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Protein immobilization on glutaraldehyde activated nylon membranes- effects of the activation condition

Protein immobilization on glutaraldehyde activated nylon membranes- effects of the activation condition / Nur Hafizah Abd Halil
Protin yang bergerak ke atas membran nilon yang telah diaktifkan dengan glutaraldehyde telah dikaji dalam kajian ini. Pertama, membran nilon diaktifkan dengan glutaraldehyde dan kemudian protin akan melekat ke atasnya. Morfologi membran dicirikan dengan mengimbas mikroskopi electron (SEM), analisis FTIR dan analisis Termogravimetri (TGA) untuk memeriksa kehadiran glutaraldehyde. Kajian awal telah dijalankan untuk mengkaji kesan tiga faktor (masa untuk proses membran diaktifkan, pH dan kepekatan GA) ke atas protin yang melekat manakala sampel membran ditetapkan pada 16% berat polimer nilon dan 84% berat campuran pelarut dan bukan pelarut. Hasil daripada kajian itu, ia boleh dapati bahawa syarat GA-pengaktifan optimum adalah pada 40 minit masa untuk proses membran diaktifkan, pH 7.5 dan 1% berat bagi kepekatan GA. Sebagaimana faktor campuran (kepekatan polimer dan campuran pelarut dan bukan pelarut) dan faktor-faktor proses (masa untuk proses membrane diaktifkan dan pH) adalah saling berkaitan, oleh itu reka bentuk eksperimen (DoE) telah digunakan. Syarat-syarat GApengaktifan optimum diperoleh daripada metodologi reka bentuk campuran proses yang melintasi reka bentuk (DoE) pada 25% berat polimer, 75% berat campuran pelarut dan bukan perlarut, larutan GA pada pH 9.0 dan pada 70 min masa untuk proses membrane diaktifkan, dengan protin yang melekat diramalkan pada 2410.19 μg/cm3. Pengesahan eksperimen ini telah diajalankan pada keadaan optimum dan keputusan protin yang melekat ditemui pada 2411.57 μg/cm3 dengan sisihan piawai 0.057%. Hasil eksperimen menunjukkan sisihan piawai yang kecil yang bermaksud model boleh digunakan untuk meramalkan protin yang bergerak pada glutaraldehyde diaktifkan ke atas membran nilon. _______________________________________________________________________________________________________ Protein immobilization on glutaraldehyde (GA) activated nylon membranes has been studied in this work. Nylon membranes was first activated with GA and then immobilized with the protein. The morphology of the membranes was characterized by scanning electron microscopy (SEM), FTIR analysis and thermogravimetric analysis (TGA) to check the presence of glutaraldehyde. The preliminary study was carried out to investigate the effect of three factors (incubation time, pH and concentration of GA) on protein binding while the membrane sample is fixed to 16 wt% of nylon polymer and 84 wt% of mixture solvent and non-solvent. From the study, it can be found that the optimum condition of GA-activation which are incubation time is at 40 min, at pH 7.5 and 1 wt% of GA concentration. Since the mixture factors (concentration of polymer and mixture solvent and non-solvent) and process factors (incubation time and pH) were inter-related, therefore Design of Experiment (DoE) was applied. The optimum GA-activation conditions was obtained from a crossed mixture-process design methodology (Design of Experiment) at 25 wt% of nylon polymer, 75 wt% of mixture solvent and nonsolvent, GA solution at pH 9.0 and GA activation time of 70 min, with protein binding predicted at 2410.19 μg/cm3. The experimental validation was conducted at this optimum condition and the protein binding result was found at 2411.57 μg/cm3 with the standard deviation of 0.057%. The experimental result shown a small standard deviation which means the model can be used further to predict the protein that immobilized on glutaraldehyde activated nylon membranes.
Contributor(s):
Nur Hafizah Abd Halil - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875007301
Barcode : 00003107181
Language:
English
Subject Keywords:
Protein immobilization; nylon membranes; glutaraldehyde activated
First presented to the public:
6/1/2017
Original Publication Date:
4/30/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Chemical Engineering
Citation:
Extents:
Number of Pages - 100
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-04-30 11:25:04.52
Date Last Updated
2019-01-07 11:24:32.9118
Submitter:
Mohd Jasnizam Mohd Salleh

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