Immobilized enzyme

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  • The Chemistry Of NHS With O-Acylisourea

    chemical inertness of MWCNTs, it is essential to create reactive groups on the surface for further modification [15]. The carboylic groups on the MWCNTs provide ideal anchoring point for the covalent immobilization of enzyme using EDC/NHS [15]. It has been demonstrated that sonicating MWCNTs in a mixture of acid solution opens the tube caps and forms carboxylic groups at the defect sites along the side walls [36]. Fig. 1 shows the FTIR spectra of MWCNTs and acid-treated MWCNTs. The appearance of sharp peaks at 1642 cm-1 indicates the presence of carbonyl groups (C=O) of the quinine type units along the side walls of the nanotubes [37], and its intensity decreased after acidification. Two noticeable peaks appeared at 1737 and…

    Words: 1600 - Pages: 6
  • Using Rice Husk Ash As A Silica Source

    In this research, mesoporous material KIT-6 silica with high surface area (924.5 m2/g) and pore diameter (9.71 nm) was successfully synthesized using rice husk ash as a silica source. According to the SAXS analysis and TEM micrographs, the silicate structure of as-prepared KIT-was not distrupted by the functionalization and activation treatments with 3-APTES and glutaraldehyde, but showed a significant decrease in pore diameter and total pore volume as the compound was covalently bonded to the…

    Words: 1314 - Pages: 6
  • E. Coli Enzyme Β-Galactosidase Lab Report

    Sweta Soni 2/22/15 Biochem Lab Experiment 5 Introduction The purpose of Experiment 5-1 is to separate a mixture of three molecules—blue dextran, cytochrome c, and potassium chromate—through the use of gel-filtration chromatography. The volume at which each molecule elutes will be recorded in order to determine the accuracy of separation. The purpose of Experiment 5-2 is to purify the E. coli enzyme, β-Galactosidase through the use of affinity chromatography on…

    Words: 363 - Pages: 2
  • Influence Of Enzyme Thermostability

    In general, enzyme thermostability is an intrinsic property, determined by the primary structure of the protein. However, external environmental factors including cations, substrates, co-enzymes, modulators, polyols and proteins often increase enzyme thermostability. With some exceptions, enzymes present in thermophiles are more stable than their mesophilic counterparts. Some organisms produce enzymes with different thermal stability properties when grown at lower and higher temperatures. There…

    Words: 1573 - Pages: 7
  • Catechol Oxidase Experiment

    on the enzyme activity and action of catechol oxidase, an enzyme containing copper which oxidizes phenols such as catechol with the use of dioxygen, were examined throughout several trial procedures. The experiment was conducted to determine the optimal pH for an enzyme to carry out its action, as well as to determine…

    Words: 2549 - Pages: 11
  • Essay On Triple Sugar Iron Test

    A. Description of the Study Area The experimentation of the study will be conducted in PLM College of Science Laboratory at Pamantasan ng Lungsod ng Maynila, Gusaling Lacson, 6th floor. The University is located beside Department of Labor and Employment building in Intramuros, Manila, known as the “Walled City”. At the back of the University is the Philippine Red Cross - Manila Chapter. The Lacson Building where the laboratory is located is in between the University Gymnasium and Justo Albert…

    Words: 1043 - Pages: 5
  • Db Enzyme Lab Report

    Sarah Gourgues BIO LAB 1130.036 December 1, 2016 They call me DJ Enzyme because I 'm always breaking it down Abstract: Although protein function is thought to depend on the dynamics of the molecule and its environment contribute to catalytic mechanisms. The increase and decrease of temperatures affected the rate of reaction. In nature, organisms adjust the conditions of their enzymes to produce an optimum rate of reaction, where necessary, may have enzymes which are adapted to function well…

    Words: 1965 - Pages: 8
  • Rhizospheric Diazotroph Case Study

    rhizospheric diazotrophs. Previous studies have investigated that soil microbial diversity, soil enzyme activities and crop yield could be affected by land management practices and all these soil properties were increased under intercropping systems than monoculture (Yang et al. 2013; Li et al. 2015b; Wang et al. 2014; Zou et al. 2011). Moreover, our previous study also discussed that soil biochemical and enzymes have direct effect by intercropping system…

    Words: 1611 - Pages: 7
  • The Importance Of Enzyme Kinetics

    Enzymes are known as catalysts that cause reactions to occur more rapidly by lowering the reaction’s activation energy. A reaction’s activation energy is known as the minimum amount of energy required to get a chemical reaction started1. In order for cells to efficiently manage thousands of different chemical reactions, they make use of biological catalysts. Without these catalysts, biological reactions would not be able to proceed at a proper rate necessary to maintain life. Most, but not all,…

    Words: 751 - Pages: 4
  • Protease In Casein Lab Report

    Group Members Zoe Ching, Juliet Contreras, Ailly Lam, Aleksi Ska. Background information Enzymes are biological catalysts, which speed up the rate of chemical reactions. The pancreas produces a concentrated solution containing a mixture of enzymes – amylase, lipase and protease. In this experiment you will examine the effect of protease on casein, the protein found in milk. When the protease breaks down the casein, the opaque solution will become transparent. Theoretically, Enzyme activity…

    Words: 1935 - Pages: 8
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