Scanning electron microscopy (SEM, FEI NanoSEM 230), transmission electron microscopy (TEM, JEOL JEM2200fS) and atomic force microscopy (AFM, Bruker ICON3) were employed to characterize the morphology and microstructure. A drop shape analyzer (DSA 30, Krüss, Germany) was utilized to measure the water contact angles (CA). A FTIR spectrometer (PerkinElmer Spectrum Two) with an attenuated total reflection accessory was used to perform the FTIR measurements. The resistances (R) were measured in a four-probe method by a Keithley 4200 electrometer so as to calculate the electrical conductivity (δ). EMI SE in the frequency range of 8.2–12.4 GHz (X-band) was measured by a vector network analyzer (Agilent 8517A) in the waveguide method. More than three specimens were tested for each component. The S-parameters were recorded and used to calculate the SET, SER, and SEA. To evaluate the electrothermal performance, various DC voltages were applied to the 10L MXene@PI composite foams using a DC-regulated power supply. The temperature of the sample was measured by a digital thermometer (UT325) with its T-type thermocouple contacting the surface of the sample. The electromechanical response of the composite foams was obtained by measuring the resistance change using the Keithley 4200-SCS electrometer in a two-probe method.
Icon3
Manufactured by Bruker
The ICON3 is a high-performance benchtop NMR spectrometer designed for a variety of analytical applications. It offers a compact and user-friendly platform for obtaining detailed structural information about molecules. The ICON3 provides robust and reliable performance, ensuring accurate and reliable data acquisition.
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Lab products found in correlation
Jem 2200fs, by Bruker (1 mentions)
Nanosem 230, by Thermo Fisher Scientific (1 mentions)
Spectrum two, by PerkinElmer (1 mentions)
Sodium chloride (nacl), by Avantor (1 mentions)
Hydrochloric acid (hcl), by Avantor (1 mentions)
Digital sonifier 450, by Emerson (1 mentions)
Szx10 microscope, by Olympus (1 mentions)
Sigma vp field emission scanning electron microscope, by Zeiss (1 mentions)
Nanoscope software, by Bruker (1 mentions)
Rtespa 150 probes, by Bruker (1 mentions)
5 protocols using icon3
1
Characterization of MXene@PI Composites
2
Atomic Force Microscopy of Supported Lipid Bilayers
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ScanAsyst-AiIR probes were
used to analyze the topography of the SLs on the Bruker Icon 3 atomic
force microscope.
used to analyze the topography of the SLs on the Bruker Icon 3 atomic
force microscope.
3
Cellulose Nanocrystals for Bioapplications
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Cellulose nanocrystals (CNC, prepared via sulfuric acid hydrolysis of bleached softwood kraft pulp, characterized elsewhere 17, 38 ), were purchased in freeze-dried form from CelluForce (Montreal, Canada). CNC (120 ± 61 nm length by 4.0 ± 1.3 nm height, determined via AFM, Bruker ICON3, Supporting Information Figure S1, using FiberApp tracking 39 ) were dispersed in distilled water at 2 wt%, probe sonicated in an ice bath (3 × 10 minute cycles, 60% amplitude, Digital Sonifier 450, Branson Ultrasonics) and stored at 4 ˚C prior to use. Lysozyme from Hen Egg White (HEWL, >90%) was purchased from Sigma Aldrich. Hydrochloric acid and sodium chloride were purchased from VWR Chemicals and used as received.
4
Multimodal Imaging of Protein Aggregates
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Prior to lap shear testing, all laps were photographed using a digital camera (16 MP resolution). Polarized optical microscopy was performed on selected samples using an Olympus SZX10 microscope, with the illumination, exposure and gain settings remaining unchanged across all images. A slight overexposure enabled the visualization of the fractures, while highlighting differences in birefringence patterns across the samples. Scanning electron microscopy images were recorded using a Zeiss Sigma VP field emission scanning electron microscope at 1.6 kV and working distance of ca. 7 mm. The monomeric HEWLs, their amyloids, and short amyloids were imaged by AFM (Bruker ICON3), with the samples being prepared from ∼0.05 mg mL−1 suspensions deposited on freshly cleaved mica substrates. The ChNCs were imaged by AFM using a JPK-Bruker NanoWizard IV XP on freshly cleaved mica. The length and width of the ChNCs were corrected for tip convolution according to previous work.26 (link)
5
Tapping Mode AFM Imaging of Worms and Fibrils
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Atomic force microscopy (AFM) imaging (Bruker Icon 3 equipped with Bruker RTESPA-150 probes) in tapping mode was performed on samples of worms (0.01 mg/mL) and amyloid fibrils (0.1 mg/mL) on freshly cleaved mica at a resolution of 1024x1024 lines and at a scan rate of 0.5 Hz. Images were flattened with the Bruker Nanoscope software.
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