Tim Jeff Macabuhay Rodriguez
PhD Candidate · Applied Physics & Materials Science and Engineering
Materials Science and Engineering Program · College of Science · University of the Philippines Diliman
Researcher in plasmonic metal-organic-framework nanocomposites. Current work centers on AuNP@ZIF-8 and AuNS@ZIF-8 systems for two parallel applications: photocatalytic degradation of organic pollutants and multimodal optical sensing of trace analytes.
Current research threads
Shape-Dependent Multimodal Sensing in AuNP@ZIF-8 and AuNS@ZIF-8 for Methylene Blue Detection
Comparing spherical (AuNP) and branched (AuNS) gold morphologies for multimodal MB detection across colorimetric, fluorescence, and SERS modes. Branched AuNS@ZIF-8 shows the strongest SERS enhancement, consistent with localized field intensification at tip geometries.
→ Manuscript in preparation · 2026Sunlight-Assisted Degradation of Methylene Blue Using Surface-Decorated AuNP@ZIF-8 and AuNS@ZIF-8 Nanocomposites via Time-Gated Growth
Time-gated growth strategy produces surface-decorated AuNP@ZIF-8 and AuNS@ZIF-8 nanocomposites that drive sunlight-assisted dye degradation. Demonstrates dual-mode capability of the same material platform — sensing and remediation.
→ Accepted for publication · Journal of Experimental Nanoscience (Taylor & Francis) · DOI forthcoming · MS ID TJEN-FP-2025-0080.R2Publications & presentations
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Shape-Dependent Multimodal Sensing in AuNP@ZIF-8 and AuNS@ZIF-8 for Methylene Blue DetectionPoster · in preparation
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Sunlight-Assisted Degradation of Methylene Blue Using Surface-Decorated AuNP@ZIF-8 and AuNS@ZIF-8 Nanocomposites Synthesized via a Time-Gated Growth StrategyAccepted for publication · DOI forthcoming
Education
PhD Candidate · Applied Physics & Materials Science and Engineering
University of the Philippines Diliman · ongoing
MSc · Materials Science and Engineering
University of the Philippines Diliman · completed
BSc · Applied Physics
National Institute of Physics, University of the Philippines Diliman
Contact & links
Acknowledgements
This work is supported by the Department of Science and Technology — Philippine Council for Industry, Energy, and Emerging Technology Research and Development (DOST-PCIEERD), the University of the Philippines Office of Industry Liaison (UP OIL), and the Innovative Photon Manipulation Team of RIKEN.