Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
both assay
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "both assay" is not correct in English and does not convey a clear meaning.
It may be intended to refer to two assays in a scientific context, but it requires additional context or modification to be usable. Example: "We need to conduct both assays to compare the results effectively."
⚠ May contain grammatical issues
Alternative expressions(5)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
58 human-written examples
Good clinical laboratory practice (GCLP) guidelines recommend both assay validation and proficiency testing for assays being used in clinical trials, and such testing is facilitated by the availability of large numbers of well-characterized test samples.
Both assay methods showed high specificity and acceptable reliability for real serum samples analysis.
Substrate specificity and analytical measurement range (AMR) for both assay types are also similar.
A polyclonal antibody (BC67) used in both assay formats was raised to saxitoxin jeffamine BSA in New Zealand white rabbits.
Science
In our study, only bioassays containing both assay information of half-maximum inhibitory concentration (IC50), half-maximum effective concentration (EC50) or Ki values, and the explicit target sequence (GI) were systematically extracted from PubChem Bioassay database.
Science
These experiments revealed that under both assay conditions (i.e. in light and in the dark) the half-maximal rate of phosphorylation is observed at about 0.5 mM ATP, while the maximal rate of phosphorylation (Vmax) is lowered with more than 50% in the presence of saturating amounts of blue light (Fig. 2b).
Science
Since both assay formats were similar and we observed an increase in predictive power when all Scripps percent inhibition data were included, in all likelihood the NCGC and Scripps assays should be predictive for each other if there is sufficient overlap in chemical space.
Science
Both assay types have similar characteristics for the determination of estrogen in sewage and urine samples e.g. 6 25 h assay period with detection and determination limits and EC50 values for 17β-estradiol of 2.8 ng L− 1, 5.9 ng L− 1, 33.2 ng L− 1 (nAES-P) and 3.1 ng L− 1, 6.7 ng L− 1 and 39.4 ng L− 1 (nAES-T).
Possible nonspecific effects were controlled by stimulating cells with mock-HSA in both assay formats.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
2 human-written examples
Both assays revealed significant and comparable loss of cell functionality that was confirmed by DNA assay.
Science
A control without LEO was performed in both assays.
Science
Expert writing Tips
Best practice
Avoid using the phrase "both assay" as it is grammatically incorrect and unclear. Instead, specify what you are referring to with clearer terms like "both methods" or "the two assays".
Common error
A common mistake is using "both assay" without specifying what "assay" refers to. Always ensure the context is clear by using more descriptive terms or specifying the assays in question.
Source & Trust
60%
Authority and reliability
1.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "both assay" functions incorrectly as it attempts to specify two instances of an assay. However, the grammatical structure is flawed, leading to a lack of clarity. According to Ludwig AI, the phrase is not correct.
Frequent in
Science
0%
News & Media
0%
Formal & Business
0%
Less common in
Science
0%
News & Media
0%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, the phrase "both assay" is grammatically incorrect and lacks clarity. As Ludwig AI points out, it's not a correct or standard English phrase. To ensure clear communication, especially in scientific or analytical contexts, it is crucial to use more precise and grammatically sound alternatives such as "both methods", "the two assays", or "both tests". Using these alternatives will help avoid confusion and ensure your writing is professional and easily understood.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
both methods
Replaces "assay" with the more general term "methods", implying a comparison between two procedures.
both tests
Substitutes "assay" with "tests", which is a common and easily understood term for analytical procedures.
the two assays
Adds "the" for specificity and clarifies that there are two specific assays being referred to.
the two methods
Combines specificity with a more general term, replacing "assay" with "methods" and adding "the".
both analytical procedures
Replaces "assay" with a more formal and descriptive term, indicating the analytical nature of the procedures.
the two analyses
Uses "analyses" as a substitute for "assay", focusing on the analytical aspect of the procedures.
both experimental setups
Replaces "assay" with "experimental setups", emphasizing the experimental aspect of the procedures.
the two experimental designs
Combines specificity with the experimental context, replacing "assay" with "experimental designs".
both procedures
Focuses on the procedural aspect, replacing "assay" with the more general term "procedures".
the two techniques
Highlights the technical aspect, replacing "assay" with "techniques".
FAQs
How can I correctly refer to two assays in a sentence?
Instead of "both assay", use phrases like "both methods", "the two assays", or "both tests" for better clarity.
What's wrong with using the phrase "both assay"?
The phrase "both assay" is grammatically incorrect and lacks a clear meaning in standard English. It's better to specify what you are referring to such as "both analytical procedures".
Is there a more formal way to say "both assay"?
Yes, you can use more formal phrases such as "both analytical procedures" or "the two experimental designs" depending on the context.
What can I say instead of "both assay" in a scientific context?
In a scientific context, clearer alternatives to "both assay" include "the two methods", "both experimental setups", or "the two techniques".
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
60%
Authority and reliability
1.8/5
Expert rating
Real-world application tested