Open Lab Video Library

See every step. Skip every pitfall.

Lab videos and hard-won lessons in one place, so you walk in prepared.

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Avoid the Pitfalls

Real mistakes other researchers hit, and how to get them right.

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Pitfall Transfection

Massive cell death after transfection — reagent toxicity is too high

Why it fails Transfection reagent dose is too high or inherently toxic

Pitfall qPCR (RT-qPCR)

No amplification — Ct value missing or > 40

Why it fails Template (RNA / cDNA) degraded or concentration too low

Pitfall Cell Culture (Contamination)

Mycoplasma Contamination - Silent Growth Inhibitor

Why it fails Introduction through poor aseptic technique (mycoplasma found on human skin)

Pitfall Plasmid Construction

Confirmed colony later shows recombination or deletion

Why it fails Insert contains repeat sequences, LTRs, or other unstable elements that recombine

Pitfall Western Blot

No bands at all (blank membrane)

Why it fails Transfer failed or membrane transfer was incomplete

Pitfall Colony Formation Assay

No colonies at all — total failure

Why it fails Seeding density was too low (or no live cells survived)

Featured

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Popular

Trending protocols, by views on Labtorial and their source platforms.

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Mouse dissection
02:30 Bio-protocol Video
Cell Biology

Mouse dissection

Bio-protocol Video ·

膜片钳电生理技术
09:43 Bilibili (China-Accessible Mirrors)
Neuroscience

膜片钳电生理技术

Bilibili (China-Accessible Mirrors) ·

Protocol: Plasmid DNA Purification using the QIAprep Spin Miniprep Kit and a Vacuum Manifold
03:00 QIAGEN
Cell Biology

Protocol: Plasmid DNA Purification using the QIAprep Spin Miniprep Kit and a Vacuum Manifold

QIAGEN ·

Western Blot Protein Immunoblotting Operational Demonstration
10:42 Bilibili (China-Accessible Mirrors)
Biochemistry

Western Blot Protein Immunoblotting Operational Demonstration

Bilibili (China-Accessible Mirrors) ·

Import of ÄKTA chromatograms for purity analysis
02:25 Cytiva
Biochemistry

Import of ÄKTA chromatograms for purity analysis

Cytiva ·

Restriction Digest Analysis
08:02 Addgene
Cell Biology

Restriction Digest Analysis

Addgene ·

Recently Added

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IHC Immunohistochemistry Day-1 Practical Operation
07:36 Bilibili (China-Accessible Mirrors)
Immunology

IHC Immunohistochemistry Day-1 Practical Operation

Bilibili (China-Accessible Mirrors) ·

Gram Staining and Microscopic Examination
16:55 Bilibili (China-Accessible Mirrors)
Microbiology

Gram Staining and Microscopic Examination

Bilibili (China-Accessible Mirrors) ·

Thermo Fisher Microplate Reader Software Operation
45:17 Bilibili (China-Accessible Mirrors)
Biochemistry

Thermo Fisher Microplate Reader Software Operation

Bilibili (China-Accessible Mirrors) ·

Assessment of Methane and Nitrous Oxide Fluxes from Paddy Field by Means of Static Closed Chambers Maintaining Plants Within Headspace
09:03 JoVE (Open Access)
Botany

Assessment of Methane and Nitrous Oxide Fluxes from Paddy Field by Means of Static Closed Chambers Maintaining Plants Within Headspace

JoVE (Open Access) ·

Intranuclear Microinjection of DNA into Dissociated Adult Mammalian Neurons
13:39 JoVE (Open Access)
Cell Biology

Intranuclear Microinjection of DNA into Dissociated Adult Mammalian Neurons

JoVE (Open Access) ·

A Novel Method for Assessing Proximal and Distal Forelimb Function in the Rat: the Irvine, Beatties and Bresnahan (IBB) Forelimb Scale
12:46 JoVE (Open Access)
Analytical Chem

A Novel Method for Assessing Proximal and Distal Forelimb Function in the Rat: the Irvine, Beatties and Bresnahan (IBB) Forelimb Scale

JoVE (Open Access) ·