OBJECTIVES Alarm over the reported high failure rates for metal-on-metal (MoM) hip implants as well as their potential for locally aggressive Adverse Reactions to Metal Debris (ARMDs) has prompted government agencies, internationally, to recommend the monitoring of patients with MoM hip implants. Some have advised that a blood ion level >7 µg/L indicates potential for ARMDs. We report a systema...

Decapping enzymes are required for the removal of the 5'-end cap of mRNAs. These enzymes exhibit a specific hydrolase activity, resulting in cleavage between the alpha- and beta-phosphates of the m7GpppN cap to generate both m7GDP and monophosphorylated RNA products. Decapping enzymes have been found in humans, plants and yeasts, and have been discovered more recently in vaccinia virus (D10 pro...

the present work is carried out to study the antioxidant potential of ethanolic extract of alstonia scholaris linn. ( apocynaceae ) using various in vitro tests including 1,1-diphenyl-2-picryl-hydrazil (dpph . ) free radical scavenging, metal ion chelating, hydrogen peroxide scavenging, superoxide anion radical scavenging, and ferric thiocyanate reducing ability.   ethanolic extract of alstonia...

Metal-ion batteries are systems for electrochemical energy conversion and storage with only one kind of ion shuttling between the negative positive electrode during discharge charge. This concept also known as rocking-chair battery has been made highly popular lithium-ion its most example. The principle can be applied other cations both mono- multivalent. might have implications advantages in t...

In the last few years, various studies have been providing evidence that metal ions are critically involved in the pathogenesis of major neurological diseases (Alzheimer, Parkinson). Metal ion chelators have been suggested as potential therapies for diseases involving metal ion imbalance. Neurodegeneration is an excellent target for exploiting the metal chelator approach to therapeutics. In con...

The behavior of linear and nonlinear dust acoustic waves (DAWs) in an unmagnetized plasma including inertialess electrons and positrons, ions, and mobile positive/negative dust grains are studied. Reductive perturbation method is employed for small and finite amplitude DAWs. To investigate the solitary waves, the Korteweg–de Vries (KdV) equation is derived and the solution is presented. B...

1974 First use of immobilized chelators to isolate metalloproteins 1975 First description of general technique (IMAC) using IDA 1983 Introduction of high performance on silica based media 1986 Use of Fe3# chelates to purify phosphoproteins 1987 Introduction of NTA 1988 Introduction of genetically engineered His tags 1992 Introduction of TREN 1998 Introduction of TACN Freeze NH (1995) Lectin afR...

Lithium-ion batteries have transformed our lives and are now found in everything from mobile phones to laptop computers electric cars. In lithium-ion batteries, an adequate electrolyte was developed using a winding process nearly related the progress of electrode chemistries. this technology, metal oxide is cathode, porous carbon anode. The electrochemical interaction anode material with lithiu...

The safe decomposition of solid TATP (triacetone triperoxide) explosive is examined theoretically. The route to destruction starts with formation of metal complexes between a metal ion and the TATP molecule. The second step is decomposition of the molecules into stable final products. We examined the structure and stability of both metal ion (including Na(+), Cu(+), Cu(2+), Co(2+), and Zn(2+)) ...

Scalable elements that can be switched between widely-separated non-volatile resistance states at very low power are desirable for applications in next generation memory and logic. One potential approach involves the use of solid electrolyte films. A mobile metal ion-containing electrolyte film sandwiched between an oxidizable metal layer and an inert electrode constitutes a device which revers...