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Current Location: Biochemical > Histology > Tissue Staining
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Tissue Staining
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Project Introduction

特殊stainincluding纤维tissuestain (massonstain, days狼猩红stain, VGstainetc.) , 糖类stain (PASstainetc.) , 神经tissuestain (LFBstain, ESstainetc.) , 骨相关stain (Von Kossastain, 甲苯胺蓝stain, Goldner三色法stainetc.) , 脂质stain (油红Ostain) , 植物标本stain (甲苯胺蓝stain, PBSstainetc.) , 具体需求can联系技术老师.


Project Cases

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Sample Requirements

1.动物解剖后, 尽快取材, 放入10倍自身体积of固定液中, 并选取合适of标本瓶, 充分固定24hours以上, 取材及固定时避免挤压, 造成人for损伤;

2.心肝脾肺肾, 肿瘤etc.常规tissue需用4%多聚甲醛固定后送样, 眼球, 脂肪, 睾丸etc.需用特殊固定液固定, 骨头需脱钙后进行实验;

3.送样时备注切片要求, 对位置have特殊要求of, such as脑. 请附带参考图;

4.若need白片, 请备注切片数量;

5.需注明所送样品种属 (大鼠, 小鼠) 及tissue类型 (such as心, 肝, 脾, 肺, 肾, 肿瘤, 肠etc.) , have自带荧光of, 备注好荧光类型;

6.拍照请写明拍照倍数, 拍照部位, 详细描述拍照目of, 或可provide相应参考文献;

7.做免疫组化, 免疫荧光, 需自行provide经过validateof一抗antibody来做, 若needweprovideantibodyof, 请先Contact Usof技术人员咨询实验室is否have相关antibody.


FAQ

    1.切片质量: 切片must完整, 均匀, 平整, 无气泡, 无褶皱, have利于stain时of冲洗and切片of牢固附黏. such as果切片不平整, 会导致stain不均匀, 颜色深浅不一.

    2.固定and脱水: tissue固定要新鲜, 离体oftissue应尽快进行固定, 以防自溶and腐败. 固定时间and固定液浓度要适当, 避免tissue硬化and收缩. 脱水要彻底干净, tissue块 取材不能太大过厚, 以防脱水不完全.

    3.stain前of准备: stain前应将切片in适当of缓冲液中浸泡, 调节pH值至适宜范围, 以防止tissue酸化或碱化影响cell核着色. 同时, 切片needthrough一系列of酒精浓度 逐渐脱水, 并用透明剂such as苯酚, 二甲苯etc.进行透明化, 以便于stain.

    4.stain操作: stain时间长短needaccording to染剂对tissueofstain作用, 室温条件, 切片厚薄, 固定液of类别, 染液of新旧etc.因素进行调节. stain过程中要控制分色时间, generallyin显微镜下observecell核stain清楚而cell质基本无色for佳. 分化也is关键步骤, need掌握好分化时间and分化剂ofusing.

    5.封片andobserve: 封片时要用中性树脂, 盖片要大于tissue块of面积, 以防日后褪色. observe时needin显微镜下observestain效果, such ashaveneed可进行调整.


 
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