Chemistry of Triazene-Liquid Crystals: A Review Zahraa M. Abdulhameed, Nasreen R. Jber, and Al Nahrain Journal of Science, 2025 This review focuses on star-shaped liquid crystals that possess a highly organized and elongated molecular design, which enables them to exhibit favorable ferroelectric and ionic conductivity functions due to the electron delocalization resulting from π-π stacking conjugation and the electrostatic attraction of ions. The motivation for creating an ionic liquid crystal with a nematic phase is due to its potential engineering uses. The nematic phase is recognized for having the highest fluidity among all liquid crystalline phases. This makes it possible to position the nematic phase by applying an external electric or magnetic field widely utilized in electro-optical electronics. The chemistry of liquid crystals, specifically the state chemistry of matter, involves compounds of chemicals containing features of liquid crystals. Biological sensors made from liquid crystal materials enable monitoring biological phenomena without labels. Liquid crystalline polymers are employed to replicate color-generating structures. Liquid crystal compounds are commonly known as a distinct state; however, their impact on contemporary proceduresh as been significant. Derived from cholesterol, liquid crystals are molecules often studied and handled by biologists and biomedical engineers.
Electro Optical Properties of MBBA Liquid Crystal Doped with Carbon Nanotubes Iraqi Journal of Applied Physics, 2025
Synthesis, Characterization and Evaluation of the Antimicrobial Activity of a New [1,2,4] Triazolo [3,4-B] [1,3,4] Thiadiazoles Derivatives Karrar M. Juaila, Nasreen R. Jber, and Al Nahrain Journal of Science, 2024 In this study, synthesis of [D-H] via reaction of compound [C] with p-alkoxybenzaldehyde. The derivative [C] that produces from reaction the 4-amino-5-(4-aminophenyl)-4H-1,2,4-triazole-3-thiol with phosphory l chloride. The synthesized derivatives are characterized by 1HNMR and FTIR spectroscopies. The antibacterial activity of the obtained thiadiazol derivatives [D-H] was screened against Gram-positive bacteria viz.(Staphylococcus aureus, Bacillus subtilis) and Gram-negative bacteria viz. (Escherichia coli) by disc diffusion method, the results showed that compound [H]has the highest activity toward Bacillus subtilis and Staphylococcus aureus, while compounds [D]showed the highest activity toward E. coli.
The Effect of 1,3,4-Oxadiazol and 1,2,4-Triazole Compounds on Urease and Pepsin Enzymes Zahraa M. Abdnoor, Nasreen R.Jber, Aliaa Saadoon Abdul-Razaq, and Al Nahrain Journal of Science, 2024 The helicobacter pylori affected urease and pepsin enzymes in the stomach, so the object of this study is to screen the effect of bis 1,3,4-oxadiazole and bis 1,2,4, triazole derivatives compounds on h-pylori urease enzyme in vitro. The results show that urease was inhibited by all produced compounds when the concentration increased. The most effective urease inhibitor is determined to be the compounds (A3e, A3c, A3d and B3c). The clinical study involved studying the pepsin enzyme activity level in H-pyloripatients and control, the results found that the activity of pepsin elevated in h-pylori patients as compared with control. The prepared compounds were screened on pepsin enzyme in vitro and showed that all the prepared compounds decreased the pepsin activity as the concentration increased. The nitrogen heterocyclic compounds. This study concludes that nitrogen-containing heterocyclic compounds have an important future in the treatment of Helicobacter pylori disease.
Nanoparticles and Heterocyclic Compounds: Synthesis, Functionalization, and Applications: A review W Kareem, NR Jber, A Al-Ani Al-Kitab Journal for Pure Sciences 10 (01), 125-148 , 2026 2026
Synthesis, Characterization and Antibacterial Activity of Pyrazole Derivatives Featuring Thiazole Frameworks NF Abbas, NR Jber Al-Nahrain Journal of Science 28 (3), 31-41 , 2025 2025
ESTIMATION TRACE OF HEROIN EXTRACTED FROM TOXIC PLANTS USING MOLECULARLY PRECIPITATION POLYMERS TECHNOLOGY YK Al-Bay, NR Jber, SF Abdullah Iraqi Journal of Agricultural Sciences 56 (4), 1574-1583 , 2025 2025 Citations: 1
Modification of poly (Y-Dex-MBA) hydrogel by maleic anhydride and its use for the release of cephalexin and guaifenesin. H M Soodi, N R Jber, N M Ali Journal of Bioscience and Applied Research , 2025 2025
Synthesis, Characterization and Anticancer Activity of New Oxazepan Derivative Compounds N Jber, H Sdeeq, F Al-Kazazz Iraqi Journal of Bioscience and Biomedical 2 (1), 77-88 , 2025 2025
Antibacterial Activity Estimation of New Pyrazole Compounds N Jber, N Abbas Iraqi Journal of Bioscience and Biomedical 2 (1), 65-76 , 2025 2025
Electro Optical Properties of MBBA Liquid Crystal Doped with Carbon Nanotubes LA Abdullah, AA Rashad, RK Ibrahim, NR Jber Iraqi Journal of Applied Physics 21 (1), 101-104 , 2025 2025 Citations: 1
Chemistry of Triazene-Liquid Crystals: A Review ZM Abdulhameed, NR Jber Al-Nahrain Journal of Science 28 (1), 56-71 , 2025 2025 Citations: 1
Optical Behavior Of A Liquid Crystal Doped With Carbon Nanotubes LA Abdullah, HN Naser, AA Rashad, NR Jber Journal of Optics, 1-5 , 2025 2025
Synthesis, and Docking Study of Novel Mannich-Base Triazole Derivatives as Potent Inhibitors of β-Tubulin N Jber Iraqi Journal of Bioscience and Biomedical 2 (2), 174-197 , 2025 2025
Synthesis of New Macromolecule Star-Shape Liquid Crystalline Compounds Derived from Cyanuric Chloride ZM Abdulhameed, NR Jber Liquid crystals 2, 3 , 2025 2025
Synthesis, Characterization and Evaluation of the Antimicrobial Activity of a New [1, 2, 4] Triazolo [3, 4-B][1, 3, 4] Thiadiazoles Derivatives KM Juaila, NR Jber Al-Nahrain Journal of Science 27 (3), 1-8 , 2024 2024 Citations: 1
Theoretical Study to Evaluate Experimental Corrosion Inhibition of Ammonium Salt Derivatives for Mild Steel in Acidic Solution MS Shihab, NR Jber, MS Mohsin Protection of Metals and Physical Chemistry of Surfaces 60 (2), 320-332 , 2024 2024
The Effect of 1, 3, 4-Oxadiazol and 1, 2, 4-Triazole Compounds on Urease and Pepsin Enzymes ZM Abdnoor, NR Jber, AS Abdul-Razaq Al-Nahrain Journal of Science 27 (1), 42-64 , 2024 2024 Citations: 2
Synthesis and Characterization of Rod-Bent Shape Compounds Containing Bis-Oxadiazole AM Rasol, NR Jber Al-Nahrain Journal of Science 26 (1), 8-14 , 2023 2023
Tetrazole derivatives and role of tetrazole in medicinal chemistry: An article review AA Jawad, NR Jber, BS Rasool, AK Abbas Al-Nahrain Journal of Science 26 (1), 1-7 , 2023 2023 Citations: 21
Synthesis and mesomorphic properties of new mesogen contain 1, 3, 4-oxadiazole ring Z Jasim, NR Jber AIP Conference Proceedings 2457 (1), 030008 , 2023 2023
Synthesis and characterization of rod-bent mesogen containing 1, 2, 4-oxadiazole ring AM Rasol, NR Jber AIP Conference Proceedings 2457 (1), 030006 , 2023 2023
Synthesis and characterization of new 1, 3-oxazepine compounds from P-Phenylenediamine as insecticide (Aphidoidea) ZH Ali, NR Jber, AK Abbas AIP Conference Proceedings 2457 (1), 030015 , 2023 2023 Citations: 8
Synthesis and characterization of new dendrimers compoundderived from melamine ZH Ali, NR Jber American Institute of Physics Conference Series 2457 (1), 030012 , 2023 2023
MOST CITED SCHOLAR PUBLICATIONS
Synthesis and Spectral Study of New Azo - Azomethine Dyes and its Copper (II) Complexes Derived from Resorcinol, 4-Aminobenzoylhydrazone and 4-Amino antipyrine RSAYAAD Nasreen R. Jber* Journal of Al-Nahrain University 14 (2011), 50-56 , 2011 2011 Citations: 31
Effects of carbon nanotubes on the physical properties of a nematic liquid crystal N-(4′-methoxybenzylidene)-4-butylaniline RAA Nasreen R Jber, MS Shihab Journal of Molecular Structure 1043, 28-36 , 2013 2013 Citations: 29
Synthesis and Characterization a New 1, 3-Diazepine Compounds from New Bis 4-Amino-3-Mercpto-1, 2, 4-Triazole Derivatives AAQ Younus, NR Jber Al-Nahrain Journal of Science 20 (2) , 2017 2017 Citations: 25
Tetrazole derivatives and role of tetrazole in medicinal chemistry: An article review AA Jawad, NR Jber, BS Rasool, AK Abbas Al-Nahrain Journal of Science 26 (1), 1-7 , 2023 2023 Citations: 21
Synthesis and Estimation of Biological Activity of New Oxazepine Derivatives NRJ ABBAS KHUDHAIR ABBAS INTERNATIONAL JOURNAL OF PHARMACEUTICAL RESEARCH 12 (Supplementary Issue 2 … , 2020 2020 Citations: 20
Supramolecular columnar discotic nematic liquid crystal by hydrogen bonding: Synthesis and characterization AHAD Nasreen R. Jber, Nisreen H. Karam Molecular Crystals and Liquid Crystals 675 (1), 29-38 , 2019 2019 Citations: 15
A New Series of Triazine-core Based Mesogenic Derivatives: Synthesis, Characterization and Mesomorphic Study AHADT Nisreen H. Karam, Nasreen R. Jber Molecular Crystals and Liquid Crystals 675 (1), 39-48 , 2019 2019 Citations: 13
Schiff Base liquid Crystals with Terminal Alkoxy Group Synthesis and Thermotropic Properties. NR Jber, MM Shukur, AA Najaf Al-Nahrain Journal of Science 17 (2), 64-72 , 2014 2014 Citations: 9
Synthesis and characterization of new 1, 3-oxazepine compounds from P-Phenylenediamine as insecticide (Aphidoidea) ZH Ali, NR Jber, AK Abbas AIP Conference Proceedings 2457 (1), 030015 , 2023 2023 Citations: 8
Synthesis and characterization of new oxazepine compounds and estimation its biological activity AK Abbas, NR Jber Al-Nahrain Journal of Science 23 (3), 17-23 , 2020 2020 Citations: 8
Improvement photoluminescence of nematic liquid crystal doped with gold nanoparticles LA Abdullah, FG Khalid, AA Rashad, NR Jber AIP Conference Proceedings 2190 (1), 020082 , 2019 2019 Citations: 8
Physiochemical properties of crystalline etch products for CR-39 track detector after α-particles irradiation HA Al-Jobouri, NR Jber, AH Al-Shukrawi, MK Hamid Adv. Appl. Sci. Res 4 (4), 501-507 , 2013 2013 Citations: 8
Synthesis and Spectroscopic Characterization of bis-Swallow Tailed Mesogen DM Hadi, NR Jber IJSR 6 (1), 1909-1915 , 2017 2017 Citations: 6
Porous Silicon Morphology: Photo-Electrochemically Etched by Different Laser Wavelengths SM Faraj, SMA Al-Baqi, NR Jber, J Fisher Journal of Nanotechnology in Engineering and Medicine 6 (1), 011003-1- 011003-7 , 2015 2015 Citations: 4
Synthesis and Characterization of New Mesomorphic Azo Compounds and Study their Photoluminesecence Properties MS Hatem, NR Jber Baghdad Science Journal 13 (2), 59 , 2016 2016 Citations: 3
Theoretical approach to study assembly nature of molecular modeling system of carbon nanotube and a nematic liquid crystal AA Rashad, NR Jber, MS Shihab Al-Nahrain Journal of Science 15 (4), 91-97 , 2012 2012 Citations: 3
The Effect of 1, 3, 4-Oxadiazol and 1, 2, 4-Triazole Compounds on Urease and Pepsin Enzymes ZM Abdnoor, NR Jber, AS Abdul-Razaq Al-Nahrain Journal of Science 27 (1), 42-64 , 2024 2024 Citations: 2
Synthesis, Characterization, and Investigation of Mesogenic Properties of Bis (2-oxo-2H-Chromen-6-yl) Terephthalate and Bis (2-Oxo-2H-Chromen-7-yl) Terephthalate W Abd Aya, N Jber Journal of Medicinal and Chemical Sciences , 2023 2023 Citations: 2
Supramolecular discotic mesophases containing melamine-core induced by hydrogen-bonding: synthesis and characterization ZHANR Jber Eurasian Chemical Communications 4, 419-424 , 2022 2022 Citations: 2
Synthesis, Characterization and Estimation the Biological Activity of New Mesomorphic Heterocyclic Compounds HA Hamza, NR Jber INTERNATIONAL JOURNAL 10 (1), 106-113 , 2020 2020 Citations: 2