Roles of nanostructures and carboxylic acid functionalization of ordered cubic mesoporous silicas in lysozyme immobilization

Deka, Juti Rani; Saikia, Diganta; Lai, Yan Shan; Tsai, Cheng Hsun; Chang, Wei; Kao, Hsien Ming

doi:10.1016/j.micromeso.2015.04.015

Cited by 31 publications

(9 citation statements)

References 57 publications

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“…These observations indicate a non-universality of ionic interactions that can be conducted at high concentrations in the presence of these salts. The strong physical adsorption of HA with dextranase has important industrial significance considering that the enzyme may not be easily leached from the carrier under the reaction conditions [ 25 , 26 ]. In contrast, dextranase could be desorbed in a solution of 50 mM sodium fluoride and sodium citrate ( Figure 3 b,d).…”

Section: Resultsmentioning

confidence: 99%

Immobilization of Dextranase on Nano-Hydroxyapatite as a Recyclable Catalyst

Ding¹,

Zhang²,

Wang³

et al. 2020

Materials

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The immobilization technology provides a potential pathway for enzyme recycling. Here, we evaluated the potential of using dextranase immobilized onto hydroxyapatite nanoparticles as a promising inorganic material. The optimal immobilization temperature, reaction time, and pH were determined to be 25 °C, 120 min, and pH 5, respectively. Dextranase could be loaded at 359.7 U/g. The immobilized dextranase was characterized by field emission gun-scanning electron microscope (FEG-SEM), X-ray diffraction (XRD), and Fourier-transformed infrared spectroscopy (FT-IR). The hydrolysis capacity of the immobilized enzyme was maintained at 71% at the 30th time of use. According to the constant temperature acceleration experiment, it was estimated that the immobilized dextranase could be stored for 99 days at 20 °C, indicating that the immobilized enzyme had good storage properties. Sodium chloride and sodium acetic did not desorb the immobilized dextranase. In contrast, dextranase was desorbed by sodium fluoride and sodium citrate. The hydrolysates were 79% oligosaccharides. The immobilized dextranase could significantly and thoroughly remove the dental plaque biofilm. Thus, immobilized dextranase has broad potential application in diverse fields in the future.

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Section: Resultsmentioning

confidence: 99%

Immobilization of Dextranase on Nano-Hydroxyapatite as a Recyclable Catalyst

Ding¹,

Zhang²,

Wang³

et al. 2020

Materials

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“…To date, researchers have been focusing on the development of efficient adsorbents for the immobilization of protein, as there is a crucial need for the fruitful implementation of its applications in different areas. The selection of an appropriate adsorbent for the adsorption of protein depends on several factors, including surface area and large pore sizes with a volume ratio that can be placed on proteins and enzymes with ease (Han et al 2007 ; He and Shi 2011 ; Hartmann and Kostrov 2013 ; Mohammad 2013 ; Gascón et al 2014 ; Masuda et al 2014 ; Deka et al 2015 ; Tu et al 2016 ). Numerous categories of mesoporous silica substances including MCM-41 (Salis et al 2009 ), SBA-15 (Washmon-Kriel et al 2000 ), MCF and FMS (Kim et al 2005 ) have been effectively used for the immobilization of different substances, e.g.…”

Section: Protein Recovery By Different Approachesmentioning

confidence: 99%

Protein recovery as a resource from waste specifically via membrane technology—from waste to wonder

Shahid

Srivastava

2021

Environ Sci Pollut Res

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Economic growth and the rapid increase in the world population has led to a greater need for natural resources, which in turn, has put pressure on said resources along with the environment. Water, food, and energy, among other resources, pose a huge challenge. Numerous essential resources, including organic substances and valuable nutrients, can be found in wastewater, and these could be recovered with efficient technologies. Protein recovery from waste streams can provide an alternative resource that could be utilized as animal feed. Membrane separation, adsorption, and microbe-assisted protein recovery have been proposed as technologies that could be used for the aforementioned protein recovery. This present study focuses on the applicability of different technologies for protein recovery from different wastewaters. Membrane technology has been proven to be efficient for the effective concentration of proteins from waste sources. The main emphasis of the present short communication is to explore the possible strategies that could be utilized to recover or restore proteins from different wastewater sources. The presented study emphasizes the applicability of the recovery of proteins from various waste sources using membranes and the combination of the membrane process. Future research should focus on novel technologies that can help in the efficient extraction of these high-value compounds from wastes. Lastly, this short communication will evaluate the possibility of integrating membrane technology. This study will discuss the important proteins present in different industrial waste streams, such as those of potatoes, poultry, dairy, seafood and alfalfa, and the possible state of the art technologies for the recovery of these valuable proteins from the wastewater. Graphical abstract

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“…It remains a challenge to synthesize MSNs with cubic mesostructures and desired organic functionality on the mesopore surface. In our previous work, we successfully synthesized carboxylic acid functionalized FDU‐12‐type MSNs with large pores . Herein, we describe a one‐pot procedure for the synthesis of SBA‐1 MSNs with interconnected cage‐type mesopores functionalized with carboxylic acid groups under basic conditions.…”

Section: Introductionmentioning

confidence: 99%

“…In our previousw ork, we successfully synthesized carboxylic acid functionalizedF DU-12type MSNs with largep ores. [48] Herein, we describe ao ne-pot procedure for the synthesis of SBA-1 MSNs with interconnected cage-type mesopores functionalized with carboxylic acid groups under basic conditions. The ÀCOOH-functionalized SBA-1 nanoparticles can be further modified with amino groups by means of post-grafting to form bifunctional SBA-1M SNs.F or comparison purposes,t he counterparts, that is, pure silica SBA-1 MSNs and those with either carboxylic or amino functional groupsw ere also prepared to evaluate their dye-adsorption behaviors.I nt his work, these materials were used as adsorbentsf or the removal of variousc ationic and anionic dyes, and selectivea dsorptiono fadye from the mix-ture of two different dyes.…”

Section: Introductionmentioning

confidence: 99%

Bifunctional Cage‐Type Cubic Mesoporous Silica SBA‐1 Nanoparticles for Selective Adsorption of Dyes

Lin

Deka

et al. 2017

Chemistry An Asian Journal

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Bifunctional SBA-1 mesoporous silica nanoparticles (MSNs) with carboxylic acid and amino groups (denoted as CNS-10-10) have been successfully synthesized, characterized, and employed as adsorbents for dye removal. Adsorbent CNS-10-10 shows high affinity towards cationic and anionic dyes in a wide pH range, and exhibits selective dye removal of a two-dye mixture system of cationic methylene blue and anionic eosin Y. By changing the pH of the medium, the selectivity of the adsorption behavior can be easily modulated. For comparison purposes, the counterparts, that is, pure silica SBA-1 MSNs (CS-0) and those with either carboxylic acid or amino functional groups (denoted as CS-10 and NS-10, respectively) were also prepared to evaluate their dye-adsorption behaviors. As revealed by the zeta-potential measurements, the electrostatic interaction between the adsorbent surface and the dye molecule plays an important role in the adsorption mechanism. Adsorbent CNS-10-10 can be easily regenerated and reused, and maintains its adsorption efficiency up to 80 % after four cycles.

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Roles of nanostructures and carboxylic acid functionalization of ordered cubic mesoporous silicas in lysozyme immobilization

Cited by 31 publications

References 57 publications

Immobilization of Dextranase on Nano-Hydroxyapatite as a Recyclable Catalyst

Immobilization of Dextranase on Nano-Hydroxyapatite as a Recyclable Catalyst

Protein recovery as a resource from waste specifically via membrane technology—from waste to wonder

Bifunctional Cage‐Type Cubic Mesoporous Silica SBA‐1 Nanoparticles for Selective Adsorption of Dyes

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