Autosorb IQ Quantachrome Instruments Description: The Quantachrome Autosorb iQ-AG equipment is ideal for specific surface
area and macro/mesopore analysis. This equipment allows degassing of two samples and physisorption measurements of a third sample simultaneously at minimum
relative pressure of P/P0 > 1x10-3. The gas sorption analizer is equipped with a cryogenic
dewar for measurements until 90 hours.
Applications: Autosorb iQ-AG is perfect for the characterization of nanoparticles,
macroporous, macro/mesoporous and mesoporous materials like aluminas, silicas and
other oxides including M41S materials (eg. MCM-41), PMOs, KITs and many SBAs.
Avanti J-30I Beckman Coulter Description: High-speed centrifuge with aluminum rotors at fixed angle
- Rotor JA-25.15 (maximum centrifugal force = 74200g, maximum speed = 25000 rpm, capacity for 24 tubes of 15 mL each, total capacity = 360 mL)
- Rotor JLA-16.250 (maximum centrifugal force = 38500g, maximum speed = 16000 rpm, capacity for 6 tubes of 250 mL each, total capacity = 1500 mL)
- Rotor JA-10 (maximum centrifugal force = 17700g, maximum speed = 10000 rpm, capacity for 6 tubes of 500 mL each, total capacity = 3 L)
Applications: Allows to centrifuge samples such as emulsions, dispersions,etc at angular velocities up to 25000 rpm (74200 g) at various temperatures (from -20˚C a 40˚C), which can be used for phase separation, stability studies, etc. in colloidal systems and for the separation of cells and proteins.
3D DLS Spectrometer LS INSTRUMENTS Description: Photon Correlation Spectrometer (PCS) for dynamic (DLS) and static (SLS) light scattering measurements for angles in the 20-140º range and capacity of supressing multiple scattering thanks to 3D-cross correlation technology (down to 5% of transmission for sub-micrometer sample thickness). The instrument is equipped with a He-Ne laser and its software allows the estimation of particle size by Cumulant or CONTIN analysis. It is also possible to measure non-ergodic samples with a rotating sample holder.
Applications: Estimation of particle size and shape, size distribution, etc. in colloid systems (e.g. solid dispersions, micelles, microemulsions, nanoemulsions, polymers, vesicles or liposomes) Estimation of molecular weight of polymers and interaction parameters (e.g. second virial coefficient). Estimation of gel transitions.
4700PSMW Malvern Instruments Description: Photon Correlation Spectrometer (PCS) that allows to measure dynamic (DLS) and static (SLS) light scattering. The radiation source is an Ar laser. The instrument is equipped with a temperature controller for measurements in the 5-90 ºC range. The instrument´software for data treatment includes CONTIN and REPES algorithms.
Applications: Estimation of particle size and shape, size distribution, etc. in colloid systems (e.g. solid dispersions, micelles, microemulsions, nanoemulsions, polymers, vesicles or liposomes) in the 2-1000 nm range. Estimation of molecular weight.
MasterSizer 2000 Malvern Instruments Description: Instrument Mastersizer 2000 that measures by means of laser diffraction the size and distribution of particles or droplets in suspension. It is equipped with a liquid dispersing unit for small volume (Hydro 2000G) to measure emulsions, dispersions, etc. and a solid dispersion unit (Scirocco) to analyse powder. It is equipped with a software (windows operated) for the data processing to obtain the characteristic size (droplet, particle) and its distribution.
Applications: Determination of the droplet/particle diameter for emulsions, suspensions and solid samples (powder) in the range of 100 nm – 2000 m. The results are expressed in standard percentiles D(v,0.1), D(v0.5), D(v0.9), mean volume diameter (D[4,3]), mean surface diameter (Sauter mean diameter, D[3,2]), specific surface area (SSA), etc.
HECUS X-RAY SYSTEMS GMBH GRAZ Description: Instrument for determinations of x-ray scattered intensity as a function of scattering angle (Hecus X-ray Systems, Graz, Austria). This instrument is equipped with a generator Siemens K-760, Kratky camera, collimator and linear detector. It can measure at small angle (0.2º-8º).
Applications: Structural characterization of materials within the nanometer range. This includes determination of symmetry, morphology, characteristic size, fractal dimension and surface area. These studies can be applied to liquid crystals, micellar aggregates, mesoporous materials, nanoparticles and proteins.
Spectofotometer Small and Wide Angle X-ray Scattering (SWAXS).
S3 MICRO HECUS X-RAY SYSTEMS GMBH GRAZ Description: S3 MICRO instrument ((Hecus X-ray Systems, Graz, Austria) for determinations of x-ray scattered intensity as a function of scattering angle. This instrument is equipped with a GENIX microfocus X-ray source and a FOX 2D point-focusing element (both from Xenocs, Grenoble). It can measure simultaneously at small angle (0,2º-8º) and wide angle (18º-28º ).
Applications: Structural characterization of materials within the nanometer range. This includes determination of symmetry, morphology, characteristic size, fractal dimension and surface area. These studies can be applied to liquid crystals, micellar aggregates, mesoporous materials, nanoparticles, proteins and nanostructured films.
CARY ECLIPSE VARIAN Description: The Cary Eclipse fluorescence spectrometer is highly sensitive and it is equipped with a Xe lamp (80 Hz). The wavelength range is 200 900 nm with a precision of +/- 1.5 nm. A data acquisition speed of up to 80 points per second can be achieved that is especially suitable for kinetic studies.
Applications: Measurement of fluorescence (emission, excitation), fosforescence and chemi/bio luminiscence.