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  1. Article: Structural, optical and conductivity properties in tetragonal BaTi₁₋ₓCoₓO₃ (0≤ x ≤0.1)

    Phong, L. T. H. / Dang, N. T. / Dang, N. V. / Nguyen, Van-Quynh / Manh, D. H. / Nam, P. H. / Nguyen, L. H. / Phong, P. T.

    RSC advances. 2022 May 30, v. 12, no. 25

    2022  

    Abstract: This work investigates the structure, optical and electrical conductivity properties of BaTi₁₋ₓCoₓO₃ (0≤ x ≤0.1) ceramics prepared by the hydrothermal method. The X-ray diffraction and Raman scattering analysis demonstrates that the prepared samples have ...

    Abstract This work investigates the structure, optical and electrical conductivity properties of BaTi₁₋ₓCoₓO₃ (0≤ x ≤0.1) ceramics prepared by the hydrothermal method. The X-ray diffraction and Raman scattering analysis demonstrates that the prepared samples have a single-phase tetragonal structure with P4mm symmetry. The UV-vis diffuse reflectance spectrum confirms the influence of Co concentration on the direct optical band gap of BaTi₁₋ₓCoₓO₃ ceramics. The optical band gap shifts from 3.14 eV to 3.44 eV as the Co concentration increases from 0 to 0.1. The dielectric constant increases with the depletion of frequency according to the Maxwell–Wagner and Koops model. The AC conductivity versus frequency curve indicates that the conduction mechanism is determined by using the correlated barrier hopping (CBH) model. The Cole–Cole plot of the complex impedance was investigated for the prepared samples. The compounds showed dielectric relaxation of the non-Debye type.
    Keywords X-ray diffraction ; dielectric properties ; electrical conductivity ; hot water treatment ; models ; reflectance spectroscopy
    Language English
    Dates of publication 2022-0530
    Size p. 16119-16130.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ISSN 2046-2069
    DOI 10.1039/d2ra01411d
    Database NAL-Catalogue (AGRICOLA)

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  2. Article ; Online: Structural, optical and conductivity properties in tetragonal BaTi

    Phong, L T H / Dang, N T / Dang, N V / Nguyen, Van-Quynh / Manh, D H / Nam, P H / Nguyen, L H / Phong, P T

    RSC advances

    2022  Volume 12, Issue 25, Page(s) 16119–16130

    Abstract: This work investigates the structure, optical and electrical conductivity properties of ... ...

    Abstract This work investigates the structure, optical and electrical conductivity properties of BaTi
    Language English
    Publishing date 2022-05-30
    Publishing country England
    Document type Journal Article
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/d2ra01411d
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Correction: Structural, magnetic and hyperthermia properties and their correlation in cobalt-doped magnetite nanoparticles.

    Phong, L T H / Manh, D H / Nam, P H / Lam, V D / Khuyen, B X / Tung, B S / Bach, T N / Tung, D K / Phuc, N X / Hung, T V / Mai, Thi Ly / Phan, The-Long / Phan, Manh Huong

    RSC advances

    2022  Volume 12, Issue 44, Page(s) 28489

    Abstract: This corrects the article DOI: 10.1039/D1RA07407E.]. ...

    Abstract [This corrects the article DOI: 10.1039/D1RA07407E.].
    Language English
    Publishing date 2022-10-05
    Publishing country England
    Document type Published Erratum
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/d2ra90098j
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Sensitive MnFe

    Nha, T T N / Nam, P H / Phuc, N X / Nguyen, V Q / Nam, N H / Manh, D H / Tam, L T / Linh, N T N / Khanh, B T V / Lu, L T / Nguyen, L H / Phong, P T

    RSC advances

    2021  Volume 11, Issue 48, Page(s) 30054–30068

    Abstract: In this study, we present an experiment showing that designing multifunctional ... ...

    Abstract In this study, we present an experiment showing that designing multifunctional MnFe
    Language English
    Publishing date 2021-09-08
    Publishing country England
    Document type Journal Article
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/d1ra03216j
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Correction: Sensitive MnFe

    Nha, T T N / Nam, P H / Phuc, N X / Nguyen, V Q / Nam, N H / Manh, D H / Tam, L T / Linh, N T N / Khanh, B T V / Lu, L T / Nguyen, L H / Phong, P T

    RSC advances

    2021  Volume 11, Issue 53, Page(s) 33372

    Abstract: This corrects the article DOI: 10.1039/D1RA03216J.]. ...

    Abstract [This corrects the article DOI: 10.1039/D1RA03216J.].
    Language English
    Publishing date 2021-10-12
    Publishing country England
    Document type Published Erratum
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/d1ra90155a
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Initial clinical experience of patient-specific QA of treatment delivery in online adaptive radiotherapy using a 1.5 T MR-Linac.

    Yang, B / Wong, Y S / Lam, W W / Geng, H / Huang, C Y / Tang, K K / Law, W K / Ho, C C / Nam, P H / Cheung, K Y / Yu, S K

    Biomedical physics & engineering express

    2021  Volume 7, Issue 3

    Abstract: ... ...

    Abstract Purpose
    MeSH term(s) Adenosine Triphosphate ; Humans ; Particle Accelerators ; Radiotherapy Dosage ; Radiotherapy Planning, Computer-Assisted ; Radiotherapy, Intensity-Modulated
    Chemical Substances Adenosine Triphosphate (8L70Q75FXE)
    Language English
    Publishing date 2021-04-30
    Publishing country England
    Document type Journal Article
    ISSN 2057-1976
    ISSN (online) 2057-1976
    DOI 10.1088/2057-1976/abfa80
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Order via subito

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  7. Article ; Online: Structural, magnetic and hyperthermia properties and their correlation in cobalt-doped magnetite nanoparticles.

    Phong, L T H / Manh, D H / Nam, P H / Lam, V D / Khuyen, B X / Tung, B S / Bach, T N / Tung, D K / Phuc, N X / Hung, T V / Mai, Thi Ly / Phan, The-Long / Phan, Manh Huong

    RSC advances

    2021  Volume 12, Issue 2, Page(s) 698–707

    Abstract: Cobalt doped magnetite nanoparticles ( ... ...

    Abstract Cobalt doped magnetite nanoparticles (Co
    Language English
    Publishing date 2021-12-24
    Publishing country England
    Document type Journal Article
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/d1ra07407e
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Kategorien

    Order via subito

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  8. Article: Sensitive MnFe₂O₄–Ag hybrid nanoparticles with photothermal and magnetothermal properties for hyperthermia applications [Erratum: October 2021, v.11(53), p.33372]

    Nha, T. T. N. / Nam, P. H. / Phuc, N. X. / Nguyen, V. Q. / Nam, N. H. / Manh, D. H. / Tam, L. T. / Linh, N. T. N. / Khanh, B. T. V. / Lu, L. T. / Nguyen, L. H. / Phong, P. T.

    RSC advances. 2021 Sept. 08, v. 11, no. 48

    2021  

    Abstract: In this study, we present an experiment showing that designing multifunctional MnFe₂O₄–Ag nanoparticles to act as a dual hyperthermia agent is an efficient route for enhancing their heating ability. Interestingly, the specific absorption rate of the ... ...

    Abstract In this study, we present an experiment showing that designing multifunctional MnFe₂O₄–Ag nanoparticles to act as a dual hyperthermia agent is an efficient route for enhancing their heating ability. Interestingly, the specific absorption rate of the heteromeric MnFe₂O₄–Ag nanoparticles increased 2.7 times under simultaneous irradiation of a 100 Oe magnetic field and 0.14 W cm⁻² laser compared to the action by the magnetic field alone, and more interestingly, is 30% higher than the sum of the two individual actions. The synergistic benefit of the magneto- and photo-thermal properties of the heteromeric structure can reduce the strengths of the magnetic field and laser intensities as well as their irradiation time to levels lower than those required in their hyperthermia applications individually. In vitro cytotoxicity analysis performed on HepG2 liver cancer and Hela cervical cancer cell lines showed that IC₅₀ values were 83 ± 5.6 μg mL⁻¹ (for HepG2) and 122.6 ± 19.8 μg mL⁻¹ (for Hela cells) after 48 h of incubation, therefore, the nanoparticles are moderately cytotoxic and nontoxic to HepG2 and Hela cells, respectively; which offers the potential of safe therapy.
    Keywords absorption ; cytotoxicity ; fever ; irradiation ; liver neoplasms ; magnetic fields ; neoplasm cells ; therapeutics ; uterine cervical neoplasms
    Language English
    Dates of publication 2021-0908
    Size p. 30054-30068.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ISSN 2046-2069
    DOI 10.1039/d1ra03216j
    Database NAL-Catalogue (AGRICOLA)

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  9. Article: Structural, magnetic and hyperthermia properties and their correlation in cobalt-doped magnetite nanoparticles

    Phong, L. T. H. / Manh, D. H. / Nam, P. H. / Lam, V. D. / Khuyen, B. X. / Tung, B. S. / Bach, T. N. / Tung, D. K. / Phuc, N. X. / Hung, T. V. / Mai, Thi Ly / Phan, The-Long / Phan, Manh Huong

    RSC advances. 2021 Dec. 24, v. 12, no. 2

    2021  

    Abstract: Cobalt doped magnetite nanoparticles (CoₓFe₃₋ₓO₄ NPs) are investigated extensively because of their potential hyperthermia application. However, the complex interrelation among chemical compositions and particle size means their correlation with the ... ...

    Abstract Cobalt doped magnetite nanoparticles (CoₓFe₃₋ₓO₄ NPs) are investigated extensively because of their potential hyperthermia application. However, the complex interrelation among chemical compositions and particle size means their correlation with the magnetic and heating properties is not trivial to predict. Here, we prepared CoₓFe₃₋ₓO₄ NPs (0 ≤ x ≤ 1) to investigate the effects of cobalt content and particle size on their magnetic and heating properties. A detailed analysis of the structural features indicated the similarity between the crystallite and particle sizes as well as their non-monotonic change with the increase of Co content. Magnetic measurements for the CoₓFe₃₋ₓO₄ NPs (0 ≤ x ≤ 1) showed that the blocking temperature, the saturation magnetization, the coercivity, and the anisotropy constant followed a similar trend with a maximum at x = 0.7. Moreover, ⁵⁷Fe Mössbauer spectroscopy adequately explained the magnetic behaviour, the anisotropy constant, and saturation magnetization of low Co content samples. Finally, our study shows that the relaxation loss is a primary contributor to the SAR in CoₓFe₃₋ₓO₄ NPs with low Co contents as well as their potential application in magnetic hyperthermia.
    Keywords anisotropy ; cobalt ; crystallites ; fever ; magnetism ; magnetite ; particle size ; spectroscopy
    Language English
    Dates of publication 2021-1224
    Size p. 698-707.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ISSN 2046-2069
    DOI 10.1039/d1ra07407e
    Database NAL-Catalogue (AGRICOLA)

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