Abstract: A highly sensitive pH sensor based on a tapered single-mode optical fiber (SMF) working at the dispersion turning point (DTP) is proposed, with calcium alginate hydrogel coated on its ...

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Abstract: High-resolution mapping of pH can provide vital physiological information in environmental and biomedical applications. In this work, we develop active-matrix potentiometric sensors that ...

Homecoming has ended after a tour of three regions to honour and equip schools whose teams excelled in this year’s ...

The 2025 Ghana Science & Tech Explorer Challenge Prize (GSTEP) has presented each winning school with a comprehensive suite ...