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Updated: May 28, 2026

Evaluation of Antimicrobial Activities of Nanoparticles and Nanostructured Surfaces In Vitro
Published on: April 21, 2023
1-hexyl-2-cyanoacrylate compound (Neucrylate) bactericidal properties
Peter Friedman1, Violeta Casillas, Charles W Kerber
1Valor Medical Inc, San Diego, California 92121, USA. pfriedman@valormedical.com
This study investigated Neucrylate, a modified cyanoacrylate tissue adhesive, for its antibacterial properties. Neucrylate demonstrated significant effectiveness against gram-positive bacteria, suggesting potential for infection prevention in medical devices.
Area of Science:
- Biomaterials Science
- Microbiology
- Medical Device Development
Background:
- Medical-grade tissue adhesives are crucial for surgery and trauma care.
- A modified cyanoacrylate (Neucrylate) was developed as an intravascular embolic agent.
- There is a need for implantable medical devices that inhibit hospital-acquired infections.
Purpose of the Study:
- To evaluate the antibacterial efficacy of Neucrylate.
- To determine Neucrylate's impact on common bacterial strains.
Main Methods:
- Seven common bacterial cultures were grown.
- Bacteria were exposed to Neucrylate.
- Microscopic and fluorescence analyses assessed the impact on bacteria.
Main Results:
- Neucrylate exhibited a strong antibacterial effect against gram-positive bacteria.
- A modest antibacterial effect was observed against gram-negative bacteria.
Conclusions:
- Neucrylate possesses significant antibacterial properties against gram-positive bacteria.
- Further research may explore Neucrylate's potential in preventing infections associated with medical devices.
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The IUPAC and common names of amides are derived from the parent carboxylic acid, by replacing the suffix “oic acid” and “ic acid,” respectively, with “amide.” In the following example, the IUPAC name ethanamide is derived from ethanoic acid, and the common name, acetamide, is obtained from acetic acid.
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The acidic strength of hydrocarbons follows the order: Alkynes > Alkenes > Alkanes. The strength of an acid is commonly expressed in units of pKa — the lower the pKa, the stronger the acid. Among the hydrocarbons, terminal alkynes have lower pKa values and are, therefore, more acidic. For example, the pKa values for ethane, ethene, and acetylene are 51, 44, and 25, respectively, as shown here.