CN111122630A - 一种双臂夹持式载网架的制备方法及装置 - Google Patents
一种双臂夹持式载网架的制备方法及装置 Download PDFInfo
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Abstract
本发明涉及一种双臂夹持式载网架的制备方法和装置。双臂夹持式载网架制备方法步骤依次为:首先将硬质材料物制成相邻两支架臂位于同一平面且呈夹持构造的支架;然后将支架放入熔化的附着液中,以得到浸蘸有附着液的支架;最后收回浸蘸有附着液支架,待附着液沿支架臂凝固成附着层。本发明方法对应的装置包括支架和附着层两部分,附着层附着在支架相邻两支架臂间呈夹持构造部位的内侧。
Description
技术领域
本发明涉及一种用于生物透射电子显微镜固定载样金属网的载网架,尤其涉及在样品染色环节中高通量固定载样金属网的装置。
背景技术
金属网是透射电镜中承载样品的工具,尤以铜网最为常见。铜网由两部分构成:一是边缘宽为0.2mm左右的铜环,二是铜环内部的镂空网格。整个铜网厚度约18μm,铜网的正面有一层有机方华膜,可有效支撑切片样品。由于生物样品的染色环节需要在铜网上进行,而染色时,通常先用镊子夹取铜网边缘0.2mm环宽处,若此过程中镊子夹到铜网网格区,易夹破依附在网格表面的方华膜,进而破坏承载在铜网上的细胞切片,影响观察;且由于每次处理的切片量较大(4~20片,甚至更多),若对每张铜网逐一染色,会导致每张切片的染色时间不容易统一以及切片因反复操作而易受到机械损伤的问题。
为实现每张切片染色时间的统一并改善切片因反复操作而受到机械损伤的问题,现有技术中存在一种对铜网进行批量染色的装置。中国发明专利说明书CN105910875A就公开了这种可对铜网进行批量染色的装置。该装置包括载网主体和辅体,其中载网主体是固定载样铜网的部分,载网辅体是固定和支撑载网主体的部分。载网主体是由硬质层和软质层两部分构成,在硬质层上覆盖一层软质层,硬质层横截面为弧形或夹角型,利用分布在弧形开口或夹角型开口处两侧的软质层将铜网固定在装置中。
上述装置中,载网主体采用半封闭式结构,致使该装置在整体上体积较大,最终导致在使用该装置进行批量染色时需要使用较多的染液;且除装置开口外,载网主体其余部分与载网间会形成凹槽或者狭缝,当装置完成染色操作从染液中脱离时,装置会带出部分染液,从而进一步加大染剂的损耗。此外,载网架半封闭式结构所形成的遮挡,会增加染色后清洗及风干环节的时长。最后,上述装置的制备对模具依赖程度较高;且由于软质层是处于该装置的半封闭式包围结构内部,要实现软质层的附着和夹持增效需要复杂的工艺。
发明内容
本发明主要解决的技术问题是提供一种降低染料损耗、提升清洗及风干环节效率、简化装置制备工艺且能够实现铜网批量染色的双臂夹持式载网架的制备方法和装置。
为解决上述技术问题,本发明提供了一种双臂夹持式载网架制备方法,包括以下步骤:
a.将硬质材料物制成相邻两支架臂位于同一平面、呈夹持构造的支架;
b.将支架放入熔化的附着液中,以得到浸蘸有附着液的支架;
c.收回浸蘸有附着液的支架,待附着液凝固成附着层。
进一步的,还包括降低附着层损耗、提高装置效能的方法,具体的说,通过削除附着于装置中相邻两支架臂内侧以外的附着层,不但能够实现对附着层进行最大程度的回收利用,还能降低铜网环宽与蜡层接触面积,使得压强更大,铜网易***和拔出。
进一步的,所述附着层,还包括调整其厚度的方法,具体的说,所述附着层厚度随附着液温度的增高而降低、随浸蘸次数增加而增加、随浸蘸时间增长而增加、随除最后一次外各次浸蘸后蜡液凝固程度的增高而增加。
一种双臂夹持式载网架装置,由支架和附着层构成,附着层附着在支架相邻两支架臂间呈夹持构造部位的内侧。
进一步的,所述支架,由硬质材料物组成,为附着层提供附着及成型的基础面。
进一步的,所述附着层,由软质材料物组成,软质附着层对铜网起到固定和支撑作用。
进一步的,所述装置主体截面,优选呈单U形。
进一步的,所述装置主体截面,优选呈平行螺旋式U形。
进一步的,所述装置主体界面,优选呈闭合环形。
综上所述,本发明具有以下有益效果:
本发明通过消除装置的多余架体结构,从而减少了装置在使用时的占位体积,进而减少了染色时所需的染液量。同时,本发明采用的开放式结构,有效的避免了装置与铜网间形成凹槽或狭缝,进而使染液随装置的带出量接近零。另外,通过采用开放式结构,还提高了染色后清洗环节和风干环节的效率。再者,本发明所涉装置制备工艺更为简易,制备支架时几乎可实现对模具的零依赖;附着层的夹持增效可通过沿支架壁直接削除***多余蜡层等便捷工艺快速实现。
附图说明
附图是用来提供对本发明的进一步理解,并且构成说明书的一部分,与下面的具体实施方式一起用于解释本发明,但并不构成对本发明的限制。在附图中:
图1是增效前的单U形载网架装置及装置横截面图。
图2是增效后的单U形载网架装置及装置横截面图。
图3是载有铜网的单U形载网架装置立体示意图。
图4是载有铜网的平行螺旋式U形载网架装置立体示意图。
图5是载有铜网的闭合环形形载网架装置立体示意图。
图6是铜网批量染色立体示意图。
具体实施方式
下面结合附图和实施例,对本发明的具体实施方式作进一步详细描述。以下实施例,用于说明本发明,但不用来限制本发明的范围。
实施例1
本发明公开了一种双臂夹持式载网架的制备方法,具体包括如下步骤:
1.预制支架
将硬质材料物(如铁丝、钢丝、玻璃、塑料等)绕成至少包含两个支架臂的支架,且支架的相邻两支架臂位于同一平面、呈夹持构造、间距为3-4.5mm,支架整体形状为单U形、平行螺旋式U形或闭合环形等,以提供蜡层附着及成形的基础。
2.附着蜡层
a.将固体蜡(食品级蜜蜡或牙蜡等)置入容器中进行加热;
b.待固体蜡加热至完全熔化状态后,将支架放入蜡液中蘸取蜡液;
进一步的,可通过控制支架浸蘸蜡液的时间、次数、蜡液的温度、除最后一次外各次浸蘸后蜡液的凝固程度,进而调整支架蜡层厚度。
更进一步的,如表1所示,在单次浸蘸时间、浸蘸次数及除最后一次外各次浸蘸后蜡液凝固程度均相同的条件下,所述蜡层厚度与蜡液温度成反比;在蜡液温度、单次蘸取时间及除最后一次外各次浸蘸后蜡液凝固程度均相同的条件下,所述蜡层厚度与浸蘸次数成正比;在蜡液温度、单次蘸取时间及除最后一次外各次浸蘸后蜡液凝固程度均相同的条件下,所述蜡层厚度与浸蘸次数成正比;在蜡液温度、单次蘸取时间及浸蘸次数均相同的条件下,所述蜡层厚度与除最后一次外各次浸蘸后蜡液凝固程度成正比。
表1不同条件下的蜡层厚度表
d.将支架从蜡液中取出,待附着在支架上的蜡液自然凝固;
3.降耗增效
如图1和图2所示,以支架所呈的水平面为基准,保留附着在支架中相邻两支架臂间呈夹持构造部位内侧的蜡层,削掉支架正面和背面所附着的蜡层,从而降低与铜网接触的蜡层的厚度,减小了铜网***蜡层时的接触面积,增大了网与蜡层接触点的压强,便于铜网的***及拔出并能够减少铜网的变形;削除附着在支架两支架臂外侧边缘的蜡层,以进行蜡的回收利用,减少蜡的消耗。
装置相邻两支架臂间内侧蜡层的理想工作厚度为0.5~1mm,蜡层间的理想空隙为1~2.6mm。当支架整体所吸附的蜡层过厚或支架下方所附着的蜡层过厚(支架从蜡液中取出后,其所附着的蜡液在会重力的作用下向下流动,从而导致支架上所附着的蜡层上薄下厚)时,可以根据实际需求削掉装置相邻两支架臂间所附着蜡层的过厚部分,以提高装置的功效或利用率。
实施例2
图3是依据本发明方法所制备的载有铜网的单U形载网架装置示意图,该装置由一个单U形支架1和附着层2构成,支架1所包含的两支架臂为附着层2提供附着及成形的基础面,附着层2对铜网3提供有效的固定和支撑作用,铜网3的铜环部分可***并固定在在附着层2内侧,并沿支架臂长轴依次排列。具体的说,单U形支架1由硬质材料物(如铁丝、钢丝、玻璃、塑料等)组成,附着层2由蜡层(食品级蜜蜡或牙蜡等)组成且附着在单U形支架1的U形构造内侧,单U形支架1的两支架臂内侧间距为3~4.5mm,附着层2内侧间距为1~2.6mm,铜网3边缘是一个外径3mm、内径2.6mm,环宽为0.2mm左右的铜环;环宽以内有50~400目不等的镂空网格;整个铜网3厚度约18μm;铜网3正面有一层有机方华膜,可有效支撑切片样品。
图4是依据本发明方法所制备的载有铜网的平行螺旋式U形载网架装置示意图,该装置由一个平行螺旋式U形支架1和附着层2构成,支架1内的相邻两支架臂为附着层2提供附着及成形的基础面,附着层2对铜网3提供有效的固定和支撑作用,铜网3的铜环部分可***并固定在附着层2内侧,并沿着支架臂长轴依次排列。具体的说,平行螺旋式U形支架1由硬质材料物(如铁丝、钢丝、玻璃、塑料等)组成,附着层2由蜡层(食品级蜜蜡或牙蜡等)组成且附着在平行螺旋式U形支架1的U形构造内侧,平行螺旋式U形支架1的相邻两支架臂内侧间距为3~4.5mm,附着层2内侧间距为1~2.6mm,铜网3边缘是一个外径3mm、内径2.6mm,环宽为0.2mm左右的铜环;环宽以内有50~400目不等的镂空网格;整个铜网3厚度约18μmμm;铜网3正面有一层有机方华膜,可有效支撑切片样品。
图5是依据本发明方法所制备的载有铜网的闭合环形载网架装置示意图,该装置由一个闭合环形支架1和附着层2构成,支架1的两支架臂为附着层2提供附着基础面,附着层2对铜网3提供有效的固定和支撑作用,铜网3的铜环部分可***并固定在附着层2内侧,并伴着支架臂长轴依次排列。具体的说,闭合环形支架1由硬质材料物(如铁丝、钢丝、玻璃、塑料等)组成,附着层2由蜡层(食品级蜜蜡或牙蜡等)组成且附着在闭合环形支架1的两支架臂内侧,闭合环形支架1的两支架臂内侧间距为3~4.5mm,附着层2内侧间距为1~2.6mm,铜网3边缘是一个外径3mm、内径2.6mm,环宽为0.2mm左右的铜环;环宽以内有50~400目不等的镂空网格;整个铜网3厚度约18μmμm;铜网3正面有一层有机方华膜,可有效支撑切片样品。
图6是依据本发明所进行的铜网批量染色示意图,固定在附着层上的相邻铜网间距大于2.5mm,以降低染液4的带出;装置载有铜网3的部分浸入在染液4的液面下方,以实现对铜网的批量染色。
Claims (8)
1.一种双臂夹持式载网架的制备方法,其特征在于,包含以下步骤:
a.将硬质材料物制成支架1,所述支架包括至少两个支架臂,且相邻两支架臂位于同一平面并呈夹持构造;
b.将支架放入熔化的附着液中,以得到浸蘸有附着液的支架1;
c.收回浸蘸有附着液的支架1,待附着液凝固成附着层2。
2.根据权利要求1所述的方法,其特征在于,步骤c还包括削除附着在支架1相邻两支架臂内侧以外的附着层2。
3.一种双臂夹持式载网架装置,包括支架1和附着层2,其特征在于,所述支架1由至少两个支架臂和连接部构成,所述连接部两侧的相邻两支架臂位于同一平面且呈夹持构造,所述附着层2附着在支架相邻两支架臂间呈夹持构造部位的内侧。
4.根据权利要求4所述的装置,其特征在于,所述支架1,由硬质材料物组成。
5.根据权利要求4所述的装置,其特征在于,所述附着层2,由软质材料物组成。
6.根据权利要求4所述的装置,其特征在于,所述装置纵切面呈单U形。
7.根据权利要求4所述的装置,其特征在于,所述装置纵切面呈平行螺旋式U形。
8.根据权利要求4所述的装置,其特征在于,所述装置纵切面呈闭合环形。
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EP20912468.4A EP4019952A4 (en) | 2020-01-07 | 2020-01-17 | METHOD FOR PREPARING DOUBLE ARM CLAMPING TYPE MESH SUPPORT FRAME AND DOUBLE ARM CLAMPING TYPE MESH SUPPORT FRAME APPARATUS |
PCT/CN2020/072580 WO2021138934A1 (zh) | 2020-01-07 | 2020-01-17 | 一种双臂夹持式载网架的制备方法及装置 |
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