Biological properties

Zinc oxide is highly sought after for several applications in biology, optoelectronics, electronics, and sensing. Zinc oxide nanorods exhibit a high exciton binding energy and a wide direct band gap, making them an attractive material for ultraviolet optoelectronic devices in the compound semiconductor field.

6p viling 11-10-2024 1 0   Download

The objective of the present study was to find the changes in physicochemical properties, bioactive compounds, and antioxidant activity of acerola fruits under different cultivars (i.e., Brazilian acerola (Malpighia emarginata D.C) and sour acerola (Malpighia glabra L.)) and maturation stages (unripe, half-ripe, and ripe).

12p vibecca 01-10-2024 2 1   Download

The flavanone glycoside naringin, which is abundant in the very immature pomelo peel cultivated in Vietnam, has been demonstrated to have potential use in semisynthesis into other flavonoid compounds, especially apigenin, which exhibits several biological properties and has a greater commercial value. In this study, we carried out an oxidation reaction on flavanone backbone to semisynthesize apigenin with I2 catalyst in some environmentally friendly solvents such as a replacement for the reaction in the pyridine solvent, which is thought to be a non-green solvent.

6p dianmotminh02 03-05-2024 6 1   Download

In recent times many research activities have been carried out to prove the metal ion detection ability of Schiff bases. [13,14] In the present study, a new Schiff base has been synthesized from 5-bromo-2- hydroxybenzaldehyde and naphthalene-1,8-diamine and it is complexated with Co(II), Ni(II), Cu(II) and Zn(II) ions. The biological application of all the compounds has been analyzed and metal ions recognition property of the Schiff base has also been studied.

16p dianmotminh02 03-05-2024 8 2   Download

The present study investigated the phytochemical and biological properties of the rhizomes C. aromatica. From the CHCl3 extract of C. aromatic rhizomes, six known compounds, including (-)-hannokinol, (3R,5R)-3,5-diacetoxy-1,7-bis(4- hydroxyphenyl)heptane, naringenin, 2-(4- (hydroxymethyl)phenyl)propan-2-ol, 5-hydroxymethylfurfural, and bisacurone, were isolated. All compounds were tested on the biological inhibitory activities against tyrosinase, αglucosidase, and urease. It was the first time all compounds were isolated from rhizomes of C. aromatica Salisb.

6p dianmotminh02 03-05-2024 4 3   Download

The thesis is organised as follows: Chapter 1 comprises the literature review of protein structure, amyloid fibrils and of the effect of nanomaterials on protein aggregation. Chapter 2 reviews the computational methods used to perform simulations and analysis. Chapter 3 comprises my published article on benchmarking forcefields and sampling methods for disordered proteins using amylin as a case study. Chapter 4 comprises my published article on the effect of oxidation on the properties of graphene oxide flakes in solution.

56p runthenight04 02-02-2023 12 3   Download

A new study reveals comprehensive and unique epigenetic properties of glioma stem cells, leading to novel molecular insights and therapeutic potentials toward glioblastoma multiforme treatment.

3p vimichaelfaraday 25-03-2022 11 1   Download

In this study, 341 Bacillus sp. strains were isolated from agricultural soils of Turkey. The potent extracellular lipase producer was selected. It was identified by 16S rRNA, named as Bacillus cereus ATA179. Optimal nutritional and physical parameters for lipase production were determined. Sucrose as the carbon source, (NH4 )2 HPO4 as the nitrogen source, CaCl2 as the metal ion were obtained. The best results of physical parameters were stated at 45°C, pH 7.0, shaking rate 50 rpm, inoculation amount 7% and inoculum age 24 h.

14p thiencuuchu 27-11-2021 18 2   Download

Stevia rebaudiana is a medicinal plant recommended to diabetic or obese patients as an alternative sweetener owing to its low-calorie property. Previous studies have found that the stevioside level is highest at the time of flower bud formation and lowest at the time of preceding and following flower bud formation. Hence, this study aims to identify the genes involved in the flowering of local S.

10p thiencuuchu 27-11-2021 12 0   Download

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.

27p tunelove 10-06-2021 21 4   Download

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.

27p prisonbreak123 21-05-2021 25 4   Download

Study on process of extracting and receiving protein concentrate from Chaetomorpha sp. Investigate the biological properties, functional properties and nutritional value of protein concentrate from algae for application in food.

28p capheviahe27 23-02-2021 28 4   Download

A Chaetoceros strain was successfully isolated to a unialgal state from Giao Thuy mangrove and identified to be of Chaetoceros muelleri species based on morphological properties and 18S rDNA sequence analysis. ASW medium together with 250/00 of salinity was found to be best suitable for the growth of this strain and was applied to its biomass production.

8p larachdumlanat127 20-12-2020 12 3   Download

This work presents the synthesis of CdSe/CdS and CdSe/CdS/SiO2 nanoparticles via wet chemical method for the purpose of preparing fluorescence SiO2 nanoparticles. The CdSe/CdS nanoparticles have been synthesized directly in an aqueous solution using citrate as the surfactant agent.

6p tamynhan9 02-12-2020 20 2   Download

In Vietnam, lotus plants are widely grown. Some parts of the lotus plant have been used as a tradition medicine. The lotus plant is easy to find, inexpensive, non-toxic and accepted by many Vietnamese people as a means of treating diabetes, and yet data on the mechanism or even effectiveness of lotus leaf on diabetes mellitus was not known. The present study was designed to evaluate the hypoglycemic effect of lotus leaf on mice which had alloxan induced diabetes.

10p tamynhan8 04-11-2020 16 3   Download

Spermatogonial stem cells (SSCs) are pluripotent and have properties similar to embryonic stem cells. In this experiment, we collected SSCs from young mouse testis and injected it into mature female mice which were irradiated with gamma rays to bring them to a near death state.

9p tamynhan8 04-11-2020 9 1   Download

Three fungal metabolites, (1) O-methylsilvaticol, (2) orthosporin and (3) diplosporin were isolated from a rare fungus, Kretzschmaria sandvicensis, collected in Dien Bien, in northwest Vietnam. Their structures were established using a combination of high resolution MS (FT-ICR-MS) and 1H-NMR, 13C-NMR, HSQC and HMBC spectroscopy. They were evaluated for anticancer properties against the KB cell line.

5p tamynhan8 04-11-2020 12 2   Download

The metabolic activities of the casein peptides were verified using purified enzymatic inhibition studies. The regulatory enzyme inhibition led us to conclude a positive correlation with the role of casein peptides in modulating the diabetic and hypertensive metabolic pathways in the biological system. Purified enzymes were used for the investigation to clearly observe the direct impact on the diabetes and hypertension related bioprocesses.

10p nguaconbaynhay7 15-08-2020 15 1   Download

Among semi-aquatic species of the legume genus Aeschynomene, some have the property of being nodulated by photosynthetic Bradyrhizobium lacking the nodABC genes necessary for the synthesis of Nod factors.

15p vishikamaru2711 29-04-2020 10 1   Download

Lecture Human anatomy and physiology - Chapter 6: Bones and skeletal tissues (part a). When you finish this chapter, you should: Describe the functional properties of the three types of cartilage tissue, locate the major cartilages of the adult skeleton, explain how cartilage grows, name the major regions of the skeleton and describe their relative functions, compare and contrast the four bone classes and provide examples of each class,...

41p tangtuy07 02-04-2016 46 3   Download