Pith Number

pith:WRDJJCEB

pith:2026:WRDJJCEBCG7B7WDF5BTMWFGSAV

not attested not anchored not stored refs pending

Effects of Divalent Cations on Diffusion Dynamics of Biological Water Confined between Lipid Membranes

Jaeyoung Sung, Ji-Hyun Kim, Jinwon Park, Minhaeng Cho, Minho Lee

Calcium ions steadily increase the diffusion rate of water confined between lipid membranes, while magnesium ions produce a non-monotonic effect.

arxiv:2603.19719 v3 · 2026-03-20 · cond-mat.soft

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\usepackage{pith}
\pithnumber{WRDJJCEBCG7B7WDF5BTMWFGSAV}

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Record completeness

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2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

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The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

We find that the diffusion coefficient of biological water monotonically increases with Ca2+ ion concentration but exhibits a largely opposite, non-monotonic dependence on Mg2+ concentration. These contrasting behaviors originate from the different hydration radii of these divalent ions and their distinct effects on the interfacial structure and dynamics of biological water.

C2weakest assumption

The molecular dynamics force fields and the generalized transport equation faithfully reproduce the real interfacial structure, ion hydration, and diffusion fluctuations without significant artifacts from finite system size or parameter choices.

C3one line summary

Simulations find calcium ions monotonically raise the diffusion coefficient of nanoconfined biological water while magnesium ions yield non-monotonic dependence due to differing hydration radii and interfacial effects.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-26T01:03:28.477463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b44694888111be1fd865e866cb14d2057f2a9f7b6a41c58ce193427361a98e22

Aliases

arxiv: 2603.19719 · arxiv_version: 2603.19719v3 · doi: 10.48550/arxiv.2603.19719 · pith_short_12: WRDJJCEBCG7B · pith_short_16: WRDJJCEBCG7B7WDF · pith_short_8: WRDJJCEB

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/WRDJJCEBCG7B7WDF5BTMWFGSAV \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b44694888111be1fd865e866cb14d2057f2a9f7b6a41c58ce193427361a98e22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5d52c23102ca8cac1128575a119d30459846706ec4f331f151817b5550e427b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2026-03-20T07:48:59Z",
    "title_canon_sha256": "98d91cc0bfe7cb8d7086d6172394d6bc206a7f3275087c97d07b11f8e31a2f22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.19719",
    "kind": "arxiv",
    "version": 3
  }
}