Review of unique ophthalmic formulations in Vaidya Manorama: A traditional Kerala Ayurveda literature.

Vaidya Manorama is a folklore Kerala Ayurveda literature that encompasses time- tested low-budget formulations that can be prepared from easily available resources. Ayurveda Ophthalmology has been described in Chapter twenty-eight of the literature. Many unique formulations like eating firefly (khadyota), preparing ghee from fresh-water shellfish (tadaka-shuktika), Kadali phala (a special type of banana) bidalaka, dropping of juice of palasha (Butea monosperma) into eyes for various clinical conditions are described.

Reversible adsorption and desorption of PFAS on inexpensive graphite adsorbents alternating electric field.

Per- and polyfluoroalkyl substances (PFAS) have been extensively utilized in practical applications that include surfactants, lubricants, and firefighting foams due to their thermal stability and chemical inertness. Recent studies have revealed that PFAS were detected in groundwater and even drinking water systems which can cause severe environmental and health issues. While adsorbents with a large specific surface area have demonstrated effective removal of PFAS from water, their capability in desorbing the retained PFAS has been often neglected despite its critical role in regeneration for reuse.