to resolve handling problem of nanoparticles, due to their small size, a new methodology of electro-spraying and freeze-drying was developed for colloidal nanoparticles of silica and titania to transform them to solid macro-scale nanoparticle assemblies.  the assemblies were then redispersed in an aqueous system to investigate the effect of formulation of original solutions and the process para...

Supercritical carbon dioxide has replaced many liquid organic solvents in industry due to its tunable solvent properties, environmental friendliness, and easily achievable critical parameters. The unique properties of supercritical fluids in general, such as gas-like diffusivity and zero surface tension, make them particularly applicable to the field of conservation. This presentation reports o...

1 Department of Pharmaceutics, Seven Hills College of Pharmacy, Tirupathi, AP, India. 2 Faculty, Department of Pharmaceutics, OMER EL MUKHTAR University, Al-Beida, Libiya 3 Department of Pharmaceutical Chemistry, Shankarlingam Bhuvaneswari College of Pharmacy, Sivakasi, TN,India 4 Principal, Seven Hills College of Pharmacy, Tirupathi, AP, India 5 Research Director, Seven Hills College of Pharma...

It is possible to stabilize foot-and-mouth disease antiserum by either freeze-drying in bottles or air-drying on paper for periods of 7 months.

UNLABELLED BACKGROUND A natural carbohydrate biopolymer was extracted from the agricultural biomass waste (durian seed). Subsequently, the crude biopolymer was purified by using the saturated barium hydroxide to minimize the impurities. Finally, the effect of different drying techniques on the flow characteristics and functional properties of the purified biopolymer was investigated. The pre...

Much effort has been devoted recently to means of conserving viability by reducing the activity of cells through the withdrawal of water. Chief of these methods of desiccation is the lyophil or freeze-drying technique. The rationale behind freeze-drying is the supposition that water can be removed from a cell without causing death if the water is removed directly from the frozen state-that is, ...

Freeze-drying for electron microscopy is one of the most successful methods for avoiding specimen distortion caused by drying of liquid solutions in air. It has been calculated that the surface forces of receding droplets subject small specimens to pressures of the order of tons per square inch (1). In freeze-drying, an aqueous solution of the specimen is rapidly frozen and the ice allowed to s...

The viability of Lactobacillus bulgaricus in freeze-drying is of significant commercial interest to dairy industries. In the study, L.bulgaricus demonstrated a significantly improved (p < 0.05) survival rate during freeze-drying when subjected to a pre-stressed period under the conditions of 2% (w/v) NaCl for 2 h in the late growth phase. The main energy source for the life activity of lactic a...

INTRODUCTION Nanoparticulate carrier system was used to target, improve bioavailability, control the drug release and avoid the enzymatic degradation. Among the nanoparticulates i.e. SLNs are attractive and face the challenges of stability. The major obstacle with the SLNs was agglomeration in order to avoid this problem freeze drying was attempted. In this laboratory process which involves fre...