Adsorption/desorption study of proteins onto multi-walled carbon nanotubes and amino multi-walled carbon nanotubes surfaces as adsorbents

Enayatpour, Behdad; Rajabi, Mostafa; Yari, Mohammad; Mirkhan, S Mohammad Reza; Najafi, Fahimeh; Moradi, Omid; Bharti, Arvind K.; Agarwal, Shilpi; Gupta, Vinod Kumar

doi:10.1016/j.molliq.2017.02.013

Cited by 30 publications

(8 citation statements)

References 35 publications

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“…Protein properties such as isoelectric point (IEP), solubility, and its molecular weight affect its adsorption to the polymeric surface as well. Also, buffer solution properties such as its pH, ionic strength, and viscosity can affect the adsorption process …”

Section: Introductionmentioning

confidence: 99%

Protein–polymer interaction: Transfer loading at interfacial region of PES‐based membrane and BSA

Sadegh

Sahay

Soni

2019

J of Applied Polymer Sci

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The adsorption of proteins onto polymeric surfaces is encountered in many natural and industrial processes and is a prerequisite to their efficient identification, separation, and purification by methods such as chromatography, and filtration. Nevertheless, the exact nature of the adsorption mechanisms and interfacial interactions is not easy to identify for a given protein-polymer system. Here, we aim to document the adsorption mechanism of a protein-polymer system by investigating the adsorption as well as desorption phenomenon of a protein [bovine serum albumin (BSA)] from the polymeric surface [polyethersulfone (PES)]. The analyses performed to document the adsorption mechanism of the BSA-PES system include scanning electron microscope (SEM), attenuated total reflection-Fourier transform infrared (FTIR), contact angle, zeta potential, surface charge density measurement, and Derjaguin-Landau-Verwey-Overbeek (DLVO). Here, SEM and FTIR identified the physical and chemical properties of pure PES and PES-BSA membranes. The low water contact angle of the PES-BSA membrane confirms its applicability for tissue engineering applications. Further, the zeta potential, surface charge density measurement, and DLVO analyses were performed to document the adsorption mechanism. The adsorption of BSA particles on the PES surface was carried out for pH values that ranged from 4 to 10 for contact times that ranged from 1 to 3 days. A monotonic increase in the zeta potential of the PES-BSA system indicated considerable adsorption of BSA particles on the PES surface. Further, BSA adsorption was very strong for pH values greater than 4.7 which confirms to strong electrostatic interactions between BSA and PES. The strong electrostatic interaction is also collaborated by low desorption rate, which was only 22% for pH 10 after 3 days of contact.

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Section: Introductionmentioning

confidence: 99%

Protein–polymer interaction: Transfer loading at interfacial region of PES‐based membrane and BSA

Sadegh

Sahay

Soni

2019

J of Applied Polymer Sci

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“…41 Different studies have shown the adsorption ability of dyes on a large variety of non-conventional low-cost adsorbents, such as agricultural and industrial waste. [41][42][43][44][45][46][47][48][49][50][51][52][53] Nonetheless, in very few cases, for non-conventional adsorbents and low-cost adsorbents, is the adsorption capacity higher than for activated carbons and these adsorbents showed mixed results. So, to develop more efficient adsorbents with a higher capacity for regeneration, the study of nanotubes is an ongoing process.…”

Section: Introductionmentioning

confidence: 99%

Removal of dye molecules from aqueous solution by carbon nanotubes and carbon nanotube functional groups: critical review

2017

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“…Employing different concentrations of Mg-doped TiO 2 varying from 0.04 to 0.44 g L -1 , the effect of initial concentration of the pollutants varying from 10 to 50 mg L -1 and the initial concentration of oxidant such as potassium peroxodisulfate and hydrogen peroxide varying from 1 to 7 mM in pH range of 2.0-12.0 in the presence of UV light [36][37][38][39][40].…”

Section: Degradation Optimum Conditionsmentioning

confidence: 99%

Preparation of Mg-doped TiO2 nanoparticles for photocatalytic degradation of some organic pollutants

Giahi¹,

Pathania²,

Agarwal³

et al. 2019

Studia UBB Chemia

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In this study, the sol-gel method was used to prepare Mgdoped TiO2 nanoparticles from titanium tetraisopropoxide and magnesium sulfate as the dopant precursors. Mg-doped TiO2 shows the formation of anatase phase with polyhedral and spherical particles with an average size of 25-30 nm. X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy and photoluminescence were used to characterize the prepared material. The photocatalytic degradation performance of rhodamine B, nonylphenol ethoxylates, pseudoephedrine hydrochloride, and nicotine on Mg-doped TiO2 was studied under UV irradiation. The photocatalytic degradation shows that 98.92, 98.00, 98.00 and 97.95% of rhodamine B, nonylphenol ethoxylates, pseudoephedrine hydrochloride, and nicotine was decomposed by Mg-doped TiO2, respectively.

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Adsorption/desorption study of proteins onto multi-walled carbon nanotubes and amino multi-walled carbon nanotubes surfaces as adsorbents

Cited by 30 publications

References 35 publications

Protein–polymer interaction: Transfer loading at interfacial region of PES‐based membrane and BSA

Protein–polymer interaction: Transfer loading at interfacial region of PES‐based membrane and BSA

Removal of dye molecules from aqueous solution by carbon nanotubes and carbon nanotube functional groups: critical review

Preparation of Mg-doped TiO2 nanoparticles for photocatalytic degradation of some organic pollutants

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