GLORIA

GEOMAR Library Ocean Research Information Access

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Vietnam National University Journal of Science  (4)
  • 1
    In: VNU Journal of Science: Natural Sciences and Technology, Vietnam National University Journal of Science, ( 2023-05-12)
    Abstract: Combination drugs including antibiotics are frequently used for additional therapeutic effects. This fact raises the need for effective methods to simultaneously determine antibiotics of different classes. In this study, four antibiotics including vancomycin, cefoperazone, sulbactam, and ceftriaxone were determined simultaneously by capillary electrophoresis with capacitively coupled contactless conductivity detection (CE-C4D). The analytical conditions including effective length of silica capillary, background electrolyte solutions, separation voltages, and injection modes are investigated. The selected analytical conditions were: silica capillary (internal diameter 50 μm, total length 60 cm, effective length 30 cm); background electrolyte solution 10 Mm L-arginine/acetic acid (pH 9.2); separation voltage +17 kV; siphoning hydrodynamic sample injection at 10 cm height for 20 s. Limits of detection (LOD) of vancomycin, cefoperazone, sulbactam, and ceftriaxone were 2.0 ppm, 1.5 ppm, 1.0 ppm, and 2.0 ppm, respectively. Good linearity (R2 〉 0.999) was achieved for all the target compounds until concentrations as high as 100 ppm. Analytical results of blank-spike samples indicate acceptable recovery (97.5% - 100.4%) and repeatability (RSD: 0.99% - 3.04%). The validated method has been applied to determine these four antibiotics in several pharmaceutical samples. Good agreement between results of our method and the LC-MS/MS method, suggesting CE-C4D is a reliable and cost-effective method in pharmaceutical analysis.
    Type of Medium: Online Resource
    ISSN: 2588-1140 , 2615-9317
    Language: Unknown
    Publisher: Vietnam National University Journal of Science
    Publication Date: 2023
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 2
    Online Resource
    Online Resource
    Vietnam National University Journal of Science ; 2023
    In:  VNU Journal of Science: Education Research ( 2023-04-08)
    In: VNU Journal of Science: Education Research, Vietnam National University Journal of Science, ( 2023-04-08)
    Abstract: The article presents an overview of some recent studies on the domestic and international learning ecosystem and smart learning ecosystem.  Hence, we propose the need to build the foundation of an innovative learning ecosystem based on association theory that is suitable for the educational environment in Vietnam. The components of the learning innovation ecosystem are built with a close relationship between them. The role, meaning, and impact of it on students, teachers, administrators, schools, and society are discussed in detail in this article,...
    Type of Medium: Online Resource
    ISSN: 2588-1159 , 2615-9325
    Language: Unknown
    Publisher: Vietnam National University Journal of Science
    Publication Date: 2023
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 3
    Online Resource
    Online Resource
    Vietnam National University Journal of Science ; 2023
    In:  VNU Journal of Science: Medical and Pharmaceutical Sciences Vol. 39, No. 2 ( 2023-06-20)
    In: VNU Journal of Science: Medical and Pharmaceutical Sciences, Vietnam National University Journal of Science, Vol. 39, No. 2 ( 2023-06-20)
    Abstract: The group of protein drugs has been developing very strongly, promising great advances in diagnosis, treatment, prevention, and human health improvement. Protein drug production is a large area of research, requiring advanced scientific and technological expertise, and integration of multi-disciplinary technology from fields such as biology, genetics, biotechnology, protein extraction and purification, and pharmaceutical manufacturing. As protein drug manufacture involves biosynthesis processes using different cell lines, biopharmaceuticals have some distinct characteristics from small-molecule synthetic drugs, such as variability of biological processes, diversity of synthetic proteins, therefore leading to some differences in research and development, approval procedures, bioactivity testing, quality control and quality assurance and the production of “generic” biopharmaceuticals - biosimilars. This article provides an overview of protein drug production from the initial stage to the finished product process, to identify and promote training activities, research and development, and knowledge transfer, contributing to the development of the biopharmaceutical industry in Vietnam, as well as effectively applying the drugs in clinical practice. Protein drug production is a valuable industrial field, with the goal of not only protecting and taking care of people's health but also developing national research, manufacturing, scientific and technological capacity, and bringing economic value. Keywords: Protein drug, biopharmaceuticals, formulation, biosimilars.     
    Type of Medium: Online Resource
    ISSN: 2588-1132 , 2615-9309
    Language: Unknown
    Publisher: Vietnam National University Journal of Science
    Publication Date: 2023
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 4
    Online Resource
    Online Resource
    Vietnam National University Journal of Science ; 2023
    In:  VNU Journal of Science: Medical and Pharmaceutical Sciences Vol. 39, No. 1 ( 2023-03-25)
    In: VNU Journal of Science: Medical and Pharmaceutical Sciences, Vietnam National University Journal of Science, Vol. 39, No. 1 ( 2023-03-25)
    Abstract: Abstract: Exploring the potential of natural bioactive peptides is becoming more and more important for new drug discovery. First isolated from the European wasp Vespa crabro, the antimicrobial peptide Mastoparan C was found in higher content than many other molecules in the Mastoparan family. In addition to the mast cell degranulation that is similar to some components in insect venom, this compound possesses remarkable biological activities such as broad-spectrum antibacterial and antifungal, inhibiting the proliferation of many human cancer cell lines. However, unfortunately, Mastoparan C has the notable side effect of causing mammalian hemolysis. By investigating its structure-activity relationships, this review pointed out some suggestions to overcome the disadvantages of this potential peptide and thereby support further in-depth study in the drug discovery field. Keywords: Mastoparan C, antimicrobial peptide, biological activity, structure-activity relationships.
    Type of Medium: Online Resource
    ISSN: 2588-1132 , 2615-9309
    Language: Unknown
    Publisher: Vietnam National University Journal of Science
    Publication Date: 2023
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...