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5 days ago · Here we demonstrate atomic-scale terahertz time-domain spectroscopy by combining waveform sampling with terahertz scanning tunnelling spectroscopy to study a single gallium arsenide surface...
4 days ago · Transient absorption (TA) spectroscopy measurements were conducted under 600-nm excitation to investigate the photophysical details of the r-CQDs and the nir-CQDs in DMSO. As illustrated in Fig. 4A , the r-CQDs exhibited a photobleaching (PB) signal around 620 nm, corresponding to the surface-related core state, and a corresponding photoinduced absorption at 720 nm (fig. S19).
1 day ago · The latter include acute toxicity of a single dose, boron uptake in various organs, and in tumor-bearing small animals by means of direct or inductively coupled plasma atomic absorption spectroscopy and cellular localization within tumor cells using techniques such as secondary ion mass spectrometry [82, 83] and alpha track autoradiography . In the case of boron delivery agents, these should be intrinsically non-toxic, and most importantly, dose escalation studies should be carried out to ...
1 day ago · The major absorption bands of PEG and GNRs also appeared, confirming that both polymers (PEI/PEG) were coated onto the GNR surface. DFA IV showed a characteristic broad peak at 3401 cm –1 corresponding to O–H, and also exhibited peaks at 2928, 1649, 1029, and 926 cm –1 , assigned to C–H stretching, H–O–H scissors, C–OH stretching, and C–O–C stretching vibrations, respectively.
1 day ago · absorption spectroscopy (TAS) approach, which has recently been realized with attosecond pump and probe pulses in the x-ray regime [28]. Generally, in TAS a broadband pulsed light source is employed to probe the dynamics induced by pump pulses at various time-delays, and spectroscopic information is extracted
3 days ago · Scope: The ATOMIC SPECTROSCOPY is a peer-reviewed international journal started in 1962 by Dr. Walter Slavin and now is published by Atomic Spectroscopy Press Limited (ASPL), Hongkong, P.R. China.
1 day ago · X-ray adsorption fine spectroscopy (XAFS) analysis was carried out to further analyze the local coordination environment and electronic structure at the atomic level. The Pt L3-edge X-ray absorption near-edge structure (XANES) spectra of Pt2Fe/FeN4CCl with Pt foil and PtO2 as references are
