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Submissions from 2020

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Improving the Value of the Coconut with Biotechnology, Fabian M. Dayrit and Quang Nguyen

Few-layer-graphene as intercalating agent for spray-pyrolysed fluorine-doped tin oxide transparent conducting electrode, L Go, Lea Macaraig, and Erwin Enriquez

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Asymmetric Reactions in Water Catalyzed by L-Proline Tethered on Thermoresponsive Ionic Copolymers, Noriyuki Suzuki, Daisuke Mizuno, Armando M. Guidote Jr, Shun Koyama, Yoshihiro Masuyama, and Masahiro Rikukawa

Submissions from 2019

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Glycerol-modified poly(ε-caprolactone): an biocatalytic approach to improve the hydrophilicity of poly(ε-caprolactone), Soma Chakraborty; James Nicolas M. Pagaduan; Zara Kryzel A. Melgar,; Steffen Seitz; Kai Kan; and Hiroharu Ajiro

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The Challenge of Single-Use Plastic, Fabian M. Dayrit

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Radial multi-stationary phase thin-layer chromatography for the field-ready fingerprinting of herbal materials, Erwin Enriquez

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Galvanic dissolved oxygen sensor based from inkjet printed silver cathode and electrodeposited zinc anode, Erwin P. Enriquez and Lance P. Go

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Chemiresistors Based on SnO2, TiO2 and SnO2/TiO2 Films for Possible Sensing of Na+ and Ca2+ ions, Erwin P. Enriquez, Denniell Ann Hurboda, Lea Macaraig, and Ted Limpoco

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Assessment of Quantity and Quality of Microplastics in the Sediments, Waters, Oysters, and Selected Fish Species in Key Sites Along the Bombong Estuary and the Coastal Waters of Ticalan in San Juan, Batangas, Emilyn Q. Espiritu, Sophia Angeli SN Dayrit, Annabel Soledad O. Coronel, Natasha Sophia C. Paz, Pilar Isabel L. Ronquillo, Virgil Christian G. Castillo, and Erwin P. Enriquez

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Few-layer-graphene as intercalating agent for spray-pyrolysed fluorine-doped tin oxide transparent conducting electrode, Liew Chien Go, Lea Macaraig, and Erwin P. Enriquez

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Design of Potentiometric Sensor Arrays Using Fisher Information and Genetic Algorithm, Sarah May Sibug-Torres and Erwin Enriquez

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Information Theoretic Analysis of Potentiometric Sensor Array Configurations, Sarah May Sibug-Torres and Erwin Enriquez

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Smartphone-based image analysis and chemometric recognition of the thin-layer chromatographic fingerprints of herbal materials, Sarah May Sibug-Torres, Isagani D. Padolina, Philip Cruz, Felan Carlo Garcia, Mark Joseph Garrovillas, Maria Regina Yabilo, and Erwin Enriquez

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Radial multi-stationary phase thin-layer chromatography for the field-ready fingerprinting of herbal materials, Sarah May Sibug-Torres, Isagani D. Padolina, and Erwin Enriquez

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Investigation of glycerol hydrogen-bonding networks in choline chloride/glycerol eutectic-forming liquids using neutron diffraction, Adam H. Turner and John D. Holbrey

Submissions from 2018

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Removal of Triolein Lipid From Aqueous System by Molecularly Imprinted Chitosan and Its Derivative, Soma Chakraborty and Xyza Jane Templonuevo

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Polyelectrolyte Complex of Chitosan and K-Carrageenan as Potential Scaffold for Tissue Engineering, Soma Chakraborty, Kristina Angelica M. Yatco, Edward King L. Chua, and Modesto Tan Chua

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Untargeted Bioassay Strategy for Medicinal Plants: In Vitro Antidiabetic Activity and 13C NMR Profiling of Extracts from Vitex negundo L, Fabian M. Dayrit, Myrnille Joy B. Zabala, and Lolita G. Lagurin

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Trace organic chemical pollutants from the lake waters of San Pablo City, Philippines by targeted and non-targeted analysis, Ian Ken D. Dimzon, Ann Selma Morata, Janine Müller, Roy Kristian Yanela, Stephan Lebertz, Heike Weil, Teresita R. Perez, Fabian M. Dayrit, and Thomas P. Knepper

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Electrowetting on dielectric (EWOD) of sessile microdroplets containing gold nanoparticles, Erwin Enriquez, Raphael A. Guerrero, and Crismar Patacsil

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Controlled Microwave-Hydrolyzed Starch as Stabilizer for Green Formulation of Aqueous Gold-Nanoparticle Ink for Flexible Printed Electronics, Erwin P. Enriquez

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Controlled Microwave-Hydrolyzed Starch as a Stabilizer for Green Formulation of Aqueous Gold Nanoparticle Ink for Flexible Printed Electronics, Erwin P. Enriquez, Nikita P. Bacalzo, Lance P. Go, Christine Joy Querebilo, Peter Hildebrandt, and F.T Limpoco

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Educational Attainment, Teaching Experience, Professional Development and Self-Efficacy as Predictors of Chemistry Content Knowledge: Implication for the Development of a National Promotion Examination, Jina Denise R. Galiza, Rhodora F. Nicdao, and Armando M. Guidote Jr

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Palladium-Catalyzed Carbonyl Allylation Reactions Using Tin Chloride: A Mini-Review, Armando M. Guidote Jr, Mikael John A. Baltazar, Roy Kristian C. Yanela, and Noriyuki Suzuki

Submissions from 2017

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Carrageenan for encapsulation and immobilization of flavor, fragrance, probiotics, and enzymes: A review, Soma Chakraborty

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Novel Chitosan Microparticles for Sequestration of Overdosed Drug, Soma Chakraborty, Patricia Teresa F. Agbayani, and Modesto Tan Chua

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Coconut Oil: From Diet to Therapy, Conrado S. Dayrit and Fabian M. Dayrit

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A Half-Truth is Not the Whole Truth: The AHA Position on Saturated Fat, Fabian M. Dayrit

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Coconut Oil: Bringing History, Common Sense and Science Together, Fabian M. Dayrit

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Dietary Guidelines and its Implications for Coconut Oil, Fabian M. Dayrit

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From Artemisia annua L . to Artemisinins: The Discovery and Development of Artemisinins and Antimalarial Agents. Edited by YouYou Tu, Fabian M. Dayrit

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How the Wrong Science Is Making People Sick: The Truth About Saturated Fat, Animal Fat and Coconut Oil, Fabian M. Dayrit

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The Warning on Saturated Fat: From Defective Experiments to Defective Guidelines, Fabian M. Dayrit

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The Warning on Saturated Fat: From Defective Experiments to Defective Guidelines, Fabian M. Dayrit

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1H and 13C NMR for the Profiling of Natural Product Extracts: Theory and Applications, Fabian M. Dayrit and Angel C. de Dios

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Chemical profiling and chemical standardization of Vitex negundo using 13C NMR, Fabian M. Dayrit, Lolita G. Lagurin, John Daniel J. Magsalin, and Anthony R. Zosa

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Chemical profiling of Philippine Moringa oleifera leaves, Lolita G. Lagurin, Fabian M. Dayrit, Maynard O. Galingana, J.E.S Escaño, and John Daniel J. Magsalin

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Assessing In-service Teachers’ Chemistry Content Knowledge and Self-efficacy in Teaching the K to 12 Science Curriculum, Yna Camille A. Mongcal, Queena N. Lee-Chua, and Armando M. Guidote Jr

Submissions from 2016

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Content Analysis of the Discussion of the Atom in General Chemistry Textbooks Using Evaluation Criteria Based on the Nature of Science and Philosophy of Chemistry, Armando M. Guidote Jr, Angelo Julian E. Perez, Gilbert U. Yu, and Michael Ner E. Mariano

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Cationic and Neutral Rotaxanes Having Different Functional Groups in the Axle Molecule and Their Coordination to PtII, Gilbert U. Yu, Yuji Suzaki, and Kohtaro Osakada

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Ferrocene-containing [1]-, [2]-, [3]- and [4]rotaxanes synthesized from a common precursor, Gilbert U. Yu, Yuji Suzaki, and Kohtaro Osakada

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13C Nuclear Magnetic Resonance Phytochemical Profiling of the In Vitro Antidiabetic Potential of Vitex negundo L., Myrnille Joy B. Zabala, Lolita G. Lagurin, and Fabian M. Dayrit

Submissions from 2015

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Chitosan and Quat-188 Modified Chitosan Poly(acrylic acid) Semi-Interpenetrating Network For Controlled Release of Drugs, Christian Jil R. Benitez, Christian Gonzales, Mari Kaira O. Leal, Ivy Marie C. Andalis, Modesto Tan Chua, Takahiko Nakaoki, and Soma Chakraborty

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Low-Cost Magnetic Stirrer from Recycled Computer Parts with Optional Hot Plate, Armando M. Guidote Jr, Giselle Mae M. Pacot, and Paul M. Cabacungan

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Making a Low-Cost Soda Can Ethanol Burner for Out-of-Laboratory Flame Test Demonstrations and Experiments, Henson L. Lee Yu, Perfecto N. Domingo Jr, Elliard Roswell S. Yanza, and Armando M. Guidote Jr

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The green chemistry and Filipino approach to high school experiments in Saint Paul College Pasig, Ronald G. Santos and Armando M. Guidote Jr

Submissions from 2014

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Novel glycerol crosslinked poly(methyl methacrylate) synthesized by chemo-enzymatic method for controlled release application, Melannie S. Carna and Soma Chakraborty

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Nanoparticulate molecularly imprinted poly(acrylic acid) as potential stationary phase for chiral separation of ofloxacin, Soma Chakraborty, Cheem Conanan Razonabe, and Modesto Tan Chua

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Zebrafish Bioassay-Guided Microfractionation Identifies Anticonvulsant Steroid Glycosides from the Philippine Medicinal Plant Solanum torvum, Soura Challal, Olivia Erin M. Buenafe, Emerson F. Quiroz, Snezana Maljevic, Laurence Marcourt, Merle Bock, Werner Kloeti, Fabian M. Dayrit, Alan L. Harvey, Holger Lerche, Camila V. Esguerra, Peter A M de Witte, Jean-Luc Wolfender, and Alexander D. Crawford

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One-step synthesis of mesoporous silica–graphene composites by simultaneous hydrothermal coupling and reduction of graphene oxide, Juliet Q. Dalagan and Erwin P. Enriquez

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Lauric acid is a medium-chain fatty acid, coconut oil is a medium-chain triglyceride, Fabian M. Dayrit

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The Properties of Lauric Acid and Their Significance in Coconut Oil, Fabian M. Dayrit

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Polyaniline In Situ Grafted to Graphene Sheets, Erwin P. Enriquez, Elliard Roswell S. Yanza, Geoffrey Matthew C. Tan, Christine Joy Querebilo, Armando Somintac, and Arnel Salvador

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Electronic Effects in Oxidation Reactions Utilizing Dinuclear Copper Complexes with the Bis[3-(2-hydroxybenzylideneamino)phenyl] Sulfone Ligand, Armando M. Guidote Jr, Ronald L. Reyes, Riyo Kashihara, Yasuhiko Kurusu, and Yoshihiro Masuyama

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Micellar electrokinetic chromatography of the constituents in Philippine lagundi (Vitex negundo) herbal products, Heide R. Rabanes, Armando M. Guidote Jr, and Joselito P. Quirino

Submissions from 2013

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Interaction of Diatom Silica with Graphene, Juliet Q. Dalagan and Erwin P. Enriquez

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Growth of copper on diatom silica by electroless deposition technique, Juliet Q. Dalagan, Erwin P. Enriquez, Lain-Jong Li, and Cheng-Te Lin

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Simultaneous functionalization and reduction of graphene oxide with diatom silica, Erwin P. Enriquez, Juliet Q. Dalagan, and Lain-Jong Li

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Graphene–anthocyanin mixture as photosensitizer for dye-sensitized solar cell, Erwin P. Enriquez and Anna Carissa M. San Esteban

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Supercapacitor carbon electrodes from pyrolyzed glycerol, Erwin P. Enriquez, Geoffrey Matthew C. Tan, and Jerick A. Imbao

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Optical properties of surface deposited gold nanoparticle on polydimethylsiloxane composite (sAuNP-PDMS) film, Crismar Patacsil, Raphael A. Guerrero, Jan Patrick Calupitan, and Erwin P. Enriquez

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Incorporating graphene in anthocyanin-based dye-sensitized solar cells, Anna Carissa M. San Esteban and Erwin P. Enriquez

Submissions from 2012

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Paper supercapacitor using carbon from waste coffee grounds, Rafael Jumar Chu, Geoffrey Matthew C. Tan, and Erwin P. Enriquez

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Nucleic-Acid Based Lateral Flow Strip Biosensor via Competitive Binding for Possible Dengue Detection, Erwin P. Enriquez, Henson L. Lee Yu, Christine Marie Montesa, and Nina Rosario L. Rojas

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Biomarkers of Asthma: Recent Patents from 2009-2011, Ma. Henrietta Olmos-Dela Cruz, Rene Angelo S. Macahig, Mailyn M. Terrado, Henson L. Lee Yu, Armando M. Guidote Jr, and Joselito P. Quirino

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Raman spectroscopy of exfoliated graphene sheets and chemically-modified graphene samples, Christine Joy Querebilo, Erwin P. Enriquez, Armando S. Somintac, and Arnel Salvador

Submissions from 2011

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Surface Imaging of Cold DC Magnetized Air Plasma Treated Poly (dimethyl siloxane) Surfaces, Myrron Albert C. Aguila, Ivan B. Culaba, and Erwin P. Enriquez

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Developing a chemical and hazardous waste inventory system, Fabian M. Dayrit, Jaclyn Elizabeth R. Santos, Franz Nicolas N. Alfonso, and Fernando C. Mendizabal Jr

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Analysis of Volatile Organic Compounds in Virgin Coconut Oil and their Sensory Attibutes, Fabian M. Dayrit, Jaclyn Elizabeth R. Santos, Bianca J. Villarino, and Anthony R. Zosa

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Sweeping–micellar electrokinetic chromatography for the simultaneous analysis of tricyclic antidepressant and β-blocker drugs in wastewater, Armando M. Guidote Jr, Agnes T. Aranas, Paul R. Haddad, and Joselito P. Quirino

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Two-step stacking in capillary zone electrophoresis featuring sweeping and micelle to solvent stacking: II. Organic anions, Joselito P. Quirino and Armando M. Guidote Jr

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Capillary electrophoresis of natural products: Highlights of the last five years (2006–2010), Heide R. Rabanes, Armando M. Guidote Jr, and Joselito P. Quirino

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Opacity of P(MMA-MAA)-PMMA Composite Latex System with Varying MAA Concentration, Gilbert U. Yu, Jerry T. Dy, and Erwin P. Enriquez

Submissions from 2010

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Surface energies of magnetic recording head components, Eric C. Abenojar, John P. Herber, and Erwin P. Enriquez

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Sustained hydrophilicity of plasma-treated PDMS surfaces by water immersion, Myrron Albert C. Aguila, Ivan B. Culaba, and Erwin P. Enriquez

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Control of Networked Systems Containing Multiple Agents, Jose B. Cruz Jr, Gregory L. Tangonan, Raymond R. Tan, Nathaniel Joseph C. Libatique, Fabian M. Dayrit, and Alvin B. Culaba

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Controlled Release ot Methvl Salicvlate in ChitosanPoli[N-Isopropvlacrvlamide] Semi-Interpenetrating Networks, Ma. Assunta C. Cuyegkeng and Terence G. Henares

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On-line sample concentration of organic anions in capillary zone electrophoresis by micelle to solvent stacking, Armando M. Guidote Jr and Joselito P. Quirino

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Iota-carrageenan hydrolysis by Pseudoalteromonas carrageenovora IFO12985, Bernadette M. Henares, Erwin P. Enriquez, Fabian M. Dayrit, and Nina Rosario L. Rojas

Submissions from 2009

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Sweeping and New On-line Sample Preconcentration Techniques in Capillary Electrophoresis, Armando M. Guidote Jr, Joselito P. Quirino, and Agnes T. Aranas

Submissions from 2008

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Analysis of Monoglycerides, Diglycerides, Sterols, and Free Fatty Acids in Coconut (Cocos nucifera L.) Oil by 31P NMR Spectroscopy, Fabian M. Dayrit, Olivia Erin M. Buenafe, Edward T. Chainani, and Ian Mitchelle S. de Vera

Submissions from 2007

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Essential quality parameters of commercial virgin coconut oil, Fabian M. Dayrit, Olivia Erin M. Buenafe, Edward T. Chainani, Ian Mitchelle S. de Vera, Ian Ken D. Dimzon, Estrella G. Gonzales, and Jaclyn Elizabeth R. Santos

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Standards for essential composition and quality factors of commercial virgin coconut oil and its differentiation from RBD coconut oil and copra oil, Fabian M. Dayrit, Olivia Erin M. Buenafe, Edward T. Chainani, Ian Mitchelle S. de Vera, Ian Ken D. Dimzon, Estrella G. Gonzales, and Jaclyn Elizabeth R. Santos

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Studies on Standards for Commercial Virgin Coconut Oil, Fabian M. Dayrit, Olivia Erin M. Buenafe, Edward T. Chainani, Ian Mitchelle S. de Vera, Ian Ken D. Dimzon, Estrella G. Gonzales, and Jaclyn Elizabeth R. Santos

Submissions from 2006

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Structural analysis of κ-carrageenan sulfated oligosaccharides by positive mode Nano-ESI-FTICR-MS and MS/MS by SORI-CID, Jennifer T. Aguilan, Fabian M. Dayrit, Jinhua Zhang, Milady R. Niñonuevo, and Carlito B. Lebrilla

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Nano-chemistry, Erwin P. Enriquez

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Composition ot Glvceride Esters of Lauric Acid bV FTIR Band Shape Analysis, Deniz P. Wong, Modesto Tan Chua, and Erwin P. Enriquez

Submissions from 2005

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Structural analysis of carrageenan from farmed varieties of Philippine seaweed, Jennifer T. Aguilan, J E. Broom, J A. Hammingson, Fabian M. Dayrit, M N E Montaño, M C. Dancel, M R. Niñonuevo, and R H. Furneaux

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Radiolytic damage to freeze-dried human amniotic membrane, Chester C. Deocaris, Lucille B. Abad, Erwin P. Enriquez, Zenaida M. De Guzman, Ann A. Aliganga, Marianne B. Tangonan, Mitos M. Tolentino, Luzviminda V. Ignacio, and Custer C. Deocaris

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Triperpenes in the callus culture of Vitex negundo L, Marissa G. Noel and Fabian M. Dayrit

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Seasonal variations in the yield, gelling properties, and chemical composition of agars from Gracilaria eucheumoides and Gelidiella acerosa (Rhodophyta) from the Philippines, R.D Villanueva, Erwin P. Enriquez, N.E Montaño, and A. K. A Aliganga

Submissions from 2004

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Impurity profiling of methamphetamine hydrochloride drugs seized in the Philippines, Fabian M. Dayrit and Morphy C. Dumlao

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Development of an analytical method for 3-monochloropropane-1, 2-diol in soy sauce using 4-heptanone as derivatizing agent, Fabian M. Dayrit and Milady R. Niñonuevo

Submissions from 2003

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Solvent Extraction Using Safe and Commonly Available Materials to Demonstrate the Difference in Solubility of Two Mixed Solutes, Dante Gilbert L. de Leon, Armando M. Guidote Jr, Fred Juergens, and Ed Vitz

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Possible Cobalt-Cobalt Bridging by a Hemiacetal in the Dinuclear Cobalt Complex Bearing the Ligand Bis(3-(2-pyridylmethyleneamino)phenyl) Sulfone, Armando M. Guidote Jr, Tomoko Imajo, Yasuhiko Kurusu, and Yoshiro Masuyama

Submissions from 2002

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Application of linear prediction and rapid acquisition to nuclear magnetic resonance, Edward T. Chainani, Fabian M. Dayrit, and L G. Sison

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Comparison of water retention and thermal properties of various polysaccharides, their derivatives and blends, Ma. Assunta C. Cuyegkeng, Terence G. Henares, Janeth B. Presores, and Ma. Amy L. Dimalanta

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Chemistry beyond the Classroom: Linking High School Chemistry with the Local Community, Ma. Assunta C. Cuyegkeng, Chona L. Maderal, and Ann Joan H. Vallespin

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Accumulation of lignin residues in organic matter fractions of lowland rice soils: a pyrolysis-GC-MS study, D C. Olk, M C. Dancel, E Moscoso, R R. Jimenez, and Fabian M. Dayrit

Submissions from 2001

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Development of Quality Assurance Methods for Medicinal Plants Using Gas Chromatography Analysis, Fabian M. Dayrit and Marites J. Pasuelo