Chemical Reactions, CR 1: Determining Chemical Reactions (MS), CR 1: Predicting Reactions (HS), Life Science, Physical Science, S&F 1: Cells (MS), S&F 2: Cell Function (MS), S&P 1: Atoms & Molecules (MS), S&P 1: Periodic Table Patterns (HS), S&P 4: Molecule Traits (HS), Structure & Properties of Matter, Structure and Function

Silver Dressing and Bacteria

Wound management in an era of increasing bacterial antibiotic resistance: A role for topical silver treatment(NOT OPEN ACCESS) SUMMARY: One way of fighting antibiotic resistant bacteria is to prevent them from growing in the first place. This article looks at three different types of silver dressing, intended to do just that: silver nitrate, silver sulfadiazine,… Continue reading Silver Dressing and Bacteria

Chemical Reactions, CR 1: Determining Chemical Reactions (MS), CR 1: Predicting Reactions (HS), CR 2: Energy in Reactions (HS), CR 2: Modeling Conservation of Mass (MS), CR 3: Evidence of Reactions (HS), CR 3: Testing Endo/Exothermic Reactions (MS), CR 4: Driving Reactions (HS), Non-NGSS Articles, Physical Science, S&P 1: Atoms & Molecules (MS), S&P 1: Periodic Table Patterns (HS), S&P 3: Heat & Reactions (MS), S&P 4: Molecule Traits (HS), Structure & Properties of Matter, W 1: Graphing Waves (MS), W 1: Wave Relationships (HS), W 2: Wave Behavior (MS), Waves & Electromagnetic Radiation

Beaming Pyrimidines Part 2

Thymine and Other Prebiotic Molecules Produced from the Ultraviolet Photo-Irradiation of Pyrimidine in Simple Astrophysical Ice Analogs(NOT OPEN ACCESS) SUMMARY: In the second edition of beaming pyrimidines, instead of using ammonia, scientists beamed pyrimidines with methanol, water and methanol, methane, and water and methane, at various ratios for each combination. As with “Beaming Pyrimidines Part… Continue reading Beaming Pyrimidines Part 2

Chemical Reactions, CR 1: Predicting Reactions (HS), Physical Science, S&P 2: Synthetic Materials (MS), S&P 4: Molecule Traits (HS), Structure & Properties of Matter, W 3: Digital vs Analog (MS), Waves & Electromagnetic Radiation

Nanoplastics and the Cell Membrane: A Simulation

Polystyrene Nanoparticles Perturb Lipid Membranes(NOT OPEN ACCESS) SUMMARY: This experiment used computer graphics to simulate how polystyrene nanoparticles could possibly interact with a biological membrane. This requires knowing the chemical properties of both polystyrene and the cell membrane. The simulation (called a coarse-grained molecular simulation) showed that these tiny pieces of plastic are able to… Continue reading Nanoplastics and the Cell Membrane: A Simulation

Chemical Reactions, CR 1: Predicting Reactions (HS), Life Science, M&E 2: Anabolism/Catabolism (HS), M&E 2: Metabolism (MS), M&E 3: Cellular Respiration (HS), Physical Science, S&F 1: DNA to Proteins (HS), Structure and Function

Metabolizing Acetaldehyde

Acetaldehyde production and metabolism by human indigenous and probiotic Lactobacillus and Bifidobacterium strains. (NOT OPEN ACCESS) SUMMARY: In order to turn ethanol into acetaldehyde, the enzyme alcohol dehydrogenase requires both a zinc atom and NAD+. This study looks at the levels of NAD+ in Lactobacillus and Bifidobacteria after incubating them in ethanol and acetaldehyde, in… Continue reading Metabolizing Acetaldehyde