Thi Duy Hanh Le

• PhD (University of Trento)
• Ho Chi Minh City University of Technology and Education

Constructing hybrid semiconductor photocatalysts and increasing the charge-carrier density are effective strategies for enhancing the photocatalytic performance of ZnO. This study elucidates the synergistic effects of electron trapping and surface plasmon resonance (SPR) on the activity of ZnO photocatalysts. Ag/ZnO nanocomposites were synthesized...

This study synthesized and modified a semi-interpenetrating polymer network hydrogel from polyacrylamide, N,N′-dimethylacrylamide, and maleic acid in a potassium hydroxide solution. The chemical composition, interior morphology, thermal properties, mechanical characteristics, and swelling behaviors of the initial hydrogel (SH) and modified hydrogel...

Hydroxyapatite (HA) embedded in polymer-based bone scaffold exhibits excellent medical properties for bone healing. Indeed, limited studies have reported on the addition of HA into starch/polyvinyl alcohol (PVA) scaffold system, especially HA role as bio-additive releasing Ca²⁺ ion promoting biomineralization. Herein, HA derived from chicken bone w...

Zinc oxide nanoparticles (ZnO NPs) have shown a great potential for antibacterial and antifungal properties; however, an improvement of certain candidates is always a quest for many applications. For this purpose, we have chemically combined ZnO NPs with graphene oxide (GO) via hydrothermal process to enhance antibacterial property of zinc oxide. B...

Immobilization of ZnO-based photocatalyst on supportive substrates has gained attention expeditiously in the last decade in the field of organic pollutant removal. In this review, recent development of supportive substrates along with immobilization methods and photocatalytic performances of the immobilized system were discussed. Until now, glass s...

The aim of this work was to strengthen the evidence of using micro diatom frustule as a promising candidate for drug loading materials for both hydrophobic and hydrophilic drug models. The morphological, surface elemental composition of diatomite powder, a raw source of micro diatom frustules and purified diatomite to collect micro diatom frustule...

Using steel slag in the cement industry has been considered a green recycling solution to the solid waste problem. Granulated blast furnace slag (GBFS), in fact, is used as an additive to counteract the sulfate attack of Portland cement; however, its ability to undergo fire or heat exposure has not been highlighted yet. Therefore, this study focuse...

Zinc oxide nanoparticles (ZnO NPs) have received significant interest in bioengineering. Here in, ZnO NPs synthesis was performed via sol-gel method using precursors including zinc acetate salt and sodium hydroxide, followed by calcination of precipitated part at 180oC. The synthesized ZnO NPs properties in terms of phase composition, size and shap...

The regeneration of bone tissue via tissue engineering procedures is a challenging task that requires the selection of materials/scaffolds, with tailored biological and physical properties, and possibly the use of osteogenic additives that can stimulate cells to produce and mineralize collagen. Apart from growth factors, whose use is restricted by...

Bone tissue engineering has attracted a lot of research attention recently as an interdisciplinary subject aiming to restore, maintain, and improve the functions of bone. The procedure of bone tissue engineering is based on the combination of three main factors, including biomaterials, cells and bioactive molecules. Interestingly, the natural bone...

Biogenic silica nanoparticles (SiNPs) extracted from rice husk (RH) were produced under strong base media with addition of organic solvent. Solubility of the SiNPs in deionized water is the key requirement for biomedical use. SiNPs derived from rice husk ash characterized by transmission electron microscopy (TEM) presented a round shape with the si...

Many studies have highlighted the role of silicon in human bone formation and maintenance. Silicon, in fact, is considered to nucleate the precipitation of hydroxyapatite and to reduce the bone resorption. For this reason, we have combined silk fibroin with silicon releasing diatom particles, as potential material for bone tissue engineering applic...

Recent studies revealed that certain strain of bacteria is beneficial to the physio-mechanical properties improvement of cement concrete materials. Calcite precipitation in cement matrix could be generated by the bacterial metabolism phenomenon, as known biomineralization. Herein, a novel method of study about bacterial calcite precipitation was pr...

Silicon/silicon ion is recognized an essential trace for both bone formation and maintenance. Silicon, in fact, is considered as a nucleation facilitating of the early stage of mineralization as well as an inhibiting factor of bone resorption. Here we were to take inspiration from the natural source of amorphous silica/silicon, diatomite/diatom ske...

Silicon plays an important role in bone formation and maintenance, improving osteoblast cell function and inducing mineralization. Often, bone deformation and long bone abnormalities have been associated with silica/silicon deficiency. Diatomite, a natural deposit of diatom skeleton, is a cheap and abundant source of biogenic silica. The aim of the...

Large scale recycling of steel slag as a cementitious additive to cement mortar and/or concrete was investigated in this paper. As the material component of steel slag is highly variable, this EAF slag is gathered from plant site of Dong Tien steelmaker in Ba Ria-Vung Tau province. Chemical compositions of slag consist almost the high content of fr...