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Copyright © 2008 Jayesh Bellare; Designed by Sagar & Manu. All rights reserved.
Microscopy
Optical:
Electron:
Probe:
Scattering
Flow Cytometry
Others
Others
Surface area and porosity are two important physical properties which determine the quality and utility of many materials. Differences in the surface area and porosity of particles within the material, which otherwise may have the same physical dimensions, can greatly influence its performance characteristics.
Key features: Micromeritics ASAP 2020
Key features: Micromeritics ASAP 2020
- Two independent vacuum systems: one for sample analysis and one for sample preparation.
- SS, temperature-monitored analysis manifolds: optimal internal volumes and superior vacuum performance.
- Single high-quality, stable, low-noise transducer system.
- Water Vapor Adsorption.
- Analyses: Single- and Multipoint BET (Brunauer, Emmett, and Teller) surface area, Langmuir surface area, Temkin and Freundlich isotherm analyses, Pore area distributions (BJH method), Pore volume, MP method, t-Plot and alpha-s Plot, f-Ratio plots, Heat of Adsorption.
Cryogriding or freeze milling is a sizing process which finds applications in DNA Extraction, Trace Element Analysis, Screening of Asbestos-Containing Materials (ACMs), Pharmaceutical Analysis and Drug Testing, Recovery of Volatile Compounds, Mineralogical Studies, Medical Research among others. It employs liquid nitrogen for chilling which has two important consequences for sample preparation: it embrittles flexible samples so they can be pulverized by impact milling, and it preserves the structural and compositional aspects usually damaged or lost during room temperature pulverizing.
Key features: Spex Freezer Mill 6850
Key features: Spex Freezer Mill 6850
- Large cryogenic impact grinder with self-contained liquid nitrogen tub and insulated case.
- Equipped with speed control, programmable timer, and safety interlock.
- Grinds samples in the 1.0 gram to 100.0 gram range.
Lyophilization, also called freeze-drying, is a method of drying that significantly reduces sample damage and loss of activity associated with conventional drying processes. Since it is based on sublimation of the solvent, so it is especially suited for heat-labile samples. Apart from long-term preservation, samples may be freeze- dried to achieve a porous, friable structure.
Key features: Martin Christ GmbHEI Alpha 1-2; Central facility
Key features: Martin Christ GmbHEI Alpha 1-2; Central facility
- Ice condenser: 2.5 kg; 2 kg/24 h; -55°C.
- Max. ambient temperature: climate category SN, +10°C to +32°C .
- Shelf temperature when pre-freezing inside the ice condenser chamber: -25°C
- Max. shelf surface area when drying outside the ice condenser chamber: 3 shelves; ø 200 mm; ~ 920 cm2.
A rotary evaporator (rotavap) is a high performance single stage distillation system, ideally used for stripping solvent from reaction mass or other laboratory samples, which utilizes vacuum and higher surface areas to achieve the evaporation.
Key features: Equitron Roteva
Key features: Equitron Roteva
- Temperature range: 10-180°C
- Digital temperature controller with accuracy of ±1°C.
- RPM upto 270 for 1L evaporating flask.
- Free motorized lift
- Suitable for water as well as oil.
UV/Vis spectroscopy is routinely used in the quantitative determination of solutions of transition metal ions and highly conjugated organic compunds. Based on Beer-Lambert law, UV/Vis spectroscopy can be used to determine the concentration of a solution.
Key features: Nicolet Evolution 300
Key features: Nicolet Evolution 300
- Wavelength Range: 190 to 1100 nm
- Photometric Range: - 3.0 to 6.0 A
- Detector: Photodiode
- Bandwidth Variable: 0.5, 1.0, 1.5, 2.0, 4.0 nm
- Scan Speeds: 1 to 3800 nm/min
- Monochromator Drive Speed: 4000 nm/min
- Wavelength Accuracy: 1 ± 0.3 nm (± 0.1 nm)
Electrospinning is a method for producing nanofibers. When the electrical force at the surface of a solution overcomes the surface tension, a charged jets is ejected. The jet extends in a straight line for a certain distance, and then bends and follows a looping and spiraling path. The electrical forces elongate the jet thousands or even millions of times and the jet becomes very thin. Ultimately the solvent evaporates, or the melt solidifies. The resulting, very long, nanofiber collects on an electrically grounded metal sheet.
Typical applications of the process include filtration of submicron particles in separation industries and biomedical applications, such as wound dressing in medical industry, tissue engineering scaffolds and artificial blood vessels.
Typical applications of the process include filtration of submicron particles in separation industries and biomedical applications, such as wound dressing in medical industry, tissue engineering scaffolds and artificial blood vessels.
The JB group
The multi-disciplinary nature of our work necessitates the use of diverse equipments and instruments. Our work draws heavily from the listed facilities, some of which are collaborative in nature.