Characteristics of co-doped device with hole and electron transport material

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We demonstrated green organic lighte-emittin diodes (OLEDs) improved by co-doped using hole transport material, N′-bis-(1-naphyl)-N,N′-diphenyl-1,1′-biphenyl-4,4′-diamine (NPB) and electron transport material, bis(2-methyl-8-quninolinato)-4-phenylphenolate aluminum (Balq), into emitting layer. The co-doped materials impove charge blance by injecting hole [...]

Biological influence of nanofibrous hydroxyapatite-polycaprolactone membrane on human periodontal ligament cell

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This study was performed to evaluate the effect of hydroxyapatite-coated nanofibrous polycaprolactone membrane on proliferation and differentiation of periodontal ligament cell which is necessary for periodontal regeneration. Hydroxyapatite-coated nanofibrous polycaprolactone membrane was fabricated through electrospinning [...]