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Prof. Karen S. Santiago, PhD |

Academic Qualifications

  • Doctor of Philosophy in Chemistry, University of Santo Tomas – Manila, Philippines, 2011
  • Sandwich Program, University of Wollongong – Australia, 2009
  • Master of Science in Chemistry, University of Santo Tomas – Manila, Philippines
  • Bachelor of Science in Chemistry, University of Santo Tomas – Manila, Philippines

Research Highlights

  • Chemiresistive electronic nose for differentiation of (a) medicinal plants ,and (b) Philippine coffee beans
  • Potentiometric electronic tongue for environmental monitoring
  • Nanomaterials-based gas sensors for clinical (e.g., breath sensors), and environmental monitoring
  • Controlled release materials

Research Interests


This research area focuses on the synthesis, and engineering of polymer materials to come up with platforms that may be used as sensors and actuators. The properties of these smart polymers are often improved by incorporation of materials in nanostate dimensions. Current specific applications include olfactory and taste sensing, and controlling of drug and fertilizer release.


Research Grants and Awards

  • Project leader, Manila Economic and Cultural Office-Taiwan Economic and Cultural Office (MECO-TECO)-assisted project on the synthesis, characterization, and gas sensing property of novel nanomaterials (on-going)
  • Project leader, Commission on Higher Education-Philippine Research Network-assisted project on headspace discrimination of Pandanus Species using CP-based electronic nose, FTIR Spectroscopy, and GC-MS (2013)
  • JSPS HOPE Fellow, March 2016

Professional Activities

  • Reviewer, Polymers for Advanced Technologies, Spectrochimica Acta, Talanta
  • Associate Director, University of Santo Tomas – Office of International Relations and Programs (2013-present)
  • Chairperson, University of Santo Tomas Department of Chemistry, College of Science (2011-2013)

Selected Publications

  • Rey Alfred G. Rañola, Karen S. Santiago, and Fortunato B. Sevilla III. “Use of array of conducting polymers for differentiation of coconut oil products,” Talanta146(2016)75–82.
  • JEP Banal, RA Rañola, KS Santiago, FB Sevilla III. “Electronic Nose Based on Conducting Polymers for the Discrimination of Medicinal Plants.” Applied Mechanics and Materials (2014) 490–491:1194–1198
  • Parawee Rattanakit, Simon E. Moulton, Karen S. Santiago, Saisunee Liawruangrath and Gordon G. Wallace. Extrusion printed polymer structures: A facile and versatile approach to tailored drug delivery platforms. International Journal of Pharmaceutics 422 (2012) 254– 263.
  • Polyaniline/Nylon Composite-based Trimethylamine Chemiresistor Sensor. Karen S. Santiago and Charles Patrick B. Chua. ACTA Manilana, ISSN 0065-1370, (2013) Vol. 61, 77-83.
  • T.M. Palaroan, K.S. Santiago, F.B. Sevilla III. “Chemiresistor sensor for TMA based on PEDOT: PSS for the assessment of fish freshness.” ACTA Manilana (2011) 59:11-18.
  • Ranola, R.A.G. and K.S. Santiago. Guasch, J.M. (Ed.). Estero de Sante Banez. Sharing a vision: Estero advocacy for a vibrant Pasig River. Manila, Philippines, Philippine Journal of Science, ISBN No. 978-971-0352-26-5, (2009) 45-48.
  • K.S. Santiago, P.A.T. Flores, I.H.A. Puno, E. Montano, R.A.G. Rañola, F.B.Sevilla III, “Polyaniline/Graphite Composites: In-situ Synthesis and Characterization,” ACTA Manilana, ISSN 0065-1370, (2008) Vol. 56, 37-42.