Sumatera Institute of Technology

Sustainable PVA/gelatin nanofibers reinforced with tomato-peel-derived carbon quantum dots for enhanced optical and mechanical properties

Increased interest in sustainable and biodegradable materials has driven advances in nanotechnology. This study explores the fabrication of nanofibers using polyvinyl alcohol (PVA) integrated with carbon quantum dots (CQDs) obtained from tomato peel waste and gelatin to produce h...

Formation of electrosprayed PVP-GTE submicron particles: physicochemical characteristics and antioxidant activities

Abstract This research is focused on the optimation of green tea extract-loaded polyvinylpyrrolidone (PVP) submicron particles by electrospraying for enhanced delivery of antioxidants. The novelty lies in the explanation of the critical connection between process parameters, drug...

Flood Hazard Assessment using Rainfall Data (1995–2025) with a Hydrograph Approach and an Eco-Geomorphic Overview in Padang City, Indonesia

Abstract Padang City experiences recurrent flooding because intense rainfall, rapid runoff from eastern catchments, low-lying floodplains, and coastal–estuarine backwater effects interact across a developed watershed continuum. Existing assessments often examine rainfall, runoff...