# <b>BioAnalyzer RNA analysis</b>

### <a href='https://www.agilent.com/en/product/automated-electrophoresis/bioanalyzer-systems/bioanalyzer-rna-kits-reagents/bioanalyzer-rna-analysis-228256'>BioAnalyzer RNA analysis</a> ( <a href='https://www.agilent.com/cs/library/usermanuals/public/RNA-6000-Nano_QSG.pdf'>Quick start</a>, <a href='https://www.agilent.com/cs/library/usermanuals/public/G2938-90034_RNA6000Nano_KitGuide.pdf'>Manual</a> )

# Preparation

| Item                                                                     | Amount  | Location                              |
| :----------                                                              | :-----: | :---:                                 |
| <b>Nano Chips <sup>&alpha;</sup></b>                                     |         | &#8549;                               |
| RNA Nano Chips                                                           | 25      | RNA bench, Reuse                      |
| Electrode Cleaners                                                       | 2       | RNA bench, Reuse                      |
| <b>Reagents <sup>&beta;</sup></b>                                        |         | &minus;80&deg;C ( upper door-2-1-4 )  |
| <div style='color: forestgreen'>(green) RNA 6000 Nano Marker</div>       | 2 vials |                                       |
| <div style='color: royalblue'>(blue) RNA 6000 Nano Dye Concentrate</div> | 1 vial  |                                       |
| <div style='color: red'>(red) RNA 6000 Nano Gel Matrix</div>             | 2 vials |                                       |
| <b>Supplies <sup>&gamma;</sup></b>                                       |         | &minus;80&deg;C ( upper door-2-1-4 )  |
| <div style='color: orange'>(yellow) RNA 6000 Nano Ladder</div>           | 1 vial  |                                       |
| <b>Chip Priming Station <sup>&delta;</sup></b>                           | 1 unit  | Lab 236 middle bench                  |
| <b>Syringe <sup>&epsilon;</sup></b>                                      | 1 unit  | Lab 236 middle bench                  |
||||||

<sup>&alpha;</sup> **Nano Chips**: <a href='https://www.agilent.com/store/productDetail.jsp?catalogId=5067-1511'>Agilent RNA 6000 Nano Kit (5067-1511)</a>

<sup>&beta;</sup> **Reagents**: <a href='https://www.agilent.com/store/productDetail.jsp?catalogId=5067-1512'>Agilent RNA 6000 Nano Reagents (5067-1512)</a>
- <g style='color: forestgreen'>The marker is transparent color, we already aliquoted it as 75 &mu;L per vial ( marked as "M" )</g>.
- <g style='color: royalblue'>The dye concentrate is blue color, we already aliquoted it as 2 &mu;L per vial ( marked as "D" )</g>
- <g style='color: red'>The gel matrix is transparent color, put in the same pack with the dye concentrate. We already aliquoted it as 65 &mu;L per vial ( marked as "G" )</g>

<sup>&gamma;</sup> **Supplies**: <a href='https://www.agilent.com/store/productDetail.jsp?catalogId=5067-1529'>Agilent RNA 6000 Nano Ladder (5067-1529)</a>
- <div style='color: orange'>The ladder is transparent color, we already aliquoted it as 2 &mu;L per vial</div>

<sup>&delta;</sup> **Chip Priming Station**: <a href='https://www.agilent.com/store/productDetail.jsp?catalogId=5065-4401'>Bioanalyzer Parts & Accessories (5065-4401)</a>

<sup>&epsilon;</sup> **Syringe Kit**: <a href='https://www.agilent.com/store/productDetail.jsp?catalogId=G2938-68706'>Syringe Kit (G2938-68706)</a>

<div style='page-break-after: always;'></div>

# Procedure

All instruments should be sterilized prior to the experiment

## **Step 1: Gel-Dye Mix**

One set of Gel-Dye Mix is for one chip ( 12 wells ).

1. Allow the <b style='color: royalblue'>RNA dye concentrate</b> ( &#128309; ) equilibrate to room temperature ( <b style='color: darkorange'>25&deg;C</b> ) for <b style='color: darkorange'>30 mins</b>.

2. Vortex the <b style='color: royalblue'>RNA dye concentrate</b> ( &#128309; ) for <b style='color: darkorange'>10 secs</b>, spin down and add <b style='color: royalblue'>1 &mu;L dye</b> into a <b style='color: red'>65 &mu;L gel matrix aliquot</b>.

3. Vortex solution well. Centrifuge ( <b style='color: darkorange'>13,000 g</b>, <b style='color: darkorange'>10 mins</b> ) at 25&deg;C. Use the prepared <b style='color: #40B5AD'>Gel-Dye Mix</b> within one day.

## **Step 2: Decontaminate the instrument electrode**

1. Pipette <b style='color: darkorange'>350 &mu;L RNaseZap&trade; solution</b> into an Electrode Cleaner ( we reuse this, marked as "RNaseZap" ). Close the machine lid to submerge the electrode probe into the solution for <b style='color: darkorange'>3 mins</b>.

2. Pipette <b style='color: darkorange'>350 &mu;L RNase-free water</b> into an Electrode Cleaner ( we reuse this, marked as "RNase-free water" ). Close the machine lid to submerge the electrode probe into the water for <b style='color: darkorange'>3 mins</b>.

3. Keep the lid opened for <b style='color: darkorange'>1 min</b> to <b style='color: darkorange'>air-dry</b> the electrode.

<div style='border-left: 5px solid purple; padding: 10px 0 10px 20px; font-size: 1.1em;'>During this period, switch on the PC and execute the <code style='color: purple'>2100 Expert</code> software.</div>

## **Step 3: Load <b style='color: #40B5AD'>Gel-Dye Mix</b>**

1. Put a new RNA Nano Chip on the Chip Priming Station.

2. Pipette <b style='color: #40B5AD'>9 &mu;L</b> of <b style='color: #40B5AD'>Gel-Dye Mix</b> into the well marked <span style="display: inline-block; width: 1.2em; height: 1.2em; line-height: 1.2em; text-align: center; background-color: black; color: white; border-radius: 50%; font-weight: bold;">G</span> ( only one well ).

3. Make sure the <b style='color: darkorange'>plunger</b> is <b style='color: darkorange'>positioned at 1 mL</b> and then close the Chip Priming Station. Make sure you hear a click sound to confirm that the latch is securely snapped.

4. Press the plunger until it is held by the clip.

5. Wait for exactly <b style='color: darkorange'>30 secs</b> then release clip.

6. Wait for <b style='color: darkorange'>5 secs</b>. Slowly <b style='color: darkorange'>pull back plunger</b> to <b style='color: darkorange'>1 mL position</b>. Open the Chip Priming Station.

7. Pipette <b style='color: #40B5AD'>9 &mu;L</b> of <b style='color: #40B5AD'>Gel-Dye Mix</b> into the wells marked <span style="display: inline-block; width: 1.2em; height: 1.2em; line-height: 1.2em; text-align: center; background-color: white; color: black; border: 1px solid black; border-radius: 50%; font-weight: bold;">G</span> ( two wells ).

8. Discard the remaining Gel-Dye Mix.

## **Step 4: Load <b style='color: forestgreen'>Marker</b>**

1. Pipette <b style='color: forestgreen'>5 &mu;L</b> of <b style='color: forestgreen'>RNA marker</b> in all 12 sample wells. 

2. Pipette <b style='color: forestgreen'>5 &mu;L</b> of <b style='color: forestgreen'>RNA marker</b> in the ladder well marked with a ladder symbol 🪜 ( only one well ).

- We prepared 75 &mu;L marker per vial. So now we already load in 65 &mu;L into the chip. The remaining 10 &mu;L is, for the empty sample wells, in case you don't have 12 RNA samples. The machine requires all sample wells must have same volume.

## **Step 5: Load <b style='color: orange'>Ladder</b>**

1. Pipette <b style='color: orange'>1 &mu;L</b> of <b style='color: orange'>RNA ladder</b> in the ladder well marked with a ladder symbol 🪜 ( only one well ).

## **Step 6: Load samples RNA**

1. Pipette <b style='color: darkorange'>1 &mu;L</b> of <b style='color: darkorange'>sample</b> in each of the 12 sample wells.

> - substitute with <b style='color: forestgreen'>1 &mu;L Marker</b> for unused sample wells.

2. Put the chip <b style='color: darkorange'>horizontally</b> in the <b style='color: darkorange'>IKA vortexer</b> and vortex for <b style='color: darkorange'>1 min</b> at <b style='color: darkorange'>2400 rpm</b>. Hover your hand over the chip because it might fly out due to an overly strong vortex.

3. Run the chip in the Agilent 2100 Bioanalyzer instrument within 5 mins.

## **Step 7: On-machine**

1. Put the chip into the slot ( the shape of the upper right corner of the chip should be matched ). Close the machine lid gently to submerge the electrode into the chip.

2. Execute the `2100 Expert` software.

3. Navigate to `Assays` &rarr; `RNA` &rarr; `Plant RNA Nano.xsy`.

4. Key in your sample name / ID to the list at lower left side.

5. Make sure the `Start Run Checklist` at the lower right side are all checked.

6. Press `Start` and wait for 5 ~ 10 mins for the machine checking.

7. Wait for &approx; 40 mins for the chip to be read.

8. After finishing, discard the chip and clean up the electrode as the procedure in <b>Step 2: Decontaminate the instrument electrode</b>. You can skip the RNaseZap step.

9. Check and save all the data with a single PDF report, use `File` &rarr; `Print`

> - Quick look at RIN value, `Data` &rarr; `Chip summary`
> - Quick look at RNA concentration, `Data` &rarr; `Electropherogram`

<hr><h2 style="text-align: center">Done !!!</h2><hr>
