Comparison of gallium nitride derived light-emitting diodes and compact fluorescent lamp phototherapy units in management of neonatal hyperbilirubinemia

Randomized controlled trial of compact fluorescent lamp versus standard phototherapy for the treatment of neonatal hyperbilirubinemia.

BACKGROUND Special blue tube lights of standard length are used in most neonatal units to deliver phototherapy. Of late, special blue compact fluorescent lamp phototherapy equipments have been introduced in India, which are claimed to be better than standard tube lights. AIM To compare special blue compact fluorescent lamp (CFL) phototherapy with special blue standard-length tube lights (STL)...

History of Gallium-Nitride-Based Light-Emitting Diodes for Illumination

| The history of development for gallium–nitridebased light-emitting diodes (LEDs) is reviewed. We identify two broad developments in GaN-based LED technology: first, the key breakthroughs that enabled the development of GaN-based devices on foreign substrates like sapphire (first-generation LEDs), and, second, a new wave of devices benefiting from developments in GaN substrate manufacturing, w...

Gallium nitride nanowire based nanogenerators and light-emitting diodes.

Single-crystal n-type GaN nanowires have been grown epitaxially on a Mg-doped p-type GaN substrate. Piezoelectric nanognerators based on GaN nanowires are investigated by conductive AFM, and the results showed an output power density of nearly 12.5 mW/m(2). Luminous LED modules based on n-GaN nanowires/p-GaN substrate have been fabricated. CCD images of the lighted LED and the corresponding ele...

Laser Micromachining for Gallium Nitride Based Light-Emitting Diodes

Comparison of triple and double phototherapy in neonatal hyperbilirubinemia

Introduction: Icterus is the most common medical problem in neonates. Phototherapy is standard treatment of neonatal hyperbilirubinemia. This study aims to compare efficacy and length of hospitalization of double and triple phototherapy in term newborns with indirect hyperbilirubinemia. Methods: In a randomized clinical trial 40 healthy term newborns (gestational age>37 weeks) with weight≥250...