{"id":112880,"date":"2024-07-19T10:13:11","date_gmt":"2024-07-19T16:13:11","guid":{"rendered":"https:\/\/purmabiologics.com\/blog\/?post_type=product&#038;p=112880"},"modified":"2026-07-31T12:43:43","modified_gmt":"2026-07-31T18:43:43","slug":"mem-alpha-modification-with-nucleosides-max-mem-alpha-n-max-in-hanks-buffer","status":"publish","type":"product","link":"https:\/\/purmabiologics.com\/blog\/product\/mem-alpha-modification-with-nucleosides-max-mem-alpha-n-max-in-hanks-buffer\/","title":{"rendered":"MEM Alpha-Modification with Nucleosides MAX (MEM-Alpha-N-MAX) in Hanks\u2019 Buffer"},"content":{"rendered":"<h2 data-rm-block-id=\"block-1\">Background<\/h2>\n<p data-rm-block-id=\"block-2\">MEM Alpha-Modification with Nucleosides MAX (MEM-Alpha-N-MAX) in Hanks\u2019 Buffer is a commonly used media for Mammalian cell culture.<\/p>\n<h2 data-rm-block-id=\"block-3\">Advantages<\/h2>\n<h3 data-rm-block-id=\"block-4\">The advantages of MEM Alpha-Modification with Nucleosides MAX (MEM-Alpha-N-MAX) in Hanks\u2019 Buffer over MEM-\u03b1-N (HBSS) are:<\/h3>\n<ul>\n<li data-rm-block-id=\"block-5\">Higher PH Capacity<\/li>\n<li data-rm-block-id=\"block-6\">Moreover, it contains 4 mM L-Alanyl-L-Glutamine (0.869 g\/L) instead of L-Glutamine and therefore:<\/li>\n<li data-rm-block-id=\"block-7\">Possess longer shelf life.<\/li>\n<li data-rm-block-id=\"block-8\">More importantly, minimizes toxic ammonia build-up.<\/li>\n<li data-rm-block-id=\"block-9\">Significantly improves cell viability and growth.<\/li>\n<li data-rm-block-id=\"block-10\">Remains stable across a wide range of temperatures.<\/li>\n<li data-rm-block-id=\"block-11\">Consequently, it improves the culture of primary cells.<\/li>\n<\/ul>\n<h2 data-rm-block-id=\"block-12\">Mechanism<\/h2>\n<p data-rm-block-id=\"block-13\">Although L-glutamine is a vital amino acid, it degrades, resulting in the generation of toxic ammonia and pyrrolidine carboxylic acid. One way to minimize L-glutamine degradation in media is to gradually add these amino acids to your cell culture. However, keeping track of time to keep the amount of L-glutamine at the same level is tedious, if not impossible.<\/p>\n<p data-rm-block-id=\"block-14\">Alternatively, L-alanyl-L-glutamine can be used because it is much more stable in aqueous solutions. More importantly, it does not easily degrade and gradually releases aminopeptidases. As a result, L-glutamine and L-alanine are then used by the cells for protein production in the TCA cycle.<\/p>\n<p data-rm-block-id=\"block-15\">In addition to our Max formulation products, we manufacture PurMa<sup>TM <\/sup>GluaSup (Cat# P3S210 559), a combination of L-alanyl-L-glutamine which prevents degradation of L-glutamine.<\/p>\n<h2 data-rm-block-id=\"block-16\">Contents<\/h2>\n<h3 data-rm-block-id=\"block-17\">MEM Alpha-Modification with Nucleosides MAX (MEM-Alpha-N-MAX) in Hanks\u2019 Buffer contains:<\/h3>\n<ul>\n<li data-rm-block-id=\"block-18\">5 mM sodium pyruvate<\/li>\n<li data-rm-block-id=\"block-19\">High glucose (4.5g\/L)<\/li>\n<li data-rm-block-id=\"block-20\">Non-Essential Amino Acids<\/li>\n<li data-rm-block-id=\"block-21\">3.7 g\/L Sodium Bicarbonate; PurMa Biologics Manufactures several types of MEM-\u03b1-N-MAX (HBSS) based on the amount of Sodium Bicarbonate and HEPES (PH capacity)<\/li>\n<li data-rm-block-id=\"block-22\">Phenol Red<\/li>\n<\/ul>\n<p data-rm-block-id=\"block-23\">PurMa\u2122 MEM Alpha-Modification with Nucleosides MAX (MEM-Alpha-N-MAX) in Hanks\u2019 Buffer is modified from MEM-\u03b1-MAX with the following ingredients:<\/p>\n<ul>\n<li data-rm-block-id=\"block-24\">Ribonucleosides<\/li>\n<li data-rm-block-id=\"block-25\">Deoxyribonucleosides<\/li>\n<\/ul>\n<p data-rm-block-id=\"block-26\">MEM Alpha-Modification with Nucleosides MAX (MEM-Alpha-N-MAX) in Hanks\u2019 Buffer contains no proteins, lipids, or growth factors. Therefore, it requires supplementation, commonly with 10% Fetal bovine Serum (FBS).<\/p>\n<h2 data-rm-block-id=\"block-27\">Formulation<\/h2>\n<p data-rm-block-id=\"block-28\">The complete formulation can be found here: <span style=\"color: #0000ff;\"><strong><a style=\"color: #0000ff;\" href=\"https:\/\/purmabiologics.com\/blog\/wp-content\/uploads\/2023\/06\/MEM-alpha-with-Nucleosides-MAX-Formulation-in-Earls-Buffer-P3M310124.pdf\" target=\"_blank\" rel=\"noopener\">MEM alpha-MAX with nucleoside in HBSS Buffer Formulation<\/a><\/strong><\/span><\/p>\n<h2 data-rm-block-id=\"block-29\">References<\/h2>\n<ol>\n<li data-rm-block-id=\"block-30\"><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/3401543\/\" rel=\"nofollow noopener\" target=\"_blank\">Culture of granulosa cells in collagen gels: the influence of cell shape on steroidogenesis. <\/a><\/span>Carnegie JA, et al. Biol Reprod. 1988 May;38(4):881-90. doi: 10.1095\/biolreprod38.4.881. PMID: 3401543<\/li>\n<li data-rm-block-id=\"block-31\"><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/3654371\/\" rel=\"nofollow noopener\" target=\"_blank\">Myelin formation in rat dorsal root ganglion cultured in a serum-free medium. <\/a><\/span>Ninomiya T, Takahashi K. J Anat. 1987 Jun;152:209-13. PMID: 3654371<\/li>\n<li data-rm-block-id=\"block-32\"><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/820846\/\" rel=\"nofollow noopener\" target=\"_blank\">Long-term organ culture of hamster cheek pouch mucosa. <\/a><\/span>Mock D, Main JH. J Oral Pathol. 1976 Jul;5(4):237-40. doi: 10.1111\/j.1600-0714.1976.tb01770.x. PMID: 820846<\/li>\n<\/ol>\n<div class=\"table-2\">\n<table width=\"100%\">\n<thead>\n<tr>\n<th align=\"left\" data-rm-block-id=\"block-33\">Parameter<\/th>\n<th align=\"left\" data-rm-block-id=\"block-34\">Specification<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td align=\"left\" data-rm-block-id=\"block-35\">Appearance<\/td>\n<td align=\"left\" data-rm-block-id=\"block-36\">Red, clear liquid<\/td>\n<\/tr>\n<tr>\n<td align=\"left\" data-rm-block-id=\"block-37\">pH<\/td>\n<td align=\"left\" data-rm-block-id=\"block-38\">7.2 \u00b1 0.1<\/td>\n<\/tr>\n<tr>\n<td align=\"left\" data-rm-block-id=\"block-39\">Osmolality<\/td>\n<td align=\"left\" data-rm-block-id=\"block-40\">275-360 mOsm\/L<\/td>\n<\/tr>\n<tr>\n<td align=\"left\" data-rm-block-id=\"block-41\">Endotoxin<\/td>\n<td align=\"left\" data-rm-block-id=\"block-42\">NMT&lt; 2EU\/mL<\/td>\n<\/tr>\n<tr>\n<td align=\"left\" data-rm-block-id=\"block-43\">Mycoplasma<\/td>\n<td align=\"left\" data-rm-block-id=\"block-44\">Negative<\/td>\n<\/tr>\n<tr>\n<td align=\"left\" data-rm-block-id=\"block-45\">Suitability<\/td>\n<td align=\"left\" data-rm-block-id=\"block-46\">\u00a0Suitable for mammalian cell culture<\/td>\n<\/tr>\n<tr>\n<td align=\"left\" data-rm-block-id=\"block-47\">Additive<\/td>\n<td align=\"left\" data-rm-block-id=\"block-48\">Sodium pyruvate<\/td>\n<\/tr>\n<tr>\n<td align=\"left\" data-rm-block-id=\"block-49\">Indicator<\/td>\n<td align=\"left\" data-rm-block-id=\"block-50\">Phenol red<\/td>\n<\/tr>\n<tr>\n<td align=\"left\" data-rm-block-id=\"block-51\">Mycoplasma Detection<\/td>\n<td align=\"left\" data-rm-block-id=\"block-52\">Negative<\/td>\n<\/tr>\n<tr>\n<td align=\"left\" data-rm-block-id=\"block-53\">Sterility Tested<\/td>\n<td align=\"left\" data-rm-block-id=\"block-54\">Sterile filtered using 0.22 \u00b5m filter<\/td>\n<\/tr>\n<tr>\n<td align=\"left\" data-rm-block-id=\"block-55\">Form<\/td>\n<td align=\"left\" data-rm-block-id=\"block-56\">Liquid<\/td>\n<\/tr>\n<tr>\n<td align=\"left\" data-rm-block-id=\"block-57\">Shipping Condition<\/td>\n<td align=\"left\" data-rm-block-id=\"block-58\">\u00a0Room temperature<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p data-rm-block-id=\"block-59\">\n","protected":false},"excerpt":{"rendered":"<p>MEM \u03b1-Modification with Nucleosides MAX in Hanks\u2019 Buffer (MEM-\u03b1-N-MAX-HBSS) contains L-Alanyl-L-Glutamine, as well as Nucleosides.\u00a0 \u00a0Additionally, MEM-\u03b1-N-MAX (HBSS) significantly improves cell viability and growth. We manufacture several types of MEM-\u03b1-N-MAX based on your requirements.<\/p>\n","protected":false},"featured_media":127451,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[283,608],"product_tag":[581,682,523,515,666,556,595,517,522,528,545,546],"class_list":["post-112880","product","type-product","status-publish","has-post-thumbnail","product_cat-cell-culture-media","product_cat-mem--modification-with-nucleosides-in-hanks-buffer","product_tag-cell-culture","product_tag-glucose","product_tag-hanks-buffer","product_tag-hbss","product_tag-l-alanyl-l-glutamine","product_tag-mammalian-cells","product_tag-max","product_tag-mem-alpha","product_tag-mem-","product_tag-nucleosides","product_tag-phenol-red","product_tag-without-phenol-red","entry","has-media","first","instock","sale","taxable","shipping-taxable","purchasable","product-type-variable","has-product-nav","col","span_1_of_4","owp-content-center","owp-thumbs-layout-horizontal","owp-btn-normal","owp-tabs-layout-horizontal","has-no-thumbnails"],"acf":[],"_links":{"self":[{"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/product\/112880","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/comments?post=112880"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/media\/127451"}],"wp:attachment":[{"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/media?parent=112880"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/product_brand?post=112880"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/product_cat?post=112880"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/product_tag?post=112880"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}