gel

A gel is a semi-solid that can have properties ranging from soft and weak to hard and tough. Gels are defined as a substantially dilute cross-linked system, which exhibits no flow when in the steady-state, although the liquid phase may still diffuse through this system. A gel has been defined phenomenologically as a soft, solid or solid-like material consisting of two or more components, one of which is a liquid, present in substantial quantity. By weight, gels are mostly liquid, yet they behave like solids because of a three-dimensional cross-linked network within the liquid. It is the crosslinking within the fluid that gives a gel its structure and contributes to the adhesive stick. In this way, gels are a dispersion of molecules of a liquid within a solid medium. The word gel was coined by 19th-century Scottish chemist Thomas Graham by clipping from gelatine. The process of forming a gel is called gelation.

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Two novel hydrogen production catalysts based on mineral gel and 'crystalline-amorphous' dual-phase nano-aluminium alloy

Sperm-blocking vaginal gel could be a reliable contraceptive method

Development of an easy-to-synthesize self-healing gel composed of entangled ultrahigh molecular weight polymers

Gel-based encryption can only be unlocked with key of light and heat

Gel-like, radioactive tumor implant obliterates pancreatic cancer in mice

Gel made from okra stops bleeding in damaged hearts

Newly-Developed Topical Gel Could Potentially Treat Periodontitis

Gel treats gum disease by fighting inflammation

Scientists develop gel made from spider silk proteins for biomedical applications

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Asics Gel Nimbus 24 review

Gel that repairs heart attack damage could improve health of millions

Low-Cost Gel Harvests Drinking Water From Dry Desert Air

Cheap gel film pulls buckets of drinking water per day from thin air

Low-cost gel film can pluck drinking water from desert air

Protein gel could help treat type 1 diabetes

Stanford engineers develop a simple delivery method that enhances a promising cancer treatment: A gel composed of only two ingredients can provide a temporary, hospitable environment that helps activate modified immune cells to attack cancerous tumors

Biodegradable gel boosts immune system's attack on several cancers in mice

Biodegradable Gel Boosts Immune System’s Attack on Cancer After Tumors Are Surgically Removed