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Bacabac, Rommel G.

Bacabac, Rommel G.

Full Professor

rbacabac@usc.edu.ph

Degrees

A.B. Classical Philosophy, Christ the King Mission Seminary, 1990
B.S. Physics, University of San Carlos, 1993
M.S. Experimental Physics, Vrije Universiteit, 1999
Ph.D. Physics, Vrije Universiteit, 2006

Research Interests:

Bone cell mechanosensitivity, microgravity, biopolymer mechanics, microrheology, microfluidics, artificial tissue constructs, bone tissue engineering

Recent Publications:

  1. Banuag, L.C.; Sinogaya, J.R.; Bacabac, R.G.; Bacalla, X.L.; Sarmiento, R.L.A.C.. Optical-feedback Confocal Microscope with LabVIEW and MATLAB Integration for Solar Cell Characterization. Philippine Journal of Science. 2025, https://doi.org/10.56899/154.04.11.
  2. Yusakul, G.; Jomrit, J.; Bacabac, R.G.; Prasopthum, A.. 3D printed personalized wound dressings using a hydrophobic deep eutectic solvent (HDES)-formulated emulgel. Rsc Advances. 2024, https://doi.org/10.1039/d4ra05456c.
  3. Rios, W.V.; Geonzon, L.C.; Roque, A.M.; Abiquibil, M.R.B.; Pilapil, M.D.A.; Lingaro, M.A.P.; Suarez, H.N.; Sarmiento, R.L.A.C.; Matsukawa, S.; Bacabac, R.G.. The effects of stem bromelain on the gelation behavior of kappa carrageenan under linear and nonlinear rheological regimes. Food Hydrocolloids. 2024, https://doi.org/10.1016/j.foodhyd.2023.109662.
  4. Flores, S.L.; Fukuda, G.; Yang, X.; Bacabac, R.G.; Matsukawa, S.. Analysis of nonlinear oscillatory shear using a modified Maxwell model employing odd-power series expansions. Journal of Biorheology. 2024, https://doi.org/10.17106/jbr.38.2.
  5. Geonzon, L.C.; Kobayashi, M.; Tassieri, M.; Bacabac, R.G.; Adachi, Y.; Matsukawa, S.. Microrheological properties and local structure of ι-carrageenan gels probed by using optical tweezers. Food Hydrocolloids. 2023, https://doi.org/10.1016/j.foodhyd.2022.108325.
  6. Cao, W.; Jin, J.; Wu, G.; Bravenboer, N.; Helder, M.N.; Schulten, E.A.J.M.; Bacabac, R.G.; Pathak, J.L.; Klein-Nulend, J.. Kappa-carrageenan-Functionalization of octacalcium phosphate-coated titanium Discs enhances pre-osteoblast behavior and osteogenic differentiation. Frontiers in Bioengineering and Biotechnology. 2022, https://doi.org/10.3389/fbioe.2022.1011853.
  7. Abbasi-Ravasjani, S.; Seddiqi, H.; Moghaddaszadeh, A.; Ghiasvand, M.E.; Jin, J.; Oliaei, E.; Bacabac, R.G.; Klein-Nulend, J.. Sulfated carboxymethyl cellulose and carboxymethyl κ-carrageenan immobilization on 3D-printed poly-ε-caprolactone scaffolds differentially promote pre-osteoblast proliferation and osteogenic activity. Frontiers in Bioengineering and Biotechnology. 2022, https://doi.org/10.3389/fbioe.2022.957263.
  8. Roque, A.M.; Montinola, D.; Geonzon, L.; Matsukawa, S.; Lobarbio, C.F.Y.; Taboada, E.B.; Bacabac, R.G.. Rheological elucidation of the viscoelastic properties and network interaction of mixed high-methoxyl pectin and kappa-carrageenan gels. Food Hydrocolloids. 2022, https://doi.org/10.1016/j.foodhyd.2022.107647.
  9. Geonzon, L.C.; Santoya, A.M.; Jung, H.; Yuson, H.; Bacabac, R.G.; Matsukawa, S.. Study on the heterogeneity in mixture carrageenan gels viewed by long time particle tracking. Food Hydrocolloids. 2022, https://doi.org/10.1016/j.foodhyd.2021.107095.
  10. Cao, W.; Jin, J.; Wu, G.; Bravenboer, N.; Helder, M.N.; Pathak, J.L.; Zandieh-Doulabi, B.; Hogervorst, J.M.A.; Matsukawa, S.; Geonzon, L.C.; Bacabac, R.G.; Schulten, E.A.J.M.; Klein-Nulend, J.. K-carrageenan stimulates pre-osteoblast proliferation and osteogenic differentiation: A potential factor for the promotion of bone regeneration?. Molecules. 2021, https://doi.org/10.3390/molecules26206131.
  11. Seddiqi, H.; Oliaei, E.; Honarkar, H.; Jin, J.; Geonzon, L.C.; Bacabac, R.G.; Klein-Nulend, J.. Cellulose and its derivatives: towards biomedical applications. Cellulose. 2021, https://doi.org/10.1007/s10570-020-03674-w.
  12. Geonzon, L.C.; Descallar, F.B.A.; Du, L.; Bacabac, R.G.; Matsukawa, S.. Gelation mechanism and network structure in gels of carrageenans and their mixtures viewed at different length scales – A review. Food Hydrocolloids. 2020, https://doi.org/10.1016/j.foodhyd.2020.106039.
  13. Geonzon, L.C.; Zhuang, X.; Santoya, A.M.; Bacabac, R.G.; Xie, J.; Matsukawa, S.. Gelation mechanism and network structure of mixed kappa carrageenan/lambda carrageenan gels studied by macroscopic and microscopic observation methods. Food Hydrocolloids. 2020, https://doi.org/10.1016/j.foodhyd.2020.105759.
  14. Aure, R.R.L.; Bernido, C.C.; Carpio-Bernido, M.V.; Bacabac, R.G.. Damped White Noise Diffusion with Memory for Diffusing Microprobes in Ageing Fibrin Gels. Biophysical Journal. 2019, https://doi.org/10.1016/j.bpj.2019.08.014.
  15. Geonzon, L.C.; Bacabac, R.G.; Matsukawa, S.. Network structure and gelation mechanism of kappa and iota carrageenan elucidated by multiple particle tracking. Food Hydrocolloids. 2019, https://doi.org/10.1016/j.foodhyd.2019.01.062.
  16. Geonzon, L.C.; Bacabac, R.G.; Matsukawa, S.. Microscopic characterization of phase separation in mixed carrageenan gels using particle tracking. Journal of the Electrochemical Society. 2019, https://doi.org/10.1149/2.0351909jes.
  17. van Esterik, F.A.S.; Vega, A.V.; Pajanonot, K.A.T.; Cuizon, D.R.; Velayo, M.E.; Dejito, J.; Flores, S.L.; Klein-Nulend, J.; Bacabac, R.G.. Fibrin network adaptation to cell-generated forces. Rheologica Acta. 2018, https://doi.org/10.1007/s00397-018-1099-3.
  18. Wu, V.; van Oers, R.F.M.; Schulten, E.A.J.M.; Helder, M.N.; Bacabac, R.G.; Klein-Nulend, J.. Osteocyte morphology and orientation in relation to strain in the jaw bone. International Journal of Oral Science. 2018, https://doi.org/10.1038/s41368-017-0007-5.
  19. Geonzon, L.C.; Flores, S.L.; Bacabac, R.G.; Matsukawa, S.. (Invited) phase separation in mixed polysaccharide gels. Ecs Transactions. 2018, https://doi.org/10.1149/08801.0009ecst.
  20. Flores, S.L.; Descallar, F.B.A.; Matsukawa, S.; Bacabac, R.G.. Dynamic rheological properties of mixed carrageenan gels under large strains. Journal of Biorheology. 2017, https://doi.org/10.17106/jbr.31.35.
  21. van Oers, R.F.M.; Wang, H.; Bacabac, R.G.. Osteocyte Shape and Mechanical Loading. Current Osteoporosis Reports. 2015, https://doi.org/10.1007/s11914-015-0256-1.
  22. Klein-Nulend, J.; van Oers, R.F.M.; Bakker, A.D.; Bacabac, R.G.. Bone cell mechanosensitivity, estrogen deficiency, and osteoporosis. Journal of Biomechanics. 2015, https://doi.org/10.1016/j.jbiomech.2014.12.007.
  23. Pelayo, J.C.; Badiola, R.A.; Castanãres, J.; Pili, U.; Violanda, R.; Bacabac, R.. Surface geometry based hydrophobicity of the PDMS for microfluidic devices. Iop Conference Series Materials Science and Engineering. 2015, https://doi.org/10.1088/1757-899X/79/1/012027.
  24. Van Oers, R.F.M.; Klein-Nulend, J.; Bacabac, R.G.. The osteocyte as an orchestrator of bone remodeling: An engineer's perspective. Clinical Reviews in Bone and Mineral Metabolism. 2014, https://doi.org/10.1007/s12018-014-9154-9.
  25. Bacabac, R.G.; Ayade, H.; Villaruz, L.G.M.; Sarmiento, R.; Otadoy, R.. Microrheology of biopolymers at non-thermal regimes. Computational Methods in Applied Sciences. 2014, https://doi.org/10.1007/978-94-007-7073-7_5.

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