ReviewPublished 5 October 2026Recent advances in dielectric and two-dimensional material-based surface plasmon resonance biosensors for ultrasensitive refractive index sensing and diverse applicationsM. Jagadeeswar Goud · Yesudasu Vasimalla · Bhishma Karki · Santosh KumarAdvanced Optical Technologiesdoi 10.3389/aot.2026.1954938
EditorialPublished 17 July 2026Editorial: Advances in optical methods for biological sample characterizationEden Morales-Narváez · Remy Avila · Pablo Loza-AlvarezFrontiers in Photonicsdoi 10.3389/fphot.2026.1917795
Original ResearchPublished 2 July 2026Cationic metal detection using an Al–Al 2 O 3 nanoengineered SPR sensorTalia Tene · Paulina Elizabeth Valverde Aguirre · Geoconda Marisela Velasco Castelo · Melvin Arias Polanco · Lala Gahramanli · Lorenzo S. Caputi · Salvatore Straface · Cristian Vacacela GomezFrontiers in Nanotechnologydoi 10.3389/fnano.2026.1786421
