Diverse Mechanisms of Sulfur Decoration in Bacterial
... diverse biological functions. Such chemical alterations have also been observed and studied mostly on ribosomal RNA (rRNA) and some messenger RNA (mRNA) [1–3]. More than 100 RNA modifications have been discovered thus far, and the majority are found within tRNA molecules [3– 6]. Most ...
... diverse biological functions. Such chemical alterations have also been observed and studied mostly on ribosomal RNA (rRNA) and some messenger RNA (mRNA) [1–3]. More than 100 RNA modifications have been discovered thus far, and the majority are found within tRNA molecules [3– 6]. Most ...
Antioxidant Activity of Sulfur and Selenium: A Review of Reactive
... maintain metal homeostasis [71]; however, metal-mediated ROS generation and subsequent cellular damage still occur. Under normal conditions, the availability of metal ions to generate ROS is minimal due to sequestration and storage. Iron in the blood is tightly bound by transferrin, an irontransport ...
... maintain metal homeostasis [71]; however, metal-mediated ROS generation and subsequent cellular damage still occur. Under normal conditions, the availability of metal ions to generate ROS is minimal due to sequestration and storage. Iron in the blood is tightly bound by transferrin, an irontransport ...
Overview of Chlorine Dioxide (ClO )
... produces no signs of malignancy in test animals.15 ClO2 is often applied for water treatment other than disinfection, for example, remedying difficult smell and taste problems. Phenols, in particular, are quickly oxidized, and without odorous chlorophenols often produced by chlorine. ClO2 is conside ...
... produces no signs of malignancy in test animals.15 ClO2 is often applied for water treatment other than disinfection, for example, remedying difficult smell and taste problems. Phenols, in particular, are quickly oxidized, and without odorous chlorophenols often produced by chlorine. ClO2 is conside ...
Physiological and phylogenetic studies of thermophilic
... Four thermophilic hydrogen oxidizing bacteria were isolated from various hot-springs in Grensdalur, Hveragerði, SW-Iceland. The strains were investigated with respect to phylogenetics, physiology, hydrogen uptake rates, biomass yield and sulfur metabolism. Phylogenetic studies of the isolates were d ...
... Four thermophilic hydrogen oxidizing bacteria were isolated from various hot-springs in Grensdalur, Hveragerði, SW-Iceland. The strains were investigated with respect to phylogenetics, physiology, hydrogen uptake rates, biomass yield and sulfur metabolism. Phylogenetic studies of the isolates were d ...
Science behind Acid Rain: Analysis of Its Impacts and
... natural and anthropogenic sources. Industrial emissions are anthropogenic sources, and a volcano eruption is an example of a natural source. One of the most direct effects of acid rain is on aquatic ecosystems. Acid rain is the term given to increased acidity of rain due to the effects of gases (fro ...
... natural and anthropogenic sources. Industrial emissions are anthropogenic sources, and a volcano eruption is an example of a natural source. One of the most direct effects of acid rain is on aquatic ecosystems. Acid rain is the term given to increased acidity of rain due to the effects of gases (fro ...
Full-Text PDF
... any strain. Previously, we reported that cysJIH contributes to diminish ROS levels induced by the exposure to antimicrobial agents such as menadione and ceftriaxone by increasing the SOD activity, the levels of reduced thiols, and H2S. This effect was only observed when bacteria were cultured with s ...
... any strain. Previously, we reported that cysJIH contributes to diminish ROS levels induced by the exposure to antimicrobial agents such as menadione and ceftriaxone by increasing the SOD activity, the levels of reduced thiols, and H2S. This effect was only observed when bacteria were cultured with s ...
H/ t = W/m
... with oxygen to form H2O. Nitrogen ultimately forms nitrates in this combustion reaction. Since the nitrates can not exist by themselves, nitrate must combine with water vapor to form nitric acid, hence giving the overall reaction: 2N2 + 5O2 + 2H2O = 4HNO3. Cysteine and cystine both contain approxima ...
... with oxygen to form H2O. Nitrogen ultimately forms nitrates in this combustion reaction. Since the nitrates can not exist by themselves, nitrate must combine with water vapor to form nitric acid, hence giving the overall reaction: 2N2 + 5O2 + 2H2O = 4HNO3. Cysteine and cystine both contain approxima ...
Respiratory Irritant Gases - Military Medical Science Letters
... inhalation, ingestion, and eye or skin contact (Sittig, 1991). Hydrogen chloride forms corrosive hydrochloric acid on contact with water found in body tissues. Inhalation of the fumes can cause coughing, choking, inflammation of the nose, throat, and upper respiratory tract. In severe case hydrogen ...
... inhalation, ingestion, and eye or skin contact (Sittig, 1991). Hydrogen chloride forms corrosive hydrochloric acid on contact with water found in body tissues. Inhalation of the fumes can cause coughing, choking, inflammation of the nose, throat, and upper respiratory tract. In severe case hydrogen ...
9/11/01
... But what if we had only gotten 100. g of SO 2 with those amounts of CS2 and O2? - reaction did not go to completion - several competing reactions involving CS2 and/or O2 were going on at the same time. Theoretical yield – the amount of product we should get when a reactant is completely consumed acc ...
... But what if we had only gotten 100. g of SO 2 with those amounts of CS2 and O2? - reaction did not go to completion - several competing reactions involving CS2 and/or O2 were going on at the same time. Theoretical yield – the amount of product we should get when a reactant is completely consumed acc ...
ppt of odor guard
... the breakdown of any Volatile Organic Compounds or VOCs by destroying the molecular bonds. This will help combine the organic gases to form a single molecule that is not harmful to humans thus enhance the air cleaning efficiency. Some of the examples of odor molecules are: Tobacco odor, formaldehyde ...
... the breakdown of any Volatile Organic Compounds or VOCs by destroying the molecular bonds. This will help combine the organic gases to form a single molecule that is not harmful to humans thus enhance the air cleaning efficiency. Some of the examples of odor molecules are: Tobacco odor, formaldehyde ...
Biological Radical Sulfur Insertion Reactions
... sulfane sulfur. The reaction proceeds via the formation of a protein-bound cysteine persulfide intermediate on a conserved cysteine residue (Figure 6).12,13 A mechanism for this reaction has been established by elegants studies from D. Dean on NifS, a cysteine desulfurase from Azotobacter vinelandii ...
... sulfane sulfur. The reaction proceeds via the formation of a protein-bound cysteine persulfide intermediate on a conserved cysteine residue (Figure 6).12,13 A mechanism for this reaction has been established by elegants studies from D. Dean on NifS, a cysteine desulfurase from Azotobacter vinelandii ...
Types of Native Fermentations
... use of sulfur dioxide or other antimicrobial No additions of nutrients that would alter microbial dynamics No oxygen addition except that occurring during transfers No temperature control that would alter microbial dynamics ...
... use of sulfur dioxide or other antimicrobial No additions of nutrients that would alter microbial dynamics No oxygen addition except that occurring during transfers No temperature control that would alter microbial dynamics ...
Sulfur and carbon isotope analyses of the 2.7 Ga Jeerinah
... with much smaller amounts of pyrite, we can expect to determine the δ34S values in a micro-scale area. Therefore, δ 34S values were determined using a laser microprobe system. The Nd-YAG laser system used at Tohoku University (Fig. 4) consists of: (a) a Nd-YAG laser microprobe unit, (b) a sample cha ...
... with much smaller amounts of pyrite, we can expect to determine the δ34S values in a micro-scale area. Therefore, δ 34S values were determined using a laser microprobe system. The Nd-YAG laser system used at Tohoku University (Fig. 4) consists of: (a) a Nd-YAG laser microprobe unit, (b) a sample cha ...
safety data sheet
... Product is flammable. Use appropriate media for adjacent fire. For a small fire, use dry chemical powder. For a large fire, use water spray or fog. Cool containing vessels with water jet in order to prevent pressure build-up, autoignition or explosion. ...
... Product is flammable. Use appropriate media for adjacent fire. For a small fire, use dry chemical powder. For a large fire, use water spray or fog. Cool containing vessels with water jet in order to prevent pressure build-up, autoignition or explosion. ...
Enzymatic activation of sulfur for incorporation into biomolecules in
... bacteria: glutathione amide was found in Chromatium as a representative of anaerobic sulfur bacteria (Bartsch et al., 1996); and g-glutamylcysteine and thiosulfate were identified as the major low-molecular-weight thiols in Halobacteria (Newton & Javor, 1985). Other specialized thiols termed CoM and ...
... bacteria: glutathione amide was found in Chromatium as a representative of anaerobic sulfur bacteria (Bartsch et al., 1996); and g-glutamylcysteine and thiosulfate were identified as the major low-molecular-weight thiols in Halobacteria (Newton & Javor, 1985). Other specialized thiols termed CoM and ...
A tribute to sulfur - Wiley Online Library
... accessible through one or more membranes [53±57]. In this case the iron and the sulfur will have to be imported into specific compartments or alternatively, synthesis is completed in one compartment and the Fe±S cluster as such or in a precursor-form has to be exported. Thus, there is a whole set of ...
... accessible through one or more membranes [53±57]. In this case the iron and the sulfur will have to be imported into specific compartments or alternatively, synthesis is completed in one compartment and the Fe±S cluster as such or in a precursor-form has to be exported. Thus, there is a whole set of ...
Thiosulfoxide (Sulfane) Sulfur: New Chemistry and New Regulatory
... donate electron pairs to more than one sulfur atom. Figure 1. Bonding of elemental dulfur. ...
... donate electron pairs to more than one sulfur atom. Figure 1. Bonding of elemental dulfur. ...
Chemical Technology - Engineers Institute of India
... 1. Sulfur (S) is the chemical element that has the atomic number 16. It is denoted with symbol (S). 2. It is an abundant, multivalent non metal. Sulfur in its native form is a bright yellow crystalline solid. 3. Its commercial uses are primarily in fertilizer, but it is also widely used in black gun ...
... 1. Sulfur (S) is the chemical element that has the atomic number 16. It is denoted with symbol (S). 2. It is an abundant, multivalent non metal. Sulfur in its native form is a bright yellow crystalline solid. 3. Its commercial uses are primarily in fertilizer, but it is also widely used in black gun ...
Chlorine Dioxide Gas Sterilization
... been recognized since the beginning of the century for its disinfecting properties; and has been approved by the US EPA for many applications including the widespread use of CD in the treatment of drinking water. Beyond this and numerous other aqueous applications, the sporicidal properties of gaseo ...
... been recognized since the beginning of the century for its disinfecting properties; and has been approved by the US EPA for many applications including the widespread use of CD in the treatment of drinking water. Beyond this and numerous other aqueous applications, the sporicidal properties of gaseo ...
Sulfur Part II: Sulfur and Sulfur Compounds in the Human Body
... enzymes, and results in histological improvement of hepatic lesions. ...
... enzymes, and results in histological improvement of hepatic lesions. ...
Biological conversion of sulfide to elemental sulfur
... PHM 55 pH Regulator connected to an Ingold (Inwater, a concentrated nutrient solution and a sulgold Electrodes Inc., Wilmington, MA) 465-35-K9 fide stock solution (Fig. 2). In Trials 9 and 10, combined glass electrode inserted into the reactor. there were only two feeds: a nutrient medium and a Feed ...
... PHM 55 pH Regulator connected to an Ingold (Inwater, a concentrated nutrient solution and a sulgold Electrodes Inc., Wilmington, MA) 465-35-K9 fide stock solution (Fig. 2). In Trials 9 and 10, combined glass electrode inserted into the reactor. there were only two feeds: a nutrient medium and a Feed ...
Sulfur dioxide
Sulfur dioxide (also sulphur dioxide) is the chemical compound with the formula SO2. At standard atmosphere, it is a toxic gas with a pungent, irritating, and rotten smell. The triple point is 197.69 K and 1.67 kPa. It is released naturally by volcanic activity. Sulfur dioxide was used by the Romans in winemaking when they discovered that burning sulfur candles inside empty wine vessels kept them fresh and free from vinegar smell.