Gravity sensing is a valuable technique used for several applications, including fundamental physics, civil engineering, metrology, geology, and resource exploration. While classical gravimeters have proven useful, they face limitations, such as mechanical wear on the test masses, resulting in drift, and limited measurement speeds, hindering their use for long-term monitoring, as well as the need to average out microseismic vibrations, limiting their speed of data acquisition. Emerging sensors based on atom interferometry for gravity measurements could offer promising solutions to these limitations, and are currently advancing towards portable devices for real-world applications. This article provides a brief state-of-the-art review of portable atom interferometry-based quantum sensors and provides a perspective on routes towards improved sensors.
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http://dx.doi.org/10.3390/s23177651 | DOI Listing |
Spectrochim Acta A Mol Biomol Spectrosc
December 2024
School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, Guangdong 518060, PR China.
Psychological stress is a major contributor to individual health disparities. Accurate and quantitative detection of stress markers is crucial preventing mental health related problems. Supramolecular chemistry is widely used in drug delivery, catalysis, sensors and other applications.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
February 2025
Materials Science and Engineering, Shanghai University, Shanghai 200444, PR China; Institute for Sustainable Energy/College of Sciences, Shanghai University, Shanghai 200444, PR China. Electronic address:
Carbofuran (CBF), which exhibit high toxicity, persistent residues, ease of accumulation, and resistance to degradation, pose serious threats to human health and harm the ecological environment. Therefore, there is an urgent need to develop a rapid and accurate method for detecting CBF. In this work, a low-cost, portable, and easy-to-use paper chip biosensor was developed, integrating smartphones for the detection of CBF pesticide residues.
View Article and Find Full Text PDFAnal Chem
August 2024
TUM School of Natural Sciences, Department of Chemistry, Chair of Analytical Chemistry and Water Chemistry, Technical University Munich, Lichtenbergstrasse 4, Garching 85748, Germany.
Rapid and accurate detection of human epidermal growth factor receptor 2 (HER2) is crucial for the early diagnosis and prognosis of breast cancer. In this study, we reported an iron-manganese ion N-doped carbon single-atom catalyst (FeMn-NC/SAC) bimetallic peroxidase mimetic enzyme with abundant active sites etched by HO and further demonstrated unique advantages of single-atom bimetallic nanozymes in generating hydroxyl radicals by density functional theory (DFT) calculations. As a proof of concept, a portable device-dependent electrochemical-photothermal bifunctional immunoassay detection platform was designed to achieve reliable detection of HER2.
View Article and Find Full Text PDFAnal Chim Acta
November 2023
Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, Chongqing, 400044, PR China; Chongqing Engineering and Technology Research Center of Intelligent Rehabilitation and Eldercare, Chongqing City Management College, Chongqing, 401331, PR China. Electronic address:
Efficient catalytic decomposition of HO is accompanied by electron transfer through Fe-N active sites of hemin in the human body. Inspired by this reaction process, the Fe SAs/Co CNs were successfully synthesized by combined Co atomic sites with nitrogen-carbon doped Fe single-atom active sites (SAs). The synergy between transition metals not only reduces agglomeration during synthesis but also improves its own electrical conductivity due to the interaction between Fe and Co that promotes the formation of graphite surface.
View Article and Find Full Text PDFBiosens Bioelectron
August 2024
School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, JiangSu Province, 215009, China. Electronic address:
Nitrite (NO) is present in a variety of foods, but the excessive intake of NO can indirectly lead to carcinogenic, teratogenic, mutagenicity and other risks to the human body. Therefore, the detection of NO is crucial for maintaining human health. In this study, an integrated array sensor for NO detection is developed based on molybdenum single atom material (IMS) using high-resolution electrohydrodynamic (EHD) printing technology.
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