Amalia, Firda and Widianto, Joshfira Eurika (2026) Optimasi Konsentrasi ZnO Pada Hidrogel CMC/CS/SA–Tanin Piper Crocatum Sebagai Wound Dressing Antibakteri Dan Antioksidan. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Luka kulit merupakan masalah klinis yang signifikan dengan prevalensi cedera di Indonesia mencapai 9,2% dan didominasi oleh luka lecet, sayat, serta robek yang rentan mengalami infeksi. Keterbatasan balutan luka konvensional dalam mengontrol infeksi, menjaga kelembapan, dan mendukung regenerasi jaringan mendorong pengembangan wound dressing berbasis hidrogel. Proyek akhir ini bertujuan untuk mengetahui pengaruh variasi konsentrasi ZnO terhadap sifat fisikokimia dan performa hidrogel CMC/CS/SA-TA sebagai wound dressing. Hidrogel disintesis menggunakan metode sol-gel dengan penambahan ZnO melalui ultrasonifikasi pada konsentrasi 0,5, 0,75, 1, 1,5, dan 2% (b/b). FTIR menunjukkan pergeseran pita serapan O-H dari 3391 menjadi 3369 cm⁻¹ yang mengindikasikan interaksi koordinasi antara ZnO dan matriks hidrogel. Karakterisasi SEM-EDX mengonfirmasi distribusi ZnO dalam hidrogel melalui kandungan Zn sebesar 1,65%. Penambahan ZnO meningkatkan kapasitas swelling hingga 291%, menghasilkan nilai WVTR yang sesuai untuk wound dressing, dan menghasilkan sifat mekanik yang sesuai untuk aplikasi wound dressing pada konsentrasi 0,75-2% ZnO. Hidrogel dengan 1% ZnO menunjukkan aktivitas antioksidan sebesar 80,54%, aktivitas antibakteri terhadap Staphylococcus aureus dan Pseudomonas aeruginosa dengan zona hambat masing-masing sebesar 7,65 mm dan 6,25 mm, serta viabilitas sel sebesar 87,39% yang menunjukkan material tidak toksik berdasarkan ISO 10993-5. Sebaliknya, hidrogel dengan 2% ZnO menunjukkan wound closure rate sebesar 81,25%, lebih rendah dibandingkan kontrol sebesar 98,57%, serta viabilitas sel sebesar 35,55% yang mengindikasikan efek sitotoksik. Variasi konsentrasi ZnO memengaruhi karakteristik hidrogel, biokompatibilitas, dan performanya sebagai wound dressing, dengan konsentrasi optimum diperoleh pada 1% ZnO.
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Skin wounds are a significant clinical problem, with an injury prevalence of 9.2% in Indonesia, predominantly consisting of abrasions, lacerations, and cuts that are highly susceptible to infection. The limitations of conventional wound dressings in preventing infection, maintaining a moist environment, and promoting tissue regeneration have encouraged the development of hydrogel-based wound dressings. This study aimed to investigate the effect of ZnO concentration on the physicochemical properties and performance of CMC/CS/SA-TA hydrogels as wound dressings. The hydrogels were synthesized using a sol-gel method, with ZnO incorporated by ultrasonication at concentrations of 0.5, 0.75, 1, 1.5, and 2 wt%. FTIR analysis revealed a shift in the O-H absorption band from 3391 to 3369 cm⁻¹, indicating coordination interactions between ZnO and the hydrogel matrix. SEM-EDX characterization confirmed the homogeneous distribution of ZnO, with a Zn content of 1.65%. The incorporation of ZnO increased the swelling capacity to 291%, resulted in WVTR values within the desirable range for wound dressing applications, and achieved suitable mechanical properties at ZnO concentrations of 0.75–2%. The hydrogel containing 1 wt% ZnO exhibited 80.54% antioxidant activity, antibacterial activity against Staphylococcus aureus and Pseudomonas aeruginosa with inhibition zones of 7.65 mm and 6.25 mm, respectively, and a cell viability of 87.39%, indicating non-cytotoxicity according to ISO 10993-5. In contrast, the hydrogel containing 2 wt% ZnO showed a wound closure rate of 81.25%, lower than the control (98.57%), and a cell viability of 35.55%, indicating cytotoxicity. Overall, ZnO concentration significantly influenced the hydrogel's physicochemical properties, biocompatibility, and wound dressing performance, with 1 wt% ZnO identified as the optimal formulation.
| Item Type: | Thesis (Other) |
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| Uncontrolled Keywords: | Antibakteri, Antioksidan, Ultrasonifikasi, Pembalut luka Antibacterial, Antioxidant, Ultrasonication, Wound dressing |
| Subjects: | R Medicine > RL Dermatology T Technology > TP Chemical technology > TP1140 Polymers |
| Divisions: | Faculty of Vocational > 24305-Industrial Chemical Engineering |
| Depositing User: | Firda Amalia |
| Date Deposited: | 28 Jul 2026 02:19 |
| Last Modified: | 28 Jul 2026 02:19 |
| URI: | http://repository.its.ac.id/id/eprint/137951 |
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