4-tert-Octylphenol (4-t-OP) was treated with the white rot fungus Phanerochaete sordida YK-624 under ligninolytic condition with low-nitrogen and high-carbon culture medium. 4-t-OP completely disappeared after 5 days of treatment and the activities of ligninolytic enzymes, laccase and manganese peroxidase (MnP), were detected during this period, thus suggesting that the disappearance of 4-t-OP ...

Does public policy designed to promote market competition indeed achieve the intended consequence? Using the wireless industry as a testing field, this paper examines this question by focusing on the impact of mobile number portability (MNP) regulation on competition. We first construct a switching-costs model in which market growth rate and initial market structure are two salient industry cha...

We report a biosensing method that is based on magnetically immobilized functional liposomes. The vesicles encapsulate magnetic nanoparticles (MNP) and enzymatic sensing reagents. Magnetic attraction between MNP and external magnets first immobilizes liposomes onto the surface of a coverglass. With the assistance from α-hemolysin (aHL), translocations of analytes through a lipid membrane trigge...

OBJECTIVE This study aims to investigate the potential benefit of combination therapy with magnetic nanoparticles of Fe3O4 (Fe3O4-MNP) and gambogic acid (GA) on SMMC-7721 cells. METHODS The inhibition of proliferation of SMMC-7721 cells was evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Cell apoptosis was calculated and analyzed by flow cytometry, and the exp...

The orotidylate decarboxylase (ODase) gene (ura1) from Schizophyllum commune was utilized as a reporter for studying Mn regulation of the manganese peroxidase (MnP) gene (mnp) from the lignin-degrading basidiomycete Phanerochaete chrysosporium. A 1,500-bp fragment of the mnp1 promoter was fused upstream of the coding region of the ODase gene in a plasmid (pAMO) containing the S. commune ade5 ge...

Few studies have evaluated the impact of fortification with iron-rich foods such as amaranth grain and multi-micronutrient powder (MNP) containing low doses of highly bioavailable iron to control iron deficiency anemia (IDA) in children. We assessed the efficacy of maize porridge enriched with amaranth grain or MNP to reduce IDA in Kenyan preschool children. In a 16-wk intervention trial, child...

Background Melanin and manganese are both indispensable natural substances that play crucial roles in the human body. Melanin has been used as a multimodality imaging nanoplatform for biology science research because of its natural binding ability with metal ions (eg, 64Cu2+, Fe3+, and Gd3+). Because of its effects on T1 signal enhancement, Mn-based nanoparticles have been used in magnetic reso...

Magnetic nanoparticles (MNPs) have been proposed for targeted or embolization therapeutics. How MNP retention occurs in circulation may critically determine local hemodynamics, tissue distribution of MNPs, and the therapeutic effects. We attempted to establish a microcirculation model to study the magnetic capture of MNPs in small vessels and to determine the factors affecting MNP retention. Tw...

Magnetic nanofibrous scaffolds of poly(caprolactone) (PCL) incorporating magnetic nanoparticles (MNP) were produced, and their effects on physico-chemical, mechanical and biological properties were extensively addressed to find efficacy for bone regeneration purpose. MNPs 12 nm in diameter were citrated and evenly distributed in PCL solutions up to 20% and then were electrospun into nonwoven na...

The Number Partitioning Problem (MNP) remains as one of the simplest-to-describe yet hardest-to-solve combinatorial optimization problems. In this work we use the MNP as a surrogate for several related real-world problems, in order to test new heuristics ideas. To be precise, we study the use of weight-matching techniques in order to devise smart memetic operators. Several options are considere...