Transmission electron microscopy (TEM) images of the Fe3O4@MPS@PMAC nanoparticles were obtained by an FEI Tecnai G2 20 transmission electron microscope operating at 200 kV. Field-emission scanning electron (FE-SEM) images were recorded on a Hitachi S-4800 cold field-emission scanning electron microscope (Hitachi, Tokyo, Japan) equipped with an energy-dispersive X-ray spectrometer (EDX). Fourier transform infrared spectroscopy (FT-IR) characterization was performed using a Fourier spectrophotometer with KBr pellets (Nicolet, Wisconsin, USA). Thermogravimetric analysis (TGA) was carried out under nitrogen flow at a heating rate of 10 °C/min from 25 °C to 700 °C on a Pyris 1 TGA instrument (Perkin Elmer, Massachusetts, USA). All nanoparticles were dried at 60 °C prior to each TGA measurement to remove the solution attached to the surface. The saturation magnetization curves were measured at room temperature with a Physical Property Measurement System 9 T (Quantum Design, San Diego, USA).
Pyris 1 tga instrument
Manufactured by PerkinElmer
Sourced in United States
The Pyris 1 TGA is a thermogravimetric analysis (TGA) instrument manufactured by PerkinElmer. It measures the change in the weight of a sample as a function of temperature or time in a controlled atmosphere. The Pyris 1 TGA provides precise and accurate measurements of weight changes, enabling the analysis of thermal stability, composition, and decomposition characteristics of materials.
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Lab products found in correlation
S 4800 cold field emissionscanning electron microscope, by Hitachi (1 mentions)
Tecnai g2 20 transmission electron microscope, by Hitachi (1 mentions)
Jem 1400 microscope, by JEOL (1 mentions)
Gemini 2375, by Micrometrics (1 mentions)
Jsm 7610f microscope, by JEOL (1 mentions)
Mercury 300 mhz spectrometer, by Agilent Technologies (1 mentions)
Icap q icp ms, by Thermo Fisher Scientific (1 mentions)
Jem 1400 tem, by JEOL (1 mentions)
Spectrum bx, by PerkinElmer (1 mentions)
Jem 1400, by JEOL (1 mentions)
Zetasizer nano z, by Malvern Panalytical (1 mentions)
Jsm 7610f, by JEOL (1 mentions)
Dsc821e apparatus, by Mettler Toledo (1 mentions)
Chi660d electrochemical workstation, by Chenhua (1 mentions)
D2 phaser desktop x ray diffractometer, by Bruker (1 mentions)
2400 series 2 chns o elemental analyser, by PerkinElmer (1 mentions)
Avanti j e centrifuge, by Beckman Coulter (1 mentions)
12 protocols using pyris 1 tga instrument
1
Characterization of Fe3O4@MPS@PMAC Nanoparticles
2
Comprehensive Characterization of Nanoparticles
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The nanoparticles were imaged by SEM using a JEOL JSM-7610F microscope (Japan) at 15 kV without any pretreatment. For TEM imaging, a JEOL JEM-1400 microscope was used at 100 kV by placing a drop of nanoparticles diluted in ethanol on a copper grid and dried at 60 °C. Infrared (IR) spectra were acquired using a Perkin-Elmer Spectrum BX instrument (USA), using KBr pellets at the region of 400–4400 cm−1 with a resolution of 4 cm−1. The surface area, pore volume, and pore size were measured using N2 physisorption isotherms on a Micrometrics Gemini 2375 volumetric analyzer (USA). Before analysis, samples were degassed at 140 °C for 10 h. Thermogravimetric analysis (TGA) was performed on a Perkin-Elmer Pyris 1 TGA instrument (USA) in a temperature range of 25–600 °C and a heating rate of 20 °C/min. XPS measurements were used (model number JPS-9030) manufactured by JOEL company, Japan. All samples were etched for 20 s by Ar gas to remove surface contamination inside an Ultra High Vacuum Chamber (UHV) of about 10−9 Torr. Particle size was measured at different pH values using DLS Malvern instruments (Zetasizer Nano ZS, UK) at 25 °C. UV spectra were obtained using a SpectraMax Plus 384 microplate reader (USA).
3
Characterization of Polymer Membranes
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NMR spectra were recorded on a Varian mercury (300 MHz) spectrometer using tetramethylsilane as reference. Thermogravimetric analysis (TGA) was performed under a nitrogen atmosphere at a heating rate of 10°C min−1 on polymers in open aluminum pans using a Pyris 1 TGA instrument (PerkinElmer). Before analysis, the TGA furnace temperature was kept at 100 °C under a nitrogen atmosphere for 10 min to remove water. Differential scanning calorimetry (DSC) was performed on a TA Q2000 instrument at a heating rate of 10°C min−1 in the range 100–200 °C under nitrogen. Scanning electron microscopy (SEM) images of the membranes were obtained using an FEI Nova Nano 450 microscope. Contact angles (CAs) of the prepared membranes were measured using a contact goniometer (POWEREACH/JC2002C2 CA meter). Before testing, the membranes were vacuum dried for 12 h. Dielectric constants of the thin membranes (coated with silver using a vacuum evaporation method) were obtained using a Hewlett-Packard 4285A apparatus at room temperature using a frequency range of 1000 Hz to 10 MHz.
4
Polymer Film Thermal Analysis
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TGA of the polymer films was measured with a PerkinElmer Pyris 1 TGA instrument (Waltham, MA, USA) under N2 (50 mL/min) at a heating rate of 10 °C/min before and after SNP grafting. Weight loss curves were recorded from room temperature to 800 °C for a single specimen.
5
Thermal Stability of MWCNTs–HNIPU Composites
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To investigate the thermal stability of the MWCNTs–HNIPU composites, a PerkinElmer Pyris 1 TGA instrument was employed and TGA was performed from room temperature to 600 °C with a heating rate of 10 °C min−1 in a N2 atmosphere.
6
Thermogravimetric Analysis of PhCN Solutions
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For the analysis of m/z>45, the thermogravimetric analysis of pure PhCN solutions was carried out on a Perkin Elmer Pyris 1 TGA instrument. For the analysis of m/z<45 (H2, H2O) in GA and GB (Fig. 3 ), the TG-MS data was recorded on a Netzsch STA 409 CD instrument equipped with a Skimmer QMS 422 mass spectrometer (MS/EI). Details are provided in the Supplementary Method .
7
Comprehensive Characterization of Nanomaterials
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The 1H and 13C NMR spectra were recorded using the JEOL RESONCE
500 (Tokyo, Japan) and the solvent peak reference: CDCl3 δ = 7.26 (1H) and δ = 77.0 (13C) ppm. The chemical shifts of δ are given in ppm. Fourier
transform infrared (FT-IR) spectra were measured using a PerkinElmer
Spectrum BX (Waltham, USA) at wavenumbers in the range of 4400–400
cm–1. The X-ray diffraction (XRD) pattern was used
to study the crystallite shape and size of the formed Fe3O4 and Fe3O4@SiO2 nanomaterials.
Mass spectra were obtained using an Agilent GC–MS instrument
(Agilent, Santa Clara, California, USA). Transmission electron microscopy
(TEM) images were obtained using a JEOL JEM-1400 TEM (Tokyo, Japan)
at 100 kV. An X-ray photoelectron spectroscopy (XPS) measurement was
used to confirm the surface modification of the organic compounds
by heterogeneous and homogeneous methods. Thermogravimetric analysis
(TGA) was performed on a PerkinElmer Pyris 1 TGA instrument (PerkinElmer,
Waltham, USA) with a heating rate of 10 °C/min and a temperature
range of 25–700 °C under a nitrogen atmosphere. Inductively
coupled plasma mass spectrometry (ICP–MS, Tucson, USA) was
used to determine the Cr(VI) concentration before and after adsorption.
All samples were diluted to 1 ppm for measurement with the Thermo
Scientific iCAPQ ICP MS. The pH of each solution was adjusted with
a SevenCompact pH meter S220 by adding HCl or KOH.
500 (Tokyo, Japan) and the solvent peak reference: CDCl3 δ = 7.26 (1H) and δ = 77.0 (13C) ppm. The chemical shifts of δ are given in ppm. Fourier
transform infrared (FT-IR) spectra were measured using a PerkinElmer
Spectrum BX (Waltham, USA) at wavenumbers in the range of 4400–400
cm–1. The X-ray diffraction (XRD) pattern was used
to study the crystallite shape and size of the formed Fe3O4 and Fe3O4@SiO2 nanomaterials.
Mass spectra were obtained using an Agilent GC–MS instrument
(Agilent, Santa Clara, California, USA). Transmission electron microscopy
(TEM) images were obtained using a JEOL JEM-1400 TEM (Tokyo, Japan)
at 100 kV. An X-ray photoelectron spectroscopy (XPS) measurement was
used to confirm the surface modification of the organic compounds
by heterogeneous and homogeneous methods. Thermogravimetric analysis
(TGA) was performed on a PerkinElmer Pyris 1 TGA instrument (PerkinElmer,
Waltham, USA) with a heating rate of 10 °C/min and a temperature
range of 25–700 °C under a nitrogen atmosphere. Inductively
coupled plasma mass spectrometry (ICP–MS, Tucson, USA) was
used to determine the Cr(VI) concentration before and after adsorption.
All samples were diluted to 1 ppm for measurement with the Thermo
Scientific iCAPQ ICP MS. The pH of each solution was adjusted with
a SevenCompact pH meter S220 by adding HCl or KOH.
8
Thermal Analysis of Dried BNC Samples
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To assess the thermal properties of the dried BNC samples, thermogravimetric analysis was conducted using a Pyris 1 TGA instrument (PerkinElmer, Waltham, MA, USA). Each film weighing 10 mg underwent a heating process from 25 to 800 °C at a temperature ramp rate of 10 °C/min to generate thermogravimetric curves.
9
Characterization of Nanoparticle Drug Delivery Systems
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Several techniques were employed to confirm the successful formation of the nanosystem. Fourier Transform Infrared (FTIR) spectra were recorded using a PerkinElmer Spectrum BX instrument, covering the range of 400–4400 cm−1. Thermogravimetric Analysis (TGA) curves were obtained at a heating rate of 20 °C min−1, within a temperature range of 25–600 °C, using a PerkinElmer Pyris 1 TGA instrument. X-ray Photoelectron Spectroscopy (XPS) analyses were conducted on a JEOL JPS-9030 photoelectron spectrometer. The morphology and particle size were examined by Scanning Electron Microscopy (SEM) using a JEOL JSM-7610F instrument at 15 kV, and by Transmission Electron Microscopy (TEM) on a JEOL JEM-1400. The hydrodynamic size and zeta potential of the samples were measured at various pH levels using Dynamic Light Scattering (DLS) on a Malvern Instruments Zetasizer Nano ZS at 25 °C. Drug loading capacity and release profiles were quantified using a UV-vis spectrophotometer.
10
Polymer Characterization via Spectroscopy
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The polymer structures were determined by nuclear magnetic resonance hydrogen (1HNMR) spectroscopy at 300 MHz (Bruker Avance, Bruker BioSpin, Rheinstetten, Germany) and Fourier transform infrared (FT-IR) spectroscopy (Nicolet AVATAR 360). The solvent for 1HNMR was deuterated trichloromethane (CDCl3), and the blank background for FT-IR was potassium bromide (KBr). The eluent for gel permeation chromatography (GPC, Agilent, Palo Alto, CA, USA) to measure the molecular weight of the polymers was N,N-dimethylformamide (DMF). The standard sample was monodisperse polystyrene. Thermogravimetric analysis (TGA) was performed with a PerkinElmer Pyris 1 TGA instrument (PerkinElmer, MA, USA) and differential scanning calorimetry (DSC) with a DSC 821e apparatus (Mettler, Zurich, Switzerland). The gas atmosphere for both was nitrogen, and the heating rate was 10 °C min−1. Electrochemical correlation data were obtained with the classical three-electrode system and evaluated using a CHI660D electrochemical workstation (Chenhua, Shanghai, China). Optical properties were assessed on a UV-1600 spectrophotometer (Macy, Shanghai, China). The measurement of the button cell was completed in a NEWARE battery test system.
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