About Us

It is all about high Impact Collaborations and initiatives to reduce healthcare disparities

Since 2015, the Global Health Catalyst has been at the forefront of catalyzing win-win collaborations and initiatives to eliminate health disparities in the USA and across the world. This involves global health collaborations amongst  faculty, students, staff and other partners in the USA and across the globe, with unprecedented engagement of the diaspora, industry, policy makers, athletes and celebrities as catalysts.  To facilitate collaborations, the  GHC particularly leverages advanced information and communication technologies and artificial intelligence to overcome space-time barriers to collaborations. Flagship GHC initiatives include yearly global health catalyst summits, a comprehensive cancer center in the cloud (C4) and the International Phytomedicines and Medical Cannabis Institute. Join us to collaborate for global health impact.

Publications

Select publications: Updated list coming soon
  • W Ngwa et al, Boosting the Absopal effect of local radiotherapy, Nature Reviews Cancer, in press
  • W Ngwa, P Nguyen, Global Oncology, IOP Publishing, 2017
  • W Ngwa, T Ngoma, Emerging Models for Global Health in Radiation Oncology, IOP Publishing, 2016
  • Hao Y, Altundal Y, Moreau M, Sajo E, Kumar R, Ngwa W. Potential for enhancing external beam radiotherapy for lung cancer using high-Z nanoparticles administered via inhalation. Phys Med Biol. 2015 Sep 21; 60(18):7035-43.

    View in: PubMed

  • Altundal Y, Sajo E, Ngwa W. SU-D-210-04: Using Radiotherapy Biomaterials to Brand and Track Deadly Cancer Cells. Med Phys. 2015 Jun; 42(6):3222.

    View in: PubMed

  • Cifter G, Sajo E, Korideck H, Kumar R, Sridhar S, Cormack R, Makrigiorgos G, Ngwa W. MO-FG-BRA-05: Next Generation Radiotherapy Biomaterials Loaded With Gold Nanoparticles. Med Phys. 2015 Jun; 42(6):3565.

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  • Jermoumi M, Sajo E, Houari K, Ngwa W. TU-F-CAMPUS-T-05: Dose Escalation to Biological Tumor Volumes of Prostate Cancer Patients Using Gold Nanoparticles. Med Phys. 2015 Jun; 42(6):3644.

    View in: PubMed

  • Hao Y, Cifter G, Altundal Y, Sinha N, Moreau M, Sajo E, Makrigiorgos G, Ngwa W. MO-FG-BRA-04: Leveraging the Abscopal Effect Via New Design Radiotherapy Biomaterials Loaded with Immune Checkpoint Inhibitors. Med Phys. 2015 Jun; 42(6):3565.

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  • Mainali M, Ngwa W, Cifter G, Celli J. TU-F-CAMPUS-T-01: Potential of Using Cerium Oxide Nanoparticles (CONP) for Protecting Healthy Tissue During Accelerated Partial Breast Irradiation (APBI). Med Phys. 2015 Jun; 42(6):3643.

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  • Sinha N, Cifter G, Ngwa W. SU-E-T-750: Three Dimensional in Silico Study of Brachytherapy Application with In-Situ Dose-Painting Administered Via Gold-Nanoparticle Eluters. Med Phys. 2015 Jun; 42(6):3509.

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  • Brivio D, Zygmanski P, Sajo E, Makrigiorgos G, Ngwa W. TU-F-CAMPUS-T-02: Monte Carlo Evaluation of Kilovoltage Radiosurgery with AuNPs for Age Related Macular Degeneration (AMD). Med Phys. 2015 Jun; 42(6):3644.

    View in: PubMed

  • Ouyang Z, Altundal Y, Sajo E, Ngwa W. SU-E-T-279: Dose Enhancement Effect Due to Cerium Oxide Nanoparticles Employed as Radiation Protectants. Med Phys. 2015 Jun; 42(6):3397.

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  • Jermoumi M, Korideck H, Bhagwat M, Zygmanski P, Makrigiogos GM, Berbeco RI, Cormack RC, Ngwa W. Comprehensive quality assurance phantom for the small animal radiation research platform (SARRP). Phys Med. 2015 Jul; 31(5):529-35.

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  • Ngwa WF, Teboh R. Radiotherapy is an appropriate treatment to consider for patients infected with the Ebola virus. Med Phys. 2015 Mar; 42(3):1149.

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  • Ngwa W, Sajo E, Ngoma T, Bortfeld T, Gierga D, White KB, Akinwande B, Enwerem-Bromson MM, Teboh Forbang R, Winningham TA, Court LE, Odedina FT, Wu R, Makrigiorgos M, Nguyen PL. Potential for information and communication technologies to catalyze global collaborations in radiation oncology. Int J Radiat Oncol Biol Phys. 2015 Feb 1; 91(2):444-7.

    View in: PubMed

  • Altundal Y, Cifter G, Detappe A, Sajo E, Tsiamas P, Zygmanski P, Berbeco R, Cormack RA, Makrigiorgos M, Ngwa W. New potential for enhancing concomitant chemoradiotherapy with FDA approved concentrations of cisplatin via the photoelectric effect. Phys Med. 2015 Feb; 31(1):25-30.

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  • Sinha N, Cifter G, Sajo E, Kumar R, Sridhar S, Nguyen PL, Cormack RA, Makrigiorgos GM, Ngwa W. Brachytherapy application with in situ dose painting administered by gold nanoparticle eluters. Int J Radiat Oncol Biol Phys. 2015 Feb 1; 91(2):385-92.

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  • Ngwa W, Kumar R, Sridhar S, Korideck H, Zygmanski P, Cormack RA, Berbeco R, Makrigiorgos GM. Targeted radiotherapy with gold nanoparticles: current status and future perspectives. Nanomedicine (Lond). 2014 May; 9(7):1063-82.

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  • Wack L, Ngwa W, Tryggestad E, Tsiamas P, Berbeco R, Ng SK, Hesser J, Zygmanski P. High throughput film dosimetry in homogeneous and heterogeneous media for a small animal irradiator. Phys Med. 2014 Feb; 30(1):36-46.

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  • Detappe A, Tsiamas P, Ngwa W, Zygmanski P, Makrigiorgos M, Berbeco R. The effect of flattening filter free delivery on endothelial dose enhancement with gold nanoparticles. Med Phys. 2013 Mar; 40(3):031706.

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  • Zygmanski P, Hoegele W, Tsiamas P, Cifter F, Ngwa W, Berbeco R, Makrigiorgos M, Sajo E. A stochastic model of cell survival for high-Z nanoparticle radiotherapy. Med Phys. 2013 Feb; 40(2):024102.

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  • Tsiamas P, Liu B, Cifter F, Ngwa WF, Berbeco RI, Kappas C, Theodorou K, Marcus K, Makrigiorgos MG, Sajo E, Zygmanski P. Impact of beam quality on megavoltage radiotherapy treatment techniques utilizing gold nanoparticles for dose enhancement. Phys Med Biol. 2013 Feb 7; 58(3):451-64.

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  • Berbeco RI, Korideck H, Ngwa W, Kumar R, Patel J, Sridhar S, Johnson S, Price BD, Kimmelman A, Makrigiorgos GM. DNA damage enhancement from gold nanoparticles for clinical MV photon beams. Radiat Res. 2012 Dec; 178(6):604-8.

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  • Ngwa W, Korideck H, Kassis AI, Kumar R, Sridhar S, Makrigiorgos GM, Cormack RA. In vitro radiosensitization by gold nanoparticles during continuous low-dose-rate gamma irradiation with I-125 brachytherapy seeds. Nanomedicine. 2013 Jan; 9(1):25-7.

    View in: PubMed

  • Ngwa W, Makrigiorgos GM, Berbeco RI. Gold nanoparticle enhancement of stereotactic radiosurgery for neovascular age-related macular degeneration. Phys Med Biol. 2012 Oct 21; 57(20):6371-80.

    View in: PubMed

  • Ngwa W, Tsiamas P, Zygmanski P, Makrigiorgos GM, Berbeco RI. A multipurpose quality assurance phantom for the small animal radiation research platform (SARRP). Phys Med Biol. 2012 May 7; 57(9):2575-86.

    View in: PubMed

  • Ngwa W, Makrigiorgos GM, Berbeco RI. Gold nanoparticle-aided brachytherapy with vascular dose painting: estimation of dose enhancement to the tumor endothelial cell nucleus. Med Phys. 2012 Jan; 39(1):392-8.

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  • Ngwa W, Korideck H, Chin LM, Makrigiorgos GM, Berbeco RI. MOSFET assessment of radiation dose delivered to mice using the Small Animal Radiation Research Platform (SARRP). Radiat Res. 2011 Dec; 176(6):816-20.

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  • Berbeco RI, Ngwa W, Makrigiorgos GM. Localized dose enhancement to tumor blood vessel endothelial cells via megavoltage X-rays and targeted gold nanoparticles: new potential for external beam radiotherapy. Int J Radiat Oncol Biol Phys. 2011 Sep 1; 81(1):270-6.

    View in: PubMed

  • Ngwa W, Makrigiorgos GM, Berbeco RI. Applying gold nanoparticles as tumor-vascular disrupting agents during brachytherapy: estimation of endothelial dose enhancement. Phys Med Biol. 2010 Nov 7; 55(21):6533-48.

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  • Waghorn BJ, Shah AP, Ngwa W, Meeks SL, Moore JA, Siebers JV, Langen KM. A computational method for estimating the dosimetric effect of intra-fraction motion on step-and-shoot IMRT and compensator plans. Phys Med Biol. 2010 Jul 21; 55(14):4187-202.

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  • Kamanyi AE, Grill W, Ngwa W, Luo W. Advances in phase-sensitive acoustic microscopy studies of polymer blend films: annealing effects and micro-elastic characterization of PS/PMMA blends. J Microsc. 2010 May; 238(2):134-44.

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  • Ngwa W, Meeks SL, Kupelian PA, Schnarr E, Langen KM. Validation of a computational method for assessing the impact of intra-fraction motion on helical tomotherapy plans. Phys Med Biol. 2009 Nov 7; 54(21):6611-21.

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  • Langen KM, Lu W, Ngwa W, Willoughby TR, Chauhan B, Meeks SL, Kupelian PA, Olivera G. Correlation between dosimetric effect and intrafraction motion during prostate treatments delivered with helical tomotherapy. Phys Med Biol. 2008 Dec 21; 53(24):7073-86.

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  • Kamanyi A, Ngwa W, Betz T, Wannemacher R, Grill W. Combined phase-sensitive acoustic microscopy and confocal laser scanning microscopy. Ultrasonics. 2006 Dec 22; 44 Suppl 1:e1295-300.

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  • Ngwa W, Luo W, Kamanyi A, Fomba KW, Grill W. Characterization of polymer thin films by phase-sensitive acoustic microscopy and atomic force microscopy: a comparative review. J Microsc. 2005 Jun; 218(Pt 3):208-18.

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  • Laforsch C, Ngwa W, Grill W, Tollrian R. An acoustic microscopy technique reveals hidden morphological defenses in Daphnia. Proc Natl Acad Sci U S A. 2004 Nov 9; 101(45):15911-4.

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  • Ngwa W, Wannemacher R, Grill W. Phase-sensitive acoustic microscopy of polymer thin films. Ultrasonics. 2004 Apr; 42(1-9):983-7.

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  • Schiller J, Naji L, Trampel R, Ngwa W, Knauss R, Arnold K. Pulsed-field gradient-nuclear magnetic resonance (PFG NMR) to measure the diffusion of ions and polymers in cartilage: applications in joint diseases. Methods Mol Med. 2004; 101:287-302.

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  • Ngwa W, Geier O, Stallmach F, Naji L, Schiller J, Arnold K. Cation diffusion in cartilage measured by pulsed field gradient NMR. Eur Biophys J. 2002 Mar; 31(1):73-80.

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  • Najl L, Trampel R, Ngwa W, Knauss R, Schiller J, Arnold K. [Study of diffusion in cartilage by the “PFG” (pulsed-field gradient NMR) technique]. Z Med Phys. 2001; 11(3):179-86.

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