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        當(dāng)前位置:首頁(yè) > 技術(shù)文章 > 澳大利亞Biosensis公司Fluoro-Jade B (FJB) 粉末用于識(shí)別退化神經(jīng)元介紹

        澳大利亞Biosensis公司Fluoro-Jade B (FJB) 粉末用于識(shí)別退化神經(jīng)元介紹

        更新時(shí)間:2025-10-15      點(diǎn)擊次數(shù):347

         一、基礎(chǔ)信息  

        貨號(hào):TR-150-FJB  

        英文名:Fluoro-Jade B (FJB) Powder for Identifying Degenerating Neurons  

        中文名:Fluoro-Jade B (FJB) 粉末用于識(shí)別退化神經(jīng)元

        規(guī)格:30 mg(干粉形式)  

        品牌:Biosensis

        分子式:C26H16O7  

        分子量:448.4  

        激發(fā)波長(zhǎng):495 nm  

        發(fā)射波長(zhǎng):521 nm  

        純度檢測(cè):HPLC ≥95%  

        熒光量子產(chǎn)率:0.85(相對(duì)熒光素)  

        溶解性:易溶于水(pH 3.0-5.0)  

        替代性說(shuō)明:該產(chǎn)品為Merck-Millipore已停產(chǎn)產(chǎn)品AG310的替代品,性能與原產(chǎn)品高度一致。  

        5fadb438a2a81d94f42314d4cf5317ac_fjb_image_2014_gao_f_1.png

         二、產(chǎn)品原理  

        Fluoro-Jade B(FJB)是一種基于陰離子熒光素衍生物的神經(jīng)組織學(xué)染色試劑,其核心原理是通過(guò)特異性結(jié)合退化神經(jīng)元的脂質(zhì)膜成分(如磷脂酰乙醇胺)實(shí)現(xiàn)熒光標(biāo)記。具體機(jī)制包括:  

        1. 靶向退化神經(jīng)元:  

           - 在神經(jīng)元變性過(guò)程中,細(xì)胞膜結(jié)構(gòu)破壞導(dǎo)致脂質(zhì)代謝產(chǎn)物(如磷脂酰乙醇胺)暴露,F(xiàn)JB通過(guò)靜電作用與這些成分結(jié)合。  

           - 與正常神經(jīng)元相比,退化神經(jīng)元的膜電位改變進(jìn)一步增強(qiáng)了FJB的滲透性和結(jié)合效率。  

        2. 熒光信號(hào)觸發(fā):  

           - FJB的最大激發(fā)波長(zhǎng)為495 nm(藍(lán)光),發(fā)射波長(zhǎng)為521 nm(綠色),可通過(guò)熒光顯微鏡或共聚焦顯微鏡觀察。  

           - 染色后神經(jīng)元呈現(xiàn)明亮的綠色熒光,背景干擾極低,適用于高分辨率成像。  

        3. 抗干擾性:  

           - FJB無(wú)需金屬沉積步驟(如傳統(tǒng)鍍銀染色),避免了金屬離子背景干擾。  

           - 對(duì)組織固定方式(甲醛、戊二醛等)和切片類(lèi)型(冷凍、石蠟包埋)兼容性更強(qiáng)。  


         三、解決的核心實(shí)驗(yàn)問(wèn)題  

        1. 傳統(tǒng)技術(shù)的局限性:  

           - 鍍銀染色法:需多步金屬還原反應(yīng),耗時(shí)長(zhǎng)達(dá)24小時(shí)以上,且成本高昂,難以實(shí)現(xiàn)多重標(biāo)記。  

           - 免疫組化標(biāo)記:依賴(lài)特異性抗體,僅能識(shí)別特定病理標(biāo)志物(如Tau蛋白),無(wú)法全面反映神經(jīng)元退化的整體情況。  

        2. 神經(jīng)退行性疾病研究的痛點(diǎn):  

           - 早期病變檢測(cè):FJB可標(biāo)記尚未出現(xiàn)明顯形態(tài)學(xué)改變的早期退化神經(jīng)元,為阿爾茨海默病、帕金森病等疾病的機(jī)制研究提供敏感工具。  

           - 多模型適用性:支持體外培養(yǎng)神經(jīng)元(如原代皮層神經(jīng)元)和體內(nèi)模型(如大鼠海馬區(qū)損傷模型)的退化評(píng)估。  

        3. 膠質(zhì)細(xì)胞標(biāo)記需求:  

           - FJB不僅能標(biāo)記神經(jīng)元,還可特異性結(jié)合反應(yīng)性星形膠質(zhì)細(xì)胞,為神經(jīng)炎癥研究提供新視角。  


         四、產(chǎn)品優(yōu)勢(shì)  

        1. 高靈敏度與特異性:  

           - 檢測(cè)靈敏度可達(dá)單細(xì)胞水平,信噪比優(yōu)于傳統(tǒng)染色方法。  

           - 雖純度略低于FJC(Biosensis另一產(chǎn)品),但成本僅為FJC的1/3,適合大規(guī)模實(shí)驗(yàn)。  

        2. 實(shí)驗(yàn)兼容性廣泛:  

           - 樣本類(lèi)型:支持冷凍切片、石蠟切片、培養(yǎng)細(xì)胞及灌注固定的組織樣本。  

           - 聯(lián)合染色:可與DAPI(細(xì)胞核標(biāo)記)、GFAP(星形膠質(zhì)細(xì)胞標(biāo)記)或免疫熒光抗體(如Iba-1標(biāo)記小膠質(zhì)細(xì)胞)聯(lián)用,實(shí)現(xiàn)多維度病理分析。  

        3. 操作便捷性:  

           - 染色流程僅需3步:組織透化→FJB染色→封片,全程耗時(shí)約1小時(shí)。  

           - 工作液穩(wěn)定性高,現(xiàn)配現(xiàn)用,避免儲(chǔ)存降解風(fēng)險(xiǎn)。  

        4. 經(jīng)濟(jì)性與可持續(xù)性:  

           - 單批次30 mg粉末可滿足數(shù)百次染色需求(每次使用約1 μg),顯著降低長(zhǎng)期實(shí)驗(yàn)成本。  

           - 干粉形式減少運(yùn)輸和儲(chǔ)存中的污染風(fēng)險(xiǎn),符合實(shí)驗(yàn)室綠色化趨勢(shì)。  


         五、客戶(hù)群體  

        1. 神經(jīng)科學(xué)研究機(jī)構(gòu):  

           - 專(zhuān)注于阿爾茨海默病、帕金森病、肌側(cè)索硬化癥(ALS)等神經(jīng)退行性疾病的實(shí)驗(yàn)室。  

           - 從事神經(jīng)發(fā)育、神經(jīng)代謝及神經(jīng)免疫學(xué)研究的團(tuán)隊(duì)。  

        2. 藥企與CRO公司:  

           - 需評(píng)估藥物對(duì)神經(jīng)元保護(hù)作用的藥理部門(mén)(如抗癲癇藥物、神經(jīng)保護(hù)劑開(kāi)發(fā))。  

           - 提供神經(jīng)毒性評(píng)價(jià)服務(wù)的合同研究組織(CRO)。  

        3. 教學(xué)與臨床轉(zhuǎn)化平臺(tái):  

           - 醫(yī)學(xué)院校的神經(jīng)生物學(xué)教學(xué)實(shí)驗(yàn)室,用于本科生/研究生實(shí)驗(yàn)教學(xué)。  

           - 醫(yī)院病理科開(kāi)展神經(jīng)退行性疾病診斷輔助研究。  


         六、訂貨信息  

        1. 購(gòu)買(mǎi)渠道:  

           - 中國(guó)區(qū)代理:上海起發(fā)

        2. 儲(chǔ)存與使用注意事項(xiàng):  

           - 干粉儲(chǔ)存:避光保存于-20℃,避免吸潮;已溶解的0.01%原液建議4℃短期儲(chǔ)存(不超過(guò)3個(gè)月)。  

           - 質(zhì)量控制:每批次提供質(zhì)檢報(bào)告(包括純度檢測(cè)、熒光穩(wěn)定性測(cè)試)。  

         八、常見(jiàn)問(wèn)題解答(FAQ)  

        1. Q:FJB能否用于活細(xì)胞染色?  

        A:FJB需通過(guò)固定透化處理進(jìn)入細(xì)胞,活細(xì)胞染色需特殊協(xié)議,建議優(yōu)先使用終濃度≤1 μM的預(yù)處理方案。  

        2. Q:與Nissl染色相比有何優(yōu)勢(shì)?  

        A:Nissl染色反映細(xì)胞活性,而FJB特異性標(biāo)記退化神經(jīng)元,二者聯(lián)用可區(qū)分壞死與凋亡。  

        3. Q:如何避免染色背景過(guò)高?  

        A:優(yōu)化透化時(shí)間(推薦10-15分鐘),避免過(guò)度消化;使用0.1% Triton X-100作為透化劑。  


        九、總結(jié)  

        Fluoro-Jade B(TR-150-FJB)作為神經(jīng)退行性研究的核心工具,憑借其高靈敏度、實(shí)驗(yàn)靈活性和經(jīng)濟(jì)性,已成為全球3000余家實(shí)驗(yàn)室的優(yōu)秀試劑。Biosensis公司通過(guò)持續(xù)優(yōu)化生產(chǎn)工藝,確保產(chǎn)品性能穩(wěn)定,而艾美捷科技憑借本土化服務(wù)網(wǎng)絡(luò),為中國(guó)科研用戶(hù)提供從產(chǎn)品供應(yīng)到技術(shù)支持的完整解決方案。無(wú)論是基礎(chǔ)研究還是藥物開(kāi)發(fā),F(xiàn)JB都為揭示神經(jīng)元退化的分子機(jī)制提供了不可替代的技術(shù)支撐。


        關(guān)鍵詞:Biosensis、Biosensis神經(jīng)科學(xué)抗體、Biosensis ELISA試劑盒、Biosensis組織染色試劑盒、Biosensis神經(jīng)營(yíng)養(yǎng)因子抗體、Biosensis退化神經(jīng)元染色、Biosensis淀粉樣斑塊染色、Biosensis帕金森病研究抗體、Biosensis阿爾茨海默病研究試劑、Biosensis PDGF-AB ELISA試劑盒、Biosensis寡聚淀粉樣βELISA試劑盒、Biosensis神經(jīng)絲輕鏈抗體、Biosensis膠質(zhì)細(xì)胞源性神經(jīng)營(yíng)養(yǎng)因子抗體、Biosensis腦源性神經(jīng)營(yíng)養(yǎng)因子ELISA、Biosensis神經(jīng)生長(zhǎng)因子受體ELISA、Biosensis離子鈣結(jié)合接頭分子1抗體、Biosensis雙皮質(zhì)素抗體、Biosensis帕金森病蛋白7抗體、Biosensis成熟NGF ELISA、Biosensis原NGF ELISA、Biosensis神經(jīng)退行性疾病抗體、Biosensis自噬研究抗體、Biosensis代謝應(yīng)激障礙試劑、Biosensis神經(jīng)免疫學(xué)試劑、Biosensis炎癥研究抗體、Biosensis中國(guó)代理、Biosensis神經(jīng)科學(xué)產(chǎn)品線、Biosensis抗體應(yīng)用WB/ICC/IHC


        更多產(chǎn)品信息,請(qǐng)聯(lián)系中國(guó)區(qū)域代理商:上海起發(fā)實(shí)驗(yàn)試劑有限公司

        如果您對(duì)任意產(chǎn)品或其他品牌感興趣,可通過(guò)“在線留言"功能留下您的需求

        (注:本文內(nèi)容基于品牌公開(kāi)資料及行業(yè)常規(guī)信息整理,具體以品牌信息文檔為準(zhǔn)。)


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        BEK-2239-1P

        NGFR/p75ECD Rapid ELISA Kit: Human (1 Plate)

        1PlateKit

        Biosensis

        BEK-2239-2P

        NGFR/p75ECD Rapid ELISA Kit: Human (2 Plates)

        2PlateKit

        Biosensis

        BEK-2240-SET

        Mature BDNF/proBDNF Combo (BEK-2211/2217), Human, Mouse, Rat, Rapid™ ELISA assay-2 x 1 Plate Set

        2x1PlateSet

        Biosensis

        BEK-2241-SET

        Mature BDNF/proBDNF Combo (BEK-2211/2237), Human, Mouse, Rat, Rapid™ ELISA assay-2 x 1 Plate Set

        2x1PlateSet

        Biosensis

        BEK-2244-10P

        A2 Beta casein (A2), Bovine, ELISA assay

        10PlateKit

        Biosensis

        BEK-2244-2P

        A2 Beta casein (A2), Bovine, ELISA assay

        2PlateKit

        Biosensis

        G-1909-100

        Goat antibody to Prominin-1 (PROM1, CD133, 310-322): Affinity purified

        100ug

        Biosensis

        BL-002-1250

        Heterophilic antibody blocker for ELISA assays utilizing mouse assay antibodies-1250 µg

        1250ug

        Biosensis

        BL-004-500

        Heterophilic antibody blocker for BEK-2217, BEK-2221, BEK-2237 & BEK-2240 and similar ELISA assays-500 µg

        500ug

        Biosensis

        BSS-M-1650-100

        Mouse monoclonal antibody to Growth Associated Protein 43 (GAP43)

        100ug

        Biosensis

        BSS-R-118-100

        Rabbit antibody to Tyrosine Hydroxylase (TH): whole serum

        100uL

        Biosensis

        C-1373-50

        Chicken polyclonal antibody to Glial Fibrillary Acidic Protein (GFAP)

        50uL

        Biosensis

        C-1382-50

        Microtubule-associated protein 2 (MAP2), Chicken Polyclonal Antibody-50 µL

        50uL

        Biosensis

        BEK-2105-1P

        Urokinase-typeplasminogen activator(uPA), Human, ELISAassay

        EA

        Biosensis

        C-1781-100

        Casein, A1 beta, Chicken Polyclonal Antibody-100 µL

        100uL

        Biosensis

        C-2126-100

        Tyrosine Hydroxylase (TH), Chicken Polyclonal Antibody-100 µg

        100ug

        Biosensis

        G-185-100

        Nerve growth factor (Beta-NGF), Goat Polyclonal Antibody-100 µL

        100uL

        Biosensis

        G-1900-100

        Intermediate conductance calcium-activated potassium channel protein 4 (KCNN4), Goat Polyclonal Antibody

        100ug

        Biosensis

        BEK-2228-SET

        Mature NGF/proNGF Combo (BEK-2214/2236), Rat, Rapid™ ELISA assay-2 x 1 Plate Set

        2x1PlateSet

        Biosensis


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