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Handa M, Maharana SK, Pal K, Shukla R. Biocompatible Nanomaterials for Burns. Curr Pharm Biotechnol 2022; 23:1514-1526. [DOI: 10.2174/1389201023666220413091055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 11/30/2021] [Accepted: 02/01/2022] [Indexed: 11/22/2022]
Abstract
Abstract:
Skin being the largest organ protects our body against harmful chemicals, pathogens and physical agents. It constitutes three primarily layers - epidermis, dermis and the subcutaneous layers. Injuries occurring due to burn remains localized to skin or other organic tissues caused by flame, extreme heat, and close contact with chemicals or heated objects. Conventional treatments are available for treatment of burns however they are expensive and might completely replaces autologous tissue transfer completely. Nanotechnology based approaches include organic nanoparticles, dendrimers, hydrogels, etc. Biocompatibility usually refer ability of biomaterial of performing their respective functions centred towards medical therapy, without causing any systemic or local effects. Polymeric materials like natural (chitosan, hyaluronic acid) and synthetic (polylactic acid, polycaprolactone) are employed as biomaterials. Various preclinical and clinical studies were performed in animal models. In this review, authors have discussed elaborately on the biocompatible polymers which are used in treatment of burn wounds. Afternath, a brief discussion on the polymers, pre-clinical and clinical studies, regulatory concern related to nanomaterials also had been covered.
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Affiliation(s)
- Mayank Handa
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow, U.P., India-226002
| | - Sandeep Kr Maharana
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow, U.P., India-226002
| | - Kamlesh Pal
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow, U.P., India-226002
| | - Rahul Shukla
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow, U.P., India-226002
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Polymer pollution and its solutions with special emphasis on Poly (butylene adipate terephthalate (PBAT)). Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-04065-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Ginjupalli K, Shavi GV, Averineni RK, Bhat M, Udupa N, Nagaraja Upadhya P. Poly(α-hydroxy acid) based polymers: A review on material and degradation aspects. Polym Degrad Stab 2017. [DOI: 10.1016/j.polymdegradstab.2017.08.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Türker S, Özer AY, Kutlu B, Nohutcu R, Bilgili H, Öztürk D, Özalp M, Sungur A. Gamma Irradiation Studies I. Dental Grafts. J Med Device 2011. [DOI: 10.1115/1.4004647] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
The development of nanoceramics-polymer composites and bioactive materials such as calcium phosphates and bioglasses and ceramics especially hydroxyapatite (HAp) and β-tricalcium phosphate (TCP) for bone regeneration has been carried out for bone regeneration. Due to their resorption in the body and direct contact with tissues, it is necessary to sterilize the dental graft before administration to the patient. Three different dental graft materials including TCP, bioglass, and equine bone tissue (G1, G2, and G3, respectively) were studied in this study. The effects of γ irradiation were evaluated with different analytical methods (organoleptic analysis, FTIR, DSC, TGA, and SEM) and microbiological analysis (sterility, pyrogenity, and sterility assurance level (SAL) determination). The physicochemical results indicated that G1 is the most γ stable (optimum) dental graft material for γ radiation sterilization with minimum changes in chemical and physical properties in comparison with other two dental graft materials. G3, was the most sensitive dental graft material according to organoleptic investigations, TGA and SEM analysis. Another aspect of this study was, to investigate the effect of ethylene oxide (EtO) sterilization on optimum dental graft material, G1 and the comparison of two sterilization methods with analytical and microbiological examinations. The resorption times and resorption characteristics of γ sterilized dental graft material (G1G) and EtO sterilized one (G1E) were evaluated on New Zealand rabbits for 12 weeks. Histological studies showed that TCP containing dental graft material, G1, did not induce inflammation in bone and soft tissue. Resorption and bone formation of G1G was faster than G1E. Total resorption time of G1 was 12 weeks for both sterilization groups. The analytical, microbiological and in vivo results suggest that the dental graft G1 can be sterilized with γ radiation safely with validated doses lower than medical γ sterilization dose, 25 kGy.
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Affiliation(s)
- Selcan Türker
- Hacettepe University, Faculty of Pharmacy, Department of Radiopharmacy, 06100, Sıhhiye, Ankara, Turkey
| | - A. Yekta Özer
- Hacettepe University, Faculty of Pharmacy, Department of Radiopharmacy, 06100, Sıhhiye, Ankara, Turkey
| | - Burak Kutlu
- Hacettepe University, Faculty of Dentistry, Department of Periodontology, 06100, Sıhhiye, Ankara, Turkey
| | - Rahime Nohutcu
- Hacettepe University, Faculty of Dentistry, Department of Periodontology, 06100, Sıhhiye, Ankara, Turkey
| | - Hasan Bilgili
- Ankara University, Faculty of Veterinary Medicine, Department of Orthopaedics and Traumatology, 06110 Diskapi, Ankara, Turkey
| | - Didem Öztürk
- Ankara University, Faculty of Veterinary Medicine, Department of Orthopaedics and Traumatology, 06110 Diskapi, Ankara, Turkey
| | - Meral Özalp
- Ankara University, Faculty of Veterinary Medicine, Department of Orthopaedics and Traumatology, 06110 Diskapi, Ankara, Turkey
| | - Arzu Sungur
- Hacettepe University, Faculty of Pharmacy, Department of Pharmaceutical Microbiology, 06100 Sıhhiye, Ankara; Hacettepe University, Faculty of Medicine, Department of Pathology, 06100, Sıhhiye, Ankara, Turkey
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Ulery BD, Nair LS, Laurencin CT. Biomedical Applications of Biodegradable Polymers. JOURNAL OF POLYMER SCIENCE. PART B, POLYMER PHYSICS 2011; 49:832-864. [PMID: 21769165 PMCID: PMC3136871 DOI: 10.1002/polb.22259] [Citation(s) in RCA: 1169] [Impact Index Per Article: 89.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Utilization of polymers as biomaterials has greatly impacted the advancement of modern medicine. Specifically, polymeric biomaterials that are biodegradable provide the significant advantage of being able to be broken down and removed after they have served their function. Applications are wide ranging with degradable polymers being used clinically as surgical sutures and implants. In order to fit functional demand, materials with desired physical, chemical, biological, biomechanical and degradation properties must be selected. Fortunately, a wide range of natural and synthetic degradable polymers has been investigated for biomedical applications with novel materials constantly being developed to meet new challenges. This review summarizes the most recent advances in the field over the past 4 years, specifically highlighting new and interesting discoveries in tissue engineering and drug delivery applications.
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Affiliation(s)
- Bret D. Ulery
- Department of Orthopaedic Surgery, New England Musculoskeletal Institute, University of Connecticut Health Center, Farmington, Connecticut 06030
- Institute of Regenerative Engineering, University of Connecticut Health Center, Farmington, Connecticut 06030
| | - Lakshmi S. Nair
- Department of Orthopaedic Surgery, New England Musculoskeletal Institute, University of Connecticut Health Center, Farmington, Connecticut 06030
- Institute of Regenerative Engineering, University of Connecticut Health Center, Farmington, Connecticut 06030
- Department of Chemical, Materials & Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06268
| | - Cato T. Laurencin
- Department of Orthopaedic Surgery, New England Musculoskeletal Institute, University of Connecticut Health Center, Farmington, Connecticut 06030
- Institute of Regenerative Engineering, University of Connecticut Health Center, Farmington, Connecticut 06030
- Department of Chemical, Materials & Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06268
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First Bioabsorbable Fixation System in Craniofacial Surgery on the 15th Anniversary of Its US Utility. J Craniofac Surg 2011; 22:395-401. [DOI: 10.1097/scs.0b013e31820a564a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Petterino C, Bedin M, Vascellari M, Mutinelli F, Ratto A. An intra-abdominal malignant mesenchymoma associated with nonabsorbable sutures in a ferret (Mustela putorius furo). J Vet Diagn Invest 2010; 22:327-31. [PMID: 20224105 DOI: 10.1177/104063871002200233] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A 6-year-old ferret (Mustela putorius furo) was presented with abdominal enlargement. Clinical examination revealed an intra-abdominal mass measuring approximately 5 cm in diameter. Abdominal survey radiographs revealed a sharply marginated mass with multifocal radiodense foci, suggestive of pathologic calcification. A complete blood cell count revealed a moderate, normocytic, normochromic, nonregenerative anemia. The mass was surgically removed en bloc, fixed in 10% neutral buffered formalin solution, and routinely processed for histologic and immunohistochemical investigation. The neoplastic tissue consisted of a mixed neoplastic cell population, including osteosarcoma and fibrosarcoma components. Immunohistochemistry revealed that both neoplastic cell populations were positive for vimentin and negative for actin (smooth and striated), desmin, and myoglobin. Nonabsorbable suture material was admixed with the neoplastic tissue in the histologic section. This material was birefringent when viewed microscopically under polarized light.
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Affiliation(s)
- Claudio Petterino
- Department of Public Health, Comparative Pathology and Veterinary Hygiene School of Veterinary Medicine, University of Padua, Viale dell'Università 16, 35020, Legnaro (PD), Italy.
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Erpolat OP, Akmansu M, Dogan M, Bora H, Kurugol C, Uluoglu O. The histopathologic evaluation of soft tissue changes in rabbit extremity after different dose-fractionation schemes of interstitial high dose rate (HDR) brachytherapy. Rep Pract Oncol Radiother 2010; 15:165-71. [PMID: 24376944 DOI: 10.1016/j.rpor.2010.09.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2010] [Revised: 07/19/2010] [Accepted: 09/08/2010] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND The use of HDR in the treatment of soft tissue sarcoma had been on the rise. However, there was limited study to evaluate the effect of different fractionation schemes on soft tissue and the optimal HDR scheme. AIMS We aimed to assess the histopathologic changes on soft tissue after different HDR brachytherapy doses. METHODS The subjects were divided into three groups. Each group included 10 limbs. Group A had only an applicator without radiation, group B received a total of 24 Gy at 6 Gy per fraction, twice a day, and group C received a total of 13.5 Gy in a single fraction. The histopathologic findings were grouped into soft tissue pathology-1 (edema, inflammation, endothelial proliferation, necrosis) and soft tissue pathology-2 (atrophy, calcification, vascular hyalinization, fibrosis) (STP-1-2). RESULTS The highest mean grade values of STP-1 and STP-2 were observed in group C (0.95 and 1.45) in comparison to group A (0.45 and 0.85) and group B (0.65 and 0.9). The difference in STP-1 was found significant only between groups A and C and the difference in STP-2 was found both between groups A and C and groups B and C. CONCLUSION In our experimental study it was shown that the fractionated interstitial HDR had both lower rate and severity of toxicity in comparison to a single high dose fraction. Before using a single fractionated regimen in the clinic, the increased morbidity related to the irreversible early toxicities or progressive late toxicities should be kept in mind.
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Affiliation(s)
- Ozge Petek Erpolat
- Gazi University Medical School, Department of Radiation Oncology, Turkey
| | - Muge Akmansu
- Gazi University Medical School, Department of Radiation Oncology, Turkey
| | - Mehmet Dogan
- Gaziantep Avukat Cengiz Gokcek Government Hospital, Department of Pathology, Turkey
| | - Huseyin Bora
- Gazi University Medical School, Department of Radiation Oncology, Turkey
| | - Ceren Kurugol
- Gazi University Medical School, Department of Radiation Oncology, Turkey
| | - Omer Uluoglu
- Gazi University Medical School, Department of Pathology, Turkey
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