Here, selective amplification of spoof localized surface plasmons (LSPs) has been demonstrated, where two coupling stubs gathering energies from the spoof LSPs resonator are designed on the back of the corrugated metal-insulator-metal ring resonator. The quadrupole mode is selected and amplified through the coupling stubs and the incorporated amplifier chip, and the measured transmission intensity has been increased from $ - {6.46}\;{\rm dB}$-6.46dB to 10.74 dB by adjusting the bias voltage. The amplification mechanism is fully investigated by using the circuit simulation and the full-wave simulation. The numerical simulations and experimental measurement agree well with each other. The active amplified resonator can be widely used in chemical and biological sensing in microwave frequency.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/AO.58.009797 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
HIV Replication Under High-Level Cabotegravir Is Associated with the Appearance of 3'-PPT Mutations, Circular DNA Transcription and Recombination.
Viruses
November 2024
Laboratory Branch, Division of HIV Prevention, National Center for HIV, Viral Hepatitis, STD and TB Prevention, Centers for Disease Control and Prevention, Atlanta, GA 30329, USA.
The HIV integrase inhibitor, dolutegravir (DTG), in the absence of eliciting integrase (int) resistance, has been reported to select mutations in the virus 3'-polypurine tract (3'-PPT) adjacent to the 3'-LTR U3. An analog of DTG, cabotegravir (CAB), has a high genetic barrier to drug resistance and is used in formulations for treatment and long-acting pre-exposure prophylaxis. We examined whether mutations observed for DTG would emerge in vitro with CAB.
View Article and Find Full Text PDFDevelopment of a Multiplex RT-PCR Detection for Six Viruses Infecting Strawberry.
Viruses
November 2024
Institute of Industrial Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China.
Strawberry viruses are significant pathogenic agents in strawberry. The development and application of efficient virus detection technology can effectively reduce the economic losses incurred by virus diseases for strawberry cultivators. In order to rapidly identify strawberry virus species and prevent the spread of virus disease, a multiplex reverse transcription polymerase chain reaction system was established for the simultaneous detection and identification of strawberry mild yellow edge virus (SMYEV), strawberry vein banding virus (SVBV), strawberry mottle virus (SMoV), strawberry polerovirus 1 (SPV-1), strawberry pallidosis-associated virus (SPaV), and strawberry crinivirus 4 (SCrV-4).
View Article and Find Full Text PDFDetection of zearalenone by electrochemical aptasensor based on enzyme-assisted target recycling and DNAzyme release strategy.
Talanta
January 2025
College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China; Hebei Provincial Key Laboratory of Analysis and Control for Zoonoses Microbial, Baoding, 071001, China; College of Life Sciences, Hebei Agricultural University, Baoding, 071001, China. Electronic address:
Zearalenone has a high level of detection and exceedance in cereals and by-products. Herein, an electrochemical aptasensor for ZEN detection was proposed. The selected aptamer, which has a high affinity for ZEN, serves as a molecular recognition element and effectively avoids interference from other toxins.
View Article and Find Full Text PDFCRISPR/Cas14a integrated with DNA walker based on magnetic self-assembly for human papillomavirus type 16 oncoprotein E7 ultrasensitive detection.
Biosens Bioelectron
January 2025
School of Pharmacy, Jiangsu University, 212013, Zhenjiang, PR China. Electronic address:
To enhance the biomarker diagnostics sensitivity and selectivity of human papillomavirus type 16 oncoprotein E7 (HPV16 E7) in serum, a label/enzyme-free electrochemical detection platform was developed. This platform featured a type of "Super-turn-off" nanobiosensor monitored through differential pulse voltammetry (DPV). It integrated the magnetic self-assembly property of the α-FeO/FeO@Au/Sub/BSA signal transport nano-medium with the high specificity of CRISPR/Cas14a and the amplification capability of the bipedal walker (DNA walker composed of two ssDNA strands), resulting in the enhanced specificity and anti-interference performance while remaining stable at 4 °C for over 30 days.
View Article and Find Full Text PDFDNAzyme-mediated isothermal catalytic hairpin assembly for rapid and enzyme-free amplified detection of lead(Ⅱ) ion.
J Hazard Mater
January 2025
Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai Ocean University, Shanghai 201306, China; Laboratory of Quality and Safety Risk Assessment for Aquatic Product on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China; Shanghai Ocean University, Shanghai 201306, China. Electronic address:
The detection of heavy metal ions, particularly lead (Pb²⁺), in environmental samples is crucial for public health and safety. Current nucleic acid signal amplification methods for Pb²⁺ detection often rely on biological enzymes and are limited in applicability due to high costs, prolonged detection times, and nonspecific adsorption. In this study, we introduce an enzyme-free, DNAzyme-mediated isothermal catalytic hairpin assembly (DMICHA) assay, which combines a DNAzyme-based Pb²⁺ recognition module with a signal amplification process utilizing isothermal catalytic hairpin assembly (CHA).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!