備有庫存現貨，隨時發貨

ORFLO Technologies總部位于美國愛達荷州，擁有多項國際**技術，如微流控、生物信號向電子信號轉化、數據采集和分析、配套分析軟件設計等，**于現代細胞分析技術**和開發,在國際細胞分析技術競爭中處于**的地位。

ORFLOTechnologies 2010年開發****個掌上細胞計數儀，產品一經推出，很快受到業內廣泛認可。目前推出*新代迷你細胞計數儀Moxi Z和掌上流式細胞儀MOXI FLOW。

 世聯博研（北京）科技有限公司正式做為Orflo中國代理商，主要產品包括Moxi Flow微型流式細胞儀及MoxiZ細胞計數產品系列等。

美國ORFLO公司*新推出的一臺手持式微型流式細胞儀。她的外觀靈巧，完全可將她托放與掌中，便于移動，讓你的實驗地點不再被龐大的儀器所束縛；操作便捷，無需受過專業培訓就可以完成操作，因為所有操作就只有兩步（Plug&Play），上機10秒后就可在彩色觸屏顯示器上看到實驗結果，簡便至*。價錢方面，對于絕大多數的實驗室來說，如果想擁有她，從經濟角度上講是完全可行的。看到這里估計讀者已經迫不及待的想進一步了解和認識她了，下面就由筆者向各位介紹這位靈動、聰慧的姑娘 — MoxiFlow(圖1)。

內 外 兼 修

對于它外觀的小巧此處不再累述（大小規格僅為26×15×15cm），圖片比文字更有說服力（圖2）；儀器內置4500mAh鋰電池，便于在實驗室內的移動和隨意放置；內置軟件程序，480X320pix彩色顯示器可清晰呈現數據結果，讓您一目了然。至于檢測方式，它采用了兩種檢測的**融合—庫爾特電阻原理與熒光檢測原理：

圖2 手持式流式細胞儀

一、 庫爾特原理（用于檢測細胞大小及數量）
當懸浮于液體中的細胞通過小孔管時，會取代相同體積的液體，在恒定電流設計的電路中導致小孔管內外的電阻發生瞬時變化，產生電位脈沖，而這種脈沖信號的大小和次數與細胞的大小與數目成正比，因此可用于細胞計數及大小的檢測。這正是談到流式細胞儀的歷史而不可避開的庫爾特原理，庫爾特電阻檢測法屬于對細胞個體的測量和三維的測量，不但能準確測量細胞的大小，更能對細胞的**數量及濃度進行測量。利用庫爾特原理檢測細胞大小更近真實，而不像激光衍射散射原理會受到染料顏色和濃度的影響。流式細胞儀（FCM,Flow cytometry）,從字面上的cytometry (細胞計數) 也看得出它與細胞計數有著一定的淵源,Wallace Coulter于1947年發明了庫爾特原理，用于血細胞分析，隨后1953年Coulter公司便推出了世界上**臺流式細胞分析儀。而以庫爾特原理為主導技術開發細胞計數儀的ORFLO公司在此推出這樣一臺眾望所歸的微型流式細胞儀也便是名正言順了，并利用其**的薄膜傳感器技術對細胞進行數量、直徑等檢測，獲取更加精準可靠的數據。

二、 熒光檢測（用于檢測熒光信號）
MoxiFlow配置了一根532nm固態激光器和一個PMT，檢測光譜區域為590/40nm ( 可檢測染料：R-PE, PI, Nile Red， Ethidium Homodimer I & III, Sytox Orange等 )。對細胞大小檢測的同時以傳統流式的方法利用激光激發標記在細胞上的特異性熒光染料，并通過PMT進行檢測，獲取熒光信號。

MoxiFlow 即利用了以上兩種檢測方式相結合的方式，在細胞流經小孔管時，同時對細胞的大小、數目及熒光信號進行**的檢測（如圖3）。

化 繁 為 簡

一、 簡易化操作
微流體系膜片內設細胞過濾功能，所以對于準備上機的細胞懸液無需進行濾網的過濾，直接即可加入膜片孔內準備實驗（如圖4），此外膜片的窗口處為非透明材質做成，形成小的避光暗室，避免了熒光檢測過程中熒光猝滅現象；僅需兩步即可完成所有操作步驟。一，將細胞微流膜片插入檢測口；二，將50μL樣品加入檢測孔內，點擊Play即可開始檢測 （如圖5~6）；僅10秒鐘即可顯示出實驗結果。輸出數據的格式為標準的流式數據格式FCS3.1或.BMP的圖像輸出格式，結果數據可以以散點圖及直方圖（如圖7）的形式表現出來，并可輕松用手觸摸。

二、 程序化實驗
MoxiFlow將較為常用的流式實驗程序化為軟件中的多個選項 （如圖8，并在不斷更新升級中），在實驗室過程中只需點擊要進行的實驗名稱即可完成相應的數據檢測，如： 細胞活性檢測、 細胞凋亡檢、 多參數分析、細胞大小檢測、熒光珠子檢測、 細胞周期檢測（coming soon）等，使用系統內相應實驗程序即可，應用哪里，點哪里，無需再對電壓、熒光補償等參數進行調整。沒有經過任何專業培訓的人員也可輕松操作完成，可見MoxiFlow解放了科研人員對于流式細胞儀使用操作的繁瑣性及專業性，是對流式細胞儀的一次嶄新的**。

性 能 表 現

為了展現出MoxiFlow優良的檢測性能，下面分別將MoxiFlow與臺式流式細胞儀、成像細胞分析系統、血細胞計數板進行比較。結果發現，對于細胞的計數誤差要低于其他類型產品，而計數平均值的變異系數（CV）也是*小的，可見 MoxiFlow對于細胞數量的檢測表現優良(圖9 左)；對于細胞活性的檢測誤差值與平均活性檢測的波動性（CV）都是*小的，即在對細胞活性檢測的實驗中，MoxiFlow依然很好地保證了數據的精準度和穩定性（圖9 右）。

下圖是MoxiFlow細胞凋亡實驗的結果圖，此實驗是用喜樹堿（一種****）對Jurkat 細胞（白血病細胞）分別刺激不同時間（2h，6h，7h）所得到的散點圖。可以評測出該**對Jurkat細胞凋亡的作用，并給出各個群落的細胞數量、細胞濃度、占細胞總數的百分比及細胞的平均直徑等信息。

總結：

外形的小巧并沒有影響MoxiFlow的應用性能，所謂，麻雀雖小五臟俱全。它可幫你擺脫對流式細胞儀“想愛不敢愛”的矛盾心理，讓流式不再高不可攀，讓細胞在你的掌中流動。

英文介紹：

Moxi Flow

World's most affordable flow cytometer, ideal for single color flow, cell health and cell QC.

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Moxi GO & Moxi GO II

Increase the pace of scientific discovery with ORFLO’s next generation Moxi GO? & Moxi Go II? Next Gen Flow Cytometers.

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Product Code: MXF002 Moxi Flow instrument with USB power cord, US style USB power adapter, and Type MF-S cassette pack
Supporting Resources Application Notes Brochures Protocols Quick Start Guides Software Downloads Technical Notes User Manuals Customer Data Product Videos Related Products Reagents Assays Accessories Antibodies Cassettes Instruments Overview   Specifications   How It Works   Customer Data “Plug and Play” Simplicity - Moxi Flow is the World’s first SMART FLOW CYTOMETER. “Plug and Play” Simplicity Moxi Flow is a fully automated, cassette-based flow cytometer that combines unparalleled ease of use with the precision and accuracy normally only associated with more expensive flow cytometers. This ultra-small instrument uses patented microfluidic thin-film cassettes that enable automatic load and measure operation. The Moxi Flow is also the only flow cytometer that auto-aligns the laser to each cassette to enable highly repeatable and robust results every time. No PMT gain adjustment is required. No warm up time required. Just insert a cassette, pipette your sample, and read the results in 10 seconds. Versatile Select from one of our standard applications (i.e., Cell Counts, Viability, Apoptosis) or run the system in open “2 Parameter Flow Cytometry” mode for the ultimate in assay flexibility. This miniature open platform can be used for your most common cell assay needs, or to develop sophisticated, custom assays right at your fingertips. Access your FCS compatible Data with “USB-on-the-Go” Moxi Flow generates data using the industry standard FCS 3.1 format so you can open and analyze your results using your ORFLO’s VESTIGO software (coming soon), or any other standardized flow cytometry analysis software. Data is transferred simply and easily to a PC or MAC using a mini-USB cable and the on board “USB-on-the-Go” functionality. No additional software is required to perform the data transfer. Cell Count with >95% accuracy Viability with PI Apoptosis with Annexin V Precise cell/particle (Coulter Principle) Blood analysis (RBC counts, WBC counts, CD4 counts, etc.) Somatic Cell Counts in Milk Cell Count and Viability Flow cytometry based viability tests with simultaneous Coulter Principle Cell Counts and Cell Volume Below are screen shots taken directly from the Moxi Flow. The left screen shot is a scatter plot of fluorescence intensity of the Propidium Iodide (PI), used to select for dead cells, versus cell volume on the x axis, converted to cell diameter. The middle screen shot is cell volume only, which shows the cell volume heterogeneity of the cancer line population along with subtle shift in the mean cell volume of the dead cell population. The right screen shot shows the fluorescence intensity of the baseline viable cell population versus the dead cell population. Propidium Iodide was used to detect the exact cell count of the dead, non viable cells. The viability percent is displayed in the yellow text box. The concentration and volume of the viable live cells and non viable cells is displayed in the black text boxes.   Apoptosis (Annexin V) and Cell Count Below are screen shots taken directly from the Moxi Flow. The left screen shot is a scatter plot of fluorescence intensity of the Annexin V PE versus cell volume on the x axis, converted to cell diameter. The right screen shot is cell volume only, which shows the cell volume heterogeneity of the cancer line population. Annexin V conjugated with PE was used to detect the exact number of cancer cells that were apoptotic. The percent of apoptotic cells is displayed in the yellow text box. The concentration and volume of the non-apoptotic and apoptotic cells is displayed in the black text boxes. This together with the above cell viability and cell count tests gives a read of over all cell health.   Cell Count and Transfection Efficiency Checks Transfection Efficiency Flow Cytometery Below are screen shots taken directly from the Moxi Flow. The left screen shot is a scatter plot of fluorescence intensity of the RFP (tdTomato, DS Red, Nile Red, etc.) versus cell volume on the x axis, converted to cell diameter. The right screen shot is fluorescence only, which shows heterogeneity the transfect RFP within the cancer line population. The RFP in this case was tdTomato. In this example there were two distinct populations of the transfected cell lines. Both are 100% positively transfected. It is possible that this could be an inidication of cell cycle, the lower population could be in G0/G1 phase with approximately half the DNA of the upper population, G2/M phase.   Rapid Immuno Profiling of White Blood Cells, PBMC’s, Whole Blood Immono Profiling Flow Cytometry In all tests shown in the figures below Tonbo PE conjugated flow cytometery antibodies were used. In the screen shots below the PBMC sample was screened for the number of CD2 positive versus CD2 negative cells, using Tonbo’s PE Anti Human CD2 antibody (RPA-2.10). The RPA-2.10 antibody reacts with human CD2, an approximately 50 kDa glycoprotein, and a member of the Ig superfamily. CD2, also known as LFA-2, is a receptor for CD58 in the human and is expressed on the cell surface of 80-90% of human peripheral blood lymphocytes, a subset of NK cells, and all mature T cells. CD2 mediates lymphocyte adhesion and is involved in T cell activation. RPA-2.10 is reported to block mixed lymphocyte reaction. Please choose the appropriate format for each application. The Moxi Flow Flow Cytometer Cell Counter (Coulter Principle based) is able to clearly separate out the CD2 positive cells versus the CD2 negative cells, delivering a highly accurate and precise count of the two populations. The fold difference between the positive and negative white blood cells is a simple relative protein quantitation method.   In the screen shots below the PBMC sample was screened for the number of CD3 positive versus CD3 negative cells, using Tonbo’s PE Anti Human CD3 antibody (Hit3a). The Hit3a antibody is specific for human CD3e, also known as CD3 epsilon, a 20 kDa subunit of the T cell receptor complex, along with CD3 gamma and CD3 delta. These integral membrane protein chains assemble with additional chains of the T cell receptor (TCR), as well as CD3 zeta chain, to form the T cell receptor – CD3 complex. Together with co-receptors CD4 or CD8, the complex serves to recognize antigens bound to MHC molecules on antigen-presenting cells. These interactions promote T cell receptor signaling (T cell activation), inducing cell proliferation, differentiation, production of cytokines or activation-induced cell death. CD3 is differentially expressed during thymocyte-to-T cell development and on all mature T cells. The Hit3a antibody is a widely used phenotypic marker for human T cells. In addition, binding/cross-linking of Hit3a antibody to CD3e can induce cell activation. The antibody has also been demonstrated to be cross-reactive with Chimpanzee CD3. Please choose the appropriate format for each application. The Moxi Flow Flow Cytometer Cell Counter (Coulter Principle based) is able to clearly separate out the CD3 positive white blood cells versus the CD3 negative white blood cells, delivering a highly accurate and precise count of the two populations. The fold difference between the positive and negative white blood cells is a simple relative protein quantitation method.   In the screen shots below the PBMC sample was screened for the number of CD4 positive (t cells) versus CD4 negative cells, using Tonbo’s PE Anti Human CD4 antibody (OKT4). The OKT4 antibody reacts with human CD4, a 59 kDa protein which acts as a co-receptor for the T cell receptor (TCR) in its interaction with MHC Class II molecules on antigen-presenting cells. The extracellular domain of CD4 binds to the beta-2 domain of MHC Class II, while its cytoplasmic tail provides a binding site for the tyrosine kinase lck, facilitating the signaling cascade that initiates T cell activation. CD4, and co-receptors CCR5 and CXCR4, may also be utilized by HIV-1 to enter T cells. Human CD4 is typically expressed on thymocytes, some mature T cell populations such as Th17 and T regulatory (Treg) cells, as well as on dendritic cells. The OKT4 antibody is widely used as a phenotypic marker for CD4 expression. It is cross-reactive with CD4 in several non-human species, including Chimpanzee, Cynomolgus and Rhesus. This antibody recognizes a different epitope, and thus does not block binding of, the alternative Anti-Human CD4 antibody clone RPA-T4 (Reinherz EL, et al. 1979. Proc. Natl. Acad. Sci. 76:4061-4065) The Moxi Flow Flow Cytometer Cell Counter (Coulter Principle based) is able to clearly separate out the CD4 positive white blood cells versus the CD4 negative white blood cells, delivering a highly accurate and precise count of the two populations. The fold difference between the positive and negative white blood cells is a simple relative protein quantitation method.   In the screen shots below the PBMC sample was screened for the number of CD8 positive versus CD4 negative cells, using Tonbo’s PE Anti Human CD8 antibody (SK1). The SK1 antibody is specific for the 32-34 kDa alpha chain of human CD8, known as CD8a or CD8 alpha. CD8a can form a homodimer (CD8 alpha-alpha), but is more commonly expressed as a heterodimer with a second chain known as CD8b or CD8 beta. CD8 acts as a co-receptor for antigen recognition and subsequent T cell activation that is initiated upon binding of the T cell receptor (TCR) to antigen-bearing MHC Class I molecules. The cytoplasmic domains of CD8 provide binding sites for the tyrosine kinase lck, facilitating intracellular signaling events that lead to T cell activation, development, and cytotoxic effector functions. CD8+ cytotoxic T cells (CTLs) play an important role in inducing cell death of tumor cells, as well as cells infected by virus, bacteria or parasites. The SK1 antibody is widely used as a phenotypic marker for CD8 on cytotoxic T cells, thymocytes, as well as on certain cell types that do not also express the TCR, including some NK cells and lymphoid dendritic cells. It is cross-reactive with CD8 in several non-human species, including Baboon, Chimpanzee, Cynomolgus and Rhesus. If used together with an alternative Anti-Human CD8a clone, RPA-T8, the SK1 antibody will not block binding of RPA-T8 to CD8a. The Moxi Flow Flow Cytometer Cell Counter (Coulter Principle based) is able to clearly separate out the CD8 positive white blood cells versus the CD8 negative white blood cells, delivering a highly accurate and precise count of the two populations. The fold difference between the positive and negative white blood cells is a simple relative protein quantitation method.   In the screen shots below the PBMC sample was screened for the number of CD11 positive versus CD11 negative cells, using Tonbo’s PE Anti Human CD8 antibody (ICRF44). The ICRF44 antibody reacts with human CD11b, also known as integrin alpha M. This 165-170 kDa cell surface glycoprotein is part of a family of integrin receptors that mediate adhesion between cells (cell-cell) and components of the extracellular matrix, e.g. fibrinogen (cell-matrix). In addition, integrins are active signaling receptors which recruit leukocytes to inflammatory sites and promote cell activation. Complete, functional integrin receptors consist of distinct combinations of integrin chains which are differentially expressed. Integrin alpha M (CD11b) assembles with Integrin beta-2 (CD18) into a receptor known as Macrophage Antigen-1 (Mac-1) or complement receptor type 3 (CR3). This receptor binds and induces intracellular signaling through ICAM-1, ICAM-2, ICAM-3 and ICAM-4 on endothelial cells and can also facilitate removal of iC3b bearing foreign cells. The ICRF44 antibody is widely used as a marker for CD11b expression on macrophages, granulocytes, and subsets of NK cells. It is reported to be cross-reactive with a number of non-human species including Baboon, Chimpanzee, Cynomolgus, Rhesus and Swine. The Moxi Flow Flow Cytometer Cell Counter (Coulter Principle based) is able to clearly separate out the CD11 positive white blood cells versus the CD11 negative white blood cells, delivering a highly accurate and precise count of the two populations. The fold difference between the positive and negative white blood cells is a simple relative protein quantitation method.   In the screen shots below the PBMC sample was screened for the number of CD19 positive b cells versus CD19 negative white blood cells, using Tonbo’s PE Anti Human CD19 antibody (SJ25C1). The SJ25C1 antibody reacts with human CD19, a 95 kDa glycoprotein which acts as a co-receptor, along with CD21 (CR2), CD81 (TAPA-1) and CD225 (Leu13), in support of the functional B cell receptor (BCR). This complex provides antigen-specific recognition and subsequent activation of B cells to proliferate and differentiate into antibody-secreting cells (plasma cells) or memory B cells, which are crucial for secondary antigen encounter. Upon activation and tyrosine phosphorylation, the CD19 molecule can provide an anchor for cytoplasmic signaling proteins such as GRB2, SOS or PLCG2. CD19 is a lineage-differentiation marker, as its expression is detectable at the earliest B cell stages, through development, and is finally lost upon transition to mature plasma cells. The SJ25C1 antibody is widely used as a phenotypic marker for CD19 expression on B cells, as well as on dendritic cell subsets. The Moxi Flow Flow Cytometer Cell Counter (Coulter Principle based) is able to clearly separate out the CD19 positive white blood b cells versus the CD19 negative white blood cells, delivering a highly accurate and precise count of the two populations. The fold difference between the positive and negative white blood cells is a simple relative protein quantitation method.

Moxi GO & Moxi GO II Product Code: MXG001_MXG002_MXG102 Moxi GO 532nm laser (MXG001) 1 PMT - 561nm/LP filter (e.g. PE, PI) - US Version Moxi GO 488nm laser (MXG002) 1 PMT - User-swappable 525/45nm (e.g. FITC, GFP) or 561nm/LP (PE,PI) filters Moxi GO II 488nm laser (MXG102) 2 PMT system 525/45nm (e.g. FITC, GFP) and 561nm/LP (PE, PI) See Product Specifications Add To Wish List Request Info
Supporting Resources Application Notes Brochures Protocols Quick Start Guides Software Downloads Technical Notes User Manuals Product Videos Related Products Reagents Assays Accessories Antibodies Cassettes Overview   Specifications   How It Works 3 or 4 Parameter Next Gen Flow Increase the pace of scientific discovery with ORFLO’s next generation Moxi Go? or Moxi Go II? Next Gen Flow Cytometers. With a one (Moxi GO) or two (Moxi GO II) fluorescent channels, swappable filter sets (MXG002 - Moxi GO 488nm), configurable laser the Moxi Go can be designed to meet your labs cell analysis needs.  Every assay also delivers simultaneous cell count & volume determination, using single-use flow cell.  This eliminates the hassle of traditional flow associated with cleaning, maintenance, clearing of clogs, cross contamination and occasionally replacement of bottles and tubes.   Furthermore the Moxi Go? or Moxi Go II? use very little sample volume, 75ul's allowing you to conserver precious, expensive sample, such as stem cells.  Cell concentrations as low as 10,000 cells per ml are possible, which most experiments would enable a little as 5ul's of sample diluted in 70ul's of PBS. The Moxi Go? or Moxi Go II? can be utilized as an assay development instrument and many powerful cell based assays can easily be optimized and run on the system.  These include: Cell surface immuno-labeling In-Cell Protein Quant CRISPR/Transfection Optimization Studies Up to 4 plex bead based ELISA's using our new on board MPX Relative Quantitation Ap In cell Wester Blots Reactive Oxidation Species Experiments Calein AM studies Phagocytosis Analysis Mito Potential Experiements The Moxi Go? or Moxi Go II? come standard with an ultra-intuitive, plug-and-play interface with free OS updates as long as you own the instrument. No prior flow cytometry experience is required you simply just plug and play.

配套耗材：

一、Moxi Z 微型自動細胞計數儀配套芯片(Cell Counting Cassettes)

芯片覆蓋直徑范圍（2-34微米）內的所有細胞樣品，無需根據細胞大小進行更換，

每個芯片可做2個測試。當樣品1完成后，只需取出，將芯片的另一端插入Moxi Z，加入樣品2。

在一次性盒式芯片中具有更高的性能和簡單性。

Moxi Z獨特的**保護薄膜細胞計數盒可在8秒鐘內提供高精度，可重復的細胞計數和細胞大小分析（S型盒帶15秒）。受全球**計數系統使用的金標準Coulter原理的啟發，Moxi盒每個測試通過一個細胞感測區域流動數千個細胞，以準確捕獲樣品中每個單個細胞的基于阻抗的體積測量。基于圖像的細胞計數方法，單個細胞的基于阻抗的細胞計數被證明是超過95％的準確度，而75％的準確度。

沒有系統污染和集成預過濾器防止堵塞。

Moxi盒式芯片設計有獨特的“細胞篩”，以*大限度地減少細胞結塊和堵塞。另外，Moxi盒含有100％的樣品在盒體內，消除了系統污染和**的可能性。

1、Moxi Z S型細胞計數芯片（Moxi Z Type S Cassettes）

The Type S cassette is ideal for accurately measuring most yeast and other particles as small as 3 μm and up to 20 μm in average diameter including some algae and protozoa. Since the technology is based on a volumetric measurement, non-spherical particles (14 - 4,200 fL) can also be measured accurately.

Higher Performance & Simplicity in One Disposable Cassette.
Moxi Z's unique, patent-protected thin-film cell count cassettes provide highly accurate, repeatable cell counts and cell size analysis in under 8 seconds (15 seconds for Type S cassette). Inspired by the gold-standard Coulter Principle used in high-end counting systems worldwide, the Moxi cassette flows thousands of cells per test through a cell sensing zone to accurately capture the impedance-based volumetric measurement of each individual cell in the sample. Impedance-based cell counting of individual cells is proven to be over 95% accurate versus a 75% accuracy with image-based cell counting methods. 

No system contamination and integrated pre-filter for clogging prevention. 
Moxi cassettes are designed with a unique "cell sieve" to minimize cell clumping and clogging. In addition, Moxi cassettes contain 100% of your sample within the cassette body, eliminating the possibility for system contamination and sterilization. Cassettes are simply and easily discarded when testing is finished.

Moxi Z Type S Cassettes

The Type S cassette is ideal for accurately measuring most yeast and other particles as small as 3 μm and up to 20 μm in average diameter including some algae and protozoa. Since the technology is based on a volumetric measurement, non-spherical particles (14 - 4,200 fL) can also be measured accurately.

Moxi Z Type S Pack (25 Cassettes)

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Moxi Z Type S Box (250 Cassettes)

Moxi Z Type M Cassettes

The Type M cassette is ideal for accurately measuring mammalian cells or other particles 4-25 microns in average diameter. Since the technology is based on a volumetric measurement, non-spherical particles (34-8,180 fL) can also be measured accurately.

Moxi Z Type M Pack (25 Cassettes)

  |  

Moxi Z Type M Box (250 Cassettes)

MOXI Z System Check Beads (5 mL) Product Code: MXA005 MOXI Z System Check Beads (5 mL) sh List
Related Products Accessories Cassettes Instruments Specifications id MXA005 Application Notes Can be used to check proper system function. Bead Diameter 10 micron Compatible Instruments Moxi Z Concentration 1.1 e+5 beads/mL Formulation Orflo Diluent Intended Use Statement For Research Use Only. Product is not for use in diagnostic procedures Material of Construction Polystyrene Overall Dimensions 22.1 mm^3 Sterility Non-sterile Weight 5 mg