| Email : roto05@ugm.ac.id. |
| Education Background : |
| Doctor, Ph.D, Chemistry, The University Of New Brunswick, Canada, 2005. Master, M.Eng, Analytical Chemistry, Keio University, Japan, 1998. Undergraduate, Drs, Kimia, Universitas Gadjah Mada, 1992. |
| Research Interest : |
| Food Analysis, Nanomaterial, Chemosensor, Layered Materials. Aktif meneliti tentang pengembangan material nano dan material berlapis untuk aplikasi pengembangan sensor cemaran lingkungan. |
| Research Cluster/Group : |
| Lingkungan, Material |
| List of Publications : |
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(1) Nubatonis, Y. K.; Roto, R.; Siswanta, D.; Keikimanova, M.; Hosseini-Bandegharaei, A. Smartphone Colorimetry for Rapid Environmental Monitoring: Detecting Ni2+ Using EDTA and Mercapto Succinic Acid Functionalized Silver Nanoparticles. J. Mol. Liq. 2025, 426. https://doi.org/10.1016/j.molliq.2025.127351. (2) Budiarta, J.; Sari, D.; Betriani, R.; Yuliatun, L.; Kunarti, E.; Roto, R. Green Synthesis of Persimmon Tannin Modified With CoFe2O4@SiO2 Nanoparticles for Au(III) Ions Adsorbent: Synthesis Optimization and Characterization. Appl. Organomet. Chem. 2025, 39 (4). https://doi.org/10.1002/aoc.70118. (3) Kurniasih, M.; Aprilita, N. H.; Roto, R.; Mudasir, M. Modification of Coal Fly Ash for High Capacity Adsorption of Methylene Blue. Case Stud. Chem. Environ. Eng. 2025, 11. https://doi.org/10.1016/j.cscee.2025.101101. (4) Othman Kombo, K.; Nur Hidayat, S.; Puspita, M.; Kusumaatmaja, A.; Roto, R.; Nirwati, H.; Susilowati, R.; Lutfia Haksari, E.; Wibowo, T.; Wandita, S.; Julia, M.; Triyana, K. A Machine Learning-Based Electronic Nose for Detecting Neonatal Sepsis: Analysis of Volatile Organic Compound Biomarkers in Fecal Samples. Clin. Chim. Acta 2025, 565. https://doi.org/10.1016/j.cca.2024.119974. (5) Katriani, L.; Aflaha, R.; Maharani, C. N.; Naafi’ah Salsabila, F.; As’ari, A. H.; Rianjanu, A.; Nurwantoro, P.; Roto, R.; Triyana, K. Quartz Crystal Microbalance Coated with a Polyvinylpyrrolidone Microfiber Active Layer as a High-Performance Acetic Acid Gas Sensor. Langmuir 2025, 41 (7), 4632–4640. https://doi.org/10.1021/acs.langmuir.4c04474. (6) Aflaha, R.; Maharani, C. N.; Prabowo, Y. D.; Roto, R.; Gupta, R.; Wasisto, H. S.; Rianjanu, A.; Putri, W. B. K.; Triyana, K. Environmentally Friendly Waterproof and Breathable Nanofiber Membranes with Ultra-Low Pressure Drop and High Performance. Colloids Surfaces A Physicochem. Eng. Asp. 2025, 711. https://doi.org/10.1016/j.colsurfa.2025.136319. (7) Rifqi Tamara, M.; Lelono, D.; Roto, R.; Suryo Wasisto, H.; Triyana, K. Highly Stable Potentiometric Umami Taste Sensor Using PEDOT: SDS-Based All-Solid-State Electrode Modified With Lipid/Polymeric Membrane. IEEE Sens. J. 2025, 25 (1), 175–183. https://doi.org/10.1109/JSEN.2024.3496916. (8) Aflaha, R.; Dzaki, M. R.; Katriani, L.; As’ari, A. H.; Maharani, C. N.; Kuncaka, A.; Natsir, T. A.; Rianjanu, A.; Gupta, R.; Triyana, K.; Roto, R. A Polyaniline-Enhanced Quartz Crystal Microbalance Sensor for Room-Temperature Camphor Detection. Anal. Methods 2024, 17 (4), 724–734. https://doi.org/10.1039/d4ay01859a. (9) Alharissa, E. Z.; Efhiliana, Y.; Roto, R.; Mudasir, M.; Wahyuni, E. T. Efficient Removal of Cr(VI) Contaminant Using Recoverable Silica from Volcanic Ash as Natural Adsorbent: Synthesis and Activity in the Mechanism and Kinetic Adsorption. Heliyon 2024, 10 (2). https://doi.org/10.1016/j.heliyon.2023.e23273. (10) Destiarti, L.; Riyanto, R.; Roto, R.; Mudasir, M. Facile Synthesis of Reduced Graphene Oxide Using Caesalpinia Sappan L. Extract as Green Reducing Agent. Next Mater. 2024, 2. https://doi.org/10.1016/j.nxmate.2024.100134. (11) Fatimah, S. D.; Kuncaka, A.; Roto, R. Characterization of Synthetic Humin from Solid Hydrolysate and Biochar from Hydrothermal Carbonization Products of Chicken Feather Waste. Indones. J. Chem. 2024, 24 (1), 1–12. https://doi.org/10.22146/ijc.78688. (12) Budiarta, J.; Sari, D. I. L.; Betriani, R.; Kunarti, E. S.; Roto, R. A Novel Bio-Adsorbent of CoFe2O4@SiO2 Core-Shell Nanoparticles Modified with Persimmon Tannin for Simultaneous Au(III) Ions Adsorption and Reduction. Mater. Chem. Phys. 2024, 320. https://doi.org/10.1016/j.matchemphys.2024.129419. (13) Effendhy, N. D.; Roto, R.; Siswanta, D. Advancing Fluoride (F–) Detection: Exploring the Potential of Digital Color Analysis with a Novel Thiourea Receptor. Microchem. J. 2024, 197. https://doi.org/10.1016/j.microc.2023.109819. (14) Destiarti, L.; Huda, B. N.; Riyanto, R.; Roto, R.; Mudasir, M. Challenges of Using Natural Extracts as Green Reducing Agents in the Synthesis of RGO: A Brief Review. Results Chem. 2024, 7. https://doi.org/10.1016/j.rechem.2023.101270. (15) Aryani, T.; Roto, R.; Mudasir, M. PbO2/RGO Electrode as a Superior and Efficient Anode in Electrocatalytic Degradation of Safranine-O. Bull. Chem. React. Eng. Catal. 2024, 19 (3), 480–499. https://doi.org/10.9767/bcrec.20196. (16) Aflaha, R.; Putri, L. A.; Maharani, C. N.; Rianjanu, A.; Roto, R.; Wasisto, H. S.; Triyana, K. Tuning a Superhydrophobic Surface on an Electrospun Polyacrylonitrile Nanofiber Membrane by Polysulfone Blending. ACS Omega 2024, 9 (27), 29840–29847. https://doi.org/10.1021/acsomega.4c03554. (17) Prasetyowati, R.; Aflaha, R.; Khoirudin, H.; Tamara, M. R.; Roto, R.; Nurwantoro, P.; Triyana, K. A Study on Sensitivity, Reproducibility, and Stability of Sourness and Saltiness Taste Sensors Using a Mixture of Lipid Membranes. Biosens. Bioelectron. X 2024, 18. https://doi.org/10.1016/j.biosx.2024.100459. (18) Katriani, L.; Aflaha, R.; As’ari, A. H.; Nurwantoro, P.; Roto, R.; Triyana, K. Nanofiber-Coated Quartz Crystal Microbalance with Chitosan Overlay for Highly Sensitive Room Temperature Ammonia Gas Sensor. Microchem. J. 2024, 206. https://doi.org/10.1016/j.microc.2024.111532. (19) Tamara, M. R.; Lelono, D.; Roto, R.; Triyana, K. Enhancing the Stability of All-Solid-State Astringent Taste Sensor through Annealed Solid Contact and Slow-Drying Lipid/Polymeric Membrane. Instrum. Sci. Technol. 2024, 52 (6), 731–746. https://doi.org/10.1080/10739149.2024.2328271. (20) Kombo, K. O.; Ihsan, N.; Syahputra, T. S.; Hidayat, S. N.; Puspita, M.; Roto, R.; Triyana, K. Enhancing Classification Rate of Electronic Nose System and Piecewise Feature Extraction Method to Classify Black Tea with Superior Quality. Sci. African 2024, 24. https://doi.org/10.1016/j.sciaf.2024.e02153. (21) Aflaha, R.; Maharani, C. N.; Putri, L. A.; Prabowo, Y. D.; Rahman, I.; Taher, T.; Rianjanu, A.; Roto, R.; Wasisto, H. S.; Triyana, K. A Superhydrophobic and Heat-Resistant PAN/PSU/PTFE Composite Nanofiber Membrane for High-Efficiency PM1.0 and PM2.5 Filtration. Mater. Adv. 2024, 5 (24), 9731–9743. https://doi.org/10.1039/d4ma00841c. (22) Destiarti, L.; Riyanto, R.; Roto, R.; Mudasir, M. Electrolyte Effect in Electrochemical Exfoliation of Graphite. Mater. Chem. Phys. 2023, 302. https://doi.org/10.1016/j.matchemphys.2023.127713. (23) Mudasir, M.; Roto, R.; Kuboki, Y.; Begum, P. Coal Fly/Bottom Ash, Hydroxylapatite, and Hydrotalcite. In Handbook of Environmental Chemistry; Springer Science and Business Media Deutschland GmbH: Faculty of Science, University of Gadjah Mada, Yogyakarta, Indonesia, 2023; Vol. 115, pp 461–505. https://doi.org/10.1007/698_2022_844. (24) Nikmah, N.; Roto, R.; Mudasir, M. Isotherm and Kinetic Adsorption of Malachite Green Using Low-Cost Adsorbent of Coal Fly Ash. In Key Engineering Materials; Trans Tech Publications Ltd: Department of Chemistry, Faculty of Mathematics and Natural Sciences, Gadjah Mada University, Sekip Utara P.O. Box Bls. 21, Yogyakarta, 55281, Indonesia, 2023; Vol. 949, pp 163–173. https://doi.org/10.4028/p-08Iw7P. (25) Sofa, S. A.; Roto, R.; Aflaha, R.; Natsir, T. A.; Humairah, N. A.; Kusumaatmaja, A.; Triyana, K.; Gupta, R. Formaldehyde Gas Sensors Based on a Quartz Crystal Microbalance Modified with Aniline-Doped Polyvinyl Acetate Nanofibers. Analyst 2023, 149 (4), 1262–1270. https://doi.org/10.1039/d3an01856c. (26) Aflaha, R.; Sari, N. L. I.; Katriani, L.; As’ari, A. H.; Kusumaatmaja, A.; Rianjanu, A.; Roto, R.; Wasisto, H. S.; Triyana, K. Maltodextrin-Overlaid Polyvinyl Acetate Nanofibers for Highly Sensitive and Selective Room-Temperature Ammonia Sensors. Microchem. J. 2023, 193. https://doi.org/10.1016/j.microc.2023.109237. (27) Aflaha, R.; Katriani, L.; As’ari, A. H.; Sari, N. L. I.; Kusumaatmaja, A.; Rianjanu, A.; Roto, R.; Triyana, K. Enhanced Trimethylamine Gas Sensor Sensitivity Based on Quartz Crystal Microbalance Using Nanofibers Overlaid with Maltodextrin. MRS Commun. 2023, 13 (4), 664–672. https://doi.org/10.1557/s43579-023-00409-3. (28) Humairah, N. A.; Nurijal, I.; Ainus Sofa, S.; Chaerunnisa, A.; Roto, R.; Kusumaatmaja, A.; Hadi Sujiono, E.; Triyana, K. Molecularly Imprinted Polyvinyl Acetate Doped with Boric Acid for Sensitivity and Selectivity of Ammonia Sensing by QCM. Biosens. Bioelectron. X 2023, 13. https://doi.org/10.1016/j.biosx.2023.100320. (29) Aflaha, R.; Afiyanti, H.; Azizah, Z. N.; Khoirudin, H.; Rianjanu, A.; Kusumaatmaja, A.; Roto, R.; Triyana, K. Improving Ammonia Sensing Performance of Quartz Crystal Microbalance (QCM) Coated with Nanofibers and Polyaniline (PANi) Overlay. Biosens. Bioelectron. X 2023, 13. https://doi.org/10.1016/j.biosx.2022.100300. (30) Putri, L. A.; Rahman, I.; Puspita, M.; Hidayat, S. N.; Dharmawan, A. B.; Rianjanu, A.; Wibirama, S.; Roto, R.; Triyana, K.; Wasisto, H. S. Rapid Analysis of Meat Floss Origin Using a Supervised Machine Learning-Based Electronic Nose towards Food Authentication. npj Sci. Food 2023, 7 (1). https://doi.org/10.1038/s41538-023-00205-2. (31) Tamara, M. R.; Lelono, D.; Roto, R.; Triyana, K. All-Solid-State Astringent Taste Sensor Using Polypyrrole-Carbon Black Composite as Ion-Electron Transducer. Sensors Actuators A Phys. 2023, 351. https://doi.org/10.1016/j.sna.2023.114170. (32) Tamara, M. R.; Hafifah, C. N.; Julian, T.; Lelono, D.; Roto, R.; Triyana, K. Development of Potentiometric Electronic Tongue to Identify Adulteration of Olive Pomace Oil in Extra Virgin Olive Oil. In AIP Conference Proceedings; S.D., A., L., Y., null, M., A.P., P., E.E., Y., Eds.; American Institute of Physics Inc.: Physics Department, Universitas Gadjah Mada, Sekip Utara BLS 21, Yogyakarta, Indonesia, 2023; Vol. 2858. https://doi.org/10.1063/5.0167162. (33) Janah, I. M.; Roto, R.; Konishi, K.; Siswanta, D. EDTA-Capped Silver Nanoparticles as a Probe for Highly Sensitive and Selective Colorimetric Sensing of Creatinine and Optimization Using Response Surface Methodology-Box Behnken Design. Talanta Open 2022, 6. https://doi.org/10.1016/j.talo.2022.100170. (34) Mauludi, K.; Nuryono, N.; Roto, R.; Mardjan, M. I. D.; Kunarti, E. S. EFFECT OF GOLD MODIFICATION ON THE PROPERTIES AND PHOTOACTIVITY OF Fe3O4/SiO2/TiO2 IN THE DEGRADATION OF NITROBENZENE. Rasayan J. Chem. 2022, 15 (2), 1225–1233. https://doi.org/10.31788/RJC.2022.1526887. (35) Janah, I. M.; Roto, R.; Siswanta, D. Effect of Ascorbic Acid Concentration on the Stability of Tartrate-Capped Silver Nanoparticles. Indones. J. Chem. 2022, 22 (3), 857–866. https://doi.org/10.22146/ijc.73196. (36) Thohir, M. B.; Roto, R.; Suherman, S. A Sol-Gel Membrane Utilized Cellulose Paper Doped with α-Furil Dioxime for Colorimetric Determination of Nickel. Bull. Environ. Contam. Toxicol. 2022, 109 (6), 1183–1189. https://doi.org/10.1007/s00128-022-03622-3. (37) Murniasih, S.; Santosa, S. J.; Roto, R. Identification of Toxic Heavy Metals and Trace Elements in Pesticides Used by Shallots (Allium Cepa Var. Aggregatum) Farmers in Brebes District, Indonesia. In Key Engineering Materials; Trans Tech Publications Ltd: Departement of Chemistry-Faculty of Mathematics and Natural Sciences, Gadjah Mada University, Indonesia, 2022; Vol. 927, pp 41–49. https://doi.org/10.4028/p-ef3md9. (38) Murniasih, S.; Santosa, S. J.; Roto, R. Assessment of Multi-Nutrients and Heavy Metals in Inorganic Fertilizers Widely Used by Indonesian Farmers Using NAA. Indones. J. Chem. 2022, 22 (3), 666–682. https://doi.org/10.22146/ijc.69908. 2021 Reaction Times among Batik Workers: The Influence of Gender and Occupational Lead ExposureD Agustiningsih, M Sofyana, S Budiharjo, SA Febriana, H Nurokhmanti, …International Journal of Environmental Research and Public Health 18 (23), 12605 2021 Remazol Black Decontamination Study Using a Novel One-Pot Synthesized S and Co Co-Doped TiO2 PhotocatalystR Dwiyanna, R Roto, ET Wahyuni Photochem 1 (3), 488-504 2021 Enhanced photocatalytic degradation of Remazol Black under visible light illumination through S doped TiO2 (S-TiO2) nanoparticles: operational factors and kinetic studyR Dwiyanna, R Roto, KP Suwondo, ET Wahyuni GLOBAL NEST JOURNAL 23 (2), 323-332 2021 Initiating” Healthy Batik Village”/“Desa Batik Sehat” to Empower Batik Workers Through Collaborative Health, Environmental and Social InterventionsSA Febriana, K Oginawati, I Tanziha, R Roto, FD Sarian, CRS Prakoeswa, … 2021 A simple analyte volatilization in polytetrafluoroethylene (PTFE) vessel for spectrophotometric determination of boronREY Adu, R Roto, A Kuncaka Jurnal Akademika Kimia 10 (2), 98-104 2021 Symposium of Materials Science and Chemistry IIIA Kusumaatmaja, TD Wahyuningsih, M Khairuddean, I Kartini, R Roto, … Trans Tech Publications Ltd 2021 Spectrophotometric determination of boron in food products by ester borate distillation into curcuminREY Adu, R Roto, A Kuncaka Journal of Chemistry 15 (1), 67-73 2021 Very Stable EDTA-Stabilized Colloidal Silver Nanoparticles: The Role of Synthesis ParametersIM Janah, R Roto, D Siswanta Journal of Photopolymer Science and Technology 34 (6), 587-595 2021 Effective Photocatalytic Degradation of Nitrobenzene by Magnetite Modified Titania CompositeES Kunarti, R Roto, S Sutarno, IS Budi, M Mardiansyah Asian Journal of Chemistry, 1319-1324 2021 Remazol Black Decontamination Study Using a Novel One-Pot Synthesized S and Co Co-Doped TiO2 Photocatalyst. Photochem 2021, 1, 488–504R Dwiyanna, R Roto, ET Wahyuni Visible Light Active Photocatalysts for Environmental Remediation and … 2021 Hydroxyl Functionalized Graphene As a Superior Anode Material for Electrochemical Oxidation of Methylene BlueY Yusbarina, R Roto, K Triyana Rasayan Journal of Chemistry 14 (2), 1140-1147 2021 Stainless Steel/Hydroxyl Functionalized Graphene Electrode for Electrochemical Oxidation of Methyl OrangeY Yusbarina, R Roto, K Triyana Key Engineering Materials 884, 32-38 2021 SOLID-PHASE EXTRACTION OF AMOXICILLIN IN AQUEOUS SYSTEM BY USING Mg-Al-OXALATE LDH AS A STATIONARY PHASEDW Dwiasi, M Mudasir, R Roto Rasayan Journal of Chemistry 13 (4), 2523 2020 Green synthesis of silver nanoparticles using Kirinyuh (Chromolaena Odorata) leaf extract and their antibacterial activity against Vibrio sp.E Yanuar, W Sarwana, K Umam, I Huda, D Wijaya, R Roto, M Mudasir AIP Conference Proceedings 2243 (1), 020031 2020 Quartz crystal microbalances functionalized with citric acid-doped polyvinyl acetate nanofibers for ammonia sensingR Roto, A Rianjanu, A Rahmawati, IA Fatyadi, N Yulianto, N Majid, … ACS Applied Nano Materials 3 (6), 5687-5697 2020 Symposium of Materials Science and Chemistry IITD Wahyuningsih, R Roto, R Adnan, L Commeiras, K Triyana, I Kartini, … Trans Tech Publications Ltd 2020 Enhanced sensitivity and selectivity of ammonia sensing by QCM modified with boric acid-doped PVAc nanofiberR Roto, A Rianjanu, IA Fatyadi, A Kusumaatmaja, K Triyana Sensors and Actuators A: Physical 304, 111902 2020 Photocatalytic Reduction of AuCl4-by Fe3O4/SiO2/TiO2 NanoparticlesES Kunarti, R Roto, N Nuryono, SJ Santosa, ML Fajri 2020 RELEASE OF α-TOCOPHEROL FROM CHITOSAN/PECTIN POLYELECTROLYTE COMPLEX FILM INTO FATTY FOOD SIMULANT FOR THE DESIGN OF ANTIOXIDANT ACTIVE FOOD PACKAGEAR Hapsari, R Roto, D Siswanta Jurnal Teknologi 82 (2) 2020 Molecular imprinting polymer-based QCM sensor for detection of α-pineneNA Humairah, F Fadlunisa, KA Histhiningtyas, IA Fatyadi, R Roto, … Key Engineering Materials 840, 418-423 2020 Preparation of Fe3O4@ SiO2 nanoparticles for adsorption of waste containing Cu2+ ionsRA Irfai, R Roto, NH Aplrilita Key Engineering Materials 840, 43-47 2020 Effect of Stabilizing Agent of Sodium Citrate and Polyethylene Glycol on Structure of Fe3O4 NanoparticlesR Roto, A Izza, ES Kunarti, S Suherman Key Engineering Materials 840, 466-471 2020 Electrospun polyvinyl acetate nanofiber modified quartz crystal microbalance for detection of primary alcohol vaporA Rianjanu, K Triyana, DB Nugroho, A Kusumaatmaja, R Roto Sensors and Actuators A: Physical 301, 111742 2020 Quartz crystal microbalance-coated cellulose acetate nanofibers overlaid with chitosan for detection of acetic anhydride vaporDB Nugroho, A Rianjanu, K Triyana, A Kusumaatmaja, R Roto Results in Physics 15, 102680 2019 Ion Exchange of Benzoate in Ni-Al-Benzoate Layered Double Hydroxide by AmoxicillinDW Dwiasi, M Mudasir, R Roto Open Chemistry 17 (1), 1043-1049 2019 A highly sensitive safrole sensor based on polyvinyl acetate (PVAc) nanofiber-coated QCMK Triyana, A Rianjanu, DB Nugroho, AH As’ari, A Kusumaatmaja, R Roto, … Scientific Reports 9 (1), 1-12 2019 Karakteristik limbah dan dampak kesehatan bagi pembatik Lendah, Kulon ProgoSA Febriani, IBGSP Pidada, H Widagdo, M Suciningtyas, Y Nurhantari, … Journal of Community Empowerment for Health 2019 A study of quartz crystal microbalance modified with polyvinyl acetate nanofiber to differentiate short-chain alcohol isomersA Rianjanu, DB Nugroho, A Kusumaatmaja, R Roto, K Triyana Sensing and Bio-Sensing Research 25, 100294 2019 Preparation of TiO2/AgNPs by photodeposition method using Ag (I) present in radiophotography wastewater and their antibacterial activity in visible light illuminationET Wahyuni, R Roto, D Novarita, KP Suwondo, B Kuswandi Journal of Environmental Chemical Engineering 7 (4), 103178 2019 Quartz crystal microbalance coated with PEDOT–PSS/PVA nanofiber for a high-performance humidity sensorT Julian, A Rianjanu, SN Hidayat, A Kusumaatmaja, R Roto, K Triyana Journal of Sensors and Sensor Systems 8 (2), 243-250 2019 Colorimetric Sensing of Pb2+ Ion by Using Ag Nanoparticles in the Presence of DithizoneR Roto, B Mellisani, A Kuncaka, M Mudasir, A Suratman Chemosensors 7 (3), 28 2019 Polyvinyl acetate film-based quartz crystal microbalance for the detection of benzene, toluene, and xylene vapors in airA Rianjanu, SA Hasanah, DB Nugroho, A Kusumaatmaja, R Roto, … Chemosensors 7 (2), 20 2019 Symposium of Materials Science and ChemistryR Roto, I Kartini, J Motuzas, K Triyana, D Siswanta, TD Wahyuningsih, … Trans Tech Publications Ltd 2019 An enhanced safrole sensing performance of a polyacrylonitrile nanofiber-based-QCM sensor by overlaying with chitosanA RIANJANU, K TRIYANA, N NURBAITI, SA HASANAH, … Sains Malaysiana 48 (9), 2041-2049 2019 Preparation of Char-Fe 3 O 4 Composites from Polyvinyl Chloride with Hydrothermal and Hydrothermal-Pyrolysis Carbonization Methods as Co (II) AdsorbentsM Muslem, A Kuncaka, TN Himah, R Roto Indonesian Journal of Chemistry 19 (4), 835-840 2019 Polyethyleneimine-Modified Quartz Crystal Microbalance and its Characteristics for Detecting Acetic AcidD Purwati, T Julian, S Nur Hidayat, A Rianjanu, A Kusumaatmaja, … Materials Science Forum 948, 294-299 2019 Microstructures and Functional Group Properties of Nano-Sized Chitosan Prepared by Ball MillingK Sari, E Suharyadi, R Roto, K Abraha Materials Science Forum 948, 192-197 2019 Polyacrylamide coated on quartz crystal microbalance electrodes for highly sensitive sensor of acetic acidA Rizani, SS Winingsih, A Rianjanu, T Julian, S Nur Hidayat, … Materials Science Forum 948, 254-259 2019 Antibacterial Activity of TiO2-Ag-Nanoparticle under Visible LightET Wahyuni, R Roto, M Prameswari Materials Science Forum 948, 33-42 2019 Surface modification of Fe3O4 as magnetic adsorbents for recovery of precious metalsR Roto Advanced surface engineering research, 128-139 2018 Chitosan-based quartz crystal microbalance for alcohol sensingK Triyana, A Sembiring, A Rianjanu, SN Hidayat, R Riowirawan, T Julian, … Electronics 7 (9), 181 2018 Modified silica adsorbent from volcanic ash for Cr (VI) anionic removalET Wahyuni, R Roto, FA Nissa, M Mudasir, NH Aprilita Indonesian Journal of Chemistry 18 (3), 428-433 2018 Validation of Analytical Method Determination of Sodium Dodecyl Benzene Sulfonate (DBS) in Catfish (Clarias batrachus L.) by Spectrophotometric Using Methylene BlueCDQM Bulin, A Suratman, R Roto Journal of Applied Chemical Sciences 5 (1), 409-413 2018 Polyacrylonitrile nanofiber-based quartz crystal microbalance for sensitive detection of safroleA Rianjanu, R Roto, T Julian, SN Hidayat, A Kusumaatmaja, EA Suyono, … Sensors 18 (4), 1150 2018 Silver nanoparticle incorporated titanium oxide for bacterial inactivation and dye degradationET Wahyuni, R Roto Titanium Dioxide-Material for a Sustainable Environment. InTech, 331-348 2018 Saccharin Extraction and Analysis of Drug and Food Samples by Derivative Ultraviolet (UV) SpectrophotometrySR Hermanto, R Roto, A Kuncaka Eksakta 18 (2), 85-96 2018 Oriental Journal of Physical SciencesIMN MILLA, M SYAHRI, ET WAHYUNI, R ROTO, DWI SISWANTA 2018 Effect of Reducing Agents on Physical and Chemical Properties of Silver NanoparticlesR Roto, HP Rasydta, A Suratman, NH Aprilita Indonesian Journal of Chemistry 18 (4), 614-620 2018 Investigation on the Effect of Addition of Fe 3+ Ion into the Colloidal AgNPs in PVA Solution and Understanding Its Reaction MechanismR Roto, M Marcelina, NH Aprilita, M Mudasir, TA Natsir, B Mellisani Indonesian Journal of Chemistry 17 (3), 439-445 2017 ANALITICAL METHOD VALIDATION OF ANIONIC SURFACTANT SODIUM DODECYL BENZENE SULFONATE (SDBS) IN CATFISH BY UV-VIS SPECTROPHOTOMETRY USING ACRIDINE ORANGEMC Ratri, A Suratman, R Roto ALCHEMY Jurnal Penelitian Kimia 13 (2), 145-165 2017 Core-Shell Nanoparticles as Catalyst for Ag (I) IonsE KUNARTI, R ROTO, AR PRADIPTA, IISS BUDI ORIENTAL JOURNAL OF CHEMISTRY 2017 Physico-Chemical Properties of LiM0. 10Mn1. 90O4 (M: Co, Ni, Cr) for Potential Cathode MaterialsD PURWANINGSIH, R ROTO, H SUTRISNO, A PURWANTO Asian Journal of Chemistry 29 (7), 1466-1470 2017 Comparison of NAA XRF and ICP-OES Methods on Analysis of Heavy Metals in Coals and Combustion ResiduesA Taftazani, R Roto, NR Ananda, S Murniasih Indonesian Journal of Chemistry 17 (2), 228-237 2017 The roles of hydrazine and ethylenediamine in wet synthesis of Cu nanowireH Harsojo, LA Puspita, D Mardiansyah, R Roto, K Triyana Indonesian Journal of Chemistry 17 (1), 43-48 2017 PAN-Immobilized PVC-NPOE Membrane for Environmentally Friendly Sensing of Cd (II) IonsM Moersilah, D Siswanta, R Roto, M Mudasir Indonesian Journal of Chemistry 17 (1), 1-6 2017 Structural characterization of LiCrxMn2−xO4 via a simple reflux techniqueD Purwaningsih, R Roto, H Sutrisno, A Purwanto AIP Conference Proceedings 1823 (1), 020100 2017 Symposium on Nanosciences and ChemistryI Kartini, K Triyana, D Siswanta, R Roto Symposium on Nanosciences and Chemistry, 1-218 2017 Optical chemical sensor of Cd (II) in water based on 1-(2-pyridylazo)-2-naphtol immobilized on poly (methyl methacrylate) and 2-nitrophenyl octyl ether matrix.D Siswanta, R Roto, M Mudasir Malaysian Journal of Analytical Sciences 21 (4), 784-792 2017 Fe3O4/SiO2/TiO2 core-shell nanoparticles as catalyst for photoreduction of Ag (I) IonsES Kunarti, R Roto, AR Pradipta, IS Budi Oriental Journal of Chemistry 33 (4), 1933 2017 TiO2/Ag-nanoparticle as a Photocatalyst for Dyes DegradationET Wahyuni, R Roto, M PrameSwari CEST 2017 Conversion of Green House CO2 Gas into Useful Hydrocarbon Gasses by Photoreduction Method over TiO2/SiO2 from Volcanic AshET Wahyuni, R Roto, IP Iqbah Materials Science Forum 901, 154-159 2017 Pengaruh Penambahan Urea Terhadap Peningkatan Pencemaran Nitrit Dan Nitrat Dalam Tanah (Influence of Addition of Urea to Increased Pollution of Nitrite and Nitrate in the Soil)A Mawaddah, R Roto, A Suratman Jurnal Manusia dan Lingkungan 23 (3), 360-364 2016 STUDI EFEK MEMORI HIDROKSIDA GANDA TERLAPIS Zn-Al-NO3T Ernawati, R Roto Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi 2 (2), 36-41 2016 Magnetic adsorbent of Fe3O4@ SiO2 core-shell nanoparticles modified with thiol group for chloroauric ion adsorptionR Roto, Y Yusran, A Kuncaka Applied Surface Science 377, 30-36 2016 Board Committee: Proceedings of the International Conference on Science and Technology (ICST 2015)TR Nuringtyas, R Roto, A Widyaparaga, M Mahardika, A Kusumaadmaja, … AIP Conference Proceedings 1755 (1), 010002 2016 Preface: Proceedings of the International Conference on Science and Technology (ICST 2015)TR Nuringtyas, R Roto, A Widyaparaga, M Mahardika, A Kusumaadmaja, … AIP Conference Proceedings 1755 (1), 010001 2016 Monitoring Kadar Nitrit Dan Nitrat Pada Air Sumur Di Daerah Catur Tunggal Yogyakarta Dengan Metode Spektrofotometri Uv-vis (Monitoring of Nitrite and Nitrate Content in Ground …S Setiowati, R Roto, ET Wahyuni Jurnal Manusia dan Lingkungan 23 (2), 143-148 2016 Study of Glucose Adsorption on Synthetic Humin.A Wahyuningtyas, R Roto, A Kuncaka Asian Journal of Chemistry 28 (5) 2016 Pengembangan Metode Analisis Kreatinin Secara Spektrofotometri Dengan Menggunakan Spektrofotometer UV-VisibleTA Natsir, D Siswanta, R Roto BIMIPA 24 (1), 12-19 2016 Analisis Natrium Dodesilbenzena Sulfonat dalam Ikan Lele secara Maserasi dan Spektrofotometri UV-Vis menggunakan Metilen BiruK Muzakar, A Suratman, R Roto Indonesian Journal of Pure and Applied Chemistry 3 (3), 10-16 2016 Photodegradation of detergent anionic surfactant in wastewater using UV/TiO2/H2O2 and UV/Fe2+/H2O2 processesET Wahyuni, R Roto, M Sabrina, V Anggraini, NF Leswana, AC Vionita American journal of applied chemistry 4 (5), 174-180 2016 Synthesis of LiNixMn2-xO4 by low-temperature solid-state reaction and its microstructureD Purwaningsih, R Roto, H Sutrisno IOP Conference Series: Materials Science and Engineering 107 (1), 012033 2016 In vitro hemocompatibility of PVA-alginate ester as a candidate for hemodialysis membraneC Amri, M Mudasir, D Siswanta, R Roto International journal of biological macromolecules 82, 48-53 2016 ANALISIS DAN PENGUKURAN PARAMETER REAKTOR KARTINI UNTUK PENERAPAN METODE K0-NAAS Murniasih, R Roto, A Taftazani, S Sutisna Jurnal Teknologi Reaktor Nuklir Tri Dasa Mega 16 (2), 100-108 2015 Pengaruh Rasio Molar Zn/Al Terhadap Sifat Pertukaran Anion [Fe (CN) 6] 4–Pada Hidrotalsit Zn-Al-NO3 dan Zn-Al-ClNI Retnaningsih, R Roto, N Hidayat Berkala Ilmiah MIPA 23 (3), 243369 2015 Effects of Li/Mn mole ratio on the synthesis of Li1 by low temperature solid-state reaction for cathode materialsD Purwaningsih, R Roto, N Muhammad, H Sutrisno ProScience 2015 Influences of Metals and Acids on the Photo Reduction of CO2 under Catalysis of TiO2ET Wahyuni, R Kusumaningrum, W ode Mulyana, R Roto J. Chem 9, 517-523 2015 Synthesis of LiCoxMn2-xO4 by Low Temperature Solid-State Reaction for Cathode MaterialD Purwaningsih, R Roto, H Sutrisno Advanced Materials Research 1123, 100-103 2015 Hydrotalsit Zn-al-edta Sebagai Adsorben Untuk Polutan Ion Pb (ii) Di Lingkungan Zn-al-edta Hydrotalcite as Adsorbent for Pb (ii) Ion Pollutant in the EnvironmentR Roto, DR Indah, A Kuncaka Jurnal Manusia dan Lingkungan 22 (2), 226-232 2015 Characterization of Butanediol-Alginate Ester as Candidate of Hemodialysis MembraneA Choirul Indones. J. Chem. 15 (2), 146-154 2015 Preparation of LiMn2O4 microstructure by low temperature solid-state reaction for cathode materialD Purwaningsih, R Roto, H Sutrisno Advanced Materials Research 1101, 134-137 2015 Liquid-Liquid Equilibrium for Binary Mixtures of α-Pinene+ Water and α-Terpineol+ WaterH Utami, S Sutijan, R Roto, WB Sediawan 2013 Liquid-Liquid Equilibrium for System Composed of α-Pinene, α-Terpineol and WaterH Utami, S Sutijan, R Roto, WB Sediawan International Journal of Chemical Engineering and Applications 4 (1), 21-25 2013 Sintesis α-Terpineol dari Terpentin dengan Katalisator Asam Khloro Asetat Secara BatchH Utami, S Sutijan, R Roto, WB Sediawan Jurnal Ilmiah Sains dan Teknologi 11 (1), 27-31 2 2012 Kinetics Modeling of Hydration α-Pinene to α-Terpineol Using Solid CatalystH Utami, S Sutijan, R Roto, WB Sediawan 2011 Heterogeneous kinetics of hydration of α-pinene for α-terpineol production: non-ideal approachH Utami, A Budiman, S Sutijan, R Roto, WB Sediawan 2011 Studi Kinetika Reaksi Heterogen α-pinene menjadi terpineol dengan Katalisator Asam Khloro AsetatH Utami, A Budiman, S Sutijan, R Roto, WB Sediawan Jurnal Reaktor 13 (4), 248-253 2011 Immobilization of Saccharomycess cereviceae Biomass on Chitosan and Its Application as an Adsorbent for Pb (II) IonH Hasri, M Mudasir, NH Aprilita, R Roto Indonesian Journal of Chemistry 11 (2), 174-179 2011 Synthesis of α-Terpineol from Turpentine by Hydration in a Batch ReactorH Utami, A Budiman, S Sutijan, R Roto, WB Sediawan 2010 Photosensitizing Effect of Porphyrin Films as Organic PhotodetectorA Supriyanto, K Kusminarto, K Triyana, R Roto, MM Salleh, AA Umar Journal of Materials Science and Engineering 4 (8) 2010 Synthesis of-Terpineol from Turpentine by Hydration in a Batch ReactorH Utami, A Budiman, S Sutijan, R Roto, W Sediawan 2010 Kinetics Modeling for Synthesis of Terpineol from TurpentineH Utami, A Budiman, S Sutijan, R Roto, WB Sediawan 2009 Aplikasi Pengolahan Polutan Anion Khrom (VI) Dengan Menggunakan Agen Penukar Ion Hydrotalcite Zn-Al-SO4IT Roto, UN Sholikhah Manusia Dan Lingkungan 16 (2009) 2009 Removal of Hexacyanoferrate (II) Using Zn-Al-OAc Hydrotalcite as an Anion ExchangerR Roto, F Nindiyasari, I Tahir Journal of Physical science 20 (2), 73-84 2009 GEOC 80-Electrochemical quartz crystal microbalance study of mass changes at electrodes modified with cationic and anionic claysG Villemure, R Roto, L Sun ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY 235 2008 Sintesis Hidrotalsit Zn-AI-S04sebagai Agen Penukar Anion untuk Aplikasi Pengolahan Polutan Heksasianoferrat (II)IT Roto, UN Sholikhah Indonesian Journal of Chemistry 8 (2008) 2008 Synthesis Of Hydrotalcite Zn-Al-SO 4 As Anion Exchanger And Its Application To Treat Of Polllutant Contained Hexacyanoferrat (II)R Roto, I Tahir, UN Sholikhah Indonesian Journal of Chemistry 8 (3), 307-313 2008 Cyclic voltammetry of metal bipyridyl cations at redox active Ni–Al–Cl layered double hydroxide filmsR Roto, G Villemure Journal of Electroanalytical Chemistry 601 (1-2), 112-118 2007 Zn-Al layered double hydroxide as host material for sunscreen compound of p-aminobenzoic acidR Roto, I Tahir, M Mustofa Indonesian Journal of Chemistry 7 (1), 1-4 2007 EXTRACTION AND SPECIATION OF CHROMIUM (VI) AND CHROMIUM (III) AS ION-ASSOCIATION COMPLEXES OF TETRAMETHYLAMMONIUM-CHROMATEVW Wandoyo, M Mudasir, R Roto Indonesian Journal of Chemistry 6 (2), 150-154 2006 Mass transport in thin films of [Fe (CN) 6] 4− exchanged Ni–Al layered double hydroxide monitored with an electrochemical quartz crystal microbalanceR Roto, G Villemure Journal of Electroanalytical Chemistry 588 (1), 140-146 2006 Electrochemical impedance spectroscopy of electrodes modified with thin films of MgMnCO3 layered double hydroxidesR Roto, G Villemure Electrochimica acta 51 (12), 2539-2546 2006 Effect of potential cycling in basic solutions on the structure of Ni–Al layered double hydroxide filmsR Roto, L Yu, G Villemure Journal of Electroanalytical Chemistry 587 (2), 263-268 2006 Electron and ion transport in redox active transition metals layered double hydroxidesR Roto University of New Brunswick, Department of Chemistry 2005 Electrochemical quartz crystal microbalance study of mass transport in thin film of a redox active Ni–Al–Cl layered double hydroxideR Roto, A Yamagishi, G Villemure Journal of Electroanalytical Chemistry 572 (1), 101-108 2004 Electrochemical impedance spectroscopy of electrodes modified with thin films of Ni Al Cl layered double hydroxidesR Roto, G Villemure Journal of Electroanalytical Chemistry 527 (1-2), 123-130 2002 All-Solid-State Astringent Taste Sensor Using Polypyrrole-Carbon Black Composite as Ion-Electron TransducerM Tamara, D Lelono, K Triyana, R Roto Danang and Triyana, Kuwat and Roto, Roto, All-Solid-State Astringent Taste … PEMBENTUKAN ESTER BORAT TERKATALISIS ASAM UNTUK ANALISIS BORON SECARA SPEKTROFOTOMETRIREY Adu, R Roto, A Kuncaka EFFECT OF GOLD MODIFICATION ON THE PROPERTIES AND PHOTOACTIVITY OF Fe3O4/SiO2/TiO2 IN THE DEGRADATION OF NITROBENZENEK Mauludi, N Nuryono, R Roto, MID Mardjan, ES Kunarti Assessment of Multi-Nutrients and Heavy Metals in Inorganic Fertilizers Widely Used by Indonesian Farmers Using NAAS Murniasih, SJ Santosa, R Roto Indonesian Journal of Chemistry Chairman: Dr. Eng. Sunu Wibirama (UGM, Indonesia) Co-chairman: Dr. Eng. Ahmad Kusumaatmaja (UGM, Indonesia) Secretary: Ratih Fitria Putri, Ph. D.(UGM, Indonesia)MID Mardjan, TD Wahyuningsih, I Kartini, M Khairuddean, R Roto, … Co-ChairmanEK Triyana, RF Putri, ES Wibirama, F Makhrus, A Kusumaatmaja, … RAPID QUALITATIVE MEASUREMENT OF BRØNSTED ACIDITY OF ZEOLITE BY UV-VIS SPECTROPHOTOMETRIC METHOD USING ACID-BASE INDICATORR Roto, ES Kunarti, I Kartini, Y Rahayu, AY Widyaningsih, DR Wulandari, . |