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https://www.readbyqxmd.com/read/29032975/comparison-of-non-surgical-methods-for-the-treatment-of-deep-partial-thickness-skin-burns-of-the-hand
#1
Ernest Zacharevskij, Gytis Baranauskas, Karolis Varkalys, Rytis Rimdeika, Darius Kubilius
This paper describes a randomized, controlled, parallel-group, single-center clinical trial designed to compare non surgical treatment methods of deep partial thickness skin burns of the hand. All patients were scanned with the Laser Doppler Imaging device to determine the depth of the burn wound. Viable keratinocytes sites were determined according to the established Perfusion Units (PU) measurement system. The trial enrolled 87 patients with hand burn wounds in the section of 260-600PU. Hand burn patients were divided into the following four groups: treated with hydrocolloid dressings; treated with mechanical debridement of monofilament polyester fibers pad and then applying silver sulfadiazine; treated with gauze dressings containing enzymatic collagenase preparation...
October 9, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28979327/fabrication-and-physicochemical-investigation-of-ancient-iranian-and-pakistani-treated-silver-particles-and-their-comparison-with-silver-nanoparticles
#2
Soheyla Honary, Alireza Mozaffari Dehshiri, Mahmoud Mosaddegh
Silver compounds are known to be both toxic and carcinogenic. However, silver nanoparticles have been showed diagnostic and therapeutic value. They can be used as biological tags for a quantitative detection and/or be incorporated into wound dressings and cosmetics due to their antibacterial properties. Pakistani and Iranian traditional physicians still take the advantage of silver compounds, called silver Kushta, to treat dementia, leprosy, and skin cancers. The present study compared the physicochemical properties of silver nanoparticles (AgNPs) and silver Kushtas (Pakistani silver Kushta (PKAg) and Iranian silver) in terms of the morphology, silver content, chemical composition, and suspension stability...
2017: Iranian Journal of Pharmaceutical Research: IJPR
https://www.readbyqxmd.com/read/28974093/silver-inlaid-with-gold-nanoparticle-chitosan-wound-dressing-enhances-antibacterial-activity-and-porosity-and-promotes-wound-healing
#3
Qing Li, Fei Lu, Guofang Zhou, Kun Yu, Bitao Lu, Yang Xiao, Fangying Dai, Dayang Wu, Guangqian Lan
Silver inlaid with gold nanoparticles (Au-Ag NPs) prepared by using egg white with an average sized of 10 nm and homogeneous dispersion were tested and presented red fluorescence. Au-Ag NPs were loaded into chitosan as wound dressing (CS-Au-Ag). CS-Au-Ag released silver ions faster, in higher amount, and in a more durable manner than chitosan dressing loaded with silver nanoparticles with the same silver content (CS-Ag), consequently, showing enhanced antibacterial activity. Cytotoxicity tests indicated that CS-Au-Ag showed low cytotoxicity to L929 cells similar to CS-Ag...
October 11, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28934124/n-halamine-biocidal-materials-with-superior-antimicrobial-efficacies-for-wound-dressings
#4
Buket Demir, Roy M Broughton, Mingyu Qiao, Tung-Shi Huang, S D Worley
This work demonstrated the successful application of N-halamine technology for wound dressings rendered antimicrobial by facile and inexpensive processes. Four N-halamine compounds, which possess different functional groups and chemistry, were synthesized. The N-halamine compounds, which contained oxidative chlorine, the source of antimicrobial activity, were impregnated into or coated onto standard non-antimicrobial wound dressings. N-halamine-employed wound dressings inactivated about 6 to 7 logs of Staphylococcus aureus and Pseudomonas aeruginosa bacteria in brief periods of contact time...
September 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28929069/our-experience-of-treating-wide-spectrum-of-external-ear-canal-atresia-of-different-etiologies-in-pediatric-patients
#5
Kranti Bhavana
External auditory canal atresia (EACA) is a common otologic condition. Etiology can vary from congenital to acquired causes. It causes considerable difficulty to the patient. Bilateral ear canal atresia in children can lead to speech delays due to hearing impairment caused by this condition. Though easily diagnosed it is one of the most difficult conditions to treat. Acquired conditions can affect any age group. Restenosis following treatment is very common. This article focuses on the treatment of EACA due to different etiologies and emphasizes on special points of surgical treatment and follow up...
September 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/28914681/randomized-controlled-trial-comparing-collagen-oxidized-regenerated-cellulose-silver-to-standard-of-care-in-the-management-of-venous-leg-ulcers
#6
Breda M Cullen, Thomas E Serena, Molly C Gibson, Robert J Snyder, Jason R Hanft, Raphael A Yaakov
OBJECTIVE: To assess healing outcomes in venous leg ulcers (VLUs) treated with a combination of collagen, oxidized regenerated cellulose, and silver in conjunction with standard of care (SOC; intervention group) compared with SOC alone (control group). Standard of care included ADAPTIC nonadhering dressing (Acelity, San Antonio, Texas) and compression. DESIGN AND SETTING: Randomized controlled trial that followed patients in 3 US facilities for 12 weeks or until complete healing...
October 2017: Advances in Skin & Wound Care
https://www.readbyqxmd.com/read/28888006/chitosan-membrane-dressings-toughened-by-glycerol-to-load-antibacterial-drugs-for-wound-healing
#7
Ye Ma, Lian Xin, Huaping Tan, Ming Fan, Jianliang Li, Yang Jia, Zhonghua Ling, Yong Chen, Xiaohong Hu
Transparent and flexible chitosan-based membranes containing antibacterial drugs were prepared through a casting/solvent evaporation method from suspension of chitosan floccule. To enhance mechanical properties, glycerin was incorporated into the floccule suspension to conjugate chitosan as a plasticizer. The mechanism of membrane formation is attributed to inter- and intro-hydrogen bonding between chitosan and glycerol molecules. The results showed that incorporation of glycerol has a significant influence on the properties of the chitosan membranes...
December 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28878170/nanosilver-silica-composite-prolonged-antibacterial-effects-and-bacterial-interaction-mechanisms-for-wound-dressings
#8
Dina A Mosselhy, Henrika Granbohm, Ulla Hynönen, Yanling Ge, Airi Palva, Katrina Nordström, Simo-Pekka Hannula
Infected superficial wounds were traditionally controlled by topical antibiotics until the emergence of antibiotic-resistant bacteria. Silver (Ag) is a kernel for alternative antibacterial agents to fight this resistance quandary. The present study demonstrates a method for immobilizing small-sized (~5 nm) silver nanoparticles on silica matrix to form a nanosilver-silica (Ag-SiO₂) composite and shows the prolonged antibacterial effects of the composite in vitro. The composite exhibited a rapid initial Ag release after 24 h and a slower leaching after 48 and 72 h and was effective against both methicillin-resistant Staphylococcus aureus (MRSA) and Escherichia coli ( E ...
September 6, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28874762/cytocompatible-anti-microbial-dressings-of-syzygium-cumini-cellulose-nanocrystals-decorated-with-silver-nanoparticles-accelerate-acute-and-diabetic-wound-healing
#9
Rubbel Singla, Sourabh Soni, Vikram Patial, Pankaj Markand Kulurkar, Avnesh Kumari, Mahesh S, Yogendra S Padwad, Sudesh Kumar Yadav
The ever increasing incidences of non-healing skin wounds have paved way for many efforts on the convoluted process of wound healing. Unfortunately, the lack of relevance and success of modern wound dressings in healing of acute and diabetic wounds still remains a matter of huge concern. Here, an in situ three step approach was embraced for the development of nanocomposite (NCs) dressings by impregnating silver nanoparticles (AgNPs) onto a matrix of cellulose nanocrystals (CNCs) isolated from Syzygium cumini leaves using an environmental friendly approach...
September 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28857343/efficacy-of-a-surfactant-based-wound-dressing-on-biofilm-control
#10
Steven L Percival, Dieter Mayer, Anne-Marie Salisbury
The aim of this study was to evaluate the efficacy of both a nonantimicrobial and antimicrobial (1% silver sulfadiazine-SSD) surfactant-based wound dressing in the control of Pseudomonas aeruginosa, Enterococcus sp, Staphylococcus epidermidis, Staphylococcus aureus, and methicillin-resistant S. aureus (MRSA) biofilms. Anti-biofilm efficacy was evaluated in numerous adapted American Standards for Testing and Materials (ASTM) standard biofilm models and other bespoke biofilm models. The ASTM standard models employed included the Minimum biofilm eradication concentration (MBEC) biofilm model (ASTM E2799) and the Centers for Disease Control (CDC) biofilm reactor model (ASTM 2871)...
August 30, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28846576/blood-and-tissue-silver-levels-following-application-of-silver-based-dressings-to-sulfur-mustard-chemical-burns
#11
David J Barillo, Claire R Croutch, Frances Reid, Tara Culley, William Sosna, Julie Roseman
Silver-based dressings are commonly used in burn care. Silver sulfadiazine use is associated with elevated blood, urine, and tissue levels of silver ion. We examined wound and tissue levels of silver ion in a two-species model of sulfur mustard chemical burn injury treated with two different silver-based dressings. Superficial dermal and moderate thickness dermal chemical burns were induced in 16 hairless guinea pigs and in 16 Gottingen minipigs by exposure to sulfur mustard vapor. After debridement, silver-nylon burn dressings or silver-calcium alginate dressings were applied and changed every 7 days until wound healing or a maximum of 60 days post exposure...
September 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28826242/zinc-oxide-silver-bimetallic-nanoencapsulated-in-pvp-pcl-nanofibres-for-improved-antibacterial-activity
#12
Min Hu, Chenwen Li, Xin Li, Min Zhou, Jianbin Sun, Fangfang Sheng, Sanjun Shi, Laichun Lu
The anti-infection ability and skin regeneration are important aspects on the progress of wound healing, which needs an ideal wound dressing that not only resists bacteria but also promotes skin regeneration. In this study, zinc oxide/silver/polyvinylpyrrolidone/polycaprolactone (ZnO/Ag/PVP/PCL) nanofibres were prepared through electrospinning. Firstly, zinc oxide nanoparticles (ZnONPs) and silver nanoparticle (AgNPs) were synthesized respectively. Secondly, the two nanoparticles were mixed with polyvinylpyrrolidone (PVP) and polycaprolactone (PCL) to obtain the nanofibres...
August 21, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28804527/synthesis-and-characterisation-of-cross-linked-chitosan-composites-functionalised-with-silver-and-gold-nanoparticles-for-antimicrobial-applications
#13
Catherine Ryan, Emma Alcock, Finbarr Buttimer, Michael Schmidt, David Clarke, Martyn Pemble, Maria Bardosova
We present a study of a range of cross-linked chitosan composites with potential antimicrobial applications. They were formed by cross-linking chitosan and siloxane networks and by introducing silver and gold nanoparticles (NPs). The aim was to investigate whether adding the metal NPs to the chitosan-siloxane composite would lead to a material with enhanced antimicrobial ability as compared to chitosan itself. The composites were synthesised in hydrogel form with the metal NPs embedded in the cross-linked chitosan network...
2017: Science and Technology of Advanced Materials
https://www.readbyqxmd.com/read/28782570/nanomedicine-and-advanced-technologies-for-burns-preventing-infection-and-facilitating-wound-healing
#14
Mirza Ali Mofazzal Jahromi, Parham Sahandi Zangabad, Seyed Masoud Moosavi Basri, Keyvan Sahandi Zangabad, Ameneh Ghamarypour, Amir R Aref, Mahdi Karimi, Michael R Hamblin
According to the latest report from the World Health Organization, an estimated 265,000 deaths still occur every year as a direct result of burn injuries. A widespread range of these deaths induced by burn wound happens in low- and middle-income countries, where survivors face a lifetime of morbidity. Most of the deaths occur due to infections when a high percentage of the external regions of the body area is affected. Microbial nutrient availability, skin barrier disruption, and vascular supply destruction in burn injuries as well as systemic immunosuppression are important parameters that cause burns to be susceptible to infections...
August 4, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28781137/bioimpedance-spectroscopy-a-technique-to-monitor-interventions-for-swelling-in-minor-burns
#15
Pippa Kenworthy, Tiffany L Grisbrook, Michael Phillips, Paul Gittings, Fiona M Wood, William Gibson, Dale W Edgar
The control of edema in burn injured patients is a priority as it can impede the wound healing process. Bioimpedance spectroscopy (BIS) has been identified as a method of swelling assessment that has merit after burns. The aim of this study was to examine the reliability and validity of BIS in the measurement of localised burn wound edema across (1) different dressing conditions (no dressing, non silver and silver dressings) and (2) three electrode positions. BIS resistance (R) was hypothesised to be inversely proportional to fluid (edema) volume...
August 3, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28771993/a-pegylated-fibrin-hydrogel-based-antimicrobial-wound-dressing-controls-infection-without-impeding-wound-healing
#16
Joel Gil, Shanmugasundaram Natesan, Jie Li, Jose Valdes, Andrew Harding, Michael Solis, Stephen C Davis, Robert J Christy
Combat injuries are associated with a high incidence of infection, and there is a continuing need for improved approaches to control infection and promote wound healing. Due to the possible local and systemic adverse effects of standard 1% cream formulation (Silvadene), we had previously developed a polyethylene glycol (PEGylated) fibrin hydrogel (FPEG)-based wound dressing for the controlled delivery of silver sulfadiazine (SSD) entrapped in chitosan microspheres (CSM). In this study, we have evaluated the antimicrobial and wound healing efficacy of SSD-CSM-FPEG using a full-thickness porcine wound infected with Pseudomonas aeruginosa...
August 2, 2017: International Wound Journal
https://www.readbyqxmd.com/read/28763910/-influence-of-different-inner-dressings-in-negative-pressure-wound-therapy-on-escharectomy-wound-of-full-thickness-burn-rabbits
#17
J H Lin, J Chen, D J Xue, W X Huang, G L Su
Objective: To explore the influence of different inner dressings in negative-pressure wound therapy (NPWT) on escharectomy wound of full-thickness burn rabbits. Methods: Eighteen Japanese white rabbits were inflicted with full-thickness burn on unilateral back. They were divided into polymer dressing group (PD), biological dressing group (BD), and silver biological dressing group (SBD), according to the random number table, with 6 rabbits in each group. On 3 days post burn, the wounds were performed with escharectomy, and then wounds of rabbits in group PD were covered with polyurethane foam...
July 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28757422/combined-antibacterial-tissue-regeneration-response-in-thermal-burns-promoted-by-functional-chitosan-silver-nanocomposites
#18
E Luna-Hernández, M E Cruz-Soto, F Padilla-Vaca, R A Mauricio-Sánchez, D Ramirez-Wong, R Muñoz, L Granados-López, L R Ovalle-Flores, J L Menchaca-Arredondo, A Hernández-Rangel, E Prokhorov, J L García-Rivas, B L España-Sánchez, G Luna-Bárcenas
We report the combined antibacterial/tissue regeneration responses to thermal burns promoted by functional chitosan/silver nanocomposites (CS/nAg) with ultralow silver content (0.018wt.%, 7-30nm). Our approach allows one to produce CS/nAg nanocomposites without silver nanoparticles (nAg) agglomeration, with bactericide potency higher than 1wt.% of nAg (ca. 10nm) content and, promoting the healing process in controlled thermal burns. CS/nAg films exhibit high antibacterial activity against S. aureus and P. aeruginosa after 1...
July 28, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28750575/creation-and-evaluation-of-new-porcine-model-for-investigation-of-treatments-of-surgical-site-infection
#19
Mahsa Mohiti-Asli, Marije Risselada, Megan Jacob, Behnam Pourdeyhimi, Elizabeth G Loboa
Surgical site infection (SSI) is the most common cause of surgical failure, increasing the risks of postoperative mortality and morbidity. Recently, it has been reported that the use of antimicrobial dressings at the incision site help with prevention of SSI. Despite the increased body of research on the development of different types of antimicrobial dressings for this application, to our knowledge, nobody has reported a reliable large animal model to evaluate the efficacy of developed materials in a preclinical SSI model...
September 19, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28745283/fabrication-of-biopolymer-based-nanocomposite-wound-dressing-evaluation-of-wound-healing-properties-and-wound-microbial-load
#20
Ali Es-Haghi, Mohammad Mashreghi, Mahere Rezazade Bazaz, Masoud Homayouni-Tabrizi, Majid Darroudi
The aim of this study is to introduce natural-based polymers, chitosan and starch, to design a remedial nanocomposite, comprising of cerium oxide nanoparticles and silver nanoparticles, to investigate their effects in accelerating wound healing and in wound microbial load. Cerium oxide nanoparticles synthesized in starch solution added to the colloidal dispersion of synthesized silver nanoparticles in chitosan to make a three-component nanomaterial. Mice were anaesthetized and two parallel full-thickness round wounds were excised under aseptic conditions with the help of sterile dermal biopsy punch...
August 2017: IET Nanobiotechnology
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