Adsorption of l-histidine over mesoporous carbon molecular sieves

Vinu, Ajayan; Hossain, Kazi Zakir; Kumar, Gaurav; Ariga, Katsuhiko

doi:10.1016/j.carbon.2005.08.004

Cited by 169 publications

(99 citation statements)

References 24 publications

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“…These materials have high surface areas, narrow pore size distribution, controlled pore volumes and welldefined surface properties (Kresge et al 1992;Vinu et al 2003;Vinu et al 2004;Zhao et al 1998;Gao et al 2007) which make them applicable in adsorption process of biomolecules such as amino acids. The adsorption of L-histidine onto porous materials such as SBA-15, CMK-3 and activated carbon has been carried out by Vinu et al (Vinu et al 2006). It has been found in this study that the highest amount of L-histidine was adsorbed on CMK-3 near the isoelectric point of the amino acid.…”

Section: Introductionmentioning

confidence: 62%

“…A similar relation was observed for C SBA-15 and C SBA-16 samples. Vinu et al (Vinu et al 2006) have proposed the following interpretation of this behaviour. When the concentration of buffer increases, the repulsive electrostatic interactions between the phosphate ions increase, thereby increasing the interaction between the amino acid molecule and can then operate toward aggregation.…”

Section: Amino Acids Adsorptionmentioning

confidence: 90%

“…They are also applied as building blocks for the production of pharmaceutical and agrochemical compounds (O'Connor et al 2006). In order to make amino acids useful in the above mentioned fields, they should be placed on the surface of solid materials (Vinu et al 2006), therefore they should be adsorbed. Additionally, the investigation on the adsorption of amino acids can provide important information on separation and purification of these biomolecules (Munsch et al 2001).…”

Section: Introductionmentioning

confidence: 99%

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Comparison of ordered mesoporous materials sorption properties towards amino acids

2013

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The adsorption of amino acids such as L-phenylalanine and L-histidine was carried out on a series of mesoporous carbons obtained with the use ordered silicas KIT-6, SBA-16, SBA-15 as templates and furfuryl alcohol as carbon precursor. Small angle XRD analysis confirmed the ordered mesoporous structures of all materials obtained. They were also characterised by well-developed surface areas and high pore volumes. Adsorption behaviour of amino acids on ordered mesoporous carbons was investigated in potassium phosphate buffer solutions with adjustable L-phenylalanine and L-histidine concentration, ion strength, and pH. The highest sorption capacity towards the amino acids were observed at pH close to the isoelectric point of L-phenylalanine (pI = 5.48) and L-histidine (pI = 7.59). Electrostatic, hydrophobic and steric interactions had very strong effect on the adsorption of amino acids on mesoporous carbons. The amount of L-phenylalanine and L-histidine adsorbed decreased in the following sequence: C [ C SBA-16 [ C SBA-15 that was strongly related to their structure, surface areas and average pore diameters.

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Section: Introductionmentioning

confidence: 62%

Section: Amino Acids Adsorptionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

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Comparison of ordered mesoporous materials sorption properties towards amino acids

2013

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“…In addition to compact packing nature of the proteins at the isoelectric point, effective hydrophobic interaction between carbon surface and neutral proteins may accelerate adsorption process. Vinu and coworkers also extended the adsorption researches of biomaterials to smaller molecules such as vitamins [197,198] and amino acids [199,200], where superiority of the mesoporous carbon in these adsorption processes as compared to mesoporous silica and activated non-structure ARTICLE IN PRESS carbon is demonstrated. Because of large pore volume of the carbon nanocage, it would show superior capability in the biomaterials adsorption [98].…”

Section: Biomaterial-hybridized Mesoporous Materialsmentioning

confidence: 99%

New families of mesoporous materials

Vinu

Mori

Ariga

2006

Science and Technology of Advanced Materials

168

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Mesoporous materials have been paid much attention in both scientific researches and practical applications. In this review, we focus on recent developments on preparation and functionalization of new families of mesoporous materials, especially non-siliceous mesoporous materials invented in our research group. Replica synthesis is known as the method to synthesize mesoporous materials composed of various elements using originally prepared mesoporous replica. This strategy has been applied for the syntheses of novel mesoporous materials such as carbon nanocage and mesoporous carbon nitride. Carbon nanocage has a cage-type structure with huge surface area and pore volume, which exhibits superior capabilities for biomolecular adsorption. Mesoporous carbon nitride was synthesized, for first time, by using mixed material source of carbon and nitrogen simultaneously. As a totally new strategy for synthesis of mesoporous materials, the elemental substitution method has been recently proposed by us. Direct substitution of component elements in original mesoporous materials, with maintaining structural regularity, provided novel mesoporous materials. According to this synthetic strategy, mesoporous boron nitride and mesoporous boron carbon nitride have been successfully prepared, for first time. In addition to these material inventions, hybridization of high functional materials, such as biomaterials, to mesoporous structure has been also developed. Especially, immobilization of proteins in mesopores was systematically researched, and preparation of peptidehybridized mesoporous silica was demonstrated. These new families of mesoporous materials introduced in this review would have high potentials in future practical applications in wide ranges from electronics and photonics to environmental and medical uses. r

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“…[8] In recent years, highly ordered mesoporous carbons (OMCs) with large surface area, high and tunable mesoporosity, narrow pore-size distribution, high electrical conductivity and hydrophobic surface are particularly promising as EDLC electrodes for fundamental research and for practical applications. [9] OMCs have attracted much attention for wide application in methane and hydrogen storage, [10] as absorbents, [11] catalyst supports, [12,13] and in EDLC applications. [14] It has been demonstrated by many research groups that OMCs have much better electrochemical performance than conventional high-surface activated carbon (AC) at high current densities both in aqueous [15] and nonaqueous electrolytes.…”

Section: Introductionmentioning

confidence: 99%

Influence of the OMCs pore structures on the capacitive performances of supercapacitor

Nong

Wang

2009

Asia-Pacific J Chem Eng

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In the present study, two mesoporous carbons OMC-KIT-6 and OMC-SBA-16 were nanocasted using mesoporous silica of KIT-6 and SBA-16 as templates and furfuryl alcohol as carbon precursor. Transmission electron microscopy (TEM) and X-ray diffraction (XRD) characterizations confirmed that the resultant samples are mesoporous carbons, and the as-prepared OMC-KIT-6 has an Ia3d ordered structure, whereas OMC-SBA-16 belongs to Im3m space group. The surface area and the average pore size are (1658 m 2 g −1 and 3.4 nm) for OMC-KIT-6 and (1638 m 2 g −1 and 2.9 nm) for OMC-SBA-16, respectively. The results of cyclic voltammograms and galvanostatic charge-discharge tests show that these two mesoporous carbons have excellent capacitive performances. But the difference of capacitive behavior between OMC-KIT-6 and OMC-SBA-16 may be a result of the difference of pore geometries of these two carbons. In order to find out the function of mesopore in a supercapacitor, we compared the capacitive properties of mesoporous and microporous carbons; the experiment results indicated that these two kinds of carbon exhibit nearly ideal capacitive behavior at low scan rate. When the scan rate is enhanced up to 50 mV s −1 the performance of mesoporous carbon is more stable than microporous carbon. This outcome demonstrated that mesopore plays an important role in forming double layers in the electrode materials. 

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Adsorption of l-histidine over mesoporous carbon molecular sieves

Cited by 169 publications

References 24 publications

Comparison of ordered mesoporous materials sorption properties towards amino acids

Comparison of ordered mesoporous materials sorption properties towards amino acids

New families of mesoporous materials

Influence of the OMCs pore structures on the capacitive performances of supercapacitor

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