biomedical Engineering, Chongqing University of Science and Technology, Chongqing, China
| | - Hong-Shuo Ma
- Institute of Biomedical Engineering, Chongqing University of Science and Technology, Chongqing, China
| | - Yu-Zhu Pan
- School of Chemical Engineering, Sichuan University of Science and Engineering, Zigong, China
| | - Xiao-Ling Liao
- Institute of Biomedical Engineering, Chongqing University of Science and Technology, Chongqing, China
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Elmehrath S, Nguyen HL, Karam SM, Amin A, Greish YE. BioMOF-Based Anti-Cancer Drug Delivery Systems. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:953. [PMID: 36903831 PMCID: PMC10005089 DOI: 10.3390/nano13050953] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 02/19/2023] [Accepted: 03/03/2023] [Indexed: 06/18/2023]
Abstract
A variety of nanomaterials have been developed specifically for biomedical applications, such as drug delivery in cancer treatment. These materials involve both synthetic and natural nanoparticles and nanofibers of varying dimensions. The efficacy of a drug delivery system (DDS) depends on its biocompatibility, intrinsic high surface area, high interconnected porosity, and chemical functionality. Recent advances in metal-organic framework (MOF) nanostructures have led to the achievement of these desirable features. MOFs consist of metal ions and organic linkers that are assembled in different geometries and can be produced in 0, 1, 2, or 3 dimensions. The defining features of MOFs are their outstanding surface area, interconnected porosity, and variable chemical functionality, which enable an endless range of modalities for loading drugs into their hierarchical structures. MOFs, coupled with biocompatibility requisites, are now regarded as highly successful DDSs for the treatment of diverse diseases. This review aims to present the development and applications of DDSs based on chemically-functionalized MOF nanostructures in the context of cancer treatment. A concise overview of the structure, synthesis, and mode of action of MOF-DDS is provided.
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Affiliation(s)
- Sandy Elmehrath
- Department of Chemistry, United Arab Emirates University, Al-Ain 15551, United Arab Emirates
| | - Ha L. Nguyen
- Department of Chemistry University of California—Berkeley, Kavli Energy Nanoscience Institute at UC Berkeley, and Berkeley Global Science Institute, Berkeley, CA 94720, USA
- Joint UAEU−UC Berkeley Laboratories for Materials Innovations, United Arab Emirates University, Al-Ain 15551, United Arab Emirates
| | - Sherif M. Karam
- Department of Anatomy, United Arab Emirates University, Al-Ain 15551, United Arab Emirates
- Zayed Centre for Health Sciences, United Arab Emirates University, Al-Ain 15551, United Arab Emirates
| | - Amr Amin
- Zayed Centre for Health Sciences, United Arab Emirates University, Al-Ain 15551, United Arab Emirates
- Department of Biology, United Arab Emirates University, Al-Ain 15551, United Arab Emirates
| | - Yaser E. Greish
- Department of Chemistry, United Arab Emirates University, Al-Ain 15551, United Arab Emirates
- Joint UAEU−UC Berkeley Laboratories for Materials Innovations, United Arab Emirates University, Al-Ain 15551, United Arab Emirates
- Zayed Centre for Health Sciences, United Arab Emirates University, Al-Ain 15551, United Arab Emirates
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