Allergen Collection (page 2)

Carpet beetle larva hairs, SEM
Beetle larva hairs. Coloured scanning electron micrograph (SEM) of hairs from a carpet beetle larva (family Dermestidae). These spear-headed hairs can often cause irritation when they come into

Carpet beetle larva hair, SEM
Beetle larva hair. Coloured scanning electron micrograph (SEM) of a hair from a carpet beetle larva (family Dermestidae). Large numbers of these spear-headed hairs can cause irritation when they come

Carpet beetle larval hairs, SEM
Carpet beetle larval hairs. Coloured scanning electron micrograph (SEM) of the hairs of a carpet beetle (family Dermestidae). Carpet beetle larvae are found in the dirtier areas of homes

Human diseases. Artwork of a male silhouetted figure, surrounded by various disease-causing organisms. The mosquito (Anopheles gambiae, upper left) transmits a parasitic protozoan it bites

Artwork of mast cells in an allergic response
Allergic response. Artwork showing mast cells during an allergic response. Allergens (green structures) from foreign bodies have bound to antibodies (yellow)

Coloured SEM of trachea surface with pollen & dust

Allergy food challenge
MODEL RELEASED. Food challenge. 10-year-old boy undergoing a double-blind oral food challenge to test for a food allergy. The boy will eat a variety of foods one by one

Allergens. Conceptual computer artwork of allergens in the nasal cavity. The spiky spheres could represent pollen grains, while the smooth spheres could represent dust particles

Dust mite allergy, conceptual artwork. Dust mites (Dermatophagoides sp.) are tiny arachnids that live in the home, feeding on shed skin cells

Asthma, artwork
Asthma. Computer artwork of allergens (green) in the airways of the lungs. Allergens, such as dust and pollen, can trigger an asthma attack

Asthma. Computer artwork of allergens (blue and green) amongst alveoli (tiny air sacs, beige) in a lung. Allergens, such as dust and pollen, can trigger an asthma attack

Household dust taken from a vacuum cleaner. Such dust comprises skin cells, dust mites, hairs, soil and earth, pollen grains, fungal spores and food particles

Salted peanuts (Arachis hypogaea) in a bowl. Peanuts are a good source of E and B-complex vitamins, and protein. A small percentage of people have a peanut allergy

Eyelash mites, artwork

Dust mites, artwork

Eyelash mite, artwork

Dust mite, artwork

Family playing in a wood
MODEL RELEASED. Kicking autumn leaves. Mother and father and son and daughter kicking leaves in a wood in autumn

Parents and children playing in a wood
MODEL RELEASED. Kicking autumn leaves. Parents and children kicking leaves in a wood in autumn

Father and children playing in a wood
MODEL RELEASED. Playing with autumn leaves. Father and son and daughter playing with leaves in a wood in autumn

Assorted breads

Smiling children lying on autumn leaves
MODEL RELEASED. Smiling girl and boy lying on autumn leaves

Gluten-free bread. This is made with materials free of gluten, the albumin protein that is found in some cereals, especially wheat

Hay fever, artwork
Hay fever. Artwork depicting hay fever showing pollen grains (yellow-blue) entering the nasal cavity (right) of a hay fever sufferer. Pollen grains are released when flowering plants reproduce

Dust mite, SEM

Histamine allergic reaction, diagram
Histamine allergic reaction. Diagram showing the process that leads to the release of histamine during an allergic reaction. Cells called mast cells (orange) mediate this response

Allergic immune response, artwork
mast cell reponse: Bacteria (blue) bounds to a mast cell (White ball) and histamine (orange) was triggered

Allergic response, artwork
Allergic response. Computer artwork showing the process that produces an allergic reaction. Antigens (blue), such as pollen

Pollen and dust, artwork
Pollen and dust, computer artwork. Both pollen and dust are allergens that can cause allergic rhinitis when inhaled. Allergic rhinitis is the inflammation of the lining of the nasal cavity

Hay fever, conceptual artwork. Head of a human figure with flower images representing the allergic reaction known as hay fever

Aspergillus fungus spores, SEM
Aspergillus fungus spores, coloured scanning electron micrograph (SEM). These chains of spores (orange) are the reproductive cells of the fruiting body, or conidiophore

Trachea with pollen grains, SEM
Trachea (windpipe) with pollen grains, coloured scanning electron micrograph (SEM). When airborne particles such as pollen grains are breathed in through the nose or mouth

Mite, SEM
Mite. Coloured scanning electron micrograph (SEM) of a mite. Mites belong to the subclass Acarina and are one of the most diverse invertebrate groups

Dimethyl fumarate allergen molecule
Dimethyl fumarate, molecular model. This chemical is used to treat the skin disorder psoriasis and as a mould inhibitor. However

Pollen grain, SEM

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"Allergen: Unseen Culprits Triggering Allergic Reactions" Did you know that tiny creatures like eyelash mites and dust mites can wreak havoc on our immune systems? These microscopic organisms, captured under the lens of a scanning electron microscope (SEM), are often responsible for triggering allergic reactions in many individuals. Take a closer look at the world of allergens. SEM images reveal the intricate details of eyelash mite tails, showcasing their presence on our very own lashes. These minuscule creatures, invisible to the naked eye, can cause itching and irritation for those who are sensitive to them. But it's not just these critters that provoke allergies. Hazel pollen grains and ivy pollen from plants like Hedera helix also play a role in triggering allergic responses. SEM images allow us to observe their unique structures up close, giving insight into how they interact with our bodies. Delving deeper into the microscopic realm, we discover follicle mite heads lurking within hair follicles. These unwelcome guests may contribute to skin irritations and allergies when present in excessive numbers. Allergens don't stop there – they infiltrate even further into our respiratory system. Biomedical illustrations depict allergens making their way into the trachea, causing discomfort and breathing difficulties for allergy sufferers. The battle between allergens and our immune system is illustrated through biomedical cross-sections showing antibodies binding to mast cells after exposure to these troublesome substances. In response, mast cells release histamine – a chemical compound responsible for common allergy symptoms such as sneezing or watery eyes. Dust mites make yet another appearance as notorious allergenic agents. SEM images provide an up-close view of these tiny arachnids that thrive in household environments such as bedding or upholstery materials. Understanding these unseen culprits is crucial in managing allergies effectively.