Author resource

Writing & Formatting Guidelines

Prepare an accurate, accessible and submission-ready manuscript with this practical guide to files, article elements, visuals, data and references.

Start here Manuscript setup Visuals & equations Structure & data References Checklist
At a glance

The requirements authors need most

Use these figures as a quick pre-submission check, then review the detailed requirements below.

Submit editable source files. PDF is not accepted as the primary source file.
≤ 250 words
Self-contained abstract
3–5 points
Mandatory article highlights
531 × 1328 px
Minimum graphical-abstract size
150 MB
Maximum per video file
01 · Manuscript setup

Build a clean, complete submission

File format

  • Submit editable source files for manuscript text, tables, figures and graphical elements.
  • Save Word submissions as .doc or .docx; provide LaTeX submissions in .text format.
  • Do not submit a PDF as the primary source file.
  • Use a single-column layout in Word. Double-column formatting is permitted only for LaTeX.
  • Remove strikethroughs and underlining unless they have a specific scientific meaning.
  • Run spelling and grammar checks before submission.

Title page requirements

Article title
Make it concise, informative and representative of the content. Avoid abbreviations and formulae unless they are widely recognised and essential.
Author names
List every author’s full given name and family name in the correct order, accurately spelled and matching the submission system. Native-script names may be added in parentheses after the English transliteration.
Affiliations
Place institutional affiliations below the names. Use lowercase superscript letters to connect authors and affiliations; include the full postal address and country. Email addresses may be included where appropriate.
Corresponding author
Clearly identify the author managing correspondence during review, publication and after publication. Their contact details must remain current.
Present or permanent address
Where an author has moved, add the current address as a footnote using superscript Arabic numerals; retain the research location as the primary affiliation.

Abstract & keywords

Abstract

  • Provide a clear, precise and self-contained abstract of no more than 250 words.
  • Summarise the objective, key findings and main conclusions so it can be understood without the full manuscript.
  • Avoid citations; when unavoidable, use author name(s) and year(s) only.
  • Avoid uncommon abbreviations. If essential, define them at first mention.

Keywords

  • Write keywords in English.
  • Prefer single-word terms; avoid compound phrases using connectors such as “and” or “of.”
  • Use abbreviations only where they are well established in the discipline.

Mandatory highlights

Highlights are brief bullet points that spotlight the study’s novel contributions, main results or methodological innovations and improve discoverability in search engines and databases.

  • Submit highlights as a separate editable file with “highlights” in the file name.
  • Provide 3–5 bullet points.
  • Keep each point to no more than 85 characters, including spaces.
02 · Visuals & equations

Make every visual readable, editable and correctly cited

Authors are encouraged to provide a concise, professional graphical abstract that communicates the main content to an interdisciplinary audience.

  • Secure permission for all third-party content.
  • Comply with the journal’s generative-AI policy when AI-assisted tools are used in preparation.
  • Upload it as a separate file during submission.
  • Use at least 531 × 1328 pixels (height × width), or a proportional equivalent, readable at 5 × 13 cm at 96 dpi.
  • Preferred formats are TIFF, EPS, PDF or MS Office files.

Equations

  • Supply equations as editable text, never as embedded images.
  • Incorporate simple expressions into the text where possible.
  • Use a solidus for simple fractions, for example X/Y.
  • Italicise variables and express exponential terms using exp.
  • Number displayed equations sequentially in the order cited.

Tables

  • Supply tables as editable text and place them near first citation or at the manuscript end.
  • Cite and number every table consecutively.
  • Provide a clear caption and place explanatory notes below the table body.
  • Avoid vertical lines, cell shading and excessive formatting.
  • Use tables judiciously; do not duplicate information presented elsewhere.

Submit figures, diagrams and images as separate files in addition to the manuscript. Cite and number each figure sequentially, use logical names such as Figure_1, and supply captions for every visual element. Text graphics may be embedded in appropriate manuscript locations.

Accepted artwork formats

  • Vector graphics: EPS or PDF, with fonts embedded or text converted to outlines.
  • Colour or grayscale photographs: TIFF, JPG or PNG at a minimum of 300 dpi.
  • Line drawings: TIFF, JPG or PNG at 1000 dpi.
  • Combined line/halftone images: TIFF, JPG or PNG at 500 dpi.
  • Do not use low-resolution images or formats optimised for screen use.
Generative AI in visual content
The creation or alteration of images using generative AI or AI-assisted tools is not permitted. The exception is when generation is integral to the research method, such as biomedical imaging; in that case, disclose the tool name, version and parameters. AI-generated figures or graphical abstracts are not allowed. Cover-art exceptions require prior editorial approval and rights clearance.
03 · Structure, files & transparency

Keep the research record complete

Supporting files, video & data

Supplementary material

  • Submit relevant, accurate supplementary material and cite it in the manuscript.
  • Submit files with the main article; they will be published as received.
  • Give every file a concise descriptive caption.
  • Replace earlier versions when revising and disable tracked changes.

Video and animation

  • Refer clearly to video content in the manuscript.
  • Name files appropriately and keep each file within 150 MB, with a 1 GB total limit.
  • Provide a representative still image for each video.
  • Include descriptive text for accessibility and print usability.

Research data and linking

  • Deposit datasets, software, code and protocols in an appropriate repository, cite them in the article, and supply a data-availability statement at submission.
  • Link data through repository links during submission or recognised database identifiers in the manuscript.
  • Companion data, methods or protocol articles may be co-submitted to Data in Brief or MethodsX using the required templates.

Article structure & back matter

  • Organise manuscripts in clearly numbered sections and subsections, such as 1, 1.1 and 1.1.1. Use the numbering consistently for cross-references; keep headings on separate lines. Do not number the abstract.
  • Use a theory section to extend the earlier conceptual background; use calculation sections for applied development. Supply a separate glossary where relevant.
  • Use footnotes sparingly and number them consecutively; they may be generated automatically or listed at the end.
  • Place acknowledgements immediately before the references and use them only for non-authorship support.
  • Use CRediT (Contributor Roles Taxonomy) to specify individual author contributions. Authors may hold multiple roles and not every role applies to every paper.
  • Clearly identify all funding sources and each funder’s role in the work. If there was no role, state this explicitly. Use a standardised funding format.
  • Identify appendices sequentially (Appendix A, Appendix B, etc.). Independently number appendix equations, tables and figures, for example Eq. (A.1), Table A.1 and Fig. A.1.
04 · References

Use a complete and consistent citation record

Reference list & formatting

  • Every source cited in the manuscript must appear in the reference list, and every listed reference must be cited in the text.
  • Include references cited in the abstract in full. Avoid unpublished data and personal communications in the list unless necessary; label them “unpublished results” or “personal communication.”
  • Use “in press” only for work formally accepted for publication.
  • Verify authors, titles, years and pagination. Accurate metadata supports linking in services such as Scopus, Crossref and PubMed. DOI use is strongly encouraged.
  • At submission, any consistent style is acceptable if it contains author names, year, article/chapter title, journal/book title, and volume, issue, article number or page range where applicable.
  • The house reference style is applied after acceptance; authors may be asked to correct missing information at proof stage.

Citations, web sources & reference tools

  • For one author, cite surname and year; for two authors, cite both surnames and year; for three or more, cite the first surname followed by et al. and year.
  • Use narrative or parenthetical citations. Group multiple citations alphabetically or chronologically. Add a, b, c to same-author, same-year works.
  • Abbreviate journal titles according to the List of Title Word Abbreviations (LTWA).
  • For web references, include the full URL and date last accessed. For data, include creator, dataset title, repository, version, year and persistent identifier, preceded by [dataset]. Clearly identify preprints and cite the peer-reviewed article if available.
  • You may use Mendeley Reference Manager or other CSL-compatible tools. Select the journal template where available and remove all field codes before submission.
Final check

Ready to submit?

Confirm the essential items before completing your manuscript submission.

A corresponding author is designated with complete, current contact details.
All required files are included: figures, tables, captions, keywords and supplementary materials.
Spelling and grammar checks are complete, and all reference-list entries match in-text citations.
Permissions for copyrighted material have been obtained.
For open-access submissions, responsibility for any applicable Article Processing Charge is acknowledged.