| Customization: | Available |
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| Certification: | FDA, ISO13485 |
| Type: | Surgical Supplies Materials |
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Medical adhesive antibacterial silver ion calcium alginate wound dressing
Product Description
Silver Alginate Dressing is a non-woven pad composed of calcium alginate and silver particles. The silver content is 50µg/100 cm2. The silver particles are in the form of encapsulated metallic silver, which is very stable and won't be oxidized even on exposure to light.
LUOFUCON® Silver Alginate Dressing is proved to have broad spectrum antibacterial effect , based on in vitro laboratory testing.
1. Silver Release
Figure1 shows that Silver Alginate Dressing leaches about 57% of the total silver during the first 24 hours, and 30%, 24% of its total silver during 24-48, 48-72 hours, respectively.
The release profiles indicates that the release of silver from the dressing is well controlled.Note:
Two pieces of the dressing in the size of 10 x 10 cm were used in this test. The test was performed by China National Analytical Center at Guangzhou.
2. Antibacterial Activity
2.1 Comparative Test
One representative Gram-positive bacteria(Staphylococcus aureus) and one representative Gram-negative bacteria(Pseudomonas aeruginosa) were tested under AATCC 100-2004.
Figure 2 and Figure 3 show Silver Alginate Dressing has four log reduction (99.99%)for both organisms, the other two products only have three log reduction (99.9%).
Figure 2 Log Reduction - Staphylococcus aureus Figure 3 Log Reduction - Pseudomonas aeruginosa
Note: Comparison 1 and 2 are other silver alginate dressings in the market. The test was performed by our own laboratory.
2.2 Antibacterial Effectiveness Test
AATCC 100-2004 only specifies the use of one Gram-positive and one Gram-negative bacteria. However, we tested six clinical-relevant bacteria ( 3 Gram-positive and 3 Gram-negative bacteria) for the evaluation of antibacterial effectiveness.
Test Organism |
Test Method | |
| Enterococcus faecalis | ATCC 29219 | Dressing specimens and controls were tested under simulated use conditions for seven days. During this time, test articles were kept moistened daily with phosphate buffered water containing 10% Fetal Bovine Serum to simulate daily use. The antibacterial activity testing was performed with an inoculum challenge of more than 106 CFU total. |
| Escherichia coli | ATCC 8739 | |
| Klebsiella pneumoniae | ATCC 4352 | |
| Pseudomonas aeruginosa | ATCC 9027 | |
| Staphylococcus aureus | ATCC 6538 | |
| Streptococcus pyogenes | ATCC 19615 | |
Foryou Medical
1 Day |
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| Replicate 1 | Replicate 2 | Replicate 3 | |
| Staphylococcus aureus | >4.0 | >4.1 | >4.1 |
| Streptococcus pyogenes | >4.4 | >4.4 | >4.3 |
| Enterococcus faecalis | >4.3 | >4.2 | >4.3 |
| Escherichia coli | >4.2 | >4.2 | >4.13 |
| Klebsiella pneumoniae | >4.1 | >4.0 | >4.1 |
| Pseudomonas aeruginosa | >4.1 | >4.1 | >4.1 |
7 Day |
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| Replicate 1 | Replicate 2 | Replicate 3 | |
| Staphylococcus aureus | >4.0 | >4.0 | >4.0 |
| Streptococcus pyogenes | >4.1 | >4.1 | >4.1 |
| Enterococcus faecalis | 2.1 | 1.6 | 2.6 |
| Escherichia coli | >4.3 | >4.3 | >4.3 |
| Klebsiella pneumoniae | >4.2 | >4.2 | >4.2 |
| Pseudomonas aeruginosa | >4.0 | >4.0 | >4.0 |
Our Company Advantages
1. Group company more than 40,000 staffs
2. FDA approved company
3. 11 years OEM&ODM experience
4. Strong R&D team,more than 40 staffs
5. Professional and strict quality control team more than 20 staffs
6. Have own core technology
7. Others
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