S. Hou, Z. Shen, J. Zhang, X. Zhao, Z. Xue, Chem.393 (2004) 179. .The properties of CNTs are mostly dependent on the tubular diameter, doped atoms in the structure and chirality, which make their synthesis for the specific purposes difficult.A quick look at the results reveals that the calculated NQR parameters are not similar for various nuclei; therefore, the electrostatic environment of BNNT is not equivalent in length in all BNNT models. E. Bengu, L.D.
2677 words (6.7 pages)
Refer to the notation from molecular transport theory  we can deduce that the spin-up channel conductance is through the lowest unoccupied molecular orbital (LUMO) while the spin-down channel conductance is through both the highest occupied molecular orbital (HOMO) and LUMO of pristine (6,0) BNNT in scattering region.Place the actual footnote at the bottom of the column in which it was cited.Use letters for table footnotes.Capitalize only the first word in a paper title, except for proper nouns and element symbols.Do not put footnotes in the reference list.
2680 words (6.7 pages)
The term “liquid-phase” synthesis was earlier used to highlight the heterogeneity between solid-phase peptide synthesis and a method of synthesis on soluble polyethylene glycol.In this revision, we wish to testimony the synthesis of poly( bromomaleimide) with diverse cross linking densities and their applications in assorted oxidation reactions such as: oxidation of alcohols to their equivalent carbonyl compounds, synthesis of .. Towering steadiness of this polymeric reagent compared to its low molecular weight counterparts, trouble-free work up measures of the reactions, and its rejuvenation and salvage formulate it beneficial over comparable halo reagents.introduced the synthesis of chloro and bromopolymaleimide and used as haloge...
1854 words (4.6 pages)
β-Enaminones are versatile compounds that have been used for their pharmacological activity, as building blocks for natural product synthesis and heterocyclic synthesis.They have focused most of their attention on the synthesis of nitrogen containing heterocycles by the condensation of ketoalkynes with ammonia.Two of the most common are: Fischer-indole synthesis and a Hantzsch synthesis to obtain the pyridines.These bicyclic models moieties have found a large importance as intermediates in the synthesis of various dugs and natural products.There have been several methods employed traditionally for the synthesis of these compounds based on use of a wide range of transformation, such as Diels-Alder, Grignard reagents, reductions, Wittig r...
2943 words (7.4 pages)
The second major achievement in the field of organic synthesis is the synthesis of acetic acid from elemental carbon by Kolbe in 1845.It also serves to improve chemical synthesis by attempting to push its frontiers into higher molecular complexity, diversity, and efficiency.Considered by many as the flagship of organic synthesis, natural product synthesis symbolizes the power of chemical synthesis at any given time and defines its scope and limitations.This event ushered in the modern era of total synthesis and Woodward who received the 1965 Nobel Prize for Chemistry for several brilliant examples of total synthesis such as his 1954 synthesis of strychnine, cholesterol is regarded as the “father” of modern organic synthesis.Some modern...
1330 words (3.3 pages)
The Explanatory Synthesis .In the explanatory synthesis, writers divide a subject into its component parts and present them to the reader in a clear and orderly fashion.Then order your synthesis according to a structure that is consistent.In developing a thesis for your explanatory synthesis, base your thesis on an idea that is .• Write the first draft of your synthesis.
1638 words (4.1 pages)
Followed by few researchers reported the NPs synthesis by using Marine fungus.Recently the exopolysaccharide derived from the marine bacterium are used as the reducing and stabilizing agent for the synthesis of the gold NPs with significant antibacterial activity against clinical human pathogens (Sathiyanarayanan et al., 2014).The chemical, Physical and green synthesis are not attend the large scale production due to their draw backs such as presence of the toxic compounds and hazarded materials as the byproduct in the synthesis of the metal NPs.The marine seaweed are excellent source for the synthesis of the zinc, the seaweeds extracts such as , red and brown are used as the reducing and stabilizing agent for the NPs synthesis.Kathi...
2476 words (6.2 pages)
Microwave-assisted synthesis has attracted much attention as it provides a very rapid method for the synthesis of MOFs and has been used extensively to produce nanosize metal oxides .Recently, a mechanochemical approach was also applied for ZIF synthesis using combinations of ZnO and imidazole (HIm), 2-methylimidazole (HMeIm), and 2-ethylimidazole (HEtIm) as the starting material within 30-60min reaction time .Mechanochemical synthesis involves breakage of intramolecular bonds mechanically followed by a chemical transformation .Synthesis of porous MOF by mechanochemical reaction was reported first in 2006 .The synthesis parameters such as solvent, electrolyte, voltage-current density, and temperature on the synthesis yiel...
2182 words (5.5 pages)
Since the very essence of synthesis is the combining of information and ideas, you must have some basis on which to combine them.In an academic synthesis, you make explicit the relationships that you have inferred among separate sources.It will frequently be helpful for your readers if you provide at least partial summaries of sources in your synthesis essays.However, at times your argumentative synthesis essays will include sections that are explanatory in nature.The explanatory synthesis does not go much beyond what is obvious from a careful reading of the sources.
786 words (2.0 pages)
Multicomponent reactions under these solvent-free conditions can be adapted for high speed parallel synthesis and are exemplified by assembly of dihydropyrimidine-2(1H)-ones (Biginelli reaction) and imidazo[1,2-a]annulated pyridines, pyrazines and pyrimidines (Ugi reaction) which may have potential in building a library of such compounds .Verma and Rajender Singh made solvent free synthesis of heterocyclic compounds.Microwave- assisted synthesis has been applied in many formats ranging from traditional solution phase to solid phase and solvent free reactions.Zhang and zhou reported the major advantage of solvent-free, for the green synthesis derivatives of heterocyclic compounds.The solid state synthesis of N-derivatives of 5-halogen su...
1443 words (3.6 pages)
In this project we have design the synthesis of the following APIs .. .And Ph.D. scholars in the field of Organic Synthesis.Ours Efforts will be enabling to purpose the more efficient synthesis of complex molecules.This project concern with the establishment of organic synthesis facilities in Department of Chemistry, UNIVERSITY OF KARACHI.Proposed Two-Step Synthesis route for Atenolol .
900 words (2.3 pages)
Thus Ruggie came to define the opposite to the neo-neo synthesis, i.e., constructivism, with the following statement ‘ ’ (Ruggie 1998: p. 867).If this constructivist position is accurate, Ruggie argued, then the neo-neo synthesis cannot also be accurate.The neo-neo synthesis is therefore criticised on three counts: one, it pays too little attention to how national and territorial identities are formed, and therefore does not have sufficient knowledge of these identities when needing to make informed decisions on international political and economic policy; secondly, this being a related point, the neo-neo synthesis does not make clear the relationship between how state identities are formed and therefore how states will behave internati...
1725 words (4.3 pages)
In this essay, the author found various sources on the same topic (the purposes of U.S. forces in Vietnam) and used certain parts of those sources to support the thesis statement.Writing your synthesis The following synthesis essay is from Reading and Writing across the Curriculum (2001, pp.Now, decide the order in which you will present your evidence, the various arguments you will employ, and how you will convince your readers.Before writing your synthesis .The guiding ideas of the paper—the thesis statement at the end of the first paragraph and the corresponding topic sentences—are highlighted in gray.
475 words (1.2 pages)
The development of techniques for the controlled synthesis of nanoparticles of well defined size, shape and composition, to be used in the biomedical field and areas such as optics and electronics, has become a big challenge.To obtain the optimum concentration of CdCl2 and Na2S that yields the maximum synthesis of nanoparticles and particle-size distribution, CdCl2 and Na2S, at concentrations ranging from 1 to 10mM, was added to the supernatant at pH 9.0 and temperature 30ºC.The synthesis of nanoparticle circles around enzyme phytochelatin synthase, which exists in surface of .Development of protocols for the synthesis of such semiconductors (the so-called quantum dots) is growing.In order to meet the growing demand of nanoparticles, ec...
2068 words (5.2 pages)
(ii) Synthesis of the entire sequence of the DNA of interest: five to ten PCR products from the first step are combined and used as the template for a second PCR reaction using high-fidelity DNA polymerase pyrobest, with the two outermost oligonucleotides as primers.One such method called PAS (PCR-based accurate synthesis) involves (i) synthesis of oligonucleotides to cover the entire DNA sequence (ii) PCR to synthesize DNA fragments (iii) second PCR for assembly of the products of the first PCR and (iv) cloning of the synthetic DNA and then verification by DNA sequencing.The solid support is contained in columns whose dimensions depend on the scale of synthesis.For synthesis of a gene, the oligonucleotides (about 30-60 nt long) are synt...
1979 words (4.9 pages)
The synthesis of several complex organic compounds follows a multistep synthesis.Benzoin Synthesis .Take care when refluxing benzoin with nitric acid; the nitrogen dioxide fumes are extremely toxic and can cause lung damage.The multistep synthesis of benzilic acid begins with a conversion benzaldehyde to benzoin through a condensation reaction.During the conversion of benzoin to benzil, some benzoin may remain unoxidized.
409 words (1.0 pages)
The strategy of synthesis of biobased reactive polyester from itaconic anhydride was like that itaconic anhydride does not react with diol alone so it is necessary that the monomer added so that the reaction was completed therefore succinic anhydride or glutaric anhydride was used in combination.The present paper is about the lipase catalysed synthesis of bio-based reactive polyester employing itaconic anhydride as a renewable monomer.By looking at the title we can get clear idea that the experiment includes synthesis of biobased reactive polyester using itaconic anhydride as a renewable monomer and lipase as a natural catalyst.The authors used some references to state the method for poly lactide synthesis using two method ring opening p...
2045 words (5.1 pages)
Oh reported that pyridine was added in the solvothermal synthesis of In-MIL-53 to manipulate the morphology of the microsized crystals.On the other hand, the use of various additives is an important synthesis approach for the fabrication of NMOFs materials with tunable morphology and size because the additives usually suppress nucleation and crystal growth during the reaction process.Therefore, the design and synthesis of crystals with specific crystal facets is desired, but is still a challenge.To date, many research efforts have been focused on the design, synthesis and applications of bulk MOFs materials; however, nanosized MOFs (NMOFs) materials have become increasingly interesting in the last decade because their microstructure, ...
1001 words (2.5 pages)
Although the DNA does not produce the new proteins itself, it is responsible for controlling the process of protein synthesis.The fourth and final stage of protein synthesis occurs in the cytoplasm at the ribosomes, and is called translation.Out of the 64 codons can be formed, three of these designate the termination of a message and these are called stop codons (UAA, UGA, UAG) and one codon (AUG) acts as the start signal for protein synthesis.There are four stages in the formation of the proteins, these are: synthesis of amino acids; transcription; amino acid activation and translation.The first stage, the synthesis of amino acids, is concerned with the formation of amino acids.
1676 words (4.2 pages)
Among all synthesis methods, chemical vapor deposition (CVD) is widely used to due to its efficient cost and low operating temperatures required (Shyu et al.,2001; Han et al., 2003; Ni et al., 2006).Many methods for the synthesis of CNTs have been used and developed (Ajayan, 1992; Ishigami et al., 2000; Lee et al., 2002).Abstract Synthesis of carbon nanotubes at low temperatures as low as 540oC was demonstrated via floating catalyst chemical vapor deposition method.Kinetic study of carbon nanotube synthesis over Mo/Co/MgO catalysts.Carbon, 44, 2265-2272.
398 words (1.0 pages)
Synthesis Essay Assignment: Construct a three page thematic analysis of Edward Abbey’s Desert Solitaire.Your essay should concentrate on a single theme (or topic) in Abbey’s work and should integrate at least two outside sources (this is the synthesis part), one of which can be the critical essay I posted in Week 7’s Lesson.A successful essay of this type should include a thesis statement (your opinion of Abbey’s use of .some theme or topic) and supporting textual evidence (discussions of moments in the Desert Solitaire where Abbey uses this theme or topic).You should use these two sources to support your .
3493 words (8.7 pages)
In fact, both isoleucine and valine are the precursor of methylmalonyl-CoA [22, 24]which is a key node of the carbon ï¬‚ux switches from the primary branch into the secondary metabolic branch [29, 33] such asrapamycin.Therefore, more isoleucine and valine in mutant strain might be used to supply methylmalonyl–CoA for rapamycin synthesis.Strengthening of intracellular amino acids related to rapamycin synthesis .The depletion of intracellular tryptophan or the high level of tryptamine might indicate the activation of shikimatemetabolic pathway, and more DHCHC available for rapamycin synthesis.But lysine and rapamycin production was positively correlated since its coefficient was greater than zero, implying the addition of lysine to fer...
1640 words (4.1 pages)
In fact, both isoleucine and valine are the precursor of methylmalonyl-CoA [22, 24]which is a key node of the carbon ï¬‚ux switches from the primary branch into the secondary metabolic branch [29, 33] such asrapamycin.Therefore, more isoleucine and valine in mutant strain might be used to supply methylmalonyl–CoA for rapamycin synthesis.As described above, it was concluded that amino acids metabolism including lysine and arginine, valine, glutamate, isoleucine and ornithine, were key for rapamycin synthesis.In fact, amino acids are essential parts of carbon and nitrogen metabolism for maintaining cell growth and protein synthesis.But lysine and rapamycin production was positively correlated since its coefficient was greater than zero...
1619 words (4.0 pages)
A third synthesis of nicotine by Craig was also carried out: CRAIG’S SYNTHESIS: Nicotinonitrile (1) (above) was reacted with ?An important aspect of Robinson’s route is that it represented the first biomimetic synthesis of an alkaloid.tter worked on a tortuous synthesis (of about 20 steps) of tropinone between 1900 and 1903, but in 1917 Robinson reported his ‘one-pot’ synthesis and also provided what was probably the first example of a formal retrosynthetic analysis.A simple synthesis can provide an alternative supply of such a drug.SPATH’S SYNTHESIS: (1) (Above) was converted into (2) via electrolytic reduction, which on treatment with potassium and methyl sulphate gave (3) (N-methylpyrrolidone).
1927 words (4.8 pages)
Keywords Carbon nanotubes; Floating catalyst; Single heating source; low synthesis temperature Introduction: Since their first discovery in 1991 (Iijima, 1991), carbon nanotubes have attracted much attention due to their nanoscale dimensions and promising shape as well as their potential properties.Synthesis of carbon nanotubes at low temperatures as low as 540oC was demonstrated via floating catalyst chemical vapor deposition method.Kinetic study of carbon nanotube synthesis over Mo/Co/MgO catalysts.Many methods for the synthesis of CNTs have been used and developed (Ajayan, 1992; Ishigami et al., 2000; Lee et al., 2002).Among all synthesis methods, chemical vapor deposition (CVD) is widely used due to its efficient cost and low operat...
391 words (1.0 pages)
Mosharef Hossain reported synthesis of thieno[3,2-e] imidazo[1,2-c] pyrimidin-2(3H)ones (39) which was evaluated for antimicrobial activity against and compare to reference drugs Ampicillin with Nystatin.Ahmed M. M. reported synthesis of 4-(substituted)-7-cyano- 6-phenyl aminothieno [3,2-d] pyrimidins (33-34) and evaluated as good antimicrobial agents by using B.subtilis and compared with reference drug Amoxicillin.Mosharef Hossain reported synthesis of 4-hydrazino-2- mehylthio-5-ethyl-6- methylthieno [2,3-d] pyrimidine (24) which is evaluated as antimicrobial agent by using .In the year 2007 Stephane reported the synthesis and antibacterial activity of arylbenzothiophenes (10) and diarylthiophenes.The 6-methyl-2-phenyl-3-(substit...
769 words (1.9 pages)
Synthesis of Highly Dispersed Single Walled Carbon Nanotubes from Furnace Oil and Light Diesel Oil by Modified Chemical Vapour Deposition Method.Considering the environmental effects and depletion petroleum product sources, our efforts will direct to receive waste engine oil and use it for synthesis carbon nanotubes.This makes the optimization process for synthesis of CNTs from non renewable precursors highly demanding.Synthesis and Characterization of Multi-Walled Carbon Nanotubes from Biodiesel Oil: Green Nanotechnology Route.Catalytic CVD Synthesis of Carbon Nanotubes: Towards High Yield and Low Temperature Growth.
1713 words (4.3 pages)
and is involved in protein synthesis, production of new membrane, modification of newly formed proteins, and transport of these proteins and membrane to other locations within the cell.ER with ribosomes attached is called rough endoplasmic reticulum and is involved in protein synthesis, production of new membrane, modification of newly formed proteins, and transport of these proteins and membrane to other locations within the cell.Membranes also contain enzymes involved in many metabolic processes such as cell wall synthesis, septum formation, membrane synthesis, DNA replication, CO2 fixation and ammonia oxidation .The nucleus in eukaryotic cells is separated from the cytoplasm by a nuclear envelope (nuclear membrane).Inside the nucle...
593 words (1.5 pages)
More recently, researchers have shown that this type of local protein synthesis is necessary for certain types of PLT., .Unlike E-LTP, which is independent of protein synthesis, L-LTP requires the transcription of and protein synthesis in the postsynaptic cell.More precisely, if indeed protein synthesis is the basis of L-LTP, only dendritic spines receiving PLT-inducing stimuli will be subjected to the latter; the potentiation will not propagate to adjacent synapses.One of the reasons for the popularity of the local protein synthesis hypothesis is that it provides a possible mechanism for the specificity associated with PLT.While local protein synthesis provides a mechanism for specificity that global protein synthesis appears to directl...
4109 words (10.3 pages)
In this study we use various ketones such as acetophenone and cyclopentanone in one-pot synthesis of Pyrimidinones.Currently the ideal synthesis in organic chemistry means that a product is made in one step in the process of adapting to green chemistry .The possible mechanism for the nano-γ-Fe2O3-SO3H catalyzed synthesis of substituted 3, 4-dihydropyrimidin-2-(1H)-ones has been proposed in figure 2.It was then reused as such for subsequent experiments (up to five cycles) under similar reaction conditions.Nanomagnetic-supported sulfonic acid is found to be a powerful and reusable heterogeneous catalyst for the efficient synthesis of Pyrimidinones.
419 words (1.0 pages)