World Journal of Microbiology and Biotechnology, Journal Year: 2024, Volume and Issue: 40(7)
Published: May 24, 2024
Language: Английский
TrAC Trends in Analytical Chemistry, Journal Year: 2024, Volume and Issue: 175, P. 117715 - 117715
Published: April 16, 2024
To comprehend biological processes for healthcare, environmental, food, and security applications, establishing sensitive, reliable, rapid techniques detecting biomolecular substances is essential. However, conventional labeling methods suffer from reliability reproducibility issues because they influence the experimental outcomes. Therefore, a label-free sensing technique required to overcome these limitations. From this perspective, terahertz have attracted significant attention owing their unique characteristics of low photon energy ability probe overall dielectric responses low-frequency vibrational modes intermolecular interactions. In review, we first present distinctive waves molecules samples through comparison with spectroscopy. Then, challenges opportunities in latest technologies metasurface-based detection are introduced, spanning strategies enhanced absorption cross-sections emerging frontiers exploring chirality strongly coupled polaritons.
Language: Английский
Citations
8
Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: Aug. 7, 2024
Abstract Accessing the terahertz (THz) spectral domain through surface-enhanced Raman spectroscopy (SERS) is challenging and opens up study of low-frequency molecular electronic excitations. Compared to direct THz probing heterogenous ensembles, extreme plasmonic confinement visible light deep sub-wavelength scales allows hundreds or even single molecules. We show that self-assembled monolayers a set simple aromatic thiols confined inside single-particle nanocavities can be distinguished by their low-wavenumber peaks below 200 cm −1 , after removal bosonic inelastic contribution an exponential background from spectrum. Developing environment-dependent density-functional-theory simulations metal-molecule configuration enables assignment classification vibrations as well identification intermolecular coupling effects influence gold surface configuration. Furthermore, we dramatically narrower SERS spectra individual molecules at picocavities, which indicates possibility intrinsic vibrational properties beyond inhomogeneous broadening, further supporting key role local environment.
Language: Английский
Citations
5
The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 877, P. 162882 - 162882
Published: March 17, 2023
Language: Английский
Citations
12
Frontiers in Bioengineering and Biotechnology, Journal Year: 2023, Volume and Issue: 11
Published: April 26, 2023
Introduction: Terahertz waves lie within the energy range of hydrogen bonding and van der Waals forces. They can couple directly with proteins to excite non-linear resonance effects in proteins, thus affect structure neurons. However, it remains unclear which terahertz radiation protocols modulate Furthermore, guidelines methods for selecting parameters are lacking. Methods: In this study, propagation thermal 0.3-3 THz wave interactions neurons were modelled, field strength temperature variations used as evaluation criteria. On basis, we experimentally investigated cumulative from on neuron structure. Results: The results show that frequency power main factors influencing neurons, there is a positive correlation between them. Appropriate reductions mitigate rise also be form pulsed waves, limiting duration single millisecond level. Short bursts used. Broadband trace (0.1-2 THz, maximum radiated 100 μW) short (3 min/day, 3 days) does not cause neuronal death. This protocol promote growth cytosomes protrusions. Discussion: paper provides parameter selection study neurobiological effects. Additionally, verifies short-duration
Language: Английский
Citations
11
Brain Sciences, Journal Year: 2024, Volume and Issue: 14(3), P. 279 - 279
Published: March 14, 2024
Terahertz radiation falls within the spectrum of hydrogen bonding, molecular rotation, and vibration, as well van der Waals forces, indicating that many biological macromolecules exhibit a strong absorption resonance in this frequency band. Research has shown terahertz specific frequencies energies can mediate changes cellular morphology function by exciting nonlinear effects proteins. However, current studies have mainly focused on level lack systematic multiple levels. Moreover, mechanism law interaction between neurons are still unclear. Therefore, paper analyzes mechanisms which modulates nervous system, it discusses methods neurons. In addition, reviews laws radiation’s influence neuronal kinetic properties them detail terms frequency, energy, time. future, safety system should be considered first to construct criterion modulation, spatial resolution improved. improvement modulation levels is key applying waves neuroscience. This provide platform for researchers understand terahertz–nervous interaction, its status, future research directions.
Language: Английский
Citations
4
Optics Express, Journal Year: 2022, Volume and Issue: 30(11), P. 19005 - 19005
Published: April 12, 2022
Motivated by the increasing demand to monitor air-quality, our study proved feasibility of a new compact and portable experimental approach based on Terahertz (THz) continuous wave high resolution spectroscopy, detect presence air's contaminants as greenhouse gases (GHG) volatile organic compounds (VOCs). In this specific work, we first characterized, determining their molar absorption coefficient in spectral region (0.06-1.2) THz, pure optical response vapor five VOCs: methanol, ethanol, isopropanol, 1-butanol 2-butanol. particular, 2-butanol are characterized for time literature at THz frequencies. Then studied mixtures achieved with ambient air ethanol. The results show that it is possible differentiation single components describing terms linear combination absorption. This proof concept apparatus set-up paves way use Continuous spectroscopy environmental tracking pollutants.
Language: Английский
Citations
18
Brain Sciences, Journal Year: 2023, Volume and Issue: 13(4), P. 686 - 686
Published: April 19, 2023
Terahertz waves lie within the rotation and oscillation energy levels of biomolecules, can directly couple with biomolecules to excite nonlinear resonance effects, thus causing conformational or configuration changes in biomolecules. Based on this mechanism, we investigated effect pattern 0.138 THz radiation dynamic growth neurons synaptic transmission efficiency, while explaining phenomenon at a more microscopic level. We found that cumulative not only did cause neuronal death, but it promoted cytosol protrusions. Additionally, there was terahertz promotion growth. Furthermore, electrophysiological terms, improved efficiency hippocampal CA1 region, slow continuous process. This is consistent morphological results. continue for than 10 min after ends, these phenomena were associated an increase dendritic spine density. In summary, our study shows modulate transmission. Therefore, may become novel neuromodulation technique modulating neuron structure function.
Language: Английский
Citations
10
Journal of Advances in Physical Chemistry, Journal Year: 2025, Volume and Issue: 14(01), P. 34 - 47
Published: Jan. 1, 2025
Language: Английский
Citations
0
Next Materials, Journal Year: 2025, Volume and Issue: 8, P. 100585 - 100585
Published: March 21, 2025
Language: Английский
Citations
0
Brain Research Bulletin, Journal Year: 2025, Volume and Issue: unknown, P. 111373 - 111373
Published: May 1, 2025
Language: Английский
Citations
0