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96 well black tissue culture plates

Manufactured by Corning
Sourced in United States

The 96-well black tissue culture plates are a standard laboratory equipment used for various cell-based assays and experiments. These plates provide a consistent and controlled environment for culturing cells, allowing for efficient and reproducible results. The black color of the plates helps to minimize background fluorescence, making them well-suited for applications that involve fluorescent or luminescent readouts.

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5 protocols using 96 well black tissue culture plates

1

SARS-CoV Antiviral Replication and Cytotoxicity Assays

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Antiviral replication with Urbani and Toronto-2 strains of live SARS-CoV, as well as cytotoxicity of selected compounds was investigated using three in vitro assays, cytopathic effect (CPE) inhibition assay, neutral red (NR) uptake assay, and virus yield reduction assay as described in Kumaki et al. (2011) (link).
For cell viability assays, cells were seeded in 96-well black tissue culture plates (Costar) and treated with compounds with final concentration of 1% DMSO. The quantity of the ATP present in metabolically active cells was determined with CellTiter-Glo® luminescent cell viability assay kits (Promega, Madison, WI).
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2

Antiviral Screening of SARS-CoV Strains

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Antiviral replication with Urbani and Toronto-2 strains of live SARS-CoV, as well as cytotoxicity of selected compounds was investigated using three in vitro assays, cytopathic effect (CPE) inhibition assay, neutral red (NR) uptake assay, and virus yield reduction assay as described in [22 (link)].
For cell viability assays, cells were seeded in 96-well black tissue culture plates (Costar) coated with compounds with final concentration of 1% DMSO. The quantity of the ATP present in metabolically active cells was determined with CellTiter-Glo® luminescent cell viability assay kits (Promega, Madison, WI).
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3

Evaluating RPE Cell-Derived Factors on Retinal Cell Viability

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Live and dead assay was performed as previously described by Léveillard et al.7 (link) Briefly, RPE cells transduced with GFP, OTX2, and OTX2L were incubated for 1 week with CDM. Conditioned medium from RPE-transduced cells was collected and was added to primary retina cultures from chicken embryos (stage 29), prepared as described earlier,67 (link) in 96-well black tissue-culture plates (Corning) and incubated for 7 days at 37°C in 5% CO2. 14 negative control wells (conditioned medium) were also included. We used a live and dead assay (Molecular Probes) to monitor cell viability. A blind protocol was employed such that the person performing the live and dead analysis did not know which supernatant came from RPE-GFP- or RPE-OTX2-transduced cells. For acquisition and cell counting, we developed an algorithm based on the Metamorph software (Universal Imaging). We read plates under an inverted fluorescence microscope (TE 200, Nikon) equipped with a mercury epifluorescent lamp with two excitation filters (485 and 520 nm), two emission filters (520 and 635 nm), a 10× objective, a computer-driven motorized scanning stage (Märzhäuser), and a CCD camera. For the assay, we compared numbers of live cells with the mean number of live cells in the negative controls. Each assay was repeated three independent times with four replicates for each condition.
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4

Ethidium Bromide Efflux Assay for S. aureus

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The EtBr efflux inhibition assay was performed by a method described earlier (12 (link), 14 (link)). The S. aureus SA-1199B was grown at 37°C until the OD600nm reached 1.0. The culture was pelleted for 10 min at 16,060 × g, washed twice with Phosphate buffered saline (PBS; pH 7.4), and diluted to OD600 of 0.4 in PBS. Further, the bacterial suspension was loaded with EtBr (4 μg/mL), treated with compounds at sub-inhibitory concentrations (1/4 × MIC), then incubated at 25° C for 60 min to allow maximum accumulation to occur. After maximum accumulation occurred, bacteria were pelleted for 15 min at 16,060 × g and then resuspended in PBS. Finally, the aliquots were loaded to 96-well black tissue culture plates (Corning, U.S.). The fluorescence was recorded for 30 min (6 min time interval) at excitation and emission wavelength of 530 nm and 600 nm, respectively, in a microplate reader (BioTek, USA). The change in fluorescence was also determined in the presence and absence of 0.4% glucose.
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5

Ethidium Bromide Efflux Assay for S. aureus

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The EtBr efflux inhibition assay was performed by a method described earlier (12 (link), 14 (link)). The S. aureus SA-1199B was grown at 37°C until the OD600nm reached 1.0. The culture was pelleted for 10 min at 16,060 × g, washed twice with Phosphate buffered saline (PBS; pH 7.4), and diluted to OD600 of 0.4 in PBS. Further, the bacterial suspension was loaded with EtBr (4 μg/mL), treated with compounds at sub-inhibitory concentrations (1/4 × MIC), then incubated at 25° C for 60 min to allow maximum accumulation to occur. After maximum accumulation occurred, bacteria were pelleted for 15 min at 16,060 × g and then resuspended in PBS. Finally, the aliquots were loaded to 96-well black tissue culture plates (Corning, U.S.). The fluorescence was recorded for 30 min (6 min time interval) at excitation and emission wavelength of 530 nm and 600 nm, respectively, in a microplate reader (BioTek, USA). The change in fluorescence was also determined in the presence and absence of 0.4% glucose.
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