TH – TechConnect Briefs

Mechanical alloying for green catalyst synthesis

Pithakratanayothin S., Tongsri R., Chaisuwan T., Wongkasemjit S., Chulalongkorn University, TH

Over a decade, bimetallic catalyst performed tremendously powerful catalytic activities in many fields of chemistry, especially, hydroxylation of benzene or phenol, and selective hydrogenation in α,β-unsaturated aldehyde due to its versatile properties from the second [...]

High potential of mesoporous ceria/ceria-zirconia synthesized via nanocasting pathway for catalytic applications

Jampa S., Luengnaruemitchai A., Chaisuwan T., Wongkasemjit S., Chulalongkorn University, TH

Presently, nanocasting process, an alternative synthesis pathway, has been widely employed to synthesize and design ordered nonsiliceous mesoporous materials. In this work, mesoporous ceria (CeO2) and mesoporous ceria-zirconia (CeO2-ZrO2), were successfully prepared via nanocasting method [...]

Catalytic activity of Cu-CeO2-ZrO2 for biodiesel production

Wongvitvichot W., Jampa S., Luengnaruemitchai A., Chaisuwan T., Wongkasemjit S., Chulalongkorn University, TH

Ceria-Zirconia (CeO2-ZrO2, CZ) was synthesized using two different methods, coprecipitation (copre) and nanocasting (nanocast), for using as support material for copper (Cu) catalyst. Cu-CeO2-ZrO2 (CuCZ) was applied for esterification reaction in biodiesel production. Structure and [...]

Optimal conditions to immobilize Trichoderma reesei on mesoporous ceria-zirconia support

Sayamnikorn K., Komolvanich T., Chaisuwan T., Luengnaruemitchai A., Wongkasemjit S., Chulalongkorn University, TH

Nowadays, the cost of bioethanol production from renewable resources is still too high. The significant barrier to improve economy and efficiency of the production process was the cost of enzyme for converting cellulosic biomass into [...]

Type of chemical reaction from cinnamaldehyde using nickel-tin intermetallics under mild conditions

Noomnual A., Pithakratanayothin S., Chaisuwan T., Wongkasemjit S., Chulalongkorn University, TH

Ni3Sn, Ni3Sn2, and Ni3Sn4 intermetallics, novel alloys, were synthesized via mechanical alloying technique, economical and environmentally friendly method. With different contents of nickel and tin, 43, 58, 73% of tin contents, Ni3Sn, Ni3Sn2, and Ni3Sn4, [...]

Influence of conjugating folic acid and methotrexate on physicochemical properties of P(CL)-mPEG nanoparticles

Issarachot O., Mahidol University, TH

The objective of this study was to investigate an effect of conjugating folic acid (FOL) as a targeting ligand and conjugating methotrexate (MTX) as an anticancer drug on the formation of targeted nanoparticles. Beginning with [...]

Effect of flame-made metal (M = Pt, Nb, Ru) -loaded In2O3 on NO2 gas sensing

Phanichphant S., Chiang Mai University, TH

Unloaded In2O3 and M-loaded (M = Pt, Nb and Ru) In2O3 nanoparticles loaded with 0.25–1.00wt% metal were successfully synthesized in a single step by the flame spray pyrolysis (FSP) technique. Unloaded In2O3 and M-loaded (M [...]

Comparisons of electrochemical sensors for heavy metals detection based on filter paper and transparency film substrate

Ruecha N., Rodthongkum N., Cate D.M., Chailapakul O., Henry C.S., Chulalongkorn Uiversity, TH

Electrochemical sensors based on filter paper and transparency film substrates have been prepared using screen-printing method for the detection of the heavy metals Pb2+, Cd2+, and Zn2+. The electrochemical characteristics of these electrodes were analyzed [...]

Physiologically-based Pharmacokinetic (PBPK) Model of TiO2 Nanoparticles’ Bio-distribution in Rat Tissues

Laomettachit T., Liangruksa M., National Science and Technology Development Agency, TH

The emerging of nanotechnology has increasingly gained expansions and applications in various materials science research and development. However, the exposure to nanoparticles and engineered nanomaterials can lead to adverse biological effects because the small sizes [...]

Comparisons of electrochemical sensors for heavy metals detection based on filter paper and transparency film substrate

Ruecha N., Rodthongkum N., Cate D.M., Chailapakul O., Henry C.S., Chulalongkorn Uiversity, TH

Electrochemical sensors based on filter paper and transparency film substrates have been prepared using screen-printing method for the detection of the heavy metals Pb2+, Cd2+, and Zn2+. The electrochemical characteristics of these electrodes were analyzed [...]