Publications by authors named "Tung Doan"
In this study, we report the successful fabrication of a novel antibacterial triboelectric nanogenerator (TENG) using a polymer composite film based on polyhexamethylene guanidine hydrochloride (PHMG). The composite materials, with optimised ingredient ratios, consist of PHMG, polyvinyl alcohol (PVA) and glutaraldehyde (GA) as a crosslinking agent (PHMG-GA-PVA). Utilising 3D printing, these composite materials were directly deposited on the conductive substrates and used as positive TENG electrodes.
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- Self-assembled fluorescent particles may be key for creating micron-sized random lasers, but this has been challenging.
- Researchers propose a new, efficient method to produce supraparticles from these fluorescent particles, achieving sizes between 50 to 150 µm.
- Supraparticles over 80 µm can emit laser light with a notable redshift in wavelength as their size increases, demonstrating potential for practical applications in random laser technology.
Recent advances in wearable systems have made inertial sensors, such as accelerometers and gyroscopes, compact, lightweight, multimodal, low-cost, and highly accurate. Wearable inertial sensor-based multimodal human activity recognition (HAR) methods utilize the rich sensing data from embedded multimodal sensors to infer human activities. However, existing HAR approaches either rely on domain knowledge or fail to address the time-frequency dependencies of multimodal sensor signals.
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- Large-scale supercapacitor electrodes were 3D-printed onto graphite paper using a composite solution of manganese cobalt sulfide and reduced graphene oxide (MCS/rGO).
- The MCS/rGO solution was made by mixing MCS nanoparticles and reduced graphene oxide in a solvent called dimethylformamide, with its properties analyzed using various microscopy and diffraction techniques.
- The resulting electrodes demonstrated impressive performance with a specific capacitance of 3812.5 F/g and over 92% capacitance retention after 22,000 cycles, making them promising for energy storage applications.
Serum Uric Acid Levels and Risk of Rapid Decline of Estimated Glomerular Filtration Rate in Patients with Type 2 Diabetes: Findings from a 5-Year Prospective Cohort Study.
Healthcare (Basel)
October 2021
This study investigated the association between serum uric acid (SUA) levels with rapid decline of the estimated glomerular filtration rate (eGFR) in type 2 diabetes (T2 DM) patients. A prospective cohort study was conducted in a community-based hospital in Vietnam. We followed 405 T2DM patients with normal kidney function for five years.
View Article and Find Full Text PDFAims: This study determined the prevalence and associated factors of decreased estimated glomerular filtration rate (eGFR) in patients who had type 2 diabetes for at least 5 years.
Methods: A cohort study was conducted in 467 outpatients in a community-based hospital in Ho Chi Minh City, Vietnam. Serum creatinine were tested twice, at two occasions at least 3 months apart.
Introduction: HIV prevalence among men who have sex with men (MSM) in Vietnam is increasing, while annual HIV testing uptake has remained consistently low, posing a significant challenge to reaching the 90-90-90 goals. Barriers to MSM seeking HIV testing include concerns regarding confidentiality and lack of convenient testing options. Two new HIV testing strategies-HIV lay provider and HIV self-testing (HIVST)-were piloted alongside intensive social media outreach to increase access to and uptake of HIV testing among MSM not actively engaged in services.
View Article and Find Full Text PDFBackground: Men who have sex with men (MSM) are disproportionately affected by mental health concerns, including depression. Amphetamine-type-stimulants (ATS) use and homosexuality-related stigma and discrimination have been found associated with depression among MSM.
Objectives: To assess the prevalence of depression and its associations with ATS use and homosexuality-related stigma and discrimination among MSM in Vietnam.
Introduction: Men who have sex with men (MSM) are a key population for HIV infection in Vietnam, and the use of amphetamine type substances (ATS) is prevalent and possibly increasing in this population. The reported analysis examines the association between ATS use before or during sex and HIV infection among MSM in Hanoi, Vietnam.
Methods: This cross-sectional study of 210 MSM was conducted in Hanoi, Vietnam, in late 2014.
Introduction: Amphetamine-type-stimulants (ATS) use is associated with HIV-related sexual risk behaviours and is an emergent problem among men who have sex with men (MSM) in Vietnam. The purpose of this study is to describe ATS use patterns and understand the correlates of recent methamphetamine use from a socio-ecological perspective.
Methods: From September through December, 2014, 622 MSM were recruited in Hanoi and Ho Chi Minh City, Vietnam.