In a typical synthesis of AgNPs, the aqueous plant extract was mixed with a 1.0 × 10−3 mol L−1 AgNO3 solution using a specific proportion to give a final volume of 20.0 mL in a 30 mL borosilicate glass vial (G30, Anton Paar). The mixture was then heated in microwave-assisted solvothermal conditions at different temperature and times, using an Anton-Paar Monowave 300 reactor, under magnetic agitation (heat to temperature in time mode, 800 W). After synthesis, we used acetone to induce precipitation of AgNPs and centrifuged the slurries for 10 min at 8000 rpm. The supernatant was discarded, the residual acetone was evaporated and the AgNPs were redispersed in water. To obtain sample powders, AgNPs sols were lyophilized.
Monowave 300 reactor
Manufactured by Anton Paar
The Monowave 300 is a microwave reactor designed for laboratory-scale organic synthesis. It is capable of performing controlled microwave heating and stirring of reaction mixtures in sealed vials or reaction vessels, allowing for precise temperature and pressure monitoring during the process. The Monowave 300 is a versatile tool for researchers and chemists working in various fields, facilitating efficient and reproducible reactions.
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Lab products found in correlation
Combiflash rf 200i, by Teledyne (1 mentions)
D2 phaser diffractometer, by Bruker (1 mentions)
Talos f200x microscope, by Thermo Fisher Scientific (1 mentions)
Avance 3 hd 400 mhz, by Bruker (1 mentions)
3flex adsorption analyzer, by Micromeritics (1 mentions)
Flash 2000, by Thermo Fisher Scientific (1 mentions)
Infinite 200 pro nanoquant, by Tecan (1 mentions)
Uv 1603, by Shimadzu (1 mentions)
1200 series, by Agilent Technologies (1 mentions)
4 protocols using monowave 300 reactor
1
Microwave-Assisted Synthesis of AgNPs
2
Optimized Microwave-Assisted Organic Synthesis
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All chemical reagents and solvents were obtained from commercial sources and used without further purification. Microwave reactions were performed using an Anton Paar Monowave 300 reactor. Chromatography was performed on a Teledyne ISCO CombiFlash Rf 200i using disposable silica cartridges. Analytical thin layer chromatography (TLC) was performed on Merck silica gel plates and compounds were visualized using UV or CAM stain. NMR spectra were recorded on a Bruker 600 spectrometer. 1H chemical shifts (δ) are reported relative to tetramethyl silane (TMS, 0.00 ppm) as internal standard or relative to residual solvent signals.
3
Multimodal Characterization of Materials
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Powder
X-ray diffraction (PXRD) data were obtained at room temperature on
a Bruker D2 PHASER diffractometer using Cu-Kα radiation (λ
= 1.5418 Å), collecting in the 5–35° 2θ range,
with steps of 0.02° and a time per step of 0.5 s. The samples
were deposited in the hollow of a zero-background silicon sample holder.
Elemental analysis (EA) was performed in an elemental analyzer Thermo
Scientific FLASH 2000. 1H and 31P nuclear magnetic
resonance spectroscopy (1H- and 31P NMR) data
were obtained with a Bruker Nanobay AVANCE III HD 400 MHz (2-channel)
NMR spectrometer. Thermogravimetric analysis (TGA) was carried out
by a thermogravimetric analyzer Shimadzu mod. TGA-50H. Nitrogen adsorption
isotherms at 77 K were measured on a Micromeritics 3Flex adsorption
analyzer. Fourier transform infrared (FTIR) measurements were obtained
with a Bruker spectrophotometer. Scanning electron microscopy (SEM)
images were obtained on a Carl Zeiss SMT Auriga. Transmission electron
microscopy (TEM) images were obtained on a FEI Talos F200X microscope.
Microwave synthesis was carried out using an Anton Paar Monowave 300
reactor. DIFP adsorption experiments were performed in an Agilent
8860 GC chromatograph with an FID detector. The column used was HP-5
of 50 m length, 0.320 mm diameter, and 1.05 μm thickness. Enzymatic
assays were performed in a Tecan Infinite 200 PRO NanoQuant.
X-ray diffraction (PXRD) data were obtained at room temperature on
a Bruker D2 PHASER diffractometer using Cu-Kα radiation (λ
= 1.5418 Å), collecting in the 5–35° 2θ range,
with steps of 0.02° and a time per step of 0.5 s. The samples
were deposited in the hollow of a zero-background silicon sample holder.
Elemental analysis (EA) was performed in an elemental analyzer Thermo
Scientific FLASH 2000. 1H and 31P nuclear magnetic
resonance spectroscopy (1H- and 31P NMR) data
were obtained with a Bruker Nanobay AVANCE III HD 400 MHz (2-channel)
NMR spectrometer. Thermogravimetric analysis (TGA) was carried out
by a thermogravimetric analyzer Shimadzu mod. TGA-50H. Nitrogen adsorption
isotherms at 77 K were measured on a Micromeritics 3Flex adsorption
analyzer. Fourier transform infrared (FTIR) measurements were obtained
with a Bruker spectrophotometer. Scanning electron microscopy (SEM)
images were obtained on a Carl Zeiss SMT Auriga. Transmission electron
microscopy (TEM) images were obtained on a FEI Talos F200X microscope.
Microwave synthesis was carried out using an Anton Paar Monowave 300
reactor. DIFP adsorption experiments were performed in an Agilent
8860 GC chromatograph with an FID detector. The column used was HP-5
of 50 m length, 0.320 mm diameter, and 1.05 μm thickness. Enzymatic
assays were performed in a Tecan Infinite 200 PRO NanoQuant.
4
Microwave-Assisted Synthesis and Characterization of Organic Compounds
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All reagents were purchased from commercial sources and used without further purification. Solvents were either used as purchased or dried according to procedures described elsewhere. 28 Microwave reactions were carried out using an Anton Paar Monowave 300 Reactor. Column chromatography was carried out using silica gel 60 (particle size 0.040-0.063 mm; 230-400 mesh) as the stationary phase, and TLC was performed on precoated silica gel plates (0.25 mm thick, 60 F254) and visualized propenylidene]malonitrile (DCTB) and 1,8,9-anthracenetriol, 1,8-dihydroxy-9(10H)-anthracenone (dithranol) were used as matrixes. UV/Vis spectra were recorded using a Shimadzu UV-1603 with spectrophotometric grade solvents. UV/vis absorption spectral wavelengths (λ) are reported in nanometers (nm), and molar absorption coefficients (ε) are reported in M -1 cm -1 . High performance liquid chromatography (HPLC) was performed at the chromatography service of the Laboratory of Instrumental Techniques (LTI) of the University of Valladolid using an Agilent 1200 Series with a C18 column (4.6 mm × 250 mm) with a UV/Vis (333 nm) detector. The mobile phase was toluene/methanol/acetonitrile (60:20:20) containing 0.1% trifluoroacetic acid (TFA) at 30 °C.
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