Molecularly imprinted polymer (MIP) nanoparticle-on-microspheres (NOM) selective for S-propranolol were successfully prepared using suspension polymerization involving agitation of the reaction mixture at high speed. The integration of the MIP-NOM into a self-assembled porous cellulose membrane ...

The stereoselective hydrolysis of O‐isovaleryl propranolol (isovaleryl‐PL) was studied using phosphate and Tris‐HCI buffers (pH 7.4), dog plasma, and liver preparations. The 10000g supernatant, microsomes, and cytosol were prepared from the liver homogenate. The hydrolysis rate of isovarelyl‐...

Cryptosin -a new cardenolide was found to be a potent inhibitor of cardiac Na+ and K+ dependent Adenosinetri-phosphatase (7). In experiments with dog heart exvivo, development of inotropic and toxic effect correlated with changes in the cardiac dihydropyridine-specific calcium channels as measur...

A new cardenolide named cryptosin was isolated from the leaves of Cryptolepis buchanani. By spectral studies and single crystal X-ray crystallography, cryptosin was found to possess a novel structure. The structure thus established was 3β-(d-deoxy glucose-oxy)-14β,11β-dihydroxy-7α,8α-epoxy-...

SUMMARYChanges in haemoglobin concentration and systolic blood pressure were measured for fifty-six patients receiving three different methods of anaesthesia. One group received anaesthesia comprising a relaxant with nitrous oxide and oxygen and controlled respiration: no significant changes occ...

The mackerel icefish (Champsocephalus gunnari) is a prominent member of the coastal fish fauna of the Seasonal Pack-Ice Zone and the islands north of it. Separated into a number of stocks, its distribution ranges from the Scotia Arc region, namely South Georgia, in the Atlantic Ocean sector to t...

1.1. Hemoglobin A was modified with many reducing sugars and with acetylsalicylate.2.2. The solubilities of the glycosylated hemoglobins were substantially higher than the unmodified control both in oxygenated and m deoxygenated conformations.3.3. A slight decrease in solubility was observed for...

Staphylococcus aureus is a medically important bacterial pathogen that, during infections, acquires iron from human hemoglobin (Hb). It uses two closely related iron-regulated surface determinant (Isd) proteins to capture and extract the oxidized form of heme (hemin) from Hb, IsdH and IsdB. Both...

Deoxyhemoglobin content was measured in hemoglobins from trout, chicken and bovine sources between pH 5.5 and 7.5. With decreasing pH, deoxyhemoglobin content of trout was highest, low to intermediate in chicken, and lowest in beef hemoglobin. Each type of hemoglobin was added to washed cod musc...

BackgroundDelay in diagnosis of anaemia during preoperative assessment poses logistic problems, leading to multiple clinic visits, inadequate preoperative management, and unnecessary delay of surgery. Therefore, we tested an instant spectrophotometric haemoglobin (SpHb) measurement technique to ...

An 8-week growth trial was conducted to evaluate effects of replacing fishmeal protein (FMP) by hemoglobin powder protein (HPP) on growth performance, food intake, feeding-related genes expression and gut histology of hybrid grouper (Epinephelusfuscoguttatus × Epinepheluslanceolatus) juveniles....

An alternative substrate is described for enzyme immunosaasay with electrochemical detection. Alkaline phosphatase (EC.3.1.3.1) activity is determined by using p-aminophenyl phosphate as the enzyme substrate. Enzyme-generated p-aminophenol is detected amperometrically at a glassy carbon electrod...

Film forming, soluble polyamides have been prepared by low temperature polycondensation in an amide solvent, from aromatic diamines, in the form of derivatives of bis-(p-aminophenyl)methane, and a number of dicarboxylic acid chlorides. These polyamides have good thermal and mechanical properties.

An alkaline phosphatase (AP) immobilized gold nanoelectrode ensemble (GNEE) was fabricated by electroless deposition of Au3+ onto the nanopores (d = 50 nm) of polycarbonate membranes and modifying the surface of GNEE successively with a self-assembled monolayer (SAM) of 2-aminoethanethiol, an al...

A promising fluorene derivative 9,9-bis{4-[di-(p-biphenyl)aminophenyl]}fluorene (BPAPF) of high glass-transition temperature (Tg=167 °C) was synthesized and assessed as the hole-transporting material (HTM) in electroluminescent devices. Devices of various configurations, such as single-heteroju...

Graphene oxide (GO) based glassy carbon (GC) electrode has been prepared. Firstly, p-nitrophenyl (NP) modified GC (NP/GC) electrode was prepared via the electrochemical reduction of its tetraflouroborate diazonium salt. After the formation of NP/GC electrode, the negative potential was applied t...

3,3″-Di(4-aminophenyl)-5,5″-di(4-biphenylyl)-p-terphenyl and 3,3″-di(4-aminophenyl)-5,5″,6,6″-tetraphenyl-p-terphenyl as well as the corresponding acid chlorides were synthesized through pyrylium salts. The polyamides and polyimides prepared from them were characterized by inherent viscosit...

Absorption, fluorescence emission, fluorescence excitation spectra and fluorescence decay kinetics of carborane derivatives of 5,10,15,20-tetra(p-aminophenyl)porphyrin have been investigated. Carborane derivatives are prepared by acylation of the amino groups of 5,10,15,20-tetra(p-aminophenyl)po...

Electrochemical behavior and superoxide-assisted electrochemical deposition of Mn(III)chloride 5,10,15,20-tetrakis(meta-aminophenyl)porphine (MnClT(m-NH2Ph)P) and Mn(III)chloride 5,10,15,20-tetrakis(para-aminophenyl)porphine (MnClT(p-NH2Ph)P) in DMSO solutions on electrodes of various types have...

For the investigation of glycosidases, and for the construction of glycan arrays the p-nitrophenyl- and p-aminophenyl glycosides of mucin O-glycan core structures 1–7 and the 2,6-ST-antigen have been chemically synthesized using d-galactose as a precursor for GalNAc residues. GlcNAc residues ha...