Solid-state cross polarization magic angle spinning (CP/MAS) NMR spectrum was obtained on a Bruker Avance III 400 NMR spectrometer. The infrared (IR) spectra were obtained from a PerkinElmer Spectrum One Fourier transform infrared (FTIR) spectrometer. Thermogravimetric analysis (TGA) was carried out on a Pyris Diamond thermogravimetric/differential thermal analyzer by heating (10 °C min−1) the samples to 900 °C under the nitrogen or air atmosphere. Scanning electron microscopy (SEM) observation was performed using a Hitachi S-4800 microscope without sputter coating. Transmission electron microscopy (TEM) observation was carried out with a FEI Tecnai G2 20S-TWIN microscope at an accelerating voltage of 200 kV. The SEM and TEM samples were prepared by placing a drop of the sonicated suspension of the as-prepared material in ethanol on a silica wafer and lacey support film, respectively, followed by drying under ambient condition.
Tecnai g2 20 s twin microscope
Manufactured by Thermo Fisher Scientific
Sourced in United States
The Tecnai G2 20 S-TWIN microscope is a high-performance transmission electron microscope (TEM) designed for advanced materials research and life sciences applications. It features a 200 kV accelerating voltage and a twin-lens objective system that provides superior imaging capabilities. The microscope is equipped with a LaB6 electron source and delivers exceptional spatial resolution.
Automatically generated - may contain errors
Lab products found in correlation
S 4800 microscope, by Hitachi (1 mentions)
Spectrum one fourier transform, by PerkinElmer (1 mentions)
Uv vis nir lambda750 spectrophotometer, by PerkinElmer (1 mentions)
Supernova x ray diffractometer, by Agilent Technologies (1 mentions)
Uv 2450 spectrophotometer, by Shimadzu (1 mentions)
Fourier transform infrared ftir spectrometer, by PerkinElmer (1 mentions)
Model a300 spectrometer, by Bruker (1 mentions)
Gc 2010, by Shimadzu (1 mentions)
Gold 3 chloride trihydrate solution, by Merck Group (1 mentions)
4 protocols using tecnai g2 20 s twin microscope
1
Multimodal Characterization of Novel Materials
2
Comprehensive Material Characterization Protocol
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The UV–visible absorption spectra of the samples were recorded using Shimadzu UV-2450 spectrophotometer in the wavelength range from 200 to 800 nm. Fourier transform infrared (FTIR) spectra were collected using Agilent K8002AA Carry 660 FTIR instrument. Optical properties were analyzed by UV–vis diffuse reflectance spectroscopy (DRS) using a Perkin Elmer UV/VIS/NIR Lambda 750 spectrophotometer, in which polytetrafluroethylene (PTFE) polymer was employed as internal reflectance standard. Morphology of the samples was characterized using a field-emission scanning electron microscope (FESEM) JFEI Nova Nano SEM-450 and a high resolution transmission electron microscope (HRTEM) FEI Tecnai G2 20 S-twin microscope operating at 200 kV. Energy dispersive X-ray spectroscopy (EDAX) was obtained using the same HRTEM instrument. X-ray diffraction (XRD) measurements were done using the Agilent Supernova X-ray diffractometer using Ni-filtered Cu Kα irradiation (λ = 0.1542 nm) at 45 kV and 40 mA in 2θ ranging from 5 to 80° with a scan rate of 2°·min−1.
3
Comprehensive Characterization of Polymeric Composites
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Solid-state cross-polarization magic angle spinning (CP/MAS) NMR spectra of the polymers and composite were obtained on a Bruker Avance III 400 Nuclear Magnetic Resonance (NMR) spectrometer (Bruker Daltonics Inc., Switzerland). The infrared (IR) spectra were obtained from a Fourier transform infrared (FTIR) spectrometer (PerkinElmer, USA). Transmission Electron Microscope (TEM) observations were obtained using a Tecnai G2 20 S-TWIN microscope (FEI, USA) at the accelerating voltage of 200 kV. Nitrogen sorption–desorption isotherm was measured at 77 K using a Micromeritics 2020M + C system after the sample was degassed at 120 °C overnight and the surface areas were determined by Brunauer–Emmett–Teller(BET) method. (Micromeritics Instrument Corporation, USA). The Pore Size Distribution (PSD) was calculated by Non-local density functional theory (NLDFT). Electron paramagnetic resonance (EPR) measurements were carried out on a Bruker model A300 spectrometer with a 300 W Xenon lamp. All Gas Chromatography (GC) experiments were carried out and recorded with a SHIMADZU GC-2010 with flame ionization detector (FID) detector.
4
Synthesis of 13 nm Gold Nanoparticles
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For the synthesis of gold nanoparticles sized 13 nm according to a protocol of Tkachenko et al., 250 mL of 1 mM gold(III) chloride trihydrate solution (99.9%, Sigma-Aldrich, Germany) were boiled for 10 min before 25 mL of 40 mM trisodium citrate dehydrate solution (99%, Merck, Germany) were added. After boiling of the reaction mixture for 10 min, the suspension was stirred for 15 min at room temperature. Extinction spectra were recorded with a UV-vis/NIR double-beam spectrophotometer (JASCO GmbH, Germany). Transmission electron micrographs of gold particles and of HAuCl 4 after suspension for 3 hours in PBS and culture medium were obtained with a Tecnai G2 20 S-TWIN microscope (FEI, USA) using an acceleration voltage of 200 kV. Ultrapure water (18 MΩ) and phosphate-buffered saline (PBS; Biochrom AG, Germany) were utilized for all experiments.
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