Exploring routes to visible-light-driven rotary motors, the possibility of red-shifting the excitation wavelength of molecular motors by extension of the aromatic core is studied. Introducing a dibenzofluorenyl moiety in a standard molecular motor resulted in red-shifting of the absorption spectrum. UV/vis and 1H NMR spectroscopy showed that these motors could be isomerized with light of wavele...

There have in the past been few successful small oil flooded rotary air compressors, due in the main to the cost of manufacture and the problem of internal condensation with intermittent operation. The paper describes a new approach to overcoming these problems, and reports a successful outcome.

This study evaluated the bond strength of mineral trioxide aggregate (MTA) to root canal dentin after the performance of various irrigation procedures to remove triple antibiotic paste (TAP). A total of 56 single-rooted human mandibular premolars were instrumented using a rotary system to size 40 and divided randomly into a control group (no intracanal dressing) and three experimental groups (T...

OBJECTIVE Major catheter-related infection includes catheter-related bloodstream infections and clinical sepsis without bloodstream infection resolving after catheter removal with a positive quantitative tip culture. Insertion site dressings are a major mean to reduce catheter infections by the extraluminal route. However, the importance of dressing disruptions in the occurrence of major cathet...

BACKGROUND Skin grafting is a frequent surgical procedure used to reconstruct a soft-tissue deficit. Tie-over bolster dressing is the traditional technique made to fix the graft to the recipient area. This dressing does not always provide satisfactory results in some difficult body areas, with poor skin graft taking as an outcome. Here, we used a soft "polyurethane sponge" as a compressive tool...

OBJECTIVE To determine if the experimental (keratin-based) dressing accelerates epithelialization rates during healing of partial-thickness wounds, relative to a Standard Care dressing. METHOD A randomized control trial was conducted using a Standard Care dressing side by side with the experimental dressing on a sample (n=26) of partial-thickness donor site wounds. The proximal/distal placeme...

Split-thickness skin grafting (SSG) is a common reconstructive technique for the treatment of patients with deep burns and other traumatic injuries. The management of the donor site after harvesting an SSG remains controversial because of a variety of dressings available for use. The aim of this randomized controlled trial was to compare the effectiveness of a polyurethane dressing, Allevyn™, t...

UNLABELLED xBxxaxcxkground. In addition to prevention guidelines already in place, the effectiveness of an antimicrobial dressing on the occurrence of surgical site infections (SSIs) among adult patients undergoing cardiac surgery was evaluated. METHODS A house-wide replacement of the plain postoperative gauze dressing with a sterile dressing impregnated with 0.2% polyhexamethylene biguanide ...

OBJECTIVE To evaluate the acceptability, tolerance and efficacy of Urgotul wound dressing in the management of epidermolysis bullosa (EB) skin lesions. METHOD This was an open-label uncontrolled clinical trial involving 20 patients (I I adults and nine children) with EB simplex or dystrophic EB. Patients were selected from the register of EB patients at the investigating centre and included i...

OBJECTIVE To evaluate the protection and acceptability of Urgotul wound dressing in the local management of acute or chronic wounds receiving topical negative pressure (TNP) therapy. METHOD This was a prospective multicentre non-comparative open-label trial. At each dressing change the investigating physician clinically evaluated and photographed the wound. Planimetric measurement was underta...