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Sasanti Tarini Darijanto
Pharmaceutics Research Group, School of Pharmacy, Institut Teknologi Bandung, Indonesia

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Formulasi Sediaan Liposom Nimodipin: Studi Pengaruh Komposisi Lipida Terhadap Efisiensi Inkorporasi Nimodipin dan Stabilitas Ukuran Partikel Liposom I Gusti Ngurah Saskara Putra; Sasanti Tarini Darijanto; Yeyet Cahyati Soemirtapura
Acta Pharmaceutica Indonesia Vol. 39 No. 1 & 2 (2014)
Publisher : School of Pharmacy Institut Teknologi Bandung

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Penelitian ini bertujuan untuk mengembangkan formula sediaan liposom nimodipin. Secara khusus penelitian ini dilakukan untuk mengetahui pengaruh jumlah fosfolipida dan kolesterol terhadap efisiensi inkorporasi nimodipin dan stabilitas ukuran partikel liposom. Liposom multilamelar dihasilkan menggunakan metode lapis tipis. Pengecilan ukuran partikel dilakukan menggunakan metode homogenisasi tekanan tinggi. Karaketerisasi ukuran partikel dilakukan menggunakan metode light scattering. Penetapan efisiensi inkorporasi nimodipin dilakukan menggunakan metode spektrofotometri UV derivatif. Hasil penelitian menunjukkan perbandingan mol fosfolipida/nimodipin (20:1) merupakan perbandingan optimal yang memberikan efisiensi inkorporasi nimodipin dalam liposom mendekati 100%. Rasio mol ini juga memberikan stabilita ukuran partikel yang baik pada uji freeze thaw.Kata kunci: liposom, nimodipin, fosfolipida, fosfatidilkolin, kolesterolAbstractPurpose of this research is to develop liposome formulation of nimodipine. The research specifically conducted to determine effect of phospholipid and cholesterol on nimodipine incorporation efficiency and particle size stability. Multilamellar liposome was prepared using thin-layer method. Reduction of particle size was done by high-pressure homogenization. Light scattering method was used to characterize particle size of liposome. Evaluation of incorporation efficiency was performed using UV derivative spectroscopic method. The result showed that molar ratio of phospholipid:nimodipine (20:1) was an optimal ratio in liposome formulation which could give incorporation efficiency of nimodipine approached to 100%. This ratio also provided good particle size stability in freeze thaw test.Keywords: liposome, nimodipine, phospholipid, phosphatidylcholine, cholesterol
Formulasi Sediaan Emulgel Untuk Penghantaran Transdermal Ketoprofen Sani Ega Priani; Sasanti Tarini Darijanto; Tri Suciati; Maria Immaculata Iwo
Acta Pharmaceutica Indonesia Vol. 38 No. 1 (2013)
Publisher : School of Pharmacy Institut Teknologi Bandung

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Ketoprofen adalah obat golongan anti inflamasi non-steroid (AINS) yang banyak digunakan untuk mengobati nyeri dan inflamasi. Penggunaan oral ketoprofen dapat menimbulkan berbagai efek samping sistemik. Pemakaian transdermal diketahui mampu mencapai konsentrasi efektif pada jaringan target, dengan konsentrasi plasma yang lebih rendah dibanding penggunaan oral, sehingga dapat mengurangi resiko efek samping sistemiknya. Penelitian ini bertujuan untuk membuat sediaan emulgel untuk penghantaran transdermal ketoprofen. Propilenglikol 10% dan menthol 3% digunakan sebagai peningkat penetrasi. Sediaan dievaluasi meliputi pengamatan organoleptik, pH, viskositas, serta pengujian stabilitas fisik menggunakan metode sentrifugasi dan freeze thaw. Selanjutnya dilakukan uji difusi in vitro dan uji iritasi kulit dan mata pada kelinci. Sediaan emulgel memenuhi kriteria stabilitas fisik berdasarkan uji sentrifugasi dan freeze thaw. Nilai pH dan viskositas sediaan relatif stabil selama kurun waktu penyimapanan 120 hari pada suhu kamar. Propilenglikol dan mentol dapat meningkatkan difusi perkutan ketoprofen, yang berbeda signifikan dibandingkan emulgel tanpat peningkat penetrasi (p<0,05). Formula emulgel bersifat sedikit mengiritasi kulit dengan nilai indeks iritasi kutan 0,83-1,17 (nilai maksimal 8), tetapi tidak mengiritasi mata.Kata kunci: Ketoprofen, transdermal, emulgel, peningkat penetrasi.AbstractKetoprofen as an non-steroidal anti-inflammatory drugs (NSAIDs) used for pain and inflamation treatment. However, there are some serious adverse effects associated with oral use of NSAIDs. Transdermal route is known to reach effective local concentration with low plasma concentration resulting in reduction systemic adverse effects. The objectives of this study was to formulate emulgel of ketoprofen for transdermal delivery. Ketoprofen emulgel was prepared using 10% of propilene glycol and 3% of menthol as penetrant enhancer. Evaluation of preparation included organoleptic evaluation, pH, viscocity, and physical stability test using centrifugation and freeze thaw method. Skin permeation was evaluated in vitro using spangler membrane and irritation effect test on rabbits. Emulgels were stable after centrifugation and freeze thaw test. The viscosity and pH of preparations were relatively stable during storage at room temperature for 120 days. Propylenglycol and menthol increased diffusion rate of ketoprofen, differ significantly from emulgel without enhancer (p<0.05). Emulgel preparation were slightly irritate to the skin with irritation index 0.83-1.17 (maximum value 8) but was not irritate to the eyes.Keywords: Ketoprofen, transdermal, emulgel, penetrant enhancer
Pembuatan Sediaan Oral Sustained Release Metformin HCl dalam Bentuk Mikrosfer Pautan Silang Alginat Ratna Annisa Utami; Sukmadjaja Asyarie; Sasanti Tarini Darijanto
Acta Pharmaceutica Indonesia Vol. 38 No. 3 (2013)
Publisher : School of Pharmacy Institut Teknologi Bandung

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Metformin hidroklorida (MH) memiliki bioavailabilitas yang relatif rendah dan waktu paruh pendek sehingga dibutuhkan sediaan dengan sistem sustained release, salah satu bentuknya adalah mikrosfer. Pembuatan mikrosfer dilakukan dengan cara teknik emulsifikasi diikuti pautan silang dengan ion kalsium secara gelasi internal dan eksternal. Hasil menunjukkan mikrosfer mengandung MH yang dihasilkan dengan metode emulsifikasi-gelasi eksternal lebih baik dibandingkan dengan gelasi internal dilihat dari efisiensi penjeratan, bentuk dan karakteristik mikrosfer serta distribusi ukuran partikel. Hasil Scanning Electron Micrograph (SEM) menunjukkan kedua mikrosfer hasil gelasi eksternal ataupun internal memiliki bentuk kurang sferis tapi tidak membentuk agregat, permukaan mikrosfer hasil gelasi internal lebih berpori dibandingkan dengan hasil gelasi eksternal serta pada kedua permukaan mikrosfer terlihat adanya MH. Efisiensi penjeratan paling optimal ditunjukkan oleh formula dengan gelasi eksternal (ME 16.2) yaitu 67,47% } 1,91 dengan profil pelepasan menunjukkan bahwa mikrosfer dapat memberikan pelepasan diperlambat hingga 8 jam dengan kinetika pelepasan mendekati kinetika pelepasan orde satu yaitu r2=0,940 untuk pelepasan di CSL pH 1,2 dan r2=0,984 untuk pelepasan di CSU pH 6,8.Kata kunci: Metformin HCl, mikroenkapsulasi, gelasi eksternal dan gelasi internal, mikrosfer, natrium alginat.AbstractMetformin hydrochloride (MH) have low bioavailability and short half life therefore require sustained release dosage form, one of its forms is microspheres. Microspheres was prepared by emulsification technique followed by cross linking with calcium ions by external and internal gelation method. The result showed that MH microspheres produced by external gelation were better than internal gelation based on entrapment efficiency, shape and characteristics of the microspheres also particle size distribution. Scanning Electron Micrograph (SEM) picture showed both microsphere from internal and external gelation method have irregular shape, discrete and there is no aggregation. Microspheres surface from internal gelation method more porous than external gelation and there is MH on both microspheres surface. Most optimal entrapment efficiency showed by formula with external gelation method (ME 16.2) is 67.47% } 1.91 with drug release profile showed that microspheres can sustained MH release until 8 hours with drug kinetic release close to first order, it have r2=0.940 for release in SGF pH 1.2 and r2=0984 for release in CSU pH 6.8.Keywords: Metformin HCl, microencapsulation, external gelation and internal gelation, microsphere, sodium alginate.
Formulasi dan Evaluasi Efek Anti Kerut Mikroemulsi Ekstrak Beras Hitam (Oryza sativa L.) Ardian Baitariza; Sasanti Tarini Darijanto; Jessie Sofia Pamudji; Irda Fidrianny
Acta Pharmaceutica Indonesia Vol. 38 No. 4 (2013)
Publisher : School of Pharmacy Institut Teknologi Bandung

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Telah dilakukan formulasi mikroemulsi ekstrak beras hitam (Oryza sativa L.) dan evaluasi efek anti kerutnya secara in vivo. Hasil menunjukkan bahwa formula mikroemulsi ekstrak beras hitam yang stabil memiliki komposisi ekstrak beras hitam 4%, VCO 28,8%, Croduret-50-SS 28,8%, gliserin 28,8%, dan dapar sitrat fosfat 9,6% pada pH 3,0. Efektivitas anti kerut ekstrak beras hitam dalam sediaan mikroemulsi lebih besar daripada dalam sediaan emulsi. Penurunan rata-rata level kerut oleh mikroemulsi ekstrak beras hitam adalah 44,46%±19,7%, sedangkan oleh emulsi ekstrak beras hitam adalah 36,6%±19,5%.Kata kunci: beras hitam, mikroemulsi, antikerutAbstractFormulation of black rice extract (Oryza sativa L.) microemulsion and evaluation of its anti-wrinkle effect in vivo have been investigated. The results showed that black rice extract microemulsion has composition as black rice extract of 4%, VCO of 28.8%, Croduret-50-SS of 28.8%, glycerol of 28.8%, and citrate-phosphate buffer pH 3.0 of 9.6%. The anti-wrinkle effectivity of black rice extract in microemulsion form was more than in emulsion form. The average decrease of wrinkle level by black rice extract microemulsion was 44.46%±19.7%, and by black rice extract emulsion was 36.6%±19.5%.Keywords: black rice, microemulsion, anti-wrinkle
Co-Authors Ardian Baitariza I Gusti Ngurah Saskara Putra Irda Fidrianny Jessie Sofia Pamudji Maria Immaculata Iwo Ratna Annisa Utami Sani Ega Priani Sukmadjaja Asyarie Tri Suciati Yeyet Cahyati Soemirtapura