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In vivo Trafficking of Liposomes Containing Boron Compounds for Boron Neutron Capture Therapy (BNCT)
Huu Bao Nguyen,유정수 대한방사성의약품학회 2023 Journal of radiopharmaceuticals and molecular prob Vol.9 No.1
For over 50 years, boron neutron capture therapy (BNCT) has been steadily developed for treating various cancers. This is a non-invasive, selective, and targeted radiotherapy wherein boron-rich molecules accumulate at the tumor site. Liposomal vesicles have become a popular and effective drug delivery system for BNCT, with strategies including surface decoration, bilayer integration, and hydrophilic core encapsulation. This review highlights the state-of-the-art uses of liposomes in BNCT and elucidates a new perspective where BNCT can be used with radiotracer guidance in all-in-one delivery systems
Bien Dong Che,Le-Thu T. Nguyen,Bao Quoc Nguyen,Ha Tran Nguyen,Thang Van Le,Nieu Huu Nguyen 한국고분자학회 2014 Macromolecular Research Vol.22 No.11
Radar absorbing materials (RAMs) for practical applications are expected not only to have strong microwaveabsorption and a wide absorption bandwidth, but also to be lightweight, to have a fine thickness and acceptablestructural performance, as well as being cost-effective. Although the dispersion of carbon-nanofillers in polymermatrices is a key factor determining the microwave absorbing properties of the composites, there have few studieson these effects. To our knowledge, to date, the realization of pristine multi-walled carbon nanotube (MWCNT)/polymercomposites as RAMs in industrial production has been restricted, due to high CNT contents or large composite thicknesses. Thus, in this work, two MWCNT dispersion processing methods, a solution process with surfactant-aid anda ball-milling dispersion, were investigated to fabricate pristine MWCNT/epoxy nanocomposites. The effects of thedifferent dispersion processes, CNT loading, and composite thickness on CNT dispersion in the matrix, were observedby TEM, and the electrical conductivity and X-band absorbing performance of the composites were assessed. Theuse of an ionic surfactant to aid the dispersion of CNTs in solution resulted in the best RAMs, with a good compromiseamong effective X-band absorption, small composite thickness, and very low CNT content. The ball-millingmethod also resulted in materials with a low CNT content and microwave absorbing performance acceptable forindustrial applications. Moreover, it offers a very simple and efficient route suitable for low-cost, mass productionof RAMs. The results showed that by facile approaches of dispersing pristine commercial MWCNTs in an epoxyresin matrix, composites of only 2-3 mm thickness and as little as 0.25-0.5 wt% CNT loading could be obtained,with a relatively wide X-band operating bandwidth and maximum absorptions exceeding 18-25 dB.
Nhung Thanh Thi Truong,Tam Huu Nguyen,Bao Kim Doan,Le-Thu T. Nguyen,Tam Hoang Luu,Chau Duc Tran,Thiet Quoc Nguyen,Ha Tran Nguyen 한국고분자학회 2021 Macromolecular Research Vol.29 No.11
In this research, three organic photocatalysts, 4-(4H-dithieno[3,2-b:2',3'- d]pyrrol-4-yl)-N,N-diphenylaniline, 4-(pyren-1-yl)-4H-dithieno[3,2-b:2',3'-d]pyrrole and 4-(6b,10-dihydroperylen-3-yl)-4H-dithieno[3,2-b:2',3'-d]pyrrole have been successfully synthesized through C-N coupling reactions. The chemical structures and the optical properties of the obtained organic photocatalysts have been characterized via 1H NMR,13C NMR, elemental analysis, and UV-Vis spectroscopy. Next, these dithieno[3,2-b:2′,3′-d]pyrrole-based photocatalysts have been used for the polymerization of methyl methacrylate, 2-(dimethylamino)ethyl methacrylate and tert-butyl methacrylate monomers under 365 nm UV irradiation, resulting in (meth)acrylate polymers with controlled molecular weights and low polydispersity indexes.
Melvyn WB Zhang,Bach Xuan Tran,Huong Lan Thi Nguyen,Huong Thi Le,Nguyen Hoang Long,Huong Thi Le,Nguyen Duc Hinh,Tran Dinh Tho,Bao Nguyen Le,Vu Thi Minh Thuc,Chau Ngo,Nguyen Huu Tu,Carl A. Latkin,Roger 대한의료정보학회 2017 Healthcare Informatics Research Vol.23 No.2
Objectives: The average alcohol consumption per capita among Vietnamese adults has consistently increased. Although alcoholrelated disorders have been extensively studied, there is a paucity of research shedding light on this issue among Internet users. The study aimed to examine the severity of alcohol-related disorders and other associated factors that might predispose individuals towards alcohol usage in a sample of youths recruited online. Methods: An online cross-sectional study was conducted with 1,080 Vietnamese youths. A standardized questionnaire was used. Respondent-driven sampling was applied to recruit participants. Multivariate logistic and Tobit regressions were utilized to identify the associated factors. Results: About 59.5% of the males and 12.7% of the total youths declared that they were actively using alcohol. From the total sample, a cumulative total of 32.3% of the participants were drinking alcohol, with 21.8% and 25.0% of the participants being classified as drinking hazardously and binge drinkers, respectively. The majority of the participants (60.7%) were in the pre-contemplative stage. Conclusions: A high prevalence of hazardous drinking was recognized among online Vietnamese youths. In addition, we found relationships between alcohol use disorder and other addictive disorders, such as tobacco smoking and water-pipe usage. Our results highlighted that the majority of the individuals are not receptive to the idea of changing their alcohol habits, and this would imply that there ought to be more government effort towards the implementation of effective alcohol control policies.
Thuy Tien Nguyen,Huu Bao Nguyen,강민경,유정수 대한방사성의약품학회 2023 Journal of radiopharmaceuticals and molecular prob Vol.9 No.2
Cu(II) diacetyl-di(N4-methylthiosemicarbazone), also known as Cu(II)-ATSM, is a popular copper-complexed thiosemicarbazone derivative that has been widely studied for hypoxia. [64Cu]Cu-ATSM has emerged as an effective tracer for positron emission tomography imaging to functionally characterize hypoxic tumors. However, understanding the precise mechanism of cellular uptake and metabolism of Cu(II)-ATSM remains a controversial task in which different hypotheses have been proposed. Herein, we will elucidate the current findings regarding the hypoxic uptake mechanism of Cu(II)-ATSM. Particularly, we will investigate the cell internalization mechanism and intracellular reduction of Cu(II)-ATSM.