Sorption and Desorption of PVA-Pyrene Chains in and out of Agarose Gel
Küçük Resim Yok
Tarih
2012
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer/Plenum Publishers
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In situ steady-state fluorescence (SSF) measurement technique was applied to investigation of pyrene labeled Poly(vinyl alcohol) (PVA-Py) molecules diffusion in and out of agarose gels. Gel samples with four different concentration of agarose were prepared. PVA-Py was synthesized by click chemistry method and dissolved in water to use in diffusion experiments. The results were analyzed by using Fickian type diffusion model, and it was found that sorption and desorption processes of PVA-Py molecules in and out of agarose gel have two distinct regions for short and long diffusion times. Sorption and desorption coefficients were measured and it was seen that the diffusion rates were much larger at short times and at lower agarose concentrations.
Açıklama
Anahtar Kelimeler
Agarose Gel, Diffusion, Fluorescence, Poly(Vinyl Alcohol), Pyrene, Gelation Mechanism, Kappa-Carrageenan, Phase-Transitions, Sol-Gel, Diffusion, Hydrogels, Conformation, Hysteresis, Helix, Terms
Kaynak
Journal Of Fluorescence
WoS Q Değeri
Q3
Scopus Q Değeri
Q1
Cilt
22
Sayı
4
