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Anuscheh Nawaz Research Scientist/Engineer - Principal anuscheh@apl.uw.edu Phone 206-685-4198 |
Education
M.S. Aerospace Engineering, University of Stuttgart (Stuttgart, Germany), 2003
Ph.D. Aerospace Engineering, Institute of Space Systems, University of Stuttgart (Stuttgart, Germany), 2009
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Publications |
2000-present and while at APL-UW |
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Chemically welded, capillary-printed ion-selective membranes for durable solid-state chloride sensors in dynamic marine environments Taylor, Z., S. Soelberg, C. Lee, E. Firth, J. Kucewicz, M. Steele, A. Nawaz, and J.-H. Chung, "Chemically welded, capillary-printed ion-selective membranes for durable solid-state chloride sensors in dynamic marine environments," Adv. Sens. Res., 5, doi:10.1002/adsr.70210, 2026. |
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22 Sep 2026
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Salinity is a critical environmental parameter governing ocean circulation, biogeochemical processes, and ecosystem health, yet existing conductivity-based sensors remain costly and sensitive to variations in ionic composition. Here, we present a low-cost, scalable potentiometric chloride (Cl–)-sensing platform for salinity monitoring in dynamic marine environments. The system integrates a chemically welded ion-selective membrane (ISM) fabricated via capillary-bridge printing using controlled meniscus deposition and a miniaturized Ag/AgCl reference electrode. This printing process is modeled as a function of contact angle, tip speed, and viscosity, enabling precise control of membrane thickness and interfacial bonding. The meniscus-driven deposition is coupled with polymer–substrate interpenetration, ensuring strong adhesion and structural uniformity. The resulting ISM suppresses the formation of an interfacial water layer and exhibits enhanced resistance to delamination under prolonged aqueous exposure. The Cl–-selective electrodes exhibit a stable response at environmentally relevant concentrations, with low variability and reduced drift, while the custom reference electrode achieves stable performance with minimal concentration dependence. Ocean deployment demonstrates robust performance under strong salinity gradients and tidal dynamics. Differences between Cl–-derived and conductivity-derived salinity measurements are analyzed in relation to ionic composition, demonstrating the complementary roles of selective and non-selective sensing. |
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Ecobuoys for scalable oceanography Nawaz, A., M. Steele, R. Branch, D. Burnett, K. Liao, M. Parker, and E. Roumeli, "Ecobuoys for scalable oceanography," Mar. Technol. Soc. J., 59, 36-50, doi:10.4031/MTSJ.59.1.8, 2025. |
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1 Dec 2025
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An approach to scalable surface-drifting buoys is needed to enable the high spatial and temporal resolution of oceanographic data that the science and meteorological communities are asking for. With the number of active buoys predicted to increase by a factor of 100 or more, the impact on the environment becomes even more important. Here, we present a pathway to a scalable and sustainable generation of buoys. We identify the main criteria to be used when developing such buoys to be low cost, with reliable data and neutral or even positive environmental impact. For each buoy subsystem — hull, electronics, energy generation and storage, sensors, and communication system — cutting-edge technological solutions are presented, many of them from emerging research in marine or other disciplines. We then assess the potential solutions against the design criteria and plot a path toward small, environmentally friendly, low-cost, and low-power buoys. |
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Report of the Resident AUV Workshop, 9–11 May 2018. Delaney, J.B., D.A. Manalang, A. Marburg, A. Nawaz, and K. Daly, "Report of the Resident AUV Workshop, 9–11 May 2018." Technical Report APL-UW TR 1901, Applied Physics Laboratory, University of Washington, Seattle, 84 pp. |
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27 Mar 2020
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Workshop participants divided into focus groups to consider resident autonomous undersea vehicle (R-AUV) use cases related to these four application areas: mid-ocean ridges and the overlying water column; gas hydrates and coastal oceans; polar, under-ice, and off-planet oceans; and maintenance and operation of installations. |
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In The News
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How can we measure gases dissolved in seawater? futurum Nitrous oxide (N2O) is a greenhouse gas that is 300 times more powerful than carbon dioxide. Dr. Anuscheh Nawaz and her team are developing a technique to measure the concentration of dissolved N2O in our oceans directly and more efficiently. |
7 Mar 2023
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