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Dissertations / Theses on the topic 'Selective Hydrolysis'

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1

Adhamy, Asghar. "Selective hydrolysis of lipids using lipases." Thesis, Teesside University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328090.

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2

Höst, Gunnar. "Engineering carbonic anhydrase for highly selective ester hydrolysis." Doctoral thesis, Linköpings universitet, Molekylär Bioteknik, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-10477.

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I denna avhandling presenteras arbete utfört med enzymet humant karboanhydras II (HCAII). Enzymer är en typ av proteiner som accelererar (katalyserar) kemiska reaktioner, vilket är nödvändigt för allt levande. Den naturliga funktionen för HCAII är att katalysera omvandlingen av gasen koldioxid till vätekarbonat, som är löslig i vätska. Detta är viktigt bl.a. för att koldioxid som bildas i kroppen, och fraktas i blodet i form av vätekarbonat, skall hinna över till utandningsluften under den korta tid blodet är i lungorna. Proteiner består av aminosyror som länkats samman i en lång kedja, där va
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3

Osei-Mensah, Marian. "Synthesis of Resveratrol Ester Derivatives Using Selective Enzymatic Hydrolysis." Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/etd/1400.

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Resveratrol, a naturally derived stilbene, is an interesting compound mostly talked about recently because for its anti-cancer properties. Unfortunately it has some shortcomings due to its low bioavailability and low solubility in water. For this reason, my research is to overcome resveratrol's drawbacks by improving its bioavailability and hydrophilicity. My research is focused on syntheses of novel derivatives of resveratrol such as 3, 5-di-O-isobutyroyl resveratrol and 3, 5-di-O-hexanoyl resveratrol using lipase catalyzed hydrolysis. Therefore, the tri-acylated resveratrols 3, 5, 4'-tri-O-i
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4

Lombardi, Erica. "Selective photo-oxidation of cellobiose with tio2-supported metal nanoparticles." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/6017/.

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Upgrade of biomass to valuable chemicals is a central topic in modern research due to the high availability and low price of this feedstock. For the difficulties in biomass treatment, different pathways are still under investigation. A promising way is in the photodegradation, because it can lead to greener transformation processes with the use of solar light as a renewable resource. The aim of my work was the research of a photocatalyst for the hydrolysis of cellobiose under visible irradiation. Cellobiose was selected because it is a model molecule for biomass depolymerisation studies. Diffe
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5

Fanutti, Cristina. "The selective hydrolysis of tamarind seed xyloglucan (tamarind gum) using enzymes isolated from germinated nasturtium (Tropaeolum majus L.) cotyledons." Thesis, University of Stirling, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386556.

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6

Desai, S. B. "Lipases in biotransformations: resolution of some novel alcohol and diol substrates via selective hydrolysis of their esters and related mechanistic." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2000. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2275.

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7

Chapman, Jamie M. "CARBOXYL ESTER LIPASE (CEL) IS A MAJOR ENZYME RESPONSIBLE FOR THE HYDROLYSIS OF CHOLESTERYL ESTERS IN THE SELECTIVE UPTAKE PATHWAY OF THE LIVER." University of Cincinnati / OhioLINK, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=ucin970245752.

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8

Stoffregen, Stacey Anne. "Palladium(II) and platinum(II) synthetic peptidases residue- and sequence-selective hydrolysis and the photochemistry of sulfoxides, S,C-sulfonium ylides, and sulfilimines: unimolecular bond cleavage/." [Ames, Iowa : Iowa State University], 2007.

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9

Nouveau, Thibaut. "Nébulisation de nouveaux polyplexes pour le transfert de gènes." Electronic Thesis or Diss., Sorbonne université, 2023. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2023SORUS734.pdf.

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La thérapie génique est une forme de thérapie pour traiter les maladies génétiques héréditaires ou acquises tels que les cancers ou la mucoviscidose. L’introduction d’un polynucléotide, par voie systémique ou locale (orale ou nasale par exemple), au sein des cellules malades permet de corriger les défauts à l’origine des mutations génétiques. Néanmoins, le franchissement des différentes barrières biologiques nécessaire à l’internalisation de l’ADN ne peut se faire que par l’intermédiaire d’un vecteur qui va le protéger et lui permettre d’atteindre le noyau de la cellule où il sera transcrit. D
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10

Lu, Fei. "Electrochemically Induced Urea to Ammonia on Ni Based Catalyst." Ohio University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1502235953529178.

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11

Estrada, Anthony Armando. "I, Studies directed towards the total synthesis of nocathiacin III II, the development of a new synthetic technology for the construction of N-hydroxyindoles and synthesis of nocathiacin model systems ; III, the development of a mild and selective method for the hydrolysis of esters with trimethyltin hydroxide ; IV, contributions towards the total synthesis of thiostrepton /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2008. http://wwwlib.umi.com/cr/ucsd/fullcit?p3321980.

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Thesis (Ph. D.)--University of California, San Diego, 2008.<br>Title from first page of PDF file (viewed September 3, 2008). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references.
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12

Benjamin, Yuda L. "Sugarcane cultivar selection for ethanol production using dilute acid pretreatment, enzymatic hydrolysis and fermentation." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86525.

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Thesis (PhD)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: The development of ―energycane‖ varieties of sugarcane for ethanol production is underway, targeting the use of both sugar juice (first generation ethanol) and bagasse (second generation ethanol). Nevertheless, identification of the preferred varieties represents the biggest challenge to the development of energycane due to large number of samples produced during breeding. In the present study, dilute acid pretreatment, enzymatic hydrolysis and fermentation processes were used to evaluate the processability of bagasse (fibrous r
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13

Guidetti, Giulia. "Cellulose photonics : designing functionality and optical appearance of natural materials." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/277918.

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Cellulose is the most abundant biopolymer on Earth as it is found in every plant cell wall; therefore, it represents one of the most promising natural resources for the fabrication of sustainable materials. In plants, cellulose is mainly used for structural integrity, however, some species organise cellulose in helicoidal nano-architectures generating strong iridescent colours. Recent research has shown that cellulose nanocrystals, CNCs, isolated from natural fibres, can spontaneously self-assemble into architectures that resemble the one producing colouration in plants. Therefore, CNCs are an
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14

Rulence, Alexandre. "Mise en œuvre de procédés membranaires pour la séparation sélective de la nisine à partir de surnageants de culture complexes." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. https://pepite-depot.univ-lille.fr/ToutIDP/EDSMRE/2023/2023ULILR034.pdf.

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La nisine, une bactériocine produite par les bactéries lactiques du genre lactococcus présentent des propriétés physico-chimiques d'intérêt tel qu'une thermorésistance ainsi qu'une activité antimicrobienne contre certaines souches pathogènes alimentaires. Elle est actuellement la seule bactériocine reconnue comme GRAS (Generally Recognized As Safe) par la FDA (U.S. Food and Drug Administration) et donc la seule bactériocine pouvant être utilisée comme conservateur naturel en agroalimentaire. La nisine représente donc une alternative d'intérêt à l'utilisation de conservateur chimique. Cependant
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15

ZHANG, GONG-YAO, and 張功耀. "Selective hydrolysis of disaccharide esters by enzymes." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/13181229398868695480.

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16

Zhang, Gong-Yue, and 張功耀. "Selective hydrolysis of disaccharide esters by enzymes." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/38272319671548393691.

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17

徐慈穗. "Selective hydrolysis of methyl esters of a-sialoconjugates by porine liver esterase." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/53618389730505082536.

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18

Salehzadeh-Asl, Reza. "Enantiomeric resolution of cyclobutanones and their photochemical ring expansion products by selective enzyme acylation and hydrolysis." 2001. http://wwwlib.umi.com/cr/yorku/fullcit?pMQ66404.

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Thesis (M. Sc.)--York University, 2001. Graduate Programme in Chemistry.<br>Typescript. Includes bibliographical references (leaves 56-59). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://wwwlib.umi.com/cr/yorku/fullcit?pMQ66404.
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19

Samarajeewa, Sandani. "Poly(lactide)-containing Multifunctional Nanoparticles: Synthesis, Domain-selective Degradation and Therapeutic Applicability." Thesis, 2013. http://hdl.handle.net/1969.1/149300.

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Construction of nanoassemblies from degradable components is desired for packaging and controlled release of active therapeutics, and eventual biodegradability in vivo. In this study, shell crosslinked micelles composed of biodegradable poly(lactide) (PLA) core were prepared by the self-assembly of an amphiphilic diblock copolymer synthesized by a combination of ring opening polymerization (ROP) and reversible addition-fragmentation chain transfer (RAFT) polymerization. Enzymatic degradation of the PLA cores of the nanoparticles was achieved upon the addition of proteinase K (PK). Kinetic a
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20

Enemchukwu, Emeka Martin. "Fabrication and use of new solid state phosphate ion selective electrodes for monitoring phosphorylation and dephosphorylation reactions." Thesis, 2012. http://hdl.handle.net/10500/11955.

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Highly selective and sensitive phosphate sensors have been fabricated by constructing a solid membrane disk consisting of variable mixtures of aluminium powder (Al), aluminium phosphate (AlPO4) and powdered copper (Cu). Both binary and ternary electrode systems are produced depending on their composition. The ternary membranes exhibit greater selectivity over a wide range of concentrations. The ternary electrode with the composition 25% AlPO4, 25% Cu and 50% Al was selected as our preferred electrode. The newly fabricated ternary membrane phosphate selective electrodes exhibited linear potenti
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21

Lin, Chiyung, and 林繼勇. "Part 1 : A New Selective Colorimetric and Fluorescent Chemodosimeter for HSO4- Based on Hydrolysis of Schiff BasePart 2 : Colorimetric Anion Chemosensors Based on Anthraquinone : Naked-eye Detection of Isomeric Dicarboxylate and Tricarboxylate Anions." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/22029086306179768244.

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博士<br>靜宜大學<br>應用化學系<br>102<br>Part 1 :Two new receptors have been prepared based on 4-nitrobenzo[c][1,2,5]oxadiazole (NBD), (E)-N1-(2,5-dimethoxybenzylidene)-N2-(7-nitrobenzo[c][1,2,5]oxadiazol-4-yl)benzene-1,2-diamine (15) and (E)-N1-(3-methoxybenzylidene)-N2- (7-nitrobenzo[c][1,2,5]oxadiazol-4-yl)benzene-1,2-diamine (16). Receptors 15 and 16 were obtained by simple and high-yielding condensation of an amine and aldehyde, and their fluorescent and naked eye visible color changes in the presence of anions and cations were investigated. Receptors 15 and 16 are Schiff base derivatives, which hyd
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