Abstract Locally available apricot ( Prunus armeniaca L.) seed shell wastes were utilized for the preparation of an efficient dye biosorbent. The as-prepared powder ASP ) was thoroughly characterized using FTIR, SEM-EDX, XRD, BET surface area, and pH PZC measurements to elucidate its functional groups, as well texture morphology charge. effect several process variables (such contact time, bioso...

in this study, cross linked chitosan resin (ccr) was prepared by cross linking chitosan with glutaraldehyde, and then î±-ketoglutaric acid-modified chitosan resin (kcr) was obtained by modifying ccr with î±-ketoglutaric acid. the sorption behavior of methylene blue (mb) on kcr and ccr from aqueous solution was investigated. the effect of various experimental parameters (e.g. initial ph, sorbent...

methemoglobinemia is a disorder characterized by the presence of a higher than normal level of methemoglobin. prilocaine which is one of the oxidizing local anaesthetics is widely used in many local procedures. the first choice of treatment of complications due to the use of these local anaesthetics is methylene blue, while ascorbic acid is the alternative choice. the side effects of metilen bl...

fertilizer plant waste carbon slurry has been investigated after some processing as an adsorbent for the removal of dyes and phenols using columns. the results show that the carbonaceous adsorbent prepared from carbon slurry being porous and having appreciable surface area (380 m2/g) can remove dyes both cationic (meldola blue, methylene blue, chrysoidine g, crystal violet) as well as anionic (...

background and purpose:the presence of dyes in wastewaters may cause serious problems for the environment because of their high toxicity to aquatic organisms and unfavorable aesthetical impact. in the present study, multi-walled carbon nanotubes (mwcnts) were used for removal of anionic dyes direct blue 106 (db106) and acid green 25 (ag25), from water samples. materials and methods:mwcnts were ...

CONSERVATION: Scientists Laud Bush's Blue Legacy But Want More Christopher Pala Science 9 January 2009: 192-193. Summary: Setting a middle course between the wishes of marine biologists and the concerns of the Pentagon and recreational fishers, President George W. Bush this week dusted off a little-used law for the second time in his Administration to protect swaths of ocean totaling an area th...

The coronavirus spike (S) protein mediates infection of receptor-expressing host cells and is a critical target for antiviral neutralizing antibodies. Angiotensin-converting enzyme 2 (ACE2) is a functional receptor for the coronavirus (severe acute respiratory syndrome (SARS)-CoV) that causes SARS. Here we demonstrate that a 193-amino acid fragment of the S protein (residues 318-510) bound ACE2...

chain electrophoresis: a new approach to the determination of the GgAg ratio in fetal haemoglobin and to studies of globin synthesis. Br. J. Haematol. 44:527-534. 2.Dionisi, H.M., S.K. Checa and A.M. Viale. 1995. Protein immunoblotting of stained gels. BioTechniques 19:348-349. 3.Harrington, M.G. 1990. Elution of proteins from gels, p. 488-495. In M.P. Deutscher (Ed.), Methods in Enzymology, Vo...

Background & objectives: The release of dyestuff wastewaters produced in textile industry into receiving waters affects both human health and the environment. The aim of this study was to investigate the efficiency of a photocatalytic UV/persulfate process in removal of methylene blue and acid green 3 dyes from aqueous solutions. Methods: The current study was an experimental study, in which t...