A5089070032- Membrane Separation Technologies
- Membrane Separation and Gas Transport
- Membrane-based Ion Separation Techniques
- Innovative Microfluidic and Catalytic Techniques Innovation
- Extraction and Separation Processes
- Fuel Cells and Related Materials
- Wastewater Treatment and Nitrogen Removal
- Mine drainage and remediation techniques
- Surface Modification and Superhydrophobicity
- Enzyme Catalysis and Immobilization
- Odor and Emission Control Technologies
- Chemical Synthesis and Analysis
- Electrohydrodynamics and Fluid Dynamics
- Advanced biosensing and bioanalysis techniques
- Microbial Metabolites in Food Biotechnology
- Crystallization and Solubility Studies
- Anaerobic Digestion and Biogas Production
- Nanomaterials for catalytic reactions
- Microfluidic and Capillary Electrophoresis Applications
- Microbial metabolism and enzyme function
- Microbial Metabolic Engineering and Bioproduction
- Industrial Gas Emission Control
- Microbial bioremediation and biosurfactants
- Polymer Science and PVC
- Water Treatment and Disinfection
Queen Mary University of London
2024-2025
Imperial College London
2013-2024
Transnational Press London
2016-2020
Kensington Health
2016
Imperial Valley College
2015
Bulgarian Academy of Sciences
1994-2001
Institute of Chemical Engineering
1984-2001
Institute of Polymers
1989
If continuous processing is to be employed in pharmaceutical production, it essential that crystallization techniques can meet the purity and yield achievable current batch processes. Recycling of mother liquor steady state MSMPR crystallizations allows equivalent equilibrium process met or exceeded. However, extent which increased limited by buildup impurities within system. In this study, an organic solvent nanofiltration membrane was used preferentially concentrate API (deferasirox, M.W....
In this research paper we report two ways of controlling the molecular weight cut-off (MWCO) PEEK membranes prepared via phase inversion and subsequent drying. The methods explored were change polymer concentration in dope solution – 8 wt%, 10 wt% 12 variation solvent filling pores prior to drying e.g. water, methanol, acetone, tetrahydrofuran n-heptane. results show that it is possible vary MWCO from 295 g mol−1 1400 by varying these parameters. A statistical analysis based on a genetic...
A mixed culture of sulfate-reducing bacteria containing the species Desulfovibrio desulfuricans was used to study sulfate-reduction stoichiometry and kinetics using ethanol as carbon source. Growth yield lower, were slower, for compared lactate. Ethanol converted into acetate no significant dioxide production observed. mathematical model growth on developed, simulations experiments carried out model. The pH variation due sulfate reduction, hydrogen sulfide removal by nitrogen sparging,...
A liquid-solid fluidized bed reactor was used to carry out sulfate reduction with a mixed culture of reducing bacteria. The bacteria were immobilized on porous glass beads. Stable operation these biofilm-coated beads possible. low specific gravity the hydrated allowed at liquid recirculation rates. H(2)S level in controlled by N(2) sparging, which also served as location for feed and removal. Ethanol electron donor/carbon source Sulfate rates up 6.33 g L(-1) day(-1) attained hydraulic...
New molecular-weight-enlarged metathesis catalysts, which bear polyhedral oligomeric silsesquioxane (POSS) tags, were synthesized and characterized. The catalysts can be recovered from the reaction mixture by using nanofiltration techniques reused. It was found that membranes Starmem 228 PuraMem 280 successfully separate catalyst post-reaction mixtures to below 3 ppm. application of these POSS-tagged in a continuous also investigated.
In this work it is shown that PEEK membranes are “green” from the production point of view when compared with commercial polyimide (PI) based organic solvent nanofiltration (OSN) membranes.
Abstract For the utilization of each lignin fraction in liquors, development separation strategies to fractionate streams by molecular weight ranges constitutes a timely challenge be tackled. Herein, membrane filtration was applied refining obtained from lignin‐first biorefining process based on H‐transfer reactions catalyzed Raney Ni, using 2‐PrOH as part extraction liquor and an H‐donor. A two‐stage cascade considered separate concentrate monophenol‐rich liquor. Building results, economic...
A new class of organic solvent nanofiltration (OSN) membranes has been fabricated by assembling nanosized polymer particles with methacrylate moieties onto the surface cross-linked polyimide ultrafiltration support membranes. Multiple layers these nanoparticles create a separation film functionally similar to top layer an asymmetric OSN membrane. Nanoscale interstitial spaces formed between serve as permeation channels. In principle, manipulating size can be used control dimensions through...
Abstract Herein, a one‐pot liquid phase peptide synthesis featuring iterative addition of amino acids to “nanostar” support, with organic solvent nanofiltration (OSN) for isolation the growing after each cycle is reported. A consists coupling, Fmoc removal, then sieving out reaction by‐products via in reactor‐separator, or synthesizer apparatus where no material transfers are required between cycles. The three‐armed and monodisperse nanostar facilitates both efficient real‐time monitoring...
This communication reports a new technology platform that advantageously combines organic solvent nanofiltration (a newly emerging capable of molecular separations in solvents) with solution phase peptide synthesis—Membrane Enhanced Peptide Synthesis (MEPS).
Solid-phase synthesis is the dominant paradigm for peptide synthesis, used ubiquitously from discovery to production scale. However, solid-phase approach produces coupling steps that may not be quantitative, introducing errors in amino acid sequences. It also entails an excess of reagents overcome mass transfer limitations and restrictions on solvent, chemistry, protecting groups. Organic solvent nanofiltration (OSN) a newly emerging technology capable molecular separations organic solvents....
Active pharmaceutical ingredients are often synthesized by multiple reactions involving organometallic catalysts, and it is necessary for substrates to pass through several reaction separation steps during processing. Flow chemistry an attractive solution multistep synthesis, but between reactions, streams require workup purification using techniques such as liquid–liquid extraction, gas–liquid separation, distillation, others. Organic solvent nanofiltration (OSN) emerging technology...