The raw ibuprofen powder and dried ibuprofen nanosuspension (nNS) were observed under a scanning electron microscope with an accelerating voltage of 15 keV. The sample was strewed onto carbon double-adhesive tape that adhered to a metal stub and then sputter-coated with gold. Images of the samples at 50× and 500× magnifications were taken using secondary electron image mode. The chemical structure was analyzed with an fourier transform infrared (FTIR) spectrophotometer (Nicolet 4700; Thermo Electron Corporation, Madison, WI, USA) using the KBr disk method. The crystallinity was analyzed with an X-ray powder diffractometer (Miniflex II; Rigaku Corp., Tokyo, Japan). The X-ray source was Cu-Kα, which employed an X-radiation wavelength of λ=1.541841 Å between a 2θ angle ranging from 4° to 60° with a voltage of 30 kV and current of 15 mA. The thermal properties of ibuprofen powder and ibuprofen nanocrystals were analyzed using a differential scanning calorimeter (DSC) (Pyris Sapphire DSC, Standard 115V; Perkin Elmer Instruments, Japan) and a thermo-gravimetric analyzer (TGA) (Pyris/TGA; Perkin Elmer Instruments) in air atmosphere. DSC analyzed within the ranges of −10°C to 100°C with a heating rate of 10°C/min. TGA analyzed within the ranges of 30°C–500°C at the same rate of DSC.
Nicolet 4700
Manufactured by Thermo Fisher Scientific
Sourced in United States, Japan
The Nicolet 4700 is a Fourier Transform Infrared (FTIR) spectrometer designed for laboratory applications. It is capable of analyzing a wide range of samples, including solids, liquids, and gases, to identify their chemical composition and structure. The Nicolet 4700 provides high-resolution data and accurate measurements through its advanced optical and electronic components.
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Lab products found in correlation
S 4800, by Hitachi (4 mentions)
Nrs 3100, by Jasco (2 mentions)
Pyris tga, by PerkinElmer (1 mentions)
Miniflex 2, by Rigaku (1 mentions)
Jnm al400 spectrometer, by JEOL (1 mentions)
Omnic software, by Thermo Fisher Scientific (1 mentions)
X ray diffractometer, by Jasco (1 mentions)
Theta probe spectrometer, by Thermo Fisher Scientific (1 mentions)
Su8000, by Hitachi (1 mentions)
Escalab 250xi instrument, by Thermo Fisher Scientific (1 mentions)
Cary 100, by Agilent Technologies (1 mentions)
Lcms 9030, by Shimadzu (1 mentions)
Fluoromax 4, by Horiba (1 mentions)
Smartlab diffractometer, by Rigaku (1 mentions)
Jnm ecz600r spectrometer, by JEOL (1 mentions)
Zeta potential analyzer, by Brookhaven Instruments (1 mentions)
Jem 3000f, by JEOL (1 mentions)
Sps 7800, by Seiko Instruments (1 mentions)
Delta nano c particle analyzer, by Beckman Coulter (1 mentions)
Ultima 3, by Rigaku (1 mentions)
17 protocols using nicolet 4700
1
Characterization of Ibuprofen Nanosuspension
2
FTIR Characterization of Powdered Samples
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A Thermo Electron Nicolet 4700 Fourier transform infrared (FTIR) spectrometer was used to collect spectra in transmittance mode at specific frequencies ranging from 4000 to 400 cm−1. The FTIR system was equipped with a KBr detector. The samples (powders) were placed on the FTIR collector window under room environment conditions. The resulting spectrum analyses were interpreted to identify the specific functional groups in the analyzed samples.
3
Nanoporous Carbon Characterization from Lotus Seed
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Nanoporous carbon materials obtained from the ZnCl2 activation of Lotus seed were characterized by scanning electron microscopy (SEM: S-4800, Hitachi Co. Ltd. Tokyo, Japan operated at 10 kV), powder X-ray diffraction (XRD: Rigaku X-ray diffractometer, RINT, Tokyo, Japan operated at 40 kV), Raman scattering (NRS-3100, JASCO, Tokyo, Japan: green laser of wavelength 524.5 nm at 0.01 mW power was used), Fourier-transform infrared spectroscopy (FTIR: Nicolet 4700, Thermo Electron Corporation, Waltham, MA, USA), and nitrogen adsorption isotherm analysis using an automatic adsorption instrument (Quanta chrome Autosorb-iQ2, Boynton Beach, FL, USA) at liquid nitrogen temperature (−196.1 °C). Barrett–Joyner–Halenda (BJH) method and density functional theory (DFT) were used to obtain pore size distributions. Note that BJH and DFT theory assumes cylindrical and slit-like pores, respectively.
4
Investigating Drug-Polymer Interactions
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To investigate the effect of preparation factors on the drug-polymer interaction, DPH, AMC, PVA, their physical mixture, and optimized microparticles were pulverized with dried KBr pellets and compressed with a hydraulic press machine. Each sample disk was analyzed over a scan range of 4000 to 400 cm−1 by FTIR spectrophotometer (Nicolet 4700, Thermo Electron Corporation, Waltham, MA, USA).
5
Characterization of Polymeric Materials
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1H NMR spectra (400 MHz) were recorded on a JEOL JNM-AL400 spectrometer at 298 or 343 K. The chemical shifts were calibrated using CHCl3 (7.26 ppm) or DMSO (2.50 ppm) as internal standards. Attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectra were recorded on Nicolet 4700 (Thermo Electron Co., Ltd.) equipped with a diamond attenuated total reflection (ATR) accessory (DurasamplIR II, SensIR Technologies Technologies) in air. SEC was performed on TOSOH HLC-8220 with two TSKgel Super AWM-H columns, with DMSO at 50 °C in the presence of 0.01 M lithium bromide as the eluent using RI detection and PEG standards. The flow rate was 0.5 mL/min.
6
FTIR Spectroscopic Analysis of Oleogels
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FTIR spectra of the ingredients and oleogels were analysed using a Fourier transform infrared spectrometer (Nicolet 4700, Thermo Electron Corporation, USA). Solid samples were recorded as an intimate mixture with powdered KBr. Oil and gel samples were operated in attenuated total reflectance (ATR) mode. The scanning range was 4000–600 cm−1 and spectral manipulations of the samples were performed using Omnic software (version 8, Thermo Electron Corporation, USA).
7
FTIR Spectroscopic Analysis of Samples
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A Thermo Electron Nicolet 4700 Fourier transform infrared (FTIR) spectrometer was used to collect the spectra in the transmittance mode at specific frequencies ranging from 4000 to 400 cm−1. The resulting spectrum analyses were interpreted to identify the specific functional groups within the analyzed samples.
8
Comprehensive Characterization of Nanoporous Activated Carbon
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The prepared nanoporous activated carbon materials were subjected to advanced characterizations, including thermogravimetric analysis (TGA) (SII Instrument, Model Exstar 600, Tokyo, Japan), Fourier-transform infrared (FTIR) (Nicolet 4700, Thermo Electron Corporation, Waltham, MA, USA) spectroscopy, powder X-ray diffraction (XRD) (Rigaku X-ray diffractometer, RINT, Tokyo, Japan), Raman scattering (NRS-3100, JASCO, Tokyo, Japan), X-ray photoelectron spectroscopy (XPS) (Theta Probe spectrometer, Thermo Electron Co. Karlsruhe, Germany) and scanning electron microscopy (S-4800, Hitachi Co., Ltd. Tokyo, Japan). In addition, the textural properties, including specific surface area and pore-volume and pore-size distributions, were estimated by nitrogen sorption measurements (Quantachrome Autosorb-iQ2, Boynton Beach, FL, USA).
9
Characterization of Sample and Recycled Papers
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The sample paper and the recycled papers were characterized by scanning electron microscopy (SEM: Hitachi S-4800, Hitachi Co., Ltd. Tokyo, Japan, operated at 10 kV and 10 µA) , X-ray diffraction (XRD: Rigaku X-ray diffractometer, RINT, Tokyo, Japan, operated at 40 kV and 40 mA with Cu-Kα radiation) , and Fourier-transformed infrared (FTIR) spectroscopy using ATR method on a Nicolet 4700 (Thermo Electron Corporation) . In addition, energy-dispersive X-ray spectroscopy (EDS) analyses were carried out on the sample paper and the recycled papers using a Horiba Model EMAX 7593-H accessory interfaced with a Hitachi S-4800 SEM instrument.
10
Investigating Eutectic Interactions with FTIR
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The interaction of eutectic system was investigated using a FTIR spectrophotometer (Nicolet 4700, Thermo Electron Corporation, Madison, USA). Menthol, camphor, and ibuprofen were evaluated using potassium bromide (KBr) disk method. The eutectic system at ratios of 1:9 to 9:1 M/C and ibuprofen eutectic solution were evaluated using a smart multi-bounce horizontal attenuated total reflection (HATR) combo kit set with a zinc selenide Avatar trough plate at 45° ( 25) .
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