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Harnessing nanoparticles for COVID testing

KAUST · May 21

KAUST researchers are developing a streamlined COVID-19 diagnostic testing method using superparamagnetic nanoparticles (MNPs). The team, led by Assistant Professor Mo Li, aims to address reagent shortages and improve automation by creating an in-house extraction kit compatible with inactivated samples. Associate Professor Samir Hamdan identified a protocol for making silica-coated MNPs that survive inactivation reagents, enabling magnetic separation without centrifugation. Why it matters: This innovation could significantly increase testing capacity in Saudi Arabia and globally by reducing biosafety risks, reagent dependence, and manual processing.

Are Arabic Benchmarks Reliable? QIMMA's Quality-First Approach to LLM Evaluation

arXiv · Apr 3

QIMMA is introduced as a quality-assured Arabic LLM leaderboard that places systematic benchmark validation at its core. It employs a multi-model assessment pipeline combining automated LLM judgment with human review to identify and resolve quality issues in established Arabic benchmarks. The resulting evaluation suite comprises over 52,000 samples, predominantly grounded in native Arabic content, with transparent implementation via LightEval and EvalPlus. Why it matters: This initiative provides a more reliable and reproducible foundation for evaluating Arabic Large Language Models, addressing critical quality concerns in existing benchmarks.