Spectroscopy is an analytical technique that measures the interaction between electromagnetic radiation (or other energetic probes, such as electrons or ions) and matter as a function of wavelength, frequency, or energy to obtain information about a system’s composition, structure, and dynamics. By monitoring absorption, emission, scattering, or reflection, spectroscopy reveals quantized energy levels associated with electronic, vibrational, and rotational states. Variants such as UV–Vis, infrared, Raman, nuclear magnetic resonance, and X-ray spectroscopy exploit distinct interaction mechanisms and selection rules, enabling determination of molecular identity, chemical environment, bonding characteristics, and in some cases spatial or temporal evolution of materials and biochemical systems.
Laser-based absorption spectroscopy is an important method for determining the concentration of gas components in a sample. Modern devices are highly specialized for detecting very specific gases, such as trace gases in the ...
Optics & Photonics
Jan 9, 2024
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121
Sensors are essential tools for detecting and analyzing trace molecules in a variety of fields, including environmental monitoring, food safety, and public health. However, developing sensors with high enough sensitivity ...
Bio & Medicine
Jan 8, 2024
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80
A research team led by The Hong Kong University of Science and Technology (HKUST) has developed an optical plasmonic tweezer-controlled Surface-Enhanced Raman Spectroscopy (SERS) platform that utilizes on-and-off control ...
Bio & Medicine
Jan 4, 2024
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74
A new study conducted by pre-Ph.D. researcher Pablo S. Valera demonstrates the potential of surface-enhanced Raman spectroscopy (SERS) to explore metabolites secreted by cancer cells in cancer research.
Bio & Medicine
Dec 18, 2023
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102
Recently, a research team led by Prof. Yang Liangbao from the Hefei Institutes of Physical Science (HFIPS) of the Chinese Academy of Sciences (CAS) proposed an innovative strategy for assembling small nanoparticles in a three-phase ...
Nanomaterials
Dec 11, 2023
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70
A research team led by Prof. Yang Liangbao from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has used surface-enhanced Raman spectroscopy (SERS) to accurately monitor the diffusion behavior ...
Nanophysics
Oct 11, 2023
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97
The research group of Yang Liangbao at the Institute of Health and Medical Technology, Hefei Institutes of Physical Science (HFIPS), Chinese Academy of Science (CAS) has recently developed a surface-enhanced Raman spectroscopy ...
Nanomaterials
Jul 28, 2023
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149
Two-dimensional (2D) material flakes consist of single to few atomic layers, granting them extraordinary quantum properties, which are not observed in everyday materials. As a result, these materials hold immense potential ...
Nanomaterials
Jun 22, 2023
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139
Surface-enhanced Raman scattering (or spectroscopy), known as SERS, is an advanced analysis method that extends the range of Raman applications to trace analysis, such as part-per-million-level detection of a pollutant in ...
Nanomaterials
Mar 28, 2023
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142
A research team led by Dr. Ho Sang Jung of the Surface & Nano Materials Division of the Korea Institute of Materials Science (KIMS), a research institute under the Ministry of Science and ICT, conducted joint research with ...
Bio & Medicine
Feb 14, 2023
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147
