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Li Guochun,Li Jiaxin,Yang Ziyu 한국탄소학회 2024 Carbon Letters Vol.34 No.1
This study reports the synthesis of a novel graphene/chitosan/β-cyclodextrin composite material (GO/CS/β-CD) via a one-step chemical reduction method, which combines the advantages of graphene, chitosan, and β-cyclodextrin. The morphology and structure of the composite were characterized using various techniques, such as scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and Raman spectroscopy. Subsequently, sortase A (SA) was immobilized onto the GO/CS/β-CD for the detection of Staphylococcus aureus. The sensor exhibited a good linear relationship within the concentration range of 30–300 CFU/mL, with a detection limit of 12 CFU/mL. The GO/CS/β-CD composite material showed enhanced properties due to the synergistic effect of graphene, chitosan, and β-cyclodextrin. The immobilization of sortase A onto the composite material improved the sensitivity and selectivity of the sensor for the detection of S. aureus. This study presents a novel graphene/chitosan/β-cyclodextrin composite material with immobilized sortase A, demonstrating enhanced sensitivity and selectivity for the detection of Staphylococcus aureus, which has potential for the development of high-performance sensors in various fields.
Jiangbo He,Hua-Jie Zhu,Gui-Fen Luo,Guang-Ming Liu,Yan Li,Hao Chen,Shaopeng Chen,Xin Lu,Guochun Zhou,Yong-Xian Cheng 대한화학회 2010 Bulletin of the Korean Chemical Society Vol.31 No.8
The whole plant of Euphorbia helioscopia is an important traditional Chinese medicine. Fom its BuOH soluble extract,one new lactam (1), three new terpenoids (2-4) including a new naturally occurring compound, and three known compounds were isolated. Their structures were identified by spectroscopic evidences. In particular, the absolute configurations of side chain of compounds 1 and 2 were determined using computational methods.
He, Jiang-Bo,Zhu, Hua-Jie,Luo, Gui-Fen,Liu, Guang-Ming,Chen, Hao,Li, Yan,Chen, Shaopeng,Lu, Xin,Zhou, Guochun,Cheng, Yong-Xian Korean Chemical Society 2010 Bulletin of the Korean Chemical Society Vol.31 No.8
The whole plant of Euphorbia helioscopia is an important traditional Chinese medicine. Fom its BuOH soluble extract, one new lactam (1), three new terpenoids (2-4) including a new naturally occurring compound, and three known compounds were isolated. Their structures were identified by spectroscopic evidences. In particular, the absolute configurations of side chain of compounds 1 and 2 were determined using computational methods.