Results 101 to 110 of about 306,860 (343)

Genotoxicity and Cytotoxicity Exerted by Pesticides in Different Biotic Matrices-An Overview of More Than a Decade of Experimental Evaluation [PDF]

, 2014
Agrochemicals represent one of the most important sources of environmental pollution. Although attempts to reduce agrochemical use through organic agricultural practices and the use of other technologies to control pests continue, the problem is still
Larramendy, Marcelo Luis, Nikoloff, Noelia, Ruiz de Arcaute, Celeste, Soloneski, Sonia Maria Elsa   +3 more
core   +2 more sources

Impact of bioreactor process parameters and yeast biomass on Raman spectra

Biotechnology Progress, EarlyView.
Abstract In‐line Raman spectroscopy combined with chemometric modeling is a valuable process analytical technology (PAT) providing real‐time quantitative information on cell culture compounds. Considering that compound quantification through chemometric models depends on pre‐processing to maintain consistent changes in intensity at certain wavenumbers,
Maarten Klaverdijk, Mehrab Nemati, Marcel Ottens, Marieke E. Klijn   +3 more
wiley   +1 more source

Sex chromosome positions in human interphase nuclei as studied by in situ hybridization with chromosome specific DNA probes [PDF]

, 1984
Two cloned repetitive DNA probes, pXBR and CY1, which bind preferentially to specific regions of the human X and Y chromosome, respectively, were used to study the distribution of the sex chromosomes in human lymphocyte nuclei by in situ hybridization ...
C. R. M�ller, CR M�ller, DE Comings, F Pera, F Vogel, G. A. Rappold, GA Rappold, GA Rappold, H-D Hager, H. D. Hager, JR Gosden, K. E. Davies, L Avivi, L Hens, L Hens, LM Kunkel, M Schmid, M Spaeter, MD Bennett, ML Law, P Goodfellow, PL Pearson, PS Gerhard, R Gagn�, R Lewin, T Cremer, T Cremer, T Yang, T. Cremer, T. Yang, V Kanda   +30 more
core   +1 more source

Harvesting AAV by tangential flow filtration using reverse asymmetric membranes

Biotechnology Progress, EarlyView.
Abstract Efficient bioreactor clarification for harvesting virus particles is often challenging. Tangential flow filtration is attractive as it can be easily adapted for batch and perfusion operations. Here the feasibility of using reverse asymmetric hollow fiber membranes, where the more open support structure faces the feed stream, has been ...
Xiaolei Hao, Ronny Horax, Xianghong Qian, April Wheeler, Hironobu Shirataki, S. Ranil Wickramasinghe   +5 more
wiley   +1 more source

Enhancing rapid Protein A performance in monoclonal antibody processing: Anion exchange chromatographic clarification

Biotechnology Progress, EarlyView.
Abstract Clarification fidelity, including reduction of insoluble and soluble contaminants, has been demonstrated to significantly affect the performance and robustness of the Protein A capture chromatography step during the purification of monoclonal antibodies (mAb) and their derivatives expressed in CHO cell cultures.
Andrew Vail, David Chau, Jennifer Heitkamp, Alexei Voloshin   +3 more
wiley   +1 more source

Induction of chromosome damage by ultraviolet light and caffeine: Correlation of cytogenetic evaluation and flow karyotype [PDF]

, 1982
Asynchrononously growing cells of a M3-1 Chinese hamster line were ultraviolet (UV) irradiated ( = 254 nm) with UV fluences up to 7.5 J/m2. After irradiation, cells were incubated with or without 2 mM caffeine for 20 hr, then mitotic cells were selected ...
Carrano, Carrano, Carrano, Chu, Cremer, Cremer, Cremer, Cremer, Gray, Gray, Gray, Horan, Kato, Kihlman, Langlois, Lovelace, Moore, Nilsson, Otto, Roberts, Yu   +20 more
core   +1 more source

Optimizing clarification processes in biopharmaceutical manufacturing through quality by design: Strategies, implications, and future prospects

Biotechnology Progress, EarlyView.
Abstract Biopharmaceutical manufacturing processes in which the product of interest is extracellularly expressed typically employ a clarification step following cell culture or fermentation. During clarification, crude cell culture fluid or fermentation broth is processed to remove insoluble solids, cells, debris, and other particulates, with the ...
Kyeong‐won Yeop, Hyun‐ju Nam, Chang‐jae Shim, So‐mi Yang, Hyo‐won Kim, Cheon Ik Park, Subhasis Banerjee, Yanglin Mok   +7 more
wiley   +1 more source

A tetraspecific VHH-based neutralizing antibody modifies disease outcome in three animal models of Clostridium difficile infection [PDF]

, 2016
Clostridium difficile infection (CDI), a leading cause of nosocomial infection, is a serious disease in North America, Europe, and Asia. CDI varies greatly from asymptomatic carriage to life-threatening diarrhea, toxic megacolon, and toxemia.
Beamer, Gillian, Curiel, David T, Debatis, Michele, Dmitriev, Igor P, Kashentseva, Elena A, Kim, Hyeun Bum, Schmidt, Diane J, Shoemaker, Charles B, Steele, Jennifer A, Sun, Xingmin, Tremblay, Jacqueline M, Tzipori, Saul, Wang, Yaunkai   +12 more
core   +2 more sources

Scale‐up of a monoclonal antibody CHO fed‐batch production in stirred tank bioreactors: Effect of hydrodynamic conditions and feeding regimen

Biotechnology Progress, EarlyView.
Abstract Key hydrodynamic‐related parameters such as volumetric power input (P/V), impeller configuration, aeration strategy, and maximum gas sparge rate, as well as an appropriate feeding strategy, must be carefully selected to improve production yields in bioreactor.
Lucas Lemire, Sebastian‐Juan Reyes, Yves Durocher, Robert Voyer, Olivier Henry, Phuong Lan Pham   +5 more
wiley   +1 more source

The administration of multipotent stromal cells at precancerous stage precludes tumor growth and epithelial dedifferentiation of oral squamous cell carcinoma [PDF]

, 2017
Multipotent stromal cells (MSCs) are envisioned as a powerful therapeutic tool. As they home into tumors, secrete trophic and vasculogenic factors, and suppress immune response their role in carcinogenesis is a matter of controversy.
Arango Rodríguez, Martha, Bruna, Flavia Alejandra, Conget, Paulette, Espinoza, Iris, Plaza, Anita   +4 more
core   +1 more source