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Tan C, Dima C, Huang M, Assadpour E, Wang J, Sun B, Kharazmi MS, Jafari SM. Advanced CaCO3-derived delivery systems for bioactive compounds. Adv Colloid Interface Sci 2022; 309:102791. [DOI: 10.1016/j.cis.2022.102791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 09/26/2022] [Accepted: 09/26/2022] [Indexed: 11/16/2022]
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Sronsri C, Sittipol W, U-Yen K. Effect of the magnetic field produced by a Halbach array magnetizer on water UV absorption, removal of scale and change in calcium carbonate polymorphs. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:2485-2496. [PMID: 35700532 DOI: 10.1039/d2ay00569g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In this paper, the influence of magnetic fields on the ultraviolet (UV) absorption of water circulated within three different magnetic configurations (inside, outside, and dual Halbach array magnetizers) is presented. Permanent magnets were inserted in the designed magnetizer and magnetic flux densities were varied between 380 and 580 mT. The samples presented evident UV absorption under magnetic fields due to the change of polarization in water molecules. The effectiveness of the magnetic field to remove the scale was investigated by measuring the calcium ion concentration after magnetic treatment. The dual Halbach array configuration enhanced scale removal by 41.4% at a water flow rate of 380 ± 3 mL min-1. Different magnetic configurations were used to study the magnetic effect on calcite-aragonite CaCO3 polymorphs. The magnetic memory of the magnetizer was assessed using the percentage formation of aragonite crystals. Overall, magnetizers improved the aragonite formation. Dual Halbach array magnetizers yielded the highest aragonite percentage. Even after 24 h (memory effect) of storage, the presence of the magnetic effect indicated the superiority of the proposed method for scale removal. Thus, magnetic technology is an environmentally friendly, cost-effective, and simple treatment for scale removal.
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Affiliation(s)
- Chuchai Sronsri
- Future Innovation & Research in Science and Technology, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Wanpasuk Sittipol
- Future Innovation & Research in Science and Technology, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Kongpop U-Yen
- Future Innovation & Research in Science and Technology, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand.
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Ahmed MK, Awwad NS, Ibrahium HA, Mostafa MS, Alqahtani MS, El-Morsy MA. Hydroxyapatite and Er2O3 are embedded within graphene oxide nanosheets for high improvement of their hardness and biological responses. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02249-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Factors controlling and influencing polymorphism, morphology and size of calcium carbonate synthesized through the carbonation route: A review. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2021.117050] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Kon E, Di Matteo B, Verdonk P, Drobnic M, Dulic O, Gavrilovic G, Patrascu JM, Zaslav K, Kwiatkowski G, Altschuler N, Robinson D. Aragonite-Based Scaffold for the Treatment of Joint Surface Lesions in Mild to Moderate Osteoarthritic Knees: Results of a 2-Year Multicenter Prospective Study. Am J Sports Med 2021; 49:588-598. [PMID: 33481631 DOI: 10.1177/0363546520981750] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Osteoarthritis (OA) is considered a contraindication to most cartilage repair techniques. Several regenerative approaches have been attempted with the aim of delaying or preventing joint replacement, with controversial results. Currently, there is a paucity of data on the use of single-step techniques, such as cell-free biomimetic scaffolds, for the treatment of joint surface lesions (JSLs) in OA knees. PURPOSE To present the 2-year follow-up clinical and radiological outcomes after implantation of a novel, cell-free aragonite-based scaffold for the treatment of JSLs in patients with mild to moderate knee OA in a multicenter prospective study. STUDY DESIGN Case series; Level of evidence, 4. METHODS A total of 86 patients, 60 male and 26 female, with a mean age of 37.4 ± 10.0 years, mild to moderate knee OA, and a mean defect size of 3.0 ± 1.7 cm2, were recruited at 8 medical centers according to the following criteria: radiographic mild to moderate knee OA (Kellgren-Lawrence grade 2 or 3); up to 3 treatable chondral/osteochondral defects (International Cartilage Repair Society grades 3 and 4) on the femoral condyles or trochlea; a total defect size ≤7 cm2; and no concurrent knee instability, severe axial malalignment, or systemic arthropathy. All patients were evaluated at baseline and at 6, 12, 18, and 24 months after implantation using the Knee injury and Osteoarthritis Outcome Score (KOOS) and International Knee Documentation Committee (IKDC) subjective score. Additionally, magnetic resonance imaging (MRI) was performed to assess the amount of cartilage defect filling at the repaired site. RESULTS Significant improvement on all KOOS subscales was recorded from baseline (Pain: 49.6 ± 13.1; Activities of Daily Living [ADL]: 56.1 ± 18.4; Sport: 22.8 ± 18.8; Quality of Life [QoL]: 23.5 ± 16.5; Symptoms: 55.4 ± 19.9) to the 24 months' follow-up (Pain: 79.5 ± 21.1 [P < .001]; ADL: 84.1 ± 21.4 [P < .001]; Sport: 60.8 ± 31.9 [P < .001]; QoL: 54.9 ± 30.4 [P < .001]; Symptoms: 77.7 ± 21.2 [P < .001]). The IKDC subjective score showed a similar trend and improved from 37.8 ± 14.7 at baseline to 65.8 ± 23.5 at 24 months (P < .001). MRI showed a significant increase in defect filling over time: up to 78.7% ± 25.3% of surface coverage after 24 months. Treatment failure requiring revision surgery occurred in 8 patients (9.3%). CONCLUSION The use of an aragonite-based osteochondral scaffold in patients with JSLs and mild to moderate knee OA provided significant clinical improvement at the 24-month follow-up, as reported by the patients. These findings were associated with good cartilage defect filling, as observed on MRI.
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Affiliation(s)
- Elizaveta Kon
- Department of Biomedical Sciences, Humanitas University, Milan, Italy.,Humanitas Clinical and Research Center, IRCCS, Milan, Italy
| | - Berardo Di Matteo
- Department of Biomedical Sciences, Humanitas University, Milan, Italy.,Humanitas Clinical and Research Center, IRCCS, Milan, Italy.,First Moscow State Medical University, Sechenov University, Moscow, Russia
| | - Peter Verdonk
- ORTHOCA, AZ Monica, Antwerp, Belgium.,Department of Orthopaedic Surgery, Antwerp University Hospital, Antwerp, Belgium
| | - Matej Drobnic
- Department of Orthopedic Surgery, Ljubljana University Medical Centre, Ljubljana, Slovenia
| | - Oliver Dulic
- Department of Orthopedic Surgery and Traumatology, Clinical Center of Vojvodina, Novi Sad, Serbia
| | | | - Jenel M Patrascu
- Spitalul Clinic Judeţean de Urgenţa±"Pius Brînzeu" Timişoara, Timişoara, Romania
| | - Ken Zaslav
- OrthoVirginia, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Grzegorz Kwiatkowski
- Department of Knee Surgery, Arthroscopy and Sports Trauma, District Hospital of Orthopedics and Trauma Surgery, Piekary Slaskie, Poland
| | | | - Dror Robinson
- Orthopedic Research Unit and Foot and Ankle Service, Hasharon Hospital, Rabin Medical Center, Petah Tikva, Israel
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Zhang LY, Bi Q, Zhao C, Chen JY, Cai MH, Chen XY. Recent Advances in Biomaterials for the Treatment of Bone Defects. Organogenesis 2020; 16:113-125. [PMID: 32799735 DOI: 10.1080/15476278.2020.1808428] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Bone defects or fractures generally heal in the absence of major interventions due to the high regenerative capacity of bone tissue. However, in situations of severe/large bone defects, these orchestrated regeneration mechanisms are impaired. With advances in modern medicine, natural and synthetic bio-scaffolds from bioceramics and polymers that support bone growth have emerged and gained intense research interest. In particular, scaffolds that recapitulate the molecular cues of extracellular signals, particularly growth factors, offer potential as therapeutic bone biomaterials. The current challenges for these therapies include the ability to engineer materials that mimic the biological and mechanical properties of the real bone tissue matrix, whilst simultaneously supporting bone vascularization. In this review, we discuss the very recent innovative strategies in bone biomaterial technology, including those of endogenous biomaterials and cell/drug delivery systems that promote bone regeneration. We present our understanding of their current value and efficacy, and the future perspectives for bone regenerative medicine.
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Affiliation(s)
- Le-Yi Zhang
- Department of General Surgery, Chun'an First People's Hospital (Zhejiang Provincial People's Hospital Chun'an Branch) , Hangzhou, Zhejiang Province, China
| | - Qing Bi
- Department of Orthopedics, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College) , Hangzhou, China
| | - Chen Zhao
- Department of Orthopedics, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College) , Hangzhou, China
| | - Jin-Yang Chen
- Research and Development Department, Zhejiang Healthfuture Institute for Cell-Based Applied Technology , Hangzhou, Zhejiang Province, China
| | - Mao-Hua Cai
- Department of General Surgery, Chun'an First People's Hospital (Zhejiang Provincial People's Hospital Chun'an Branch) , Hangzhou, Zhejiang Province, China
| | - Xiao-Yi Chen
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College) , Hangzhou, China.,Clinical Research Institute, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College) , Hangzhou, China
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Kon E, Robinson D, Shani J, Alves A, Di Matteo B, Ashmore K, De Caro F, Dulic O, Altschuler N. Reconstruction of Large Osteochondral Defects Using a Hemicondylar Aragonite-Based Implant in a Caprine Model. Arthroscopy 2020; 36:1884-1894. [PMID: 32114064 DOI: 10.1016/j.arthro.2020.02.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 02/16/2020] [Accepted: 02/16/2020] [Indexed: 02/02/2023]
Abstract
PURPOSE To investigate the safety and regenerative potential of a hemicondylar aragonite-based scaffold in the reconstruction of large osteochondral lesions occupying an extensive portion of the medial femoral condyle in a goat model. METHODS Eight Saanen goats were treated by the implantation of an aragonite-based scaffold (size: 19 × 8 × 8 mm) on a previously prepared hemicondylar osteochondral defect located in the right medial femoral condyle of the knee. Goats were euthanized after 12 months and the specimens underwent X-ray imaging, macroscopic, micro-computed tomography, histology, and immunohistochemistry evaluations to assess subchondral bone and cartilage regeneration. RESULTS In all 8 goats, no adverse event or persistent inflammation was observed. The evaluations performed showed integration of the scaffold, which almost completely resorbed at 12 months. In all animals, no signs of osteoarthritis progression were seen. Concurrent regeneration of the osteochondral unit was observed, with trabecular bone tissue replacing the implant and restoring the subchondral layer, and the formation of an overlying hyaline cartilage surface, well integrated within the surrounding native tissue, also was observed. CONCLUSIONS The use of the hemicondylar biphasic aragonite-based implant in the treatment of osteochondral defects in the goat model proved to be technically feasible and safe. The scaffold degraded and was replaced by regenerated tissue within the 12-month study period, restoring the osteochondral unit both at the level of the cartilaginous layer and the subchondral bone. CLINICAL RELEVANCE The present animal study describes a scaffold-based procedure for the treatment of large condylar defects, which often require massive allograft or unicompartmental replacement. The aragonite-based implant promoted a regeneration of both cartilage and subchondral bone, and its use as a "biologic" unicondylar prosthesis might be feasible also in the clinical setting.
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Affiliation(s)
- Elizaveta Kon
- Department of Biomedical Sciences, Humanitas University, Milan, Italy; Humanitas Clinical and Research Center, Milan, Italy; First Moscow State Medical University Sechenov University, Bol'shaya Pirogovskaya Ulitsa, Moscow, Russia
| | - Dror Robinson
- Department of Orthopedics, Hasharon Hospital, Rabin Medical Center, Petah Tikva, Israel
| | - Jonathan Shani
- Chavat Daat Veterinary Referral Center, Beit Berl, Israel
| | | | - Berardo Di Matteo
- Department of Biomedical Sciences, Humanitas University, Milan, Italy; Humanitas Clinical and Research Center, Milan, Italy; First Moscow State Medical University Sechenov University, Bol'shaya Pirogovskaya Ulitsa, Moscow, Russia.
| | - Kevin Ashmore
- Department of Biomedical Sciences, Humanitas University, Milan, Italy; Humanitas Clinical and Research Center, Milan, Italy
| | | | - Oliver Dulic
- Clinical Center of Vojvodina, Department for Orthopedic Surgery and Traumatology, Novi Sad, Serbia
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