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7. Research progress of plant-based meat products

Author

DOU Kang-ning, ZHAO Yong-gan, JIN Shao-ju, LI Chao-min, DENG Tong-xing, and ZHAO Zhi-jun

Subjects
plant-based meat products, plant protein, texturized protein, taste, animal meat, Food processing and manufacture, TP368-456
Abstract

The concept, raw materials, technology, texture, sensory, nutrition, market, patent and safety of plant-based meat products were reviewed, and the achievements and shortcomings of the development of plant-based meat products were summarized. It is indicated that the next researching should be done from the protein types of raw materials, protein molecular modification, texturized protein production technology, genetic engineering technology transformation, etc.

Published
2022
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17. Beetle‐Inspired Gradient Slant Structures for Capacitive Pressure Sensor with a Broad Linear Response Range.

Author

Wu, Lei, Li, Xuan, Choi, Jungrak, Zhao, Zhi‐Jun, Qian, Linmao, Yu, Bingjun, and Park, Inkyu

Subjects
CAPACITIVE sensors, PRESSURE sensors, ENVIRONMENTAL monitoring, DETECTION limit, COMPRESSIBILITY, SMART materials, UNIFORMITY
Abstract

Flexible pressure sensors with broad linearity range and excellent sensor‐to‐sensor uniformity have attracted unprecedented attention in the electronic skins, human–machine interfaces, and environmental monitoring. However, challenges including poor sensor‐to‐sensor uniformity owing to the randomness of the used nanomaterials or porous structures and saturated response that leads to a restricted linearity range because of structural stiffening have been yet addressed. Herein, a novel dielectric layer based on beetle‐inspired gradient slant structures (GSS) is proposed to endow capacitive pressure sensors with extensive linearity range and excellent sensor‐to‐sensor uniformity. The excellent compressibility of the GSS due to the bending deformation of the slant pillars significantly enhances sensor sensitivity. The broad linearity range comes from the compensation of contact area during sequential contact of the GSS dielectric layer from tall to low slant pillars with electrodes. The high sensor‐to‐sensor uniformity is ascribed to the excellent batch‐to‐batch consistency of prepared GSS via 3D printing‐based fabrication process. Moreover, the proposed GSS‐based pressure sensors present rapid response/recovery, low detection limit, excellent dynamic response, negligible hysteresis, and outstanding long‐term stability. Finally, the excellent applicabilities of proposed capacitive pressure sensors in diverse scenarios including external pressure stimuli detection, a flexible perception array, and a smart insole system are demonstrated. [ABSTRACT FROM AUTHOR]

Published
2024
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28. Differences in iNOS and Arginase Expression and Activity in the Macrophages of Rats Are Responsible for the Resistance against T. gondii Infection

Author

Li, Zhi, Zhao, Zhi-Jun, Zhu, Xing-Quan, Ren, Qing-Shi, Nie, Fang-Fang, Gao, Jiang-Mei, Gao, Xiao-Jie, Yang, Ting-Bao, Zhou, Wen-Liang, Shen, Ji-Long, Wang, Yong, Lu, Fang-Li, Chen, Xiao-Guang, Hide, Geoff, Ayala, Francisco J., and Lun, Zhao-Rong

Subjects
nitric-oxide synthase, activated murine macrophages, l-arginine metabolism, toxoplasma-gondii, peritoneal-macrophages, polyamine levels, rh strain, cells, mechanisms, immunity
Abstract

Toxoplasma gondii infects humans and warm blooded animals causing devastating disease worldwide. It has long been a mystery as to why the peritoneal macrophages of rats are naturally resistant to T. gondii infection while those of mice are not. Here, we report that high expression levels and activity of inducible nitric oxide synthase (iNOS) and low levels of arginase-1 (Arg 1) activity in the peritoneal macrophages of rats are responsible for their resistance against T. gondii infection, due to high nitric oxide and low polyamines within these cells. The opposite situation was observed in the peritoneal macrophages of mice. This discovery of the opposing functions of iNOS and Arg 1 in rodent peritoneal macrophages may lead to a better understanding of the resistance mechanisms of mammals, particularly humans and livestock, against T. gondii and other intracellular pathogens.

Published
2012

37. High-efficiency silicon nanowire array near infrared photodetectors via length control and SiOx surface passivation

Author

Son, Bongkwon, Shin, Sang-Ho, Zhao, Zhi-Jun, Ju, Byeong-Kwon, Jeong, Jun-Ho, Kim, Munho, Tan, Chuan Seng, and School of Electrical and Electronic Engineering

Subjects
Nanostructure, Electrical and electronic engineering [Engineering], Photodetectors
Abstract

Silicon (Si) nanowire (NW) array is a promising light-trapping platform due to the strong interaction between light and nanostructure. A photodetector benefits from the improved optical absorption in the Si NW array. Although the optical absorption increases with the NW length, the large NW length is not always preferable owing to the large surface area. Here, the systematic study on the Si NW array photodetectors with varied NW lengths is investigated. It is revealed that the photodetectors with 1 μm length provide a highest responsivity of 0.65 A W−1 and a specific detectivity of 1.40 × 109 cm Hz1/2 W−1 at the wavelength of 1000 nm, including the dark current of 54 μA at 1 V. In addition, the silicon oxide (SiOx) surface passivation is introduced to induce the high photogain. As a result, the responsivity is improved by 13 times (0.55 A W−1) at 1100 nm. This work proposes high-efficiency Si NW array photodetectors by the NW array length control and the SiOx surface passivation. Agency for Science, Technology and Research (A*STAR) Ministry of Education (MOE) National Research Foundation (NRF) Submitted/Accepted version This work was supported by the National Research Foundation, Singapore, under its Competitive Research Program (CRP Award NRF-CRP19-2017- 01), A*STAR Programmatic Funds (Program No. A18A7b0058), AME IRG grant (Grant No. A20E5c0095), Ministry of Education AcRF Tier 1 (Grant No. 2021-T1-002-031 (RG112/21)), and Ministry of Education AcRF Tier 2 (Grant Nos. T2EP50120-0001 and T2EP50121-0002). S.-H.S. acknowledges Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF- 2022R1I1A1A01053909) and the Brain Korea 21 Project in 2023.

Published
2023

39. High‐Efficiency Silicon Nanowire Array Near Infrared Photodetectors via Length Control and SiOx Surface Passivation.

Author

Son, Bongkwon, Shin, Sang‐Ho, Zhao, Zhi‐Jun, Ju, Byeong‐Kwon, Jeong, Jun‐Ho, Kim, Munho, and Tan, Chuan Seng

Subjects
SILICON nanowires, SURFACE passivation, PHOTODETECTORS, LIGHT absorption, SILICON oxide, NANOWIRES
Abstract

Silicon (Si) nanowire (NW) array is a promising light‐trapping platform due to the strong interaction between light and nanostructure. A photodetector benefits from the improved optical absorption in the Si NW array. Although the optical absorption increases with the NW length, the large NW length is not always preferable owing to the large surface area. Herein, the systematic study on the Si NW array photodetectors with varied NW lengths is investigated. It is revealed that the photodetectors with 1 µm length provide a highest responsivity of 0.65 A W−1 and a specific detectivity of 1.40 × 109 cm Hz1/2 W−1 at the wavelength of 1000 nm, including the dark current of 54 µA at 1 V. In addition, the silicon oxide (SiOx) surface passivation is introduced to induce the high photogain. As a result, the responsivity is improved by 13 times (0.55 A W−1) at 1100 nm. This work proposes high‐efficiency Si NW array photodetectors by the NW array length control and the SiOx surface passivation. [ABSTRACT FROM AUTHOR]

Published
2023
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