Effect of surface area enhancement on the adsorption of bovine serum albumin onto titanium dioxide

The equilibrium and the kinetics of BSA adsorption onto specific surface area changed TiO2 by heat treatment were studied. The TiO2 was treated at 100 and 200 °C for 24 h. The specific surface areas of TiO2 characterized by BET method were measured as 48.9 m2/g and 53.0 m2/g for 100 and 200 °C, respectively. The adsorption rate and the equilibrium experiments were carried out at pH 4 for 40 °C. The rate kinetics for the adsorption of BSA was best fitted with the pseudo-first-order kinetic model. The equilibrium process was described by the Langmuir and Freundlich isotherm models. The adsorption capacities (Q0) calculated from the Langmuir isotherm model were 40.6 and 44.4 mg/g for heat-treated TiO2 at 100 and 200 °C, respectively. The adsorption of BSA increased with increasing surface area of TiO2. The zeta potential values of the 100- and 200 °C-treated TiO2 were found as -2.57 mV and 0.39 mV, respectively, showing that the interaction between TiO2 with BSA increased with increasing temperature of heat treatment for TiO2. © 2009 Elsevier B.V. All rights reserved.

Dergi Adı Colloids and Surfaces B: Biointerfaces
Dergi Cilt Bilgisi 76
Dergi Sayısı 1
Sayfalar 265 - 271
Yayın Yılı 2010
Eser Adı
[dc.title]
Effect of surface area enhancement on the adsorption of bovine serum albumin onto titanium dioxide
Yazar
[dc.contributor.author]
Kopac T.
Yazar
[dc.contributor.author]
Bozgeyik K.
Yayın Yılı
[dc.date.issued]
2010
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
The equilibrium and the kinetics of BSA adsorption onto specific surface area changed TiO2 by heat treatment were studied. The TiO2 was treated at 100 and 200 °C for 24 h. The specific surface areas of TiO2 characterized by BET method were measured as 48.9 m2/g and 53.0 m2/g for 100 and 200 °C, respectively. The adsorption rate and the equilibrium experiments were carried out at pH 4 for 40 °C. The rate kinetics for the adsorption of BSA was best fitted with the pseudo-first-order kinetic model. The equilibrium process was described by the Langmuir and Freundlich isotherm models. The adsorption capacities (Q0) calculated from the Langmuir isotherm model were 40.6 and 44.4 mg/g for heat-treated TiO2 at 100 and 200 °C, respectively. The adsorption of BSA increased with increasing surface area of TiO2. The zeta potential values of the 100- and 200 °C-treated TiO2 were found as -2.57 mV and 0.39 mV, respectively, showing that the interaction between TiO2 with BSA increased with increasing temperature of heat treatment for TiO2. © 2009 Elsevier B.V. All rights reserved.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Konu Başlıkları
[dc.subject]
Adsorption
Konu Başlıkları
[dc.subject]
Adsorption isotherms
Konu Başlıkları
[dc.subject]
Bovine serum albumin
Konu Başlıkları
[dc.subject]
Titanium dioxide
Konu Başlıkları
[dc.subject]
Zeta potential
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
ISSN
[dc.identifier.issn]
0927-7765
İlk Sayfa Sayısı
[dc.identifier.startpage]
265
Son Sayfa Sayısı
[dc.identifier.endpage]
271
Dergi Adı
[dc.relation.journal]
Colloids and Surfaces B: Biointerfaces
Dergi Sayısı
[dc.identifier.issue]
1
Dergi Cilt Bilgisi
[dc.identifier.volume]
76
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.1016/j.colsurfb.2009.11.002
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/5387
Görüntülenme Sayısı ( Şehir )
Görüntülenme Sayısı ( Ülke )
Görüntülenme Sayısı ( Zaman Dağılımı )
Görüntülenme
21
09.12.2022 tarihinden bu yana
İndirme
1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
13 Şubat 2024 20:25
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Tıklayınız
adsorption respectively surface equilibrium Langmuir isotherm increased increasing kinetics specific treatment heat-treated potential values °C-treated method showing interaction between temperature Elsevier rights reserved treated characterized experiments carried studied measured fitted pseudo-first-order kinetic process described changed
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