This study aims to synthesize silver nanoparticles using an extract from the seagrape Caulerpa lentillifera and test their antibacterial properties. It has 3 objectives: 1) determine the bioactive components of C. lentillifera, 2) characterize silver nanoparticles synthesized with the C. lentillifera extract, and 3) determine the antibacterial activity of the silver nanoparticles and extract against Staphylococcus aureus through assays. The researchers expect that the silver nanoparticles synthesized with C. lentillifera extract will demonstrate antibacterial properties based on previous findings that C. lentillifera has antiviral, antiprotozoal, antifungal, and antibacterial properties.

1. Bioactive Components and Antibacterial Activity of Synthesized
Silver Nanoparticles and Seagrape ‘Lato’
(Caulerpa lentillifera) Extract
PROPONENTS: Nathaniel Cruz, Shyne Ledesma, Beverly Tiu
COACH: Bryant C. Acar
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2. Introduction
• The Pathogenic bacteria
Staphylococcus aureus
• The application of nanoparticles
• Seaweed such as caulerpa
lentillifera has antiviral,
antiprotozoal, antifungal, and
antibacterial properties.

3. The study aims to answer the following objectives:
1. To determine the Bioactive components of Seagrapes ( Caulerpa
lintillifera).
2. To determine the Characterization of Silver nanoparticles with
synthesized Seagrapes ( Caulerpa lintillifera) extract;
3. To determine the Antibacterial Assays through synthesized Silver
nanoparticles and Seagrapes ( Caulerpa lintillifera) and Seagrapes (
Caulerpa lintillifera) extract alone;
Research Objectives

5. Experimental Set –Up/Prototype Illustration

6. Expected Output/Impact