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BINDING AND DEGRADATION REACTION OF HYDROXIDE IONS WITH SEVERAL QUATERNARY AMMONIUM HEAD GROUPS OF ANION EXCHANGE MEMBRANES INVESTIGATED BY THE DFT METHOD

Karibayev, Mirat; Myrzakhmetov, Bauyrzhan; Kalybekkyzy, Sandugash; Wang, Yanwei; Mentbayeva, Almagul (Molecules, 2022)

Commercialization of anion exchange membrane fuel cells (AEMFCs) has been limited due to the chemical degradation of various quaternary ammonium (QA) head groups, which af fects the transportation of hydroxide (OH−) ions ...
COMPARATIVE STUDY ON UV-AOPS FOR EFFICIENT CONTINUOUS FLOW REMOVAL OF 4-TERT-BUTYLPHENOL

Mergenbayeva, Saule; Poulopoulos, Stavros G. (MDPI, 2021-12-22)

In the present study, UV-light-driven advanced oxidation processes (AOPs) have been employed for the degradation of 4-tert-Butylphenol (4-t-BP) in water under continuous flow conditions. The effects of varying space time ...
Degradation and mineralization of 4-tert-butylphenol in water using Fe-doped TiO2 catalysts

Makhatova, Ardak; Ulykbanova, Gaukhar; Sadyk, Shynggys; Sarsenbay, Kali; Atabaev, Timur; Inglezakis, Vassilis J.; Poulopoulos, Stavros G. (Nature Research, 2019-12)

In the present work, the photocatalytic degradation and mineralization of 4-tert-butylphenol in water was studied using Fe-doped TiO2 nanoparticles under UV light irradiation. Fe-doped TiO2 catalysts (0.5, 1, 2 and 4 wt.%) ...
PHOTOCATALYTIC DEGRADATION OF 4-TERT-BUTYLPHENOL USING SOLAR LIGHT RESPONSIVE AG2CO3

Mergenbayeva, Saule; Atabaev, Timur Sh.; Vakros, John; Mantzavinos, Dionissios; Poulopoulos, Stavros G. (MDPI, 2022-11-26)

In this work, Ag2CO3 was prepared via a solution-based method and was further characterized by XRD, Raman spectroscopy, SEM/EDS analysis, and UV-VIS spectroscopy. SEM results revealed the formation of micro-sized particles ...
PIPK1b regulates E-cadherin endocytosis in polarized breast cancer cells and promotes a switch to a migratory phenotype

Azhunussova, A.; Shayakhmetov, Y.; Chao, W. T.; Kunz, J. (Nazarbayev University, 2014)

The endocytosis, degradation, and recycling of cadherins is crucial for the dynamic regulation of adherens junctions and the control of cell-cell adhesion during tissue formation and in many pathological conditions. In ...