Abstract：
:Cobalt ferrite nanoparticles (CF), titanate nanotubes (T), alginate (G) and their nanocomposite microparticles (CF/G and T/G) were prepared and used for efficient removal of Cu2+, Fe3+ and As3+ ions from water. The nanocomposites were characterized using field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), FTIR and vibrating sample magnetometer (VSM). In addition, the effects of pH, contact time, adsorbent weight and heavy metal ion concentration on the removal efficiency were investigated. Our results revealed a successful preparation of the nanocomposite particles. The optimized batch experiment conditions were found to be pH of 6.5, contact time of 2h and adsorbent weight of 0.15g. The removal efficiencies for Cu2+ using G, CF, T, CF/G and T/G were found to be 91%, 100%, 99.9%, 95% and 98%, respectively. While that of Fe3+ removal was 60%, 100%, 100%, 60% and 82%, respectively. Efficient removal of As3+ ions was also attained (98% upon using T nanoadsorbents). The current study demonstrated that the developed nanomaterials (CF and T) and their corresponding alginate-based nanocomposite microparticles could be further tailored and used as efficient adsorbents for the uptake of different heavy metal ions from wastewater.
journal_name
Int J Biol Macromoljournal_title
International journal of biological macromoleculesauthors
Esmat M,Farghali AA,Khedr MH,El-Sherbiny IMdoi
10.1016/j.ijbiomac.2017.04.021subject
Has Abstractpub_date
2017-09-01 00:00:00pages
272-283eissn
0141-8130issn
1879-0003pii
S0141-8130(17)30065-Xjournal_volume
102pub_type
杂志文章abstract：:The synthesis and characterization of a novel biodegradable graft copolymer based on partially hydrolyzed polymethylacrylate (PMA) grafted amylopectin (AP) was reported which was developed for the synthesis of silver nanoparticles from silver nitrate solution by facile green technique. The prepared graft copolymer was...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2015.07.046
更新日期：2015-11-01 00:00:00
abstract：:Pectin has been regarded as a drug carrier accelerating the healing process due to its bioactivities, abundance and lower cost of resources. However, a big challenge related to its practical application is its poor mechanical strength. In this study the modified Cu-based MOF containing Folic acid was synthesized and i...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2021.01.058
更新日期：2021-01-12 00:00:00
abstract：:Human serum albumin (HSA), the most abundant plasma protein in the human body is known to form fibrils under partial denaturing conditions. Natural polyphenols are known to interact with HSA and some polyphenols have been shown to be potent inhibitors of amyloid fibrillation. (-)-Epigallocatechin gallate (EGCG), the m...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2014.07.003
更新日期：2014-09-01 00:00:00
abstract：:For saccharifying starch in one step, a chimeric biocatalyst (Amy-Glu) was generated from engineered α-amylase (Ba-Gt-amy) of Bacillus acidicola and glucoamylase (Glu) gene of Aspergillus niger. In order to join two enzymes, a linker peptide of 25 amino acids was used. Chimeric Amy-Glu was expressed in E. coli. Glu is...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2017.02.083
更新日期：2017-06-01 00:00:00
abstract：:Chronotherapeutically programmed hydroxyethylcellulose (HEC) based compression coated doxazosin tablets were prepared and the influence of disintegrants croscarmellose sodium, L-hydroxypropylcellulose (L-HPC), gellan gum on drug release and in vivo performance were investigated. Infrared spectroscopy and differential ...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2014.08.028
更新日期：2015-01-01 00:00:00
abstract：:β-Lactoglobulin (β-LG) is the major constituent of whey food, which has been shown to interact with a wide range of aroma compounds. In the present work, a model aroma compound, β-ionone, is used to investigate the influence of aroma compounds on the urea-induced unfolding of β-LG at pH 7.0. β-Ionone is observed to en...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2013.12.003
更新日期：2014-03-01 00:00:00
abstract：:Controlled release of antimicrobial and antioxidant compounds from packaging films is of utmost importance for extending the shelf-life of perishable foods. This study focused on the mathematical modeling of gallic acid release into an aqueous medium from three chitosan films, formulated with grape seed extract (GSE) ...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2017.05.187
更新日期：2017-11-01 00:00:00
abstract：:Tamoxifen (Tmx) embedded poly(lactic-co-glycolic acid) (PLGA) nanoparticles (PLGA-Tmx) is prepared to evaluate its better DNA cleavage potential, cytotoxicity using Dalton's lymphoma ascite (DLA) cells and MDA-MB231 breast cancer cells. PLGA-Tmx nanoparticles are prepared through emulsified nanoprecipitation technique...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2016.04.065
更新日期：2016-08-01 00:00:00
abstract：:Proteins in vivo are under an extremely crowded environment because of the presence of bulky and large biological macromolecules (known as crowders). These crowders affect the proper functioning and structure of proteins in a cell. During in vitro studies, we often ignore the effect of macromolecular crowding on prote...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2017.12.060
更新日期：2018-04-01 00:00:00
abstract：:In this paper, the electronspun Polylactic acid (PLA)/TiO2 nanofluids (nfs) fibrous membrane with good toughness, hydrophilicity and antibacterial activities are fabricated by taking full advantages of solvent-free TiO2 nfs with amphiphilicity and ionic conductivity. The resulting PLA/TiO2 nfs fibrous membrane exhibit...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2020.06.027
更新日期：2020-10-15 00:00:00
abstract：:Aequorin as an old small calcium-sensitive photoprotein is a blue fluorescence protein which converts coelenterazine (a substrate) to coelenteramide with a flash type emission. The decay kinetics and emission properties of this protein can be changed using directed mutagenesis of crucial amino acid residue. In this wo...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2018.01.170
更新日期：2018-06-01 00:00:00
abstract：:The increase in industrial demand for peroxidases has necessitated the search for novel peroxidase with excellent industrial versatility. Raoultella ornithinolytica OKOH-1 is a new ligninolytic bacteria with peroxidase production potential. However, there is paucity of information on characterization of peroxidase fro...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2018.10.045
更新日期：2019-01-01 00:00:00
abstract：:The rates of degradation, catalysed by Zn(2+), of four classical penicillins-amoxicillin, ampicillin and penicillins G and V-were followed at 20 degrees C in methanol by spectrophotometric assays. Kinetic schemes of the reactions of degradation catalysed by Zn(2+) ions were analogous to those given previously for the ...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/s0141-8130(03)00081-3
更新日期：2003-12-01 00:00:00
abstract：:Synthesis of Starch-g-(Poly N, N-dimethylacrylamide-co-acrylic acid) was carried out by solution polymerization technique using potassium perdisulfate (K(2)S(2)O(8)) as the initiator. The graft copolymer was characterized by measuring molecular weight, using size exclusion chromatography (SEC), FTIR spectroscopy and X...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2014.09.003
更新日期：2015-01-01 00:00:00
abstract：:This work reports the chemical composition and antimicrobial activity of the essential oil as well as antioxidant and anti-cancer activities of ethyl acetate and aqueous extracts from leaf and stem of Stachys schtschegleevii. The structure of volatile parts and effective phenolic compounds as biological macromolecules...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2019.01.165
更新日期：2019-05-01 00:00:00
abstract：BACKGROUND:Polysaccharides are extensively used in drug delivery systems due to their ability to undergo a broad range of chemical and enzymatic reactions, forming new molecules. Among these, chitosan (CS) and pectin (PEC) are widely used for designing new conjugates and biopolymers. METHODS:In this study, we synthesi...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2020.02.313
更新日期：2020-06-15 00:00:00
abstract：:The 3-D structure of IFN-alpha-k (one of the alpha-interferon family) was constructed and optimized by molecular modelling starting from the X-ray structure of IFN-beta. The molecular surface of the optimized 3-D structure of IFN-alpha-k was then evaluated and characterized for its hydrophobicity/hydrophilicity. The s...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/s0141-8130(96)01143-9
更新日期：1997-04-01 00:00:00
abstract：:Factor VIII (fVIII), a glycoprotein cofactor, plays a crucial role in the intrinsic blood coagulation pathway. As one of the most essential blood clotting factors known today, fVIII is the largest and most complex commercialized therapeutic protein used in the treatment of hemophilia A, an X-linked recessive disorder....
journal_title：International journal of biological macromolecules
pub_type： 杂志文章,评审
doi：10.1016/j.ijbiomac.2018.07.164
更新日期：2018-11-01 00:00:00
abstract：:Topoisomerases IB are anticancer and antimicrobial targets whose inhibition by several natural and non-natural compounds has been documented. The inhibition effect by berberine and some 13-(di)phenylalkyl berberine derivatives has been tested towards human topoisomerase IB. Derivatives belonging to the 13-diphenylalky...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2015.02.051
更新日期：2015-01-01 00:00:00
abstract：PURPOSE:Chitosan is an easily accessible and biocompatible natural molecule which facilitate the immune system. In recent studies, chitosan is being applied to the drug nanosphere to deliver drugs. However, whether chitosan could promote health under exercising condition remains yet to be elucidated. Hence, we designed...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2018.07.067
更新日期：2018-10-15 00:00:00
abstract：:A specific HPLC-MS/MS (High-Performance Liquid Chromatography with tandem Mass Spectrometry) method was developed and validated for simultaneous determination of several monosaccharides in three kinds Osmanthus fragrans Lour. After extraction, separation, protein removal, pigment removal and hydrolysis, monosaccharide...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2018.12.033
更新日期：2019-03-15 00:00:00
abstract：:The structure changes of hemoglobin (Hb) and glucose oxidase (GOx), as two typical proteins, upon interaction with MWCNTs and MWCNTs-[BMIM]BF₄(-) was studied. The ability of MWCNTs and MWCNTs-([BMIM]BF₄(-)) for the achievement of direct electrochemistry of GOx and Hb and enhancing the electron transfer rate between pr...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2013.02.008
更新日期：2013-05-01 00:00:00
abstract：:Exopolysaccharides are high-valued bio-products produced by various microbial species and have been described to possess biological response modifying activities. These bio-products have been effective as therapeutic agents in various human disease conditions. The objective of this study was to examine the effects of ...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2017.04.035
更新日期：2017-09-01 00:00:00
abstract：:Protein phosphatase inhibitor-1 (PPI-1) is a major inhibitor of protein phosphatase 1 (PP1), which regulates signal transduction in many eukaryotic cellular processes. Biophysical studies have shown that PPI-1 has a large Stokes radius and is heat stable, suggesting that it lacks extensive secondary structures. The un...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2006.01.001
更新日期：2006-02-28 00:00:00
abstract：:Through semi-interpenetration of polymer networks with poloxamer, mechanical properties of chitosan (CS) sponge were increased for wound dressing application. Synthesis of poloxamer macromer was confirmed by proton nuclear magnetic resonance (1H NMR) spectra. Possible interactions between CS and poloxamer in semi-inte...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2005.12.020
更新日期：2006-02-28 00:00:00
abstract：:In many skeletal support systems of plants and animals, cellulose, chitin, and collagen occur in the form of microfibrils ordered in a chiral nematic fashion (helicoids). However, these structures remain poorly understood due to the many constituents present in biological tissues. Here we report an in vitro system tha...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/s0141-8130(05)80008-x
更新日期：1992-06-01 00:00:00
abstract：:Bone is a highly integrative and dynamic tissue of the human body. It is continually remodeled by bone cells such as osteoblasts, osteoclasts. When a fraction of a bone is damaged or deformed, stem cells and bone cells under the influence of several signaling pathways regulate bone regeneration at the particular local...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章,评审
doi：10.1016/j.ijbiomac.2017.09.029
更新日期：2018-04-15 00:00:00
abstract：:Pullulan is a thickener that can form semipermeable films, and glutathione is an effective reducing agent, while chitooligosaccharide has antibacterial activity. In this study, effect of pullulan-based coatings in combination with antibrowning and antibacterial agents (1% pullulan; 0.8% glutathione+1% chitooligosaccha...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2013.01.012
更新日期：2013-04-01 00:00:00
abstract：:The effect of putrescine on the dynamics, conformation, and kinetics of acid phosphatase investigated via different experimental and theoretical methods. The Stern-Volmer constants (Ksv) for the acid phosphatase- putrescine compound was obtained at different temperatures. Therefore, putrescine quenched the intensity o...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2020.02.057
更新日期：2020-05-01 00:00:00
abstract：:Cellulose nanocrystals (CNCs) have received a significant amount of attention from the researchers. It is used as a nanomaterial for various applications due to its excellent physiochemical properties for the last few decades. Self-assembly is a phenomenon where autonomous reorganization of randomly oriented species o...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章,评审
doi：10.1016/j.ijbiomac.2020.03.171
更新日期：2020-07-15 00:00:00
