{"product_id":"xr-nk-cell-expansion-basal-medium-kit","title":"XR NK Cell Expansion Basal Medium Kit","description":"\u003c!--\nSEO TITLE:\nNK Cell Expansion Medium | Serum-Free Human NK Cell Culture Medium\n\nMETA DESCRIPTION:\nXR NK Expansion Media is a serum-free NK cell expansion medium designed for human NK cell culture, feeder-free expansion, PBMC-derived NK cells and CAR-NK research.\n\nRECOMMENDED URL:\n\/products\/nk-cell-expansion-medium\n\nPRIMARY KEYWORDS:\nNK Cell Expansion Medium\nHuman NK Cell Expansion Medium\nSerum-Free NK Cell Culture Medium\nFeeder-Free NK Cell Expansion Medium\nNatural Killer Cell Expansion Medium\n\nSECONDARY KEYWORDS:\nHuman NK Cell Culture\nNK Cell Expansion Reagent\nNK Cell Activation Medium\nPBMC-Derived NK Cell Expansion\nPeripheral Blood NK Cell Expansion\nCD56 Positive NK Cell Expansion\nCD56+CD16+ NK Cells\nCAR-NK Cell Expansion\nEx Vivo NK Cell Expansion\nImmune Cell Culture Medium\n--\u003e\n\u003cp\u003e\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\":\"https:\/\/schema.org\",\n  \"@type\":\"Product\",\n  \"name\":\"XR NK Expansion Media Serum-Free Human NK Cell Expansion Medium\",\n  \"description\":\"Serum-free NK cell expansion medium designed for human NK cell culture, feeder-free expansion workflows, PBMC-derived NK cells and CAR-NK research applications.\",\n  \"brand\":{\n    \"@type\":\"Brand\",\n    \"name\":\"XR\"\n  },\n  \"category\":\"NK Cell Culture Medium\",\n  \"sku\":\"XRNKSFM-1-1000\",\n  \"additionalProperty\":[\n    {\n      \"@type\":\"PropertyValue\",\n      \"name\":\"Product Type\",\n      \"value\":\"Serum-free NK cell expansion medium\"\n    },\n    {\n      \"@type\":\"PropertyValue\",\n      \"name\":\"Application\",\n      \"value\":\"Human NK cell culture and expansion research\"\n    },\n    {\n      \"@type\":\"PropertyValue\",\n      \"name\":\"Storage\",\n      \"value\":\"Basal medium 2-8°C; additive -20°C\"\n    }\n  ]\n}\n\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\":\"https:\/\/schema.org\",\n \"@type\":\"FAQPage\",\n \"mainEntity\":[\n  {\n   \"@type\":\"Question\",\n   \"name\":\"What is NK cell expansion medium?\",\n   \"acceptedAnswer\":{\n    \"@type\":\"Answer\",\n    \"text\":\"NK cell expansion medium is a specialized cell culture medium designed to support the proliferation, maintenance and functional activity of human natural killer cells during in vitro expansion workflows.\"\n   }\n  },\n  {\n   \"@type\":\"Question\",\n   \"name\":\"Is XR NK Expansion Media suitable for feeder-free NK cell expansion?\",\n   \"acceptedAnswer\":{\n    \"@type\":\"Answer\",\n    \"text\":\"XR NK Expansion Media supports NK cell expansion workflows using feeder-free cytokine-based approaches as well as feeder cell-assisted expansion systems.\"\n   }\n  }\n ]\n}\n\u003c\/script\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n\/* 现代专业风全局样式 *\/\n.pdp-container {\nfont-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,Helvetica,Arial,sans-serif;\ncolor:#333333;\nline-height:1.6;\nmax-width:1200px;\nmargin:0 auto;\npadding:15px;\n}\n\n.pdp-container h2{\nfont-size:24px;\ncolor:#0B3C5D;\nborder-bottom:2px solid #328CC1;\npadding-bottom:8px;\nmargin-top:40px;\nmargin-bottom:20px;\nfont-weight:600;\n}\n\n.pdp-container h3{\nfont-size:18px;\ncolor:#1D2731;\nmargin-top:30px;\nmargin-bottom:15px;\nfont-weight:600;\n}\n\n.pdp-container p{\nmargin-bottom:16px;\nfont-size:15px;\ncolor:#4A4A4A;\ntext-align:justify;\n}\n\n.pdp-container ul{\npadding-left:20px;\nmargin-bottom:24px;\n}\n\n.pdp-container li{\nmargin-bottom:10px;\nfont-size:15px;\ncolor:#4A4A4A;\nlist-style-type:square;\n}\n\n\n.pdp-table-responsive{\nwidth:100%;\noverflow-x:auto;\n-webkit-overflow-scrolling:touch;\nmargin:25px 0;\nborder:1px solid #E0E0E0;\nborder-radius:6px;\n}\n\n\n.pdp-table{\nwidth:100%;\nborder-collapse:collapse;\nmin-width:650px;\nbackground:#FFFFFF;\ntext-align:left;\n}\n\n.pdp-table td{\npadding:12px 16px;\nborder-bottom:1px solid #E0E0E0;\nfont-size:14px;\n}\n\n.pdp-table tr:nth-child(even){\nbackground:#F8F9FA;\n}\n\n.pdp-table td strong{\ncolor:#0B3C5D;\n}\n\n\n.pdp-img-container{\nmax-width:600px;\nmargin:24px auto;\npadding:10px;\nborder:1px solid #EEEEEE;\nborder-radius:8px;\nbackground:#FFFFFF;\ntext-align:center;\n}\n\n.pdp-img-container img{\nmax-width:100%;\nheight:auto;\ndisplay:block;\nmargin:auto;\n}\n\n\n.pdp-container details{\nbackground:#F8F9FA;\nborder:1px solid #E0E0E0;\nborder-radius:6px;\nmargin-bottom:12px;\npadding:14px 18px;\n}\n\n.pdp-container summary{\nfont-weight:600;\ncolor:#0B3C5D;\ncursor:pointer;\nfont-size:15px;\n}\n\n\u003c\/style\u003e\n\u003cdiv class=\"pdp-container\"\u003e\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eExpanding human natural killer (NK) cells while maintaining consistent cell quality can be challenging during immune cell research workflows. Researchers often encounter limitations including variable expansion performance, serum-related batch variation, complicated feeder cell preparation, and difficulties maintaining NK cell activity during extended culture periods.\u003c\/p\u003e\n\u003cp\u003eXR NK Expansion Media is a serum-free NK cell expansion medium developed to provide a controlled culture environment for human NK cell growth, maintenance and ex vivo expansion. The optimized formulation contains essential nutrients including amino acids, vitamins and trace elements to support reliable NK cell culture performance while reducing variability associated with serum-containing systems.\u003c\/p\u003e\n\u003cp\u003eDesigned for modern immune cell research applications, XR NK Expansion Media is compatible with both feeder cell-based expansion approaches and feeder-free NK cell expansion workflows. The system supports NK cells derived from peripheral blood, cord blood and induced pluripotent stem cell (iPSC)-derived sources, making it suitable for diverse natural killer cell research and engineered immune cell applications.\u003c\/p\u003e\n\u003cp\u003eFor researchers developing CAR-NK platforms or studying NK cell immunobiology, XR NK Expansion Media provides a simplified culture workflow with reduced media preparation complexity and improved experimental consistency.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"pdp-table-responsive\"\u003e\n\u003ctable class=\"pdp-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eXR NK Expansion Media\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eXRNKSFM-1-1000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSerum-free human NK cell expansion medium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBasal Medium\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1000 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCulture Medium Additive\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 mL (1000×)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.2–7.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFiltration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.2 μm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEndotoxin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤0.1 EU\/mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBacteria Detection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNot detected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFungi Detection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNot detected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBasal medium: 2–8°C\u003cbr\u003eAdditive: -20°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShelf Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResearch Grade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eResearch Use Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSerum-free NK cell culture medium designed for human natural killer cell expansion workflows\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports feeder-free NK cell expansion and cytokine-based activation approaches\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with feeder cell-assisted NK expansion systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOptimized nutrient environment containing amino acids, vitamins and trace elements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports NK cells derived from peripheral blood, cord blood and iPSC sources\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuitable for CAR-NK cell expansion and engineered immune cell research\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSimplified preparation with basal medium and concentrated additive format\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFiltered through a \u0026lt;0.2 μm filtration process for research applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePerformance Data\u003c\/h2\u003e\n\u003ch3\u003eHuman NK Cell Expansion Workflow Evaluation\u003c\/h3\u003e\n\u003cp\u003eReliable expansion of human natural killer cells requires optimized culture conditions that support proliferation while maintaining functional characteristics. XR NK Expansion Media is designed for researchers evaluating ex vivo NK cell expansion workflows, including peripheral blood-derived NK cells and engineered NK cell applications.\u003c\/p\u003e\n\u003cp\u003eRepresentative experimental results can be added here to demonstrate NK cell expansion performance, cell morphology, viability analysis, and phenotype characterization under optimized culture conditions.\u003c\/p\u003e\n\n\u003ch3\u003eNK Cell Viability and Morphology Analysis\u003c\/h3\u003e\n\u003cp\u003eMaintaining high cell viability and healthy morphology is an important consideration for NK cell culture applications. XR NK Expansion Media provides a controlled serum-free environment designed to support stable NK cell growth conditions.\u003c\/p\u003e\n\n\u003ch3\u003eNK Cell Phenotype Characterization\u003c\/h3\u003e\n\u003cp\u003ePhenotypic characterization is commonly used to evaluate expanded NK cell populations. Flow cytometry analysis of markers such as CD56, CD16 and CD3 can be incorporated to assess NK cell identity and population characteristics.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eXR NK Expansion Media is designed for researchers working with human natural killer cell culture workflows requiring consistent expansion conditions and flexible experimental compatibility. The serum-free formulation supports a broad range of NK cell research applications, from basic immune biology studies to engineered immune cell development.\u003c\/p\u003e\n\u003ch3\u003eHuman NK Cell Expansion Research\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eExpansion of human NK cells isolated from peripheral blood mononuclear cells (PBMC-derived NK cell expansion)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEx vivo expansion of human natural killer cells for immunology research\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaintenance and proliferation studies of CD56-positive NK cell populations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFeeder-Free NK Cell Culture Workflows\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eFeeder-free NK cell expansion using cytokine-supported activation systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSerum-free NK cell culture workflows requiring reduced batch variation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDevelopment of simplified NK cell expansion protocols without feeder cell dependency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCAR-NK and Engineered NK Cell Research\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eCAR-NK cell expansion research and engineered immune cell development\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCulture support for genetically modified NK cell populations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdoptive cell therapy research involving natural killer cells\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMultiple NK Cell Source Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003ePeripheral blood-derived NK cell culture\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCord blood-derived NK cell expansion research\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eiPSC-derived NK cell development and expansion studies\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImmunology and Cell Therapy Research\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eNK cell activation studies\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNK cell cytotoxicity and functional assay workflows\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTumor immunology research and immune cell engineering studies\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCell therapy development research requiring reproducible NK cell culture conditions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose XR NK Expansion Media?\u003c\/h2\u003e\n\u003cp\u003eHuman NK cell expansion workflows often require balancing rapid cell growth, functional maintenance and experimental consistency. Traditional serum-containing systems may introduce unwanted variability, while complex feeder-based approaches can increase workflow requirements.\u003c\/p\u003e\n\u003cp\u003eXR NK Expansion Media provides a serum-free culture solution designed to simplify NK cell expansion procedures while supporting multiple research strategies, including feeder-based and feeder-free NK expansion approaches.\u003c\/p\u003e\n\u003cp\u003eWith compatibility across different NK cell sources and applications, XR NK Expansion Media offers researchers a flexible platform for human NK cell culture, CAR-NK research and immune cell expansion studies.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned specifically for human NK cell expansion applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports serum-free and feeder-free NK cell culture workflows\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with PBMC-derived, cord blood-derived and iPSC-derived NK cells\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports engineered immune cell research including CAR-NK applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProvides convenient basal medium plus additive formulation for simplified preparation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is XR NK Expansion Media used for?\u003c\/summary\u003e\n\u003cp\u003eXR NK Expansion Media is a serum-free NK cell culture medium designed for human natural killer cell expansion, maintenance and research applications including PBMC-derived NK cells, feeder-free expansion workflows and CAR-NK cell studies.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is NK cell expansion medium?\u003c\/summary\u003e\n\u003cp\u003eNK cell expansion medium is a specialized culture medium formulated to support the proliferation and maintenance of natural killer cells during in vitro expansion. These media are commonly used for human NK cell culture, immune cell research and cell therapy development studies.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes XR NK Expansion Media support feeder-free NK cell expansion?\u003c\/summary\u003e\n\u003cp\u003eYes. XR NK Expansion Media can be used in feeder-free NK cell expansion workflows and is also compatible with feeder cell-assisted NK expansion approaches.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan this medium be used for PBMC-derived NK cell expansion?\u003c\/summary\u003e\n\u003cp\u003eYes. XR NK Expansion Media is suitable for research involving NK cells derived from peripheral blood mononuclear cells (PBMCs).\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs XR NK Expansion Media suitable for CAR-NK cell research?\u003c\/summary\u003e\n\u003cp\u003eYes. The medium is designed to support research workflows involving engineered NK cells, including CAR-NK cell expansion studies.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat NK cell markers are commonly evaluated after expansion?\u003c\/summary\u003e\n\u003cp\u003eExpanded NK cells are commonly characterized using immune cell markers such as CD56, CD16 and CD3 through flow cytometry-based analysis.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat are the storage conditions for XR NK Expansion Media?\u003c\/summary\u003e\n\u003cp\u003eThe NK basal medium should be stored at 2–8°C. The concentrated culture additive should be stored at -20°C.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat components are included in XR NK Expansion Media?\u003c\/summary\u003e\n\u003cp\u003eThe product contains NK basal medium and a concentrated NK culture additive. The additive is supplied as a 1000× formulation and is combined with the basal medium before use.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n","brand":"XRbio","offers":[{"title":"1Kit","offer_id":52805013799093,"sku":"XRNKSFM-1-1000","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/1_bd3c331d-5ce8-4575-9a39-ac60845d0a9d.jpg?v=1784101125","url":"https:\/\/biofargo.com\/products\/xr-nk-cell-expansion-basal-medium-kit","provider":"Biofargo","version":"1.0","type":"link"}