scholarly journals Temperature-insensitive optical fiber strain sensor with ultra-low detection limit based on capillary-taper temperature compensation structure

2018 ◽  
Vol 26 (1) ◽  
pp. 477 ◽  
Author(s):  
Changpeng Lang ◽  
Yi Liu ◽  
Kunjian Cao ◽  
Shiliang Qu
Keyword(s):  
Detection Limit ◽  
Optical Fiber ◽  
Temperature Compensation ◽  
Strain Sensor ◽  
Compensation Structure ◽  
Low Detection Limit

High-Performance Wearable Strain Sensor Based on Graphene/Cotton Fabric with High Durability and Low Detection Limit

2019 ◽  
Vol 12 (1) ◽  
pp. 1474-1485 ◽  
Author(s):  
Yanjun Zheng ◽  
Yilong Li ◽  
Yujie Zhou ◽  
Kun Dai ◽  
Guoqiang Zheng ◽  
...  
Keyword(s):  
Detection Limit ◽  
Cotton Fabric ◽  
High Performance ◽  
Strain Sensor ◽  
Low Detection Limit ◽  
High Durability

An Optical Fiber Immunosensor With a Low Detection Limit Based on Plasmon Coupling Enhancement

2020 ◽  
Vol 38 (14) ◽  
pp. 3781-3788
Author(s):  
Botao Wang ◽  
Yanxiong Niu ◽  
Shaowei Zheng ◽  
Yiheng Yin ◽  
Ming Ding
Keyword(s):  
Detection Limit ◽  
Optical Fiber ◽  
Plasmon Coupling ◽  
Low Detection Limit

Optical fiber refractive index sensor with low detection limit and large dynamic range using a hybrid fiber interferometer

2019 ◽  
pp. 1-1 ◽  
Author(s):  
Xuegang Li ◽  
Stephen Christopher Warren-Smith ◽  
Heike Ebendorff-Heidepriem ◽  
Ya-nan Zhang ◽  
Linh Viet Nguyen
Keyword(s):  
Refractive Index ◽  
Detection Limit ◽  
Optical Fiber ◽  
Dynamic Range ◽  
Refractive Index Sensor ◽  
Large Dynamic Range ◽  
Hybrid Fiber ◽  
Low Detection Limit

Insecticide Residues on 1972 U.S. Auction-Market Tobacco

1975 ◽  
Vol 8 (1) ◽  
Author(s):  
J. J. Domanski ◽  
P. L. Haire ◽  
T.J. Sheets
Keyword(s):  
Detection Limit ◽  
Auction Market ◽  
Insecticide Residues ◽  
Low Detection Limit ◽  
Average Residue ◽  
The Individual ◽  
In Fire

AbstractAverage residue Ievels of DDT + TDE in flue-cured tobacco decreased from 6.1 ppm in 1970 to 0.85 ppm in 1972. DDT + TDE residues in Burley also dropped sharply from previous levels. In 1972 one sample from Kentucky contained 8.17 ppm; all other Burley samples were less than 0.25 ppm. DDT + TDE residues also declined in fire-cured and air-cured types; of these samples Tennessee dark air-cured tobacco contained the highest average residue (3.5 ppm of DDT + TDE). In 1972 over 90 % of the flue-cured samples were positive for toxaphene. Since each of our samples was a composite of tobacco from 10 farmers, we cannot conclude from this result that 90 % of the individual piles contained toxaphene. Significant amounts of toxaphene were found in other types also; for example, 50 % of the 1972 Burley samples had toxaphene concentrations greater than 0.5 ppm. Average endosulfan levels decreased between 1970 and 1972 in flue-cured and Burley tobaccos. However, in all of the dark air and dark fire-cured samples from Tennessee endosulfan residues exceeded 5 ppm. Average endrin residues were at or near the low detection limit in alI samples except fire-cured and dark air-cured tobacco from Tennessee; these averaged 0.26 and 0.17 ppm, respectively.

A simple method to construct a low-cost immunosensor based on a dithiol-functionalized polydopamine platform

2021 ◽  
Author(s):  
Bo Liu ◽  
Luanying Yang ◽  
Gang Wang ◽  
Sha He ◽  
Xiaobo Wang ◽  
...  
Keyword(s):  
Detection Limit ◽  
Linear Response ◽  
Low Cost ◽  
Covalent Immobilization ◽  
The Self ◽  
Simple Method ◽  
Low Detection Limit

A simple and low-cost electrochemical CEA immunosensor was investigated via the self-polymerization of dopamine and a dithiol compound spacer for the covalent immobilization of antibodies. The designed CEA immunosensor exhibited a linear response and a low detection limit.

An ultra-highly sensitive and selective self-enhanced AIECL sensor for public security early warning in a nuclear emergency via a co-reactive group poisoning mechanism

2021 ◽  
Author(s):  
Ziyu Wang ◽  
Meiyun Xu ◽  
Nan Zhang ◽  
Jian-Bin Pan ◽  
Xinqi Wu ◽  
...  
Keyword(s):  
Detection Limit ◽  
Early Warning ◽  
High Selectivity ◽  
Public Security ◽  
Reactive Group ◽  
Low Detection Limit ◽  
Highly Sensitive ◽  
Vapor Sensors ◽  
Nuclear Emergency

A mechanism of co-reactive group poisoning (CGP) was discovered for designing efficient I2 vapor sensors for early warning of a nuclear emergency, which give an ultra-low detection limit of 0.13 ppt as well as high selectivity.

Bifunctional 4MBA mediated recyclable SERS-based immunoassay induced by photocatalytic activity of TiO2 nanotube arrays

2016 ◽  
Vol 18 (34) ◽  
pp. 23795-23802 ◽  
Author(s):  
Xiaolong Wang ◽  
Lu Zhou ◽  
Wei Lai ◽  
Tao Jiang ◽  
Jun Zhou
Keyword(s):  
Density Functional Theory ◽  
Photocatalytic Activity ◽  
Detection Limit ◽  
Uv Irradiation ◽  
Density Functional ◽  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Nanotube Arrays ◽  
Functional Theory ◽  
Low Detection Limit

We present a recyclable SERS-based immunoassay for CA19-9 with a low detection limit of 5 U mL−1. The linking between TiO2-NTs and 4MBA was destroyed by catalyzing 4MBA into 4-sulfobenzoate upon UV irradiation, which was clarified by UPLC/ESI-tqMS and density functional theory.

Sign in / Sign up

Export Citation Format

Share Document