Browsing by Author "Silva,H. I. C. De"

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Evaluation of Justicia adhatoda Linn. extract-loaded layered double hydroxide nanohybrid for sunscreen applications
(Institute of Chemistry Ceylon, 2025-05) Gunaratne,W. A. S. B; Silva,H. I. C. De
Safety concerns regarding synthetic sunscreens have increased the demand for botanical alternatives rich in phytochemicals with natural photo-protectant properties. Layered double hydroxides (LDHs) offer biocompatibility, tunable composition, high anion- exchange capacity, and controlled release. This study focused on developing a plant extract-incorporated LDH nanohybrid and evaluating its photostability and antioxidant activity. Based on the UV blocking ability at UVA and UVB regions, J. adhatoda was selected.
Formulation of Psidium guajava Linn essential oil encapsulated solid lipid nanoparticles and evaluation of its anti-inflammatory and antioxidant activity
(Institute of Chemistry Ceylon, 2025-05) Lakmali,M. G. C; Silva,H. I. C. De
Essential oils (EOs) possess significant therapeutic properties but are limited by volatility, instability, and poor bioavailability. This study aimed to encapsulate Psidium guajava Linn EO within solid lipid nanoparticles (SLNPs) to enhance its stability and biological efficacy.
α-Amylase Inhibitory Activity of Fractions Separated from The Seed Extract of Syzygium cumini (L.) Skeels
(Institute of Chemistry Ceylon, 2025-05) Fernando,T. T. L; Munasinghe,M. S. T; Silva,H. I. C. De
Diabetes mellitus (DM) ranks a world-wide metabolic disorder in which chronic hyperglycemia arises due to insulin dysfunction. Syzygium cumini, a plant with medicinal properties and a tradition of being used for diabetes in Sri Lanka, was then confirmed to have antidiabetic potential.