Article
Chemistry, Physical
Mohamad Reza Mardaneh, Mohammad Almasi Kashi, Maryam Ghaffari
Summary: In this study, Ni/Cu multilayered nanowires grown by alternating current pulsed electrodeposition into anodic aluminum oxide template were investigated for their current-flow perpendicular to the layer planes giant magnetoresistance (CPP-GMR). The structure and thickness of layers were analyzed using X-ray diffraction and transmission electron microscopy, showing well-ordered multilayers. Magnetic properties were studied through vibrating sample magnetometer and first-order reversal curve analysis, revealing a maximum CPP-GMR of 2.6% for Ni/Cu multilayered NWs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Biochemical Research Methods
Fanda Meng, Weisong Huo, Jie Lian, Lei Zhang, Xizeng Shi, Aldo Jesorka, Yunhua Gao
Summary: A microfluidic sandwich immunoassay utilizing a dual-GMR sensor array was reported for quantifying heart failure biomarker NT-proBNP in human plasma, with a broad dynamic range and low detection limit. The system demonstrated the ability to accurately analyze samples from patients with different cardiovascular diseases, showing potential for practical use in point-of-care analysis due to its wide concentration range and short measurement time.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Engineering, Electrical & Electronic
Nur Aji Wibowo, Cucun Alep Riyanto, Edi Suharyadi, Harsojo Sabarman
Summary: This article proposes a new tool for monitoring albumin levels in human blood and urine using a giant magnetoresistance (GMR) chip, providing a simple and rapid method with real-time electrical readout. By coupling the chip with a microcontroller, the system is able to display measurement results quickly and easily. The study demonstrates that a combination of GMR chips, Ag-IONPs, and a microcontroller can create a simple system for BSA assay with fast reporting.
IEEE SENSORS JOURNAL
(2023)
Review
Chemistry, Analytical
Shuang Liang, Phanatchakorn Sutham, Kai Wu, Kumar Mallikarjunan, Jian-Ping Wang
Summary: The increasing number of foodborne disease outbreaks has attracted attention from the food industry and regulators. Traditional detection methods are not suitable for rapid detection. Giant magnetoresistance (GMR) biosensors have the potential to revolutionize food surveillance approaches. By utilizing nanotechnology, GMR biosensors can achieve high throughput screening of food samples at a lower cost, and with on-chip microfluidic channels and filtration function, can be fully automatic.
Article
Physics, Applied
Kresna B. Fathoni, Yuya Sakuraba, Yoshio Miura, Taisuke Sasaki, Tomoya Nakatani, Kazuhiro Hono
Summary: The study indicates that in order to enhance the magnetoresistance ratio in CIP-GMR using half-metallic materials, it is crucial to match the resistivity between the ferromagnetic layers and the nonmagnetic layer, in addition to considering the high electronic band matching as a key factor to achieve high MR ratio in CIP-GMR devices.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Immunology
Shagun Gupta, Purva Bhatter, Vipan Kakkar
Summary: This paper presents a highly sensitive and specific technique based on the GMR principle for early stage tuberculosis diagnostics. By using monoclonal antibodies and magnetic nanoparticles, this technology can detect ESAT-6 concentration in the range of pg/mL, with signal strength increasing as the concentration increases.
Article
Engineering, Electrical & Electronic
Van-Dong Doan, Jen-Tzong Jeng, Huu-Thang Nguyen, Chinh-Hieu Dinh, Duy-Vinh Dao, Thi-Trang Pham
Summary: In this work, a rapid M-H measurement system using a giant magnetoresistance sensor is proposed to improve the accuracy of measuring the magnetization curve for soft magnetic materials by eliminating the influence of the environmental static field.
IEEE TRANSACTIONS ON MAGNETICS
(2022)
Article
Chemistry, Multidisciplinary
Diqing Su, Kai Wu, Karthik Srinivasan, Zohreh Nemati, Reza Zamani, Vinit Chugh, Renata Saha, Rhonda Franklin, Jaime Modiano, Bethanie Stadler, Jian-Ping Wang
Summary: Flexible biosensors based on ultra-flexible giant magnetoresistance (GMR) biosensors have been developed for the detection of various biomarkers. These sensors exhibit similar performance to their rigid counterparts and have strong robustness even under constant motion. The developed platform has demonstrated the ability to perform real-time, sensitive, and quantitative detection of canine osteosarcoma (OSCA-8) cells with a low limit of detection.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Engineering, Electrical & Electronic
Lei Guo, Meng-Li Liu, Xiao-Li Tang
Summary: In this work, a modified double-pinned spin valve (SV) structure is proposed to achieve a wide operating range and easy modulation of magnetic unipolar switches. The controllable range exceeds 100 Oe, which is much larger than that exhibited by current commercialized SV structure. The modified double-pinned SV offers a broad application region for GMR magnetic unipolar switches and reveals a new paradigm for the development of the next-generation magnetic sensors.
IEEE TRANSACTIONS ON MAGNETICS
(2023)
Article
Chemistry, Multidisciplinary
Ming Zhang, Zhenhao Tian, Jiayue Wang, Xiangge Tian, Chao Wang, Jingnan Cui, Xiaokui Huo, Lei Feng, Zhenlong Yu, Xiaochi Ma
Summary: Leucine aminopeptidase (LAP) is a key hydrolytic enzyme for specific peptides and proteins, and is known as a crucial virulence factor for pathogenic infections. The development of a new fluorescent probe DDBL allows real-time detection of LAP expression in bacteria from feces, and is also used for high-throughput screening to identify inhibitors.
Article
Chemistry, Multidisciplinary
Fanda Meng, Lei Zhang, Jie Lian, Weisong Huo, Xizeng Shi, Yunhua Gao
Summary: In this study, we developed a tandem giant magnetoresistance (GMR) assay that enables the quantification of multiple infection biomarkers in a single test. This assay has a wide dynamic range, small sample volume requirement, and short measurement time, making it a promising candidate for point-of-care analysis.
FRONTIERS IN CHEMISTRY
(2022)
Article
Engineering, Electrical & Electronic
Saurabh Kharwar, Sangeeta Singh, Neeraj K. Jaiswal
Summary: This study investigates the spin-polarized structural and electronic properties of fluorine (F) passivated zigzag boron nitride nanoribbons (ZBNNRs) at the selective boron (B) and nitrogen (N) edges. It predicts that F-passivation can lead to half-metallic property in ZBNNRs and that F-passivated ZBNNRs exhibit structural stability and good transport properties. The devices based on F-passivated ZBNNRs show perfect spin-filtering characteristics with high spin-filtering efficiency, indicating their potential for nanoscale spintronic applications.
IEEE TRANSACTIONS ON NANOTECHNOLOGY
(2022)
Article
Food Science & Technology
Shogo Yamaki, Yuji Kawai, Koji Yamazaki
Summary: Bacterial cell filamentation occurs in response to sublethal stress in Listeria monocytogenes, leading to potential underestimation of viable cell counting. Filamentous cells can revert to normal morphology and show faster growth in limited nutrient media. The thermal resistance of filamentous cells increases, indicating higher stress tolerance and potential risk for rapid increase in colony-forming units after stress release.
Article
Engineering, Electrical & Electronic
Saurabh Kharwar, Sangeeta Singh, Neeraj K. Jaiswal
Summary: The structural stability, spin-polarized electronic and transport properties of edge-hydrogenated zigzag boron nitride nanoribbons were investigated using density functional theory combined with a non-equilibrium Green's function approach. The observed high spin giant magnetoresistance and rectification behavior in these nanoribbons have potential applications for designing future spintronic nanodevices.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2021)
Article
Chemistry, Analytical
Manh Vu Xuan, Phu Nguyen Dang, Loc Do Quang, Hieu Nguyen Minh, Trinh Chu Duc, Tung Bui Thanh
Summary: A highly sensitive magnetic measurement system using a modified commercial giant magnetometer resistance (GMR) sensor was successfully developed in this study. The system allows for quantitative determination of the concentrations of superparamagnetic nanoparticles in continuous flow, making it valuable for the separation and quantification of biomarkers in diagnostics.
INSTRUMENTATION SCIENCE & TECHNOLOGY
(2023)