All Outputs (14)

Flexible material formulations for 3D printing of ordered porous beds with applications in bioprocess engineering (2022)
Journal Article
Dimartino, S., Galindo-Rodriguez, G. R., Simon, U., Conti, M., Sarwar, M. S., Athi Narayanan, S. M., Jiang, Q., & Christofi, N. (2022). Flexible material formulations for 3D printing of ordered porous beds with applications in bioprocess engineering. Bioresources and Bioprocessing, 9(1), Article 20. https://doi.org/10.1186/s40643-022-00511-9

Background
3D printing is revolutioning many industrial sectors and has the potential to enhance also the biotechnology and bioprocessing fields. Here, we propose a new flexible material formulation to 3D print support matrices with complex, perfect... Read More about Flexible material formulations for 3D printing of ordered porous beds with applications in bioprocess engineering.

New Nanostructured Carbon Coating Inhibits Bacterial Growth, but Does Not Influence on Animal Cells (2020)
Journal Article
Barkhudarov, E. M., Kossyi, I. A., Anpilov, A. M., Ivashkin, P. I., Artem’ev, K. V., Moryakov, I. V., Misakyan, M. A., Christofi, N., Burmistrov, D. E., Smirnova, V. V., Ivanyuk, V. V., Bunkin, N. F., Kozlov, V. A., Penkov, N. V., Sharapov, M. G., Volkov, M. Y., Sevostyanov, M. A., Lisitsyn, A. B., Semenova, A. A., Rebezov, M. B., & Gudkov, S. V. (2020). New Nanostructured Carbon Coating Inhibits Bacterial Growth, but Does Not Influence on Animal Cells. Nanomaterials, 10(11), Article 2130. https://doi.org/10.3390/nano10112130

An electrospark technology has been developed for obtaining a colloidal solution containing nanosized amorphous carbon. The advantages of the technology are its low cost and high performance. The colloidal solution of nanosized carbon is highly stabl... Read More about New Nanostructured Carbon Coating Inhibits Bacterial Growth, but Does Not Influence on Animal Cells.

UV treatment of chlorophenols in water using uv microwave lamps and Xe/Br excilamp coupled with biodegradation. (2008)
Book Chapter
Christofi, N., Matafonova, G., Batoev, V., Misakyan, M. A., Barkhudarov, E. M., & Kossyi, I. A. (2008). UV treatment of chlorophenols in water using uv microwave lamps and Xe/Br excilamp coupled with biodegradation. In L. N. Robinson (Ed.), Water Resources Research Progress (101-126). Nova Science Publishers Inc

The protection of aquatic ecosystems from artificial or natural pollutants of industrial origin is of paramount importance and technology to reduce or eliminate these from waste streams is urgently needed. Chlorophenols represent a particular group o... Read More about UV treatment of chlorophenols in water using uv microwave lamps and Xe/Br excilamp coupled with biodegradation..

Enhanced desulfurization activity in protoplast transformed Rhodococcus erythropolis (2008)
Journal Article
Etemadifar, Z., Emtiazi, G., & Christofi, N. (2008). Enhanced desulfurization activity in protoplast transformed Rhodococcus erythropolis. American-Eurasian journal of agricultural & environmental sciences, 3, 285-291

Petro-chemically derived fuels may contain a range of organosulfur compounds that produce sulfur dioxide when combusted, culminating in atmospheric and soil pollution. Sulfur constituents include thiophenes, such as Benzothiophene and Dibenzothiaphen... Read More about Enhanced desulfurization activity in protoplast transformed Rhodococcus erythropolis.

UV treatment of microorganisms on artificially-contaminated surfaces using excimer and microwave UV lamps (2008)
Journal Article
Christofi, N., Misakyan, M. A., Matafonova, G., Barkhudarov, E. M., Batoev, V., Kossyi, I. A., & Sharp, J. (2008). UV treatment of microorganisms on artificially-contaminated surfaces using excimer and microwave UV lamps. Chemosphere, 73(5), 717-722. https://doi.org/10.1016/j.chemosphere.2008.06.059

An XeBr excilamp having a peak emission at 283 nm, and microwave UV lamps with peak emissions at 253.7 nm that also generate ozone, have been tested for ability to eradicate high populations of microbial vegetative cells and spores (of bacteria and f... Read More about UV treatment of microorganisms on artificially-contaminated surfaces using excimer and microwave UV lamps.

Degradation of chlorophenols in aqueous media using UV XeBr excilamp in a flow reactor (2008)
Journal Article
Matafonova, G., Christofi, N., Batoev, V., & Sosnin, E. (2008). Degradation of chlorophenols in aqueous media using UV XeBr excilamp in a flow reactor. Chemosphere, 70, 1124-1127. https://doi.org/10.1016/j.chemosphere.2007.08.022

-Chlorophenol (2-CP), 4-chlorophenol (4-CP) and 2,4-dichlorophenol (2,4-DCP) at initial concentrations of 10, 20, 50 and 100 mg l−1 were degraded in aqueous media by direct UV photolysis using dielectric barrier discharge XeBr* excilamp (283 nm) in a... Read More about Degradation of chlorophenols in aqueous media using UV XeBr excilamp in a flow reactor.

Environmental Implications of Nanomaterials (2007)
Book Chapter
Christofi, N., Fernandes, T., & Stone, V. (2007). Environmental Implications of Nanomaterials. In N. A. Monteiro-Riviere, & C. Lang (Eds.), Nanotoxicology : Characterization, Dosing and Health Effects (405-420). CRC Press

Killing bacteria present on surfaces in films or in droplets using microwave UV lamps (2007)
Journal Article
Barkhudarov, E. M., Christofi, N., Kossyi, I. A., Misakyan, M. A., Sharp, J., & Taktakhisvili, I. M. (2008). Killing bacteria present on surfaces in films or in droplets using microwave UV lamps. World Journal of Microbiology and Biotechnology, 24(6), 761-769. https://doi.org/10.1007/s11274-007-9536-y

The killing of bacteria on surfaces by two types
of UV sources generated by microwave radiation is
described. In both cases, UV radiation is produced by gasdischarge
electrodeless lamps (Ar/Hg) excited by microwaves
generated by a power supply fr... Read More about Killing bacteria present on surfaces in films or in droplets using microwave UV lamps.

Accute toxicity of linear alkylbenzene to Caenorhabditis elegans Maupas, 1900 in soil. (2007)
Journal Article
Johnson, S. J., Castan, M., Proudfoot, L., Barry, D. A., & Christofi, N. (2007). Accute toxicity of linear alkylbenzene to Caenorhabditis elegans Maupas, 1900 in soil. Bulletin of Environmental Contamination and Toxicology, 79, 41-44. doi:10.1007/s00128-007-9195-6

Linear alkybenzene (LAB) is a light non-aqueous phase liquid (LNAPL) whose primary use is as a precursor in the manufacture of linear alkylbenzene sulphonate (LAS) detergents. LAB is also used as insulating oil in underground electricity transmission... Read More about Accute toxicity of linear alkylbenzene to Caenorhabditis elegans Maupas, 1900 in soil..

Anaerobic biodegradation of linear alkylbenzene: Isomeric ratio as a monitoring tool. (2007)
Journal Article
Johnson, S. J., Barry, D. A., & Christofi, N. (2007). Anaerobic biodegradation of linear alkylbenzene: Isomeric ratio as a monitoring tool. Land Contamination and Reclamation, 15, 235-241. doi:10.2462/09670513.858

Linear alkylbenzenes (LABs) are common environmental contaminants associated with a range of industrial and domestic activities. Although natural environments receiving LABs may exhibit a range of redox conditions, until now only aerobic biodegradati... Read More about Anaerobic biodegradation of linear alkylbenzene: Isomeric ratio as a monitoring tool..

A new short-term toxicity assay using Aspergillus awamori with recombinant aequorin gene (2005)
Journal Article
Kozlova, O., Zwinderman, M., & Christofi, N. (2005). A new short-term toxicity assay using Aspergillus awamori with recombinant aequorin gene. BMC Microbiology, 5, Article 40. https://doi.org/10.1186/1471-2180-5-40

Background
Most currently available short-term toxicity assays are based on bacterial cells. Therefore there is a need for novel eukaryotic microbial bioassays that will be relevant to higher eukaryotes such as animals and plants. Ca2+ is a universa... Read More about A new short-term toxicity assay using Aspergillus awamori with recombinant aequorin gene.

Congruence in the performance of model nitrifying activated sludge plants located in Germany, Scotland and Spain (2003)
Journal Article
Christofi, N., Aspichueta, E., Dalzell, D., De la Sota, A., Etxebarria, J., Fernandes, T., Gutierrez, M., Morton, J., Obst, U., & Schmellenkamp, P. (2003). Congruence in the performance of model nitrifying activated sludge plants located in Germany, Scotland and Spain. Water Research, 37(1), 177-187. https://doi.org/10.1016/s0043-1354%2802%2900119-7

A laboratory model nitrifying activated sludge plant treating OECD synthetic sewage was designed and constructed by each of three laboratories in Germany, Scotland and Spain in order to produce a sludge inoculum for 5 rapid toxicity bioassays. The pl... Read More about Congruence in the performance of model nitrifying activated sludge plants located in Germany, Scotland and Spain.

A comparison of five rapid direct toxicity assessment methods to determine toxicity of pollutants to activated sludge (2002)
Journal Article
de la Sota, A., Aspichueta, E., Dalzell, D., Dalzell, D., Alte, S., Aspichueta, E., De la Sota, A., Etxebarria, J., Gutierrez, M., Hoffmann, C., Sales, D., Obst, U., & Christofi, N. (2002). A comparison of five rapid direct toxicity assessment methods to determine toxicity of pollutants to activated sludge. Chemosphere, 47(5), 535-545. https://doi.org/10.1016/s0045-6535%2801%2900331-9

Five rapid direct toxicity assessment methods were used in three European partner countries to determine the toxicity of single toxicants, mixed toxicants and real industrial wastes. The final aim was to protect microbial degradation of organic waste... Read More about A comparison of five rapid direct toxicity assessment methods to determine toxicity of pollutants to activated sludge.

Development of a whole cell biochip for toxicant detection. (2002)
Presentation / Conference Contribution
Waldie, F. L., Binnie, D., & Christofi, N. (2002, April). Development of a whole cell biochip for toxicant detection. Paper presented at XIIth International Symposium on Bioluminescence and Chemiluminescence

In the development of biosensors for ecotoxicity testing it is
desirable to produce a small, portable system that can be used in the field. Toxicity testing using bioluminescence is widely used in the laboratory utilising natural and genetically mod... Read More about Development of a whole cell biochip for toxicant detection..