A technique for the cryopreservation of third stage larvae of Gaigeria pachyscelis is described. It consists of incubating sheathed third-stage larvae in 80% (v/v) ethylene glycol as a cryoprotectant for 30 s at 0 degrees C, prior to transfer into liquid nitrogen. The survival rate, as assessed by motility, was 37.6% after 30 d cryopreservation. A sheep infected percutaneously with 700 live cry...

Loading of cryoprotectants into oocytes is an important step of the cryopreservation process, in which the cells are exposed to potentially damaging osmotic stresses and chemical toxicity. Thus, we investigated the use of physics-based mathematical optimization to guide design of cryoprotectant loading methods for mouse and human oocytes. We first examined loading of 1.5 M dimethyl sulfoxide (M...

Cryopreservation is a key technology in biology and clinical practice. This paper presents a digital microfluidic device that automates sample preparation for mammalian embryo vitrification. Individual micro droplets manipulated on the microfluidic device were used as micro-vessels to transport a single mouse embryo through a complete vitrification procedure. Advantages of this approach, compar...

A technique for the cryopreservation of third-stage larvae of Gaigeria pachyscelis is described. It consists of incubating sheathed infective larvae at 37 degrees C in 40% (v/v) ethylene glycol for 7 min, followed by 2 min at 0 degree C in 82.8% (v/v) cryoprotectant mixture, prior to transferring the larvae to liquid nitrogen. The survival rate obtained with this technique is consistently high:...

The amount of transfused dimethyl sulfoxide (DMSO) is indicated as the major cause of the cryoprotectant-related toxicity in autologous stem cell recipients, with a high incidence of major cardiac side effects. In this study we tried to discover whether fractionated infusion of the total graft volume could prevent the DMSO-related major cardiovascular side effects. We conclude that continuous c...