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Submissions from 2017

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Gram-Scale Synthesis and Kinetic Study of Bright Carbon Dots from Citric Acid and Citrus japonica via a Microwave-Assisted Method, Regina C. So, Jemimah E. Sanggo, Lei Jin, Jose Mario A. Diaz, Raphael A. Guerrero, and Jie He

Submissions from 2016

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Science as a Non-issue, Fabian M. Dayrit

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Three-Step Stacking by Field-Enhanced Sample Injection, Sweeping, and Micelle to Solvent Stacking in Capillary Electrophoresis: Anionic Analytes, Wojciech Grochocki, Michal J. Markuszewski, and Joselito P. Quirino

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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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Preparation and Binding Evaluation of Histamine-Imprinted Microspheres via Conventional Thermal and RAFT-Mediated Free-Radical Polymerization, Edwin F. Romano Jr., Regina C. So, Scott W. Donne, and Clovia I. Holdsworth

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Development of Dieldrin, Endosulfan, and Hexachlorobenzene-Imprinted Polymers for Dye-Displacement Array Sensing, Ofelia V. Silverio, Regina C. So, Katrina Jean S. Elnar, Christian Malapit, and Ma. Cristine M. Nepomuceno

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

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Quality characteristics of virgin coconut oil:Comparisons with refined coconut oil, Fabian M. Dayrit, Ian Ken D. Dimzon, Melodina F. Valde, Jaclyn Elizabeth R. Santos, Mark Joseph Garrovillas, and Blanca J. Villarino

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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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Physico-Chemical and Microbiological Parameters in the Deterioration of Virgin Coconut Oil, Ian Ken D. Dimzon, Melodina F. Valde, Jaclyn Elizabeth R. Santos, Mark Joseph Garrovillas, Henson M. Dejarme, Jo Margarette W. Remollo, and Fabian M. Dayrit

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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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Novel Glycerol-Crosslinked Poly(acrylic acid) Hydrogel for Encapsulation and Release of Benzocaine, Angela Lisandra S. Lee, Gayzen A. Ordoñez, and Soma Chakraborty

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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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Development of κ-Carrageenan Poly(acrylic acid) Interpenetrating Network Hydrogel as Wound Dressing Patch, Soma Chakraborty, Modesto Tan Chua, and Haydee Dalafu

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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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Extraction Experiments Using Commerciallv Available Spices, Armando M. Guidote Jr, Maricar O. Ribo-Ramos, and Dante Gilbert L. de Leon

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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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Fabrication and Characterization of High-density Polyethylene - Coconut Coir Composites with Stearic Acid as Compatibilizer, Soma Chakraborty, Joseph King Eos Dawn V. Enriquez, Peter June Macalino Santiago, and Timothy Funcion Ong

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Evaluation of Silica Sol-Gel Microcapsule for the Controlled Release of Insect Repellent, N,N-Diethyl-2-methoxybenzamide, on Cotton, Ann Shireen Chan, Judy del Valle, Kendricks Lao, Christian Malapit, Modesto Tan Chua, and Regina C. So

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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

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Biocatalytic Synthesis of Diethanolamide Surfactants Under Mild Reaction Conditions, Galilee Uy Semblante, Modesto Tan Chua, and Soma Chakraborty

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

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Syntheses and characterization of homodinuclear manganese and cobalt complexes bridged by a hemiacetal or by an acetato group in a μ-(η2:η1) bridging mode, Armando M. Guidote Jr, Ken-ichi Ando, Yasuhiko Kurusu, Hirotaka Nagao, and Yoshiro Masuyama

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Synthesis, characterization and reactivity of a series of dinuclear copper complexes bearing the ligand bis[3-(2-hydroxybenzylideneamino)phenyl] sulfone and derivatives, Armando M. Guidote Jr, Ken-ichi Ando, Kazunori Terada, Yasuhiko Kurusu, Hirotaka Nagao, and Yoshiro Masuyama

Submissions from 2000

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Chirality and asymmetric transformations of axially chiral 4,5-disubstituted phenanthreneamides, Christoph Kiefl, Herbert Zinner, Ma. Assunta C. Cuyegkeng, and Alfred Eiglsperger

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The Analysis of Volatile Organic Compounds from Fresh and Dried Leaves of Vitex negundo by Thermal Desorption-Gas Chromatography, Denise G. Teotico, Maria Cristina A. Dancel, and Fabian M. Dayrit

Submissions from 1998

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Metal Absorption Capacities of κ-Carrageenan Blends, Ma. Assunta C. Cuyegkeng and Terence G. Henares

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Determination of Acid-Extractable Phenols and Organochlorine Pesticides in Laguna Lake by Gas Chromatography-Mass Spectrometry, Maria Cristina A. Dancel, Guinevere D. Ramos, and Fabian M. Dayrit

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Nano-Engineering of Molecular Films by Self-Assembly and Langmuir-Blodgett Techniques, Erwin P. Enriquez

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Nanoparticle dispersions in carrageenan films, Erwin P. Enriquez and Ann A. Aliganga

Submissions from 1997

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Properties and Macromolecular Structure of Unacetylated and Acetylated Nata de Coco, Ma. Assunta C. Cuyegkeng and Ma. Amy L. Dimalanta

Submissions from 1996

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Chain flattening and infrared dichroism of adsorbed poly (ethylene oxide), Erwin P. Enriquez and Steve Granick

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Effects of polypeptide conformation and surface bonding on static secondary ion mass spectra, C.G Worley, Erwin P. Enriquez, Edward T. Samulski, and R.W Linton

Submissions from 1995

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Anti-pest compounds from the volatile oil of Vitex negundo Linn, Fabian M. Dayrit, M C M Trono, B M Rejesus, and H Maini

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PMMA adsorption over previously adsorbed PS studied by polarized FTIR‐ATR, Erwin P. Enriquez, Hildegard M. Schneider, and Steve Granick

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Production of secondary metabolites by GC-MS analysis of the volatile oil and hexane fractions, Marissa G. Noel and Fabian M. Dayrit

Submissions from 1994

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Determination of the Quinine Content in the Bark of the Cinchona Tree Grown in Mt. Kitanglad, Bukidnon, Fabian M. Dayrit, Armando M. Guidote Jr, Maximino L. Generalao, and Constante Serna

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Identification of four iridoids in the pharmacologically-active fraction of Vitex negundo, L., Fabian M. Dayrit and Lolita G. Lagurin

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Effects of substrate on ultrathin films of poly(γ ‐benzyl‐L‐glutamate) by scanning probe microscopy, I.H Musselman, Erwin P. Enriquez, D.L Smith, Victoria F. Guarisco, and Edward T. Samulski

Submissions from 1993

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a-Helical polypeptide monolayers, Erwin P. Enriquez

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Screening of plant constituents for effect on glucose transport activity in Ehrlich ascites tumour cells, Chikage Murakami, Keiko Myoga, Ryoji Kasai, Kazuhiro Ohtani, Tomonori Kurokawa, Sadahiko Ishibashi, Fabian M. Dayrit, William G. Padolina, and Kazuo Yamasaki

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Insecticidal actions of several Philippine plants with emphasis on Vitex negundo L., B M Rejesus, H Maini, V R. Ocampo, Fabian M. Dayrit, and E G. Quintana

Submissions from 1992

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Study on the environmental impact of detergents; 3: toxicity of alkylbenzene sulfonates (ABS) and coconut fatty alcohol sulfates towards fish and rats, J T. Chio, Fabian M. Dayrit, P P. Ocampo, and V R. Ocampo

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Study on environmental impact of detergents; 1: detergent levels in Laguna de Bay and Davao River [Philippines], J T. Chio, E T. Kua, and Fabian M. Dayrit

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Behavior of rigid macromolecules in self‐assembly at an interface, Erwin Enriquez, Kimberley H. Gray, Victoria F. Guarisco, Richard W. Linton, Kevin D. Mar, and Edward T. Samulski

Submissions from 1991

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Self-Assembled α-Helical Polypeptide Films, Erwin Enriquez and Edward T. Samulski