Corporate Banner
Satellite Banner
Biomolecular Screening
Scientific Community
 
Become a Member | Sign in
Home>Resources>Application Notes>This Application Note
  Application Notes
Scientific News
Stem Cells in Drug Discovery
Potential Source of Unlimited Human Test Cells, but Roadblocks Remain.
Automated Low Volume Dispensing Trends
Gain a better understanding of the current and future market requirements for fully automated LVD systems.
Protein-Based “Cancer Signature” Uncovered
Researchers investigated the expression of ribosomal proteins in human tissues and discovered a cancer type specific signature which could be used to predict the progression of the disease.
Ribosome Recycling as a Drug Target
Researchers explain mechanism that recycles bacterial ribosomes stalled on messenger RNAs that lack termination codons.
Predicting Leukaemia Development in Cancer Patients
Biomarker may predict which formerly treated cancer patients will develop highly fatal form of leukemia.
Survey of New York City Soil Uncovers Medicine-Making Microbes
Microbes have long been an invaluable source of new drugs. And to find more, we may have to look no further than the ground beneath our feet.
'Lab on the Skin' for Sweat Analysis
Northwestern University researchers develop a low-cost wearable electronic device that collects and analyzes sweat for health monitoring.
Toxoplasma’s Balancing Act Explained
Parasite’s method of rewiring our immune response leads to novel tool for drug tests.
Cancer Signaling Pathway Illuminating Way To Therapy
Researchers refine a pro-growth signalling pathway, common to cancers, that can kill cancer cells while leaving healthy cells unharmed.
Breast Cancer Cells Starve for Cystine
Depriving triple negative breast cancer, a treatment-resistant form of breast cancer, of cystine results in cancer cell death.
Scroll Up
Scroll Down

Keeping DMSO Concentration Below 0.5% to Minimize its Effect in HTS Assays
Bookmark and Share

Deerac Fluidics,Labcyte

Abstract
Dimethyl sulfoxide (DMSO) is a commonly used solvent for compounds. DMSO accelerates protein unfolding and weakens the binding between small molecules and proteins. Consequently researchers keep DMSO concentrations as low as possible, especially for sensitive assays. To keep the DMSO concentration at less than one percent of the final assay volume has been difficult due to the lack of reliable nanoliter-range liquidhandlers. Intermediate aqueous dilution steps can cause the compound to “crash out” of solution. The requirement to keep compounds dissolved while keeping DMSO concentration low in the final assay is especially critical when preparing compound activity curves.

The Labcyte Echo™ 550 liquid handler utilizes acoustic drop ejection (ADE) to transfer 2.5-250 nL of compounds in DMSO directly from storage plates to assay plates. Deerac Fluidics Latitude™ bulk dispenser, which uses “spot-on” technology, can precisely deliver as low as 50 nL. The Latitude can be used to rapidly add pure DMSO to specific wells so that all assay wells have the same DMSO concentration. Here we demonstrate the use of these two technologies in combination for keeping final DMSO concentration under 0.5% in HTS assays.

Further Information

Related Content

Labcyte and Deerac Fluidics Combine Forces to Enhance Low Volume Liquid Handling
Labcyte and Allegro Technologies Limited have reached agreement on the terms for combination of the two companies.
Wednesday, January 30, 2008
SELECTBIO

SELECTBIO Market Reports
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
4,000+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
5,300+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!