Items where Author is "Yap, Wing Fen"

Zhi, Wei Loh and Mohd Zaid, Mohd Hafiz and Awang Kechik, Mohd Mustafa and Yap, Wing Fen and Yaakob, Yazid and Mayzan, Mohd Zul Hilmi and Shahira Liza and Wei, Mun Cheong (2022) Effect of CaF2/P2O5 ratios on physical and mechanical properties of novel CaO-Na2O-B2O3-SiO2 glasses. Journal of Physics and Chemistry of Solids, 171. art. no. 110991. pp. 1-7. ISSN 0022-3697; ESSN: 1879-2553

Zhi, Wei Loh and Wei, Mun Cheong and Mohd Zaid, Mohd Hafiz and Kechik, Mohd Mustafa Awang and Yap, Wing Fen and Mayzan, Mohd Zul Hilmi and Yaakob, Yazid and Shahira Liza (2022) Development of fluoride-containing glass–ceramics using eggshells waste as calcium source. Applied Physics A, 128 (10). art. no. 893. ISSN 0947-8396; ESSN: 1432-0630

Kamal Eddin, Faten Bashar and Yap, Wing Fen and Sadrolhosseini, Amir Reza and Liew, Josephine Ying Chyi and Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim (2022) Optical property analysis of chitosan-graphene quantum dots thin film and dopamine using surface plasmon resonance spectroscopy. Plasmonics, 17. 1985 - 9197. ISSN 1557-1955; ESSN: 1557-1963

Mustapha Kamil, Yasmin and Al-Rekabi, Sura Hmoud and Abu Bakar, Muhammad Hafiz and Yap, Wing Fen and Mohammed, Husam Abduldaem and Mohamed Halip, Nor Hafizah and Alresheedi, Mohammed Thamer and Mahdi, Mohd Adzir (2022) Arsenic detection using surface plasmon resonance sensor with hydrous ferric oxide layer. Photonic Sensors, 12 (3). art. no. 220306. pp. 1-8. ISSN 1674-9251; ESSN: 2190-7439

Ismail, Nur Atikah Nazihah and Mohd Zaid, Mohd Hafiz and Matori, Khamirul Amin and Yap, Wing Fen and Zalamin, Siti Norul Fadhilah and Mohamad Yamin, Nurul Afiqah (2022) Enlightening the structural, elastic, and luminescence properties of transparent Zn2SiO4 glass-ceramic by precipitation of Gd2O3 as dopant. Optical Materials, 131. art. no. 112602. pp. 1-8. ISSN 0925-3467; ESSN: 1873-1252

Kang, Jian Xian and Abdullah, Huda and Yuliarto, Brian and Md Akhtaruzzaman and Othman, Mohd Hafiz Dzarfan and Yap, Wing Fen and Mohamad, Md Fauzi (2022) Morphology and electron circulation of ZTO (zinc tin oxide) on SLG for CZTS thin film solar cell. In: 2022 IEEE 20th Student Conference on Research and Development (SCOReD), 8-9 Nov. 2022, Bangi, Malaysia. (pp. 119-125).

Anuar, Muhammad Fahmi and Yap, Wing Fen and Azizan, Muhammad Zakwan and Rahmat, Fida’i and Mohd Zaid, Mohd Hafiz and Mohamed Khaidir, Rahayu Emilia and Sheh Omar, Nur Alia (2021) Sustainable production of arecanut husk ash as potential silica replacement for synthesis of silicate-based glass-ceramics materials. Materials, 14 (5). art. no. 1141. pp. 1-12. ISSN 1996-1944

Rahmat, Fida’i and Yap, Wing Fen and Anuar, Muhammad Fahmi and Sheh Omar, Nur Alia and Mohd Zaid, Mohd Hafiz and Matori, Khamirul Amin and Mohamed Khaidir, Rahayu Emilia (2021) Synthesis and characterization of ZnO-SiO2 composite using oil palm empty fruit bunch as a potential silica source. Molecules, 26 (4). art. no. 1061. pp. 1-11. ISSN 1431-5165; ESSN: 1420-3049

Sadrolhosseini, Amir Reza and Habibiasr, Mina and Soleimani, Hassan and Hamidon, Mohd Nizar and Yap, Wing Fen and Lim, H. N. (2021) Surface plasmon resonance sensor to detect n-hexane in palm kernel oil using polypyrrole nanoparticles reduced graphene oxide layer. Journal of Sensors, 2021. art. no. 8813801. pp. 1-13. ISSN 1687-725X; ESSN: 1687-7268

Sheh Omar, Nur Alia and Yap, Wing Fen and Ramli, Irmawati and Mohd Azmi, Umi Zulaikha and Hashim, Hazwani Suhaila and Abdullah, Jaafar and Mahdi, Mohd Adzir (2021) Cellulose and vanadium plasmonic sensor to measure Ni2+ ions. Applied Sciences-Basel, 11 (7). art. no. 2963. pp. 1-16. ISSN 2076-3417

Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Yap, Wing Fen and Abdullah, Jaafar and Sadrolhosseini, Amir Reza and Mahdi, Mohd Adzir (2021) Design and optimization of surface plasmon resonance spectroscopy for optical constant characterization and potential sensing application: theoretical and experimental approaches. Photonics, 8 (9). art. no. 361. pp. 1-19. ISSN 2304-6732

Md Ramdzan, Nur Syahira and Yap, Wing Fen and Ying, Josephine Chyi Liew and Sheh Omar, Nur Alia and Anas, Nur Ain Asyiqin and Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Muhamad Fauzi, Nurul 'Illya (2021) Exploration on structural and optical properties of nanocrystalline cellulose/Poly(3,4-Ethylenedioxythiophene) thin film for potential plasmonic sensing application. Photonics, 8 (10). pp. 1-14. ISSN 2304-6732

Hashim, Hazwani Suhaila and Yap, Wing Fen and Sheh Omar, Nur Alia and Fauzi, Nurul Illya Muhamad (2021) Sensing methods for hazardous phenolic compounds based on graphene and conducting polymers-based materials. Chemosensors, 9 (10). art. no. 291. 291 - 330. ISSN 2227-9040

Omar, Nur Alia Sheh and Yap, Wing Fen and Ramli, Irmawati and Sadrolhosseini, Amir Reza and Abdullah, Jaafar and Yusof, Nor Azah and Mustapha Kamil, Yasmin and Mahdi, Mohd Adzir (2021) An optical sensor for dengue envelope proteins using Polyamidoamine Dendrimer biopolymer-based nanocomposite thin film: enhanced sensitivity, selectivity, and recovery studies. Polymers, 13 (5). art. no. 762. pp. 1-14. ISSN 2073-4360

Hussain, Mohd Rizal and Abdul Rahim, Nor Syazila and Abdul Aziz, Fatma Azwani and Umar, Rahmawati and Yap, Wing Fen and Hassan, Aminuddin and Md Shahril, Norshahilda and Mohd Fauzi, Muhammad Fathul Ariffin and Abdullah, Amini Amir (2021) The relationship between social support and demographic characteristics among Malaysian university students during the Covid-19 pandemic. International Journal of Human Resource Studies, 11 (4 spec.). 80 - 97. ISSN 2162-3058

Muhamad Fauzi, Nurul Illya and Yap, Wing Fen and Sheh Omar, Nur Alia and Saleviter, Silvan and Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Hashim, Hazwani Suhaila and Mohd Nasrullah (2020) Nanostructured chitosan/maghemite composites thin film for potential optical detection of mercury ion by surface plasmon resonance investigation. Polymers, 12 (7). pp. 1-13. ISSN 2073-4360

Anuar, Muhammad Fahmi and Yap, Wing Fen and Mohd Zaid, Mohd Hafiz and Sheh Omar, Nur Alia (2020) Optical studies of crystalline ZnO-SiO2 developed from pyrolysis of coconut husk. Materials Research Express, 7 (2020). pp. 1-6. ISSN 2053-1591

Usman, Fahad and Dennis, John Ojur and Mkawi, E. M. and Al-Hadeethi, Yas and Meriaudeau, Fabrice and Yap, Wing Fen and Sadrolhosseini, Amir Reza and Ferrell, Thomas L. and Alsadig, Ahmed and Sulieman, Abdelmoneim (2020) Acetone vapor-sensing properties of chitosan-polyethylene glycol using surface plasmon resonance technique. Polymers, 12 (11). art. no. 2586. pp. 1-17. ISSN 2073-4360

Mohamed Khaidir, Rahayu Emilia and Yap, Wing Fen and Mohd Zaid, Mohd Hafiz and Matori, Khamirul Amin and Sheh Omar, Nur Alia and Anuar, Muhammad Fahmi and Abdul Wahab, Siti Aisyah and Khirel Azman, Aisyah Zakiah (2020) Addition of ZnO nanoparticles on waste rice husk as potential host material for red-emitting phosphor. Materials Science in Semiconductor Processing, 106. art. no. 104774. pp. 1-11. ISSN 1369-8001

Muhammad Rosddi, Najwa Norimanina and Yap, Wing Fen and Anas, Nur Ain Asyiqin and Sheh Omar, Nur Alia and Md Ramdzan, Nur Syahira and Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim (2020) Cationically modified nanocrystalline cellulose/carboxyl-functionalized graphene quantum dots nanocomposite thin film: characterization and potential sensing application. Crystals, 10 (10). art. no. 875. pp. 1-12. ISSN 2073-4352

Usman, Fahad and Dennis, John Ojur and Meriaudeau, Fabrice and Ahmed, Abdelaziz Yousif and Khe, Cheng Seong and Yap, Wing Fen and Sadrolhosseini, Amir Reza and Abdulkadir, Bashir Abubakar and Ayinla, Ridwan Tobi and Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Sheh Omar, Nur Alia and Tamam, Nissren and Sulieman, Abdelmoneim (2020) Dependence of the optical constant parameters of p-toluene sulfonic acid-doped polyaniline and its composites on dispersion solvents. Molecules, 25 (19). pp. 1-12. ISSN 1420-3049

Hashim, Hazwani Suhaila and Yap, Wing Fen and Sheh Omar, Nur Alia and Abdullah, Jaafar and Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Saleviter, Silvan (2020) Detection of phenol by incorporation of gold modified-enzyme based graphene oxide thin film with surface plasmon resonance technique. Optics Express, 28 (7). pp. 9738-9752. ISSN 1094-4087

Md Ramdzan, Nur Syahira and Yap, Wing Fen and Anas, Nur Ain Asyiqin and Sheh Omar, Nur Alia and Saleviter, Silvan (2020) Development of biopolymer and conducting polymer-based optical sensors for heavy metal ion detection. Molecules, 25 (11). art. no. 2548. pp. 1-26. ISSN 1420-3049

Abdul Wahab, Rabiatul Adawiyah and Mohd Zaid, Mohd Hafiz and Ab Aziz, Sidek and Matori, Khamirul Amin and Yap, Wing Fen and Yaakob, Yazid (2020) Effects of sintering temperature variation on synthesis of glass-ceramic phosphor using rice husk ash as silica source. Materials, 13 (23). pp. 1-14. ISSN 1996-1944

Anas, Nur Ain Asyiqin and Yap, Wing Fen and Yusof, Nor Azah and Sheh Omar, Nur Alia and Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Md Ramdzan, Nur Syahira (2020) Highly sensitive surface plasmon resonance optical detection of ferric ion using CTAB/hydroxylated graphene quantum dots thin film. Journal of Applied Physics, 128 (8). pp. 1-11. ISSN 0021-8979, 1089-7550

Saleviter, Silvan and Yap, Wing Fen and Sheh Omar, Nur Alia and Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Abdullah, Jaafar and Mahdi, Mohd Adzir (2020) Label-free binding analysis of 4-(2-Pyridylazo)-resorcinol-based composite layer with cobalt ion using surface plasmon resonance optical sensor. Sensors and Materials, 32 (9 (1)). 2877 - 2889. ISSN 0914-4935

Sheh Omar, Nur Alia and Yap, Wing Fen and Abdullah, Jaafar and Sadrolhosseini, Amir Reza and Mustapha Kamil, Yasmin and Muhamad Fauzi, Nurul 'Illya and Hashim, Hazwani Suhaila and Mahdi, Mohd Adzir (2020) Quantitative and selective surface plasmon resonance response based on a reduced graphene oxide–polyamidoamine nanocomposite for detection of dengue virus E-proteins. Nanomaterials, 10 (3). art. no. 569. pp. 1-14. ISSN 2079-4991

Eddin, Faten Bashar Kamal and Yap, Wing Fen (2020) Recent advances in electrochemical and optical sensing of dopamine. Sensors, 20 (4). art. no. 1039. pp. 1-47. ISSN 1424-8220

Sadrolhosseini, Amir Reza and Nia, Pooria Moozarm and Naseri, Mahmoud and Mohammadi, Ahmad and Yap, Wing Fen and Shafie, Suhaidi and Mohamed Kamari, Halimah (2020) Surface plasmon resonance sensor based on polypyrrole–chitosan–BaFe2O4 nanocomposite layer to detect the sugar. Applied Sciences, 10 (8). art. no. 2855. pp. 1-11. ISSN 2076-3417

Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Yap, Wing Fen and Abdullah, Jaafar and Hashim, Hazwani Suhaila and Muhamad Fauzi, Nurul ‘Illya and Chanlek, Narong and Mahdi, Mohd Adzir (2020) X-ray photoelectron study on gold/nanocrystalline cellulose-graphene oxide thin film as surface plasmon resonance active layer for metal ion detection. Thin Solid Films, 713. pp. 1-10. ISSN 0040-6090; ESSN: 1879-2731

Anuar, Muhammad Fahmi and Yap, Wing Fen and Mohd Zaid, Mohd Hafiz and Matori, Khamirul Amin and Mohamed Khaidir, Rahayu Emilia (2020) The physical and optical studies of crystalline silica derived from the green synthesis of coconut husk ash. Applied Sciences, 10 (6). art. no. 2128. pp. 1-11. ISSN 2076-3417

Mohd Zaid, Mohd Hafiz and Matori, Khamirul Amin and Abd. Aziz, Sidek and Mohamed Kamari, Halimah and Yap, Wing Fen and Yaakob, Yazid and Sa'at, Nor Kamilah and Gyrol, Ali and Şakar, Erdem (2019) Effect of heat treatment temperature to the crystal growth and optical performance of Mn3O4 doped α-Zn2SiO4 based glass-ceramics. Results in Physics, 15. pp. 1-6. ISSN 2211-3797

Mustapha Kamil, Yasmin and Al-Rekabi, Sura Hmoud and Mohammed, Husam Abduldaem and Abu Bakar, Muhammad Hafiz and Kanagesan, Samikannu and Yap, Wing Fen and Mahdi, Mohd Adzir (2019) Di-iron trioxide hydrate-multi-walled carbon nanotube nanocomposite for arsenic detection using surface plasmon resonance technique. IEEE Photonics Journal, 11 (4). pp. 1-10. ISSN 1943-0655

Sheh Omar, Nur Alia and Yap, Wing Fen and Abdullah, Jaafar and Mat Zaid, Mohd Hazani and Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Mahdi, Mohd Adzir (2019) Sensitive surface plasmon resonance performance of cadmium sulfide quantum dots-amine functionalized graphene oxide based thin film towards dengue virus E-protein. Optics & Laser Technology, 114. pp. 204-208. ISSN 0030-3992; ESSN: 1879-2545

Mohamed Khaidir, Rahayu Emilia and Yap, Wing Fen and Mohd Zaid, Mohd Hafiz and Matori, Khamirul Amin and Sheh Omar, Nur Alia and Anuar, Muhammad Fahmi and Abdul Wahab, Siti Aisyah and Khirel Azman, Aisyah Zakiah (2019) Optical band gap and photoluminescence studies of Eu3+-doped zinc silicate derived from waste rice husks. Optik, 182. pp. 486-495. ISSN 0030-4026; ESSN: 1618-1336

Sheh Omar, Nur Alia and Yap, Wing Fen and Saleviter, Silvan and Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Anas, Nur Ain Asyiqin and Md Ramdzan, Nur Syahira and Roshidi, Mohammad Danial Aizad (2019) Development of a graphene-based surface plasmon resonance optical sensor chip for potential biomedical application. Materials, 12 (12). art. no. 1928. pp. 1-14. ISSN 1996-1944

Anas, Nur Ain Asyiqin and Yap, Wing Fen and Sheh Omar, Nur Alia and Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Md Ramdzan, Nur Syahira and Saleviter, Silvan (2019) Development of graphene quantum dots-based optical sensor for toxic metal ion detection. Sensors, 19 (18). art. no. 3850. pp. 1-30. ISSN 1424-8220

Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Yap, Wing Fen and Abdullah, Jaafar and Sadrolhosseini, Amir Reza and Saleviter, Silvan and Omar, Nur Alia Sheh (2019) Label-free optical spectroscopy for characterizing binding properties of highly sensitive nanocrystalline cellulose-graphene oxide based nanocomposite towards nickel ion. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 212. pp. 25-31. ISSN 1386-1425

Sadrolhosseini, Amir Reza and Shafie, Suhaidi and Yap, Wing Fen (2019) Nanoplasmonic sensor based on surface plasmon coupled emission: review. Applied Sciences, 9 (7). art. no. 1497. pp. 1-13. ISSN 2076-3417

Sadrolhosseini, Amir Reza and Shafie, Suhaidi and Yap, Wing Fen (2019) Nanoplasmonic sensor based on surface plasmon-coupled emission: review. Applied Sciences, 9 (7). art. no. 1497. pp. 1-13. ISSN 2076-3417

Anas, Nur Ain Asyiqin and Yap, Wing Fen and Sheh Omar, Nur Alia and Md Ramdzan, Nur Syahira and Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Saleviter, Silvan and Zainudin, Afiq Azri (2019) Optical properties of chitosan/hydroxyl-functionalized graphene quantum dots thin film for potential optical detection of ferric (III) ion. Optics and Laser Technology, 120. art. no. 105724. pp. 1-8. ISSN 0030-3992

Abdullah, Jaafar and Yap, Wing Fen and Yusof, Nor Azah and Mastar, Amiruddin Ashil (2019) An optical based on graphene quantum dots for hydrogen peroxide detection. Malaysian Journal of Analytical Sciences, 23 (4). pp. 572-579. ISSN 1394-2506

Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Yap, Wing Fen and Abdullah, Jaafar and Sadrolhosseini, Amir Reza and Saleviter, Silvan and Sheh Omar, Nur Alia (2018) Exploration of surface plasmon resonance for sensing copper ion based on nanocrystalline cellulose-modified thin film. Optics Express, 26 (26). 34880 - 34893. ISSN 1094-4087

Lee, Han Kee and Ashari, Fakhrurrazi and Talib, Zainal Abidin and Yap, Wing Fen and Ahmad Kamarudin, Mazliana and Effendi, N. and Liew, Josephine Ying Chyi (2018) Concentration effect of Zinc Acetate dihydrate as precursor in preparing Zinc Selenide through hydrothermal method. Chalcogenide Letters, 15 (10). 509 - 514. ISSN 1584-8663

Sheh Omar, Nur Alia and Yap, Wing Fen and Abdullah, Jaafar and Mat Zaid, Mohd Hazani and Mahdi, Mohd Adzir (2018) Structural, optical and sensing properties of CdS-NH2GO thin film as a dengue virus E-protein sensing material. Optik, 171. 934 - 940. ISSN 0030-4026; ESSN: 1618-1336

Sheh Omar, Nur Alia and Yap, Wing Fen and Abdullah, Jaafar and Che Engku Chik, Che Engku Noramalina and Mahdi, Mohd Adzir (2018) Development of an optical sensor based on surface plasmon resonance phenomenon for diagnosis of dengue virus E-protein. Sensing and Bio-Sensing Research, 20. 16 - 21. ISSN 2214-1804

Yap, Wing Fen (2018) Karnival Jom Sains rangsang minat sains pelajar. [UPM News]

Zainudin, Afiq Azri and Yap, Wing Fen and Yusof, Nor Azah and Al-Rekabi, Sura Hmoud and Mahdi, Mohd Adzir and Sheh Omar, Nur Alia (2018) Incorporation of surface plasmon resonance with novel valinomycin doped chitosan-graphene oxide thin film for sensing potassium ion. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 191. 111 - 115. ISSN 1386-1425; ESSN: 1873-3557

Anuar, Muhammad Fahmi and Yap, Wing Fen and Mohd Zaid, Mohd Hafiz (2018) Coconut husk as potential sources for silica production. In: 2nd International Symposium on Advanced Materials and Nanotechnology (i-SAMN 2018), 15-16 Aug. 2018, The Everly Putrajaya, Malaysia. (pp. 26-27).

Mohamed Khaidir, Rahayu Emilia and Yap, Wing Fen and Mohd Zaid, Mohd Hafiz and Sheh Omar, Nur Alia (2018) Comprehensive study on structural properties of Zn2SiO4 glass formation derived from waste rice husks. In: 2nd International Symposium on Advanced Materials and Nanotechnology (i-SAMN 2018), 15-16 Aug. 2018, The Everly Putrajaya, Malaysia. (pp. 28-29).

Zainuddin, Nurul Hida and Yap, Wing Fen and Alwahib, Ali Abdulkhaleq Abdulhadi and Yaacob, Mohd Hanif and Sheh Omar, Nur Alia and Mahdi, Mohd Adzir (2018) Detection of adulterated honey by surface plasmon resonance optical sensor. OPTIK, 168. 134 - 139. ISSN 0030-4026; ESSN: 1618-1336

Sheh Omar, Nur Alia and Yap, Wing Fen and Abdullah, Jaafar and Mustapha Kamil, Yasmin and Saleviter, Silvan and Mahdi, Mohd Adzir (2018) Development of cadmium sulfide quantum dots-polyamidoamine dendrimer thin films for detection of dengue virus E-protein antigens. In: 2nd International Symposium on Advanced Materials and Nanotechnology (i-SAMN 2018), 15-16 Aug. 2018, The Everly Putrajaya, Malaysia. (pp. 52-53).

Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Saleviter, Silvan and Yap, Wing Fen (2018) Development of surface plasmon resonance spectroscopy for metal ion detection. Sensors and Materials, 30 (9 (1)). 2023 - 2038. ISSN 0914-4935; ESSN: 2435-0869

Azis, Raba’ah Syahidah and Che Muda, Nor Nadhirah and Hassan, Jumiah and Shaari, Abdul Halim and Ibrahim, Idza Riati and Mustaffa, Muhammad Syazwan and Sulaiman, Sakinah and Matori, Khamirul Amin and Yap, Wing Fen (2018) Effect of ratio in ammonium nitrate on structural, microstructural, magnetic and AC conductivity properties of BaFe12O19. Materials, 11 (11). pp. 1-22. ISSN 1996-1944; ESSN: 1996-1944

Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Yap, Wing Fen and Abdullah, Jaafar and Sheh Omar, Nur Alia (2018) Hexadecyltrimethylammonium bromide modified nanocrystalline cellulose/graphene oxide composite thin film incorporated with surface plasmon resonance spectroscopy for sensing copper ion. In: 2nd International Symposium on Advanced Materials and Nanotechnology (i-SAMN 2018), 15-16 Aug. 2018, The Everly Putrajaya, Malaysia. (pp. 70-71).

Azis, Raba'ah Syahidah and Sulaiman, Sakinah and Ibrahim, Idza Riati and Zakaria, Azmi and Hassan, Jumiah and Che Muda, Nor Nadhirah and Nazlan, Rodziah and M. Saiden, Norlaily and Yap, Wing Fen and Mustaffa, Syazwan and Matori, Khamirul Amin (2018) Influence of pH adjustment parameter for sol-gel modification on structural, microstructure and magnetic properties of nanocrystalline strontium ferrite. Nanoscale Research Letters, 13 (1). pp. 1-13. ISSN 1931-7573; ESSN: 1556-276X

Naseri, Mahmoud and Sadrolhosseini, Amir Reza and Yap, Wing Fen and Mahdi, Mohd Adzir (2018) Measurement of low magnesium concentration in aqueous solution. Sensors and Materials, 30 (5). 1019 - 1026. ISSN 0914-4935; ESSN: 2435-0869

Saleviter, Silvan and Yap, Wing Fen and Sheh Omar, Nur Alia and Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim (2018) Modication of gold active layer for detection cobalt ion via surface plasmon resonance spectroscopy. In: 2nd International Symposium on Advanced Materials and Nanotechnology (i-SAMN 2018), 15-16 Aug. 2018, The Everly Putrajaya, Malaysia. (pp. 68-69).

Saleviter, Silvan and Yap, Wing Fen and Sheh Omar, Nur Alia and Zainudin, Afiq Azri and Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim (2018) Optical and structural characterization of immobilized 4-(2-pyridylazo)resorcinol in chitosan-graphene oxide composite thin film and its potential for Co2+ sensing using surface plasmon resonance technique. Results in Physics, 11. pp. 118-122. ISSN 2211-3797

Sheh Omar, Nur Alia and Yap, Wing Fen and Abdullah, Jaafar and Anas, Nur Ain Asyiqin and Md Ramdzan, Nur Syahira and Mahdi, Mohd Adzir (2018) Optical and structural properties of cadmium sulphide quantum dots based thin films as potential sensing material for dengue virus E-protein. Results in Physics, 11. 734 - 739. ISSN 2211-3797

Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Yap, Wing Fen and Abdullah, Jaafar and Saleviter, Silvan and Sheh Omar, Nur Alia (2018) Preparation and characterization of hexadecyltrimethylammonium bromide modified nanocrystalline cellulose / graphene oxide composite thin film and its potential in sensing copper ion using surface plasmon resonance technique. Optik, 173. 71 - 77. ISSN 0030-4026

Sheh Omar, Nur Alia and Yap, Wing Fen (2018) Recent development of SPR spectroscopy as potential method for diagnosis of dengue virus E-protein. Sensor Review, 38 (1). 106 - 116. ISSN 0260-2288

Saleviter, Silvan and Yap, Wing Fen and Sheh Omar, Nur Alia and Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Abdullah, Jaafar and Mat Zaid, Mohd Hazani (2018) Structural and optical studies of cadmium sulfide quantum dots-graphene oxide-chitosan nanocomposite thin film as novel SPR spectroscopy active layer. Journal of Nanomaterials, 2018. art. no. 4324072. pp. 1-8. ISSN 1687-4110; ESSN: 1687-4129

Anuar, Muhammad Fahmi and Yap, Wing Fen and Mohd Zaid, Mohd Hafiz and Matori, Khamirul Amin and Mohamed Khaidir, Rahayu Emilia (2018) Synthesis and structural properties of coconut husk as potential silica source. Results in Physics, 11. pp. 1-4. ISSN ESSN: 2211-3797

Yap, Wing Fen and Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim and Saleviter, Silvan and Zainudin, Afiq Azri and Sheh Omar, Nur Alia (2018) A high potential optical method for sensitive and selective detection of essential elements. In: 2nd International Symposium on Advanced Materials and Nanotechnology (i-SAMN 2018), 15-16 Aug. 2018, The Everly Putrajaya, Malaysia. (pp. 66-67).

Mohd Rasdi, Norhafizah and Yap, Wing Fen and Azis, Raba’ah Syahidah and Sheh Omar, Nur Alia (2017) Photoluminescence studies of cobalt (II) doped zinc silicate nanophosphors prepared via sol-gel method. Optik, 149. 409 - 415. ISSN 0030-4026; ESSN: 1618-1336

Sheh Omar, Nur Alia and Yap, Wing Fen and Matori, Khamirul Amin (2017) Europium doped low cost Zn2SiO4 based glass ceramics: a study on fabrication, structural, energy band gap and luminescence properties. Materials Science in Semiconductor Processing, 61. 27 - 34. ISSN 1369-8001; ESSN: 1873-4081

Mohd Rasdi, Norhafizah and Yap, Wing Fen and Sheh Omar, Nur Alia and Azis, Raba'ah Syahidah and Mohd Zaid, Mohd Hafiz (2017) Effects of cobalt doping on structural, morphological, and optical properties of Zn2SiO4 nanophosphors prepared by sol-gel method. Results in Physics, 7. 3820 - 3825. ISSN 2211-3797

Zainudin, Afiq Azri and Yap, Wing Fen and Yusof, Nor Azah and Omar, Nur Alia Sheh (2017) Structural, optical and sensing properties of ionophore doped graphene based bionanocomposite thin film. Optik, 144. 308 - 315. ISSN 0030-4026; ESSN: 1618-1336

Sheh Omar, Nur Alia and Yap, Wing Fen and Matori, Khamirul Amin and Abdul Aziz, Sidek and Nadakkavil Alassan, Zarifah and Samsudin, Nur Farhana (2016) Development and characterization studies of Eu3+-doped Zn2SiO4 phosphors with waste silicate sources. Procedia Chemistry, 19. pp. 21-29. ISSN 1876-6196

Radzali, Rashidah and Osman, Nurul Huda and Yap, Wing Fen and Liew, Josephine Ying Chyi (2016) Electrical characterization of chitosan film for mercury ion detection by using four-point probe method. Asian Journal of Applied Sciences, 4 (5). pp. 1129-1135. ISSN 2321-0893

Samsudin, Nur Farhana and Matori, Khamirul Amin and Abdul Wahab, Zaidan and Yap, Wing Fen and Liew, Josephine Ying Chi and Lim, Way Foong and Mohd Zaid, Mohd Hafiz and Sheh Omar, Nur Alia (2016) Manganese modified structural and optical properties of zinc soda lime silica glasses. Applied Optics, 55 (9). pp. 2182-2187. ISSN 1559-128X; ESSN: 2155-3165

Sheh Omar, Nur Alia and Yap, Wing Fen and Matori, Khamirul Amin (2016) Photoluminescence properties of Eu3+-doped low cost zinc silicate based glass ceramics. Optik, 127 (8). pp. 3727-3729. ISSN 0030-4026; ESSN: 1618-1336

Sheh Omar, Nur Alia and Yap, Wing Fen and Matori, Khamirul Amin and Mohd Zaid, Mohd Hafiz and Samsudin, Nur Farhana (2016) Structural and optical properties of Eu3+ activated low cost zinc soda lime silica glasses. Results in Physics, 6 (1). pp. 640-644. ISSN 2211-3797

Ramli, Hanif and Chan, Kar Tim and Yap, Wing Fen (2016) Study of simple pendulum using tracker video analysis and high speed camera: an interactive approach to analyze oscillatory motion. Solid State Science and Technology, 24 (2). pp. 297-305. ISSN 0128-7389

Sheh Omar, Nur Alia and Yap, Wing Fen and Matori, Khamirul Amin and Mohd Zaid, Mohd Hafiz and Mohd Rasdi, Norhafizah and Mohammad, Nurzilla and Mohd Ismail, Maisarah Zamratul (2016) Synthesis and optical properties of europium doped zinc silicate prepared using low cost solid state reaction method. Journal of Materials Science: Materials in Electronics, 27 (2). pp. 1092-1099. ISSN 0957-4522; ESSN: 1573-482X

Yap, Wing Fen and Mat Yunus, Wan Mahmood and Yusof, Nor Azah and Ishak, Nurul Syahirah and Sheh Omar, Nur Alia and Zainudin, Afiq Azri (2015) Preparation, characterization and optical properties of ionophore doped chitosan biopolymer thin film and its potential application for sensing metal ion. Optik, 126 (23). pp. 4688-4692. ISSN 0030-4026; ESSN: 1618-1336

Yap, Wing Fen and Mat Yunus, Wan Mahmood and Talib, Zainal Abidin and Yusof, Nor Azah (2015) Development of surface plasmon resonance sensor for determining zinc ion using novel active nanolayers as probe. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 134. pp. 48-52. ISSN 1386-1425; ESSN: 1873-3557

Yap, Wing Fen and Mat Yunus, Wan Mahmood and Talib, Zainal Abidin and Yusof, Nor Azah (2015) Biopolymer-based thin film for sensor application. Advanced Materials Research, 1107. pp. 631-636. ISSN 1022-6680; ESSN: 1662-8985

Yap, Wing Fen and Mat Yunus, Wan Mahmood and Yusof, Nor Azah and Ibrahim, Nur Izzaiti and Zainudin, Afiq Azri (2014) Characterization and optical properties of L-cysteine/chitosan biocomposite thin film. European International Journal of Science and Technology, 3 (9). pp. 1-8. ISSN 2304-9693

Yap, Wing Fen Kongsi ilmu. in Harian Metro, (21 July 2014), V7-V7. (Call Number: 2014/7-007)

Yap, Wing Fen and Mohd Sabri, Luqman Al-Hakim (2014) Integration of LabVIEW for novel interactive learning courseware on digital electronics. International Journal for Innovation Education and Research, 2 (11). pp. 156-163. ISSN 2411-3123; ESSN: 2411-2933

Yap, Wing Fen Program cintai sains. in Harian Metro, (9 September 2013), V8-V8. (Call Number: UNSPECIFIED)

Yap, Wing Fen and Mat Yunus, Wan Mahmood (2013) Utilization of chitosan-based sensor thin films for the detection of lead ion by surface plasmon resonance optical sensor. IEEE Sensors Journal, 13 (5). pp. 1413-1418. ISSN 1530-437X

Yap, Wing Fen and Mat Yunus, Wan Mahmood and Talib, Zainal Abidin (2013) Analysis of Pb(II) ion sensing by crosslinked chitosan thin film using surface plasmon resonance spectroscopy. Optik, 124 (2). pp. 126-133. ISSN 0030-4026; ESSN: 1618-1336

Yap, Wing Fen and Mat Yunus, Wan Mahmood and Talib, Zainal Abidin and Yusof, Nor Azah (2013) Fabrication and evaluation of surface plasmon resonance optical sensor for heavy metal ions detection. In: 4th International Conference on Photonics (ICP2013), 28-30 Oct. 2013, Equatorial Hotel Melaka, Malaysia. (pp. 114-116).

Yap, Wing Fen and Mat Yunus, Wan Mahmood and Talib, Zainal Abidin (2013) Immobilization of tetrabutyl thiuram disulfide in chitosan thin film for sensing zinc ion using surface plasmon resonance spectroscopy. Sensors and Materials, 25 (2). pp. 99-108. ISSN 0914-4935

Yap, Wing Fen and Mat Yunus, Wan Mahmood (2013) Surface plasmon resonance spectroscopy as an alternative for sensing heavy metal ions : a review. Sensor Review, 33 (4). pp. 305-314. ISSN 0260-2288

Wan Mahmood Mat Yunus (2012) Optical sensor for surface plasmon resonance spectroscopy. PI2012003191.

Yap, Wing Fen and Mat Yunus, Wan Mahmood (2012) Optical characterization of multi layer thin films using surface plasmon resonance method: from electromagnetic theory to sensor application. In: 2nd International Conference on Fundamental and Applied Sciences (ICFAS2012), 12-14 June 2012, Kuala Lumpur Convention Centre, Kuala Lumpur. (pp. 132-135).

Yap, Wing Fen and Mat Yunus, Wan Mahmood and Abd. Moksin, Mohd Maarof and Talib, Zainal Abidin and Yusof, Nor Azah (2011) Surface plasmon resonance optical sensor for mercury ion detection by crosslinked chitosan thin film. Journal of Optoelectronics and Advanced Materials, 13 (3). pp. 279-285. ISSN 1454-4164; ESSN: 1841-7132

Mat Yunus, Wan Mahmood and Yap, Wing Fen (2011) Characterization of the optical properties of heavy metal ions using surface plasmon resonance technique. Optics and Photonics Journal , 1 (3). pp. 116-123. ISSN 2160-888; ESSN:2160-889X

Yap, Wing Fen and Mat Yunus , Wan Mahmood and Yusof, Nor Azah (2011) Detection of mercury and copper ions using surface plasmon resonance optical sensor. Sensors and Materials, 23 (6). pp. 325-334. ISSN 0914-4935

Yap, Wing Fen and Mat Yunus, Wan Mahmood and Abd. Moksin, Mohd Maarof and Talib, Zainal Abidin and Yusof, Nor Azah (2011) Optical properies of crosslinked chitosan thin film with glutaraldehyde using surface plasmon resonance technique. American Journal of Engineering and Applied Sciences, 4 (1). pp. 61-65. ISSN 1941-7020; ESSN: 1941-7039

Mat Yunus, Wan Mahmood and Yusof, Nor Azah and Yap, Wing Fen (2011) Surface plasmon resonance optical sensor for detection of essential heavy metal ions with potential toxicity: copper, zinc and manganes. Sensor Letters, 9 (5). pp. 1704-1711. ISSN 1546-198X

Yap, Wing Fen and Mat Yunus, Wan Mahmood and Talib, Zainal Abidin and Yusof, Nor Azah (2011) X-ray photoelectron spectroscopy and atomic force microscopy studies on crosslinked chitosan thin film. International Journal of the Physical Sciences, 6 (11). pp. 2744-2749. ISSN 1992-1950

Mat Yunus, Wan Mahmood and Yap, Wing Fen and Lim, Mei Yee (2009) Refractive index and fourier transform infrared spectra of virgin coconut oil and virgin olive oil. American Journal of Applied Sciences, 6 (2). pp. 328-331. ISSN 1546-9239; ESSN: 1554-3641