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advance wound dressing

Mohammad Hossein Rajabian, Gholam Hossein Ghorabi, Bita Geramizadeh, Safoura Sameni, Maryam Ayatollahi
BACKGROUND: Chronic wounds present a major challenge in modern medicine. Even under optimal conditions, the healing process may lead to scarring and fibrosis. The ability of mesenchymal stem cells (MSCs) to differentiate into other cell types makes these cells an attractive therapeutic tool for cell transplantation. Both tissue-engineered construct and MSC therapy are among the current wound healing procedures and potential care. Chitosan has been widely applied in tissue engineering because of its biocompatibility and biodegradability...
November 9, 2016: Tissue & Cell
Subhamoy Das, Aaron B Baker
Wound healing is an intricate process that requires complex coordination between many cell types and an appropriate extracellular microenvironment. Chronic wounds often suffer from high protease activity, persistent infection, excess inflammation, and hypoxia. While there has been intense investigation to find new methods to improve cutaneous wound care, the management of chronic wounds, burns, and skin wound infection remain challenging clinical problems. Ideally, advanced wound dressings can provide enhanced healing and bridge the gaps in the healing processes that prevent chronic wounds from healing...
2016: Frontiers in Bioengineering and Biotechnology
Hai-Fei Liu, Feng Zhang, William C Lineaweaver
Advances in burn care have a long history with accelerated development within the last 50 years. The principal areas of burn treatment include dressings, antimicrobials, fluid resuscitation, burn wound excision, grafting of skin, and skin substitution. This review presents a historical outline of these areas, their current status, and prospects for the future of burn care.
October 19, 2016: Annals of Plastic Surgery
Manuela Porso, Simona Loreti, Sveva Maria Nusca, Sara Luziatelli, Donatella Caccia, Giulia Taborri, Donatella Trischitta, Maurizio Taurino, Luca Padua, Vincenzo Maria Saraceni, Maria Chiara Vulpiani, Mario Vetrano
Chronic soft tissue wounds of the lower limbs are debilitating, painful and often unresponsive to advanced dressing treatments. Extracorporeal shock wave therapy (ESWT) could represent an alternative treatment. Ten patients with chronic soft tissue wounds of the legs, unresponsive to advanced dressing treatments for more than 3 mo, underwent three defocused ESWT sessions at 72-h intervals. In every session, the sum of 300 standard pulses + 100 pulses per square centimeter was applied at 0.15 mJ/mm(2) and 4 Hz over the edge of the wound...
January 2017: Ultrasound in Medicine & Biology
Francesco De Francesco, Antonio Graziano, Letizia Trovato, Gabriele Ceccarelli, Maurizio Romano, Marco Marcarelli, Gabriella Maria Cusella De Angelis, Umberto Cillo, Michele Riccio, Giuseppe Andrea Ferraro
BACKGROUND: The etiology of non-healing ulcers depends on both systemic and local factors. The introduction of advanced dressing, negative wound therapy and compression therapy have undoubtedly improved clinical outcomes. The principal aim of study was to demonstrate the efficacy of dermal micrografts in the treatment of ulcers with different etiologies. The second aim was to investigate in vitro the action of micrografts in the regenerative process. METHODS: The dermal micro-grafts were obtained from mechanical disaggregation of small pieces of skin tissue through a medical device called Rigeneracons...
October 13, 2016: Stem Cell Reviews
Nasrul Wathoni, Keiichi Motoyama, Taishi Higashi, Maiko Okajima, Tatsuo Kaneko, Hidetoshi Arima
A wound dressing is one of the essential approaches for preventing further harm to cutaneous wounds as well as promoting wound healing. Therefore, to achieve ideal wound healing, the development of advanced dressing materials is necessary. Recently, we revealed that a novel megamolecular polysaccharide, sacran, has potential properties as a biomaterial in a physically cross-linked hydrogel film (HGF) for wound dressing application. In this study, to enhance the wound-healing properties of sacran hydrogel film (Sac-HGF) further, we fabricated and characterized novel Sac-HGFs containing cyclodextrins (CyDs)...
October 6, 2016: International Journal of Biological Macromolecules
Xiaoju Wang, Fang Cheng, Jun Liu, Jan-Henrik Smått, David Gepperth, Mika Lastusaari, Chunlin Xu, Leena Hupa
Biocomposites of copper-containing mesoporous bioactive glass (Cu-MBG) and nanofibrillated cellulose (NFC) were designated as potential dressing material for chronic wound healing. The phase composition and mesoporous micro-structure of the synthesized Cu-MBGs were elaborately characterized by combining several techniques, including TEM, SEM, XRD, SXAS and N2 physisorption. High bioactivity of the Cu-MBG was confirmed in stimulated body fluids in vitro. A controlled dissolution of Cu from the glass suggests Cu-MBG a suitable source for Cu release in wound healing dressings...
September 16, 2016: Acta Biomaterialia
Ana A Aldana, Gustavo A Abraham
The development of biomimetic highly-porous scaffolds is essential for successful tissue engineering. Electrospun nanofibers are highly versatile platforms for a broad range of applications in different research areas. In the biomedical field, micro/nanoscale fibrous structures have gained great interest for wound dressings, drug delivery systems, soft and hard-tissue engineering scaffolds, enzyme immobilization, among other healthcare applications. In this mini-review, electrospun gelatin-based scaffolds for a variety of tissue engineering applications, such as bone, cartilage, skin, nerve, and ocular and vascular tissue engineering, are reviewed and discussed...
September 15, 2016: International Journal of Pharmaceutics
Javad Tavakoli
Wound healing as a complex biological process greatly affects the quality of patients׳ lives. The high initial cost of wound treatment using advanced wound dressing is a major concern that warrants more attention. Because of the similarities between body macromolecules and polysaccharides and proteoglycans, gelatin and starch were used extensively as wound dressings; however their solubility in aqueous environment is known as a major drawback. Crosslinking, as a common method for enhancing mechanical properties, has its own limitation as some chemical cross-likers reduce biocompatibility...
September 9, 2016: Journal of the Mechanical Behavior of Biomedical Materials
Sean McMahon, Robert Kennedy, Patrick Duffy, Jeddah Marie Vasquez, J Gerard Wall, Hongyun Tai, Wenxin Wang
A multifunctional branched copolymer was synthesized by Reversible Addition-Fragmentation Chain Transfer polymerization (RAFT) of poly(ethylene glycol) diacrylate (PEGDA Mn = 575) and poly(ethylene glycol) methyl methacrylate (PEGMEMA Mn = 500) at a feed molar ratio of 50:50. Proton nuclear magnetic resonance spectroscopy ((1)H NMR) confirmed a hyperbranched molecular structure and a high degree of vinyl functionality. An in situ cross-linkable hydrogel system was generated via a "click" thiol-ene-type Michael addition reaction of vinyl functional groups from this PEGDA/PEGMEMA copolymer system in combination with thiol-modified hyaluronic acid...
October 12, 2016: ACS Applied Materials & Interfaces
M Iqbal H Khan, Jahid M M Islam, Wasifa Kabir, Ataur Rahman, Maria Mizan, M Fizur Rahman, Jakia Amin, Mubarak A Khan
Bio-active bi-layer thin film having both bio-adhesive and non-adhesive end composed of polyvinyl alcohol (PVA) and gelatin/chitosan/polyethylene glycol (PEG) blend was developed for biomedical applications especially as an alternative of advanced tissue scaffold. The developed composite film was subjected to mechanical, thermal and physico-chemical characterization such as tensile strength (TS) and elongation at break (Eb), differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), fluid drainage capacity and biocompatibility...
December 1, 2016: Materials Science & Engineering. C, Materials for Biological Applications
Ralph S DaCosta, Kathryn Ottolino-Perry, Jaideep Banerjee
An effective, scientifically validated, diagnostic tool helps clinicians make better, timely, and more objective medical decisions in the care of their patients. Today, the need for such tools is especially urgent in the field of wound care where patient-centric care is the goal, under ever tightening clinical budget constraints. In an era of countless "innovative" treatment options, that is, advanced dressings, negative pressure devices, and various debridement instruments available to the wound care clinical team, one area that has arguably languished in the past decade has been innovation in wound diagnostics...
August 1, 2016: Advances in Wound Care
Laura E Dickinson, Sharon Gerecht
Skin regeneration requires the coordinated integration of concomitant biological and molecular events in the extracellular wound environment during overlapping phases of inflammation, proliferation, and matrix remodeling. This process is highly efficient during normal wound healing. However, chronic wounds fail to progress through the ordered and reparative wound healing process and are unable to heal, requiring long-term treatment at high costs. There are many advanced skin substitutes, which mostly comprise bioactive dressings containing mammalian derived matrix components, and/or human cells, in clinical use...
2016: Frontiers in Physiology
Philipp T Kühn, Thomas L Meijer, Irene Schiavon, Mathijs van Poll, Joris van Aken, Swen Groen, Roel Kuijer, Theo G van Kooten, Patrick van Rijn
Biopolymers are an attractive class of compounds for being used in biomedical applications as they are widely available from biomass. Their drawback is the lack of mechanical stability and the ability to tune this properly. Covalent chemical cross-linking is an often used approach but it limits usability due to legislation as well as the need of advanced and specialized knowledge by end users such as clinicians. Here, increased and tunable mechanical properties are achieved of alginate-based hydrogels with non-covalent approaches using linear polyethyleneimine (LPEI) as a polyelectrolyte rather than only multivalent metal ions (Ca(2+) )...
November 2016: Macromolecular Bioscience
Christina Lindholm, Richard Searle
Treatment of wounds of different aetiologies constitutes a major part of the total health care budget. It is estimated that 1·5-2 million people in Europe suffer from acute or chronic wounds. These wounds are managed both in hospitals and in community care. The patients suffering from these wounds report physical, mental and social consequences of their wounds and the care of them. It is often believed that the use of wound dressings per se is the major cost driver in wound management, whereas in fact, nursing time and hospital costs are together responsible for around 80-85% of the total cost...
July 2016: International Wound Journal
Edward W Swanson, Hsu-Tang Cheng, Srinivas M Susarla, Denver M Lough, Anand R Kumar
BACKGROUND: Despite advances in surgical technique, ventral hernia repair (VHR) remains associated with significant postoperative wound complications. OBJECTIVE: A systematic review and meta-analysis was performed to identify whether the application of negative pressure wound therapy to closed incisions (iNPWT) following VHR reduces the risk of postoperative wound complications and hernia recurrence. METHODS: The PubMed/MEDLINE, EMBASE and SCOPUS databases were searched for studies published through October 2015...
2016: Plastic Surgery
Pornprom Muangman, Banjerd Praditsuktavorn, Kusuma Chinaroonchai, Chomchark Chuntrasakul
Technological advancement has assisted in developing various availabilities of wound products that help in not only in healing and preventing infection but also in providing patients' comfort and pain reduction during application. However, most of advanced wound healing products in Thailand were imported at high costs to patients. Nowadays, there are increased numbers of local researches of herbs that could provide healing environment for successful wound care. Herbal wound products are currently being introduced as alternatives to those imported dressings...
September 2016: International Journal of Lower Extremity Wounds
Zeynep Karahaliloglu, Ebru Kilicay, Emir Baki Denkbas
Antimicrobial mixed dressings have traditionally been used to minimize bacterial infection of burns and other wounds. This study presents the advancement of biocompatible chitosan/silk sericin (CHT/SS) scaffolds combined with lauric acid (LA) and zinc oxide nanoparticles (nZnO) for the successful wound dressing applications. Antibacterial assay results showed that the diameters of the inhibition zone increased from 2 ± 0.4 to 7 ± 0.1 mm for Escherichia coli, as well as from 2.5 ± 0.2 to 6 ± 0...
July 9, 2016: Artificial Cells, Nanomedicine, and Biotechnology
Subhamoy Das, Gunjan Singh, Marjan Majid, Michael B Sherman, Somshuvra Mukhopadhyay, Catherine S Wright, Patricia E Martin, Andrew K Dunn, Aaron B Baker
Chronic wounds represent a major healthcare and economic problem worldwide. Advanced wound dressings that incorporate bioactive compounds have great potential for improving outcomes in patients with chronic wounds but significant challenges in designing treatments that are effective in long-standing, nonhealing wounds. Here, an optimized wound healing gel was developed that delivers syndecan-4 proteoliposomes ("syndesomes") with fibroblast growth factor-2 (FGF-2) to enhance diabetic wound healing. In vitro studies demonstrate that syndesomes markedly increase migration of keratinocytes and fibroblasts isolated from both nondiabetic and diabetic donors...
September 2016: Advanced Healthcare Materials
Linda L Benskin
Patients with acute wounds often delay seeking medical assistance until an incapacitating infection has developed. When such patients come for help at a remote Christian clinic in northern Ghana, West Africa, the goals of care are to resolve and prevent a return of infection, decrease pain, enable an immediate return to normal activities, and facilitate healing. Because the local protocol of care, Edinburgh University Solution of Lime (EUSOL)-soaked gauze, did not meet these goals, the author tried using a variety of donated wound dressing regimens...
June 2016: Ostomy/wound Management
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