M-110L Microfluidizer Processor Microfluidics Description: High pressure homogenizer Microfluidizer® model 110L equipped with two interaction chambers (F20Y y F12Y) with a ceramic capillary of 75 µm, a 200 ml glass reservoir and a plunger to fill the circuit with the sample. The maximum processing pressure of the homogenizer is about 1200 atm.
Applications: Allows the homogenization of liquid colloidal samples, mainly emulsions and suspensions at high pressure, due to the collapse of the disperse phase (droplets, or particles). This treatment may be performed with temperature control (up to 90ºC).
HPLC 1525 Series WATERS Description: Waters 1500 series Chromatograph equipped with a binary gradient pump (máximum flux = 10 mL/min and maximum pressure of 6000 psi or 414 bar), UV detector model 2489 (wavelength 190-600 nm), refractometer model Waters 2410 (flux = 0.03 to 10 mL /min and internal temperature control from 30 to 50˚C) and injector model Waters 2707 (injection volume = 0-50µL).
Applications: High Pressure Liquid Chromatography (HPLC) is an analysis technique that allows the separation of nonvolatile compounds from a mixture, such as inorganic compounds, aminoacids, peptides, proteins, lipids, sugars, drugs, petroleum derived products, synthetic polymers, etc. Qualitative and quantitative analysis is possible with HLPC.
BX51TRF - 6 Olympus Description: Optical microscope that can work with transmitted or reflected light. Different observation methods can be used: bright field, dark field, phase contrast, differential interference contrast, polarized light, and fluorescence.
It includes two revolvers in order to work with or without coverslips. Also, it is coupled a digital camera (Olympus DP73) which is connected to the computer with a software that capture images and videos.
V10E CytoViva, Inc. Description: The instrument combines enhanced dark field optical microscopy with high resolution spectral imaging. These integrated technologies have been designed to allow optical observation and spectral characterization of nanomaterials and cell matrices. There is no need of sample preparation in advance or fluorescent labeling to observe or characterize spectroscopically nanomaterials in complex media.
Applications: Quantitative spectral analysis of nanomaterials, characterization of surfaces and functional groups bound to nanomaterials, spectral characterization of biological samples with bacteries in tissues.
TM-1000 Tabletop Microscope Hitachi Description: Tabletop Scanning Electron Microscope.
Applications: Observation of the morphology of solid samples, such as polymeric and synthetic particles, meso/macroporous materials, textiles, etc., with high field depth (it allows focusing simultaneously a large part of the sample) and high resolution (in the nanometric scale range). Samples do not need to be conducting, that is, usually it is necessary to coat them with a very thin metal layer (e.g. Au, Pd) and without humidity. This is the reason why they have to be freeze-dryed.
AR-G2 Rheometer TA Instruments Ltd Description: Rheometer with magnetic bearings which allows measuring torques down to 0.003 N.m. It is possible to carry out either stress controlled or strain controlled measurements. The angular velocity range is 2x10-7 to 628 rad/s. The maximum measurable torque is 200 mN.m, with a resolution of 0.1 nN.m. Several geometries are available, such as concentric cylinders, cone-plate, plate-plate (different sizes) and also cross hatched plates which are suitable to measure gel samples. Temperature is controlled with a Peltier system (from -20ºC to 200ºC) and with a Upper heating plate device. There is also an interfacial rheometry accessory. The instrument's software enables to perform a wide variety of tests and analyses.
Applications: Determination of viscosities from flow curves (stress vs shear rate); estimation of storage (elastic) modulus and loss (viscous) modulus, creep assays, temperature ramps; Determination of gel and glass points; Estimation of interfacial viscosity and moduli.
Optilab REX Wyatt Description: The Optilab® rEX (refractometer with EXtended range) is a Refractive Index detector. Has a flow cell with a total volume of only 7.4 µL. This translates into minimized band broadening and better temperature stability. It can measure the absolute refractive index of a solution. In addition, it can measure the dn/dc of a solvent at the same wavelength of light as the light scattering instrument. You can replace the light source in the rEX for other wavelengths (e.g. 690, 633, 488, etc.). The temperature can be programmed from 4°C to 50°C. Compatible with all HPLC systems.
Applications: Refractive Index determination, mainly of liquid samples, can be useful in mesurements of other techniques (Dinamic Light Scattering as an example). It can be also possible to calculate the refraction index as a function of concentration for a compound. This can allow you to determine the purity or concentration of the compound which is dissolved in a liquid.