{"id":1257,"date":"2025-11-12T12:32:44","date_gmt":"2025-11-12T12:32:44","guid":{"rendered":"https:\/\/stophemo.gr\/?p=1257"},"modified":"2026-03-26T18:45:50","modified_gmt":"2026-03-26T18:45:50","slug":"why-look-to-the-oceans-for-hemostasis","status":"publish","type":"post","link":"https:\/\/stophemo.gr\/en\/why-look-to-the-oceans-for-hemostasis\/","title":{"rendered":"WHY LOOK TO THE OCEANS\u2026. FOR HEMOSTASIS?"},"content":{"rendered":"

When it comes to stopping bleeding, your body is like a tiny, highly trained emergency
\nteam\u2014sending platelets, clotting factors, and a flood of chemical signals to patch up the
\ndamage before you even notice it. But sometimes even the best emergency team needs a
\nlittle backup to get the job done!<\/p>\n

\nWHAT IS HEMOSTASIS?<\/strong><\/h3>\n

Hemostasis is the body\u2019s biological process for stopping bleeding after an injury to a blood
\nvessel. It is the first step in wound healing and consists of three main mechanisms:
\n\ud83d\udc49\ud83c\udffbVasoconstriction \u2014 blood vessels constrict to reduce blood flow.
\n\ud83d\udc49\ud83c\udffbPlatelet plug formation \u2014 platelets stick together to form an initial seal.
\n\ud83d\udc49\ud83c\udffbCoagulation \u2014 a cascade of chemical reactions turns blood into a gel (fibrin clot) to
\nfirmly stop bleeding.
\nHemostasis is a highly efficient natural process. However, in many real-world situations (such
\nas first aid emergencies or specific medical conditions), additional help is required to
\neffectively stop the bleeding. Such help sometimes comes \u2026. from the oceans!<\/p>\n

SEAWEED TO THE RESCUE: STOPPING BLEEDS NATURALLY<\/strong><\/h3>\n

Seaweed has a long history of use in traditional wound care, particularly among coastal
\ncommunities who relied on readily available marine resources. Fishermen and sailors used
\nto apply fresh or dried seaweed directly to cuts and wounds to help absorb blood,
\nprotect the injury, and promote healing.<\/p>\n

Brown seaweed was especially valued because of their soft texture when wet and their ability
\nto hold moisture, which helped cover wounds and limit continued bleeding.<\/p>\n

Over time, scientists discovered that compounds within these seaweeds\u2014especially alginates\u2014were responsible
\nfor many of the beneficial effects observed in traditional use, allowing ancient knowledge to
\nbe transformed into modern, evidence-based wound care materials.<\/p>\n

FROM TRADITIONAL USE TO SCIENTIFIC EVIDENCE AND INDUSTRIAL<\/strong>
\nAPPLICATIONS<\/strong><\/h4>\n

Alginate (also called alginic acid) was first discovered in the nineteenth century by the British
\nchemist E. C. C. Stanford, who extracted this natural substance from a brown seaweed
\nvariety called Laminaria. Early publications and studies focused on its physical and chemical
\nproperties, such as its ability to absorb fluids, form viscous solutions, and create gels.<\/p>\n

While alginate was initially exploited in industries such as food, textiles, and paper, its
\nbiocompatibility and gel-forming properties led the pharmaceutical industry to adopt it in the
\nmid-20\u1d57\u02b0 century as a versatile excipient used to support and control drug delivery.
\nSeaweeds \u2014 especially brown seaweeds \u2014 are large marine algae
\nrich in natural polysaccharides such as alginate. These polymers have
\nunique physical and chemical properties that make them useful in
\nwound care.<\/p>\n

Alginate is extracted from the cell walls of brown seaweed such as
\nLaminaria species. It contains molecular blocks of mannuronic and
\nguluronic acid that can form gels when in contact with fluids.<\/p>\n

Around the same time, specific interest in the hemostatic potential of alginate emerged
\nthrough the work of British surgeon George Blaine, who, during the 1940s, investigated
\ncalcium alginate use on wounds. Blaine observed that when applied to bleeding wounds,
\ncalcium alginate not only absorbed blood but also promoted clot formation by releasing
\ncalcium ions\u2014an essential factor in the coagulation process.<\/p>\n

In France, surgeon Jean Gosset was among the first clinicians to draw attention to the
\nhemostatic potential of alginate materials. At a 1949 session of the Acad\u00e9mie de Chirurgie
\n(Academy of Surgery) in Paris, Gosset shared clinical observations using calcium alginate on
\nvarious wounds and concluded that it offers genuine potential. He encouraged its preparation
\non a commercial scale and supported the launch of Coalgan\u00ae in 1949<\/p>\n

www.coalgan-<\/a>gamme.com<\/p>\n

The works of Blaine and Gosset marked the first serious clinical explorations of alginate as a
\nmedical material, transforming a natural seaweed extract into a scientifically recognized
\nhemostatic agent. This paved the way for the development of calcium alginate medical
\ndevices used in advanced wound care for hemostasis and tissue repair (www.brothier.com).<\/p>\n

HOW STOP HEMO\u00ae STOPS BLEEDING: MECHANISM OF ACTION<\/strong><\/h4>\n

Inspired by the natural properties of algae, Stop H\u00e9mo\u00ae changes upon contact with blood.
\nThis physical and chemical transformation allows it to act both mechanically and biologically,
\npromoting effective coagulation. Its calcium alginate:
\n1- Absorbs blood
\n2- Hydrates and forms a protective gel, which acts like a temporary barrier, trapping
\nblood cells and clotting factors at the wound site
\n3- Releases calcium ions at bleeding site (calcium ions are factor IV of the coagulation
\ncascade, essential for the clotting process)
\n4- Does not stick to the newly formed clot: the gelified structure ensures an atraumatic
\nremoval.
\nThis nature-inspired action makes it a suitable first-aid solution for everyday situations.
\nReady to use and designed for life\u2019s unexpected moments, it offers calm and confidence
\nCoalgan\u00ae, a hemostatic swab indicated for the treatment of minor
\nnosebleeds, is made of calcium alginate fibers and thus delivers the
\nhemostatic properties of algae. It is nowadays internationally available
\nunder the brand names Stop H\u00e9mo\u00ae<\/a>, BleedCease\u00ae, NasalCease\u00ae and
\nChicare\u00ae (www.brothier.com)<\/p>\n

KEY POINTS TO BEAR IN MIND<\/strong><\/h4>\n

The story of seaweed in medicine is one of transformation: from traditional use along coastlines
\nto sophisticated biomedical treatments in modern households and hospitals.
\nSeaweed\u2019s physical and chemical properties are particularly useful in hemostasis: it absorbs
\nblood, hydrates, forms a protective gel and releases its calcium ions at the bleeding site to
\nsupport the natural process of coagulation. Those properties, once observed by sailors, have
\nsince been harnessed and refined through industrial processing\u2014transforming alginate into
\nhemostatic and healing medical devices.<\/p>\n

Thus, the ocean gave us a powerful resource, and we used it wisely – advancing patient care
\nwhile reinforcing our responsibility to protect marine ecosystems.<\/p>\n

Join the movement by exploring the work of our partner, 1Ocean<\/a>, and be part of a more sustainable future for
\nhealthcare, the ocean and the climate: https:\/\/www.mission-1ocean.com\/projet\/forets-sous-<\/a>
\nmarines-un-enjeu-pour-lhumanite\/ Restoring our underwater forests is more than protecting biodiversity,
\nit\u2019s a bold step toward safeguarding our climate for the future.
\n\u2014 Alexis Rosenfeld, Project Leader at 1 OCEAN<\/p>\n

when bleeding occurs – whether from a sudden nosebleed, delicate gum bleeding, or a minor
\nskin injury – helping you care for yourself and your loved ones when it matters most.<\/p>\n

SUSTAINABILITY AND THE FUTURE OF SEAWEED IN MEDICINE<\/strong><\/h4>\n

As sustainability becomes a central concern in healthcare, seaweed stands out as a natural
\nresource uniquely suited to meet both medical and environmental challenges. Unlike
\nterrestrial crops, seaweed doesn\u2019t require fertilizer, pesticides, freshwater, or land, and it
\ngrows rapidly.
\nThis ease of cultivation and exceptional sustainability are matched by a rich biochemical
\ndiversity, positioning seaweed as both an environmentally responsible resource and a
\npromising source of therapeutic compounds.
\nSeaweeds are rich in polysaccharides, polyphenols, proteins, and pigments, which possess
\nvarious therapeutic properties. These compounds have shown potential as anti-inflammatory,
\nantimicrobial, antiviral, antitumor, and antioxidant agents, among others.
\nStay tuned for our publication regarding seaweed benefits in healing by reducing
\ninflammation, fighting bacteria, and promoting tissue growth!<\/p>\n

Sources:
\n1. Hemostasis, https:\/\/my.clevelandclinic.org\/health\/symptoms\/21999-hemostasis, accessed<\/a>
\non 06\/01\/2026.
\n2. P\u00e9rez-Llor\u00e9ns, J.L., Critchley, A.T., Cornish, M.L.\u00a0et al.\u00a0Saved by seaweeds (II):
\nTraditional knowledge, home remedies, medicine, surgery, and pharmacopoeia.\u00a0J Appl
\nPhycol\u00a035, 2049\u20132068 (2023). https:\/\/doi.org\/10.1007\/s10811-023-02965-6.
\n3. Hylenne\u00a0Bojorges,\u00a0 Amparo\u00a0L\u00f3pez-Rubio ,\u00a0 Antonio\u00a0Mart\u00ednez-Abad ,\u00a0 Mar\u00eda Jos\u00e9\u00a0Fabra ,
\nOverview of alginate extraction processes: Impact on alginate molecular structure and<\/p>\n

techno-functional properties, Trends in Food Science &amp; Technology, Volume
\n140,\u00a0October 2023. https:\/\/doi.org\/10.1016\/j.tifs.2023.104142
\n4. Blaine G. Experimental Observations on Absorbable Alginate Products in Surgery : Gel,
\nFilm, Gauze and Foam. Ann Surg. 1947 Jan;125(1):102-14. doi: 10.1097\/00000658-
\n194701000-00011. PMID: 17858907; PMCID: PMC1803201.
\n5. Histoire de l\u2019h\u00e9mostase locale, Acad\u00e9mie de Chirurgie Magazine, 3 \u00e8me trimestre 2012.
\n6. Pereira L, Cotas J. Seaweed: a sustainable solution for greening drug manufacturing in
\nthe pursuit of sustainable healthcare. Explor Drug Sci.
\n2024;2:50\u201384.\u00a0https:\/\/doi.org\/10.37349\/eds.2024.00036
\nNET26SHE03A \u2013 janv 2026<\/p>\n","protected":false},"excerpt":{"rendered":"

When it comes to stopping bleeding, your body is like a tiny, highly trained emergency team\u2014sending platelets, clotting factors, and a flood of chemical signals to patch up the damage before you even notice it. But sometimes even the best emergency team needs a little backup to get the job done! WHAT IS HEMOSTASIS? Hemostasis […]<\/p>\n","protected":false},"author":2,"featured_media":1137,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[15,13,14],"tags":[],"class_list":["post-1257","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-health-and-wellness","category-nosebleeds","category-superficial-wounds"],"acf":[],"yoast_head":"\nWHY LOOK TO THE OCEANS\u2026. 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