Developed Design for Line Bleeding Injection Pump: Double-Act LBIP

A Compact Reactor-Pump-Cell-Injection System for In-Situ / On-Line Spectroscopic Studies

Compact reaction systems for exploratory studies, over wide pressure intervals, are essential in many applications. This is particularly true for studies involving very expensive reagents and isotopes. The system was used for heterogeneous catalysis, with a chiral fixed bed reactor. The system consisted of a 25ml 2-phase stirred-tank(gas, liquid), liquid phase pump, a fixed bed reactor with sma...

Efficacy evaluation of syringe pump developed for continuous drug infusion

BACKGROUND In dental intravenous sedation, continuous intravenous infusion of a low-dose drug requires an infusion pump such as a syringe pump. To develop a new syringe pump for clinical use, the functions of the pump must meet certain international standards. Various safety and efficacy tests must be performed on the syringe pump, as stipulated by these standards, and an approval must be recei...

Proton pump caught in the act.

On page 255 of this issue, Luecke et al. (1) reveal the structure of bacteriorhodopsin, an active transport protein, frozen in midstroke. Bacteriorhodopsin is a membrane protein that uses a photon of visible light as an energy source to transport a proton across the membrane against an electrochemical gradient, resulting in proton release on one side of the membrane and proton uptake on the opp...

An Elegant Impulser Developed for Flat Beam Injection

Preservative-free triamcinolone acetonide suspension developed for intravitreal injection.

OBJECTIVES All commercially available triamcinolone acetonide (TACA) suspensions, used for intravitreal treatment, contain retinal toxic vehicles (e.g., benzyl alcohol, solubilizer). Our aim was to find a convenient and reproducible method to compound a completely preservative-free TACA suspension, adapted to the intraocular physiology, with consistent quality (i.e., proven sterility and stabil...