JOSELITO PUZON LABIS

Scopus Publications

Flexographically printed TiO₂ thin films for electrochemical label-free interleukin-8 detection
Abdulaziz K. Assaifan, Kholood K. Alhuthali, Ahmed Mohamed El-Toni, Mahmoud Al-Gawati, Hend Alfadul, Joselito P. Labis, Munira S. Albuaimi, Amir Altinawi
International Journal of Electrochemical Science, 2026
In this work, TiO 2 nanoparticles were printed on top of interdigitated electrodes for the direct non-faradaic detection of interleukin 8. The reported flexographically printed biosensor allows scalable detection of the cytokine at low-cost. Furthermore, non-faradaic impedimetric detection is simple, label-free and enables on-site detection of biomarkers. Physical properties of the printed layers were characterized via surface profilometer and scanning electron microscope. The results show a dense and continuous film of TiO 2 on top of the interdigitated electrodes. X-ray diffraction was also performed to investigate the printed layer and confirmed the passivation of the surface by the printed layer. Chemical analysis was carried out using energy dispersive X-ray and X-ray photoelectron spectroscopy which further confirmed the passivation of interdigitated electrodes surface by TiO 2 . Finally, the printed film was modified with IL-8-antibodies through standard functionalization steps. The biosensors were then used for the direct detection of IL-8-antigens using non-faradaic electrochemical impedance spectroscopy. The biosensors demonstrated sensitivity and LoD of 24.6 nF/log(ng/mL) and 30 pg/mL, respectively, which is comparable to other reported biosensors. The reported technology is promising for low-cost and mass producible sensors in the future for the monitoring of health biomarkers.
Investigating Mg-doping on ZnSnN2 ternary thin films via reactive magnetron co-sputtering
Aeshah Almushawwah, Hamad Albrithen, Joselito Labis, Mahmoud Al-Gawati, A.M. El-naggar, Fahad Alnjiman, Jaafar Ghanbaja, Jean-François Pierson, Abdullah N. Alodhayb
Materials Today Communications, 2026
This study investigated Mg doping on ZnSnN 2 thin films via the magnetron co-sputtering technique under a high-purity nitrogen background at room temperature. Room-temperature deposition allowed assessment of intrinsic microstructural evolution without thermally driven diffusion, highlighting Mg-induced formation of Mg₃N₂ and Si–N-rich interfacial layers. The discharge power of the magnetron sputtering containing Mg target had the values 0, 120, 140, 160, 180, 200, 220, and 240 W, making eight thin films. In contrast, other growth conditions, such as the N 2 flow rate, discharge currents on the Zn and Sn targets, substrate temperature, and deposition time, were kept constant for all eight films; only the Mg power was varied. The microstructure and morphology, metallic bulk chemical composition ratios, and optical behavior of the deposited ZnSnN 2 thin films were examined by TEM, SEM, XRD, XPS, and Reflectance analysis, where the film properties indicate the formation of Mg 3 N 2 . Although Mg atoms did not seem to substitute in the lattice sites of ZnSnN 2 , there is an indication of possible lattice-interstitial insertions, because of the noticeable changes in their sizes. As confirmed by XRD and cross-section TEM studies, adding Mg has affected grain sizes and resulted in the formation of a Si-N-rich layer at the film-substrate interface. These results provide insight into the role of Mg in defect and interface engineering of ZnSnN₂, offering new directions for display and optoelectronic applications. • Mg-doped ZnSnN₂ thin films were successfully deposited by reactive magnetron co-sputtering at room temperature. • ZnSnN₂ lattice structure remains stable under increasing Mg sputtering power. • Mg incorporation reduces ZnSnN₂ grain size and alters preferred growth orientations. • A Si–N-rich interfacial layer forms due to nitrogen diffusion into the Si substrate. • Optical interference shifts and enhanced reflectance arise from Mg₃N₂ and increased thickness. • Mg incorporation of ZnSnN₂, offering new directions for display and optoelectronic applications.
Enhanced Photocatalysis with Pt@PMMA/Ag3PO4 Nanocomposite: An Effective Strategy for Rapid Pesticide and Dye Degradation under Visible Light
Mohd Faisal, Jahir Ahmed, Jari S. Algethami, Joselito P. Labis, Ahmed Mohamed El‐Toni, Farid A. Harraz
Chemphotochem, 2026
Freshwater pollution is a critical global issue, requiring efficient, eco‐friendly treatment technologies. In this study, a new ternary nanocomposite photocatalyst was fabricated by combining silver phosphate (Ag 3 PO 4 ) with platinum nanoparticles (Pt NPs) and polymethyl methacrylate (PMMA), a flexible long‐chain polymer. The nanocomposite was prepared using coprecipitation, ultrasonic blending, and light‐induced reduction. Structural and chemical analyses confirmed successful integration of all components. (XRD) X‐ray Diffraction verified the body‐centered‐cubic phase of Ag 3 PO 4 , while X‐ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FTIR) spectroscopy evidenced the presence and interaction of Ag 3 PO 4 , Pt, and PMMA. (TEM) Transmission Electron Microscopy revealed PtNPs (5–15 nm) uniformly anchored to the PMMA‐coated Ag 3 PO 4 surface, displaying varied morphological features. Optical characterization via UV–vis spectroscopy showed a clear reduction in bandgap, enhancing visible light absorption. The Pt@PMMA/Ag 3 PO 4 photocatalyst demonstrated outstanding contaminant removal under visible light, achieving 94.20% breakdown of imidacloprid (IM) insecticide in 60 min and near‐total removal of acridine orange (ACO) dye in just 15 min. This enhanced performance is attributed to increased light utilization from Pt, larger reactive surface area, and efficient charge separation and transport facilitated by the polymer network, as evidenced by photocurrent response and reduced photoluminescence. The currently developed Pt@PMMA/Ag 3 PO 4 nanocomposite shows strong potential as a high‐performance, sustainable photocatalyst for light‐driven water purification.
Synthesis of seashell-like amino-functionalized mesoporous silica nanoparticles for uranium adsorption
Ahmed Mohamed El-Toni, Huda Al Neafie, Mohamed A. Habila, Mohamed Sheikh Moshab, Joselito Labis, et al.
Separation Science and Technology Philadelphia, 2026
Synthesis of Sn-ZnO nanostructures on MgO<0001> by hybrid pulsed laser ablation and RF magnetron sputtering tandem system for CO gas-sensing application
Joselito P. Labis, Hamad A. Albrithen, Muhammad Ali Shar, Abdulaziz Alhazaa, Ahmed Algarni, Mohammad A. Alduraibi, Ahamad Imran, Ahmed Mohamed El-Toni
Journal of Saudi Chemical Society, 2024
An exceptional method of incorporating Sn ions into Zinc Oxide (ZnO) using a tandem system of Pulsed Laser Deposition (PLD) and Radio-Frequency Magnetron Sputtering (RFMS) to synthesize and functionalize ZnO nanostructures is demonstrated in this study for gas-sensing application. The RFMS power was varied up to 50 W to sputter a pure Sn metal target, while simultaneously or successively growing ZnO nanostructures on a templated MgO < 0001 > substrate and on an Au-plated Al 2 O 3 gas sensor, via PLD process at the substrate temperature of 700 °C in 100–500 millitorr oxygen/argon gas background. The morphologies of the grown Sn-ZnO nanostructures were characterized by Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), and X-ray Diffraction (XRD), and while their chemical/oxidation states and optical properties were analyzed by X-ray photospectroscopy (XPS) and photoluminescence (PL), respectively. For simultaneous deposition, the resulting (0002)-dominated 2D grain-like ZnO nanostructures were influenced by the interaction of the dynamic PLD plasma with static RFMS plasma at different powers. For successive growth, at 50 W-RF power, a remarkable increase in the sensor response to 50-ppm carbon monoxide (CO) gas was observed at 250 °C, which could be attributed to the creation of more adsorption sites in the Sn-ZnO depletion region caused by the replacement of some Zn sites with Sn ions in the ZnO matrix. This study, therefore, exhibits the viability of this hybrid system to design, synthesize, and functionalize Sn-ZnO nanomaterials, either by simultaneous/successive deposition, for gas-sensing applications.
Investigation of adsorptive removal of heavy metals onto magnetic core-double shell nanoparticles: kinetic, isotherm, and thermodynamic study
Ahmed Mohamed El-Toni, Mohamed Habila, Mohamed Sheikh, Abdulrhman S Al-Awadi, J P Labis, Zeid A ALOthman
Materials Research Express, 2024
The most perilous environmental hazards arise from the contamination of water by heavy metal ions, owing to the non-biodegradability of these metals, as well as their rapid dissemination throughout components of the environment via the food chain. Nano-based adsorbents have been used for the adsorption removal of many heavy metal cations, but separating and recycling them represent significant difficulties in processing. Magnetic core–double shell nanoparticles provide an attractive solution for processing issues, since they are stable and can be easily separated and recycled. Moreover, the shell thickness, composition, and porosity can be easily tuned. In this work, two samples consisting of magnetic core@TiO2@mesoSiO2 nanoparticles with two shell thicknesses (Mag-T-S-0.2 and Mag-T-S-0.4), along with a magnetic core@SiO2@TiO2 nanoparticle sample (Mag-S-T), were synthesized and characterized by TEM, XRD, magnetic strength measurement and zeta potential. TEM images show the developed core–double shell structure with double shell ranging from 60 to 73 nm. The XRD results indicate the impact of the outer shell on the diffraction pattern. The zeta potential shows that all samples had a negative charge at pH over 4. The magnetic character was suppressed after the formation of the double-shell coating; however, the magnetic core–double shell nanoparticles still had magnetization and could be separated when an external magnetic field was applied. The heavy metal adsorptive ability of Mag-T-S-0.2, Mag-T-S-0.4, and Mag-S-T samples was explored to investigate the effects of shell type and thickness along with kinetic, isotherm, and thermodynamic study. The investigated heavy metals included Cd(II), Ni(II), Mn(II), Pb(II), and Cu(II). The results indicate that, for Mag-T-S-0.2, the equilibrium state occurred after 15 min contact time, with adsorption capacity of 238, 230, 210.6, 181.8, and 245.8 mg/g for Cd(II), Ni(II), Mn(II), Pb(II), and Cu(II), respectively. For Mag-T-S-0.4, the equilibrium state occurred after 15 min contact time, with adsorption capacity of 241, 237.6, 173.8, 189.6, and 257.2 mg g−1, respectively. For Mag-S-T, the equilibrium state occurred after 25 min contact time, with adsorption capacity of 137.8, 131.4, 221, 189.6, and 149.4 mg g−1, respectively. When pseudo-first-order and pseudo-second-order kinetic models were applied to investigate the time interval adsorption data for Mag-T-S-0.2, Mag-T-S-0.4, and Mag-S-T samples, the second-order kinetic model was found to be more suitable for describing the process, indicating a fast adsorption mechanism. The adsorption data did not fit well with the Langmuir model, while they did fit well with the Freundlich model, suggesting heterogeneous material surfaces and multi-layer adsorption. Thermodynamic investigations confirmed the spontaneous nature of adsorptive removal, which helps to promote magnetic core@TiO2@mesoSiO2 and magnetic core@SiO2@TiO2 nanoparticles as effective adsorbents for wastewater treatment.
TiO2-Polyurethane Cocopol Blend Nanocomposites as an Anticorrosion Coating for Mild Steel
Archie Gomera Ruda, Marjune Tamayo Bonilla, Kurt Sterling M. Ubas, Amierson C. Tilendo, Dave Joseph E. Estrada, Rey Capangpangan, Rey Marc T. Cumba, Joselito P. Labis, Noel Lito B. Sayson, Arnold C. Alguno
Solid State Phenomena, 2024
Mild steels were the most frequently used materials in industries and factories since it possesses unique properties but due to weak environmental changes, these cause deterioration and corrosion to the materials’ surface. To prevent such, protective coatings were applied to protect against corrosion in which by incorporating titanium nanoparticles in polyurethane coatings. Titanium nanoparticles were synthesized using titanium butoxide as a precursor. The obtained nanoparticles were used as an inhibitor mixed with coconut oil-based polyurethane polyol blend against the corrosion on mild steel of 3.5% of sodium chloride solution which has been investigated using the Tafel polarization technique. The polarization curves of the corrosion potential for bare mild steel, along with different amounts of titanium nanoparticles coating, exhibit a positive shift. This shift indicates that the coating film effectively reduces the transport path for the corrosive solution, providing a protective barrier against corrosion. This observation is further supported by the results of the adhesive strength test, which demonstrates that the attachment of the coating films to the metal increases with higher amounts of titanium nanoparticles. This indicates improved adhesion and a stronger bond between the coating and the substrate, enhancing the overall corrosion resistance. The increase of contact angle test confirms the improvement of the coating’s hydrophobicity with the addition of titanium nanoparticles. This suggests that the coating repels water more effectively, further contributing to its protective properties against corrosion. Results also show that the addition of 4wt% of titanium nanoparticles has better anti-corrosion properties than the PU CCP alone, and 0.5, 1.0, and 2.0wt% of titanium added.
Facile synthesis of Pd nanoparticles dispersed polypyrrole-carbon black/NiO nanocomposite with enhanced photocatalytic degradation of colored and colorless organic pollutants
M. Faisal, Jahir Ahmed, Mohammed Jalalah, Ahmed Mohamed El-Toni, Joselito P. Labis, Aslam Khan, Farid A. Harraz
Colloids and Surfaces A Physicochemical and Engineering Aspects, 2023
Au nanoparticles dispersed chitosan/ZnO ternary nanocomposite as a highly efficient and reusable visible light photocatalyst
M. Faisal, Jahir Ahmed, Jari S. Algethami, Ahmed Mohamed El-Toni, Joselito P. Labis, Aslam Khan, Farid A. Harraz
Materials Science in Semiconductor Processing, 2023
Fabrication of Fe3O4 core-TiO2/mesoSiO2 and Fe3O4 core-mesoSiO2/TiO2 Double Shell Nanoparticles for Methylene Blue Adsorption: Kinetic, Isotherms and Thermodynamic Characterization
Ahmed Mohamed El-Toni, Mohamed A. Habila, Mohamed Sheikh, Mohamed El-Mahrouky, Abdulrhman S. Al-Awadi, Joselito P. Labis, Zeid A. ALOthman
Nanomaterials, 2023
Herein, Fe3O4 core-TiO2/mesoSiO2 and Fe3O4 core-mesoSiO2/TiO2 double shell nanoparticles were prepared by first (R1) and second (R2) routes and applied for the removal of methylene blue. The reported adsorption capacities for R1-0.2, R1-0.4 and R2 samples were 128, 118 and 133 mg.g−1, respectively, which were obtained after 80 min as equilibrium contact time, and pH of 6 using a methylene blue concentration of 200 ppm. The adsorption of methylene blue using the prepared Fe3O4 core-meso SiO2/TiO2 double shell was analyzed by kinetic and isotherms models. In addition, thermodynamic investigations were applied to assess the spontaneous nature of the process. The obtained results confirmed that the pseudo-second order model is well fitted with the adsorption data and the Freundlich-isotherm assumption suggested a multilayer adsorption mechanism. In addition, results of the thermodynamic investigation indicated that ΔG° was in the range of −2.3 to −6.8 kJ/mol for R1-0.2, −2.8 to −6.3 kJ/mol for R1-0.4 and −2.0 to −5.2 kJ/mol for R2. In addition, the ΔH° and ΔS° values were found in the range of 26.4 to 36.19 kJ.mol−1 and 94.9 to 126.3 Jmol−1 K−1, respectively. These results confirm that the surfaces of Fe3O4 core-mesoSiO2/TiO2 and Fe3O4 core-TiO2/mesoSiO2 double shell exhibit a spontaneous tendency to adsorb methylene blue from the aqueous solutions. The achieved performance of Fe3O4 core-meso SiO2/TiO2 and Fe3O4 core-TiO2/meso SiO2 double shell as adsorbent for methylene blue removal will encourage future research investigations on the removal of a broad range of contaminants from wastewater.
Optimization of Pulsed Laser Ablation and Radio-Frequency Sputtering Tandem System for Synthesis of 2D/3D Al2O3-ZnO Nanostructures: A Hybrid Approach to Synthesis of Nanostructures for Gas Sensing Applications
Joselito Puzon Labis, Hamad A. Albrithen, Mahmoud Hezam, Muhammad Ali Shar, Ahmad Algarni, Abdulaziz N. Alhazaa, Ahmed Mohamed El-Toni, Mohammad Abdulaziz Alduraibi
Nanomaterials, 2023
Effects of Zinc Oxide and Silicon Dioxide Nanoparticles on Physiological, Yield, and Water Use Efficiency Traits of Potato Grown under Water Deficit
Wadei A. Al-Selwey, Abdullah A. Alsadon, Abdullah A. Ibrahim, Joselito P. Labis, Mahmoud F. Seleiman
Plants, 2023
Development and Characterization of Epoxy/Banana Pseudo-Stem Nanocellulose (BPNC) Composites as Anti-Corrosion Coatings on Mild Steel
Kurt Sterling M. Ubas, Jessalyn C. Grumo, Archie Gomera Ruda, Marjune Tamayo Bonilla, Aaron Andrew B. Mutia, Joselito P. Labis, Noel Lito B. Sayson, Arnold C. Alguno
Solid State Phenomena, 2023
Anti-Corrosion Properties of Polyaniline/Polyurethane Composite Coatings on Mild Steel Using Coconut-Based/PPG Blend Polyols
Marjune Tamayo Bonilla, Archie Gomera Ruda, Dave Joseph E. Estrada, Kurt Sterling M. Ubas, Aaron Andrew B. Mutia, Arnold A. Lubguban, Rey Y. Capangpangan, Joselito P. Labis, Amierson C. Tilendo, Noel Lito B. Sayson, Arnold C. Alguno
Solid State Phenomena, 2023
Facile synthesized NaGdF4:Yb,Er peanut-shaped, highly biocompatible, colloidal upconversion nanospheres
Anees A. Ansari, Joselito P. Labis, Aslam Khan
Luminescence, 2022
Biocompatible NaYF4:Yb,Er upconversion nanoparticles: Colloidal stability and optical properties
Anees A. Ansari, Joselito P. Labis, Aslam Khan
Journal of Saudi Chemical Society, 2021
ZnO Nanosheet-Nanowire morphology tuning for Dye-sensitized solar cell applications
Mahmoud Hezam, Mohammed Qasi Alsubaie, Ahmad Algarni, Hamid Ghaithan, Joselito Labis, Mohammad Alduraibi
Chemical Physics Letters, 2021
Hydrothermal growth optimization of vertically aligned ZnO nanowire arrays and their dye-sensitized solar cell performance under air/oxygen environments
Mahmoud Hezam, Ahmad Algarni, Hamid Ghaithan, Husain Alzahrani, Aqeel Alshehri, Abdulaziz Alfarhoud, Joselito Labis, Mohammad Alduraibi
Materials Research Express, 2021
Physiochemical characterization of highly biocompatible, and colloidal LaF3:Yb/Er upconversion nanoparticles
Anees A. Ansari, Abdul K. Parchur, Joselito P. Labis, Muhammad Ali Shar
Photochemical and Photobiological Sciences, 2021
Highly hydrophilic CaF2:Yb/Er upconversion nanoparticles: Structural, morphological, and optical properties
Anees A Ansari, Abdul K. Parchur, Joselito P. Labis, Muhammad Ali Shar, Aslam Khan
Journal of Fluorine Chemistry, 2021
Mesoporous organo‐silica supported chromium oxide catalyst for oxidative dehydrogenation of ethane to ethylene with co2
Abdulrhman S. Al-Awadi, Ahmed Mohamed El-Toni, Joselito P. Labis, Aslam Khan, Hamid Ghaithan, Attiyah A. Al-Zahrani, Ahmed E. Abasaeed, Saeed M. Al-Zahrani
Catalysts, 2021
A novel Ag/PANI/ZnTiO3 ternary nanocomposite as a highly efficient visible-light-driven photocatalyst
M. Faisal, Mohammed Jalalah, Farid A. Harraz, Ahmed Mohamed El-Toni, Joselito P. Labis, M.S. Al-Assiri
Separation and Purification Technology, 2021
Review - Modulation of Dielectric, Ferroelectric, and Piezoelectric Properties of Lead-Free BCZT Ceramics by Doping
Ritesh Verma, Ankush Chauhan, Khalid Mujasam Batoo, Rohit Jasrotia, Anand Sharma, Rajesh Kumar, Muhammad Hadi, Emad H. Raslan, Joselito Puzon Labis, Ahamad Imran
Ecs Journal of Solid State Science and Technology, 2021
Catalytic performance of the Ce-doped LaCoO3 perovskite nanoparticles
Anees A. Ansari, Syed F. Adil, Manawwer Alam, N. Ahmad, Mohamed E. Assal, Joselito P. Labis, Abdulrahman Alwarthan
Scientific Reports, 2020
Facile synthesis of Pd@graphene nanocomposites with enhanced catalytic activity towards Suzuki coupling reaction
Mujeeb Khan, Mohammed Rafi Shaik, Syed Farooq Adil, Mufsir Kuniyil, Muhammad Ashraf, Hajo Frerichs, Massih Ahmad Sarif, Mohammed Rafiq H. Siddiqui, Abdulrahman Al–Warthan, Joselito P. Labis, Mohammad Shahidul Islam, Wolfgang Tremel, Muhammad Nawaz Tahir
Scientific Reports, 2020
Enhanced photocatalytic reduction of Cr(VI) on silver nanoparticles modified mesoporous silicon under visible light
Mohd Faisal, Farid A. Harraz, Ali E. Al‐Salami, Ahmed Mohamed El‐Toni, Abdulrhman A. Almadiy, Aslam Khan, Joselito P. Labis, Saleh A. Al‐Sayari, Mohammad S. Al‐Assiri
Journal of the American Ceramic Society, 2019
Role of TiO2 nanoparticle modification of Cr/MCM41 catalyst to enhance Cr-support interaction for oxidative dehydrogenation of ethane with carbon dioxide
Abdulrhman S. Al-Awadi, Ahmed Mohamed El-Toni, Saeed M. Al-Zahrani, Ahmed E. Abasaeed, Mansour Alhoshan, Aslam Khan, Joselito P. Labis, Ahmed Al-Fatesh
Applied Catalysis A General, 2019
Designing zinc oxide nanostructures (nanoworms, nanoflowers, nanowalls, and nanorods) by pulsed laser ablation technique for gas-sensing application
Joselito P. Labis, Anwar Q. Al‐Anazi, Hamad A. Al‐Brithen, Mahmoud Hezam, Mohammad Abdulaziz Alduraibi, Ahmad Algarni, Abdulaziz A. Alharbi, Abdulrhman S. Al‐Awadi, Aslam Khan, Ahmed Mohamed El‐Toni
Journal of the American Ceramic Society, 2019
Fabrication of robust nanostructured (Zr)BiVO4/nickel hexacyanoferrate core/shell photoanodes for solar water splitting
Maged N. Shaddad, Prabhakarn Arunachalam, Joselito Labis, Mahmoud Hezam, Abdullah M. Al-Mayouf
Applied Catalysis B Environmental, 2019
Synthesis, characterization and relative catalytic study of ZrOx-MnCO3, - MnO2or -Mn2O3 deposited on highly reduced graphene oxide nanocomposites for aerobic oxidation of secondary alcohols
Indian Journal of Chemical Technology, 2019
Aqueous dispersible green luminescent yttrium oxide:terbium microspheres with nanosilica shell coating
Anees A. Ansari, Naushad Ahmad, Joselito P. Labis, Ahmed Mohamed El-Toni, Aslam Khan
Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, 2019
Solvothermal preparation and electrochemical characterization of Cubic ZrO2 Nanoparticles/Highly Reduced Graphene (HRG) based nanocomposites
Mohammed Shaik, Manawwer Alam, Syed Adil, Mufsir Kuniyil, Abdulrahman Al-Warthan, Mohammed Siddiqui, Muhammad Tahir, Joselito Labis, Mujeeb Khan
Materials, 2019
Mesoporous multi-silica layer-coated Y 2 O 3 :Eu core-shell nanoparticles: Synthesis, luminescent properties and cytotoxicity evaluation
Anees A. Ansari, Aslam Khan, Joselito P. Labis, Manawwer Alam, M. Aslam Manthrammel, Maqusood Ahamed, Mohd Javed Akhtar, Ali Aldalbahi, Hamid Ghaithan
Materials Science and Engineering C, 2019
Highly colloidal luminescent porous Tb-doped gadolinium oxide nanoparticles: Photophysical and luminescent properties
Anees A. Ansari, Naushad Ahmad, Joselito P. Labis
Journal of Photochemistry and Photobiology A Chemistry, 2019
Impact of precursor sequence of addition for one-pot synthesis of Cr-MCM-41 catalyst nanoparticles to enhance ethane oxidative dehydrogenation with carbon dioxide
Abdulrhman S. Al-Awadi, Ahmed Mohamed El-Toni, Mansour Alhoshan, Aslam Khan, Joselito P. Labis, Ahmed Al-Fatesh, Ahmed E. Abasaeed, Saeed M. Al-Zahrani
Ceramics International, 2019
Synthesis, structural, and photoluminescence studies of LaF3:Pr, LaF3:Pr@LaF3, and LaF3:Pr@LaF3@SiO2 nanophosphors
Anees A. Ansari, Joselito P. Labis, M. Aslam Manthrammel
Journal of the Australian Ceramic Society, 2018
Impact of Ni Ion-Doping on Structural, Optoelectronic and Redox Properties of CeO2 Nanoparticles
Naushad Ahmad, Anees A. Ansari, Joselito P. Labis, Manawwer Alam
Journal of Electronic Materials, 2018
Highly biocompatible, monodispersed and mesoporous La(OH)3:Eu@mSiO2 core-shell nanospheres: Synthesis and luminescent properties
Anees A. Ansari, Ali Aldalbahi, Joselito P. Labis, Ahmed Mohamed El-Toni, Maqusood Ahamed, M.Aslam Manthrammel
Colloids and Surfaces B Biointerfaces, 2018
Comparative structural and optical spectroscopic studies of Nd3+ ion doped LaF3 and their core/shell nanoparticles
Anees Ansari, Joselito Labis, Mohamed Manthrammel
Processing and Application of Ceramics, 2018
Semibath Polymerization Approach for One-Pot Synthesis of Temperature- and Glucose-Responsive Core-Shell Nanogel Particles
Aslam Khan, Ahmed Mohamed El-Toni, Javed Alam, Ali Aldalbahi, Mukhtar Ahmed, Joselito Puzon Labis, Tansir Ahamad, Mahmoud Hezam
Journal of Nanomaterials, 2018
One-step carbon coating and polyacrylamide functionalization of Fe3O4 nanoparticles for enhancing magnetic adsorptive-remediation of heavy metals
Mohamed Habila, Zeid ALOthman, Ahmed Mohamed El-Toni, Joselito Puzon Labis, Aslam Khan, Adel Al-Marghany, Hussein Elsayed Elafifi
Molecules, 2017
Designing of luminescent GdPO4:Eu@LaPO4@SiO2 core/shell nanorods: Synthesis, structural and luminescence properties
Anees A. Ansari, Joselito P. Labis, M. Aslam Manthrammel
Solid State Sciences, 2017
SrZnO nanostructures grown on templated <0001> Al2O3 substrates by pulsed laser deposition
Joselito P. Labis, Anwar Q. Alanazi, Hamad A. Albrithen, Ahmed Mohamed El-Toni, Mahmoud Hezam, Hussein Elsayed Elafifi, Osama M. Abaza
Aip Advances, 2017
Carbon-coated Fe3O4 nanoparticles with surface amido groups for magnetic solid phase extraction of Cr(III), Co(II), Cd(II), Zn(II) and Pb(II) prior to their quantitation by ICP-MS
Mohamed A. Habila, Zeid A. ALOthman, Ahmed Mohamed El-Toni, Saad A. Al-Tamrah, Mustafa Soylak, Joselito Puzon Labis
Microchimica Acta, 2017
Impact of surface coating on physical properties of europium-doped gadolinium fluoride microspheres
Anees A. Ansari, Ali K. Aldalbahi, Joselito P. Labis, M. Aslam Manthrammel
Journal of Fluorine Chemistry, 2017
Preparation and Spectroscopic, Microscopic, Thermogravimetric, and Electrochemical Characterization of Silver-Doped Cerium(IV) Oxide Nanoparticles
A. A. Ansari, J. P. Labis, M. Alam, Shahid M. Ramay, N. Ahmed, Asif Mahmood
Analytical Letters, 2017
Benzyl Alcohol Assisted Synthesis and Characterization of Highly Reduced Graphene Oxide (HRG)@ZrO2 Nanocomposites
Mohammed R. Shaik, Abdulhadi H. Al‐Marri, Syed F. Adil, Nils Mohri, Bastian Barton, Mohammed R. H. Siddiqui, Abdulrahman Al‐Warthan, Joselito P. Labis, Wolfgang Tremel, Mujeeb Khan, Muhammad N. Tahir
Chemistryselect, 2017
Structural Transition in SrZnO Laser Pulse Deposited Alloy
H. A. Albrithen, M. Elnaggar, K. Ozga, M. Szota, Z. A. Alahmed, A. Q. Alanazi, H. Alshahrani, E. Alfaifi, M. A. Djouadi, J. P. Labis
Archives of Metallurgy and Materials, 2017
In-vitro cytotoxicity and cellular uptake studies of luminescent functionalized core-shell nanospheres
Anees A. Ansari, T.N. Hasan, N.A. Syed, J.P. Labis, Ali A. Alshatwi
Saudi Journal of Biological Sciences, 2017
Synthesis and comparative catalytic study of zinc oxide (ZnOx) nanoparticles promoted MnCO3, MnO2and Mn2O3for selective oxidation of benzylic alcohols using molecular oxygen
SyedF. Adil, MohamedE. Assal, Mufsir Kuniyil, Mujeeb Khan, Mohammed Rafi Shaik, Abdulrahman Alwarthan, JoselitoP. Labis, Mohammed RafiqH. Siddiqui
Materials Express, 2017
Comparative Catalytic Evaluation of Nano-ZrOx Promoted Manganese Catalysts: Kinetic Study and the Effect of Dopant on the Aerobic Oxidation of Secondary Alcohols
Mohamed E. Assal, Mufsir Kuniyil, Mujeeb Khan, Mohammed Rafi Shaik, Abdulrahman Al-Warthan, Mohammed Rafiq H. Siddiqui, Joselito P. Labis, Syed Farooq Adil
Advances in Materials Science and Engineering, 2017
Laser induced photocurrent and photovoltage transient measurements of dye-sensitized solar cells based on TiO2 nanosheets and TiO2 nanoparticles
Hamid M. Ghaithan, Saif M.H. Qaid, Mahmoud Hezam, Joselito P. Labis, Mohammad Alduraibi, Idriss M. Bedja, Abdullah S. Aldwayyan
Electrochimica Acta, 2016
Mercaptobenzothiazole-functionalized magnetic carbon nanospheres of type Fe3O4@SiO2@C for the preconcentration of nickel, copper and lead prior to their determination by ICP-MS
Mohamed A. Habila, Zeid A. ALOthman, Ahmed Mohamed El-Toni, Joselito Puzon Labis, Xiaomin Li, Fan Zhang, Mustafa Soylak
Microchimica Acta, 2016
Synthesis and application of Fe3O4@SiO2@TiO2 for photocatalytic decomposition of organic matrix simultaneously with magnetic solid phase extraction of heavy metals prior to ICP-MS analysis
Mohamed A. Habila, Zeid A. ALOthman, Ahmed Mohamed El-Toni, Joselito Puzon Labis, Mustafa Soylak
Talanta, 2016
Influence of copper ion doping on structural, optical and redox properties of CeO2 nanoparticles
Anees A. Ansari, J. Labis, M. Alam, Shahid M. Ramay, N. Ahmad, Asif Mahmood
Journal of Electroceramics, 2016
Effect of cobalt doping on structural, optical and redox properties cerium oxide nanoparticles
Anees A. Ansari, J. Labis, M. Alam, Shahid M. Ramay, N. Ahmad, Asif Mahmood
Phase Transitions, 2016
Synthesis, structural and optical properties of Mn-doped ceria nanoparticles: A promising catalytic material
Anees A. Ansari, Joselito P. Labis, Manawwer Alam, Shahid M. Ramay, Naushad Ahmad, Asif Mahmood
Acta Metallurgica Sinica English Letters, 2016
Design, synthesis and applications of core-shell, hollow core, and nanorattle multifunctional nanostructures
Ahmed Mohamed El-Toni, Mohamed A. Habila, Joselito Puzon Labis, Zeid A. ALOthman, Mansour Alhoshan, Ahmed A. Elzatahry, Fan Zhang
Nanoscale, 2016
Giant increase of optical transparency for Zn-rich CaxZn1-xO on Al2O3 (0 0 0 1) grown by pulsed laser deposition
H.A. Albrithen, A.M. El-Naggar, K. Ozga, H. Alshahrani, A. Alanazi, E. Alfaifi, J. Labis, A. Alyamani, A. Albadri, M.H. Alkahtani, Z.A. Alahmed, J. Jedryka, A.O. Fedorchuk
Optical Materials, 2016
Physicochemical and Redox Characteristics of Fe Ion-doped CeO2 Nanoparticles
Anees A. Ansari, J. Labis, Manawwer Alam, Shahid M. Ramay, Naushad Ahmad, Asif Mahmood
Journal of the Chinese Chemical Society, 2015
Pulsed laser deposition growth of 3D ZnO nanowall network in nest-like structures by two-step approach
Joselito P. Labis, Mahmoud Hezam, Anwar Al-Anazi, Hamad Al-Brithen, Anees A. Ansari, Ahmed Mohamed El-Toni, Ronaldo Enriquez, Gwénolé Jacopin, Mansour Al-Hoshan
Solar Energy Materials and Solar Cells, 2015
Pulicaria glutinosa extract: A toolbox to synthesize highly reduced graphene oxide-silver nanocomposites
Abdulhadi Al-Marri, Mujeeb Khan, Merajuddin Khan, Syed Adil, Abdulrahman Al-Warthan, Hamad Alkhathlan, Wolfgang Tremel, Joselito Labis, Mohammed Siddiqui, Muhammad Tahir
International Journal of Molecular Sciences, 2015
Ceria doped mixed metal oxide nanoparticles as oxidation catalysts: Synthesis and their characterization
S.S.P. Sultana, D.H.V. Kishore, Mufsir Kuniyil, Mujeeb Khan, Abdulrahman Alwarthan, K.R.S. Prasad, Joselito P. Labis, S.F. Adil
Arabian Journal of Chemistry, 2015
Synthesis and characterization of ZnO nanoparticles by thermal decomposition of a curcumin zinc complex
Mutasim I. Khalil, Maha M. Al-Qunaibit, Aisha M. Al-zahem, Joselito P. Labis
Arabian Journal of Chemistry, 2014
Simple and facile synthesis of amino functionalized hollow core-mesoporous shell silica spheres using anionic surfactant for Pb(II), Cd(II), and Zn(II) adsorption and recovery
Ahmed Mohamed El-Toni, Mohamed A. Habila, Mohamed Abbas Ibrahim, Joselito Puzon Labis, Zeid A. ALOthman
Chemical Engineering Journal, 2014
Comparative study on electronic, emission, spontaneous property of porous silicon in different solvents
M. Naziruddin Khan, M. A. Majeed Khan, A. S. Al Dwayyan, J. Puzon Labis
Journal of Nanomaterials, 2014
Influence of surface coating on structural and photoluminescent properties of CaMoO4:Pr nanoparticles
Anees A. Ansari, A. K. Parchur, M. Alam, J. Labis, Abdallah Azzeer
Journal of Fluorescence, 2014
In-vitro cyto-toxicity, geno-toxicity, and bio-imaging evaluation of one-pot synthesized luminescent functionalized mesoporous SiO2@Eu(OH)3 core-shell microspheres
Anees A. Ansari, Tarique N. Hasan, Naveed A. Syed, Joselito P. Labis, A.K. Parchur, Gowhar Shafi, Ali A. Alshatwi
Nanomedicine Nanotechnology Biology and Medicine, 2013
Enhanced oxygen reduction activity of IrCu core platinum monolayer shell nano-electrocatalysts
YongMan Choi, Kurian A. Kuttiyiel, Joselito P. Labis, Kotaro Sasaki, Gu-Gon Park, Tae-Hyun Yang, Radoslav R. Adzic
Topics in Catalysis, 2013
Room temperature Multiferroic properties of Nd doped Ba 4-xFeTi3O12 nanoparticles
Khalid Mujasam Batoo, Mahavir Singh, Ritu Rani, Joselito P. Labis
Journal of Alloys and Compounds, 2013
Facile synthesis of water-soluble luminescent mesoporous Tb(OH)3@SiO2 core-shell nanospheres
Anees A Ansari, Joselito Labis, Abdullah S Aldwayyan, Mahmoud Hezam
Nanoscale Research Letters, 2013
Optimization of synthesis parameters for mesoporous shell formation on magnetic Nanocores and their Application as nanocarriers for docetaxel cancer drug
Ahmed El-Toni, Mohamed Ibrahim, Joselito Labis, Aslam Khan, Mansour Alhoshan
International Journal of Molecular Sciences, 2013
Preparation and photoluminescence properties of hydrothermally synthesized YVO 4:Eu 3 nanofibers
Anees A. Ansari, Joselito P. Labis
Materials Letters, 2012
Synthesis of magnetic coremesoporous silica shell nanoparticles using anionic surfactant and their application for ketoprofen control release
Ahmed Mohamed El-Toni, Aslam Khan, Joselito Puzon Labis, Mohamed Abbas Ibrahim, Mansour Al-hoshan
Chemistry Letters, 2012
Fabrication of mesoporous silica shells on solid silica spheres using anionic surfactants and their potential application in controlling drug release
Ahmed El-Toni, Aslam Khan, Mohamed Ibrahim, Mansour Al-Hoshan, Joselito Labis
Molecules, 2012
One-pot synthesis and photoluminescence properties of luminescent functionalized mesoporous SiO 2@Tb(OH) 3 core-shell nanospheres
Anees A. Ansari, Joselito P. Labis
Journal of Materials Chemistry, 2012
Synthesis of water-soluble luminescent LaVO4:Ln3+ porous nanoparticles
Anees A. Ansari, Joselito P. Labis, Salman A. H. Alrokayan
Journal of Nanoparticle Research, 2012
Synthesis of double mesoporous core-shell silica spheres with tunable core porosity and their drug release and cancer cell apoptosis properties
Ahmed Mohamed El-Toni, Aslam Khan, Mohamed Abbas Ibrahim, Joselito Puzon Labis, Gamal badr, Mansour Al-Hoshan, Shu Yin, Tsugio Sato
Journal of Colloid and Interface Science, 2012
Ferroelectric and magnetic properties of Nd-doped Bi4 - xFeTi3O12 nanoparticles prepared through the egg-white method
Khalid Mujasam Batoo, Joselito Puzan Labis, Ritu Sharma, Mahavir Singh
Nanoscale Research Letters, 2012
Impact of textural properties of double mesoporous coreshell silica nanospheres on drug loading and in vitro release
Digest Journal of Nanomaterials and Biostructures, 2012
Luminescent mesoporous LaVO4:Eu3+ core-shell nanoparticles: Synthesis, characterization, biocompatibility and their cytotoxicity
Anees A. Ansari, Manawwer Alam, Joselito P. Labis, S. A. Alrokayan, Gowhar Shafi, T. N. Hasan, N. A. Syed, Ali. A. Alshatwi
Journal of Materials Chemistry, 2011
Ethanol reactions over Ru-Pt/CeO 2 catalysts
ACS National Meeting Book of Abstracts, 2011
Determination of the microstructure of Eu-treated ZnO nanowires by x-ray absorption
W. L. Huang, J. Labis, S. C. Ray, Y. R. Liang, C. W. Pao, H. M. Tsai, C. H. Du, W. F. Pong, J. W. Chiou, M.-H. Tsai, H. J. Lin, J. F. Lee, Y. T. Chou, J. L. Shen, C. W. Chen, G. C. Chi
Applied Physics Letters, 2010
Surface analyses of Zr (film)/4H-siC (substrate) by synchrotron radiation induced-PEEM
C. Kamezawa, M. Hirai, M. Kusaka, M. Iwami, J. Labis
Applied Surface Science, 2004
High-resolution photoemission electron spectroscopy study on the oxynitridation of 6H-SiC(0001)-√3 × √3R30° surface
J. Labis, J. Oh, H. Namatame, M. Taniguchi, M. Hirai, M. Kusaka, M. Iwami
Applied Surface Science, 2004
Solid phase reaction in Ti(thin film)/Si(substrate) with Mo interlayer: SXES and PEEM study
J. Labis, H. Namatame, M. Taniguchi, C. Kamezawa, M. Hirai, M. Kusaka, M. Iwami
Thin Solid Films, 2004
Nano-structure of transition-metal (Ti, Ni)/SiC system: Photo-emission electron microscopy and soft X-ray fluorescence spectroscopy
Masaaki Hirai, Joselito P. Labis, Akihiko Ohi, Chihiro Kamezawa, Yuhji Morikawa, Kenichi Yoshida, Masahiko Kusaka, Motohiro Iwami
Applied Surface Science, 2003
Surface morphology and interface structural analyses of Ti(film)/SiC(substrate) by PEEM, SXES, AES and XRD
Joselito Labis, Akihiko Ohi, Masaaki Hirai, Masahiko Kusaka, Motohiro Iwami
Surface and Interface Analysis, 2003
Soft X-ray emission study of thermally treated Ni(film)/4H-SiC(substrate) interface
A. Ohi, J. Labis, Y. Morikawa, T. Fujiki, M. Hirai, M. Kusaka, M. Iwami
Applied Surface Science, 2002
Surface and interface of Ti(film)/SiC(substrate) system: A soft X-ray emission and photoemission electron microscopy study
Joselito Labis, Akihiko Ohi, Chihiro Kamezawa, Kenichi Yoshida, Masaaki Hirai, Masahiko Kusaka, Motohiro Iwami
Applied Surface Science, 2002
PEEM and SXES characterization on the surface and interface of the transition-metal/SiC system
JOSELITO LABIS, AKIHIKO OHI, CHIHIRO KAMEZAWA, TOSHINORI FUJIKI, KENICHI YOSHIDA, MASAAKI HIRAI, MASAHIKO KUSAKA, MOTOHIRO IWAMI
Surface Review and Letters, 2002
Photoemission electron imaging of transition metal (Ti, Ni) surfaces on Si and SiC
Joselito Labis, Chihiro Kamezawa, Masaaki Hirai, Masahiko Kusaka, Motohiro Iwami
Materials Science Forum, 2002
Interfacial reaction study of thermally annealed Ti film on 4H-SiC by soft X-ray emission spectroscopy
J Labis, A Ohi, M Hirai, M Kusaka, M Iwami
Surface Science, 2001
Study on Ti/C-terminated 4H- and 6H-SiC interface reactions by soft X-ray emission spectroscopy (SXES)
Shinku Journal of the Vacuum Society of Japan, 2001

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