Judul: Kadar Ion Fe pada Jaringan Otot Peri-implan Tikus dengan Implan Biodegradasi Fe Berpori
Abstrak: Tujuan dari penelitian ini adalah untuk mengukur kadar ion Fe yang berasal dari proses degradasi implan logam Fe berpori pada jaringan otot paha peri-implan tikus. Penelitian ini menggunakan 60 ekor tikus putih Sprague Dawley dengan rataan berat 175 gram. Tikus dibagi menjadi empat kelompok berdasarkan ukuran pori implan 450 μm, 580 μm, dan 800 μm serta kontrol. Hewan diimplan di bagian os femur kemudian dilakukan pengambilan sampel otot peri-implan pada hari ke-7, 14, dan 30 pascaoperasi. Kadar ion Fe pada sampel otot peri-implan diukur menggunakan atomic absorption spectrophotometer (AAS). Pada semua jaringan otot peri-implan dari keempat kelompok perlakuan terdeteksi adanya ion Fe. Kadar ion Fe di jaringan otot paha peri-implan tikus mengalami peningkatan terutama otot yang dekat dari implan dibandingkan otot yang jauh dari implan (p<0.05). Peningkatan kadar ion Fe paling tinggi ditunjukkan oleh jaringan otot yang diimplan dengan implan Fe berpori 450 μm pada hari pengamatan ke-7 dibandingkan dengan implan yang lain (p<0.05). Secara umum, kadar ion Fe mengalami penurunan selama 30 hari pengamatan. Berdasarkan hasil tersebut disimpulkan bahwa kadar ion Fe lebih tinggi pada jaringan otot paha peri-implan tikus yang dekat dari implan dan secara umum mengalami penurunan konsentrasi sepanjang waktu pengamatan.
Keyword: Implan Fe berpori, jaringan otot peri-implan, kadar ion Fe

Judul: Pengamatan Makroskopis Biodegradasi Implan Logam Berbahan Dasar Besi pada Mencit
Abstrak: Biodegradation of metal implants is metal corrosion process due to the reaction between the metal with the substances in the environment, especially the environment of the body. The aim of this study is to examine the biodegradation behavior of iron based metal implants in mice. This study used 40 adult male ddy mice 30-35g. Mice were divided into 4 groups, Fe (iron wire) n=12, Fe-Cr (iron coated by chromium) n=12, SS 316L (stainless steel) n=12, and control (n=4). The implantation of materials was placed the hip area/intramuscularly (IM) and thigh area/subcutaneously (SC). Macroscopic study of biodegradation iron based metal implants were material changes examination, evaluation of carat formed, the corrosion rate, and the weight loss. The result showed the greatest damage occurred in Fe, followed by Fe-Cr and last a relatively no damage is SS 316L implant. The subcutaneously implanted material suffered higher damage than the intramuscularly implanted material. The greatest corrosion rate occurred in Fe implant. The corrosion rate of Fe-Cr lower than Fe implant (P<0.05) at the first time of implantation. The weight loss of Fe not significantly differ (P>0.05) as the weight loss of Fe-Cr at the first time of implantation, but its lower than the weight lose of Fe-Cr implant (P<0.05) at the last time of implantation. SS 316L implant not showed the corrosion rate and the weight loss. As a conclusion , Fe and Fe-Cr implants were potentially as implant materials that can be degraded and therefore could be use for medical applications.
Keyword: mice, iron based metal implant, biomaterial, biodegradable

Judul: Evaluasi kesesuaian lahan untuk tanaman alpukat (Persia americana Mill) pada andosol Sukamantri, latosol Ciawi dan latosol Dramaga, Bogor
Abstrak: Today in Indonesia, avocado crop still represent as a farm yard, not yet cultivated commercially in agribusiness scale. Spreading not yet flattened and rather tardy, only two provinces that are West Java and East Java, which becoming especial centre production in Indonesia.
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