Article Per Year (5 Year)
p-Index From 2021 - 2026
1.857
P-Index
This Author published in this journals
All Journal Jurnal Sains dan Teknologi Jurnal Sains Materi Indonesia Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Ilmiah Pertanian Indonesian Journal of Chemistry JMM (Jurnal Masyarakat Mandiri) Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Unri Conference Series: Community Engagement Indonesian Journal of Chemical Science and Technology Journal of Applied Materials and Technology Journal of Bioprocess Chemical and Environmental Engineering Science Journal of Community Engagement Research for Sustainability Indonesian Journal of Fundamental Sciences Komunita: Jurnal Pengabdian dan Pemberdayaan Masyarakat
Ahmad Fadli
Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

Published : 106 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 106 Documents
Search

 7   8   9   10   11 
Pengaruh Penambahan Pati Jagung Pada Pembuatan Prototipe Tulang Menggunakan Metode Starch Consolidation Agung Prabowo; Ahmad Fadli; Komalasari Komalasari
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Hydroxyapatite (HA) is a crystalline molecule composed of phosphorus and calcium. One technique for fabricated porous HA is the starch consolidation method. The objective of this study was to determine the effect of starch addition on porous HA. The study was conducted by mixed HA as much as 20 grams with the amount of starch 8, 10, 12 and 14 grams of corn starch, and 25 ml of distilled water to form a slurry. The slurry formed is then stirred at 400 rpm. The mixture is then poured into a mould. Then the mixture in the mould was heated to 100oC for 60 minutes. After that, the green bodies are removed from the mould and dried in an oven at 80°C for 24 hours and 110°C for 8 hours. The dried sample is then put into the furnace. Combustion is carried out at a temperature of 600˚C and ended with sintering at a temperature of 1250˚C each for 1 hour. Increasing the addition of starch causes the greater of the shrinkage and porosity, and the density and bending strength is getting smaller. Sintered bodies show shrinkage in the range of 35.47–47.46%, porosity 22.0-37.75%, density 1.97-2.46 gr / cm3, bending strength 0.33-2.33 MPa and pores size obtained is in the range of 80-150 μm.Keywords: bone replica; hydroxypatite; porosity; starch
ADHESIVE BEHAVIOR OF POLYCAPROLACTONE/HYDROXYAPATITE COATINGS ON 316L STAINLESS STEEL: A DESIGN OF EXPERIMENTS APPROACH Agung Prabowo; Ahmad Fadli; Heni Sugesti; Muh Irwan; Syarifuddin Oko; Gading Bagus Mahardika; Marlinda
Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Vol. 7 No. 2 (2025): Literasi Artikel Penelitian Kimia
Publisher : Program Studi Kimia, Fakultas MIPA, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jc.v7i2.6212

Abstract

Enhancing the adhesive strength of bioactive coatings is crucial for improving the mechanical stability of metallic implants. This study investigates the effects of three processing parameters—sonication temperature (X₁), PCL/HA ratio (X₂), and drying time (X₃)—on the adhesive strength of poly(ε-caprolactone)/hydroxyapatite (PCL/HA) composite coatings applied to 316L stainless steel substrates. A full factorial 23 experimental design was employed, and the results were analyzed using analysis of variance (ANOVA) and regression modeling. The adhesive strength response ranged from 19.62 MPa to 63.27 MPa. Among the factors studied, the PCL/HA ratio had the most significant positive effect, while drying time showed a minor influence. Interaction plots and response surface analyses revealed a synergistic effect between sonication temperature and PCL/HA ratio, contributing to improved bonding at the coating-substrate interface. The optimization results yielded a predicted maximum adhesive strength of 25.76 MPa at a desirability score of 0.03, highlighting the complexity of parameter interactions. These findings underscore the importance of processing conditions in tailoring coating performance for biomedical applications.
SURFACE AREA DRIVEN CRYSTALLINITY CHANGES OF HYDROXYAPATITE DURING SIMULATED BODY FLUID IMMERSION Agung Prabowo; Ahmad Fadli; Heni Sugesti; Muh Irwan
Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Vol. 8 No. 1 (2026): Literasi Artikel Penelitian Kimia
Publisher : Program Studi Kimia, Fakultas MIPA, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jc.v8i1.7420

Abstract

The bioactivity of hydroxyapatite (HA) powders is strongly influenced by surface area and crystallinity. This study evaluates the effect of surface area and Ca/P ratio on the bioactivity of HA through immersion in simulated body fluid (SBF) for 3–21 days. Structural and chemical changes were analyzed using XRD, BET, SEM–EDX, and XRF, with bioactivity assessed from XRD peak intensity at 2θ ≈ 30°, degree of crystallinity, Ca/P ratio, calcium ion concentration, and pH variation. The results show that HA maintained its crystal phase during immersion, with the degree of crystallinity varying between 82% and 96%. An initial decrease in crystallinity and peak intensity indicated early HA dissolution, followed by an increase due to apatite layer formation at intermediate immersion times. Prolonged immersion resulted in reduced crystallinity, attributed to calcium depletion and partial re-dissolution. Higher surface area accelerated calcium ion consumption and enhanced apatite formation, confirming improved bioactivity of HA in SBF
Edukasi Pembuatan Detergen Cair sebagai Upaya Pemberdayaan Ibu-Ibu PKK di Perumahan Graha Rawa Bangun Kelurahan Tuah Karya Kecamatan Tuah Madani Kota Pekanbaru Nurfatihayati; Cory Dian Al’farisi; Anisa Mutamima; Panca Setia Utama; Ahmad Fadli; Yelmida Azis; Sunarno; Suhendri; Alltop Amri Ya Habib; Ariya Eka Alel; Ririn Puji Hastuti; Yogi Yolanda; Ferdy Ashari Syawal
KOMUNITA: Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol 5 No 1 (2026): Februari
Publisher : PELITA NUSA TENGGARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60004/komunita.v5i1.499

Abstract

This community service activity aimed to enhance the knowledge and skills of PKK women in producing liquid detergent as an effort to promote community empowerment and household self-reliance. The activity was conducted in Graha Rawa Bangun Housing Area, Tuah Karya Village, Tuah Madani District, Pekanbaru City. The implementation methods included educational sessions, hands-on training on liquid detergent production, and evaluation using pre-test and post-test questionnaires. The training materials covered the introduction of raw materials, the function of each component, production procedures, and safety aspects related to the use of household chemicals. The evaluation results indicated a significant improvement in participants’ knowledge. The average level of participants’ knowledge increased from 16% in the pre-test to 85% in the post-test, with an overall improvement of 69%. Improvements were observed in both the understanding of primary cleaning agents and auxiliary ingredients in liquid detergent formulations. These findings demonstrate that an educational approach integrating simple scientific explanations with practical training is effective in enhancing participants’ capacity. The outputs of this activity include improved knowledge and skills of PKK women in producing safe and applicable liquid detergent, which has the potential to support household independence and community empowerment.
ADSORPSI DAN PELEPASAN DOXORUBICIN DARI PERMUKAAN PARTIKEL MAGNETIT/HIDROKSIAPATIT Sri Murda Niati; Ahmad Fadli; Yelmida Aziz
Jurnal Sains dan Teknologi Vol 18 No 2 (2019): Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik - Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Cancer is a disease caused by poor cell growth in body tissues. One effective method of dealing with cancer cell growthis the nanomedicine or nano drug delivery approach. Biocompatible, biodegredable and non-toxic drug deliverymaterial for the body is magnetite / hydroxyapatite composite. This research uses hydrothermal method to producemagnetite / hydroxyapatite composites. Furthermore, to determine the performance of magnetite / hydroxyapatitecomposites as drug delivery through adsorption kinetics and mathematical models of doxorubicin decay on the surfaceof the composite and the value of the mass transfer coefficient. The concentration of doxorubicin used for adsorptionwas 520, 720, 920 (ppm) with a composite mass of 0.2 0.3 0.4 and 0.5 (grams) and an adsorption temperature of 30, 40,50 (0C). The doxorubicin release model in the composite layer uses PBS solution media pH 7.4 with a temperature of370C. The results obtained for doxorubicin adsorption kinetics on composite surfaces were 71.43; 55.56; 90.91 mg/gfor temperature variations of 30, 40, 50 °C with (R2) is 0.980 and % SSE by 33% and kinetics constant adsorption0.282. Decay of doxorubicin in vitro using PBS solution was obtained. The value of the mass transfer coefficientobtained increased with the increase in the mass of the magnetite/hydroxyapatite composite, for the mass of themagnetite/hydroxyapatite composite 0.2; 0.3; 0.4; and 0.5 grams (kc) values obtained were 1.1 x 10-4 g/cm2.minute, 4.4x 10-4 g/cm2.minute, 9.9 x 10-4 g/cm2.minute and 2 , 1 x 10-3 g/cm2.minute.
SIMULASI GASIFIKASI SLUDGE LIMBAH INDUSTRI PULP DAN KERTAS Rusydy; Amun Amri; Ahmad Fadli
Jurnal Sains dan Teknologi Vol 14 No 2 (2015): Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik - Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pulp and paper industry generates solid waste around 3-4% of the total production, mostly form in sludge from the Waste Water Treatment Plant. Sludge gasification is one such technology processing sludge into syngas. The purpose of this research was to study the factors that influence the pulp and paper industry sludge gasification into syngas. This research was conducted by simulating the sludge process gasification in the fluidized bed gasifier using Aspen Plus v8.0 software. Configuration process is set out in this study is a fluidized bed gasification systems to feed sludge using O2 and steam as gasification agent. Some stages considered in the ASPEN Plus simulation to show the entire process of gasification, ie the decomposition of sludge, combustion of volatile substances, char gasification and gas-solids separation. In this simulation used sludge with ultimate value (dry basis): 48.0% C; 5.7% H; 36.3% O; 0.8% S; 1.2% N; and proximate (dry basis): water content of 40.90%; ash of 8.70%; Volatile Matter 52.1%; Fixed Carbon 41.82%; LHV 9.5 MJ / kg. Variable research: reactor temperature 600-800oC, ER 0.20 to 0.35 kg/kg, S/B 0.20-0.35 kg/kg and fixed variable operating pressure of 1 atm, sludge flow rate of 100 kg/min. The reactor temperature, Equivalent Ratio (ER), Steam/Sludge ratio (S/S) are factors that are very influential in the sludge gasification process. Increased temperatures cause the concentration of hydrogen in the syngas increased considerably (from 24.84 to 35.19%) and reduces the conversion of CO (17.07 to 15.45%). Increased ER reduces the conversion of syngas -15.85% and increase the percentage of CO2 (26.40-35.99%), ER optimum between 0.2-0.3. High steam-sludge ratio can reduce the temperature of reactor which have an effect on the rate of gasification, S/B optimum between 0.20-0.25.
Co-Authors Abdul Rasyid Achmad Noerkhaerin Putra Ade Pratama Adela Shofia Addabsi Adha Widoni Adi Maulana Putra Adi Mulyadi Putra Adrianto Ahmad Afrila Afrila Agung Prabowo Agung Prabowo Agung Prabowo Agung Prabowo Ahmad Riadi S Hasibuan Ahmad Zaki Alfarisi, Cory Dian Allailus Syah Safara Allailus Syah Safara Alltop Amri Ya Habib Amun Amri Annisa Aprilya Putri Annisa Rahmat Ari Aditia Sukma Sukma Arisman Adnan Ariya Eka Alel Arosyidin Arosyidin Aulia Permatasari Aulia Permatasari Bahruddin Bahruddin Benny Ahmadi Bima Wandika Putra Charismayani Charismayani Damayanti, Elok Debora Tambunan Deden Saprudin Deni Astika Deni Noviana Derry Hanriansyah Pratama Deska Deska Dewi Indah Pratiwi Dhamala Shobita Chandra Dhanang Hayuningwang Dion Julio Iskandar Dovy Reyandi Drastinawati Drastinawati Drastinawati Drastinawati Dwi Yerlis Rahmi Edy Saputra Ervina Ervina Esty Octiana Sari Esty Octiana Sari Fachry Abda El Rahman Fadhil Mubarak Fajril ' Akbar Fajril Akbar Feblil Huda Ferdy Ashari Syawal Fernando Susilo Gading Bagus Mahardika Gede Indra Ludy Wirata Heni ' Ismawati Heni Ismawati Heni Sugesti Herry Novriansyah Idral Amri Ika Karina Ilham Habib Indah Fitriani Indra Purnama Indra Yasri Ines Indriyani Irdoni HS Irdoni Irdoni Iwantono Iwan Barnawi Jabosar Ronggur Hamonangan Panjaitan Jenial S Julharmito Julharmito Komalasari Komalasari Lia Yuningsih Lilis Suriani Luci Octaria M Satria Haruda Marlinda MAYANG SARI Mayangsari Mayangsari Melda Helena S Miftah Anugrah Mochamad Reizal Ath Thariq Muchlis Ade Putra Muh Irwan Muhamamad Rizky Zuriadi Muhammad Hamdani Muhammad Reski Muhammad Syafiq Izzuddin Mustika Canra Mutamima, Anisa Nisa Mulya Nissa Aqhilla Novika Sri Wardani Nuraina Siregar Nurfajriani Nurfajriani Nurfatihayati Nursyaniati Nursyaniati Nurul Afifah Ongky Alexander Ongky Alexander Padil Padil Panca Setia Utama Pancasila Putri Peter Peter Prihartini Widiyanti Putri Arini Putri Rahmadani Rahimah Rahimah Rahmad Rasyidin Rani Handayani Rathesa Najela Rawdatul Fadila Ridho Wijaya Riki Rahmadhan Rio Andika Ririn Puji Hastuti Rozanna Sri Irianty Rusydy Rusydy ' Septiana Veronika S Silvia Reni Renti Silvia Reni Yenti Silvia Reni Yenti Silvia Reni Yenti Silvia Reni Yenty Siska Priscillia Aledya Siti Chotijah Sri Murda Niati Sri Murda Niati Subkhan Maulana Suhendri Sukoco Sukoco Sukoco Sukoco Sunarno Sunarno Sunarno Sunarno Syarifuddin Oko Syelvia Renni Yenti Thomson Simanjuntak Toni Ardi Ulfah Naida Marbun Wan Elsa Novtari Adiani Wasty Rusjaya Wilda Zakiah Wiriyan Jordy Wisrayetti Wisrayetti Wisrayetti Wisrayetti Wisrayetti Wisrayetti Wyda N Saragi Yelmida Azis Yelmida Aziz Yesi Afriani Yogi Yolanda Yunus Olivia Novanto Zakwan Zuchra Helwani Zultiniar Zultiniar Zultiniar Zultiniar Zultiniar Zultiniar