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Chitosan adsorption on nanofibrillated cellulose with different aldehyde content and interaction with phosphate buffered saline    
Yazarlar
Sedat Ondaral
Karadeniz Teknik Üniversitesi, Türkiye
Elif Celik
Orcun Caglar Kurtuluş
Doç. Dr. Elif AŞIKUZUN TOKEŞER Doç. Dr. Elif AŞIKUZUN TOKEŞER
Kastamonu Üniversitesi, Türkiye
Ismail Yakın
Özet
The chitosan adsorption on films prepared using nanofibrillated cellulose (NFC) with different content of aldehyde group was studied by means of Quartz Crystal Microbalance with Dissipation (QCM-D). Results showed that frequency change (Δf) was higher when the chitosan adsorbed on NFC film consisting more aldehyde group indicating the higher adsorption. The (Δf) and dissipation (ΔD) factors completely changed during adsorption of chitosan pre-treated with acetic acid: Δf increased and ΔD decreased, oppositely to un-treated chitosan adsorption. After acid treatment, molecular weight and crystallinity index of chitosan decreased addition to change in chemical structure. It was found that more phosphate buffered saline (PBS), as a model liquid for wound exudate, adsorbed to acid treated chitosan-NFC film, especially to film having more aldehyde groups. Comparing with bare NFC film, chitosan-NFC films adsorbed less PBS because chitosan crosslinked the NFC network and blocked the functional groups of NFC and thus, preventing swelling film.
Anahtar Kelimeler
Aldehyde content | Chitosan | Nanofibrillated cellulose | PBS | QCM-D
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Carbohydrate Polymers
Dergi ISSN 0144-8617
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 04-2018
Cilt No 186
Sayı 1
Sayfalar 192 / 199
Doi Numarası 10.1016/j.carbpol.2017.12.028