Effectiveness of a Novel Antimicrobial Dressing in Treating Chronic Venous Leg Ulcers

Aim and objective: The purpose of this study was to investigate the effectiveness ofSilver containing wound dressing in Leg ulcer patients with chronic venous disease. Methods: 60 patients with venous leg ulcers were treated with silver colloid dressings for four weeks, followed by conventional dressings for four weeks with or without having signs ofinfection were treated. Clinical evolution of the wound in terms of size, depth and ulcer painwere monitored for eight weeks. In this study, two participants defaulted and lost to follow up. Results: The wound condition has significantly improved after 8 weeks with completely healed ulcers in 4 patients, 48 (76%) patients had improvement and 2 patients had deteriorated wound requiring debridement. An average of 54% reduction in size and 60% reduction in depth of ulcers seen. No adverse events were encountered related to wound dressings. Participants reported less pain on pain scores as the study progressed. Conclusion:  According to this study, silver wound dressings have an acceptable efficacy for treating chronic venous leg ulcers where biofilm formation might inhibit healing

Studies on mechanical behavior and microstructural analysis of tailor welded blanks of Ti–6Al–4V titanium alloy sheet

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The role of laser in manufacturing of shape memory alloy (sma)

Abstract Shape Memory Alloys are widely used smart materials in recent times for various applications from aerospace to biomedical field. Shape Memory Alloy (SMA) is made of mixture of different metal powders (Ni-Ti with 50 – 50 Wt% (approximate) can give Nitinol) and/or by using filler metals. However, fusing the selected powder mixture and making as SMA is a challenging task. Researchers used various techniques for making SMA which can be classifed into two major categories likely casting method and powder metallurgy method. Laser power to make SMA is widely used by most of the researchers. These processes are further classified by conventional and non-conventional methods. Under this method various classification like Direct Laser Melting, Selective Laser Melting, Laser Sintering and Laser Cladding are available. In this article, the above-mentioned production methods using laser as major source are studied carefully. The advantages and limitations are also discussed on justifying the suitability of processing SMA by lasers. Along with their limitations the influence of each parameter is focused. Finally, a conclusion is made based on this detailed study.</jats:p