scholarly journals Validation of Three Different Sterilization Methods of Tilapia Skin Dressing: Impact on Microbiological Enumeration and Collagen Content

2020 ◽  
Vol 7 ◽  
Author(s):  
Ahmed Ibrahim ◽  
Dalia Hassan ◽  
Noura Kelany ◽  
Saber Kotb ◽  
Mahmoud Soliman
Keyword(s):  
Cellular Structure ◽  
Microbial Growth ◽  
Structural Integrity ◽  
Povidone Iodine ◽  
Biochemical Properties ◽  
Chlorhexidine Gluconate ◽  
Collagen Content ◽  
Microbial Count ◽  
Fish Skin ◽  
Biological Dressing

Tilapia fish skin has demonstrated promise as a stable and practical biological dressing to be used in wound and burn management. However, the appropriate sterilization technique of the Tilapia fish skin is crucial before its clinical application. The standard sterilization technique must eliminate harmful pathogens but maintain the structural and biochemical properties that could compromise the dressing function. This study investigated and compared the efficiency of three sterilizing agents; chlorhexidine gluconate 4% (CHG), povidone iodine 10% (PVP-I), and silver nanoparticles (25 μg/mL) (AgNPs), at three different times (5, 10, and 15 min) on Tilapia fish skin based on the microbial count, histological and collagen properties. Among the sterilization procedures, AgNPs showed rapid and complete antimicrobial activity, with a 100% reduction in microbial growth of the fish skin throughout the treated times. Furthermore, AgNPs did not impair the cellular structure or collagen fibers content of the fish skin. However, CHG and PVP-I caused alterations in the collagen content. This study demonstrated that the AgNPs treatment of Tilapia fish skin provided sterile skin while preserving the histological properties and structural integrity. These findings provide an efficient and quick sterilization method suitable for Tilapia fish skin that could be adopted as a biological dressing.

scholarly journals Validation of three different sterilization methods of Tilapia skin dressing: impact on microbiological enumeration and collagen content

2020 ◽  
Author(s):  
Ahmed Ibrahim ◽  
Dalia Hassan ◽  
Noura Kelany ◽  
Saber Kotb ◽  
Mahmoud Soliman
Keyword(s):  
Cellular Structure ◽  
Microbial Growth ◽  
Structural Integrity ◽  
Povidone Iodine ◽  
Biochemical Properties ◽  
Chlorhexidine Gluconate ◽  
Collagen Content ◽  
Microbial Count ◽  
Fish Skin ◽  
Biological Dressing

Abstract Background Tilapia fish skin has demonstrated promise as a stable and practical biological dressing to be used in wound and burn management. However, the appropriate sterilization technique of the Tilapia fish skin is crucial before its clinical application. The standard sterilization technique must eliminate harmful pathogens but maintain the structural and biochemical properties that could compromise the dressing function. This study investigated and compared the efficiency of three sterilizing agents; chlorhexidine gluconate 4% (CHG), povidone iodine 10% (PVP-I), and silver nanoparticles (25 µg/mL) (AgNPs), at three different times (5, 10, and 15 min) on Tilapia fish skin based on the microbial count, histological and collagen properties. Results Among the sterilization procedures, AgNPs showed rapid and complete antimicrobial activity, with a 100% reduction in microbial growth of the fish skin throughout the treated times. Furthermore, AgNPs did not impair the cellular structure or collagen fibers content of the fish skin. However, CHG and PVP-I caused alterations in the collagen content. Conclusion This study demonstrated that the AgNPs treatment of Tilapia fish skin provided sterile skin while preserving the histological properties and structural integrity. These findings provide an efficient and quick sterilization method suitable for Tilapia fish skin that could be adopted as a biological dressing.

scholarly journals Removal of Aerosolized Contaminants from Working Canines via a Field Wipe-Down Procedure

Animals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 120
Author(s):  
Erin B. Perry ◽  
Dakota R. Discepolo ◽  
Stephen Y. Liang ◽  
Eileen K. Jenkins
Keyword(s):  
Povidone Iodine ◽  
Chlorhexidine Gluconate ◽  
Evidence Based ◽  
Contaminant Removal ◽  
Cross Contamination ◽  
Fourth Quadrant ◽  
Prior Work ◽  
Chemical Contaminants ◽  
Fluorescent Marker ◽  
Labrador Retrievers

Evidence-based canine decontamination protocols are underrepresented in the veterinary literature. Aerosolized microbiological and chemical contaminants can pose a risk in deployment environments highlighting the need for improved canine field decontamination strategies. Prior work has established the efficacy of traditional, water-intensive methods on contaminant removal from the coat of the working canine; however, it is not known if similar reductions can be achieved with simple field expedient methods when resources are limited. The objective of this study was to measure the reduction of aerosolized contamination via a practical “wipe-down” procedure performed on working canine coats contaminated with a fluorescent, non-toxic, water-based aerosol. Disposable, lint-free towels were saturated with one of three treatments: water, 2% chlorhexidine gluconate scrub (CHX), or 7.5% povidone-iodine scrub (PVD). Both CHX and PVD were diluted at a 1:4 ratio. Treatments were randomly assigned to one of three quadrants established across the shoulders and back of commonly utilized working dog breeds (Labrador retrievers, n = 16; German shepherds, n = 16). The fourth quadrant remained unwiped, thus serving as a control. Reduction in fluorescent marker contamination was measured and compared across all quadrants. PVD demonstrated greater marker reduction compared to CHX or water in both breeds (p < 0.0001). Reduction was similar between CHX or water in Labradors (p = 0.86) and shepherds (p = 0.06). Effective wipe-down strategies using common veterinary cleansers should be further investigated and incorporated into decontamination practices to safeguard working canine health and prevent cross-contamination of human personnel working with these animals.

scholarly journals 10% povidone-iodine versus 2% chlorhexidine gluconate for Periurethral cleansing before catheterization among hospitalized patients: A randomized controlled trial

2019 ◽  
Author(s):  
elham vahabi ◽  
somayeh ghafari ◽  
somayeh haghighat
Keyword(s):  
Randomized Controlled Trial ◽  
Povidone Iodine ◽  
Controlled Trial ◽  
Chlorhexidine Gluconate ◽  
Hospitalized Patients ◽  
Time Intervals ◽  
Randomized Controlled ◽  
Significant Difference ◽  
Tract Infections ◽  
Urine Specimens

Abstract Background There are evidences that periurethral cleaning by antiseptics before catheterization decreases the risk of urinary tract infections. The purpose of this study was to Comparing 10% povidone-iodine and chlorhexidine gluconate (CHG) effectiveness in periurethral cleaning before catheterization on bacteriuria and pyuria in hospitalized patients. Methods A randomized controlled trial was used, and subjects were randomly allocated to either the 10% povidone -iodine group or the 2% chlorhexidine gluconate group. Urine specimens for culture and Analyse were collected 3 times for each subject within 5 days. Results Overall, 216 urine samples were collected in 72 subjects .There were no significant difference in results of bacteriuria of two groups immediately, 72 hrs. and 5 days after catheterization (p>0.05). There was no significant difference between two groups regarding positive pyuria immediately after sampling (p>0.05). Although its amount was significantly higher 72 hrs and 5days after catheterization in 10% povidone-iodine group than 2% chlorhexidine gluconate (p<0.05). In order to evaluate average of micro-organism in different time intervals between two groups Mann– Whitney test was used. This test showed that there was no significant difference of number of time intervals (p>0.05). Conclusions The results of this study showed that using 2% chlorhexidine gluconate reduced the amount of bacteriuria in catheterazied patients compared to 10% povidone-iodine. However this difference was not significant. Therefore doing more studies with more number of samples in this field is suggested. Trial registration: Retrospectively registered. IRCT20170712035044N2 Key words: 10% povidone-iodine- 2% chlorhexidine gluconate - Bacteriuria- Periurethral cleansing

scholarly journals Vascular Catheter Site Care: The Clinical and Economic Benefits of Chlorhexidine Gluconate Compared with Povidone Iodine

2003 ◽  
Vol 37 (6) ◽  
pp. 764-771 ◽  
Author(s):  
Nathorn Chaiyakunapruk ◽  
David L. Veenstra ◽  
Benjamin A. Lipsky ◽  
Sean D. Sullivan ◽  
Sanjay Saint
Keyword(s):  
Povidone Iodine ◽  
Economic Benefits ◽  
Chlorhexidine Gluconate ◽  
Catheter Site
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