ATR-FTIR analysis was performed to detect the possible structural changes of SF after loading with curcumin. Each spectrum was acquired on a NicoletTM iS5 spectrometer (Thermo Scientific, Waltham, MA, USA), equipped with an iD3 ATR accessory (Thermo Scientific, Waltham, MA, USA) controlled by OMNIC Software Ver. 6.1.0.0038 (Waltham, MA, USA), measuring in absorbance mode with a resolution of 4 cm−1, a spectral range of 4000–550 cm−1, and 64 scans, using N-B strong apodization and mertz phase correction.
Nicolet is5 spectrometer
Manufactured by Thermo Fisher Scientific
Sourced in United States, Japan
The Nicolet iS5 spectrometer is a compact Fourier-transform infrared (FTIR) spectrometer designed for routine analysis of a wide range of samples. It features a durable, user-friendly design and delivers reliable performance in a small footprint.
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Lab products found in correlation
Id5 atr accessory, by Thermo Fisher Scientific (7 mentions)
D8 advance, by Bruker (3 mentions)
Manual hydraulic press, by Specac (3 mentions)
Attenuated total reflectance unit, by Thermo Fisher Scientific (2 mentions)
K alpha spectrometer, by Thermo Fisher Scientific (2 mentions)
Id7 atr accessory, by Thermo Fisher Scientific (2 mentions)
Gladiatr, by PIKE Technologies (2 mentions)
Rf 6000 fluorescence spectrophotometer, by Shimadzu (2 mentions)
Ihr320, by Horiba (2 mentions)
Minolta cs 150 colorimeter, by Konica Minolta (2 mentions)
Uv 2600 spectrometer, by Shimadzu (2 mentions)
Omnic software, by Thermo Fisher Scientific (2 mentions)
Hydraulic press, by Specac (2 mentions)
Id1 transmission adapter, by Thermo Fisher Scientific (2 mentions)
Id5 atr sampling accessory, by Thermo Fisher Scientific (2 mentions)
Jsm 6010la, by JEOL (1 mentions)
Eos 760d camera, by Canon (1 mentions)
Scd 050 sputter coater, by Oerlikon Balzers (1 mentions)
Id7 atr, by Thermo Fisher Scientific (1 mentions)
U 3010 spectrophotometer, by Hitachi (1 mentions)
117 protocols using nicolet is5 spectrometer
1
Structural Changes of Silk Fibroin by Curcumin
2
Optical and Morphological Analysis of Fibers
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The optical and morphological properties of fibers are analyzed by polarizing optical microscopy (POM) and scanning electron microscopy (SEM). POM is done in transmission mode using an Olympus BX51 equipped with a Linkam (T95 series LTS120E, Surrey, UK) heating/cooling stage, an Olympus DP73 camera (Tokyo, Japan) and a Canon EOS760D camera (Tokyo, Japan). SEM imaging of the fibers are done using JEOL JSM-6010LA (Akishima, Japan) being operated in 12–15 kV range using an In-lens secondary electron detector. For SEM imaging fiber samples are gold coated (≈25 nm thickness) using a sputter coater (Balzers SCD 050 Sputter Coater) for 100 s. SEM image analysis is done using ImageJ® software to calculate the fiber diameter [42 (link)]. The average fiber diameter is calculated by analyzing 50 fibers from different sample locations. Infrared spectroscopy (IR) is done using a Thermo ScientificTM NicoletTM iS5 spectrometer with id5 ATR accessory.
3
Analysis of Wood Waste Mercerization and Silanization
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The changes in chemical structure, which have arisen under the influence of the performed mercerization and silanization of wood waste were recorded using a Nicolet iS5 spectrometer equipped with a diamond crystal in an attenuated total reflectance unit manufactured by Thermo Electron Corporation (Madison, USA with Labsoft, Warsaw as representation in Poland). All analyses were carried out at room temperature. First, the small amount of pre-dried filler in a form of fine-grained waste flour was transferred onto the crystal attenuated total reflectance unit (iD7 ATR, Thermo Fisher Scientific, Waltham, USA with Labsoft, Warsaw as representation in Poland). Followed by pressing the filler with a spatula to cover the crystal with an even layer of the analyzed sample. Then, the waste flour was additionally pressed down with a screw equipped with an attachment for loose samples to tightly compress the sample of filler. Spectra were recorded for wavenumbers in the range of 4000–600 cm−1 in 4 cm−1 intervals. Sixteen scans were averaged. Within the paper, registered spectra are presented using the dependence of transmittance T (%) and wavenumber v (cm−1). The obtained results were processed using the Omnic 9.6 computer program.
4
Reaction Progress Monitoring by FTIR
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Fourier-transform infrared spectroscopy (FTIR) was applied to track the reaction progress using a Thermo Scientific (Waltham, MA, USA) Nicolet iS5 spectrometer equipped with a diamond crystal in an attenuated total reflectance unit manufactured by Thermo Electron Corporation. FTIR analysis was conducted in the wavenumber range of 4000–400 cm−1, with a scanning resolution of 4 cm−1.
5
Multimodal Characterization of Quantum Dots
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Fluorescence spectroscopy
was performed
using an RF-5301PC fluorescence spectrophotometer (Shimadzu, Japan).
FT-IR spectra were recorded on a Nicolet iS5 spectrometer (Thermo
Electron Corporation). Powder XRD patterns of the prepared QDs were
obtained on a BDX330 X-ray diffractometer using Cu K radiation. XPS
measurements were performed by using an AMICUS surface analysis spectrometer.
TEM images of the nanoparticles were carried out with a Hitachi H-600
transmission electron microscope. UV/vis absorption spectra were obtained
by a Hitachi U-3010 spectrophotometer. CD spectra were performed using
a Jasco J-810 spectropolarimeter using samples in aqueous solution;
all the samples and free cysteine were measured at neutral solution
(pH ∼7). All the QD solutions were diluted to make sure the
absorption peaks are kept below an optical density of 1.2. All the
curves were averaged from the results of five repeats of the measurements.
was performed
using an RF-5301PC fluorescence spectrophotometer (Shimadzu, Japan).
FT-IR spectra were recorded on a Nicolet iS5 spectrometer (Thermo
Electron Corporation). Powder XRD patterns of the prepared QDs were
obtained on a BDX330 X-ray diffractometer using Cu K radiation. XPS
measurements were performed by using an AMICUS surface analysis spectrometer.
TEM images of the nanoparticles were carried out with a Hitachi H-600
transmission electron microscope. UV/vis absorption spectra were obtained
by a Hitachi U-3010 spectrophotometer. CD spectra were performed using
a Jasco J-810 spectropolarimeter using samples in aqueous solution;
all the samples and free cysteine were measured at neutral solution
(pH ∼7). All the QD solutions were diluted to make sure the
absorption peaks are kept below an optical density of 1.2. All the
curves were averaged from the results of five repeats of the measurements.
6
Characterization of Magnetic Nanocomposites
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X-ray diffraction (XRD) patterns are obtained with DX-2700 X-ray diffractometer (Cu-Ka radiation, λ = 1.54 Å). The morphology of the as-prepared samples was measured using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Raman spectra were recorded on a cryogenic matrix using a 532-nm laser. Fourier transform infrared (FT-IR) spectra were measured with a Thermo Scientific Nicolet iS5 spectrometer, with a resolution of 4.000 cm−1 in the range of 400–4000 cm−1, using the attenuated total reflection mode. The room magnetic temperature hysteresis loops were obtained on a vibrating sample magnetometer (VSM, manufactured by Lakeshore, Inc.). The chemical states and surface components of the samples were measured by X-ray photoelectron spectroscopy (XPS) on an Thermo Scientific K-Alpha spectrometer. Based on coaxial-line theory, the related EMW parameters of samples in the frequency of 2–18 GHz range were measured on a vector network analyzer (VNA, 3672B-S, Ceyear). Samples were wrapped into paraffin at a filling ratio of 15 wt% and then shaped into a toroid with 7 mm outer diameter and 3.04 mm inner diameter. The infrared thermal images (FLIR ONE PRO) were taken to visualize the heat insulation process of the samples on a heating platform. Micromagnetic simulation and cross-section (RCS) simulation were described in detail in the supporting information.
7
ATR-FTIR Analysis of Silk Fibroin Nanoparticles
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ATR-FTIR was employed with the purpose of confirming the change of SF to a non-soluble state (enriched in β-sheet structures), as well as to corroborate the presence of the nanoparticles in the materials produced, identifying the characteristic bands of TiO2. Spectra were acquired on a Nicolet iS5 spectrometer, with an iD5 ATR accessory (Thermo Scientific, USA) using OMNIC software (Ver. 9.3.30), determining in absorbance mode with a resolution of 4 cm−1, a spectral range of 4000–550 cm−1, and 64 scans.
8
Characterization of MFe2O4 Nanostructures
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The UV-Vis diffuse reflectance spectra (UV-Vis DRS) of the samples were obtained on a UV-Vis spectrophotometer (Lambda 950, PerkinElmer) using an integrating sphere accessory, and BaSO4 was used as a reflectance standard. X-ray diffraction (XRD) experiments were carried out using a Rigaku D/MAX 2500 diffractometer with Cu Kα radiation. The size and morphologies of MFe2O4 were characterized with the aid of a JSM-7000F field emission scanning electron microscope. Fourier transform infrared (FT-IR) spectroscopy was recorded on a Thermo Nicolet iS5 spectrometer with a KBr disk. The magnetic property was measured at room temperature with the Quantum Design MPMS-SQUID VSM-094. X-ray photoelectron spectroscopy (XPS) measurements were performed using a Kratos AXIS ULTRA DLD. Electron paramagnetic resonance (EPR) measurements of spin-trapped radicals with spin-trap reagent 5,5-dimethyl-1-pirroline-N-oxide (DMPO) (Sigma-Aldrich) were carried out at room temperature with a Bruker A300 spectrometer equipped with a high-pressure mercury lamp as the irradiation source. To minimize experimental errors, the same type of quartz capillary tube was used for all EPR measurements. An EPR spectrometer was coupled to a computer for data acquisition and instrument control.
9
FTIR Analysis of CdTe/ZnSe Quantum Dots
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The FTIR measurements of the CdTe/ZnSe core/shell QDs with or without different nucleobases were performed over the range of wavenumber 4,000–550 cm−1 using a Thermo Scientific Nicolet iS5 spectrometer (Thermo Fisher Scientific, Inc., Waltham, MA, USA) equipped with iD5 ATR-Diamond.
10
ATR-FTIR Spectroscopy of Samples
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IR spectra were recorded using an iD7 ATR accessory and a Nicolet iS5 Spectrometer (ThermoFisher). 200 scans per sample.
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