devika nokarajoo, siti aishah hasbullah, nurul huda abd. karim, yook heng lee, emma izzati zakariah.  (2025).  3-(bis(2-methyl-1h-indol-3-yl)methyl)benzene-1,2-diol (bid) as signal amplifiers in electrochemical dna biosensors for alexandrium minutum detection.  - microchemical journal.  1 - 13. 

nadrahtul huda misral, emma izzati zakariah, tengku sarah tengku md fauzi, syaza azhari, noraisyah abdul kadir jilani, nurul hidayah abdul razak, suhaila sapari, fazira ilyana abdul razak, siti aishah hasbullah.  (2025).  high reproducibility of facile pb(ii) ion electrochemical sensor based on bim/sba-15.  - sensing and bio-sensing research.  1 - 12. 

marhoon ashraff aziz, hasbullah siti aishah, asikin-mijan, mokhtar wan nur aini wan.  (2024).  adsorption of metal porphyrins using chitosan/zeolite-x composite as an efficient demetallization agent for crude oil: isotherm, kinetic, and thermodynamic studies.  - international journal of biological macromolecules.  133358 - 133378. 

eda yuhana ariffin, lee yook heng, siti aishah hasbullah.  (2024).  sintesis dan pencirian zarah silika berongga dalam aplikasi biosensor dna (synthesis and characterization of hollow silica spheres as dna biosensor application).  - sains malaysiana.  3651 - 3661. 

emma izzati zakariah , eda yuhana ariffin , devika nokarajoo , muhamad afiq mohamed akbar, yook heng lee, siti aishah hasbullah.  (2024).  highly sensitive of an electrochemical dna biosensor detection towards toxic dinoflagellates alexandrium minutum (a. minutum).  - microchemical journal.  1 - 12. 

lekkala ravindar, siti aishah hasbullah, k.p. rakesh, saki raheem, hani kartini agustar, norzila ismail, lau yee ling, nurul izzaty hassan.  (2024).  exploring diverse frontiers: advancements of bioactive 4-aminoquinoline-based molecular hybrids in targeted therapeutics and beyond.  - european journal of medicinal chemistry.  1-27. 

sagir alva, rika sri utami, melny andrian, arsyad widinugroho, aiman sajidah abd aziz, siti aishah hasbullah, deni shidqi khaerudini, dafit feriyanto, kee shyuan loh, edy herianto majlan.  (2024).  new acrylate co-polymer membrane synthetized by photo-polymerization technique for lead (ii) ion-selective electrode.  - portugaliae electrochimica acta.  337-354. 

lekkala ravindar, siti aishah hasbullah, k.p. rakesh, saki raheem, norzila ismail, lau yee ling, nurul izzaty hassan.  (2024).  pyridine and pyrimidine hybrids as privileged scaffolds in antimalarial drug discovery: a recent development.  - bioorganic & medicinal chemistry letters.  1 - 20. 

lekkala ravindar, ng yan hong, khairul azreena bakar, ahmad fadhlurrahman bin ahmad hidayat, shevin rizal feroz, saki raheem, siti aishah hasbullah, nurul izzaty hassan.  (2024).  synthesis, molecular docking and heme detoxification of pyrano[2,3-c]pyrazole-aminoquinoline hybrids as potential antimalarial agents.  - sains malaysiana.  1745 - 1760. 

amatul hamizah ali, nur hafizah mukhtar, ng yee ling, nur aqilah zahirah norazmi, hani kartini agustar, lau yee ling, nurul huda abd karim, siti fairus mohd yusoff, mostafa yousefzadeh borzehandani, nurul izzaty hassan.  (2024).  sintesis, aktiviti antimalaria dan pendekatan dinamik molekul kompleks logam salofen .  - sains malaysiana.  1901 - 1912. 

ravindar lekkala, yan hong ng, shevin rizal feroz, nur aqilah zahirah binti norazmi, amatul hamizah ali, siti aishah hasbullah, norzila ismail, hani kartini agustar, yee ling lau, nurul izzaty hassan.  (2024).  design and synthesis of pyrano[2,3-c]pyrazole-4-aminoquinoline hybrids as effective antimalarial compounds.  - european journal of medicinal chemistry.  1 - 14. 

hasanain salah naeem, israa jaber, suhaila sapari, fazira ilyana abdul razak, bilal majid rudaini, nurul hidayah abd razak, asmaa. soheil. najm, siti aishah hasbullah.  (2024).  microwave vs. reflux synthesis of bis-thiourea derivative: yield optimization, crystallographic understanding and optical sensing potential.  - sains malaysiana.  1937 - 1952. 

noraisyah abdul kadir jilani, emma izzati zakariah, eda yuhana ariffin, suhaila sapari, devika nokarajoo, bohari yamin, siti aishah hasbullah.  (2023).  highly sensitive pork meat detection using copper(ii) tetraaza complex by electrochemical biosensor.  - rsc advances.  2104-2114. 

lekkala ravindar, siti aishah hasbullah, k.p. rakesh, nurul izzaty hassan.  (2023).  pyrazole and pyrazoline derivatives as antimalarial agents: a key review.  - european journal of pharmaceutical sciences.  1-30. 

lekkala ravindar, siti aishah hasbullah, k.p. rakesh, nurul izzaty hassan.  (2023).  recent developments in antimalarial activities of 4-aminoquinoline derivatives.  - euroepan journal of medicinal chemistry.  1-36. 

noraisyah abdul kadir jilani , natsuhisa oka, kaori ando, siti aishah hasbullah.  (2023).  synthesis, characterisation and binding evaluation of new 6-amidinoindole compound as the potential heme binder.  - sains malaysiana.  1231-1242. 

lekkala ravindar, siti aishah hasbullah, k.p. rakesh, nurul izzaty hassan.  (2023).  triazole hybrid compounds: a new frontier in malaria treatment.  - european journal of medicinal chemistry.  1-23. 

ashraff aziz marhoon, siti aishah hasbullah, n. asikin-mijan, wan nur aini wan mokhtar.  (2023).  hydrothermal synthesis of high-purity zeolite x from coal fly ash for heavy metal removal: kinetic and isotherm analysis.  - advanced powder technology.  1-14. 

a. s. najm, hasanain salah naeem, khalid o. alabboodi, siti aishah hasbullah, hiba ali hasan, araa mebdir holi, asla abdullah al-zahrani, k. sopian, badariah bais, hasan sh. majdi, abbas j. sultan.  (2022).  new systematic study approach of green synthesis cds thin flm via salvia dye.  - scientific reports.  1-21. 

lekkala ravindar, siti aishah hasbullah, nurul izzaty hassan, hua-li qin.  (2022).  cross-coupling of c-h and n-h bonds: a hydrogen evolution strategy for the construction of c-n bonds.  - european journal of organic chemistry.  1-79. 

a.s. najm, hasanain salah naeem, hasan sh. majdi, siti aishah hasbullah, hiba ali hasan, k. sopian, badariah bais, heidar j.al iessa, hayder a. dhahad, jamal m. ali, abbas j. sultan.  (2022).  an in depth analysis of nucleation and growth mechanism of cds thin flm synthesized by chemical bath deposition (cbd) technique.  - scientific reports.  1-20. 

asmaa soheil najm,hasanain salah naeem,duaa abdul rida musa alwarid,abdulwahab aljuhani,siti aishah hasbullah,hiba ali hasan,kamaruzzaman sopian, badariah bais,heidar j. al iessa,hasan sh. majdi,abbas j. sultan,hazim moria.  (2022).  mechanism of chemical bath deposition of cds thin films: influence of sulphur precursor concentration on microstructural and optoelectronic characterizations.  - coatings.  1-22. 

eda yuhana-ariffin, siti syahraini sulaiman, noraisyah abdul kadir jilani, devika nokarajoo, nurul hidayah abdul razak, darfizzi derawi, siti aishah hasbullah.  (2022).  a new sensing material based on tetraaza/sba15 for rapid detection of copper(ii) ion in water.  - membranes.  1-15. 

devika nokarajoo, suhaila sapari, noraisyah abdul kadir jilani, fazira ilyana abdul razak, bohari yamin, siti aishah hasbullah.  (2022).  kajian potensi kompleks kuprum(ii)tetraaza sebagai ionofor pengesan ion iodida (study on the potential of copper(ii)tetraaza complex as ionophore for detecting iodide ion).  - sains malaysiana.  4197-4208. 

eda yuhana ariffin, emma izzati zakariah, farah ruslin, mohammad b. kassim, bohari m. yamin, lee yook heng, siti aishah hasbullah.  (2021).  hexaferrocenium tri[hexa(isothiocyanato)iron(iii)] trihydroxonium complex as a new dna intercalator for electrochemical dna biosensor.  - scientific reports.  1-14. 

suhaila sapari, emma izzati zakariah, nurul hidayah abdul razak, insyirah ramzan, mohd sofi numin, lee yook heng, siti aishah hasbullah.  (2021).  a comparative study of microwave-assisted and conventional heating methods of the synthesis of 1-(naphthalene-1-yl)-3-(o, m, p-tolyl)thioureas, dft analysis, antibacterial evaluation and drug-likeness.  - sains malaysiana.  743-751. 

azwan mat lazim, atisya rohadi, siti aishah hasbullah, mazlan mohamad, a.l. zulariff.  (2021).  kaedah gelombang mikro; alternatif sintesis sebatian heterosiklik konvensional.  - sains malaysiana.  1007-1016. 

wong sheryn, masayuki ninomiya, mamoru koketsu, siti aishah hasbullah.  (2020).  in-vitrocytotoxicity of synthesized phthalide-fusedindoles and indolines against hl-60 and hepg2cells.  - arabian journal of chemistry.  3856-3865. 

nurul hidayah abdul razak, ling ling tan, siti aishah hasbullah, lee yook heng.  (2020).  reflectance chemosensor based on bis-thiourea derivative as ionophore for copper(ii) ion detection.  - microchemical journal.  1-10. 

fatin ilyani nasir, wun fui mark-lee, yan yi chong, mohammad b. kassim, siti aishah hasbullah, douglas philp, nurul izzaty hassan.  (2020).  experimental and density functional theory investigation on imine formation using microwave irradiation.  - malaysian journal of analytical sciences society.  422-435. 

suhaila sapari, nurul hidayah abdul razak, siti aishah hasbullah, lee yook heng, kwok feng chong, ling ling tan.  (2020).  a regenerable screen-printed voltammetric hg(ii) ion sensor based on tris-thiourea organic chelating ligand grafted graphene nanomaterial.  - journal of electroanalytical chemistry.  1-9. 

kook shih ying, lee yook heng, nurul izzaty hassan, siti aishah hasbullah.  (2020).  a new and all-solid-state potentiometric aluminium ion sensor for water analysis.  - sensors.  1-20. 

yong wai haan, hussein m. al-bajalan, edison eukun sage, dharshini elangovan, noor liana mat yajit, nur maisarah sarizan, nicole zitzmann, jl kiappes, siti aishah hasbullah, nor hadiani ismail, mukram mohamed mackeen.  (2019).  alpha-glucosidase inhibition of lactone intermediates of the iminosugar deoxynojirimycin.  - jurnal teknologi.  121-128. 

suhaila sapari, emma izzati zakariah, noraisyah abdul kadir jilani, sheryn wong, mohammad fadzlee ngatiman, siti aishah hasbullah.  (2019).  crystal structure, hirshfeld analysis and dft study of 6,7-dimethoxy-3-[(5- chloro-1,3,3-trimethylindolin-2-ylidene)methyl]isobenzofuran-1(3h)-one.  - sains malaysiana.  1879-1882. 

nor diyana md sani, eda yuhana ariffin, sheryn wong, mohd asyraf shamsuddin, lee yook heng, jalifah latip, siti aishah hasbullah, nurul izzaty hassan.  (2019).  an electrochemical dna biosensor for carcinogenicity of anticancer compounds based on competition between methylene blue and oligonucleotides.  - sensors.  5111-5127. 

kook shih ying, fatimatul akma awang ngah, suhaila sapari, lee yook heng, siti aishah hasbullah.  (2019).  kajian pengkompleksan sebatian bis-tiourea dengan ion aluminium sebagai ionofor dalam pembangunan sensor ion potensiometri.  - sains malaysiana.  2649-2661. 

hamza m. abosadiya, el hassane anouar, salima m. abusaadiya, siti aishah hasbullah, bohari m. yamin.  (2018).  synthesis, characterization, crystal structures and dft studies of some new 1,2,4-triazole and triazolidin derivatives.  - journal of molecular structure.  315-326. 

imran fakhar, nasry jassim hussien, suhaila sapari, anmar hameed bloh, siti fairus mohd yusoff, siti aishah hasbullah, bohari yamin, sahilah abdul mutalib, mehdi salih shihab, emad yousif.  (2018).  synthesis , x-ray diffraction, theoretical, and anti-bacterial studies of bis-thiourea secondary amine.  - journal of molecular structure.  96-102. 

fatimatul akma awang ngah, emma izzati zakariah, imran fakhar, nurul izzaty hassan, lee yook heng, bohari yamin, and siti aishah hasbullah.  (2018).  a new thiourea compound as potential ionophore for metal ion sensor.  - indonesian journal of chemistry.  116-120. 

wong sheryn, fatimatul akma awang ngah, jalifah latip, nurul izzaty hassan dan siti aishah hasbullah.  (2018).  solvent-free microwave accelerated synthesis and structural characterization of phthalide-fused indolines.  - heterocycles.  . 

wong sheryn, jalifah latip, nurul izzaty hassan & siti aishah hasbullah.  (2018).  x-ray crystal structure and cation binding properties of a new phthalide-fused indoline derivative.  - sains malaysiana.  . 

imran fakhar, bohari muhammad yamin, sahilah abdul mutalib, siti aishah hasbullah.  (2018).  synthesis and binding behaviour of new isomers of bis-thiourea.  - sains malaysiana.  . 

nasry jassim hussien, siti fairus mohd yusoff*, yang farina, baidaa k.alrubaye, mohamad j. al-jeboori*, imran fakhar, siti aishah hasbullah, mehdi shihab.  (2018).  formation, spectral and theoretical studies of 1-(4,4-dimethyl-2,6- dithioxo-1,3,5-triazinan-1-yl)-3-(diethylaminocarbonyl)thiourea.  - journal of global pharma technology.  . 

suhaila sapari, sheryn wong, mohammad fadzlee ngatiman, huda misral, siti aishah hasbullah.  (2018).  crystal structure and hirshfeld analysis of 2-[bis(1-methyl-1h-indol-3-yl)methyl]benzoic acid.  - acta crystallography e.  . 

hudamisral, suhaila sapari, tajudin rahman, nazlina ibrahim , bohari m. yamin, siti aishah hasbullah.  (2018).  evaluation of novel n-(dibenzylcarbamothioyl)benzamide derivatives as antibacterial agents by using dft and drug-likeness assessment.  - journal of chemistry.  . 

kook shih ying, lee yook heng, nurul izzaty hassan, siti aishah hasbullah.  (2018).  a new copper ionophore n1, n3-bis [[3,5-bis(trifluoromethyl)phe-nyl] carbamothioyl] isophtalamide for potentiometric sensor.  - sains malaysiana.  . 

siti aishah hasbullah, syahidatul munirah raffik, nurnadzirah mat noh, emma izzati zakariah, fatimatul akma awang ngah, hamza milad abosadiya, bohari yamin.  (2017).  synthesis, characterization and structural study of new ethyl thiourea compounds and the preliminary naked-eye sensors for mercury and argentum metal ions.  - oriental journal of chemistry.  800-806. 

imran fakhar, bohari yamin, siti aishah hasbullah.  (2017).  a comparative study of the metal binding behavior of alanine based bis-thiourea isomers.  - chemistry central journal.  1-16. 

khairi suhud, siti aishah hasbullah, musa ahmad,lee yook heng and mohammad b. kassima.  (2017).  crystal structure of 4 methoxy n piperidine 1 carbonothioyl benzamide.  - acta cryst.  1530-1533. 

fatimatul akma awang ngah, emma izzati zakariah, nurul izzaty hassan, bohari yamin, suhaila sapari, siti aishah hasbullah.  (2017).  synthesis of thiourea derivatives and binding behavior towards the mercury ion.  - malaysian journal of analytical sciences.  1226-1234. 

hafizi ahyak, atisya rohadi, fatimatul akma awang ngah, bohari yamin, siti aishah hasbullah.  (2016).  penggunaan kaedah penyinaran mikrogelombang dalam sintesis terbitan tiourea.  - malaysian journal of analytical chemistry.  231-237. 

amalina ahmad, norhadisah mohd zaini, normazida rozi, nurul huda abd karim, siti aishah hasbullah, lee yook heng, sharina abu hanifah.  (2016).  a fluorescence phosphate sensor based on poly(glycidyl methacrylate) microspheres with aluminium-morin.  - malaysian journal of analytical sciences.  704-712. 

nurul izni abdullah halid, emma izzati zakariah, lee yook heng, nurul huda abd karim, haslina ahmad, siti aishah hasbullah.  (2016).  fabrikasi biosensor dna porsin berasaskan kompleks rutenium bipiridina.  - malaysian journal of analytical sciences.  1020-1032. 

halid n.i.a., zakariah e.i., heng l.y., nurul huda abd karim, ahmad h., hasbullah s.a..  (2016).  fabrication of porcine dna biosensor based on ruthenium bipyridine complex [fabrikasi biosensor dna porsin berasaskan kompleks rutenium bipiridina].  - malaysian journal of analytical sciences.  1020-1032. 

hamzah,m. abosadiya, siti aishah hasbullah, jumina and bohari m yamin.  (2015).  synthesis and crystal structure of a ternary lattice inclusion system of c-acetomidophenyl calix[4]-2-methylresorcinarene dimethylsulfoxide tetrasolvate dihydrate.  - bulletin of the korean chemical society.  1-6. 

daniel chong jun weng, jalifah binti latip ,siti aishah binti hasbullah & harjono sastrohamidjojo.  (2015).  separation of geraniol from citronellol by selective oxidation of geraniol to geranial (pengasingan geraniol daripada sitronelol melalui pengoksidaan memilih geraniol kepada geranial).  - sains malaysiana.  1183-1188. 

khairi suhud, lee yook heng, siti aishah hasbullah, musa ahmad and mohammad b. kassim.  (2015).  crystal structure of 4-methoxy-n-[(pyrrolidin-1-yl)carbothioyl]benzamide.  - acta crystallographica section e: structure reports online.  o225-o226. 

khairi suhud, lee yook heng, madjid rezayi, aisha a. al-abbasi, siti aishah hasbullah, musa ahmad & mohammad b. kassim.  (2015).  conductometric studies of the thermodynamics for complexation of 1,1- diethyl-3-(4-methoxybenzoyl)thiourea and cobalt(ii) cation in aqueous binary mixtures of polar organic solvents.  - journal of solution chemistry.  181-192. 

hamza m. abosadiya, el hassane anouar, siti aishah hasbullah and bohari m yamin.  (2015).  synthesis, x-ray, nmr, ft-ir, uv/vis,dft and td-dftstudies of n-(4- chlorobutanoyl)-n`-(2,3 and 4-methylphenyl)thiourea derivatives..  - spectrochimica acta. part a.molecular and biomolecular spectroscopy.  115-124. 

hamza m abosadiya, siti aishah hasbullah, bohari yamin.  (2015).  synthesis, characterisation and x-ray structure of n-(4-bromobutanoyl-n`-(2-3- and 4-methylphenyl)thiourea.  - chinese journal of structural chemistry.  379-385. 

rumaisa nordin, siti aishah hasbullah, nurul izzaty hassan and azwan mat lazim.  (2014).  spiropyran as a rapid detector of tin in solid and liquid state and their toxicity test.  - international journal of applied chemistry.  113-120. 

rumaisa nordin, m.nasir m. arip, siti aishah hasbullah, nurul huda abdul karim, azwan mat lazim.  (2014).  metallo- and ionochromic study of spiropyran as a multiresponsive sensor in liquid and solid state.  - international of chemtech research.  3816-3821. 

hamza m abosadiya, siti aishah hasbullah, bohari m yamin and abidatul h fadzil.  (2014).  1-(4-bromophenyl)-3-(3-chloropropanoyl)thiourea.  - acta crystallographica section e.  o685, sup 1-6. 

hamza m abosadiya, siti aishah hasbullah, bohari m yamin and abidatul a fadzil.  (2014).  1-(4-chlorobutanoyl)-3-(3-chlorophenyl)thiourea.  - acta crystallographica section e.  o675, sup 1-6. 

bohari m yamin, sara maira m. hizam, siti fairus m yusof and siti aishah hasbullah.  (2014).  n-[ethyl(2-hydroxyethyl) carbamothioyl]-2-methylbenzamide.  - acta crystallographica section e.  E70, o602:1-6.. 

nor wahida. awang, siti aishah hasbullah, siti fairus m. yusoff and bohari m. yamin.  (2014).  n-[ethyl(2-hydroxyethyl)carbamothioyl]- 3-fluorobenzamide.  - acta crystallographica section e.  E70:o570. 

atisya rohadi, siti aishah hasbullah, azwan mat lazim, rumaisa nordin.  (2014).  improving the synthesis of spiropyran derivatives using microwave irradiation method.  - heterocycles.  89(4):1017-1024. 

bohari m yamin, suhaila sapari and siti aishah hasbullah.  (2014).  2,4-dichloro-n-[ethyl(2-hydroxyethyl)carbamothioyl]benzamide.  - acta crystallographica section e.  E70, o33, supp 1-6. 

hamza m abosadiya , siti aishah hasbullah, mukram mohamed mackeen seow chew low, nazlina ibrahim, mamoru koketsu and bohari m yamin*.  (2013).  synthesis, characterization, x-ray structure and biological activities of c-5-bromo-2-hydroxyphenylcalix[4]-2-methyl resorcinarene.  - molecules.  13369-13384. 

bohari m yamin, diyana yusof, siti aishah hasbullah.  (2013).  3-chloro-n-[n-(furan-2-carbonyl)hydrazinocarbothio-yl]benzamide.  - acta crystalloghraphica section e.  E69, o1567. 

mohamad nasir mat arip, lee yook heng, musa ahmad, siti aishah hasbullah.  (2013).  reaction of 2,6-dichloroquinone-4-chloroimide (gibbs reagent) with permethrin-an optical sensor for rapid detection of permethrin in treated wood.  - chemistry central journal.  7:122. 

suria ramli, azwani m. lazim, siti aishah hasbullah.  (2013).  changes on the solid fat content of palm oil/sunflower oil blends via interesterification.  - malaysian journal of analytical sciences.  164-170. 

suhaila sapari, bohari m. yamin and siti aishah hasbullah.  (2013).  crystal structure of 2,4-dichloro-n-(ethyl(2-hydroxyethyl)carbamothioyl)benzamide c12h14ci2n2o2s.  - zeitschrift fur kristallographie-new crystal structures.  228:465-466. 

bohari m yamin, suhaila sapari, siti aishah hasbullah.  (2013).  2,4-dichloro-n-[ethyl(2-hydroxyethyl)carbamothiyl]benzamide.  - acta crystalloghraphica section e.  E70:o33. 

rumaisa nordin, azwani mat lazim, atisya rohadi, siti aishah hasbullah.  (2013).  preparation and activation of spiropyran-merocyanine system.  - malaysian journal of analytical sciences.  17(3):422-429. 

halima f. salem, siti aishah hasbullah and bohari m. yamin.  (2012).  2-aminocyclohexan-1-aminium thiocyanate.  - acta crystallographica section e.  E68:01732.