TY - GEN
T1 - A taste and odor sensing by photoluminescence responses of luminescent metal organic frameworks
AU - Lee, Hung Lin
AU - Lee, Tu
AU - Liu, Zheng Xin
AU - Tsai, Meng Hsun
AU - Tsai, Yee Chen
AU - Lin, Tsung Yan
AU - Cheng, Shao Liang
AU - Lee, Sheng Wei
AU - Hu, Jung Chih
AU - Chen, Lien Tai
PY - 2013
Y1 - 2013
N2 - The sensors of taste and odor play important roles of recognition as well as reception. In our research, the taste and odor sensing capabilities were based on the photoluminescence (PL) responses of luminescent metal-organic frameworks (MOFs). For the sensing of taste, [In(OH)(bdc)]n (bdc = 1,4-benzenedicarboxylate) and [Tb(btc)] (MOF-76, btc = benzene-1,3,5-tricarboxylate), were tested on aqueous solutions of five basic tastants such as sucrose (sweet), caffeine (bitter), citric acid (sour), sodium chloride (salty) and monosodium glutamate (umami). The photoluminescence (PL) responses of polyacrylic acid-chelated [In(OH)bdc]n and lanthanide Tb(btc) were used to demonstrate the applicability of MOF-based biomimetic tongue through: (1) identification of five tastes: sweet, bitter, sour, salty and umami, by 3-D PCA (principle component analysis) to distinguish the corresponding tastants, (2) quantification of the strength of five tastes determined by the relationships between the PL intensity and the τ scale of taste. For the sensing of odor, [In(OH)(bdc)]n and [Zn4O(bdc)3] (MOF-5) were exposed to the odorants such as cumin, cinnamon, vanillin, p-xylene, m-xylene, o-xylene, water, and ethanol. Similarly, the MOF-based biomimetic nose could distinguish the odors of the analytes based on a pattern recognition method (i.e., principal component analysis) constructed by the 2-D map of PL emission responses.
AB - The sensors of taste and odor play important roles of recognition as well as reception. In our research, the taste and odor sensing capabilities were based on the photoluminescence (PL) responses of luminescent metal-organic frameworks (MOFs). For the sensing of taste, [In(OH)(bdc)]n (bdc = 1,4-benzenedicarboxylate) and [Tb(btc)] (MOF-76, btc = benzene-1,3,5-tricarboxylate), were tested on aqueous solutions of five basic tastants such as sucrose (sweet), caffeine (bitter), citric acid (sour), sodium chloride (salty) and monosodium glutamate (umami). The photoluminescence (PL) responses of polyacrylic acid-chelated [In(OH)bdc]n and lanthanide Tb(btc) were used to demonstrate the applicability of MOF-based biomimetic tongue through: (1) identification of five tastes: sweet, bitter, sour, salty and umami, by 3-D PCA (principle component analysis) to distinguish the corresponding tastants, (2) quantification of the strength of five tastes determined by the relationships between the PL intensity and the τ scale of taste. For the sensing of odor, [In(OH)(bdc)]n and [Zn4O(bdc)3] (MOF-5) were exposed to the odorants such as cumin, cinnamon, vanillin, p-xylene, m-xylene, o-xylene, water, and ethanol. Similarly, the MOF-based biomimetic nose could distinguish the odors of the analytes based on a pattern recognition method (i.e., principal component analysis) constructed by the 2-D map of PL emission responses.
KW - Metal organic framework
KW - Odor sensing
KW - Photoluminescence
KW - Taste sensing
UR - http://www.scopus.com/inward/record.url?scp=84879655498&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.699.392
DO - 10.4028/www.scientific.net/AMR.699.392
M3 - 會議論文篇章
AN - SCOPUS:84879655498
SN - 9783037856758
T3 - Advanced Materials Research
SP - 392
EP - 397
BT - Materials Science and Chemical Engineering
T2 - 2013 International Conference on Materials Science and Chemical Engineering, MSCE 2013
Y2 - 20 February 2013 through 21 February 2013
ER -