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Ding K, Cong W, Liu Y, Song C, Mi H, Liu C, Ma Y, Shen C. Antibacterial polyurethane foams with quaternized-chitosan as a chain extender for nasal packing and hemostasis. Acta Biomater 2024; 181:249-262. [PMID: 38704113 DOI: 10.1016/j.actbio.2024.04.041] [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] [Received: 12/21/2023] [Revised: 04/23/2024] [Accepted: 04/25/2024] [Indexed: 05/06/2024]
Abstract
Endoscopic surgery is an effective and common clinical practice for chronic sinusitis. Nasal packing materials are applied in nasal surgery to prevent hemorrhage and promote wound healing. In this study, a degradable polyurethane foam dressing is successfully developed as a promising nasal packing material with good biocompatibility and antibacterial capability. Specifically, quaternized chitosan (QCS) serves as the crosslinker instead of polyols to offer polyurethane foam (PUF-QCS) antibacterial capability. The PUF-QCS2.0 % (with 2.0 wt% QCS) exhibits satisfactory liquid absorption capacity (19.4 g/g), high compressive strengths at both wet (14.5 kPa) and dry states (7.7 kPa), and a good degradation rate (8.3 %) within 7 days. Meanwhile, PUF-QCS2.0 % retains long-term antibacterial activity for 7 days and kills 97.3 % of S. aureus and 91.8 % of E. coli within 6 hours in antibacterial testing. Furthermore, PUF-QCS2.0 % demonstrates a positive hemostatic response in the rabbit nasal septum mucosa trauma model by reducing hemostatic time over 50.0 % and decreasing blood loss up to 76.1 % compared to the commercial PVA nasal packing sponge. Importantly, PUF-QCS also exhibits a significant antibacterial activity in nasal cavity. This nasal packing material has advantages in post-surgery bleeding control and infection prevention. STATEMENT OF SIGNIFICANCE: The performance of a nasal packing sponge requires good mechanical properties, fast and high liquid absorption rate, effective degradability and strong antibacterial activity. These features are helpful for improving the postoperative recovery and patient healing. However, integrating these into a single polyurethane foam is a challenge. In this study, quaternized chitosan (QCS) is synthesized and used as a chain extender and antibacterial agent in preparing a degradable polyurethane foam (PUF-QCS) dressing. PUF-QCS undergoes partial degradation and exhibits effective broad-spectrum antibacterial activity in 7 days. The reduction of postoperative bleeding and infection observed in the animal experiment further demonstrates that the PUF-QCS developed here outperforms the existing commercial nasal packing materials.
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Affiliation(s)
- Kaidi Ding
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou 450002, China
| | - Wenlong Cong
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ying Liu
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Changtong Song
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Haoyang Mi
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou 450002, China
| | - Chuntai Liu
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou 450002, China
| | - Yuhong Ma
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Changyu Shen
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou 450002, China.
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Polysaccharide Based Implantable Drug Delivery: Development Strategies, Regulatory Requirements, and Future Perspectives. POLYSACCHARIDES 2022. [DOI: 10.3390/polysaccharides3030037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Implantable drug delivery systems advocate a wide array of potential benefits, including effective administration of drugs at lower concentrations and fewer side-effects whilst increasing patient compliance. Amongst several polymers used for fabricating implants, biopolymers such as polysaccharides are known for modulating drug delivery attributes as desired. The review describes the strategies employed for the development of polysaccharide-based implants. A comprehensive understanding of several polysaccharide polymers such as starch, cellulose, alginate, chitosan, pullulan, carrageenan, dextran, hyaluronic acid, agar, pectin, gellan gum is presented. Moreover, biomedical applications of these polysaccharide-based implantable devices along with the recent advancements carried out in the development of these systems have been mentioned. Implants for the oral cavity, nasal cavity, bone, ocular use, and antiviral therapy have been discussed in detail. The regulatory considerations with respect to implantable drug delivery has also been emphasized in the present work. This article aims to provide insights into the developmental strategies for polysaccharide-based implants.
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Navya PV, Gayathri V, Samanta D, Sampath S. Bacterial cellulose: A promising biopolymer with interesting properties and applications. Int J Biol Macromol 2022; 220:435-461. [PMID: 35963354 DOI: 10.1016/j.ijbiomac.2022.08.056] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 07/24/2022] [Accepted: 08/08/2022] [Indexed: 11/24/2022]
Abstract
The ever-increasing demands for materials with desirable properties led to the development of materials that impose unfavorable influences on the environment and the ecosystem. Developing a low-cost, durable, and eco-friendly functional material with biological origins has become necessary to avoid these consequences. Bacterial cellulose generated by bacteria dispenses excellent structural and functional properties and satisfies these requirements. BC and BC-derived materials are essential in developing pure and environmentally safe functional materials. This review offers a detailed understanding of the biosynthesis of BC, properties, various functionalization methods, and applicability in biomedical, water treatment, food storage, energy conversion, and energy storage applications.
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Affiliation(s)
- P V Navya
- Department of Materials Science, School of Technology, Central University of Tamil Nadu, Thiruvarur 610101, India.
| | - Varnakumar Gayathri
- Polymer Science and Technology Department, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
| | - Debasis Samanta
- Polymer Science and Technology Department, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
| | - Srinivasan Sampath
- Department of Materials Science, School of Technology, Central University of Tamil Nadu, Thiruvarur 610101, India.
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Kasi G, Gnanasekar S, Zhang K, Kang ET, Xu LQ. Polyurethane‐based
composites with promising antibacterial properties. J Appl Polym Sci 2022. [DOI: 10.1002/app.52181] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Gopinath Kasi
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies School of Materials and Energy Southwest University Chongqing China
| | - Sathishkumar Gnanasekar
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies School of Materials and Energy Southwest University Chongqing China
| | - Kai Zhang
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies School of Materials and Energy Southwest University Chongqing China
| | - En Tang Kang
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies School of Materials and Energy Southwest University Chongqing China
- Department of Chemical and Biomolecular Engineering National University of Singapore Kent Ridge Singapore
| | - Li Qun Xu
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies School of Materials and Energy Southwest University Chongqing China
- Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province College of Chemistry and Chemical Engineering, Hainan Normal University Haikou China
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Hormaiztegui MEV, Marin D, Gañán P, Stefani PM, Mucci V, Aranguren MI. Nanocelluloses Reinforced Bio-Waterborne Polyurethane. Polymers (Basel) 2021; 13:polym13172853. [PMID: 34502892 PMCID: PMC8434354 DOI: 10.3390/polym13172853] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/19/2021] [Accepted: 08/21/2021] [Indexed: 11/16/2022] Open
Abstract
The aim of this work was to evaluate the influence of two kinds of bio- nano-reinforcements, cellulose nanocrystals (CNCs) and bacterial cellulose (BC), on the properties of castor oil-based waterborne polyurethane (WBPU) films. CNCs were obtained by the acidolysis of microcrystalline cellulose, while BC was produced from Komagataeibacter medellinensis. A WBPU/BC composite was prepared by the impregnation of a wet BC membrane and further drying, while the WBPU/CNC composite was obtained by casting. The nanoreinforcement was adequately dispersed in the polymer using any of the preparation methods, obtaining optically transparent compounds. Thermal gravimetric analysis, Fourier-transform infrared spectroscopy, field emission scanning electron microscopy, dynamical mechanical analysis, differential scanning calorimetry, contact angle, and water absorption tests were carried out to analyze the chemical, physical, and thermal properties, as well as the morphology of nanocelluloses and composites. The incorporation of nanoreinforcements into the formulation increased the storage modulus above the glass transition temperature of the polymer. The thermal stability of the BC-reinforced composites was slightly higher than that of the CNC composites. In addition, BC allowed maintaining the structural integrity of the composites films, when they were immersed in water. The results were related to the relatively high thermal stability and the particular three-dimensional interconnected reticular morphology of BC.
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Affiliation(s)
- M. E. Victoria Hormaiztegui
- Facultad de Ingeniería, Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), UNMDP, CONICET, Av. Juan B Justo 4302, Mar del Plata 7600, Argentina; (M.E.V.H.); (D.M.); (P.M.S.); (V.M.)
- Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales (CITEMA), Facultad Regional La Plata, Universidad Tecnológica Nacional (UTN)-Comisión de Investigaciones Científicas de la Provincia de Buenos Aires (CIC), Av. 60 y 124, Berisso 1923, Argentina
| | - Diana Marin
- Facultad de Ingeniería, Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), UNMDP, CONICET, Av. Juan B Justo 4302, Mar del Plata 7600, Argentina; (M.E.V.H.); (D.M.); (P.M.S.); (V.M.)
| | - Piedad Gañán
- Facultad de Ingeniería Química, Universidad Pontificia Bolivariana (UPB), Circular 1, No 70-01, Medellín 050031, Colombia;
| | - Pablo Marcelo Stefani
- Facultad de Ingeniería, Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), UNMDP, CONICET, Av. Juan B Justo 4302, Mar del Plata 7600, Argentina; (M.E.V.H.); (D.M.); (P.M.S.); (V.M.)
| | - Verónica Mucci
- Facultad de Ingeniería, Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), UNMDP, CONICET, Av. Juan B Justo 4302, Mar del Plata 7600, Argentina; (M.E.V.H.); (D.M.); (P.M.S.); (V.M.)
| | - Mirta I. Aranguren
- Facultad de Ingeniería, Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), UNMDP, CONICET, Av. Juan B Justo 4302, Mar del Plata 7600, Argentina; (M.E.V.H.); (D.M.); (P.M.S.); (V.M.)
- Correspondence:
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