A modified capillary-growth method is described that has substantial advantages for standard and high-throughput protein crystal growth. Protein-containing drops are injected into vapor-permeable flexible X-ray-transparent polyester tubing. The protein concentration in the drop increases over time by water transport through the tubing wall at a rate controlled by the wall thickness and ambient ...

BACKGROUND Suture hole bleeding from synthetic grafts presents a hemostatic challenge. The designs of many vascular sealants are not optimal (non-adherence to wet surfaces, excessive swelling, inflexible). PreveLeak™ (formerly ArterX ((®)) ) is a polyaldehyde-bovine serum albumin-based sealant whose efficacy, safety, and performance were evaluated in this first-in-human study. MATERIALS AND M...

Another study [5] , a randomized controlled clinical trial in Scotland, showed that the conventional caries treatment of primary teeth seems unjustified. This trial used a specific new ‘Hall’ technique [6] , a simplified method of using preformed metal crowns cemented with no local anaesthesia, caries removal or tooth preparation. The study was a GDP-based, split-mouth randomized controlled tri...

A review of the literature on the use of carrier based obturation materials focusing on Thermafil and Resilon based obturator (RealSeal 1) are presented in this article. The review addressed the history, apical leakage, coronal leakage, biocompatibility, sealing ability and clinical success of Thermafil and RealSeal 1. Based on the studies gathered, this review concluded that both treatment tec...

This paper presents a new mechatronic approach of using infrared thermography combined with image processing for the quality control of a laser sealing process for food containers. The suggested approach uses an on-line infrared system to assess the heat distribution within the container seal in order to guarantee the integrity of the process. Visual image processing is then used for quality as...

Abstract Background Infiltration and sealing are micro-invasive treatments for arresting proximal non-cavitated caries lesions; however, their efficacies under different conditions remain unknown. This systematic review meta-analysis aimed to evaluate the caries-arresting effectiveness of infiltration further analyse across dentition types risk levels. Methods Six electronic databases were sear...

Eighteen dogs were used to compare histopathological findings following excision of the soft palate using either a bipolar sealing device or a carbon dioxide laser. Histopathological comparisons were done at 48 and 96 hours after soft palate resection. Mean depths of tissue injury at 96 hours were 3.5 and 3.33 mm for bipolar sealing device and carbon dioxide laser, respectively. Control of hemo...

In this study cross section geometry and material of gasket in proton exchange membrane (PEM) fuel cells have been investigated to achieve optimized fuel cell in terms of energy efficiency. The role of gaskets in fuel cells is sealing of gas flow channels and preventing from combination of them. In a PEM stack, gasket with approved geometry that suffers more stress has better sealing. For this ...

It is quite difficult in actual field applications to properly assess the lifetime of non-metallic sealing elements for valves used in reciprocating compressors. This difficulty is due to the wide variety of operating conditions and contaminants these sealing elements encounter while in service. If one is to determine which of these non-metallic materials will function optimally as sealing elem...