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Zhe Xiang,Xi Zhao,Guoxiang Wang,Chenze Qi,Sujing Zhou,Jinjing Li,Yong Gao 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.117 No.-
Pickering emulsions were promising platforms for the heterogeneous reactions due to both their largeinterfacial areas and high stability, whereas both the product separation and the emulsifier recoveryvia simple and efficient strategies for remain a concern. In this study, we constructed an efficient andrecyclable platform for interfacial catalytic reaction adopting pH-responsive n-decane-in-waterPickering emulsions. Pickering emulsions were prepared employing core cross-linked PEO45-PGMA74(CCE45G74) diblock copolymer worms as Pickering emulsifiers. CCE45G74 diblock copolymer worms wereprepared via the combination of photo-initiated polymerization induced self-assembly strategy and thecore covalent cross-linking with ethylenediamine. The prepared n-decane-in-water Pickering emulsionsshowed a high stability during the storage at the room temperature, whereas a rapid demulsification tookplace at a lower pH, such as 2.5. Alkali-catalyzed Claisen-Schmidt condensation reactions between benzaldehydeand acetone were conducted in n-decane-in-water Pickering emulsions at 30 C. The yield ofdibenzylidene acetone could reach 99% after 12 h of reaction. The reaction efficiency was far higher thanthat at the plain n-decane-water (30%). This catalytic platform could be repeatedly used for three cycles
A Fully Integrated SoC for Smart Capsule Providing In-Body Continuous pH and Temperature Monitoring
Liu, Heng,Jiang, Hanjun,Xia, Jingpei,Chi, Zhexiang,Li, Fule,Wang, Zhihua The Institute of Electronics and Information Engin 2016 Journal of semiconductor technology and science Vol.16 No.5
This paper presents a SoC (System-on-a-Chip) dedicated for a single-chip smart capsule which can be used to continuously monitor human alimentary canal pH and temperature values. The SoC is composed of the pH and temperature sensor interface circuit, a wireless transceiver, the power management circuit and the flow control logic. Fabricated in $0.18{\mu}m$ standard CMOS technology, the SoC occupies a die area of ${\sim}9 mm^2$. The SoC consumes 6.15 mW from a 3 V power supply, guaranteeing the smart capsule battery life is no less than 24 hours when using 50 mAh coin batteries. The experimental results show that measurement accuracy of the smart capsule is ${\pm}0.1$ pH and ${\pm}0.2^{\circ}C$ for pH and temperature sensing, respectively, which meets the requirement of in-body pH and temperature monitoring in clinical practice.
A Fully Integrated SoC for Smart Capsule Providing In-Body Continuous pH and Temperature Monitoring
Heng Liu,Hanjun Jiang,Jingpei Xia,Zhexiang Chi,Fule Li,Zhihua Wang 대한전자공학회 2016 Journal of semiconductor technology and science Vol.16 No.5
This paper presents a SoC (System-on-a-Chip) dedicated for a single-chip smart capsule which can be used to continuously monitor human alimentary canal pH and temperature values. The SoC is composed of the pH and temperature sensor interface circuit, a wireless transceiver, the power management circuit and the flow control logic. Fabricated in 0.18 μm standard CMOS technology, the SoC occupies a die area of ~9 mm². The SoC consumes 6.15 mW from a 3 V power supply, guaranteeing the smart capsule battery life is no less than 24 hours when using 50 mAh coin batteries. The experimental results show that measurement accuracy of the smart capsule is ±0.1 pH and ±0.2°C for pH and temperature sensing, respectively, which meets the requirement of in-body pH and temperature monitoring in clinical practice.