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INDONESIA
Indonesian Journal of Applied Sciences
Published by Universitas Padjadjaran
ISSN : 20899203     EISSN : 25811991     DOI : -
Core Subject : Social,
Environmental Science
Indonesian Journal of Applied Sciences (IJAS) is a scientific journal published three times a year (April, August, December). Indonesian Journal of Applied Sciences publish original research results related to research in the field of natural science, covering a wide range of topics written in the field of knowledge: medicine, agriculture, animal husbandry, fisheries, pharmaceuticals, and other exact sciences
Arjuna Subject : -
Articles 144 Documents
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STIMULASI MUROTAL AL QURAN TERHADAP NILAI GLASGOW COMA SCALE PADA PASIEN STROKE ISKEMIK Arif Setyo Upoyo; Helwiyah Ropi; Ria Sitorus
Indonesian Journal of Applied Sciences Vol 1, No 3 (2011)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/ijas.v1i3.1885

Abstract

Stroke is main cause death in the world. The problem stroke patient is decrease of level consciousness that caused by low perfusion in reticular activating system. The aim of research identify the effect of stimulation murotal Al Quran toward increasing score of Glasgow Coma Scale (GCS) at ischemic stroke patient. Design research used quasi experiment with pre and post control group design. The total of sample were 38 patients who taked randomized. Intervention group got stimulation murotal Al Quran 30 minutes a day for 3 days. Assesment GCS was done in the first and the third day. Data was analyzed by Wilcoxon and Mann Whitney test. There were significant difference of GCS score before and after intervention (p=0.034) and significant difference of increasing GCS score between intervention and control groups (p=0.013). Stimulation murotal Al Quran had significant effect in increasing GCS score. it is recommended at ischemmic stroke patient with decrease level of consciousness. ****Stroke merupakan penyebab kematian terbesar di dunia. Masalah pasien stroke di unit keperawatan kritis adalah penurunan kesadaran akibat penurunan perfusi pada  reticular activating system. Tujuan penelitian untuk mengetahui pengaruh stimulasi murotal Al Quran terhadap peningkatan kesadaran pasien stroke iskemik. Desain penelitian adalah pre and post tes control group design. Sampel 38 pasien stroke iskemik diambil secara random. Kelompok intervensi mendapatkan stimulasi murotal Al Quran 30 menit sehari selama 3 hari. Penilaian GCS dilakukan di hari pertama dan ketiga. Data dianalisis dengan Wilxocon dan Mann Whitney test. Hasil yang didapatkan adalah terdapat perbedaan nilai GCS yang bermakna sebelum dan setelah intervensi (p = 0,034). Terdapat perbedaan peningkatan nilai GCS yang bermakna antara kelompok intervensi dan kelompok kontrol (p = 0.013). Stimulasi dengan memperdengarkan murotal Al Quran mempunyai pengaruh positif dalam meningkatkan kesadaran pasien stroke iskemik, sehingga direkomendasikan pada pasien stroke iskemik yang mengalami penurunan kesadaran.
ANALISIS NUTRISI PADA MODIFIKASI FERMENTASI BIJI KAKAO DENGAN PENAMBAHAN SACCHAROMYCES CEREVISIAE, LACTOBACILLUS PLANTARUM, ACETOBACTER ACETI, ENZIM BROMELAIN, DAN SISTEI DWIRYANI ARIZONA; IMAN PERMANA MAKSUM; R. UKUN M. S. SOEDJANAATMADJA
Indonesian Journal of Applied Sciences Vol 3, No 1 (2013)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5413.179 KB) | DOI: 10.24198/.v3i1.16829

Abstract

PENGEMBANGAN FORMULA DAN EVALUASI GEL REJUVENASI DARI ASCORBYL GLUCOSIDE MELALUI SISTEM PENGHANTARAN TEKNOLOGI MACROBEAD® - Development and Evaluation Formula Gel Rejuvenation of Ascorbyl Glucoside Through Technology Delivery System Macrobead® Retty Handayani; Endang Sutedja; Marline Abdassah Abdassah; Emma Surachman Emma Surachman
Indonesian Journal of Applied Sciences Vol 4, No 1 (2014)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7185.876 KB) | DOI: 10.24198/ijas.v4i1.16684

Abstract

AbstrakVitamin C dan derivatnya banyak digunakan dalam sediaan kosmetika sebagai pencerah kulit. Pada penelitian ini akan dikembangkan gel rejuvenasi yang mengandung derivat vitamin C ascorbyl glucoside (AA2G) dalam sistem penghantaran macrobead®. Selain sebagai pencerah kulit, AA2G juga dapat dipakai untuk pengelupasan dan peremajaan kulit (rejuvenasi). Persen jeratan ditetapkan terlebih dahulu dengan perbandingan (AA2G: macrobead®) 1:2, 2:2 dan 3:2, basis yang digunakan adalah acrylates copolymer (5%, 10%, 15%) dan alkyl acrylate crosspolymer (0,5%, 1%, 1,5%). Formulasi gel rejuvenasi dibuat dalam variasi konsentrasi AA2G yaitu 1%, 2% dan 3%. Uji efektivitas dilakukan terhadap 30 orang relawan dengan menggunakan punggung tangan bagian kanan. Uji difusi dilakukan selama 360 menit menggunakan sel difusi franz. Hasil penetapan persen jeratan menunjukan perbandingan 1:2 memiliki jeratan terbesar yaitu  88,60%. Basis alkyl acrylate crosspolymer dipilih sebagai basis paling stabil dengan konsentrasi 1%. Hasil penelitian menunjukan tangan yang diolesi formula gel terpilih (1:2) menunjukan perubahan terhadap kulit yaitu kulit lebih cerah, lebih kencang dan lebih halus dibandingkan tangan kiri sebagai kontrol.  Hasil uji difusi menunjukan bahwa formulasi gel rejuvenasi dapat melintasi membran sebesar 0,12% dalam waktu 360 menit.Kata kunci: ascorbyl glucoside, acrylates copolymer, alkyl acrylate crosspolymer, macrobead®, rejuvenasiAbstractVitamin C and its derivatives are widely used in cosmetics as a skin lightening preparations. This research will be developed rejuvenation gel containing vitamin C derivative ascorbyl glucoside (AA2G) in macrobead® delivery system. Beside as a skin lightening, AA2G can also be used for exfoliation and skin rejuvenation. Percent entrapment set beforehand by comparison (AA2G : macrobead®) 1:2, 2:2 and 3:2, the base used is acrylates copolymer (5%, 10%, 15%) and alkyl acrylate crosspolymer (0.5%, 1.0%, 1.5%). Rejuvenation gel formulation is made in various concentration of AA2G is 1%, 2% and 3% . Effectiveness test is carried out on 30 volunteers by using the back of the right hand. Diffusion test is performed for 360 minutes using a Franz diffusion cell. Determining percent entrapment results showed 1:2 ratio has the biggest trap that is 88.60%. Base alkyl acrylate crosspolymer selected as the most stable base with a concentration of 1%. The results showed that smeared hand gel formula selected (1:2) showed changes in the skin is skin brighter, firmer and smoother than the left hand as a control. The test results showed that the diffusion gel formulation of rejuvenation can traverse the membrane of 0.12% within 360 minutes.Key word : ascorbyl glucoside, acrylates copolymer, alkyl acrylate crosspolymer, macrobead®, rejuvenasi
KEBERGAMAAN SEBAGAI FAKTOR UTAMA PEMBENTUKAN KEKUATAN KARAKTER PEMUDA (Studi Analisis Pengaruh pada Mahasiswa DKI Jakarta) (Religiousity As A Determinan Factor Of Youth Character Strengths Building (Influence Analysis Study of Student College in Jakarta) ) Natris Idriyani
Indonesian Journal of Applied Sciences Vol 5, No 3 (2015)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7656.312 KB) | DOI: 10.24198/ijas.v5i3.15058

Abstract

AbstrakPenelitian ini bertujuan untuk memperoleh data empiris mengenai pengaruh keberagamaan terhadapa kekuatan karakter mahasiswa. Konsep dasar penelitian ini merujuk pada teori keutamaan dan kekuatan karakter dari Peterson dan Seligman (2004) bahwa virtues dan character strengths yang dalam bahasa Indonesia disebut keutamaan dan kekuatan karakter adalah unsur psikologis—proses atau mekanisme— yang menjelaskan keutamaan individu yang lebih spesifik atau mekanisme yang menentukan virtues. Dengan kata lain, kekuatan karakter merupakan ciri kualitas psikologis yang berbeda yang mengarah pada salah satu keutamaan karakter. Dan konsep keberagamaan berdasarkan teori fetzer (1999). Penelitian ini menggunakan pendekatan kuantitatif dan metode deskriptif analisis, teknik pengambilan sampel menggunakan probability sampling yakni dengan cluster random sampling. Sampel yang digunakan berjumlah 215 mahasiswa/i UIN Jakarta. Pada penelitian ini, penulis menggunakan alat ukur dalam bentuk skala adaptasi VIA-IS. Berdasarkan hasil penelitian diperoleh keutamaan karakter transenden yang dominan serta terdapat lima kekuatan karakter teratas yang dimiliki mahasiswa tersebut di atas adalah humor, kritis, optimis, gemar belajar, dan spirirtualis/agamis. Kelima kekuatan karakter tersebut menjadi signature strengths atau kekuatan karakter pada urutan lima teratas yang dimiliki oleh mahasiswa.Kata kunci : Keutamaan dan Kekuatan Karakter, Mahasiswa, Psikologi Positif
Kendali Tektonika terhadap Morfometri Bentang Alam Gunungapi Sunda, Jawa Barat Nana Sulaksana
Indonesian Journal of Applied Sciences Vol 1, No 2 (2011)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/ijas.v1i2.1867

Abstract

Sundanese Volcano were built by two geological systems, as reflected by its geomorphologic appearances. First, the system of tertiary sedimentary rocks stratigraphically composed by Subang Formation and successively overlayed by Kaliwangu and Citalang Formations, and Second, the quaternary volcanic rock system. This research aims to find out tectonic control on both systems by analyzing the morphometry features, and the indication of watershed morphology, by the application of the statistical verification. Data were collected through field observation including the measurement of fractures and other geomorphologic features. The Landsat image analysis and digital topographic interpretation have been undertaken to obtain the data on river segment, the direction of lineament, drainage density, bifurcation ratio of river segment, geomorphological index of Vt (high-low ratio of the valley), Vratio (cross-valley ratio), SL (index gradient of the river), Smf (Mountain-front sinuosity), and Facet percentage (Facet face of the mountains).The geomorphologic features were controlled by the tectonic development. General pattern of the azimuth direction of the fracture, the direction of alignment and the river segments in the Tertiary rocks system exhibited the same direction as the general pattern of fracture azimuth, the direction of alignment and direction of river segments in Quaternary volcanic rocks system. The tectonic control on the Tertiary rocks continued to the Quaternary volcanic rocks. Neo-tectonic evolved the Tertiary sedimentary rocks and the Quaternary volcanic rocks systems. The difference value watershed morphometry, as well as the geomorphological index values on Tertiary sedimentary rocks and Quaternary volcanic rocks demonstrated that the intensity of tectonics differ significantly in both groups. It is presumed that the tectonics in the Quaternary system was more active than the Tertiary system. In conclusion, the Tertiary and Quaternary rocks were influenced by neo-tectonics manifested in a variety of geomorphological features such as typical geomorphic depression (wedging), identifying landslides in both Tertiary and Quaternary rocks systems. The evidence might be important in analyzing the occurances of the landslide in Purbaleunyi highway connecting Jakarta and Bandung which are strongly presumed to be closely related to the neo-tectonic activities. Similarly, the attention should be drawn to anticipate the acute landsliding in the planned Cileunyi-Cirebon highway connecting Bandung and Cirebon.****Gunungapi Sunda tersusun atas dua sistem geologi yang dicerminkan oleh kenampakan geomorfologinya yaitu sistem batuan sedimen tersier yang secara stratigrafi tersusun oleh Formasi Subang dan di atasnya secara tidak selaras ditutupi Formasi Kaliwangu dan Formasi Citalang serta sistem batuan vulkanik kuarter. Metode penelitian dengan analisis variabel morfometri berupa Daerah Aliran Sungai dan Indeks Geomorfologi, serta verifikasi uji statistik. Pengambilan data dilakukan dengan melalui penelitian lapangan meliputi pengukuran azimut kekar, serta penelitian geologi lapangan lainnya. Sementara analisis melalui citra Landsat dan dijital topografi dilakukan untuk mendapatkan data arah segmen sungai, arah kelurusan, kerapatan aliran, nisbah percabangan sungai, indeks geomorfologi Vf (Perbandingan tinggi rendah lembah), Vratio (Rasio penampang lembah), SL (Indeks gradien sungai), Smf (Sinusitas muka pegunungan/ Mountain-front sinusosity), dan Facet % (Facet muka pegunungan). Pola umum azimut kekar, arah kelurusan dan arah segmen sungai pada sistem batuan sedimen Tersier memiliki arah yang sama dengan pola umum azimut kekar, arah kelurusan dan arah segmen sungai pada sistem batuan vulkanik Kuarter. Kendali tektonika yang signifikan pada batuan Tersier berlanjut hingga ke Kuarter. Dengan demikian neotektonik berkembang pada sistem batuan sedimen Tersier dan sistem batuan vulkanik Kuarter. Perbedaan nilai morfometri DAS, serta nilai indeks geomorfologi pada sistem batuan sedimen Tersier dan sistem batuan vulkanik Kuarter menunjukan bahwa intensitas tektonik pada kedua kelompok batuan berbeda. Dapat ditenggarai bahwa tektonika pada sistem Kuarter lebih aktif dari pada sistem Tersier. Secara keseluruhan batuan yang berumur Tersier dan Kuarter dipengaruhi oleh neotektonik yang dicirikan oleh berbagai fenomena geomorfologi berupa morfologi khas/ unik dan adanya zona depresi (wedging) yang dapat diidentifikasi serta longsor yang kerap terjadi pada penyebaran kedua sistem terebut. Nampaknya kejadian longsor pada bahu jalan tol Purbaleunyi tidak terlepas dari gejala neotektonik ini, selanjutnya untuk menjadi perhatian dalam perencanaan jalan tol Cileunyi - Cirebon yang akan datang.
PENGEMBANGAN METODE PENGENALAN WAJAH BERBASIS MOMENT INVARIANT DAN LINEAR DISCRIMINANT ANALYSIS SERTA IMPLEMENTASINYA PADA ROBOT Asep Sholahuddin
Indonesian Journal of Applied Sciences Vol 2, No 3 (2012)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (561.548 KB) | DOI: 10.24198/ijas.v2i3.2743

Abstract

Face recognition is one of biometrics and computer vision application, implemented widely in the fields of security, robotics and entertainment. The development of face recognition is still facing several problems such as illumination/lighting, pose and image size. Many methods have been proposed but there is still no satisfactory methodology. This research focused on a face re1cognition method based on Moment Invariant (MI) and Linear Discriminant Analysis (LDA). MI method is known as a method of producing the geometry characteristic of the object that are independent of translation, rotation, and scaling. The LDA method is a method of classification of objects by minimizing the within class object and maximizing the difference equation object. Based on these two methods, a novel method called MILDA has been successfully developed by combining moment invariant method and linear discriminant analysis. Experiments has been conducted using data from the AR-database. The database consist of 50 faces basic images which are extended into variation images by cropping, equalizing, resizing, andilluminating. The total images used in this research 450 images. Face image are grouped into two, consist of 150 training images and 300 testing images. The accuracy level of MILDA face image recognition is 92.00%. This method has been implemented on a robot using processed camera.
DAMPAK PERUBAHAN DARI POLA PERLADANGAN TERHADAP KESEJAHTERAAN PETANI TRANSMIGRAN LOKAL (Suatu Kasus di Wilayah Transmigrasi Umum Sabung SP 1 Kabupaten Sambas Provinsi Kalimantan Barat) - The Impact Of Changes From Shifting Cultivation Patterns On The Welfare Of Local Transmigrant Farmers (in The Case Of A General Transmigration Sabung Sp 1 District Sambas West Kalimantan Province) Agus Warman
Indonesian Journal of Applied Sciences Vol 5, No 2 (2015)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1975.896 KB) | DOI: 10.24198/ijas.v5i2.16658

Abstract

AbstrakSalah satu upaya untuk meningkatkan kesejahteraan petani ladang berpindah adalah dengan cara mengubah pola pertanian mereka menjadi pola pertanian menetap di lokasi transmigrasi. Tujuan penelitian  adalah : (1) Mengetahui keragaan fenomena interaksi sosial yang terjadi antara sesama petani transmigran lokal dan antara transmigran lokal dengan transmigran pendatang (2) Mengetahui proses introduksi dan adopsi  inovasi baik yang diserap dari sesama petani atau pun dari penyuluh pertanian (3) Mengetahui pencapaian adopsi inovasi teknologi oleh petani transmigran lokal dan pengaruhnya terhadap tingkat pendapatan mereka (4) Mengetahui pengaruh serapan inovasi dari sesama petani dan sikap petani terhadap kegiatan penyuluhan; ketersediaan lembaga pendukung usahatani; serta potensi Internal keluarga tani terhadap adopsi inovasi teknologi petani transmigran lokal (5) Mengukur pencapaian kesejahteraan materil dan non materil petani transmigran lokal. Penelitian ini merupakan kasus di lokasi Transmigrasi Sabung SP 1 Kabupaten Sambas Provinsi Kalimantan Barat. Merupakan penelitian survey dan alat analisis yang digunakan adalah Path Analisis dan Uji Wilcoxon. Hasil penelitian mendapatkan bahwa : a) Berkembangnya sikap kompromistis b) Belum terbentuk kepemimpinan informal. c)  Terbentuknya akulturasi dalam hal bahasa. d) Sikap petani transmigran lokal terhadap transmigran pendatang berkorelasi positif dengan rentang jarak sosial diantara mereka. e)  Rentang jarak sosial berkorelasi positif terhadap kondisi tingkat keharmonisan interaksi sosial, namun tingkat keharmonisan interaksi sosial ini tidak berpengaruh terhadap aspek kesejahteraan non materil petani transmigran lokal f)  Serapan inovasi teknologi petani transmigran lokal terkategori sangat rendah sampai rendah. g)  Transmigran lokal dan transmigran pendatang secara timbal balik saling menyerap inovasi teknologi. Tingkat keharmonisan interaksi sosial antara mereka mempengaruhi tingkat serapan inovasi, sehingga berpengaruh terhadap tingkat adopsi inovasi oleh transmigran lokal. h) Tingkat serapan inovasi dari sesama petani lebih dominan dibanding   serapan inovasi dari penyuluh. i)  Tingkat adopsi inovasi transmigran lokal berpengaruh terhadap tingkat pendapatan usahatani, namun tidak berpengaruh terhadap tingkat pendapatan total mereka. j) Tingkat serapan inovasi dari sesama petani berpengaruh  terhadap tingkat adopsi inovasi oleh petani transmigran lokal, namun  sikap petani terhadap kegiatan penyuluhan, kondisi internal petani dan tingkat ketersediaan lembaga pendukung usahatani tidak berpengaruh terhadap adopsi inovasi petani transmigran lokal. k) Rerata tingkat pendapatan usahatani transmigran lokal sebelum mengikuti transmigrasi lebih besar dibanding setelah mengikuti transmigrasi. Tingkat pendapatan total mereka setelah mengikuti program transmigrasi lebih besar dibanding sebelum mengikuti transmigrasi. Tingkat kesejahteraan non materil petani lokal setelah mengikuti program transmigrasi berada pada  kategori memuaskan dan sangat memuaskan.Kata kunci : Perubahan pola pertanian, Transmigran lokal, Kesejahteraan materil,  Kesejahteraan Non materil, Transmigrasi.AbstractOne effort to improve the welfare of shifting cultivation farmers is a way to change the pattern of their farm into a pattern of sedentary agriculture in transmigration sites. The purpose of this study was to: (1) Determine the variability phenomenon of social interactions among local homesteader and between local homesteader with migrants (2) Knowing the introduction and adoption of innovations that are absorbed from fellow farmer or from agricultural extension (3) Knowing achieving the adoption of technological innovations by farmers and local homesteader influence on the level of their income (4) Determine the influence uptake of innovation among farmers and farmers' attitudes toward counseling activities; availability of farm support agencies; and the potential Internal family farm to adoption of technological innovations farmers through local homesteader (5) Measure the achievement of material and non-material well-being of migrants local farmers. This study was a case in Transmigration locations Sabung SP 1 Sambas district of West Kalimantan Province. Analysis tool used  Path Analysis and Wilcoxon test. The results of the study found that: a) The development of an attitude of compromise b) are formed informal leadership. c) Establishment of acculturation in terms of language. d) The attitude of local farmers against migrants positively correlated with a range of social distance between them. e) The range of social distance positively correlated to the degree of harmony conditions of social interaction, but the level of social interaction of this harmony does not affect the welfare of the non-material aspects of local homesteader farmer f) Uptake local homesteader farmer technological innovation categorized very low to low. g) Local Transmigrants absorb technological innovation of migrants and vice versa. The level of harmony between their social interactions affect the rate of uptake of innovation, so that the effect on the rate of innovation adoption by local homesteader. h) The rate of uptake of innovation among farmers is more dominant than the uptake of innovation extension. i) The rate of adoption of innovation local homesteader affect the level of farm income, but do not affect the level of their total income. j) The rate of uptake of innovation among farmers affect the rate of adoption of innovations by farmers local homesteader, but the attitude of farmers to extension activities, the internal conditions of farmers and farm-level availability of supporting agencies had no effect on the adoption of a local homesteader farmer innovation. k) The mean level of farm income before following local transmigration transmigration greater than after following transmigration. The level of their total income after transmigration program bigger than before following transmigration. The level of non-material well-being of the local farmers after the transmigration program in the category satisfactory and very satisfactory.Keywords: Changing patterns of farming, local Transmigran, material welfare, Non-material welfare, Transmigration.
EFEK IMUNOMODULATOR EKSTRAK ETANOL KULIT BUAH NANAS (Ananas comosus L.Merr) TERHADAP MENCIT PUTIH JANTAN DENGAN METODE BERSIHAN KARBON (Carbon Clearance) Masayu Azizah; Wiwik Wiraningsih; Ema Ratna Sari
Indonesian Journal of Applied Sciences Vol 7, No 2 (2017)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (519.132 KB) | DOI: 10.24198/ijas.v7i2.13707

Abstract

AbstractThis research was aimed to study the immunomodulatory effect of ethanol extract of pineapple (Ananas comosus L. Merr) peel on white male mice with carbon clearance method. Animals  were divided into 5 groups: Group 1 was given tween 80 1 % v/v;Ggroup 2 was given meniran extracts; Group 3, 4 and 5 were given  ethanol extracts of pineapple peel with a dose of 125 mg/kg BW, 250 mg/kg BW, and 500 mg/kg BW,respectively, for 6 days orally. On the 7th day the animals were injected with carbon suspension 0.2 ml/20g BW at the tail vein. Blood was taken at 5th and 15th minutes using capillary pipe from the animal’s orbital retro vein, then it was diluted with 4 ml of 0.1% b/v sodium carbonate and measured its absorbance at 675 nm using visible spectrophotometer. The ethanol extract of pineapple peel showed immunomodulatory effect where the best dose was 250 mg/kg BW.  Keywords                : biological response modifiers, immunomodulatory, pineapple peel
Fabrikasi dan Karakterisasi Kristal Fotonik Satu Dimensi untuk Aplikasi Divais Laser Planar Sahrul Hidayat
Indonesian Journal of Applied Sciences Vol 1, No 1 (2011)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2280.811 KB) | DOI: 10.24198/ijas.v1i1.1843

Abstract

Fabrication of 1D photonic crystal using hybrid polymer for planar laser application has been carried out. The hybrid polymer material was synthesized by sol-gel route using 3-(Trimethoxysilyl) propyl methacrylate (TMSPMA) as monomer. Then, the hybrid polymer is modified with (4-dicyanmethylene-2-methyl-6-(p-dimethyl-aminostyryl)-4H-Pyran (DCM) by guest-host method. Fabrications of 1D photonic crystal have been conducted by Lloyd Mirror interference method. The results of characterization show that organic-dye (DCM) good incorporated with hybrid polymer in sub-micrometer scale. The hybrid polymer can change from gel into solid by irradiated using UV-light. The Lloyd Mirror interference method was used to make light patterns in sub-micrometer order for fabrication of 1D photonic crystal. We found it method is quite well for fabrication of 1D photonic crystal with various periods.******Telah dilakukan fabrikasi kristal fotonik satu dimensi (1D) dari bahan polimer hibrid, untuk diaplikasikan sebagai divais laser planar. Bahan polimer hibrid diperoleh secara sintesis dari 3-(Trimethoxysilyl)propyl methacrylate (TMSPMA) dengan metode sol-gel. Untuk mengaktifkan sifat lasingnya, prekursor polimer hibrid dimodifikasi dengan kromofor (4-dicyanmethylene-2-methyl-6-(p-dimethyl-aminostyryl)-4H-Pyran (DCM) melalui metode guest-host. Selanjutnya dilakukan fabrikasi kristal fotonik 1D dengan teknik interferensi Lloyd Mirror. Hasil pengujian menunjukkan bahwa polimer hibrid dapat bersatu secara homogen dengan kromofor DCM. Polimer hibrid dapat berubah fasa dari gel menjadi padat apabila disinari dengan cahaya UV. Fabrikasi kristal fotonik 1D dapat dilakukan dengan menggunakan berkas cahaya terpola, yang dihasilkan dari metode interferensi Lloyd Mirror. Metode tersebut telah diketahui cukup baik untuk memfabrikasi kristal fotonik 1D dengan beragam periode kisi.
ARTIKEL ULASAN: BAWANG TIWAI (ELEUTHERINE AMERICANA MERR.), TANAMAN MULTIGUNA Nisa Naspiah; Yoppi Iskandar; Moelyono Moektiwardoyo
Indonesian Journal of Applied Sciences Vol 4, No 2 (2014)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3611.247 KB) | DOI: 10.24198/.v4i2.16820

Abstract

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