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Zhan YL, Wen KC, Li ZA, Sun P, Li FQ. Dielectric and Magnetic Composites of Fe 3O 4@APNs for Superior Microwave Thermal Effect. ACS Biomater Sci Eng 2024; 10:791-799. [PMID: 38153906 DOI: 10.1021/acsbiomaterials.3c01341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2023]
Abstract
As for the deep tissue infections of chronic osteomyelitis, antibiotics are hard to deliver into the infected bone tissue, which makes it difficult to be cured completely in clinic. Microwave has strong penetration, and the medium can produce a good bactericidal effect through the microwave thermal effect (MTE). Here, a new microwave sensitizer (Fe3O4@APNs) was prepared and evaluated. Black phosphorus nanosheets modified with phytic acid dodecasodium (APNs) were fabricated by a liquid-phase exfoliation method that exhibited good water oxygen stability. A complex with Fe3O4 compound and APNs (Fe3O4@APNs) was formed by an ultrasonic mixing process, which showed excellent MTE (quickly increased to 53.5 °C in 5 min at 2.45 GHz, 10 W/cm2) via dielectric versus magnetic loss (reflect loss value of -5.94 dB at 2.45 GHz). The Fe3O4@APNs microwave sensitizer developed in this study has an outstanding in vitro antibacterial effect and might show promise for the treatment of chronic osteomyelitis enabled by local tissue heating via the MTE.
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Affiliation(s)
- Yan-Lei Zhan
- Department of Orthopaedics/Pharmaceutics, Shanghai Eighth People's Hospital, Shanghai 200235, China
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Kai-Chao Wen
- Department of Orthopaedics/Pharmaceutics, Shanghai Eighth People's Hospital, Shanghai 200235, China
| | - Zheng-An Li
- Department of Orthopaedics/Pharmaceutics, Shanghai Eighth People's Hospital, Shanghai 200235, China
| | - Ping Sun
- Department of Orthopaedics/Pharmaceutics, Shanghai Eighth People's Hospital, Shanghai 200235, China
| | - Feng-Qian Li
- Department of Orthopaedics/Pharmaceutics, Shanghai Eighth People's Hospital, Shanghai 200235, China
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Qayoom I, Prasad A, Srivastava E, Fazili KM, Nussler AK, Kumar A. Organic-inorganic composite of polypropylene fumarate and nanohydroxyapatite as carrier of antibiotics for the treatment of bone infections. BIOMATERIALS ADVANCES 2024; 157:213714. [PMID: 38096647 DOI: 10.1016/j.bioadv.2023.213714] [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: 02/16/2023] [Revised: 10/27/2023] [Accepted: 11/26/2023] [Indexed: 02/02/2024]
Abstract
Current treatment approaches in clinics to treat the infectious lesions have partial success thus demanding the need for development of advanced treatment modalities. In this study we fabricated an organic-inorganic composite of polypropylene fumarate (PPF) and nanohydroxyapatite (nHAP) by photo-crosslinking as a carrier of two clinically used antibiotics, ciprofloxacin (CIP) and rifampicin (RFP) for the treatment of bone infections. Carboxy terminal-PPF was first synthesized by cis-trans isomerization of maleic anhydride which was then photo-crosslinked using diethylfumarate (DEF) as crosslinker and bis-acylphosphine oxide (BAPO) as photo-initiator under UV lights (P). A composite of PPF and nHAP was fabricated by incorporating 40 % of nHAP in the polymeric matrix of PPF (PH) which was then characterized for different physicochemical parameters. CIP was added along with nHAP to fabricated CIPloaded composite scaffolds (PHC) which was then coated with RFP to synthesize RFP coated CIP-loaded scaffolds (PHCR). It was observed that there was a temporal separation in the in vitro release of two antibiotics after coating PHC with RFP with 80.48 ± 0.40 % release of CIP from PHC and 62.43 ± 0.21 % release of CIP from PHCR for a period of 60 days. Moreover, in vitro protein adsorption was also found to be maximum in PHCR (154.95 ± 0.07 μg/mL) as observed in PHC (75.42 ± 0.06 μg/mL), PH (24.47 ± 0.08 μg/mL) and P alone (4.47 ± 0.02 μg/mL). The scaffolds were also evaluated using in vivo infection model to assess their capacity in reducing the bacterial burden at the infection site. The outcome of this study suggests that RFP coated CIP-loaded PPF composite scaffolds could reduce bacterial burden and simultaneously augment bone healing during infection related fractures.
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Affiliation(s)
- Irfan Qayoom
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Abhay Prasad
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Ekta Srivastava
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Khalid Majid Fazili
- Department of Biotechnology, University of Kashmir, Srinagar 190006, Jammu and Kashmir, India
| | - Andreas K Nussler
- Siegfried Weller Research Institute at the BG Trauma Center Tübingen, Department of Trauma and Reconstructive Surgery, University of Tübingen, Tübingen 72076, Germany
| | - Ashok Kumar
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India; Centre for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India; Center for Nanosciences, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India; The Mehta Family Centre for Engineering in Medicine, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India; Centre of Excellence for Orthopedics and Prosthetics, Gangwal School of Medical Sciences and Technology, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India.
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Omidian H, Dey Chowdhury S, Babanejad N. Cryogels: Advancing Biomaterials for Transformative Biomedical Applications. Pharmaceutics 2023; 15:1836. [PMID: 37514023 PMCID: PMC10384998 DOI: 10.3390/pharmaceutics15071836] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/21/2023] [Accepted: 06/23/2023] [Indexed: 07/30/2023] Open
Abstract
Cryogels, composed of synthetic and natural materials, have emerged as versatile biomaterials with applications in tissue engineering, controlled drug delivery, regenerative medicine, and therapeutics. However, optimizing cryogel properties, such as mechanical strength and release profiles, remains challenging. To advance the field, researchers are exploring advanced manufacturing techniques, biomimetic design, and addressing long-term stability. Combination therapies and drug delivery systems using cryogels show promise. In vivo evaluation and clinical trials are crucial for safety and efficacy. Overcoming practical challenges, including scalability, structural integrity, mass transfer constraints, biocompatibility, seamless integration, and cost-effectiveness, is essential. By addressing these challenges, cryogels can transform biomedical applications with innovative biomaterials.
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Affiliation(s)
- Hossein Omidian
- College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Sumana Dey Chowdhury
- College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Niloofar Babanejad
- College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
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Gupta A, Kumar Mehta S, Qayoom I, Gupta S, Singh S, Kumar A. Biofunctionalization with Cissus quadrangularis Phytobioactives Accentuates Nano-Hydroxyapatite Based Ceramic Nano-Cement for Neo-Bone Formation in Critical Sized Bone Defect. Int J Pharm 2023:123110. [PMID: 37302672 DOI: 10.1016/j.ijpharm.2023.123110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 06/02/2023] [Accepted: 06/05/2023] [Indexed: 06/13/2023]
Abstract
Developing biofunctionalized ceramic bone substitutes with phytobioactives for their sustained delivery is highly desired to enhance the osteo-active potential of ceramic bone substitutes, reduce the systemic toxicity of synthetic drugs, and increase the bioavailability of phytobioactives. The present work highlights the local delivery of phytobioactives of Cissus quadrangularis (CQ) through nano-hydroxyapatite (nHAP) based ceramic nano-cement. The phytoconstituent profiling represented the optimized CQ fraction to be rich in osteogenic polyphenols and flavonoids like quercetin, resveratrol, and their glucosides. Further, CQ phytobioactives-based formulation was biocompatible, increased bone formation, calcium deposition, proliferation, and migration of cells with simultaneous alleviation of cellular oxidative stress. In the in vivo critical-sized bone defect model, enhanced formation of highly mineralized tissue (BV mm3) in CQ phytobioactives functionalized nano-cement (10.5 ± 2 mm3) were observed compared to the control group (6.5 ± 1.2 mm3). Moreover, the addition of CQ phytobioactives to the bone nano-cement increased the fractional bone volume (BV/TV%) to 21 ± 4.2% compared to 13.1 ± 2.5% in non-functionalized nano-cement. The results demonstrated nHAP-based nano-cement as a carrier for phytobioactives which could be a promising approach for neo-bone formation in different bone defect conditions.
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Affiliation(s)
- Archita Gupta
- Department of Bioengineering and Biotechnology, Birla Institute of Technology, Mesra, Ranchi-835215, Jharkhand, India
| | - Sanjay Kumar Mehta
- Department of Bioengineering and Biotechnology, Birla Institute of Technology, Mesra, Ranchi-835215, Jharkhand, India
| | - Irfan Qayoom
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur- 208016, Uttar Pradesh, India
| | - Sneha Gupta
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur- 208016, Uttar Pradesh, India
| | - Sneha Singh
- Department of Bioengineering and Biotechnology, Birla Institute of Technology, Mesra, Ranchi-835215, Jharkhand, India.
| | - Ashok Kumar
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur- 208016, Uttar Pradesh, India; Centre for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur- 208016, Uttar Pradesh, India; The Mehta Family Centre for Engineering in Medicine, Indian Institute of Technology Kanpur, Kanpur- 208016, Uttar Pradesh, India; Centre for Nanosciences, Indian Institute of Technology Kanpur, Kanpur- 208016, Uttar Pradesh, India.
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