Morphology of PRO-PCL nanofiber membranes and CTS-PVA cast films were observed through scanning electron microscopy (SEM) (s4500n, Hitachi, Japan). The mean diameter of PRO-PCL fibers was calculated by randomly measuring 100 fibers from five SEM images using ImageJ software (The National Institutes of Health, United States). Fourier transform infrared spectrum (FTIR) (America Thermo Fisher Scientific) spectra of nanofiber membranes and cast films were obtained from the Jasco FTIR spectrophotometer in the 500–4,000 cm−1. Thermogravimetric analysis (TGA) (America TA Instruments) of cast films and nanofiber membranes was studied. Samples were heated from 50°C to 500°C at a heat-up rate of 10°C/min in a nitrogen atmosphere. X-ray diffraction (XRD) measurements of cast films and nanofiber membranes were obtained with an X-ray diffractometer (Bruker AXS, Germany). The approximate process was to scan the sample over an angular range of 2θ from 10° to 80° at a scanning speed of 6 min−1 in increments of 0.02°.
Ftir spectrophotometer
Manufactured by Jasco
Sourced in Japan, United States
The FTIR Spectrophotometer is a laboratory instrument used for infrared spectroscopy. It measures the absorption of infrared radiation by a sample, providing information about the molecular structure and composition of the material.
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Lab products found in correlation
21 protocols using ftir spectrophotometer
1
Characterization of Nanofiber Membranes and Cast Films
2
Phytochemical Analysis of Natural Compounds
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The UV spectra were recorded with double beam UV-visible spectrophotometer. The FTIR spectra of the separated compounds were confirmed on JASCO FTIR Spectrophotometer (USA). NMR spectrum was revealed in DMSO-d6 on a Bruker Avance 500 or 600 spectrometer (Switzerland). ESI–MS was recorded on Waters UPLC-TQD (USA). Silica gel (60–120 mesh) was used to separate the various compounds by column chromatography against methanol and ethyl acetate of analytical grade (Merck & Co, USA). Purification of the compounds was achieved by pre-coated silica gel F254 TLC. Adsorption data for the free radical scavenging activity was measured by using Shimadzu 800 spectroscopy (Japan).
3
FTIR Characterization of Olmesartan-Loaded Nanoparticles
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The FTIR spectra of pure OLM and OLM-loaded NSs (ONS1-ONS4) were recorded using FTIR spectrometer (Jasco FTIR Spectrophotometer, Tokyo, Japan). Each samples were diluted with crystalline potassium bromide (sample:KBr, 1:10 wt/wt), and pressed into transparent film. The film was kept on sample holder and spectra was recorded using spectra manager software [37 (link)].
4
FTIR Spectroscopy of GFT Loaded Nanoparticles
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FTIR spectral studies of pure GFT, GFT loaded PLGA-NPs and GFT loaded CS-PLGA-NPs were performed using “FTIR spectrometer (Jasco FTIR Spectrophotometer, Japan)”. KBr technique was used to prepare a transparent pellet of each sample. FTIR spectra was recorded in the range of 4000 to 400 cm−1, and peaks were interpreted using “spectral manager” software.
5
Attenuated-Total-Reflection FTIR Analysis of Keratin Bioplastics
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Keratin based bioplastics were analysed by attenuated-total-reflection (ATR) FTIR spectroscopy into a Jasco FTIR spectrophotometer recording 25 scans with 4 cm−1 resolution in the range of 4000–400 cm−1. A spectra of washed wool fibres were recorded for comparison.
6
FTIR Analysis of Polymeric Biomaterials
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FTIR spectra of pure BTB, PLGA, tristearin, SL and their B-PLNs (B-PLN1-B-PLN4) were recorded using “FTIR spectrometer (Jasco FTIR Spectrophotometer, Tokyo, Japan)”. For the preparation of the sample, each sample was diluted with potassium bromide (KBr) crystal (1:10, w/w) to prepare pellets. FTIR spectra were recorded in the range of 4000 to 1000 cm−1, and peaks were interpreted using “spectral manager” software.
7
FTIR Analysis of Polymeric Nanoparticles
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The pure-IVO, blank-NPs, IVO-PLGA-NPs, and IVO-CS-PLGA-NPs FTIR spectra were taken using instrument “FTIR spectrometer (Jasco FTIR Spectrophotometer, Japan)”. The samples transparent pellets were prepared by KBr technique and FTIR spectra were recorded in the range of wavenumber 400–4000 cm−1.
8
FT-IR Analysis of Nanosponge Formulations
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FT-IR spectroscopy tests were conducted for DSM, β-CD, DPC, blank NSP, and DSM-loaded NSPs (D-NSP1-D-NSP4) to examine the interaction (if any) of DSM with any of the excipients added and the stability of the medication throughout the loading processes of nanosponges. Utilizing the KBr disc technique, potassium bromide was used to do the analysis. An FT-IR spectrophotometer (Jasco, V-630, FTIR spectrophotometer, Tokyo, Japan) was used to evaluate the samples, which were carefully mixed with KBr and palletized under vacuum and scanned in the range of 400–4000 cm−1.
9
Physicochemical Characterization of Substituted Benzylamine Derivatives
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All melting points were taken on a Büchi melting point M-560 apparatus and were uncorrected. IR spectra were recorded in Bromoform with a JASCO FT-IR spectrophotometer. 1H and 13C NMR spectra were measured at 200 and 50.0 MHz, respectively, in DMSO-d6 solution and TMS as an internal standard, using a Bruker Avance II Series 200 MHz spectrometer or at 300 and 75 MHz (APT) with a Bruker AC-E spectrometer. Column chromatography was performed with Merck silica gel (230–400 mesh ASTM). Elemental analyses (C, H, and N) were within ±0.4% of theoretical values. The substituted benzylamine derivatives were commercially available and were used without further purification. For all the compounds already cited in the literature, the IR and NMR spectra results were identical to those reported (1A–E). The 1H and 13C NMR spectra of new synthesized compounds (1F,G and 2A–C) are reported in the Supplementary Materials .
10
FTIR Analysis of ADL and Complexes
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The FTIR spectra of pure ADL, the PM and their binary and ternary complexes prepared by the KD and SE methods were recorded using an FTIR spectrometer (Jasco FTIR Spectrophotometer, Tokyo Japan). The samples were pressed into transparent pellets by diluting with crystalline potassium bromide. The FTIR spectra were interpreted using spectra manager software [30 (link),31 (link)].
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