Porphyrin

Selective oxidation of 2-naphthol to 2-hydroxy-1,4-naphthoquinone with hydrogen peroxide catalyzed by 5,10,15, 20-tetrakis(p- sulfonato-phenyl)porphinatomanganese(III) chloride in aqueous solution. M. Hassanein*, S. El-Khalafy , S. Shendy Tanta University, Faculty of Science, Department of Chemistry, Tanta 31527, Egypt. Abstract 2-Naphthol has been selectively oxidized to 2-hydroxy-1,4-naphthoquinone (HNQ, Lawsone) with hydrogen peroxide in presence of 5, 10, 15, 20-tetrakis-(p-sulfonatophenyl)porphinatomanganese

Introduction In the past century extensive research has been conducted on porous organometallic compounds for use in various material applications. Although numerous compounds containing Lewis bases, such as nitriles and bipyridines and have been reported to be successful at the sorption of small molecules, the desorption of the guest often leads to structural collapse of the host. 1,2 Metal-organic frameworks (MOFs) have shown to be a valuable class of newer materials that can support permanent

chain in chloroplast while in the mitochondria, the electron transport chain releases NADH. 3. What is the function of the Magnesium atom in a chlorophyll molecule? The Magnesium atom in a chlorophyll molecule can be seen in the center of the porphyrin ring (the head that is light absorbent) of a chlorophyll molecule. Therefore, it would make sense that the magnesium atom aids the molecule in absorbing light energy as photons with

Introduction This research experiment will fundamentally focus on the activity of catalase, an enzyme that can be found in nearly every living organism. The essential function of catalase is to decompose hydrogen peroxide to produce water and oxygen. This enzyme also plays a major role within the protection of the cell from the oxidative damage that the reactive oxygen species are capable of causing. In addition, catalase is known to have the ability of chemically converting substrates such as

Photodynamic Therapy refers to therapy that is used against cancer. This therapy has been used since around the 1930s and helps to eradicate the cancer without destroying normal cells. This paper explores the biomechanics of this process and incorporates a look at how this process can also be used to destroy bacteria. Photodynamic therapy is also referred to as photodynamic action, which refers to photosensitized reactions. 1 This reactions involve exciting oxygen in the cell, which then becomes

In the world of medical science, there are gray areas that blur subtly into the world of fiction. When medical anomalies came up throughout history, the world had come to its own conclusions about what was wrong before medical science could determine the true causes. This, in turn, has led to some interesting connections between fictional ideas and medical cases that are very real. One of these such disorders is called porphyria, and it heavily influenced the way vampires were perceived in both literature

HOW CAN HYDROEGEN BOND LEADS TO FIVE PROPRTIES OF WATER? Liquid water is exceptional in having approximately as many hydrogen bonds as it has covalent bonds. Shown right is the number of hydrogen bonds per water molecule as the temperature rises with the line-width showing the approximate disparity between different experimental methods. Although there are reports of water having more than four hydrogen bonds these hydrogen bonds cannot be spatially accommodated around the central water molecule

Kiersten Swarts Mrs. Walser Bio II 8/30/15 Periphylla Periphylla: Helmet Jellyfish The helmet jellyfish, scientifically known as periphylla periphylla has many interesting features and many unique facts about it. When just looking at it, it resembles many jellyfish, the bell is different from a regular jellyfish though. It has a life cycle that contains fourteen stages that explain how it is formed and how it develops. Not much is known about this creature when it comes to reproduction and its behavior

Catalase and Hydrogen Peroxide Experiment How do living cells interface with the earth around them? Every living thing have impetuses, or substances inside of them that accelerate concoction responses and procedures. Proteins are atoms that empower the substance responses that happen in every single living thing on earth. In this catalase and hydrogen peroxide test, we will find how compounds go about as impetuses by bringing on synthetic responses to happen all the more rapidly inside of living

Phytochemicals and plant derived nutrients are gaining much importance nowadays because of their less toxicity and high biological efficacy. Many of such kind are commercially available. But most of them lack clinical backgrounds. One such product with clinical background is Chlorophyll juice extract powder. The Juice extract powder of chlorophyll poses many valuable potent medicinal properties. The article focuses on the use of chlorophyll juice powder for maintaining the normal pH of the body.