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Talos f200x instrument

Manufactured by Thermo Fisher Scientific
Sourced in United States

The TALOS F200x is a high-performance transmission electron microscope (TEM) designed for advanced materials research and characterization. It features a field emission gun (FEG) electron source, providing high-brightness electron beam for high-resolution imaging and analysis. The instrument is equipped with advanced optics and detectors to enable comprehensive structural and elemental analysis of a wide range of materials at the nanoscale.

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6 protocols using talos f200x instrument

1

Nanoparticle Characterization via HRTEM

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Distribution, morphology, and size of the nanoparticles were studied by high-resolution transmission electron microscopy (HRTEM) using a TALOS F200x instrument, Thermo Scientific, Waltham, MA, USA. Samples were suspended in ethanol and treated by ultrasound for 15 min. A drop of the suspension was deposited on a quantifoil holey carbon film supported by a copper grid and dried before analysis. Image J software was used to calculate the average particle size distribution.
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2

Synthesis and Characterization of Silver Nanoparticles

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The reduction of silver ions into silver particles was monitored by UV-visible spectroscopy (Evolution 60, Thermo Scientific) at a wavelength of 300–800 nm. A dynamic light scattering spectroscopy (DLS) analysis was conducted to measure the particle size of the prepared AgNPs in an aqueous solution (hydrodynamic diameter) and to determine the polydispersity index (PDI) and zeta potential (surface charge) using a Zetasizer Nano-S (Malvern® instruments, UK) at 25°C. In order to avoid multiple scattering effects, the AgNPs were diluted 20- to 200-folds with deionized water. All measurements were undertaken in triplicate (n = 3) and results were expressed as mean ± SD. Fourier-transform infrared (FTIR) spectra obtained using an FTIR spectrophotometer (Perkin Elmer Spectrum FTIR Spectrometer, USA) at wavenumbers between 450 and 4000 cm−1 were conducted to determine the role of the phytoconstituents in NP synthesis. The AgNPs size was determined using transmission electron microscopy (TEM). High-resolution transmission electron microscopy (HR-TEM) was performed by using a TALOS F200x instrument (Thermo Fisher Scientific, Waltham, MA, USA). TEM analysis was performed at 200 kV and 5.5 µA. ImageJ software (ImageJ 1.48v) was used to estimate the average particle size distribution.
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3

Comprehensive Materials Characterization Protocol

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X-ray diffraction (XRD) spectroscopy was carried out using a D8-Advance X-ray diffractometer (Bruker Corp., Billerica, MA, USA); N2-physisorption was conducted on an Autosorb-1 instrument (Quantachrome Instruments Corp., Boynton Beach, FL, USA), at liquid-N2 temperature; scanning electron microscopy (SEM) was carried out on a JSM 6700 F instrument (JEOL Ltd., Tokyo, Japan), operating at an accelerating voltage of 10 kV; transmission electron microscopy (TEM) was conducted on a TALOS F200 X instrument (Thermo Fisher Scientific Inc., Waltham, MA, USA), operating at an accelerating voltage of 200 kV; Fourier transform-infrared spectroscopy (FT-IR) was recorded on a Varian 3100 spectrometer (Varian, Inc., Palo Alto, CA, USA), equipped with a DTGS detector; Raman spectroscopy was recorded on an InviaTM (Renishaw Co., Inc., Gloucestershire, UK), using a 785 nm laser; and X-ray photoelectron spectroscopy (XPS) was carried out on a Thermo Fisher Scientific K-Alpha (Thermo Fisher Scientific Inc.), using an Al-Kα source.
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4

Hyaluronic Acid Nanoparticle Synthesis

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Hyaluronic acid (HA, molecular weight 40 kDa, HA40K-5) was purchased from Lifecore, USA. Methacrylic anhydride (276685), N-hydroxysuccinimide (NHS, 130672), sodium hydroxide (795429), adenosine (A4036), and mineral oil (M5904) were obtained from Millipore Sigma, USA. 1-Ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC.HCl, D1601), sodium alendronate trihydrate (J61397), and 2-chloroethylamine hydrochloride (2-CEA, A14455) were purchased from Alfa Aesar, USA. Cyanine 7.0 amine (550C0) was purchased from Lumiprobe. Dialysis bags (Molecular weight cut off, MWCO of 2.0 and 3.5 kDa) were obtained from Spectrum, USA. ABIL EM90 surfactant (420095-L-151) was obtained from Universal PreservA Chem Inc., Germany. Hexane, acetone, ethanol, and dimethyl sulfoxide (DMSO) were purchased from Millipore-Sigma, USA; the solvents were of ACS or spectroscopic grade. Genesys 10S UV-vis spectrometer was used to record the absorbance spectra. FTIR and NMR spectra were recorded using Thermo Electron Nicolet 8700 FTIR spectrometer and FFSC 500 MHz Agilent/Varian Inova spectrometer, respectively. The Thermo Fisher Scientific Talos F200X instrument was used to obtain the transmission electron microscopy (TEM) images.
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5

Advanced Catalyst Characterization Techniques

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Scanning electron microscopy (SEM) images of the catalysts were obtained using a Nova Nano SEM 200 instrument (FEI, Hillsboro, Oregon, USA). High-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) images of the catalysts were obtained using a Talos F200X instrument (FEI, Hillsboro, Oregon, USA). Both analyses were performed at the Korea Institute of Science and Technology (KIST) Advanced Analysis Center (Seoul, Korea). XRD results were collected using a Shimadzu XRD-6000 device equipped with a CuKα1 (λ = 0.15406 nm) source.
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6

Comprehensive Structural and Optoelectronic Characterization

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XRD patterns were acquired on the D8 ADVANCE diffractometer (Bruker Co., Ltd). Raman spectra were acquired on the DXR 2DXR2 instrument (Thermo Fisher Scientific, Co., Ltd). XPS spectra were measured with the PHI 5000 Versa Probe III instrument (ULVAC-PHI Co., Ltd). In situ XPS spectra were collected in dark or under visible-light irradiation for 20 min on the Thermo ESCALAB 250Xi instrument with an Al Kα radiation source. In situ solid-state EPR spectra were measured on the ELEXSYS II EPR instrument with 20 mg photocatalyst in dark or under 420 nm light irradiation. HRTEM images were captured on the Talos F200X instrument (FEI Co., Ltd). Where photocatalyst was pre-dispersed under sonication and dipped on the molybdenum mesh as the copper-free supporting substrate. UV–vis DRS spectra were recorded on the UV-3600 Plus spectrometer (Shimadzu Co., Ltd) with spectroscopic pure BaSO4 as the references. Steady-state and time-decay PL spectra were recorded at room temperature on the QM400 and FLSP920 spectrofluorometers, respectively.
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