The gelation time and the degradation behavior of the hydrogel under different acidic conditions were detected by an MCR 302 rheometer. Transmission electron microscopy (TEM) images were taken on a G2T12 transmission electron microscope (FEI, USA). The morphology of the hydrogel was recorded on a Q25 scanning electron microscope (FEI, USA). The hydrodynamic size and zeta potentials were measured by dynamic light scattering (DLS) (380 ZLS, NICOMP, USA). The chemical compositions were determined by X-ray photoelectron spectroscopy (XPS) (PHI Quantera SXM). All XPS spectra were calibrated by the C 1 s peak at 284.6 eV. Infrared absorption spectrum (IR) was recorded on a FTIR 8400 spectrophotometer. UV-Vis and fluorescence spectra were recorded on Hitachi U-3010 and F-4600 spectrophotometer, respectively.
G2t12 transmission electron microscope
Manufactured by Thermo Fisher Scientific
Sourced in United States
The G2T12 is a transmission electron microscope (TEM) manufactured by Thermo Fisher Scientific. It is designed to provide high-resolution imaging and analysis of microscopic samples. The core function of the G2T12 TEM is to transmit a beam of electrons through a thin specimen, creating an enlarged image that can be observed and analyzed.
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2 protocols using g2t12 transmission electron microscope
1
Characterization of Hydrogel Properties
2
Optical and Structural Characterization of GQDs@hMSN
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Absorption and fluorescence spectra were recorded in Hitachi U-3010 and F-4600 spectrophotometers, respectively. Transmission electron microscopy (TEM) images were taken on a G2T12 transmission electron microscope (FEI, USA). The hydrodynamic size and surface potentials were determined by dynamic light scattering (DLS) (380 ZLS, NICOMP, USA), at the concentration of 0.05 mg mL−1 (based on GQDs@hMSN).
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