Journal Guides6 min readUpdated Apr 20, 2026

Small Journal Cover Letter: What Editors Actually Need to See

Small publishes micro and nanoscience where the small length scale drives the science. Your cover letter must prove the work is nano-driven, not just that it happens at the nanoscale.

By Senior Researcher, Chemistry
Author contextSenior Researcher, Chemistry. Experience with JACS, Angewandte Chemie, ACS Nano.View profile

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Journal context

Small at a glance

Key metrics to place the journal before deciding whether it fits your manuscript and career goals.

Full journal profile
Impact factor12.1Clarivate JCR
Acceptance rate~15-25%Overall selectivity
Time to decision~100-140 days medianFirst decision

What makes this journal worth targeting

  • IF 12.1 puts Small in a visible tier — citations from papers here carry real weight.
  • Scope specificity matters more than impact factor for most manuscript decisions.
  • Acceptance rate of ~~15-25% means fit determines most outcomes.

When to look elsewhere

  • When your paper sits at the edge of the journal's stated scope — borderline fit rarely improves after submission.
  • If timeline matters: Small takes ~~100-140 days median. A faster-turnaround journal may suit a grant or job deadline better.
  • If open access is required by your funder, verify the journal's OA agreements before submitting.
Working map

How to use this page well

These pages work best when they behave like tools, not essays. Use the quick structure first, then apply it to the exact journal and manuscript situation.

Question
What to do
Use this page for
Getting the structure, tone, and decision logic right before you send anything out.
Most important move
Make the reviewer-facing or editor-facing ask obvious early rather than burying it in prose.
Common mistake
Turning a practical page into a long explanation instead of a working template or checklist.
Next step
Use the page as a tool, then adjust it to the exact manuscript and journal situation.

Quick answer: a strong Small cover letter proves the work is nano-driven, not just nano-sized. The editors want to see that the micro or nanoscale is what makes the science work, not just where the material happens to sit on a size chart.

What Small Editors Screen For

Criterion
What They Want
Common Mistake
Scope fit
Micro or nanoscale science where the small length scale drives the finding
Submitting work that is merely at the nanoscale without the scale being scientifically meaningful
Novelty claim
A clear advance over the current state of the art at this scale
Incremental work that does not push beyond existing micro/nano results
Characterization
Adequate characterization to support the claims being made
Overclaiming results without sufficient nanoscale characterization data
Journal distinction
Clear reason for Small vs. a general materials journal
Submitting a materials paper that would work equally well without the nano angle
Scale-driven insight
The small length scale is essential to the scientific result
Reporting results that happen at the nanoscale but are not caused by it

What the official sources do and do not tell you

The Small author guidelines explain scope (micro and nanoscience) and the Wiley ScholarOne submission process. They do not spell out that roughly 40 to 50% of submissions are desk-rejected, or that the most common failure is submitting work that is merely at the nanoscale without the nanoscale being scientifically meaningful.

What the editorial model implies:

  • the journal covers nanomaterials, nanodevices, microfabrication, nanofluidics, and micro/nanosystems
  • editors screen for whether the small length scale drives the finding, not just describes the material
  • both Communications and full papers are accepted
  • the journal sits between Nano Letters (short, focused) and ACS Nano (longer, deep characterization) in scope

What the Wiley workflow makes important

The official guidance is straightforward about scope but leaves the editorial judgment implicit. For Small, the cover letter has to tell the editor why the micro or nanoscale is central to the result and why the paper belongs in a broad small-scale science journal rather than a narrower chemistry, materials, or device venue.

That is why the best letter here is not just a scope statement. It is a short explanation of what the small length scale enables scientifically.

In our pre-submission review work

Editors actually test whether the nano or microscale is causal rather than decorative. We see this pattern when a manuscript has nanomaterials, nanostructures, or microdevices in it, but the letter never explains what scientific or functional behavior becomes possible because of that scale.

What actually happens at triage is a scale-dependence check. In our review work, the stronger Small letters name the scale-specific effect, then connect it to function, mechanism, or application. The weaker ones sound like general materials papers with nano vocabulary.

This is where good papers get reframed downward. If the small-scale story disappears once the buzzwords are removed, the editor will usually treat the manuscript as a better fit for another journal.

What the editor is really screening for

At triage, the editor is asking:

  • does the micro or nanoscale drive the scientific finding?
  • is there a clear advance over the current state of the art at this scale?
  • is the characterization adequate for the claims being made?
  • does this paper fit Small specifically, or would it work equally well in a general materials journal?

What a strong Small cover letter should actually do

A strong letter usually does four things:

  • states the main finding and why the small length scale is essential to it
  • identifies the specific area of micro/nanoscience (nanomaterials, nanodevices, microfluidics, etc.)
  • highlights the characterization methods that support the nano-scale claims
  • specifies the article type (Communication or full paper)

Submit if / Think twice if

Submit if:

  • the micro or nanoscale is essential to the phenomenon or function
  • the manuscript would lose its main story if the scale dependence were removed
  • you can explain the broad micro/nano relevance without stretching the claim

Think twice if:

  • the work is mostly a materials paper with incidental nanoscale dimensions
  • the strongest claim depends on characterization alone rather than function or mechanism
  • the letter sounds more natural when aimed at a narrower materials or device journal

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A practical template you can adapt

Dear Editor,

We submit "[TITLE]" for consideration as a [Communication / Full
Paper] in Small.

[1-2 sentences: the main finding. Explain why the micro or
nanoscale is essential to this result.]

[1-2 sentences: the specific area of nanoscience and the key
characterization or fabrication methods used.]

[1 sentence: what advances beyond the current state of the art.]

We confirm this manuscript is original and not under consideration
elsewhere. All authors have approved the submission.

Suggested reviewers:
1. [Name], [Institution], [email]
2. [Name], [Institution], [email]
3. [Name], [Institution], [email]

Sincerely,
[Name, Affiliation, Email, ORCID]

Mistakes that make these letters weak

The common failures are:

  • submitting work that happens to be at the nanoscale but is not scientifically driven by the nanoscale
  • writing a generic materials letter with no mention of the length-scale dependence
  • inadequate characterization for the claims (e.g., TEM images without statistical size analysis)
  • not specifying whether the submission is a Communication or full paper
  • claiming broad impact without specific evidence

What should drive the submission decision instead

Before polishing the letter further, confirm the journal fit is honest.

The better next reads are:

If the work is a short focused finding, Nano Letters may be the higher-impact option. If it requires deep characterization with extensive supplementary data, ACS Nano is the natural alternative. If the work is primarily about material properties without a nanoscale story, Advanced Functional Materials or Journal of Materials Chemistry A may be better fits.

Practical verdict

The strongest Small cover letters put the length-scale dependence front and center. They show why the science works because of the nanoscale, not merely at the nanoscale.

A Small cover letter framing check is the fastest way to pressure-test whether your framing meets the editorial bar before submission.

Cover letter template for Small Journal

Use this structure, adapting the bracketed sections to your specific paper:

Dear Editors of Small Journal,

We submit "[Your Title]" for consideration as a [Article Type] in Small Journal.

Why this journal: [One sentence explaining why this paper fits Small Journal's scope specifically - not generic prestige language.]

What's new: [Two sentences describing the key finding and why it advances the field. Lead with what changed, not what you did.]

Significance: [One sentence on the broader implication for the journal's readership.]

Confirmations: We confirm that this manuscript is original, not under consideration elsewhere, and all authors have approved the submission. [Add any required declarations: conflicts of interest, data availability, ethics approval.]

Sincerely,

[Corresponding Author]

Common cover letter mistakes for Small Journal

  • Generic prestige language. "We are submitting to Small Journal because of its high impact factor" tells the editor nothing about fit. Name the specific reason.
  • Repeating the abstract. The cover letter should explain why here, not what we did. The editor will read the abstract separately.
  • Missing required declarations. Check Small Journal's author guidelines for specific disclosure requirements. Missing these can trigger an immediate desk return.
  • Overselling the findings. Editors are experts. Claims like "major" or "paradigm-shifting" without supporting evidence in the paper undermine credibility.

Should you submit to Small?

Submit if:

  • The micro/nanoscale is what drives the science, not just the material's physical dimension
  • You have device or application data, not just material characterization
  • The work bridges fundamental nanoscience with practical function (sensing, catalysis, drug delivery, electronics)
  • You can distinguish your contribution from recent Small publications on similar nanostructures

Think twice if:

  • The paper is primarily characterization of a new nanomaterial without functional significance
  • A more focused journal (Nano Letters for single findings, ACS Nano for deep characterization) would be a better scope fit
  • The nanoscale aspect is incidental, the science would work the same at any length scale

Before you submit

A Small cover letter and submission readiness check is most useful when the science may be strong enough, but the scale-dependence argument and journal-fit framing still need a harder editorial read before submission.

Frequently asked questions

Approximately 15 to 20 percent. The desk-rejection rate is around 40 to 50 percent, meaning a large share of submissions never reach peer review.

Yes. Small requires a cover letter with every submission through the ScholarOne system. The letter is read by the handling editor during initial triage.

Approximately 13. CiteScore is around 20. The journal has maintained a stable IF in the 10 to 15 range.

Nano Letters (ACS) favors short communications with a single focused finding. ACS Nano publishes longer articles with deep characterization. Small (Wiley) covers both micro-scale and nano-scale science, including microfluidics and MEMS, and tends to favor applied and device-oriented work.

References

Sources

  1. 1. Small - Author Guidelines, Wiley.
  2. 2. Small - Journal Homepage, Wiley.
  3. 3. Clarivate Journal Citation Reports (JCR 2024).

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