Development of formaldehyde-free wood adhesive resins using oil palm’s nano lignin particles Suhashne Selvam, Muhammad Bisyrul Hafi Othman, Mohamad Nasir Mohamad Ibrahim, Nolann Lucas, Victor Girard, Christelle Perrin, Stéphane Aubert, Fabrice Mutelet, Pandian Bothi Raja, M. Hazwan Hussin, Nicolas Brosse, Isabelle Ziegler-Devin Journal of Phytology, 2026 The quest for green, sustainable substitutes for petroleum-derived adhesives has accelerated amid rising environmental concerns and the rapid depletion of fossil fuels. This work investigated the potential application of lignin nanoparticles (LNPs) derived from oil palm empty fruit bunch (OPEFB) in a bio-based adhesive system. The organosolv technique was effective in extracting relatively pure lignin from the biomass, as evidenced by the extracted lignin’s 88.94% purity and 75.10% recovery efficiency. The lignin was successfully converted to LNPs via antisolvent precipitation. Stable nanoparticle formation was indicated by Dynamic Light Scattering (DLS), which showed an average particle size of 163.38 nm and a zeta potential of -15.6 mV. At loadings of 10%, 30%, and 50%, the LNPs were evaluated as reinforcements in resin. At 30% loading, tensile strength reached a maximum of 19.15 MPa. This highlights the promise of OPEFB-derived lignin as an effective reinforcing agent in adhesives and a renewable constituent for environmentally friendly polymer products.
TMPTA crosslinker UV-grafted BPADA-BAPP polyimide thin films: Thermo-chemical stability and structural characterization Xinyi Lim, Najihah Zulkifli, Muhammad Bisyrul Hafi Othman, Mohamad Nurul Azmi, Mohd Ridhwan Adam, Nor Azura Abdul Rahim Pure and Applied Chemistry, 2025 Polyimide is widely used as a membrane construction material in gas separation, fuel cell, and desalination applications. Nevertheless, excessive crosslinking in polyimide can lead to brittleness, compromising its performance. Hence, this study focuses on the thermo-chemical stability properties of TMPTA grafted BPADA-BAPP polyimide thin film, prepared from BPADA and BAPP monomer via conventional two step method, followed by UV-crosslinked by UV irradiation using 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide (TPO) as photo-initiator and trimethylolpropane tri-acrylate (TMPTA) as crosslinker. The structural characterization of TMPTA grafted BPADA-BAPP polyimide by Fourier Transform Infra-Red (FT-IR) showed the presence of TMPTA crosslinker at 1725 cm−1 (C=O) and a slight decrease in intensity at 1635 cm−1 (C=C), suggesting successful grafting of TMPTA. Furthermore, the 1H NMR signals at regions around 4.1 ppm and 5.5–6.5 ppm indicated that the BPADA-BAPP PI backbone was grafted with TMPTA. Thermogravimetric Analysis (TGA) showed no significant changes in thermal degradation temperature (Tmax) (177.09 °C, 479.40 °C, 179.62 °C, 480.26 °C) as the exposure time increases (0.5 min, 5 min, 15 min & 30 min) but the decrement can be seen in glass transition temperature (Tg) (218, 178, 173, 164, 170 °C). The TMPTA grafted BPADA-BAPP PI series demonstrated high chemical stability, being insoluble in strongly acidic (HCl, H2SO4), polar aprotic (Acetone, DMSO), polar protic (Distilled water, Methanol) and non-aprotic (Hexane) solvent respectively. Moreover, water uptake percentage showed decrement in values (4.75 %, 3.17 %, 3.88 %, 1.60 %) with the increment of exposure time in UV-irradiation. These findings suggested that TMPTA had been grafted to the BPADA-BAPP PI backbone along with the enhancement of thermo-chemical stability while maintaining its flexibility.
Acid-activated natural zeolite clinoptilolite functionalized with curcumin for superior methylene blue adsorption: Insights into optimization, characterization, and adsorption mechanisms Nur Fatin Atikah Abdul Mutalib, Azat Seitkhan, Muhammad Bisyrul Hafi Othman, Abdul Qaiyum Ramle, Norliyana Mohd Salleh, Mohd Hafiz Dzarfan Othman, Siti Khadijah Hubadillah, Mohd Riduan Jamalludin, Nur Nabihah Yusof, Mohd Ridhwan Adam Pure and Applied Chemistry, 2025 This study investigates the treatment of natural zeolite clinoptilolite (NZC) through acid and base pretreatments, aiming to enhance its adsorption efficiency for methylene blue (MB) dye removal. The results indicate that NZC treated with 3.0 M HCl (hydrochloric acid) exhibits superior MB removal efficiency (93.24 %) compared to 1.0 M NaOH (sodium hydroxide)-treated NZC (91.40 %), accompanied by a higher Brunauer–Emmett–Teller (BET) surface area (135.5002 m2/g) in contrast to (43.6059 m2/g). The optimized 3.0 M HCl-treated NZC is further functionalized with curcumin, resulting in CUR-HCl-NZC, which demonstrates enhanced MB removal efficiencies of 95.09 % at 45 min and 83.81 % at 90 min, surpassing untreated NZC. The adsorption parameters, including contact time (45 min), adsorbent dosage (0.2 g), and initial dye concentration (25 ppm), are systematically varied to optimize the conditions for CUR-HCl-NZC. Characterization through Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and BET analysis confirm the successful binding of curcumin to HCl-treated NZC, revealing structural and surface modifications. BET analysis shows that the surface area of CUR-HCl-NZC is 100.0382 m2/g, indicating changes in porosity due to curcumin modifications. The isotherm analysis identifies the Langmuir isotherm model as the best fit, with a correlation coefficient (R 2) of 0.9996 and adsorption capacity of 41.203 mg/g, suggesting monolayer adsorption dominance. This study establishes CUR-HCl-NZC as an effective, low-cost adsorbent for the removal of MB, offering a promising solution for water purification applications.
In vitro Antiplasmodial and Molecular Docking Studies of Chemical Constituent Isolated from the Bark of Diospyros lanceifolia (Ebenaceae) Ibrahim Dankane Bafarawa, Muhammad Solehin Abd Ghani, Arba Pramundita Ramadani, Shofiatul Fuadah, Sista Werdyani, Unang Supratman, Muhammad Bisyrul Hafi Othman, Mohamad Nasir Mohamad Ibrahim, Khalijah Awang, Marc Litaudon, Habibah A. Wahab, Mohamad Nurul Azmi Tropical Life Sciences Research, 2025 The phytochemical investigations of the ethyl acetate bark extract of Diospyros lanceifolia have led to the isolation of eight compounds, namely lupeol (1), betulin (2), ?-sitosterol (3), oleic acid (4), ?-amyrin acetate (5) glyceryl trilinoleate (6), ?-amyrin (7) and shinanolone (8). The structures of all compounds were established using various spectroscopic techniques such as 1D and 2D-NMR, FT-IR and HRESIMS, which were then compared with reported literature for validation. All compounds isolated from this plant were screened for an in vitro study against Plasmodium falciparum FCR3 followed by an in silico molecular docking study with the PfATP6 protein. The in vitro results revealed that five compounds exhibited strong to good activity (IC50 < 10 ?M). In order of potency, these compounds include 5, 3, 6, 1 and 4 with IC50 values of 0.3 ± 0.3, 0.3 ± 0.3, 1.9 ± 2.2, 4.4 ± 7.4 and 8.4 ± 4.9 ?M, respectively. Compounds 5 and 3 showed the strongest activity compared to the control drugs artemisinin and chloroquine, with the IC50 of 0.7 ± 0.3 ?M and 10.3 ± 2.9 ?M, respectively. The in silico molecular docking simulations showed that all active compounds from the in vitro study displayed good binding affinity to the PfATP6 protein binding site, with compounds 3, 1 and 5 demonstrating greater binding affinity compared to the other compounds tested, including artemisinin and chloroquine. All compounds exhibited several hydrophobic interaction modes with amino acids of PfATP6 residues. Interestingly, all compounds exhibited hydrogen bonding with ASN1039 residue, except compound 3. The in silico study of these compounds supports the in vitro antiplasmodial activity findings, suggesting that these compounds are potential lead candidates for the development of new antiplasmodial drugs.
Biomedical applications of polymer and biopolymer nanocomposites Nur Azira Tukiran, Muhammad Bisyrul Hafi Othman, Amal A.M. Elgharbawy, Muhamad Shirwan Abdullah Sani, Najihah Mohd Noor Polymer and Biopolymer Nanocomposites Recent Advances and Applications, 2025
Advanced sulfonated polyimide membrane technology: From synthesis to properties Xinyi Lim, Muhammad Bisyrul Hafi Othman, Mohamad Nurul Azmi, Mohd Ridhwan Adam, Nuru-Deen Jaji, Norlin Nosbi Desalination and Water Treatment, 2025 In recent years, Sulfonated polyimide membrane technology has witnessed significant advancements, driven by the demand for efficient and sustainable membrane applications including desalination, fuel cell and wastewater treatment. This review presents a comprehensive overview of major developments in sulfonated polyimide (SPI) synthesis methodologies, including its necessary conditions and parameters. Additionally, it explores the incorporation of functional groups into substituent groups, emphasizing their effects on membrane performance, such as ion conductivity, mechanical strength, and thermal stability. Furthermore, the review includes an analysis of SPI membranes, covering characterization techniques like FTIR and NMR, as well as examining membrane morphology through SEM. These advancements provide researchers with a deeper understanding of the synthesis methods of SPI and its properties. • Insight into directions for development advanced sulfonated polyimide membranes. • Synthesis strategies, polymerization methods and functionalization are discussed in detail. • Highlighting the availability of fabrication techniques and their limitations. • Offering a thorough understanding of SPI synthesized via characterization and exploration of properties.
Incorporation of hydroxyl terminated polydimethylsiloxane into dgeba epoxy resins via condensation of hydroxyl groups: Preliminary approach Walailak Journal of Science and Technology, 2016
Biomedical applications of polymer and biopolymer nanocomposites NA Tukiran, MBH Othman, AAM Elgharbawy, MSA Sani, NM Noor Polymer and Biopolymer Nanocomposites: Recent Advances and Applications, 193 , 2025 2025
Efficient Adsorptive Removal of Methylene Blue Using Acid-and Alkali-Modified Clinoptilolite–Alginate Beads: High-Capacity Monolayer Adsorbents for Wastewater Treatment and … NFAA Mutalib, D Kulbatyrova, A Kanbetova, TG Yerlanovna, A Seitkhan, ... Journal of Applied Membrane Science & Technology 29 (3), 291-303 , 2025 2025
Hemisynthesis of lupeol and betulin derivatives and their in vitro antimalarial activity against Plasmodium falciparum FCR3 ID Bafarawa, MS Abd Ghani, AP Ramadani, S Fuadah, MBH Othman, ... Natural Product Research, 1-10 , 2025 2025
Revolutionizing dye removal in wastewater: An optimization study of curcumin-functionalized zeolite beads for methylene blue adsorption NFAA Mutalib, A Seitkhan, MBH Othman, AQ Ramle, NM Salleh, ... Surfaces and Interfaces, 107434 , 2025 2025 Citations: 5
TMPTA crosslinker UV-grafted BPADA-BAPP polyimide thin films: thermo-chemical stability and structural characterization X Lim, N Zulkifli, MBH Othman, MN Azmi, MR Adam, NAA Rahim Pure and Applied Chemistry 97 (8), 897-909 , 2025 2025
Acid-activated natural zeolite clinoptilolite functionalized with curcumin for superior methylene blue adsorption: insights into optimization, characterization, and adsorption … NFAA Mutalib, A Seitkhan, MBH Othman, AQ Ramle, NM Salleh, ... Pure and Applied Chemistry 97 (8), 841-863 , 2025 2025 Citations: 2
In vitro Antiplasmodial and Molecular Docking Studies of Chemical Constituent Isolated from the Bark of Diospyros lanceifolia (Ebenaceae) ID Bafarawa, MS Abd Ghani, AP Ramadani, S Fuadah, S Werdyani, ... Tropical Life Sciences Research 36 (2), 203 , 2025 2025
Strategic Approaches to Halal Lipid Authentication Using Instrumental, Chemometric, and Traceability Techniques MSA Sani, AM Ismail, A Azid, MS Samsudin, MH Yuswan, MBH Othman AIJR Books, 70-88 , 2025 2025 Citations: 1
Kaffir lime’s essential oil mediated silver nanoparticles: A potential antibacterial and anticancer agent S Selvam, YF Wong, JS Tan, V Balakrishnan, D Thangeswaran, ... Inorganic Chemistry Communications 173, 113884 , 2025 2025 Citations: 6
Unravelling structure–property relationships in polyfluorene derivatives for optoelectronic advancements: a review KW Chew, NA Abdul Rahim, PL Teh, MBH Othman, CH Voon Journal of Materials Science 60 (7), 3201-3226 , 2025 2025 Citations: 19
Advanced Sulfonated Polyimide Membrane Technology: From Synthesis to Properties XY LIM, MBH OTHMAN, MN AZMI, MR ADAM, J Nuru-Deen, N NOSBI Desalination and Water Treatment, 100978 , 2025 2025 Citations: 1
Molecular Interactions Between Polyurethane and UiO-66 in Polymer-MOF Nanocomposites: Microstructural and Mechanical Effects S Ahmad, MF Omar, EM Mahdi, KAA Halim, SZ Abd Rahim, H Md Akil, ... Archives of Metallurgy and Materials, 199-209-199-209 , 2025 2025
Hkust-1-Reinforced Polyurethane Nanocomposites: Unveiling Molecular Interactions and Performance Characteristics S Ahmad, MF OMAR, M EM, KA Abdul Halim, SZA Rahim, ST Sung Ting, ... Available at SSRN 4865874 , 2024 2024
Measurement of the water absorption on hybrid carbon fibre prepreg waste composite and its impact on flexural performance AAA Shukri, N Nosbi, MF Omar, SSM Saleh, MBH Othman, NM Najib, ... 2024 Citations: 2
Preparation and Characterisation of Nanolignin-Gelatine-Glycerol Composite (NLGGCs) Thin Film for Food Coating Application NN Rafiae, MBH Othman, MSA Sani, MNM Ibrahim, NNM Daud Halalpshere 4 (1), 14-22 , 2024 2024 Citations: 1
Isolation, Characterization, Molecular Docking, and Antimalarial Activity of Chemical Constituents of Diospyros adenophora. ID Bafarawa, MSA Ghani, MN Azmi, MBH Othman, MN Ibrahim, ... Malaysian Journal of Chemistry 26 (1), 120 - 133 , 2024 2024 Citations: 2
Polyimide–nickel nanocomposites fabrication, properties, and applications: A review ND Jaji, MBH Othman, HL Lee, MH Hussin, H Md Akil, ZM Aljunid Merican, ... Reviews on Advanced Materials Science 62 (1), 20230113 , 2023 2023 Citations: 4
Nanosizing approach—a case study on the thermal decomposition of hydrazine borane NA Abu Osman, NI Nordin, KC Tan, NAHA Hosri, Q Pei, EP Ng, ... Materials 16 (2), 867 , 2023 2023 Citations: 3
Mechanical and dielectric properties of hybrid carbon nanotubes-woven glass fibre reinforced epoxy laminated composites via the electrospray deposition method MR Zakaria, NASM Khairuddin, MF Omar, HM Akil, MBH Othman, ... Archives of Metallurgy and Materials 67 (2), 669-675 , 2022 2022 Citations: 2
MOST CITED SCHOLAR PUBLICATIONS
Classification, processing and application of hydrogels: A review F Ullah, MBH Othman, F Javed, Z Ahmad, HM Akil Materials Science and Engineering: C 57, 414-433 , 2015 2015 Citations: 2072
Synthesis and evaluation on pH-and temperature-responsive chitosan-p (MAA-co-NIPAM) hydrogels SZM Rasib, Z Ahmad, A Khan, HM Akil, MBH Othman, ZAA Hamid, ... International journal of biological macromolecules 108, 367-375 , 2018 2018 Citations: 94
Dielectric constant and refractive index of poly (siloxane-imide) block copolymer MBH Othman, MR Ramli, YT Looi, Z Ahmad, HM Akil Materials & Design 32 (6), 3173-3182 , 2011 2011 Citations: 88
Preparation and characterization of nanosized lignin from oil palm (Elaeis guineensis) biomass as a novel emulsifying agent SH Sekeri, MNM Ibrahim, K Umar, AA Yaqoob, MN Azmi, MH Hussin, ... International journal of biological macromolecules 164, 3114-3124 , 2020 2020 Citations: 83
Synthesis and physicochemical investigation of chitosan-PMAA-based dual-responsive hydrogels A Khan, MBH Othman, KA Razak, HM Akil Journal of Polymer Research 20 (10), 273 , 2013 2013 Citations: 71
Cross-link network of polydimethylsiloxane via addition and condensation (rtv) mechanisms. Part i: synthesis and thermal properties MR Ramli, MBH Othman, A Arifin, Z Ahmad Polymer Degradation and Stability 96 (12), 2064-2070 , 2011 2011 Citations: 62
Effect of crosslink density on the refractive index of a polysiloxane network based on 2, 4, 6, 8‐tetramethyl‐2, 4, 6, 8‐tetravinylcyclotetrasiloxane YT Looi, MR Ramli, H Othman, M Bisyrul, R Ramli, M Ishak, Z Arifin, ... Polymer International 62 (3), 382–389 , 2012 2012 Citations: 53
Thermal degradation and kinetics stability studies of oil palm (Elaeis Guineensis) biomass-derived lignin nanoparticle and its application as an emulsifying agent AA Yaqoob, SH Sekeri, MBH Othman, MNM Ibrahim, ZH Feizi Arabian Journal of Chemistry 14 (6), 103182 , 2021 2021 Citations: 47
One-pot solvothermal synthesis and characterization of highly stable nickel nanoparticles ND Jaji, MBH Othman, HL Lee, MH Hussin, D Hui Nanotechnology Reviews 10 (1), 318-329 , 2021 2021 Citations: 40
Improving flexural and dielectric properties of carbon fiber epoxy composite laminates reinforced with carbon nanotubes interlayer using electrospray deposition MR Zakaria, HM Akil, MF Omar, MMAB Abdullah, AAA Rahman, ... Nanotechnology Reviews 9 (1), 1170-1182 , 2020 2020 Citations: 38
New generation of hybrid filler for producing epoxy nanocomposites with improved mechanical properties NSAA Bakhtiar, HM Akil, MR Zakaria, MHA Kudus, MBH Othman Materials & Design 91, 46-52 , 2016 2016 Citations: 35
Thermal properties and kinetic investigation of chitosan-PMAA based dual-responsive hydrogels MBH Othman, HM Akil, SZM Rasib, A Khan, Z Ahmad Industrial Crops and Products 66, 178-187 , 2015 2015 Citations: 35
Preparation, physicochemical and stability studies of chitosan-PNIPAM based responsive microgels under various pH and temperature conditions A Khan, MBH Othman, BP Chang, HM Akil Iranian Polymer Journal 24 (4), 317-328 , 2015 2015 Citations: 30
Swelling behavior and chemical stability of chitosan/nanocellulose biocomposites MS Mohaiyiddin, HL Ong, MBH Othman, NM Julkapli, ARC Villagracia Polymer Composites , 2018 2018 Citations: 29
Synthesis and functionalization of chitosan built hydrogel with induced hydrophilicity for extended release of sparingly soluble drugs F Ullah, F Javed, MBH Othman, A Khan, R Gul, Z Ahmad, H Md. Akil1 Journal of Biomaterials science, Polymer edition 29 (4), 376-396 , 2018 2018 Citations: 28
Dependence of the dielectric constant on the fluorine content and porosity of polyimides MBH Othman, NAS Ming, HM Akil, Z Ahmad Journal of Applied Polymer Science 121 (6), 3192–3200 , 2011 2011 Citations: 28
Comparative study of single‐layer graphene and single‐walled carbon nanotube‐filled epoxy nanocomposites based on mechanical and thermal properties MR Zakaria, MH Abdul Kudus, H Md Akil, MZM Thirmizir, MFI Abdul Malik, ... Polymer Composites 40 (S2), E1840-E1849 , 2019 2019 Citations: 26
Thermal properties of polyimide system containing silicone segments MBH Othman, R Ramli, Z Mohamad Ariff, H Md Akil, Z Ahmad Journal of Thermal Analysis and Calorimetry 109 (3), 1515-1523 , 2012 2012 Citations: 25
