- Marine Biology and Environmental Chemistry
- Marine and coastal plant biology
- Environmental Toxicology and Ecotoxicology
- Marine Biology and Ecology Research
- Microplastics and Plastic Pollution
- Marine Ecology and Invasive Species
- Seaweed-derived Bioactive Compounds
- Coastal wetland ecosystem dynamics
- Lichen and fungal ecology
- Marine Bivalve and Aquaculture Studies
- Bryophyte Studies and Records
- Environmental Chemistry and Analysis
- Biocrusts and Microbial Ecology
- GaN-based semiconductor devices and materials
- Organic Electronics and Photovoltaics
- Smart Materials for Construction
- Laser Material Processing Techniques
- Forensic Fingerprint Detection Methods
- Wastewater Treatment and Nitrogen Removal
- Semiconductor Lasers and Optical Devices
- Molecular Junctions and Nanostructures
- Polymer composites and self-healing
- Microbial Natural Products and Biosynthesis
- Semiconductor materials and devices
- Mycorrhizal Fungi and Plant Interactions
Soonchunhyang University
2010-2025
Institute for Basic Science
2024
Samsung (South Korea)
2009
Abstract Extracts from five Antarctic lichens (L3, Stereocaulon alpinum ; L5, Ramalina terebrata L6, Caloplaca sp.; L8, Lecanora and L17, regalis ) were tested for antimicrobial activities against several clinically important microbes by disk diffusion. The minimum inhibitory concentration (MIC) of each extract was determined a broth dilution method. L3, L6 L8 active two Gram(+) strains. B. subtilis more sensitive to lichen extracts (except L5) than S. aureus . MIC observed 36.7 ± 0.3 953.8...
The development of new antibacterial compounds is an urgent issue to meet the evolution resistivity pathogenic bacteria against available drugs. objective this study was investigate from Antarctic lichen species Ramalina terebrata. A total fi ve compounds, usnic acid, usimine A, B, C, and ramalin, were isolated by bioactivity guided-fractionation methanol extract R. terebrata after several chromatographic procedures. qualitative activities crude determined disk diffusion method while minimum...
The algal cell immobilization is a commonly used technique for treatment of waste water, production useful metabolites and management stock culture. However, control over the size immobilized droplets, population microbes, rate in current techniques need to be improved. Here, we use drop-on-demand inkjet printing immobilize spores alga Ecklonia cava within alginate microparticles first time. Microparticles with were generated by alginate-spore suspensions into calcium chloride solution. We...
Fats and phthalic acid derivatives were isolated characterised based on their spectral analysis from the antifouling activity guided fractions of n-hexane methanol extract brown alga Sargassum confusum. The fractions, as well compounds, demonstrated significant against spores a major fouling Ulva pertusa with 50–75% decrease spore attachment agar-coated slides.
The active antifouling compounds coumarin and its derivatives were isolated from the cinnamon tree Cinnamomum loureiroi. activities determined using representative soft fouling organisms: seaweed Ulvapertusa diatom Navicula annexa. chemical constituents with identified as coumarin, hydroxylcoumarin, coumaric acid, cinnamaldehyde by interpreting nuclear magnetic resonance, high-resolution mass spectroscopy data. These 1.09 g of crude sp. methanol extract, yielding approximately 18.4, 6.3,...
The macroalgal forest is being transformed to barren ground in coastal areas due climate change. Current recovery technologies are ineffective, and an understanding of the fouling mechanism macroalgae would assist restoration forests. Here, it attempted promote growth Ulva fasciata spores using artificial biofilm composed alginate silica particles (the most abundant polymers inorganics marine biofilms) by mimicking environments. presence increased average germling length spores, suggesting...