Bui Thi Phuong Thuy
@vanlanguni.edu.vn
Faculty of Fundamental Sciences
Van Lang University, 69/68 Dang Thuy Tram Street, Ward 13, Binh Thanh District, Ho Chi Minh City, Vietnam
RESEARCH INTERESTS
Chemistry
Scopus Publications
Scopus Publications
Bui Thi Thuy and Le Trung Thanh
Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications)
We present a new method for image compression using the Haar wavelet transform (HWT) in all-optical domain. The proposed architecture is based on the optical Haar wavelet transform using only one 6×6 multimode interference (MMI) coupler. By locating the positions of input and output waveguides and optimizing design length of the MMI, the expected matrix of the Haar transform is obtained. The new hardware architecture is suitable for directly integrating with digital cameras for image processing. The processing of images therefore is at very high speed. Our method can also be applied to data compression in big data analytics. Our structure can provide a large fabrication tolerance which is compatible with the CMOS existing technology. Our simulations show that the length variation of ± 2 µm still keeps the output powers unchanged. We have simulate successfully the use of the proposed HWT to compress cameraman image with the compressed ratios of 20, 30, 50 % with MSE and PSNR from 0.1 - 0.3 and 62 – 67 dB, respectively.
Duy Toan Pham, Quoc Cuong Huynh, Ruby Lieu, Viet Bach Nguyen, Van De Tran, and Bui Thi Phuong Thuy
Informa UK Limited
Background Wedelia trilobata L. (WT), a common herbal plant in Vietnam, is popularly used as a strong antioxidant in Vietnamese folk medicine. However, limited studies have reported the application of WT flower in cosmeceutical area. Purpose This study explored the potentials of WT loaded fibroin microparticles (FMPs-WT) as a novel anti-aging cosmeceutical product. Methods The WT flower was firstly extracted by maceration with methanol, ethanol 60%, and ethanol 96%, and its chemical compositions and total polyphenol content were investigated. Then, the FMPs-WT were developed by desolvation method and physicochemically characterized. Finally, the product antioxidant activities were in-vitro determined using DPPH assay. Results The optimal WT extract was the ethanol 60% extract, which contains polyphenols, alkaloids, flavonoids, saponins, glycosides, and organic acids; with a total polyphenol content of 46.47 ± 2.32 mg GAE/g plant powder. The FMPs-WT were successfully formulated, with a distinct silk-II polymorph; varied sizes of 0.592 to 9.820 µm, depending on the fibroin concentrations and the WT extraction solvent; high entrapment efficiencies of >65%; and sustained-release patterns of polyphenol in pH 7.4 for >6 h. Regarding the antioxidant activity, the pure WT flower extracts possessed high scavenging actions with IC50 of 7.98 ± 0.40 µg/mL, comparable with the standard ascorbic acid (IC50 = 4.23 ± 0.21 µg/mL). Moreover, the FMPs-WT could retain the extract antioxidant capacity, and exert the effects in a timely manner, corresponding to its release profile. Conclusion The FMPs-WT could be further investigated to become a potential anti-aging cosmeceutical product in the market.
Mahadi B. Bahari, Che Rozid Mamat, Aishah Abdul Jalil, Nurul Sahida Hassan, Walid Nabgan, Herma Dina Setiabudi, Dai-Viet N. Vo, and Bui Thi Phuong Thuy
Elsevier BV
Minh Ky Nguyen, Chitsan Lin, Nguyen Tri Quang Hung, Dai-Viet N. Vo, Khoi Nghia Nguyen, Bui Thi Phuong Thuy, Hong Giang Hoang, and Huu Tuan Tran
Elsevier BV
Nguyen Van Khang, Bui Thi Thuy, and Phạm Thanh Chung
ASME International
Abstract In this paper, the parametric resonance of third-order parametric nonlinear system with dynamic friction and fractional damping is investigated using the asymptotic method. The approximately analytical solution for the system is first determined, and the amplitude–frequency equation of the oscillator is established. The stability condition of the resonance solution is then obtained by means of Lyapunov theory. Additionally, the effect of the fractional derivative on the system dynamics is analyzed. The effects of the two parameters of the fractional-order derivative, i.e., the fractional coefficient and the fractional order, on the amplitude–frequency curves are investigated.
Hong Giang Hoang, Bui Thi Phuong Thuy, Chitsan Lin, Dai-Viet N. Vo, Huu Tuan Tran, Mahadi B. Bahari, Van Giang Le, and Chi Thanh Vu
Elsevier BV
Duy Toan Pham, Nguyen Thi Phuong Thao, Bui Thi Phuong Thuy, Van De Tran, Thanh Q. C. Nguyen, and Ngoc Nha Thao Nguyen
Informa UK Limited
Abstract Purpose Rheumatoid arthritis, a chronic and progressive inflammation condition in the joints, has significantly reduced the patient quality of life and life expectancy. Crucially, there is no complete therapy for this disease, and the current treatments possess numerous side effects. Thus, novel therapeutic approach is necessary. To that end, this study developed novel silk fibroin in-situ hydrogel containing Sesbania sesban L. extract, a plant with high anti-inflammatory actions that are beneficial for rheumatoid arthritis treatments. Methods The hydrogels were manufactured using simple method of spontaneous gelation at different temperature. The gel properties of morphology, gelation time, viscosity, gel strength, stability, drug loading capacity, drug release rate, and in-vitro anti-inflammatory activity were investigated with appropriate methods. Results The optimal formulation had highly porous structure, with a gelation time of 0.5 h at room temperature and bodily temperature of 37 °C, a viscosity of 2530 ± 50 cP, a gel strength of 1880.14 ± 35.10 g, and a physical stability of >6 months. Moreover, the hydrogel contained the Sesbania sesban L. leaf extract with a total phenolic content of 92.8 ± 8.30 mg GAE/g, and sustained the release rate for >20 dạys, followed the Higuchi model. Regarding the in-vitro activities, all formulations were nontoxic to the RAW 264.7 cell line and demonstrated comparable anti-inflammatory activity to the free extract, in terms of the NO reduction levels. Conclusion Conclusively, the systems possessed potential properties to be further investigated to become a prospective rheumatoid arthritis treatment.
Bui Thi Phuong Thuy, Le Trung Hieu, Tran Thi Ai My, Nguyen Thi Thanh Hai, Huynh Thi Phuong Loan, Nguyen Thi Thu Thuy, Nguyen Thanh Triet, Tran Thi Van Anh, Nguyen Thi Xuan Dieu, Phan Tu Quy,et al.
Springer Science and Business Media LLC
Bui Thi Phuong Thuy, Tran Thi Ai My, Nguyen Thi Thanh Hai, Huynh Thi Phuong Loan, Le Trung Hieu, Tran Thai Hoa, Thanh Q. Bui, Ho Nhat Tuong, Nguyen Thi Thu Thuy, Doan Kim Dung,et al.
Springer Science and Business Media LLC
Tran Thi Ai My, L. T. Hieu, N. Hai, H. T. Loan, Thanh Q. Bui, Bui Thi Phuong Thuy, P. V. Trung, Bui Thi Bao Tram, N. Tran, P. Quy,et al.
Inhibitory capabilities of six old drugs selected from the DrugBank database including Losartan, Triazavirin, TMC-310911, Verapamil, Clevudine and Elbasvir, which are promising for the treatment of an infectious disease caused by SARS-CoV-2, were examined on the host receptor Angiotensin-converting enzyme 2 (ACE2) and the main protease (PDB6LU7) of SARS-CoV-2 using molecular docking simulation Results reveal that both proteins ACE2 and PDB6LU7 are in strong inhibition by the drugs and the inhibitory effectiveness is in the order: Clevudine > Triazavirin > TMC-310911 > Elbasvir > Losartan > Verapamil In particular, the inhibitability highly correlates with the average docking score energy of inhibitory complexes, and drug-protein active interactions Regarding inhibitory ligands, their polarizability, molecular size, and dispersion coefficient logP are also significant indicators for inhibition potential The drugs are suggested as valuable resources for selecting potential pharmaceuticals to prevent SARS-CoV-2 invasion into human body given theoretical demonstration of molecular docking simulation
Thanh Q. Bui, Huynh Thi Phuong Loan, Tran Thi Ai My, Duong Tuan Quang, Bui Thi Phuong Thuy, Vo Duy Nhan, Phan Tu Quy, Pham Van Tat, Duy Quang Dao, Nguyen Tien Trung,et al.
Royal Society of Chemistry (RSC)
Simultaneous inhibition of silver–carbene complexes to ACE2 and PDB6LU7 is conducive for the prevention of SARS-CoV-2 infection: a virtual prediction.
Bui Thi Phuong Thuy, Tran Thi Ai My, Nguyen Thi Thanh Hai, Le Trung Hieu, Tran Thai Hoa, Huynh Thi Phuong Loan, Nguyen Thanh Triet, Tran Thi Van Anh, Phan Tu Quy, Pham Van Tat,et al.
American Chemical Society (ACS)
[This corrects the article DOI: 10.1021/acsomega.0c00772.].
Tran Thi Ai My, Huynh Thi Phuong Loan, Nguyen Thi Thanh Hai, Le Trung Hieu, Tran Thai Hoa, Bui Thi Phuong Thuy, Duong Tuan Quang, Nguyen Thanh Triet, Tran Thi Van Anh, Nguyen Thi Xuan Dieu,et al.
Wiley
Abstract GC‐MS was applied to identify 24 main substances in Melaleuca cajuputi essential oil (TA) extracted from fresh cajeput leaves through steam distilling. The inhibitory capability of active compounds in the TA from Thua Thien Hue, Vietnam over the Angiotensin‐Converting Enzyme 2 (ACE2) protein in human body ‐ the host receptor for SARS‐CoV‐2 and the main protease (PDB6LU7) of the SARS‐CoV‐2 using docking simulation has been studied herein. The results indicate that the ACE2 and PDB6LU7 proteins were strongly inhibited by 10 out of 24 compounds accounting for 70.9% in the TA. The most powerful anticoronavirus activity is expressed in the order: Terpineol (TA2) ≈ Guaiol (TA5) ≈ Linalool (TA19) > Cineol (TA1) > β‐Selinenol (TA3) > α‐Eudesmol (TA4) > γ‐Eudesmol (TA7). Interestingly, the synergistic interactions of these 10 substances of the TA exhibit excellent inhibition into the ACE2 and PDB6LU7 proteins. The docking results orient that the natural Melaleuca cajuputi essential oil is considered as a valuable resource for preventing SARS‐CoV‐2 invasion into human body.
Huynh Thi Phuong Loan, Hoang Van Duc, Phan Tu Quy, Bui Thi Phuong Thuy, Pham Van Tat, Duong Tuan Quang, and Nguyen Thi Ai Nhung
Wiley
Bui Thi Phuong Thuy, Tran Thi Ai My, Nguyen Thi Thanh Hai, Le Trung Hieu, Tran Thai Hoa, Huynh Thi Phuong Loan, Nguyen Thanh Triet, Tran Thi Van Anh, Phan Tu Quy, Pham Van Tat,et al.
American Chemical Society (ACS)
Eighteen active substances, including 17 organosulfur compounds found in garlic essential oil (T), were identified by GC–MS analysis. For the first time, using the molecular docking technique, we report the inhibitory effect of the considered compounds on the host receptor angiotensin-converting enzyme 2 (ACE2) protein in the human body that leads to a crucial foundation about coronavirus resistance of individual compounds on the main protease (PDB6LU7) protein of SARS-CoV-2. The results show that the 17 organosulfur compounds, accounting for 99.4% contents of the garlic essential oil, have strong interactions with the amino acids of the ACE2 protein and the main protease PDB6LU7 of SARS-CoV-2. The strongest anticoronavirus activity is expressed in allyl disulfide and allyl trisulfide, which account for the highest content in the garlic essential oil (51.3%). Interestingly, docking results indicate the synergistic interactions of the 17 substances, which exhibit good inhibition of the ACE2 and PDB6LU7 proteins. The results suggest that the garlic essential oil is a valuable natural antivirus source, which contributes to preventing the invasion of coronavirus into the human body.
Bui Thi Thuy, Anh Dung Dao, Mooyong Han, Duc Canh Nguyen, Viet Anh Nguyen, Hyunju Park, Pham Dang Manh Hong Luan, Nguyen Thi Thanh Duyen, and Hong Quan Nguyen
IWA Publishing
Abstract For many decades in Vietnam, rainwater harvesting has been widely used as a nature-based solution in rural areas, aiming at good-quality drinking water with low cost and little energy. Recently, rainwater for drinking has attracted much attention from the Vietnam government. Furthermore, despite its efforts, the outcomes are not as expected due to local barriers. This paper reviewed rainwater for drinking demonstration projects in some specific areas of Vietnam, with identification of the technical, economic, and social barriers, further suggesting possible overcome strategies. A lesson learnt from this study would be the principle of promoting rainwater for drinking in developing countries, looking forward to sustainability.
Nguyen Van Khang, Bui Thi Thuy, and Truong Quoc Chien
ASME International
This study aims to investigate the harmonic resonance of third-order forced van der Pol oscillator with fractional-order derivative using the asymptotic method. The approximately analytical solution for the system is first determined, and the amplitude–frequency equation of the oscillator is established. The stability condition of the harmonic solution is then obtained by means of Lyapunov theory. A comparison between the traditional integer-order of forced van der Pol oscillator and the considered fractional-order one follows the numerical simulation. Finally, the numerical results are analyzed to show the influences of the parameters in the fractional-order derivative on the steady-state amplitude, the amplitude–frequency curves, and the system stability.