Abstract:
:In the present study, a bacterium resistance to heavy metals was isolated from contaminated areas. An eco-friendly and simple method was found to biosynthesis of silver nanoparticles (AgNPs) by reducing of aqueous Ag+ using the heavy metals resistance MKH1 bacterium. The biosynthesized AgNPs were characterized by UV-vis spectroscopy, scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques. A peak at about 420nm is related to absorption band of AgNPs which confirms by UV-vis spectroscopy. The SEM images showed that the biosynthesized AgNPs have mainly spherical shape with average diameters of 30-60nm. The electro-catalytic properties of AgNPs with different Ag content were investigated by different electrochemical tests. Biosynthesized AgNPs using isolated MKH1 show high catalytic activity and stability towards the oxidation reaction of hydrazine.
journal_name
Int J Biol Macromoljournal_title
International journal of biological macromoleculesauthors
Rostami H,Khosravi F,Mohseni M,Rostami AAdoi
10.1016/j.ijbiomac.2017.08.179subject
Has Abstractpub_date
2018-02-01 00:00:00pages
343-348issue
Pt Aeissn
0141-8130issn
1879-0003pii
S0141-8130(17)32185-2journal_volume
107pub_type
杂志文章abstract::A novel extracellular lignin peroxidase (called LiP-SN) was produced and purified from a newly isolated Streptomyces griseosporeus strain SN9. The findings revealed that the pure enzyme was a monomeric protein with an estimated molecular mass of 43 kDa and a Reinheitzahl value of 1.63. The 19 N-terminal residue sequen...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2014.11.021
更新日期:2015-02-01 00:00:00
abstract::In this study some physicochemical properties and elemental analysis of Prunus avium gum exudates were investigated. The gum studied had, on average, 75.14% carbohydrate, 11.3% uronic acids, 1.11% protein, 7.53% moisture content (w.b.) and 3.12% ash. Measured values for the angle of repose, Carr's index and Hausner ra...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2016.08.070
更新日期:2016-12-01 00:00:00
abstract::A novel diethoxy phosphoryl chitosan was successfully synthesized via Atherton-Todd reaction of chitosan with diethyl phosphite, and the characterization was carried out by FT IR, NMR, ICP, XRD, TG and SEM, respectively. The FT IR, (13)C NMR and (31)P NMR results showed that diethoxy phosphoryl group was grafted onto ...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2010.06.014
更新日期:2010-11-01 00:00:00
abstract::In the present study, adsorption of Cu(II) ions from aqueous solutions was evaluated using new thin adsorptive membranes modified with silver nanoparticles. Membranes were prepared from chitosan/polyacrylamide polymer blend. The variation of adsorption process was investigated in batch sorption mode. Infrared absorpti...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2016.01.101
更新日期:2016-05-01 00:00:00
abstract::Bacillus anthracis, the causative agent of anthrax, is a harmful pathogen with potential ability as a biological weapon which persuades scientists to develop novel methods to detect anthrax from infected resources. In this study, a multi-walled carbon nanotube (MWCNTs)-based fluorescence aptasensor was fabricated to d...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2019.08.219
更新日期:2019-11-01 00:00:00
abstract::Enhancing the performance of wood adhesive is important for its industrial applications. Accordingly, we designed and demonstrated the use of two co-monomers vinyl acetate (VAc) and butyl acrylate (BA) for promoting the graft copolymerization while improving the bonding performance of wood adhesive. The results showed...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2018.03.178
更新日期:2018-07-15 00:00:00
abstract::Two diketone based oxovanadium complexes, viz., bis(4,4,4-trifluoro-1-phenylbutane-1,3-dionato)oxovanadium(IV) (1) and bis(1,1,1-trifluoropentane-2,4-dionato)oxovanadium(IV) (2), have been synthesized and characterized by spectroscopic and analytical techniques. The DNA binding and the cleaving ability of the complexe...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2015.02.027
更新日期:2015-05-01 00:00:00
abstract::Natural polysaccharides are extensively investigated as cell scaffold materials for cellular adhesion, proliferation, and differentiation due to their excellent biocompatibility, biodegradability, and biofunctions. However, their application is often severely limited by their mechanical behavior. In this study, a toug...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2014.10.058
更新日期:2015-03-01 00:00:00
abstract::In this paper, selenized Artemisia sphaerocephala polysaccharides (SePAS) were obtained through employing N-methyl-2-pyrrolidone hydrosulfate as catalyst, which showed a maximum Se content enhanced to 8744 μg/g. FT-IR, 1D/2D NMR, X-ray photoelectron spectroscopy (XPS) and size-exclusion chromatograph analysis exhibite...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2020.05.261
更新日期:2020-10-01 00:00:00
abstract::In the present work, Dioscorea opposita Thunb polysaccharide-zinc (DPS-zinc) inclusion complex was synthesized for the first time and its anti-diabetes activities against Streptozotocin (STZ)-induced diabetic rats were assayed. The detail structural and morphological analysis of as-prepared DPS-zinc complex was done b...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2018.10.068
更新日期:2019-01-01 00:00:00
abstract::In the present study, Penicillium proteolyticum lectin was purified by DEAE-Sepharose chromatography followed by Sephadex G-100 gel filtration chromatography. A sequence of ion-exchange and gel filtration chromatography resulted in 52.30 fold purified lectin with a high yield of 84.21%. The purified P. proteolyticum l...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2019.01.103
更新日期:2019-05-01 00:00:00
abstract::A deletion mutant of the transcarboxylase biotin carrier protein was completely labeled with 13C and 15N. A multitude of 2D and 3D NMR spectra were recorded and assigned. An NMR solution structure was derived from the data and compared in detail with the recently published structure of the wild-type. It is shown that ...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/s0141-8130(02)00033-8
更新日期:2002-10-01 00:00:00
abstract::Naked barley grains were germinated at 25 °C for 12, 24, and 36 h, followed by hot air and infrared drying. Changes in structural, physicochemical, and functional properties of naked barley flour and starch after germination and drying were evaluated. Germinated and dried flour showed loose structure in starch granule...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2020.10.114
更新日期:2020-12-15 00:00:00
abstract::Protein phosphorylations have essential regulatory roles in visual signaling. Previously, we found that phosphorylation of several proteins in the retina and retinal pigment epithelium (RPE) is involved in anti-apoptotic signaling under oxidative stress conditions, including light exposure. In this study, we used a ph...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2010.11.006
更新日期:2011-01-01 00:00:00
abstract::The Ca(2+)-induced conformational changes in calmodulin (CaM) were monitored by Fourier transform infrared spectroscopy (FT-IR) at different molar ratios of Ca(2+) to CaM. The results show that these changes occur in two distinctive transitions. The first transition involves significant changes in the overall secondar...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2013.02.004
更新日期:2013-05-01 00:00:00
abstract::Protein fibrillation is associated with a number of neurodegenerative diseases. Nevertheless, several proteins not related to disease can also form fibrils in vitro under specific conditions. In the present study, we demonstrate the reversible fibrillation of a globular protein that is modulated by salt under physiolo...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2017.06.008
更新日期:2017-11-01 00:00:00
abstract::Calcium alginate hydrogel dressing is an excellent hydrogel dressing because of its excellent absorption characteristics and tear-free pain. However, its application is limited by its poor mechanical properties and non-bacterial properties. Here, we reported a new biomimetic hydrogel dressing with good mechanical prop...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2019.12.046
更新日期:2020-01-15 00:00:00
abstract::Removals of tetracycline and photocatalytic degradation of phenol by Fe3O4/coffee residue (MCC) were investigated. Brunauer-Emmett-Teller (BET), vibrating sample magnetometer (VSM) and Boehm titration were employed to characterize MCC. Artificial neural network (ANN) model was developed to predict the tetracycline (TC...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2015.08.054
更新日期:2016-09-01 00:00:00
abstract::As an important direct solvent for cellulose, N-methyl morpholine N-oxide (NMMO) is environmentally friendly, and potentially very economical. Silk fibroin (SF) (Bombyx mori) can also be dissolved directly in NMMO.H2O. However, it is unexpectedly difficult to obtain a silk fibroin solution with a concentration higher ...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2004.11.008
更新日期:2005-04-01 00:00:00
abstract::Collagen, a unique connective tissue protein finds extensive application as biocompatible biomaterial in wound healing, as drug carriers, cosmetics, etc. A work has been undertaken to study the stabilization of type I collagen using the plant polyphenol catechin. Catechin treated collagen fibres showed a shrinkage tem...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2005.08.005
更新日期:2005-10-30 00:00:00
abstract::Hericium erinaceus polysaccharide (HEP) is a traditional Chinese medicine. In the present study, chemical composition and antioxidant activity of HEP was investigated. HPLC analysis showed that the HEP was composed of xylose (7.8%), ribose (2.7%), glucose (68.4%), arabinose (11.3%), galactose (2.5%) and mannose (5.2%)...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2012.09.009
更新日期:2013-01-01 00:00:00
abstract::This study aimed to investigate the protective effects of walnut green husk polysaccharide (WGHP) on liver injury, vascular endothelial dysfunction and disorder of gut microbiota in mice induced by high fructose (HF) diet. The chemical analysis results show that the walnut green husk polysaccharide is a low molecular ...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2020.06.055
更新日期:2020-11-01 00:00:00
abstract::In this study the extraction of hot water soluble polysaccharides (HWSPs) from Cymbopogon citratus using hot water decoction was discussed. Response surface methodology (RSM) based on a three level, three variable central composite rotatable design (CCRD), was employed to obtain best possible combination of extraction...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2014.01.033
更新日期:2014-04-01 00:00:00
abstract::Chitosan (CS) has attracted significant interest in various fields due to its outstanding functional properties (especially, its chain with positive charge). However, wide-range applications of CS are severely limited because of its poor mechanical properties. Ultrastrong composite film of CS and silica-coated graphen...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2017.07.003
更新日期:2017-11-01 00:00:00
abstract::The soybean protein was hydrolyzed by Alcalase Food grade (FG) 2.4 L and the optimal hydrolysis parameters of strongest antioxidant capacity of peptides were obtained using response surface methodology (RSM). The effects of reaction temperature, pH value and ratio of enzyme/soybean protein powder ([E/S]) on the 2,2-di...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2013.04.008
更新日期:2013-08-01 00:00:00
abstract::Protic ionic liquids have been proposed as effective solvents for the selective extraction of lignin from wood. In this work, the protic ionic liquid 1-methylimidazolium chloride has been used to extract lignin at different biomass loadings, temperatures, and times to understand the influence of treatment severity on ...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2020.04.194
更新日期:2020-08-15 00:00:00
abstract::Lectins are proteins that have as one of their main characteristics recognizing and reversibly binding to carbohydrates. In this work, it was possible to purify and characterize a lectin from Parkia panurensis (Leguminosae family; Mimosoideae subfamily) seeds by a combination of the techniques: protein precipitation, ...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2019.10.102
更新日期:2020-02-15 00:00:00
abstract::Excessive free radicals can cause oxidative damage to human tissues, which results in a variety of diseases. Therefore, the development of antioxidant materials is one of the great projects in biomedical field. In this work, antioxidant protocatechuic acid (PCA) monomers were grafted onto chitosan (CS) backbones to de...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2017.12.019
更新日期:2018-04-01 00:00:00
abstract::In this work, graft-copolymerization of poly vinylpyrollidone onto Azadirachta indica gum polysaccharide in the presence of crosslinker has been carried out to prepare the hydrogel for use in drug delivery. The polymers were characterized by cryo-SEM, AFM, FTIR, and 13C NMR. The gel strength, cross-link density, mesh ...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2020.05.091
更新日期:2020-09-15 00:00:00
abstract::Multidrug-resistant (MDR) bacterial infection still poses a serious threat to public health, therefore, effective and safe antimicrobial agents are urgently needed. In this study, recombinant bacteriocin BMP32 (BMP32r) prepared by the Escherichia coli expression system had a broad-spectrum antibacterial activity even ...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2020.07.192
更新日期:2020-12-01 00:00:00