ELISA Kits
ELISA (Enzyme linked immunosorbent assay) Kits are ideal for the quantification of target antigens in tissue extracts, serum, and cell culture. We offer the most published, highly rated, and trusted R&D Systems ELISA Kits on the market, known for their superior quality, high sensitivity, and reproducibility. Novus has Quantikine ELISA Kits for measuring intra- and extracellular proteins, in addition to DuoSet ELISA Kits which contain matched antibody pairs and provide design flexibility. Our ELISA Kits are available in a range of assay formats including indirect, sandwich, and competitive ELISAs and, depending on your research needs, are suitable for either colorimetric or chemiluminescent detection. Browse our catalog of 5000+ ELISA Kits by searching for specific proteins or targets, species reactivity, kit types, reviews, and publications to choose the best product to meet your research goals.
Alternate Names for ELISA Kits
6138 Results for ""
![N/A IL-6 [HRP]](http://images.novusbio.com/fullsize2/IL6_D6050_ELISA_2663.jpg "N/A IL-6 [HRP]")
![N/A IL-6 [HRP]](http://images.novusbio.com/fullsize2/IL6_D6050_ELISA_2664.jpg)
![N/A IL-6 [HRP]](http://images.novusbio.com/fullsize2/IL6_D6050_ELISA_2665.jpg)
![N/A IL-6 [HRP]](http://images.novusbio.com/fullsize2/IL6_D6050_ELISA_555.jpg)
![N/A IL-6 [HRP]](http://images.novusbio.com/fullsize2/IL6_D6050_ELISA_556.jpg)
![N/A IL-6 [HRP]](http://images.novusbio.com/fullsize2/IL6_D6050_ELISA_20.jpg)
![Toll-like receptor 4 (TLR4) silencing decreases endogenous levels of pro-inflammatory cytokines. a Effect of TLR2/4 silencing in breast cancer cells transfected with negative control (nc) siRNA, or siRNA directed against TLR2 mRNA (si#1 and si#2) or TLR4 mRNA (si#1 and si#2) was analyzed using quantitative real-time PCR; ***P <0.001 (analysis of variance (ANOVA)). b IL-6 (left) and IL-8 (right) ELISA on supernatants from MDA-MB-231 breast cancer cells transfected with nc siRNA, or siRNA directed against TLR2 mRNA (si#1 and si#2) or TLR4 mRNA (si#1 and si#2); n = 4. Error bars standard error of the mean (SEM); *P <0.05, **P <0.01, ***P <0.001 (ANOVA). c Boyden chamber migration assays. Migration of primary human myeloid cells towards supernatants from different cell lines indicated. Human primary peripheral blood mononuclear cells were isolated as previously described [48] and allowed to migrate through a Costar Transwell® Permeable Support 8.0-μm 24-well plate (Corning) to the supernatants of breast cancer supernatants cultured under serum-free conditions. Percentage of migrated CD11b+ cells was analyzed using a flow cytometer and CD11b-APC antibodies (BD Sciences); n = 4. Error bars SEM; *P <0.05, **P <0.01, ***P <0.001 (ANOVA). d Matrigel invasion assays. Invasion of lipopolysaccharide (LPS)-stimulated/un-stimulated MDA-MB-231 cells into matrigel invasion chambers (BD Sciences) as indicated: 25 × 103 MDA-MB-231 cells were stimulated or not with LPS and allowed to invade from 72 h. Amount of invaded cells was analyzed using crystal violet staining and manual counting in four separate experiments; n = 4. Error bars SEM; *P <0.05, **P <0.01, ***P <0.001 (Student’s t test) Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/26392082), licensed under a CC-BY license. Not internally tested by R&D Systems.](http://images.novusbio.com/fullsize/d6050_human-il-6-quantikine-elisa-kit-22820241721198.jpg)
![N/A VEGF [HRP]](http://images.novusbio.com/fullsize2/DATA_VEGF_DVE00_ELISA_871.jpg "N/A VEGF [HRP]")
![N/A VEGF [HRP]](http://images.novusbio.com/fullsize2/DATA_VEGF_DVE00_ELISA_872.jpg)
![N/A VEGF [HRP]](http://images.novusbio.com/fullsize2/VEGF_DVE00_ELISA_208.jpg)
![N/A IL-6 [Biotin]](http://images.novusbio.com/fullsize2/DATA_IL6_DY206_ELISA_1760.jpg "N/A IL-6 [Biotin]")
![N/A TNF-alpha [HRP]](http://images.novusbio.com/fullsize2/dta00d_human-tnf-alpha-quantikine-pharmpak-50-plates-2672021102137.jpg "N/A TNF-alpha [HRP]")
![N/A TNF-alpha [HRP]](http://images.novusbio.com/fullsize2/dta00d_human-tnf-alpha-quantikine-pharmpak-50-plates-2672021102236.jpg)
![N/A IL-6 [HRP]](http://images.novusbio.com/fullsize2/hs600c_human-il-6-quantikine-hs-sixpak-6-plates-148202014493.jpg "N/A IL-6 [HRP]")
![N/A IL-6 [HRP]](http://images.novusbio.com/fullsize2/hs600c_human-il-6-quantikine-hs-sixpak-6-plates-1482020145254.jpg)
![N/A TNF-alpha [Biotin]](http://images.novusbio.com/fullsize2/DATA_TNFalpha_DY210_ELISA_1766.jpg "N/A TNF-alpha [Biotin]")
![N/A CXCL8/IL-8 [Biotin]](http://images.novusbio.com/fullsize2/DATA_IL8_DY208_ELISA_2307.jpg "N/A CXCL8/IL-8 [Biotin]")
![N/A CXCL8/IL-8 [HRP]](http://images.novusbio.com/fullsize2/DATA_CXCL8_IL8_D8050_ELISA_557.jpg "N/A CXCL8/IL-8 [HRP]")
![N/A CXCL8/IL-8 [HRP]](http://images.novusbio.com/fullsize2/DATA_CXCL8_IL8_D8050_ELISA_558.jpg)
![N/A CXCL8/IL-8 [HRP]](http://images.novusbio.com/fullsize2/CXCL8_D8000C_ELISA_378.jpg)
![Toll-like receptor 4 (TLR4) silencing decreases endogenous levels of pro-inflammatory cytokines. a Effect of TLR2/4 silencing in breast cancer cells transfected with negative control (nc) siRNA, or siRNA directed against TLR2 mRNA (si#1 and si#2) or TLR4 mRNA (si#1 and si#2) was analyzed using quantitative real-time PCR; ***P <0.001 (analysis of variance (ANOVA)). b IL-6 (left) and IL-8 (right) ELISA on supernatants from MDA-MB-231 breast cancer cells transfected with nc siRNA, or siRNA directed against TLR2 mRNA (si#1 and si#2) or TLR4 mRNA (si#1 and si#2); n = 4. Error bars standard error of the mean (SEM); *P <0.05, **P <0.01, ***P <0.001 (ANOVA). c Boyden chamber migration assays. Migration of primary human myeloid cells towards supernatants from different cell lines indicated. Human primary peripheral blood mononuclear cells were isolated as previously described [48] and allowed to migrate through a Costar Transwell® Permeable Support 8.0-μm 24-well plate (Corning) to the supernatants of breast cancer supernatants cultured under serum-free conditions. Percentage of migrated CD11b+ cells was analyzed using a flow cytometer and CD11b-APC antibodies (BD Sciences); n = 4. Error bars SEM; *P <0.05, **P <0.01, ***P <0.001 (ANOVA). d Matrigel invasion assays. Invasion of lipopolysaccharide (LPS)-stimulated/un-stimulated MDA-MB-231 cells into matrigel invasion chambers (BD Sciences) as indicated: 25 × 103 MDA-MB-231 cells were stimulated or not with LPS and allowed to invade from 72 h. Amount of invaded cells was analyzed using crystal violet staining and manual counting in four separate experiments; n = 4. Error bars SEM; *P <0.05, **P <0.01, ***P <0.001 (Student’s t test) Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/26392082), licensed under a CC-BY license. Not internally tested by R&D Systems.](http://images.novusbio.com/fullsize/d8000c_human-il-8-cxcl8-quantikine-elisa-kit-22820241795613.jpg)
![N/A TGF-beta 1 [HRP]](http://images.novusbio.com/fullsize/elisa/db100c_human-tgf-beta-1-quantikine-sixpak-6-plates-98202194716.jpg "N/A TGF-beta 1 [HRP]")
![N/A TGF-beta 1 [HRP]](http://images.novusbio.com/fullsize/elisa/db100c_human-tgf-beta-1-quantikine-sixpak-6-plates-98202194825.jpg)
![N/A TGF-beta 1 [HRP]](http://images.novusbio.com/fullsize/elisa/db100c_human-tgf-beta-1-quantikine-sixpak-6-plates-98202194957.jpg)
![N/A IL-1 beta/IL-1F2 [Biotin]](http://images.novusbio.com/fullsize2/DATA_IL1_beta_DY201_ELISA_2384.jpg "N/A IL-1 beta/IL-1F2 [Biotin]")
![N/A IL-1 beta/IL-1F2 [HRP]](http://images.novusbio.com/fullsize2/DATA_IL1_beta_DLB50_ELISA_738.jpg "N/A IL-1 beta/IL-1F2 [HRP]")
![N/A IL-1 beta/IL-1F2 [HRP]](http://images.novusbio.com/fullsize2/DATA_IL1_beta_DLB50_ELISA_739.jpg)
![N/A IL-1 beta/IL-1F2 [HRP]](http://images.novusbio.com/fullsize2/IL-1_beta_DLB50_ELISA_129.jpg)
![N/A TNF-alpha [HRP]](http://images.novusbio.com/fullsize2/TNFalpha_HSTA0_ELISA_2666.jpg "N/A TNF-alpha [HRP]")
![N/A TNF-alpha [HRP]](http://images.novusbio.com/fullsize2/TNFalpha_HSTA00D_ELISA_1185.jpg)
![N/A TNF-alpha [HRP]](http://images.novusbio.com/fullsize2/DATA_TNFalpha_HSTA0_ELISA_898.jpg)
![N/A TNF-alpha [HRP]](http://images.novusbio.com/fullsize2/TNF-alpha_HSTA0_ELISA_404.jpg)
![N/A TNF-alpha [HRP]](http://images.novusbio.com/fullsize2/TNFalpha_HSTA0_ELISA_2667.jpg)
![N/A TNF-alpha [HRP]](http://images.novusbio.com/fullsize2/TNFalpha_HSTA00D_ELISA_1186.jpg)
![N/A TNF-alpha [HRP]](http://images.novusbio.com/fullsize2/TNFalpha_HSTA0_ELISA_1171.jpg)
![N/A TNF-alpha [HRP]](http://images.novusbio.com/fullsize2/TNFalpha_HSTA0_ELISA_1172.jpg)