In-depth study of sample properties to understand complex processes and interactions
Gaining information on the behavior of materials used in fields such as applied immunology, molecular engineering, and genetic engineering can be as simple as determining the concentration of substances at different temperatures – and as complex as characterizing nanostructures and their behavior under different conditions. Anton Paar is a pioneer in many of the required fields of measurement technology and analysis methods.
Anton Paar Products
Anton Paar Bioindenter: UNHT³ Bio
Atomic Force Microscopes: Tosca
Ball mill: BM500
Compact Raman spectrometers: Cora 5001
Cryo & Humidity Chamber: CHC plus⁺
Density and sound velocity meter: DSA 5000 M
Digital heavy duty refractometer: Abbemat
Digital performance refractometer: Abbemat
Domed Cooling Stage for Four-Circle Goniometers: DCS 500
Dynamic shear rheometer measuring head: DSR 502
Fully customizable laboratory automation solution: HTX
Handheld density meter: DMA 35 Basic
Handheld Raman spectrometer: Cora 100
HTR Compact: Rheometer autosampler for high sample throughput
HTR: Rheometer automation for high sample throughput and complex sample handling
Inline refractometer: L-Rix
Low-Temperature Chamber: TTK 600
Micro Combi Tester: MCT³
Microwave digestion system: Multiwave 5000
Microwave Digestion System: Multiwave 7000
Microwave digestion system: Multiwave GO Plus
Microwave reactor: Monowave
Millikelvin thermometers: MKT
Modular Compact Rheometer: MCR 72/92
Modular Compact Rheometer: MCR 102e/302e/502e
Motorized alignment for XRD: z-alignment stage
Nano scratch tester: NST³
Nanoindentation tester: NHT³
Particle size analyzer: Litesizer
pH value measuring module: pH ME
Pin-on-disk tribometer: TRB³
Portable density meter: DMA 35
Revetest® Scratch Tester: RST³
Rolling-ball viscometer: Lovis 2000 M/ME
Rotational Rheometer: RheolabQC
SAXS/WAXS/BioSAXS system: SAXSpace
SAXS/WAXS/GISAXS/RheoSAXS laboratory beamline: SAXSpoint 5.0
Software for particle analysis: Kalliope™
Ultra nanoindentation tester: UNHT³
Vacuum Tribometer: TRB V / THT V
Anton Paar Applications
Lactose Purity According to Pharmacopoeia
The US and the European pharmacopoeias demand the analysis of the purity of lactose monohydrate polarimetrically. Determining the specific rotation with an MCP polarimeter from Anton Paar ensures high-quality products.
Glycerol is used in various industries as a moisturizer, a thickener, as antifreeze or as a precursor for explosives. Its quality as well as its concentration in solution can be determined by using refractometry.
Quality Control in Drugs
Polarimeters are essential in drug quality control to ensure the enantiomeric purity and therefore efficacy of pharmaceutical drugs.
Quality Control of Saline Solution
Abbemat refractometers from Anton Paar are valuable instruments for the precise analysis of concentration and purity of saline solutions.
Improve Digestion Quality and Save Money – Microwave Digestion rules out Open Digestion
Reliable elemental analysis results need robust sample preparation to destroy sample matrices or to separate matrix from analytes. The sample preparation step is by far the most error-prone and critical step of the analytical procedure.
In-Situ observation of the scratch/indentation true contact area to provide analysis without being model-dependent
Nanoindentation approach to mechanical testing of extremely soft materials
Nanotribological properties of Diamond like carbon thin flexible films on ACM rubber
Review of Indenter Materials for High Temperature Nanoindentation
Spherical Nanoindentation of Polyacrylamide Hydrogels using the Bioindenter (BHT)
The Ultra Nanoindentation Tester: New generation of thermal drift free indentation
Gold nanoparticles: Size matters, and so does stability
Gold nanoparticles are now used in many fields, from medicine to electronics, but each application has specific particle-size and stability requirements. Gold nanoparticles can be easily monitored with the Litesizer™ 500.
Applications of nanoindentation in biology and medicine
Nanoindentation for biological materials
Intrinsic bone tissue quality is altered in osteo-porosis and selectively influenced by its treatments
Nanoindentation for bone and mineral materials
Identifying three different particle sizes in one sample with DLS
Particle suspensions often contain more than one size of particle. However, many particle analyzers cannot resolve particle mixtures, instead they detect an average of all sizes. The Litesizer™ 500 can detect three sizes in one sample.
Nanoparticles for Ceramics: Size, Stability & pH
In nanoparticle suspensions that will be used in ceramics, particle size and stability are of vital importance. Suspension stability is essential to ensure that the particles to stay in suspension, and maintain constant particle size.
Temperature-dependent GISAXS studies on thin films
The temperature-induced decomposition of a thin film structure has been studied using the SAXSpoint system with the new temperature-controlled GISAXS stage.
An insight into the Structure of Copolymer Surfactants
The structure of inhomogeneous (core-shell) nanoparticles was studied with the SAXSpoint system. The internal structure of Pluronic P123 micelles in water was determined by calculating the radial electron density profile.
Collagen - A Validation Sample for SAXS Systems
The performance of the SAXSpoint 2.0 system is evaluated by measurements of tendon collagen. SAXSpoint 2.0 produces data with excellent resolution in the entire angular range and delivers true 2D SWAXS images.
Understanding Filter Efficiency - Virus Removal in Depth Filtration
Zeta potential, as the indicator for surface charge, helps to predict and to tune the efficiency of filter materials.
Surface Modification of Kapton® Films
The zeta potential is a valuable parameter to follow polymer surface modifications and to tailor-make biocompatible devices for medical applications.
Inner Surface Treatment of Haemodialysis Membranes
The zeta potential measurement assists in the improvement of the biocompatibility of haemodialysis membranes.
Tuning of Solid Surface Properties by Self-Assembled Monolayers
The zeta potential measurement assists in tailoring the properties of technical and biomedical surfaces using self-assembled monolayers.
Correlating Viscosity and Particle Size Parameters determined by Small Angle X-Ray Scattering Studies of concentrated MAb Solutions
Monoclonal antibodies (MAb) solutions are a major class of biopharmaceuticals with various applications. However, challenges like a high viscosity at the required MAb concentrations need to be addressed at an early development stage.
Studying the Effect of Tear Fluid on Contact Lenses
The zeta potential indicates changes in the surface chemistry of contact lenses upon wearing and is thus suited to study biocompatible surface coatings.
Size and shape of gold nanoparticles in toluene via SAXS
A solution of colloidal gold nanoparticles was characterized for size and shape by the SAXSpace system.
Studying the kinetics of transport processes shown by nanostructured emulsion droplets to ensure successful drug delivery control
When investigating the potential application of micelles as vehicles for the delivery of active ingredients, stability determinations have to be complemented by studying the micelles' internal structure. Since their internal structure depends on their composition, time-resolved SAXS experiments can be used to monitor the structure changes involved in the transport kinetics of nanostructured emulsion droplets, such as the uptake and release of active ingredients like vitamins and enzymes. The main requirements for successful time-resolved SAXS experiments, high intensity along with high resolution, are met by SAXSpace, which delivers high-quality data at short measurement times.
Researching the elastic and mechanical properties of hydrogels
Many hydrogels are considered to be potential candidates for replacement, regeneration, scaffolds, or as growth substrates for soft tissues in the human body. Recent research (Discher et al., 2005; Moers et al., 2013) has shown that the elasticity of the substrate can significantly influence the homeostasis of tissues, which is important for tissue regeneration. Determination of the elastic and mechanical properties of biological substrates is therefore of great interest. Elastic modulus and creep properties can easily be studied with Anton Paar’s Bioindenter as the instrument is compatible with testing in liquids and can operate under various loading modes. The time-dependent response of hydrogels can also be studied.
Determining the intrinsic viscosity and molar mass
The biological effects of hyaluronan can be tailored for pharmaceutical purposes by changing its molar mass. Hyaluronan has a short half-life in the body; for some purposes, e.g. in plastic surgery, its stability has to be increased by increasing the molecular mass. The Lovis 2000 M/ME microviscometer determines the viscosity of dissolved hyaluronan. The intrinsic viscosity is automatically calculated from the relative viscosity of hyaluronan and its solvent. The intrinsic viscosity provides the same information content as the molar mass. Nevertheless, the molar mass can also be calculated according to the Mark-Houwink equation and read directly off the screen. If required, the shear rate dependency can be eliminated by performing an automated zero shear rate extrapolation.
Investigating surface properties to ensure biocompatibility of implants
Surface properties such as the surface charge indicate a surface’s biocompatibility. Depending on the application of a biomaterial, a surface with high or low affinity to proteins is required. In tissue engineering and regenerative medicine, protein adsorption induces the integration of implants while in other cases high protein adhesion may lead to thrombus formation. Zeta potential analysis using Anton Paar’s SurPASS provides information on the surface charge at physiological pH and the chemistry of surface functional groups. The sign and magnitude of the zeta potential are used to estimate the electrostatic interaction between the solid surface and a charged species dissolved in the surrounding aqueous solution.