Article
Engineering, Chemical
Mirza Nadeem Ahmad, Sohail Nadeem, Raya Soltane, Mohsin Javed, Shahid Iqbal, Zunaira Kanwal, Muhammad Fayyaz Farid, Sameh Rabea, Eslam B. Elkaeed, Samar O. Aljazzar, Hamad Alrbyawi, Walid F. Elkhatib
Summary: The poly(o-anisidine)/BaSO4 nanocomposites were prepared and characterized for their potential antibacterial properties. The properties of the nanocomposites were tunable by changing the ratio of BaSO4 filler, and the interaction between POA and BaSO4 was confirmed by FTIR analysis. The nanocomposites exhibited good absorption behavior in UV-visible spectra. Moreover, the POA/BaSO4 nanocomposites showed effective antibacterial activity against Staphylococcus aureus and Pseudomonas aeruginosa.
Article
Polymer Science
Andrey V. Orlov, Svetlana G. Kiseleva, Galina P. Karpacheva, Dmitriy G. Muratov
Summary: The study explored the oxidative polymerization of diarylaminodichlorobenzoquinones for the first time, revealing the high activity of the synthesized monomers. The increase in acid concentration was found to promote oxidation rate growth, with only one arylamine group involved in the reaction. Optimal oxidant/monomer ratio for single functionality monomer conversion was identified, and the substituent type on the arylamine group determined the polymer chain growth and structure.
Article
Spectroscopy
Dineshkumar Sengottuvelu, Muthusamy Athianna, Anand Siddeswaran
Summary: A series of azomethine diol monomers containing naphthalene moiety were oxidatively polymerized in aqueous alkaline medium using NaOCl as oxidant. The polymers exhibit high thermal stability and good spectroscopic properties.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Multidisciplinary
Ilaria Ragazzini, Riccardo Castagnoli, Isacco Gualandi, Maria Cristina Cassani, Daniele Nanni, Francesca Gambassi, Erika Scavetta, Elena Bernardi, Barbara Ballarin
Summary: Ambient humidity is an important parameter that affects the manufacturing and storage of industrial and agricultural goods. This paper reports the development of a low-cost humidity sensor made of cellulose and polyaniline, which shows similar performance to a commercial sensor. The sensor has potential applications in agriculture, food monitoring, and medical and industrial environments.
Article
Biophysics
Fangwei Qi, Huixing Li, Gang Chen, Shuping Peng, Xingrui Luo, Shiyu Xiong, Hua Zhu, Cijun Shuai
Summary: A nanoheterojunction was synthesized by growing copper sulfide (CuS) on graphitic carbon nitride (g-C3N4), which improved the electron-hole separation efficiency and generated a photothermal effect for effective photodynamic antibacterial therapy.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2023)
Article
Chemistry, Physical
Mahmoud Al-Gharram, Inshad Jum'h, Ahmad Telfah, Mahmoud Al-Hussein
Summary: Conductive and optically tunable PANI/CoFe2O4 NPs nanocomposite films were successfully prepared by potentiostatic electrochemical polymerization. The addition of CoFe2O4 NPs improved the crystallinity and conductivity of the films, and magnetic hysteresis was observed. These results indicate the potential applications of these nanocomposite films.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Multidisciplinary
Hamid Zouggari, Fatima-Zahra Mahir, Abdelaziz Imgharn, Abdelghani Hsini, Nouh Aarab, Mohamed Laabd, Abdallah Albourine
Summary: An eco-friendly material, Arg-PANI@g-C3N4 composite, was synthesized by interfacial polymerization. The as-synthesized composite was characterized and its adsorption capability for Orange G dye was evaluated. Thermodynamics and kinetics of the adsorption process were analyzed. The composite showed promising results in terms of reusability.
Article
Materials Science, Composites
Tengfei Lin, Haojie Yu, Li Wang, Qinghua Ma, Haiyu Huang, Li Wang, Md Alim Uddin, Fazal Haq, Dmitry A. Lemenovskiy
Summary: In this study, PANI/C-60 composites were synthesized using in-situ chemical oxidative polymerization method, and the effects of different reaction conditions on the properties of the products were investigated. The composites exhibited good electromagnetic interference shielding performance.
POLYMER COMPOSITES
(2021)
Article
Engineering, Environmental
Bianca-Maria Bresolin, Paolo Sgarbossa, Detlef W. Bahnemann
Summary: A new visible-light active polymeric semiconductor was successfully fabricated by covalently functionalizing g-C3N4 with halogenated phenyl groups, leading to enhanced visible-light absorption and charge carrier separation. The functionalization extended the pore structure of g-C3N4, resulting in increased specific surface area and active sites, ultimately improving photocatalytic performance.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Inorganic & Nuclear
N. C. Nepomuceno, A. A. A. Seixas, E. S. Medeiros, T. J. A. Melo
Summary: The study combines cellulose nanocrystals (CNC) and polyaniline through an in situ polymerization of PANI in CNC suspensions to create a nanostructured material. Results show that particle size, thermal stability and polymerization time increase with CNC concentration, indicating that cellulose nanostructure serves as a backbone for PANI deposition. Additionally, the nanostructured PANI/CNC with a higher content of PANI exhibits a conductivity value of 8.9 x 10(-1) S/cm(-1), showing great potential as an alternative nanostructured material compared to neat polyaniline.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Y. O. Mezhuev, M. Motyakin, I. Yu Vorobev, I. Plyushchii, A. L. Luss, I. S. Ionova, A. L. Kovarskii, Yu Cai, M. Shtilman, A. M. Tsatsakis, C. Zaharia, Yu Korshak
Summary: The study demonstrates the possibility of using EPR spectroscopy to monitor the concentration of polyaniline and control the kinetics of aniline polymerization. The research also reveals a change in the reaction order and proposes a new approach to deriving the rate equation for oxidative polymerization of aniline.
Article
Chemistry, Physical
Miaodan Dong, Qiulan Li, FeiJian Xiao, Yijie Wang, Dezhi Yang, Yaling Yang
Summary: The combination of sonosensitizer molecules and graphitic carbon nitride modified by Cu enhances the catalytic activities and ROS generation for effective antimicrobial activities. The developed photoacoustic nanozyme system provides a promising strategy for eradication of bacterial infection.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Chemical
Liangliang Gui, Yuqi Cui, Yuzhang Zhu, Xiaoqiang An, Huachun Lan, Jian Jin
Summary: The study presents a facile method to fabricate a thin film composite (TFC) NF membrane with a crumpled polyamide (PA) active layer based on a graphitic carbon nitride (g-C3N4) nanofibers network interlayer, which shows high water flux and salt rejection.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
A. Khatun, A. Yadav, S. Zhang, S. Saha
Summary: By in-situ oxidative polymerization of preloaded redox-active monomers, the intrinsically insulating MOF has been transformed into electrically conducting MOF superset of conducting-polymer composites, which could be potentially applied in various porous MOFs to achieve engineered conductivity properties.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Chemistry, Physical
Nosheen Farooq, Aziz Ur Rehman, Ashfaq Mehmood Qureshi, Zohaib Ur Rehman, Awais Ahmad, Muhammad Kashif Aslam, Hafiz Muhammad Asif Javed, Shahid Hussain, Mohamed A. Habila, Najla AlMasoud, Taghrid S. Alomar
Summary: The study synthesized Au/GOCNIONPs nanocomposite using four different routes and evaluated its structural and performance characteristics. The nanocomposite showed excellent degradation efficiency against methylene blue and Rhodamine B dyes, as well as superior Photo Luminescence results, antibacterial activity, and stability.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Organic
Mohammad Asad, Muhammad Nadeem Arshad, Abdullah M. Asiri, Mohammed T. N. Musthafa, Salman A. Khan, Mohd Rehan, Mohammad Oves
Summary: A series of novel N-methylspiropyrrolidine hybrids were synthesized using 1,3-dipolar cycloaddition reaction, and their structures, antibacterial activity, and mechanism of action were investigated.
POLYCYCLIC AROMATIC COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Mohammad Oves, Mohd Ahmar Rauf, Huda A. A. Qari
Summary: Biogenic silver nanoparticles (BAgNPs) were synthesized using Bougainvillea glabra paper flower extract through green chemistry, where the flower extract acted as a biological reducing agent to convert Ag+ cations to Ag-0 ions. Physical techniques such as UV-visible, SEM, TEM, DLS, XRD, and FTIR were employed to characterize the BAgNPs, revealing spherical to oval nanoparticles with a size range of 10 to 50 nm. The antibacterial properties of the biologically produced BAgNPs were investigated through spectroscopy and microscopic analysis, and their potential mechanism of action was studied through interactions with bacterial strains and mammalian cancer cell systems in vitro. The results suggest that biologically produced nanomaterials, such as BAgNPs, have the potential for biomedical applications in inhibiting bacterial growth and cancer cell growth in culture conditions.
Article
Infectious Diseases
Varish Ahmad, Mohammad Omaish Ansari
Summary: In this investigation, a reduced graphene oxide-coated zinc oxide-copper (rGO@ZnO-Cu) nanocomposite with broad-spectrum antimicrobial potential was prepared. The nanocomposite exhibited big, irregular rods, rectangular and spherical-shaped ZnO, and anchored clusters of aggregated Cu particles. The rGO@ZnO-Cu complex showed antimicrobial activity against both Gram-positive and Gram-negative bacteria, with greater effectiveness against Staphylococcus aureus.
Article
Biochemistry & Molecular Biology
Mohammad Oves, Mohammad Omaish Ansari, Mohammad Shahnawaze Ansari, Adnan Memic
Summary: The rise of antimicrobial resistance has increased the demand for the next generation of antimicrobial coatings. In this study, graphene@curcumin-copper coatings were prepared using a chemical synthesis method and characterized by scanning electron microscopy and X-ray photon scattering. The coatings showed uniform distribution of curcumin and copper, and exhibited antimicrobial properties through contact-killing mechanisms, potentially reducing the risk of nosocomial infections.
Article
Polymer Science
Aftab Aslam Parwaz Khan, Mallikarjunagouda B. Patil, Laxmibai P. Rathod, Shivalila G. Vader, Pankaj Raizada, Pardeep Singh, Maha M. Alotaibi, Mohammad Omaish Ansari, Anish Khan, Naved Azum, Malik Abdul Rub, Muhammad Nadeem Arshad, Abdullah M. Asiri
Summary: The study assessed the potential of nanocomposite membranes (NCMs) made of sodium alginate and embedded with synthesized zeolitic imidazole framework-8 (ZIF-8) as fillers for separating gaseous mixtures generated by methane reforming. ZIF-8 crystals were synthesized through hydrothermal synthesis, with sizes ranging from 50 to 70 nm. NCMs with 15% filler loading (synthesized ZIF-8) outperformed neat polymer membranes in terms of H-2 permeability and selectivity, achieving a purity of up to 95%. However, NCMs did not perform better than neat polymer membranes in separating gas mixtures. The combination of ZIF-8 and sodium alginate as fillers is a new and worth investigating.
Article
Polymer Science
Rashida Jafer, Sarah A. A. Alsufyani, Javed Iqbal, Mohammad Omaish Ansari, Arshid Numan, Shahid Bashir, P. M. Z. Hasan, S. Wageh
Summary: In this study, a silver/graphene/polypyrrole/nickel hydroxide (Ag/GN/PPy/Ni(OH)(2)) nanocomposite was synthesized through a combination of oxidative polymerization and hydrothermal processes. The nanocomposite exhibited morphological characteristics of Ni(OH)(2) flakes and silver particles attached to the PPy globules, along with the presence of GN sheets and spherical silver particles. The electrochemical investigations showed that the nanocomposite electrode displayed the highest specific capacity and excellent cyclic stability when used in a supercapattery.
Article
Biochemical Research Methods
Mohd Sajid Ali, Md Tabish Rehman, Hamad A. Al-Lohedan, Mohamed F. Alajmi
Summary: In this study, the interaction between cuminaldehyde and bovine serum albumin (BSA) was investigated. The formation of the BSA-cuminaldehyde complex was confirmed through spectroscopic measurements. The interaction between cuminaldehyde and BSA followed a static quenching mechanism, with a 1:1 binding ratio, and was enhanced by hydrophobic forces and hydrogen bonding.
JOURNAL OF SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Sultan Alshehri, Sarah I. I. Bukhari, Syed Sarim Imam, Afzal Hussain, Adel F. F. Alghaith, Mohammad A. A. Altamimi, Abdullah S. S. AlAbdulkarim, Alanood Almurshedi
Summary: Piperine nanoemulsions were prepared using a high-energy ultrasonication approach with oleic acid, Cremophore EL, and Tween 80. The optimal nanoemulsion (N2) showed improved drug release and permeation compared to pure piperine dispersion. The nanoemulsions were stable in the tested media and exhibited significant antibacterial and cell line activity. These findings suggest that piperine nanoemulsions could be a more advanced nanodrug delivery system than conventional ones.
Article
Chemistry, Multidisciplinary
Afzal Hussain, Obaid Afzal, Sabina Yasmin, Nazima Haider, Abdulmalik Saleh Alfawaz Altamimi, Fleming Martinez, William E. Acree Jr, Mohhammad Ramzan
Summary: Rosuvastatin is a poorly water-soluble drug with limited in vivo dissolution and low oral absorption. The study investigated the preferential solvation of Rosuvastatin by binary mixtures of PEG400 and water. The results showed that PEG400 had a significant effect on the preferential solvation of Rosuvastatin. The GastroPlus program predicted that the Rosuvastatin-loaded PEG400 + water mixture would have higher dissolution rate and enhanced oral absorption compared to conventional tablets.
Article
Chemistry, Multidisciplinary
Afzal Hussain, Syed Sarim Imam, Mohammad A. Altamimi, Mudassar Shahid, Osamah Abdulrahman Alnemer
Summary: This study aimed to develop green nanoemulsions using capryol-C90, lecithin, Tween 80, and N-methyl-2-pyrrolidone. The HSPiP software and experimental data were utilized to explore suitable excipients, and the nanoemulsions were evaluated for their in vitro characterization parameters. The results showed that the optimized nanoemulsions exhibited good hydrophobicity and stability under various stress conditions.
Article
Chemistry, Analytical
Nazrul Haq, Muzaffar Iqbal, Afzal Hussain, Faiyaz Shakeel, Ashfaq Ahmad, Ibrahim A. Alsarra, Mohamed Fahad AlAjmi, Asra Mahfooz, M. Ali Abouzadeh
Summary: The objective of this study was to investigate the potential of biodegradable agro-industrial waste materials as biosorbents in solid-phase extraction (SPE) technique for sample preparation. Waste coffee husk (CH) powder was collected, treated chemically, and used as an SPE adsorbent to extract pantoprazole from wastewater samples. The efficiency and regeneration capability of CH were comparable to a commercially available silica-based C18 SPE adsorbent. The developed biosorbent showed a recovery range of 93.0% to 102.0% with a %RSD of 3.72% to 12.7%.
Article
Chemistry, Physical
Budgam Sai Vamshi, Vani Sharma, Waseem Ahmad, Vinod Kumar, Samiksha Sharma, Naveen Chandra Joshi, Afzal Hussain, Deepika Kohli, J. P. Shabaaz Begum, Sanjay Kumar
Summary: This study focuses on the microwave-assisted green synthesis of silver nanoparticles from Bombax ceiba bud powder and evaluates their characterization and application performance. The developed nanoparticles exhibit crystalline properties, spherical shape, and demonstrate excellent photocatalytic and antimicrobial activities.
Article
Plant Sciences
Mohammad Oves, Huda A. Qari, Mohammad Saghir Khan
Summary: This study identified a potentially significant microbial isolate from heavy metal-contaminated soil samples, which exhibited tolerance to heavy metals, chromium reduction, biosorption, and plant growth-promoting activities. The isolate was also capable of solubilizing phosphate and producing indole acetic acid and siderophore. These findings highlight the importance of this microbial isolate in soil fertility restoration and crop development under metal-stressed conditions.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Food Science & Technology
Shubhangi Arora, Priyanka Kataria, Waseem Ahmad, Ritesh Mishra, Shuchi Upadhyay, Ankita Dobhal, Bhawna Bisht, Afzal Hussain, Vinod Kumar, Sanjay Kumar
Summary: This study explores the extraction of pectin from the albedo and flavedo portions of Citrus maxima using green microwave aided extraction technology. The optimal conditions for extraction were identified and the resulting pectin was compared with commercial pectin in terms of properties and characteristics.
FOOD ANALYTICAL METHODS
(2023)
