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Tang NFR, Armynah B, Tahir D. Structural and optical properties of alginate-based antibacterial dressing with calcium phosphate and zinc oxide for biodegradable wound painting applications. Int J Biol Macromol 2024; 276:133996. [PMID: 39032876 DOI: 10.1016/j.ijbiomac.2024.133996] [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: 01/04/2024] [Revised: 07/16/2024] [Accepted: 07/17/2024] [Indexed: 07/23/2024]
Abstract
The skin is the outermost part of the body. Although susceptible to damage, the skin is in direct contact with the external environment. Wound dressing is a clinical method that plays a vital role in wound healing. Herein, we developed an antibacterial wound dressing using alginate as the basic material. The dressing was prepared using the solvent casting method, which was used to analyze the effects of adding CaP and ZnO on its structural, optical, and antibacterial properties. Adding CaP exhibited strong but stiff mechanical properties, unlike the CaP/ZnO, which possessed high strength and elasticity. The optical properties of sample S2 did not have a considerable impact. By contrast, the addition of ZnO to sample S3 notably increases the wavelength and absorption value. The diameter of the inhibition zone for S. aureus bacteria exhibited a successive increase in its antibacterial properties, and sample S3 exhibited the highest value. Thus, sample S3 is the most promising wound dressing concerning speeding up the wound healing process because it possesses the most optimal mechanical, optical, and antibacterial properties. The main limitation to be addressed is that sample S3 cannot be easily digested in the environment.
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Affiliation(s)
| | - Bidayatul Armynah
- Physics Department, Hasanuddin Universitas, Makassar 90245, Indonesia
| | - Dahlang Tahir
- Physics Department, Hasanuddin Universitas, Makassar 90245, Indonesia.
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Poranki D, Whitener W, Howse S, Mesen T, Howse E, Burnell J, Greengauz-Roberts O, Molnar J, Van Dyke M. Evaluation of skin regeneration after burns in vivo and rescue of cells after thermal stress in vitro following treatment with a keratin biomaterial. J Biomater Appl 2013; 29:26-35. [DOI: 10.1177/0885328213513310] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Thermal burns typically display an injury pattern dictated by the transfer of the thermal energy into the skin and underlying tissues and creation of three zones of injury represented by a necrotic zone of disrupted cells and tissue, an intermediate zone of injured and dying cells, and a distant zone of stressed cells that will recover with proper treatment. The wound healing capabilities of a keratin biomaterial hydrogel were studied in two pilot studies, one using a chemical burn model in mice and the other a thermal burn model in swine. In both studies, keratin was shown to prevent enlargement of the initial wound area and promote faster wound closure. Interestingly, treating thermally stressed dermal fibroblast in culture demonstrated that soluble keratin was able to maintain cell viability and promote proliferation. Separation of so-called alpha and gamma fractions of the keratin biomaterial had differential effects, with the gamma fraction producing more pronounced cell survival and recovery. These results suggest that the gamma fraction, composed essentially of degraded alpha keratin proteins, may facilitate cell rescue after thermal injury. Treatment of burns with gamma keratin may therefore represent a potential therapy for wounds with an intermediate zone of damaged tissue that has the potential to contribute to spontaneous healing.
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Affiliation(s)
- D Poranki
- Wake Forest School of Medicine, Wake Forest Institute for Regenerative Medicine, Winston Salem, NC, USA
| | - W Whitener
- Wake Forest School of Medicine, Wake Forest Institute for Regenerative Medicine, Winston Salem, NC, USA
| | - S Howse
- Wake Forest School of Medicine, Wake Forest Institute for Regenerative Medicine, Winston Salem, NC, USA
| | - T Mesen
- Wake Forest School of Medicine, Wake Forest Institute for Regenerative Medicine, Winston Salem, NC, USA
| | - E Howse
- Wake Forest School of Medicine, Wake Forest Institute for Regenerative Medicine, Winston Salem, NC, USA
| | - J Burnell
- Wake Forest School of Medicine, Wake Forest Institute for Regenerative Medicine, Winston Salem, NC, USA
| | - O Greengauz-Roberts
- Wake Forest School of Medicine, Wake Forest Institute for Regenerative Medicine, Winston Salem, NC, USA
| | - J Molnar
- Department of Plastic and Reconstructive Surgery, Wake Forest School of Medicine, Medical Center Boulevard, Winston Salem, NC, USA
| | - M Van Dyke
- Department of Orthopaedic Surgery, Wake Forest School of Medicine, Medical Center Boulevard, Winston Salem, NC, USA
- Virginia Tech – Wake Forest University School of Biomedical Engineering and Sciences, Blacksburg, VA, USA
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Taylor L. Peristomal sore skin: assessing the effect of an alginate wafer. ACTA ACUST UNITED AC 2012; 21:S41-2, S44-6. [DOI: 10.12968/bjon.2012.21.sup16.s41] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Abstract
This study investigates whether vacuum-assisted closure (VAC) therapy, alginate or hydrocolloid dressing are most effective in the treatment of pressure ulcers. A total of 281 patients were included in this study. The response of each patient's wound was monitored, satisfactory wound closure was examined and the time taken to attain satisfactory wound closure was also taken into consideration. An original analysis of the published data was carried out. Most of the pressure ulcers showed some response in all of the categories investigated, with pressure ulcers in the VAC therapy group showing a greater response in all aspects than those in the other two groups.
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Affiliation(s)
- Noleen Smith
- Guy's, King's and St Thomas' Hospital, London, UK
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