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Colloidal silver gel and betadine are effective against infections - healing practice

Colloidal silver gel and betadine are effective against infections – healing practice

Betadine and Colloidal silver gel for wound infections

both of Colloidal silver gel As well as from topical betadine disinfectant Known for its effectiveness Kill infectious bacteria Thus it is suitable for disinfecting wounds. A current study now shows that the effect of these two factors complement each other together, so that the overall effect is stronger than the individual effect.

looking for Association of Professionals in Infection Control in Arlington, Washington, that a Combination of Betadine and Colloidal Silver Gel It inhibits the growth of common infectious bacteria more effectively than any agent alone. The results were recently published inAmerican Journal of Infection Control” Foot.

Wound infections are still a medical problem

size wounds heavy burns vulnerable to this penetration of microorganisms. In addition, there is a risk in wounds that biofilms will adhere to the wound surface and delays healing or even prevent it.

“Despite significant advances in wound management and supportive care, wound infection remains a serious problem, particularly in large burns”One of the study authors explains Dr. Jonathan Koppel.

According to him, this is The first studywhich systematically evaluated the use of betadine alone versus colloidal silver gel alone, and betadine with colloidal silver gel for bacteria removal and biofilm growth.

Silver enhances the effect of betadine

Betadine Antiseptic is widely used to treat and prevent wound infections because it has a broad spectrum of antimicrobial activity. However, the treatment is not effective against some bacteria.

Therefore, dressings, some of which contain silver, have long been used to support the treatment and prevention of wound infections. Practice has already suggested at this point that silver It uses a different mechanism to kill microorganisms than betadine.

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What is checked?

The surrounding team d. So Kopel compared the effectiveness of a 5% betadine solution alone and that of colloidal silver (Ag) gel alone with one Mixture of 5% Betadine solution with Ag gel.

The agents have been used against five bacterial strains often responsible for wound infections, including

  • Staphylococcus aureus (Staphylococcus aureus),
  • Pseudomonas aeruginosa (P.aeruginosa),
  • Klebsiella pneumoniae (K. pneumoniae),
  • Staphylococcus epidermidis (S. Epidermidis),
  • Methicillin-resistant Staphylococcus aureus (MRSA).

The researchers soaked cellulose paper in the three test solutions and applied them to biofilms specific to bacterial strains, which previously had 24 hours to spread. Then, using standard tests and imaging, the working group examined how effective the three agents were at repelling bacteria.


The evaluation showed the following results:

  • The use of 5 percent betadine alone was able to inhibit four of the five bacterial cultures by about 90 percent. However, in P. aeruginosa, betadine showed little or no efficacy at best.
  • Ag-Gel alone inhibited bacteria growth by 100 percent in four of the five bacterial strains. Only against K. pneumoniae was the colloidal silver gel less effective.
  • The combination of betadine and Ag gel resulted in complete inactivation of all five tested bacterial strains.

Colloidal silver works differently than betadine

The results support the theory that colloidal silver has a different bactericidal mechanism than betadine. “This study provides important new insights that could help improve infection prevention and treatment to reduce this burden.”, summarizes Linda Dickey, president of the Association of Infection Control Professionals. (FP)

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Author and source information

This text conforms to specifications in the medical literature, clinical guidelines and current studies and has been examined by medical professionals.


Graduate Editor (FH) Volker Plasek


  • Fat Tran Jonathan Koppel, Keaton Luth, et al: In vitro efficacy of a betadine antiseptic solution and colloidal silver gel mixture in inhibiting the growth of bacterial biofilms; In: American Journal of Infection Control (2022),
  • Society of Infection Control Professionals: A new study shows that the combination of betadine and colloidal silver gel effectively kills infection-causing bacteria (Published: 08/11/2022),

important note:
This article contains general advice only and should not be used for self-diagnosis or treatment. It cannot replace a visit to the doctor.