background & importance: the use of local hemostatic agents in neurosurgery is mandatory in order to control the sequelae of intracerebal hemorrhage. it is widely used in oxidized regenerated cellulose (surgicel™). case presentation: a 54-year-old man previously operated for grade ii meningioma came back to our attention due to the onset of left side arm weakness one month after surgery. the ct...

y-tial intermetallic alloy have a good potential for use as biomaterial, due to its good corrosion resistance. in this paper, two fundamental electrochemical techniques namely electrochemical impedance spectroscopy and potentiodynamic anodic polarization were used to evaluate the corrosion performance of g-tial in ringer's solution. surface modification treatments were employed with the pu...

Toxic organic dyes present in wastewater should be removed before discharge. In this study, TEMPO-oxidized, regenerated cellulose beads were prepared using a simple falling ball technique for cationic methylene blue (MB) removal. The obtained characterized various analytical techniques. results indicated that TEMPO-oxidized displayed porous structures with high content of carboxylic acid groups...

Oxidative modifications can have significant effects on protein structure in solution. Here, the structures and stabilities of oxidized ubiquitin ions electrosprayed from an aqueous solution (pH 2) are studied by ion mobility spectrometry-mass spectrometry (IMS-MS). IMS-MS has proven to be a valuable technique to assess gas phase and in many cases, solution structures. Herein, in vitro oxidatio...

Oxidized sodium alginate is a handily modifiable polysaccharide owing to the pendant aldehyde groups which can form dynamic covalent bonds with amines, acylhydrazines, etc., providing oxidized sodium alginate-based hydrogels with stimuli-responsive properties. However, due to the stiffness and, in particular, the hydrophobicity of sodium alginate dialdehyde at low pH, the mechanical performance...

Patients with end-stage renal disease treated by hemodialysis have enhanced oxidative stress that may result in oxidation of IgG and resultant functional changes. In this study, Western blot analysis was used to assess the oxidized protein content of IgG samples purified from plasma of 8 controls and 11 patients on hemodialysis. In certain experiments, oxidized IgG was digested with papain and ...

Increased LDL oxidation is associated with coronary artery disease. The predictive value of circulating oxidized LDL is additive to the Global Risk Assessment Score for cardiovascular risk prediction based on age, gender, total and HDL cholesterol, diabetes, hypertension, and smoking. Circulating oxidized LDL does not originate from extensive metal ion-induced oxidation in the blood but from mi...

Measurements of ambient organic aerosol indicate that a substantial fraction is highly oxidized and low in volatility, but this fraction is generally not reproduced well in either laboratory studies or models. Here we describe a new approach for constraining the viable precursors and formation pathways of highly oxidized organic aerosol, by starting with the oxidized product and considering the...