PKH26说明书
PKH26说明书(中文)

PKH26 红色荧光细胞连接试剂盒(普通细胞膜标记)产品编号:MINI26,MIDE26和PKH26GL室温保存TECHNICAL BULLETIN产品说明PKH26荧光细胞连接试剂盒采用拥有专利的膜标记技术,能够将带有较长脂质尾巴的黄色-橙色荧光染料(PKH26)结合到细胞膜脂质区域上。
试剂盒中提供染色过程中所需的溶剂(稀释液C),该溶剂可以可以在染色过程中,增加染料溶解度和染色效率,同时维持细胞活力。
稀释液C与哺乳动物细胞等渗,且不含去垢剂或有机溶剂,也不含生理盐水和缓冲盐。
根据细胞类型及标记后细胞膜内在的变化,标记后的细胞表面会由均一透亮变得有点状凸起或补丁状。
但在生理范围内,PKH26荧光不受pH的影响,每个细胞的荧光强度与染料标记位置无关。
PKH26荧光在黄色-橙色区域(图一),可用来标记追踪体内外多种细胞。
在细胞毒性分析,荧光蛋白、抗体或DNA染料在该区域发出的紫色、绿色、红色和远红外等,不会与PKH26产生干扰。
PKH26最常被用于基于染料稀释增殖的分析的染料稀释应用,包括建立抗原特异性前体frequecies和正常或肿瘤组织中静止或缓慢干细胞或祖细胞的鉴定。
同时PKH26也可用于监测外来病毒、血小板和其他纳米颗粒的摄入;干细胞分裂过程中膜的分配;细胞-细胞之间膜的转移;细胞吞噬作用;抗原呈递;粘附;通过间隙连接的信号传递;以及组织切片中的神经元迁移。
由于其荧光稳定性较强,PKH26被用于体内细胞追踪研究,特别是在标记的细胞的研究周期超过一周时。
图1. PKH26激发和发射光谱1×10-3M (溶于乙醇)MINI26试剂盒推荐用于小的或初步试验研究,PKH26GL用于体内实验研究所需设备和试剂(试剂盒未提供)·充分分散的单个悬浮细胞·含血清的组织培养基(完全培养基)·无Ca2+,Mg2+和血清的培养基或者缓冲盐(如Dulbecco’s PBS或Hank’s BSS)·血清,白蛋白或其它组织兼容性蛋白·离心管(4-15mL)·温控离心机(1,000×g)·荧光分析设备(荧光读板机,荧光或共聚焦显微镜,流式细胞仪)·层流罩·血球计数板或细胞计数器·载玻片和盖玻片注意事项和免责说明该产品仅用于科研,不用于制药、家庭或其它用途。
二甲氨基乙醇酒石酸氢盐-安全技术说明书MSDS

第一部分化学品及企业标识化学品中文名:二甲氨基乙醇酒石酸氢盐化学品英文名:(2-hydroxyethyl)dimethylammonium hydrogen tartrateCAS No.:5988-51-2分子式:C8H17NO7产品推荐及限制用途:工业及科研用途。
第二部分危险性概述紧急情况概述造成皮肤刺激。
造成严重眼刺激。
可引起呼吸道刺激。
GHS危险性类别皮肤腐蚀 / 刺激类别 2严重眼损伤 / 眼刺激类别 2特异性靶器官毒性一次接触类别 3标签要素:象形图:警示词:警告危险性说明:H315 造成皮肤刺激H319 造成严重眼刺激H335 可引起呼吸道刺激●预防措施:—— P264 作业后彻底清洗。
—— P280 戴防护手套/穿防护服/戴防护眼罩/戴防护面具。
—— P261 避免吸入粉尘/烟/气体/烟雾/蒸气/喷雾。
—— P271 只能在室外或通风良好处使用。
●事故响应:—— P302+P352 如皮肤沾染:用水充分清洗。
—— P332+P313 如发生皮肤刺激:求医/就诊。
—— P362+P364 脱掉沾染的衣服,清洗后方可重新使用—— P305+P351+P338 如进入眼睛:用水小心冲洗几分钟。
如戴隐形眼镜并可方便地取出,取出隐形眼镜。
继续冲洗。
—— P337+P313 如仍觉眼刺激:求医/就诊。
—— P304+P340 如误吸入:将人转移到空气新鲜处,保持呼吸舒适体位。
—— P312 如感觉不适,呼叫解毒中心/医生●安全储存:—— P403+P235 存放在通风良好的地方。
保持低温。
—— P405 存放处须加锁。
●废弃处置:—— P501 按当地法规处置内装物/容器。
物理和化学危险:无资料。
健康危害:造成皮肤刺激。
造成严重眼刺激。
可引起呼吸道刺激。
环境危害:无资料。
第三部分成分/组成信息√物质混合物第四部分急救措施急救:吸入:如果吸入,请将患者移到新鲜空气处。
皮肤接触:脱去污染的衣着,用肥皂水和清水彻底冲洗皮肤。
pkh26激发波长和发射波长(3篇)

第1篇一、引言荧光染料在生物学、化学、材料科学等领域具有广泛的应用。
PKH26作为一种新型荧光染料,因其优异的性能和稳定性而备受关注。
本文将对PKH26的激发波长和发射波长进行探讨,以期为相关研究提供参考。
二、PKH26荧光染料的性质PKH26荧光染料是一种红色荧光染料,具有以下特性:1. 激发波长:630nm2. 发射波长:665nm3. 溶解性好,易于生物应用4. 染色效果好,标记细胞后,细胞活力不受影响5. 稳定性高,不易褪色三、激发波长和发射波长的意义1. 激发波长:激发波长是指荧光染料吸收光子的波长。
对于PKH26荧光染料,激发波长为630nm。
这意味着当630nm的光照射到PKH26时,染料会吸收光子并发出荧光。
2. 发射波长:发射波长是指荧光染料发出光的波长。
对于PKH26荧光染料,发射波长为665nm。
发射波长决定了荧光染料在荧光显微镜、流式细胞仪等设备中的可见性。
四、激发波长和发射波长的影响因素1. 激发波长的影响因素(1)染料分子结构:染料分子结构对其激发波长有较大影响。
对于PKH26,其分子结构中含有多个共轭体系,导致激发波长较长。
(2)溶剂:溶剂对激发波长也有一定影响。
在极性溶剂中,激发波长通常较长;在非极性溶剂中,激发波长通常较短。
2. 发射波长的影响因素(1)染料分子结构:染料分子结构对其发射波长有较大影响。
对于PKH26,其分子结构中含有多个共轭体系,导致发射波长较长。
(2)溶剂:溶剂对发射波长也有一定影响。
在极性溶剂中,发射波长通常较长;在非极性溶剂中,发射波长通常较短。
五、激发波长和发射波长的应用1. 荧光显微镜:在荧光显微镜中,PKH26荧光染料的激发波长和发射波长使其在可见光范围内具有较高的荧光强度,有利于细胞、组织等样品的观察。
2. 流式细胞仪:在流式细胞仪中,PKH26荧光染料的激发波长和发射波长有助于实现细胞表面或内部标记的检测。
3. 生物成像:在生物成像领域,PKH26荧光染料的激发波长和发射波长有利于细胞、组织等样品的成像。
【国家自然科学基金】_pkh26_基金支持热词逐年推荐_【万方软件创新助手】_20140802

2012年 序号 1 2 3 4 5 6 7 8 9 10
科研热词 裸鼠肝脏 荧光抗体技术 肝纤维化 肝样细胞 细胞分化 移植 大鼠 外周血单核细胞 内皮祖细胞 pkh26
推荐指数 1 1 1 1 1 1 1 1 1 1
2013年 序号 1 2 3 4 5 6 7
科研热词 pkh26 髓核 脱细胞软骨基质 组织工程 活体荧光成像技术 椎间盘组织工程 山羊
推荐指数 2 1Βιβλιοθήκη 1 1 1 1 1 1 1 1 1 1 1 1
2011年 序号 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
2011年 科研热词 骨髓间充质干细胞 髓样组细胞 骨髓细胞输注 软骨 西罗莫司 胰岛 细胞支架 细胞培养 细胞凋亡 移植 生物医学工程 慢性肾损伤 心肌梗死 心肌干细胞 心电生理学特性 心律失常 室颤阈值 大鼠 培养 分离 全骨髓培养 免疫耐受 pkh26 bcl-2 bax 推荐指数 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
2009年 序号 1 2 3 4 5 6
科研热词 轴突再生 脊髓损伤 组织工程 大鼠 去上皮细胞羊膜 bmscs
推荐指数 1 1 1 1 1 1
2010年 序号 1 2 3 4 5 6 7 8 9 10 11 12 13 14
科研热词 组织工程 鸡 骨髓间充质干细胞 骨髓 间质干细胞 软骨 荧光 移植 神经干细胞 四氯联苯 周围神经 原始生殖细胞 创伤性脑损伤 pkh26
2008年 序号 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
科研热词 骨髓 鉴定 角膜 表皮干细胞 脱细胞基质 胶原 胎儿 肝/细胞学 肝 生物医学工程 猫 大鼠 动物,新生 分离 分化 内皮祖细胞
PKH26标记和分子荧光活体成像技术在软骨组织工程研究中的应用

PKH26标记和分子荧光活体成像技术在软骨组织工程研究中的应用祁霁舟;徐宝山;彭江;许文静;杨强【摘要】目的:探讨PKH26荧光标记和分子荧光活体成像技术在软骨组织工程中的应用。
方法用PKH26荧光标记犬软骨细胞,种植到多孔支架上,体外培养1周后异位移植到裸鼠背部,4周后用分子荧光活体成像系统示踪,并与X线检查结果对比。
然后处死裸鼠取材,与免疫组织化学染色和免疫荧光观察结果对比。
结果4周分子荧光活体成像系统观察裸鼠背部标本处呈圆形强荧光,表明组织工程软骨在裸鼠体内生长良好。
组织学切片结果显示番红O染色、Ⅱ型胶原免疫组化染色和甲苯胺蓝染色阳性,荧光显微镜下观察结果显示组织工程化软骨中细胞均呈红色荧光,Ⅱ型胶原免疫荧光染色呈绿色荧光,叠加后呈黄色荧光。
结论 PKH26荧光标记和分子荧光活体成像2种方法结合应用于软骨组织工程中,能够较理想地且大体无创伤性评估组织工程化软骨组织在体内的生长情况。
%Objective To investigate the application of PKH26 and molecular light imaging system in cartilage en⁃gineering. Methods Canine chondrocyte was labeled by fluorescent dye PKH26 and seeded into the porous cartilage acel⁃lular matrix scaffold. The cells/scaffold constructs were cultured in vitro for 1 week. Then the constructs were implanted into the dorsal pocket of nude mice. We utilized a molecular light imaging system to macroscopically observe cells/scaffold con⁃structs in vivo with fluorescence at the 4th weeks, and compared with X-rays taken at the same position. The fluorescence im⁃ages were compared with the immunohistochemical and immunofluorescent results of cartilage-like tissue in vivo. ResultsLuminescent images were acquired at the 4th weeks, a red color enhanced overlay of the luminescent image over X-ray photo⁃graphic image demonstrated the location of the implants and the cell viability and cell growth on porous CACM scaffold in vivo were very well. Histological results show that the safranin O, anti-collagenⅡimmunohistochemistry and toluidine blue stain of cartilage-like tissue is positive. Immunofluorescence examination demonstrated chondrocytes in the constructs whitch is showen red fluorescence, and anti-collagenⅡimmunofluorescent staining was showen in green while the overlap⁃ping image is showen in yellow. Conclusion This study outlines an applicable non-destructive method to evaluate cell growth in tissue engineering constructs in vivo using PKH26 and molecular light imaging system.【期刊名称】《天津医药》【年(卷),期】2014(000)012【总页数】4页(P1156-1158,1159)【关键词】软骨细胞;组织工程;荧光;PKH26【作者】祁霁舟;徐宝山;彭江;许文静;杨强【作者单位】天津医科大学研究生院邮编300070;天津市天津医院脊柱外科;中国人民解放军总医院;中国人民解放军总医院;天津市天津医院脊柱外科【正文语种】中文【中图分类】R329-33;R349.89临床上关节软骨损伤类疾病很常见,关节软骨是不可再生组织,损伤后几乎不能自主修复[1]。
荧光染料PKH26产品描述及使用方法

荧光染料PKH26产品描述及使用方法产品描述:专利膜标记技术,稳定的与细胞膜脂质区结合并发出红色荧光,染色方式依赖于细胞与膜的类型,主要用于细胞体外标记、体外细胞增殖研究及体内外细胞示示踪研究。
成分:PKH26染料1瓶(>0.1ml,1×10-3 M乙醇液中);稀释液C(1瓶>10ml).贮藏:避光冷藏,用前检查结晶,如有结晶需在37℃水浴溶晶。
因在乙醇中贮藏,所以要盖紧防挥发。
稀释液C:常温或冰箱保存,无防腐剂和抗生素,保持无菌。
染料的工作液随用随配,不要将配好的染料贮存。
步骤:所需材料:均匀的单细胞悬液;含血清培养基;无血清培养基或不含Ca2+Mg2+的PBS液;血清、白蛋白或与培养基兼容的蛋白源;聚丙烯锥形离心管;温度可控的离心机(0-1000g);荧光分析仪(荧光计,荧光显微镜,流式细胞仪,荧光图象分析仪);超净台;细胞计数仪;载玻片。
注意:过度的细胞标记将导致膜完整性丧失、细胞数量下降。
本样品细胞和染料浓度是参照浓度适合大部分细胞,但最佳染料/细胞由使用者根据细胞类型和实验目的决定,另外使用者还要评估细胞的生存力(排碘),荧光强度,荧光峰值的变异系数,染色的均匀性。
无菌操作示范步骤(总体积2ml,染色终浓度为2×10-6M PKH26染料和1×107细胞/ml):1、胰酶和/或EDTA消化细胞形成单细胞悬液;2、所有操作在25℃进行,2×107细胞于锥形离心管中,用无血清培养基洗一次。
3、400g离心5min形成松散的细胞团。
4、吸去上清,细胞团上剩余液体<25ul。
5、加1ml稀释液C,重悬细胞保证完全离散,别震荡。
6、染色前,准备4×10-6M的PKH26染液(用稀释液C稀释)置于离心管中。
为使乙醇影响最小,染料的加入量应小于总量的1%。
如果需更大的稀释染料,应用无水乙醇25℃稀释。
7、尽快加1ml2×细胞到1ml2×染料,立即用吸管均匀快速混合样品,因为均匀的染色是在瞬间发生的。
Sennheiser HME 26-II HD 26 PRO HMD 26-II 安全说明书

HME 26-II HD 26 PROHMD 26-II Broadcast HMDC 26-IIImportant safety instructionsImportant safety instructions•Please read this instruction manual carefully and com-pletely before using the product.•Make this instruction manual easily accessible to all users at all times.•Always include this instruction manual when passing the product on to third parties.•The product is capable of producing sound pressure levels exceeding 85 db (A). In many countries 85 db (A) is the maximum legally permissible level for continuous noise exposure during the working day. Exposure to sounds of higher volume levels or for longer durations can perma-nently damage your hearing.•Never repair or attempt to repair a defective product yourself. Contact your Sennheiser partner or the Sennheiser Service Department.•Only replace those parts of the product whose replace-ment is described in this instruction manual. Only use attachments, accessories or spare parts specified by Sennheiser. All other parts of the product must be replaced by your Sennheiser agent.•Protect the product from humidity. Use only a dry cloth to clean the product. For information on how to clean the headset, contact your Sennheiser partner.1Important safety instructionsIntended useIntended use includes :•having read and this instruction manual, especially the chapter “Important safety instructions”.•using the product within the operating conditions and limitations described in this instruction manual. Improper useImproper use means using the product other than as described in this instruction manual, or under operating con-ditions which differ from those described herein.2The 26-II headset series and the HD 26 PRO headphonesThe 26-II headset seriesand the HD 26 PRO headphonesThe HMD 26-II/HME 26-II/HMDC 26-II headsets and the HD 26 PRO headphones feature dynamic, closed head-phones. The noise-compensating microphone of the HMD 26-II and HMDC 26-II ensures excellent speech trans-mission even in noisy environments.The headsets have been designed for broadcast use, e.g. for outdoor broadcast or broadcast van applications. The HMDC 26-II features NoiseGard™ professional active noise compensation. The HME 26-II is available with an omni-direc-tional or a cardioid microphone, making it suitable for either outdoor or studio use.Features•Lightweight•Extremely comfortable to wear, even for extended lis-tening, due to the patented two-piece automatic head-band and soft ear pads•ActiveGard™ (switchable) safeguards you from volume peaks above 105 db (HME 26-II/HMD 26-II/HD 26 PRO)•NoiseGard™ professional active noise compensation reduces ambient noise by up to 18 db (HMDC 26-II)•“Flip-away” headphone allows single-sided listening3Package contents•Detailed, linear sound reproduction for demanding appli-cations•Flexible microphone boom, can be worn on either left or right-hand side•Noise-compensating dynamic microphone ensures excel-lent speech transmission (HMD 26-II/HMDC 26-II)•Omni-directional condenser microphone with extremely linear frequency response (HME 26-II)•Single-sided cable, easy to replacePackage contents1HMD 26-II / HME 26-II / HMDC 26-II / HD 26 PRO1cable clip1wind and pop screen (except HD 26 PRO)1headband padding, large1instruction manual4Operation5OperationTurning the microphone boomthe head.Putting on the headsetheadset, the patented two-automatically.Operation6Positioning the microphoneBend the flexible microphone boom so that the microphone is placed at the corner of the mouth. Maintain a distance of 2 cm between microphone and mouth. Always use the sup-plied wind and pop screen.Do not position the microphone directly in front of your mouth as it will pick up your breathing and plosive noises from your mouth. In addition, moisture can adversely affect the sound and performance of your microphone.sound inlet basket, makeplace with an audibleclick.the sound inlet.Operation7Flipping away one ear cupThe headset’s “flip-away” ear cup can be flipped backwards by approx. 45°, allowing for singled-sided listening.Connecting the HD 26 PRO headphones to the audio system ̈If necessary, screw the screw-on adapter for ¼“ (6.3 mm) jack plug onto the 3.5 mm jack plug.Operation8Adjusting the volume on the audio systemConnect the headset to the corresponding sockets of your audio system.̈Adjust the volume directly on the audio system.This headset is capable of producing high sound pressure levels. Higher volumes or longer durations can damage your hearing!̈Set the volume to a medium level. Make sure that you can hear critical environmental sounds.OperationSwitching ActiveGard™ on and off(HME 26-II/HMD 26-II/HD 26 PRO)ActiveGard™ safeguards your ears from volume peaks above 105 db, which can be transmitted via the audio system or radio equipment.9OperationControl unit for HMDC 26-II in conjunction with cable -B-7Switching NoiseGard™ on and off (HMDC 26-II)The NoiseGard™ ON /OFF switch 1 allows you to switch the NoiseGard™ active noise compensation on or off. With Noise-Gard™ switched off, the headset can be used as a conven-tional headset.̈Set the NoiseGard™ ON /OFF switch 1 to the desired position:1NoiseGard™ ON /OFFswitch2LED Position FunctionON NoiseGard™ is switched on.The LED 2 lights up, indicating the battery chargestatus.OFFNoiseGard™ is switched off.The LED 2is off.OperationPowering NoiseGard™ via two (rechargeable) batteries̈Insert two 1.5 V AA alkaline batteries (IEC LR 6) or two1.2 V AA rechargeable batteries (IEC LR 6). Observecorrect polarity when inserting the batteries.The operating time with batteries/rechargeable batteries is approx. 60 hours. With NoiseGard™ switched on, the LED 2 provides information on the remaining battery/ rechargeable battery capacity:LED 2Meaninglights up yellow The battery capacity is sufficient.lights up red The batteries are flat. Replace the batteries.Care and maintenanceCare and maintenanceCleaning and maintaining the headseẗOnly use a soft, dry cloth to clean the product.Replacing the ear padsFor reasons of hygiene, you should replace the ear pads annually.̈Grasp the edge of the ear pad and pull sharply.̈Attach the new ear pad to the ear cup by pressing firmly around the ear pad until you hear all 12 latches lock intoCAUTIONLiquids can damage the product!Liquids entering the product can short-circuit the electronics or damage the mechanics. Solvents or cleansing agents can damage the surface of the product.̈Keep all liquids far away from the product.Care and maintenanceReplacing the headband paddingsFor reasons of hygiene, you should replace the headband paddings at least once annually.̈Pull the Ziploc type fastening strips of the old headband̈̈Attach the new headband paddings by joining the fasten-ings strips.The tongue and groove of the fastening strips click into place.Care and maintenanceCleaning the sound inlet baskeẗCarefully pull the sound inlet basket from the capsule.̈Moisten a small brush (bristle brush or toothbrush) with isopropyl alcohol.̈inlet basket.̈Allow the sound inlet basket toair dry for approx. 1 hour sothat the remaining isopropylalcohol can evaporate.̈basket to the capsule so that itlocks into place with an audibleclick.When attaching the sound inletbasket, make sure not to coverthe sound inlet.SpecificationsSpecificationsHeadphonesTransducer principle dynamic, closedEar coupling supra-auralFrequency response20 to 18,000 HzImpedance HMD 26-II-600:300 Ω mono/600 Ω stereoHMD 26-II-600S:600 Ω monoHMD 26-II-100:50 Ω mono/100 Ω stereo Characteristic SPL ActiveGard™ switched on:105 dB SPL at 1 kHz, 1 mWActiveGard™ switched off:HMD 26-II-600/-600S:107 dB SPL at 1 kHz, 1 VHMD 26-II-100:115 dB SPL at 1 kHz, 1 V Max. SPL ActiveGard™ switched on:105 dB SPL at 1 kHzActiveGard™ switched off:HMD 26-II-600/-600S:127 dB SPL at 1 kHz, 200 mWHMD 26-II-100:128 dB SPL at 1 kHz, 200 mW THD< 0,5% at 1 kHzContact pressure HMD 26-II-600/-100:approx. 3.9 NHMD 26-II-600S:approx. 4.0 NMicrophoneType BMD 424Transducer principle dynamic, noise-compensating, hyper-cardioid Frequency response40 to 16,000 HzOutput voltage0.4 mV/Pa at 1 kHzImpedance300 ΩGeneral dataTemperature range operation:–15 °C to 55 °Cstorage:–55 °C to 70 °CWeight without cable HMD 26-II-600/-100:approx. 200 gHMD 26-II-600S:approx. 130 gHMD 26-II-600/-600S/-100SpecificationsHMDC 26-II-600HeadphonesTransducer principle dynamic, closedEar coupling supra-auralFrequency response20 to 18,000 HzImpedance600 Ω mono/1200 Ω stereoCharacteristic SPL ActiveGard™ switched on:108 dB SPL at 1 kHz, 1 mWActiveGard™ switched off:110 dB SPL at 1 kHz, 1 VMax. SPL120 dB SPL at 1 kHzActive noisecompensation≥ 18 dB (100 to 300 Hz)Attenuation(active/passive)15 to 30 dBTHD< 0.5% at 1 kHzContact pressure approx. 3.9 NMicrophoneType BMD 424Transducer principle dynamic, noise-compensating, hyper-cardioid Frequency response40 to 16,000 HzOutput voltage0.4 mV/Pa at 1 kHzImpedance300 ΩGeneral dataTemperature range operation: –15 °C to 55 °Cstorage: –55 °C to 70 °CWeight without cable approx. 210 gPower supply for Noise-Gard™2x 1.5 V AA alkaline battery (IEC LR 6) or2x 1.2 V AA rechargeable battery (IEC LR 6), operating time approx. 60 hSpecificationsHME 26-II-600/-100HeadphonesTransducer principle dynamic, closedEar coupling supra-auralFrequency response20 to 18,000 HzImpedance HME 26-II-600:300 Ω mono/600 Ω stereoHME 26-II-100:50 Ω mono/100 Ω stereo Characteristic SPL ActiveGard™ switched on:105 dB SPL at 1 kHz, 1 mWActiveGard™ switched off:HME 26-II-600:107 dB SPL at 1 kHz, 1 VHME 26-II-100:115 dB SPL at 1 kHz, 1 V Max. SPL ActiveGard™ switched on:105 dB SPL at 1 kHzActiveGard™ switched off:HME 26-II-600:127 dB SPL at 1 kHz, 200 mWHME 26-II-100:128 dB SPL at 1 kHz, 200 mW THD< 0.5% at 1 kHzContact pressure approx. 3.9 NMicrophoneType BKE 4-2Transducer principle pre-polarized condenser microphone,omni-directionalFrequency response40 to 20,000 HzOutput voltage 4 mV/Pa ±2.5 dBMax. SPL150 dB at 1 kHz, 0.5 % THDTerminating impedance min. 4.7 kΩSupply voltage 5 to 15 V DCGeneral dataTemperature range operation: –15 °C to 55 °Cstorage: –55 °C to 70 °CWeight without cable approx. 200 gSpecificationsHME 26-II-600(4)/-100(4)HeadphonesTransducer principle dynamic, closedEar coupling supra-auralFrequency response20 to 18,000 HzImpedance HME 26-II-600(4):300 Ω mono/600 Ω stereoHME 26-II-100(4):50 Ω mono/100 Ω stereo Characteristic SPL ActiveGard™ switched on:105 dB SPL at 1 kHz, 1 mWActiveGard™ switched off:HME 26-II-600(4):107 dB SPL at 1 kHz, 1 VHME 26-II-100(4):115 dB SPL at 1 kHz, 1 V Max. SPL ActiveGard™ switched on:105 dB SPL at 1 kHzActiveGard™ switched off:HME 26-II-600(4):127 dB SPL at 1 kHz, 200 mWHME 26-II-100(4):128 dB SPL at 1 kHz, 200 mW THD< 0.5% at 1 kHzContact pressure approx. 3.9 NMicrophoneType BKE 4-4Transducer principle pre-polarized condenser microphone, cardioid Frequency response40 to 20,000 HzOutput voltage 4 mV/Pa ±2.5 dBMax. SPL150 dB at 1 kHz, 0.5 % THDTerminating impedance min. 4.7 kΩSupply voltage 5 to 15 V DCGeneral dataTemperature range operation: –15 °C to 55 °Cstorage: –55 °C to 70 °CWeight without cable approx. 200 gSpecificationsHD 26 PROHeadphonesTransducer principle dynamic, closedEar coupling supra-auralFrequency response20 to 18,000 Hz Impedance100 Ω stereo Characteristic SPL ActiveGard™ switched on:105 dB SPL at 1 kHz, 1 mWActiveGard™ switched off:115 dB SPL at 1 kHz, 1 V Max. SPL ActiveGard™ switched on:105 dB SPL at 1 kHzActiveGard™ switched off:128 dB SPL at 1 kHz, 200 mW THD< 0.5% at 1 kHzContact pressure approx. 3.9 NGeneral dataTemperature range operation: –15 °C to 55 °Cstorage: –55 °C to 70 °C Weight without cable approx. 180 gManufacturer DeclarationsManufacturer DeclarationsWarrantySennheiser electronic GmbH & Co. KG gives a warranty of 24 months on this product.For the current warranty conditions, please visit our website at or or contact your Sennheiser partner.FOR AUSTRALIA ONLYSennheiser goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are enti-tled to a replacement or refund for a major failure and com-pensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.This warranty is in addition to other rights or remedies under law. Nothing in this warranty excludes, limits or modifies any liability of Sennheiser which is imposed by law, or limits or modifies any remedy available to the consumer which is granted by law.To make a claim under this warranty, contactSennheiser Australia Pty Ltd, Unit 3, 31 Gibbes Street Chatswood NSW 2067, AUSTRALIA.Phone:(02)99106700,email:**********************.au. 20Manufacturer DeclarationsAll expenses of claiming the warranty will be borne by the person making the claim.The Sennheiser International Warranty is provided by Sennheiser Australia Pty Ltd (ABN 68 165 388 312), Unit 3, 31 Gibbes Street Chatswood NSW 2067 Australia.CE Declaration of Conformity•RoHS Directive (2011/65/EU)•EMC Directive (2004/108/EC)The declaration is available at .In compliance withEurope EMC EN 55103-1/-2ChinaTrademarksSennheiser and NoiseGard TM professional are registered trademarks of Sennheiser electronic GmbH & Co. KG.Other product and company names mentioned in this instruction manual may be the trademarks or registered trademarks of their respective owners.FCC User InformationNOTE: This equipment has been tested and found to comply with the limits for a Class B digital device of the FCC Rules, pursuant to part 15 of the FCC Rules and ICES 003 of Industry21Manufacturer DeclarationsCanada. These limits are designed to provide reasonable pro-tection against harmful interference in a residential installa-tion. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or tele-vision reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:•Reorient or relocate the receiving antenna.•Increase the separation between the equipment and receiver.•Connect the equipment into an outlet on a circuit dif-ferent from that to which the receiver is connected.•Consult the dealer or an experienced radio/ TV technician for help.Changes or modifications made to this equipment not expressly approved by Sennheiser electronic Corp. may void FCC authorization to operate this equipment.22Sennheiser electronic GmbH & Co. KGAm Labor 1, 30900 Wedemark, Germany Printed in Germany, Publ. 12/15, 552002/A02。
润基生物 PKH26-膜EV标记及纯化试剂盒 (红色) 用户手册说明书

User ManualPKH26-MembraneEVs Labeling &Purification Kit(red)Cat.#辽宁润基生物科技有限公司Liaoning Rengen Biosciences Co.,LtdVersion 1.103/12/2021EXOPPKH26-10EXOPPKH26-20ContentsStorage and Application (2)Product Description (3)List of Components (3)General Information (4)ProtocolsStaining Protocol (4)Purification Protocol (5)Related Products (7)Troubleshooting (7)Technical Support (8)Storage and Application【Storage】The PKH26-Membrane EVs Labeling&Purification Kit(red)is shipped on ice,the components should be stored at recommended temperatures and protected from light.Properly stored kits are stable for6months.please read the instructions before use.【Application】For research use only.Not for use in diagnostic procedures.Product DescriptionPKH26poses highly lipophilic nature and is widely used to stain cell membranes. The dye uniformly labels cells via lateral diffusion in the plasma membrane.The fluorescence of free PKH26is very weak,but greatly enhanced when incorporated into membranes.PKH26emits red fluorescence when excited,its maximum excitation and emission wavelength is551nm and567nm,respectively.Extracellular vesicles(EVs)are membrane-derived particles surrounded by a phospholipid bilayer that are released by cells.We use PKH26dye to efficiently label EVs membranes.Then the excess unbound dyes are fast removed through our excellent Spin Columns from labeled exosome preparations,which separate molecules on the basis of the differences in size.Contaminant removal is easier and faster than traditional clean-up methods such as ultracentrifugation,spin filters.With a highly specific membrane labeling and very low background levels,the kit can be used for most applications that require visualization of labeled EVs for tracking studies.List of ComponentsSpecification:20reactions/Kit(Cat.#EXOPPKH26-20);10reactions/Kit(Cat.# EXOPPKH26-10)Note:1.*Protect labeling dye from light.2.#Keep the Spin Columns upright stand on end.3.The sterilized PBS buffer is not provided in the Kit.Please prepare at least600uL PBS buffer for each reaction.General Information1.This Kit can label exosomes of any resources,including cell culture supernatantsand body fluids(such as serum,plasma,urine,CSF or saliva).2.For better labeling effect,exosomes should be more than1×1010particles/mL.3.It is not recommended to use exosomes extracted by PEG precipitation method,which contains too many impurities.The exosomes extracted by ultracentrifugation,affinity method or our company’s Exosomes Extraction and Purification Kit is preferable.4.Heat the dye at37℃until dissolved completely when the dye has crystallized.5.Fluorescent dyes have quenching problems,please protect dyes from light duringoperating.6.For your safety and health,please wear a lab gown and wear a disposable glovewhen operating.7.The whole procedure is non-aseptic,please filter the labeled exosomes through0.45um filter for sterilization if necessary.ProtocolsStaining Protocol1.Vortex the PKH26Labeling Dye and then instantaneous centrifugation,add5μLPKH26Labeling Dye to50μL Reaction Buffer,and mix well until the dye is dissolved completely.2.Add50μL exosomes samples into dye mixture from step1,and mix well.3.Incubate the mixture for30minutes at37℃,pipet twice during the incubationperiod.!Protect the tubes from light!Purification Protocol(remove excess unbound dye)4.Prepare the Spin Column prior to application of your sample.a)Open the cap of the Spin Column,aspirate preservative buffer from the topof the column with a micropipette and discard it,then remove the outlet plug of the column and proceed to the next step promptly.b)Add200µL sterilized PBS buffer(not provided)to the column and centrifugeat100x g for90seconds.If any PBS remains above the top frit,repeat spin at the same speed with10seconds increments.Discard the eluate.c)Repeat the procedure b)again.!Do not spin at too high speed or for too long as this may desiccate or compress the resin and decrease the function of spin column.5.Carefully apply100µL exosome labeling preparation(from step3above)to thetop of the column.!The maximum capacity of the spin column is100µL.Do not load samples more than100µL.6.Centrifuge at100x g for90seconds.Discard the eluate.7.Place the column into a fresh1.5mL Light-proof Microcentrifuge Tubes(provided).Apply200µL PBS buffer(not provided)to the top of the column.8.Centrifuge at100x g for90seconds.The200µL eluate contains the labeledexosomes.9.According to your needs,dilute the labeled exosomes with correspondingmedium or not.Then filter the labeled exosomes through0.45um filter membrane before performing the downstream experiments.Example Data and ApplicationsA:PKH26labeled EVs B:Dye only(control) Figure1.PKH26labeled EVs and free dye control were analysed by NTA and fNTA. The exosomes from LnCAP cell culture supernatant were concentrated by Exosome Concentration Kit(Cat#EXOCCon05-10),then were labeled and purified with PKH26Membrane EVs Labeling&Purification Kit.A control involving dye but no exosomes was performed in parallel to confirm dye retention by the column.The results of NTA and fNTA indicated that a fairly considerable portion of exosomes were successfully labeled,the free dyes did not aggregate and the unbound dye can be removed successfully through the column.Figure2.Flow cytometry detection of EVs from serum.We captured exosomes from0.5mL serum through magnetic beads coupled to CD63 antibodies.Then the bead-exosomes complexes were labeled with PKH26and analyzed using the flow cytometry.As a control for unspecific binding of the dye to the beads,beads were stained with PKH26without the addition of exosomes.The fluorescence intensity of PKH26-labeled bead-exosomes(green lines)was significantly higher than that of control(black lines).The Kit enables efficient labeling of EVs.Related ProductsTroubleshootingQ1:The fluorescence signal is low than expected?A1:There may be too low amount exosome for labeling,it is recommended to take a larger sample to extract exosome.In addition,fluorescent dye will be quenched, please keep dye from light when operating.Ensure that the columns do not dry out during the procedure.Spinning the column for too long or at too high speed may cause the column to work inefficiently and loss of the labeled exosomes.Q2:How to store the labeled exosomes when not carry out the downstream experiments immediately?A2:The labeled exosomes can be stored at2-8℃for1-2days aware of light,If kept for a long time,it is recommended to store at-80℃avoid repeated freezing and thawing.Q3:Can I increase the elution volume?A3:This is not recommended as it will result in co-elution of excess unbound dye with exosomes.Q4:How I can know the counts of labeled exosomes?A4:The labeled exosomes usually can be detected and counted by fluorescent Nanoparticle Tracking Analysis(fNTA)or flow cytometry.PKH26labeling did not change the size of exosomes actually,but the calculation of particle size is related to many factors,which leads to the measurement value of size of the same labeled exosome sample under the fluorescence mode(fNTA)is larger than that under the conventional mode(NTA).Technical SupportFor more information about our products and to download manuals,please visit our web site:For additional information or technical assistance,please call or email us.Liaoning Rengen Biosciences Co.,Ltd.Add.:Building20th,LIANDO U Valley,Number77Road13th,Shenyang Economic and Technological Development Zone,Liaoning Province,110027Phone:024-3108,6590Fax:024-3108,6589E-mail:General Information:******************Technical Support:*********************Ordering Information:*******************Wechat Public Platform Exosome Research Exchange Group。
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PKH26 红色荧光细胞连接试剂盒(普通细胞膜标记)产品编号:MINI26,MIDE26和PKH26GL室温保存TECHNICAL BULLETIN产品说明PKH26荧光细胞连接试剂盒采用拥有专利的膜标记技术,能够将带有较长脂质尾巴的黄色-橙色荧光染料(PKH26)结合到细胞膜脂质区域上。
试剂盒中提供染色过程中所需的溶剂(稀释液C),该溶剂可以可以在染色过程中,增加染料溶解度和染色效率,同时维持细胞活力。
稀释液C与哺乳动物细胞等渗,且不含去垢剂或有机溶剂,也不含生理盐水和缓冲盐。
根据细胞类型及标记后细胞膜内在的变化,标记后的细胞表面会由均一透亮变得有点状凸起或补丁状。
但在生理范围内,PKH26荧光不受pH的影响,每个细胞的荧光强度与染料标记位置无关。
PKH26荧光在黄色-橙色区域(图一),可用来标记追踪体内外多种细胞。
在细胞毒性分析,荧光蛋白、抗体或DNA染料在该区域发出的紫色、绿色、红色和远红外等,不会与PKH26产生干扰。
PKH26最常被用于基于染料稀释增殖的分析的染料稀释应用,包括建立抗原特异性前体frequecies和正常或肿瘤组织中静止或缓慢干细胞或祖细胞的鉴定。
同时PKH26也可用于监测外来病毒、血小板和其他纳米颗粒的摄入;干细胞分裂过程中膜的分配;细胞-细胞之间膜的转移;细胞吞噬作用;抗原呈递;粘附;通过间隙连接的信号传递;以及组织切片中的神经元迁移。
由于其荧光稳定性较强,PKH26被用于体内细胞追踪研究,特别是在标记的细胞的研究周期超过一周时。
图1. PKH26激发和发射光谱试剂组成*1×10-3M (溶于乙醇)MINI26试剂盒推荐用于小的或初步试验研究,PKH26GL用于体内实验研究所需设备和试剂(试剂盒未提供)·充分分散的单个悬浮细胞·含血清的组织培养基(完全培养基)·无Ca2+,Mg2+和血清的培养基或者缓冲盐(如Dulbecco’s PBS或Hank’s BSS)·血清,白蛋白或其它组织兼容性蛋白·离心管(4-15mL)·温控离心机(1,000×g)·荧光分析设备(荧光读板机,荧光或共聚焦显微镜,流式细胞仪)·层流罩·血球计数板或细胞计数器·载玻片和盖玻片注意事项和免责说明该产品仅用于科研,不用于制药、家庭或其它用途。
请遵照安全数据清单中关于有害及安全操作规范操作。
储存/稳定性PKH26乙醇溶液(货号 P9691)可室温或冷藏保存。
减少蒸发以防止染料浓度升高。
保证染料乙醇溶液瓶盖盖紧。
该染料避光保存,使用前观察是否有结晶。
如出现结晶,37℃热水浴加热,然后超声或震荡直至溶解。
稀释液C可室温或冷藏保存。
如果冷藏保存,使用前复温至室温(过程,步骤A5和A6)。
稀释液C为无菌溶液,不含任何防腐剂和抗生素,其需保持无菌。
不要将染料储存于稀释液C中。
溶于稀释液C的工作液需现配现用,且配好后需立即使用。
操作过程A. 一般细胞膜标记亲脂性染料结合到细胞膜上完成标记。
染色强度是染料浓度和细胞浓度的函数,与渗透性无关。
因此,保证染料添加量不过量非常关键。
过标记的细胞将会导致细胞膜完整性缺失和reduced cell recovery。
下列过程可用于体内体外细胞的标记,包括干细胞、淋巴细胞、单核细胞、内皮细胞、神经细胞或者任何其他细胞。
体内细胞的标记过程需一定的改进,如血小板的染色,或者选择性标记吞噬细胞。
General cell membrane labeling should be performed prior to monoclonal antibody staining. The membrane dyes will remain stable during the monoclonal staining at 4℃;however, capping of the monoclonal antibodies is highly probable if the general cell membranelabeling is carried out at ambient temperature subsequent to antibody labeling.下述染色过程中细胞浓度和染料浓度代表操作的起始浓度。
该浓度被证明适用于多种细胞。
使用者需通过评估染色后细胞活率(如,PI染色)、荧光强度、染色均匀度及是否对所研究细胞功能有影响等,根据实验目的,确定最优的染料浓度和细胞浓度。
注意1:PKH26染色过程中,不能存在叠氮化物或代谢毒性物。
注意2:虽然贴壁细胞也可以染色,但单个悬浮细胞染色均一性更佳。
因此用蛋白酶(trypsin/EDTA)将贴壁细胞消化成单个悬浮细胞后再染色效果更佳。
下列过程最终体积为2mL,PKH26浓度为2×10-6M,细胞浓度为1×107cells/mL。
以下过程均在室温下进行(20-25℃)1.将2×107个细胞于离心管中,用不含血清培养基洗一遍。
注意:血清蛋白和脂质会与染料结合,降低与细胞膜结合的染料浓度。
最好在用稀释液C重悬细胞染色前(第四步)用无血清培养基或缓冲液洗细胞一次(第一步)。
2. 400×g离心5分钟。
注意:P KH26染料不能直接加到离心沉淀中,这样会造成细胞染色不均一和细胞活力降低。
3.离心后,小心吸弃上层清液,剩余上层细胞液体积不超过25μL。
注意:为得到可重复的实验结果,在用稀释液C重悬时,减少残留培养基或缓冲液体积非常重要。
见参考文献9的注意28。
4.加入1mL稀释液C(Catalog NumberG8278),用移液管轻轻吹打混匀,制备2×细胞悬液。
不要用振荡器震荡,不要让细胞在稀释液C中保存太长时间。
注意:生理盐(physiologic salts)的存在会使得染料结团并大幅降低染色效率。
因此,需确保染色时细胞悬浮于稀释液C中,不含培养基或缓冲盐。
5.临染色之前,将4μL PKH26乙醇溶液加入1mL稀释液C中,充分混匀,配制的2×染色液(4×10-6M)。
注意1:为减少乙醇对细胞活率的影响,步骤5加入的染料使得步骤6中乙醇最终浓度不能超过1-2%。
注意2:如果所需染料最终浓度<2×10-6M,需用100%乙醇将PKH26稀释于另一单独的容器中,以确保实验结果的可重复性。
6.快速将1mL 2×细胞悬液(步骤4)加入1mL 2×染色液(步骤5)中,立即用移液管混匀。
最终细胞浓度为1×107/mL,PKH26浓度为2×10-6M。
注意:由于染色瞬间完成,快速将细胞与染料混匀对得到明亮、均匀和可重复的标记结果非常重要。
下列措施有助于得到较优的结果:a.不要将PKH26染料直接加入含2×细胞的稀释液C中。
b. 将2×细胞悬液(步骤4)与2×染色液(步骤5)等体积混合。
c. 调整2×细胞和2×染料的浓度避免染色体积太小(<100μL)或太大(>5mL)。
d. 用电动移液器快速将细胞和染料混匀。
血清移液管混匀速度太慢而使得染色不均匀。
Racking和旋涡震荡混匀同样混匀较慢,染色均一性较差。
e. 分配体积尽量准确,以保证样品与样品之间,实验与实验之间的可重复性。
7.混匀后的染色的细胞孵育1-5 min。
由于染色速度较快,延长孵育时间对实验没有帮助。
注意:让细胞在染色液中停留尽量短的时间,同时保证得到理想的染色强度。
因为稀释液C缺少生理性盐,过长时间的暴露在稀释液C中会造成某些细胞活力降低。
如果不能确定其影响程度,可增加仅作稀释的对照组和只用乙醇而不用染料染色的对照组。
8.加入等体积的血清(2mL)或其它合适的蛋白溶液(如1% BSA)终止反应,孵育 1min以结合多余的染料。
注意1:血清(或等效的蛋白浓度)为最优的终止液。
如果用完全培养基替代,添加体积为10mL。
注意2:不要通过加稀释液C或离心来终止反应。
注意3:不要用无血清培养基或缓冲盐,他们会使染料产生聚集。
染料聚集使清洗过程中无法洗净,使得分析过程中仍存在未标记的细胞。
9.将细胞在20-25℃条件下400×g离心10 min,小心吸弃上清。
用10mL完全培养基重悬,将重悬液转移至另一新的无菌离心管中,20-25℃条件下400×g离心 5 min。
用10mL完全培养基再清洗两遍以除去没结合的染料。
注意1:将重悬液转移至新离心管中,减少了离心管壁残留的染料对洗涤效率的影响;注意2:不要用稀释液C清洗。
10.最后一步清洗后,用10mL完全培养基重悬细胞评估细胞回收率,细胞活率和荧光强度(图2。
离心重悬细胞至所需活细胞浓度。
注意1:染色后的细胞可以用中性甲醛固定,避光条件下,荧光强度至少3周内保持稳定。
注意2:染色荧光强度一般为背景的100-1000倍。
虽然染色的CV值与细胞种类有关,但荧光分布应该尽量均匀对称。
图2. PKH26染色优化MC-38 TIL细胞用上述指定PKH26浓度染色,最终细胞浓度为1×107/ml。
活力(▲)由FITC染色测定,平均荧光强度(●)用流式细胞仪检测。
用20μM PKH26标记后,抗肿瘤TIL特异性和效能没有改变。