Search Results - "biosensor"

The capability of an ultrahigh <italic>Q</italic> polymer microring resonator as a biosensing system is systematically investigated. By optimizing the device design and fabrication process, the device operates in the slightly under-coupled regime with a record intrinsic <italic>Q&l...

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Highly sensitive triple-band metamaterial-based biosensor for different cancer cells detection is suggested and numerically analyzed. The reported sensor has a polyimide dielectric layer which is sandwiched between gold bottom plane and top metallic patches. The analyte sample covers the metallic pa...

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In the conventional surface plasmon resonance biosensor, the sensitivity using angular interrogation is low. Graphene/MoS₂ has been attached on the metal surface to improve the sensitivity; however, the ability to improve sensitivity is limited. Here, by sandwiching the MoS<...

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The continuous advancement of nuclear science, associated with biotechnology, has provided innovative interdisciplinary approaches to overcome challenges related to the detection of ionizing radiation. This study investigates the use of antimicrobial peptides (AMPs), present in the total extract of...

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This study aims to develop a robust and reproducible method for fabricating efficient ultrathin antifouling coatings on gold surfaces by leveraging hydroxylation-based surface modifications. An ultrathin antifouling coating of a monoethylene glycol silane derivative, known to reduce fouling by at le...

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Biosensors have emerged as highly sensitive, rapid, and specific tools for detecting food safety hazards, particularly in perishable products, such as fish, meat, and poultry. These products are susceptible to microbial contamination and often contain additives intended to improve shelf life and fla...

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Sepsis remains a global health emergency, demanding timely and accurate diagnostics to reduce morbidity and mortality. This review critically assesses the recent progress (2020–2025) in the development of electrochemical aptamer-based biosensors for sepsis detection. These biosensors combine aptamer...

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Advancements in biosensing technologies have introduced opportunities for non-invasive, real-time monitoring of salivary biomarkers, enabling progress in fields ranging from personalized medicine to public health. Identifying and prioritizing the most critical analytes to measure in saliva is essent...

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A silicon-on-insulator (SOI) device is an important integrated circuit technology containing an insulating material. In this paper, an SOI wafer consisting of n-type silicon grown on the surface of a SiO₂ layer was adopted. Porous silicon on the SOI surface, prepared by an ele...

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Biochar, a carbonaceous material derived from biomass, has garnered significant attention for its biomedical applications due to its unique physicochemical properties. Recent advances in functionalized and composite biochar materials have enabled their use in antibacterial and anticancer treatments,...

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We propose a directional coupler (DC) biosensor to detect the concentration of glucose based on the thermooptic detection mechanism in silica waveguide. We discuss the design principles using the coupled-mode theory of DC and deduce the conditions for a valid biosensor model. The coupling length, th...

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Aptamers have high specificity and affinity to target analytes, along with good stability and low cost, making them widely used in the detection of target substances, especially in the increasingly popular aptamer-based electrochemical biosensors. Aptamer-based electrochemical biosensors are compose...

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Improved rapid and sensitive biosensors for detecting foodborne pathogens in the environment are urgently needed to curtail disease outbreaks. This study aims to develop and optimize a fast and sensitive biosensor for detecting Escherichia coli O157 using an advanced Förster Resonance Energy Transfe...

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Hepatitis B virus (HBV) infection is one of the major health issues in the world presently with high tendency of leading to hepatocarcinoma, cirrhosis and liver cancer, especially if not properly managed. It has been estimated that there are about 2 billion people with a serological profile of HBV i...

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Hepatitis B virus (HBV) infection is one of the major health issues in the world presently with high tendency of leading to hepatocarcinoma, cirrhosis, and liver cancer, especially if not properly managed. It has been estimated that there are about 2 billion people with a serological profile of HBV...

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The mechanism of biochemical compounds diagnostics using matrices based on optical resonance in closed dielectric microcavities is discuss in this paper. A method for sensor fabrication, interrogation of the optical elements as well as approach for spectral data processing are represented. Experimen...

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Aptamers hold great potential for point-of-care diagnostics (POC), but the complexity of sensor architectures and poor sensitivities in detecting small molecules remain challenging. In this study, we present a simple but effective approach to enhance the sensitivity of the electrochemical ap-tamer-b...

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A tunable high-sensitivity gold-film covered photonic crystal fiber refractive index biosensor based on surface plasmon resonance is proposed. The finite element method is used to analyze and discuss the sensing performance of the biosensor to the analyte. The radio interference (RI) of the analyte...

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A novel long-range surface plasmon with graphene is proposed to enhance the sensitivity and detection accuracy (DA) of the biosensor. Compared with the conventional long-range surface plasmon resonance (LRSPR) structure with Au, the coating of the metal surface with graphene is employed to increase...

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Betalains are hydrophilic natural pigments commonly found in plants of the <i>Caryophyllales</i> order, as well as in specific species and genera of fungi, such as <i>Hygrocybe</i>, <i>Hygrophorus</i>, and <i>Amanita muscaria</i>. Betalains are sorted...

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