Dr. Yam Wan Sinn

 

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    Academic Qualifications

     

     

    1. B. Sc. (Hons.) (USM) 2004 

    2. Ph.D (USM) 2008

     

     

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    Research Interest 

     

     

    1. Organic Synthesis
    2. Ionic Liquid Crystals (ILCs) and their applications
    3. Liquid Crystal-Nanocomposites and their applications

     

     

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     Selected Publications

     

     

    1. Wan-Sinn Yam, Guan-Yeow Yeap (2011). Nematogenic and smectogenic liquid     crystals from new heterocyclic isoflavone derivatives: Synthesis, characterization and X-ray diffraction studies. Chinese Chemical Letters 22, 229-232.

    2. Guan Yeow Yeap, Tze Nee Chan, Wan Sinn Yam, Daisuke Takeuchi (2011). Influence of bromoalkyloxy side chain on mesomorphic behaviour in heterocyclic 7-(4-bromoalkyloxy)- 3-(4'-decyloxyphenyl)-4H-1-benzopyran-4-ones. Chinese Chemical Letters, 22, 947-950.

    3. Faheem Amir, Wan-Sinn Yam and Yen-Chin Koay (2011). Phytochemical constituents and Biological activities of Erythrina indica. European Journal of Chemistry 2 (4), 561‐565.

    4. Faheem Amir, Wan Sinn Yam & Koay Yen Chin (2011). Chemical constituents and biological applications of Lippia nodiflora. Archives of Pharmacy Practice.

    5. Tze Nee Chan, Zhibao Lu, Wan Sinn Yam, Guan Yeow Yeap and Corrie T Imrie (2012). Non-symmetric liquid crystal dimers containing an isoflavone moiety. Liq. Cryst., 39, 393-402.

    6. Tze Nee Chan, Wan Sinn Yam, Guan Yeow Yeap, Karolina Madrak, Anna Zep, Damian Pociecha and Ewa Gorecka (2012). A crossover from rod-shaped to bent-shaped insymmetric isoflavone liquid crystal trimers exhibiting unusual mesomorphic behaviour. J. Mat. Chem., 22, 11335-11339.

    7. Guan Yeow Yeap, Tze Nee Chan, Wan Sinn Yam, Karolina Madrak, Damian Pociechaand Ewa Gorecka (2012). Non-symmetric chiral isoflavone dimers: synthesis, characterization and mesomorphic behaviour. Liq. Cryst., iFirst, 1-7.

    8. Faheem Amir, Wan-Sinn Yam and Yen-Chin Koay (2012). Chemical constituents and biological properties of the marine soft coral Nephthea: A review (part 1). Tropical Journal of Pharmaceutical Research 11 (3), 485-498.

    9. Faheem Amir, Yen-Chin Koay and Wan-Sinn Yam (2012). Chemical constituents and biological properties of the marine soft coral Nephthea: A review (part 2). Tropical Journal of Pharmaceutical Research 11 (3), 499-517.

    10. Faheem Amir, Wan-Sinn Yam and Yen-Chin Koay (2012). Chemical constituents and biological activities of the genus Subergorgia. Pharmacognosy Reviews 6 (11), 74-80.

    11. Alex Keng-Chee Saw, Wan-Sinn Yam, Keng-Chong Wong & Choon-Sheen Lai (2015) AComparative Study of the Volatile Constituents of Southeast Asian Coffea arabica, Coffee liberica and Coffea robusta Green Beans and their Antioxidant Activities, Journal of Essential Oil Bearing Plants, 18:1, 64-73.

    12. Yuvaraj A R , Wan Sinn Yam, TzeNee Chan, YitPeng Goh and Gurumurthy Hegde (2015) New para-substituted non-symmetric isoflavones for their fast photo-switching ability: Synthesis and their liquid crystal characterization. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 135 (2015) 1115–1122.

     

     

     

     

    Conference Presentation

     

     

    1. Umairah bt. Rani and W.S.Yamand Synthesis, Characterization and Phase Property Investigation of A New Class of Hydrazine-based Liquid Crystal Dimers. Postgraduate Research Colloquium, School of Chemical Sciences, Universiti Sains Malaysia.Malaysia Institute of Pharmaceuticals and Nutraceuticals, Penang.2/12/2014 - 3/12/2014.

    2. H.M. Teo, W.S.Yam and C. H. Lai. Antioxidative Activities of Coffea liberica Green Beans and Its Phytochemical Constituents. XII International Conference on Medicinal and Aromatic Plants.Jen Hotel, Magazine Road, Penang.4/12/2014 - 5/12/2014.

    3. G. Hedge, W.S.Yam, A.R.Yuvaraj, M. M. Yusoff. Fast Photoswitching Azo Dyes. HPI-FAPS InternationalConference on Innovation in Polymer Science and Technology 2013 (IPST2013). Inna Garuda Hotel, Convention & Business Yogyakarta-Indonesia, October 7- 10, 2013.

    4. Hedge, G., Yuvaraj, A.R., Yam W.S., Yusoff, M. M. Fast Photoswitching lsoflavones For Photonic Applications. The Fourth International Conference and Workshops on Basic and Applied Science (4th ICOWOBAS) and Regional Annual Fundamental Science Symposium 2013 (11th RAFSS). Johor Bahru, Malaysia, 3rd-5th September, 2013.

    5. Yit-Peng Goh and Wan-Sinn Yam. Synthesis, Characterization and Phase Behaviour of Hydrazine-Based Non-Symmetric Trimers Liquid Crystal With Resorcinol As Linking Group 4th International Conference For Young Chemists 2013.

    6. Foong, S.Y., Wong, K.C,. Yam, W.S. Volatile contituents of the fruit of Hylocereus polyrhizus (Weber) Britton & Rose and Hylocereus undatus (Haworth) Britton & Rose and their antibacterial activities. 7th International Symposium in Science and Technology: Bridging Research for Advancement of Knowledge and Technology, Hotel Equitorial, Universiti Sains Malaysia, Pulau Pinang, 30 & 31 August, 2012.

     

     

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    Teaching 

     

     

    1. Organic Chemistry I

    2. Chemistry Practical VI - Organic

    3. Selected Topics in Organic Chemistry

     

     

     

    Supervision

     

     

    Postgraduates

     

      1. Ph.D (on-going)

        1. Yeap Choon Wan (Co-supervisor)


     

    1. M.Sc. (on-going)

      1. Umairah Abd Rani (Main supervisor)
      2. Teo Hui Min (Co-supervisor)


    2. M.Sc. (completed)


       

      1. Chua Cheng Peng (Main supervisor) (2011) Synthesis, characterization and structure-property studies of some chiral liquid crystal dimers.
      2. Chan Tze Nee (Co-supervisor) (2012) Synthesis, Characterization and Mesomorphic  Properties of Symmetric and Non-Symmetric Isoflavone Oligomers.
      3. Foong Shin Yee (Main-supervisor) (2014) Phytochemical Studies on Hylocereus polyrhizus (Fruit and Stem) and Hylocereus undatus (Fruit).
      4. Goh Yit Peng (Main supervisor) (2014) Synthesis, Characterization and Mesomorphic Properties of Non-Symmetric Hydrazine-Based Liquid Crystal Trimers.

    Undergraduates

    1. 16 students and counting.

     

     

     

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