Summary of Doctoral thesis in Chemistry

Study on main chemical constituents of two Gymnema species including Gymnema sylvestre and Gymnema latifolium growing in Vietnam and evaluate the inhibitory effect of α-glucosidase and α-amylase enzymes of isolated compounds.

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The purpose of the thesis research: Synthesis of new complexes of platinum and rare-earth elements containing quinoline's derivatives that are resistant to cancer cells, high antimicrobial activity or good fluorescence.

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The purpose of the research: Research on designing and implementing teaching topic-based integrated subjects accordance with Kolb‟s experience models on non-metallic chemistry with topics to develop the students‟ collaborative problem solving competence, thereby contributing to innovating teaching methods and improving the quality of teaching chemistry in high schools according to the orientation of developing students' capacity.

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Study objectives: Study and propose the measures to develop the competence in teaching the experimental for pedagogical chemistry student to increasing the teaching competence and increasing the quality of training chemistry teachers of universities.

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Objectives of the dissertation: Research on the degradation process of PE films containing prooxidant additives and recycled polyethylene. After that, preparing plant polybags with different time of degradation.

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The objectives of the thesis: Study on chemical composition of Paramignya trimera and Morinda longissima species. Evaluation of hepatoprotective and anti-HBV activities of extracts and pure compounds from stems and roots of Xao tam phan (Paramignya trimera (Oliv.) Guill.) and Nho dong (Morinda longissima Y.Z. Ruan).

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The objectives of the thesis: The objectives of this study are to investigate the main chemical compositions of Euphorbia hirta L. to search for chemical constituents in relation to biological activities, contributing to further studies to create products for application in the aquarculture industry in particular and for life in general.

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The aim of the thesis: Study on chemical constituents of two Knema species including Knema pachycarpa and Knema saxatilis growing in Vietnam. Evaluate cytotoxic and cetylcholinesterase enzyme inhibitory activitiesof isolates to find out bioactive compounds.

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The research objectives of the thesis: Isolate and determine the chemical structure of compounds from C. candicans and C. macrophylla species collected in Vietnam. Assessment of toxic activity on some cancer cell lines: liver (Hep-G2), lung (Lu-1) and breast (MCF-7) of isolated clean compounds. Researching the chemical composition of C. candicans and C. macrophylla essential oils

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Research objectives of the thesis: The thesis was conducted to research and develop a new type of electrode: glass charcoal electrodes modified by flower platinum nano (PtNFs/GC) and to evaluate the properties of fabricated electrodes: electrode structure, morphology, physical and chemical properties.

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The objectives of the thesis: Research in the toxin/protein having bioactive isolated from Heterometrus laoticus (H. laoticus) scorpion and krait Bungarus fasciatus (B. fasciatus) snake venom.

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The objectives of the thesis: Research in the toxin/protein having bioactive isolated from Heterometrus laoticus (H. laoticus) scorpion and krait Bungarus fasciatus (B. fasciatus) snake venom.

32p extraenglish 24-05-2021 21 3   Download

Purpose of research: Construction and use of the system of chemical exercises used in teaching organic chemistry to develop the creative capacity for students in gifted high school, contribute to renovating teaching and learning methods Chemistry in gifted high schools oriented towards capacity development.

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Study objectives: Study on theoretical and application basis of Microsoft (MS) Access and Visual Basic for Application (VBA) in creating programs that have applications in general teaching and learning and teaching and learning chemistry in particular.

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Goals of the study: Synthesis of new organic compounds (target) containing imidazole-5-one heterocycle; thiazolidine-2,4-dione heterocycle or 1,3,4-oxadiazoline heterocycle with different substituents in experimental conditions of Vietnam. Study on the properties, structures and biological activities of these compounds to contribute to the studies of both theory and application of heterocyclic compounds.

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Purposes of research: Research the process of teaching chemistry in English in high schools, propose types of exercises to practice reading comprehension skills in teaching chemistry in English for students.

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Purpose of the research: Fostering self-study capacity for high school students through the compilation and using self-study exercises in general chemistry module.

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The thesis consists of 135 pages, including 21 tables of data, 50 figures and 144 references. The structure of the thesis consists of: Introduction: 4 pages; Overview: 32 pages; Experimental part: 13 pages; Results and discussion: 63 pages; Recent contributions of the thesis: 1 page; The list of published works: 2 pages; References: 18 pages. There is also an appendix containing the spectrums and diagrams that measure the characteristics and properties of components and AG/CS/LOV, AG/CS/LOV/ginsenoside Rb1 composites with 11 pages.

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The objective of the research is to evaluate combination ability of nano additive with carbon black reinforced for rubber and rubber blend; create rubber nanocomposite materials with a high quality, solvent durability and sustainability in the naturally humid environment.

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The objectives of this study are to investigate the main chemical compositions of Euphorbia hirta L. to search for chemical constituents in relation to biological activities, contributing to further studies to create products for application in the aquarculture industry in particular and for life in general.

31p capheviahe27 23-02-2021 26 3   Download