Colloids and Surfaces B Biointerfaces, Journal Year: 2024, Volume and Issue: 247, P. 114410 - 114410
Published: Nov. 26, 2024
Language: Английский
International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(14), P. 7675 - 7675
Published: July 12, 2024
Sensitive detection and efficient inactivation of pathogenic bacteria are crucial for halting the spread reproduction foodborne bacteria. Herein, a novel Apt-modified PDMS-ZnO/Ag multifunctional biosensor has been developed high-sensitivity surface-enhanced Raman scattering (SERS) along with photocatalytic sterilization towards Salmonella typhimurium (S. typhimurium). The distribution electric field in different Ag sputtering times was analyzed using finite-difference time-domain (FDTD) algorithm. Due to combined effect electromagnetic enhancement chemical enhancement, exhibited outstanding SERS sensitivity. limit (LOD) 4-MBA on optimal substrate (PZA-40) could be as little 10−9 M. After PZA-40 modified aptamer, LOD PZA-40-Apt detecting S. only 10 cfu/mL. Additionally, effectively inactivate under visible light irradiation within min, bacterial lethality rate (Lb) up 97%. In particular, identify food samples addition having minimal cytotoxicity powerful biocompatibility. This work provides nanoplatform broad prospects selective
Language: Английский
Citations
6
Analytica Chimica Acta, Journal Year: 2025, Volume and Issue: 1345, P. 343734 - 343734
Published: Feb. 1, 2025
Language: Английский
Citations
0
Biomedical Optics Express, Journal Year: 2025, Volume and Issue: 16(3), P. 949 - 949
Published: Feb. 5, 2025
Pathogenic microorganisms responsible for infectious diseases pose a significant global threat to human health. Existing detection methods, such as qPCR and ELISA, fail simultaneously meet the requirements high sensitivity, specificity, rapid detection. This study presents an innovative approach rapid, specific, highly sensitive of pathogenic microorganisms, particularly Escherichia coli O157:H7 (E. O157:H7) varicella-zoster virus (VZV), by combining recombinase polymerase amplification (RPA) with terahertz time-domain spectroscopy (THz-TDS). The qualitative quantitative method was developed evaluated. stable efficient RPA reaction systems were established specifically amplify key conserved genes these pathogens. Then products purified, enriched MBs. absorbance spectra obtained using THz-TDS technology. linear range RPA-THz detecting E. 0.55 5.5 × 104 pg/mL, while VZV, it 0.75 7.5 103 pg/mL. limit (LOD) bacteria viruses 0.226 pg/mL 0.528 respectively, demonstrating better sensitivity than (550 750 respectively). In addition, whole process completed in about 35 minutes. Compared traditional pathogen techniques, primary advantage exhibited accuracy, good reproducibility, short times, enabling non-ionizing, label-free analysis specificity microorganisms. provides theoretical foundation practical demonstration fast precise It establishes crucial research basis further development sensors, advancing technological progress field food safety, medical diagnostics, environmental monitoring, public
Language: Английский
Citations
0
Advanced Science, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 28, 2025
Abstract The strong‐coupling microcavity between excitons and photons facilitates efficient modulation control of light, as well precise manipulation photon propagation properties. This phenomenon demonstrates significant potential for diverse applications in quantum information processing, optical sensing, nonlinear optics. anapole, a specific type captured state, allows effective over the electromagnetic field through appropriate distributions current charge, generating substantial localized effects within field. mechanism provides novel avenue investigating dynamics hybrid metamaterial sensing. Here, rate energy exchange is greater than their individual dissipation rates, resulting Rabi splitting phenomena pronounced anti‐crossing behavior, ultimately forming an “ultrasensitive photoreactive region” suitable sensing applications. Furthermore, nonlocal metamaterial, characterized by strong light‐matter coupling, can be integrated with functionalized colloidal gold monoclonal tag antibodies to enable rapid multidimensional detection identification total prostate‐specific antigen (tPSA) complex environmental solutions. proposed resonance plays crucial role evolution metamaterials, enhancing applicability molecular selective recognition fundamental interaction phenomena.
Language: Английский
Citations
0
Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)
Published: April 11, 2025
Abstract Terahertz (THz) devices, owing to their distinctive optical properties, have achieved myriad applications in diverse domains including wireless communication, medical imaging therapy, hazardous substance detection, and environmental governance. Concurrently, mitigate the impact of electronic waste generated by traditional materials, sustainable materials-based THz functional devices are being explored for further research taking advantages eco-friendliness, cost-effective, enhanced safety, robust biodegradability biocompatibility. This review focuses on origins biological structures materials as well succinctly elucidates latest device fabrication, communication macromolecule detection sensors, environment monitoring biomedical therapeutic devices. We highlight recent protein-based monitoring. Besides, this explores developmental prospects integrating with presenting potential future.
Language: Английский
Citations
0
Advanced Materials Technologies, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 14, 2024
Abstract Metamaterials (MMs), distinguished by their unique electromagnetic properties, offer significant advantages in the realm of terahertz (THz) biosensing and early disease diagnosis. The intense electric field confined within subwavelength volumes metallic MMs enhances interaction between light analytes. Q‐factor, sensitivity figure merit (FOM) are three critical direct parameters for quantitative evaluation sensor performance. Researchers pursuing enhancement these optimal design structures dimensions as well proper choice materials. Recently, dielectric perturbation theory is quantitatively calculated successfully utilized optimization THz sensors. Guided this theory, review focuses on principle sensors, various study how to improve fundamental specific application including functionalization process, fabrication Based methods results, future development sensors finally presented a perspective view.
Language: Английский
Citations
3
Colloids and Surfaces B Biointerfaces, Journal Year: 2024, Volume and Issue: 247, P. 114410 - 114410
Published: Nov. 26, 2024
Language: Английский
Citations
2