Polarised Light Micrograph Collection (page 3)

Vitamin B7 crystals, light micrograph
Vitamin B7 crystals, polarised light micrograph. Vitamin B7, also called biotin or vitamin H, is an essential nutrient used by the body in cell growth

Adenosine crystals, light micrograph
Adenosine crystals, polarised light micrograph. Adenosine is a nucleoside molecule composed of the base adenine bonded to the sugar ribose

Enkephalin crystals, light micrograph
Enkephalin crystals, polarised light micrograph. Enkephalin is an endorphin found in the human brain. There are two variants: Met-enkephalin (seen here), which contains the amino acid methionine

Vitamin B1 crystals, light micrograph
Vitamin B1 crystals, polarised light micrograph. Vitamin B1, also called thiamine, is an essential nutrient that humans are unable to produce and so need to obtain from their diet

Cholecystokinin crystals, polarised light micrograph. Cholecystokinin (CCK) is a hormone responsible for promoting the digestion of fats and proteins

Glutamic acid crystals, light micrograph
Glutamic acid crystals, polarised light micrograph. Glutamic acid is an non-essential amino acid, in which it can be synthesised by the body and does not need to be obtained from food

Cortisol crystals, light micrograph
Cortisol crystals, polarised light micrograph. Cortisol is a steroid hormone produced by the adrenal glands, which sit on top of the kidneys

GABA crystals, light micrograph
GABA crystals. Polarised light micrograph of gamma-aminobutyric acid (GABA). GABA is an inhibitory neurotransmitter (nerve signalling chemical) that regulates the excitability of all nerve cells

Acetylcholine crystals, light micrograph
Acetylcholine crystals, polarised light micrograph. Acetylcholine (ACh) is a neurotransmitter (nerve signalling chemical) that plays an important role in relaying impulses at myoneural (muscle-nerve)

Retinoic acid crystal, light micrograph
Retinoic acid crystal, polarised light micrograph. Retinoic acid is one of three forms of vitamin A; the other two are retinol and retinal

Cholecystokinin crystal, polarised light micrograph. Cholecystokinin (CCK) is a hormone responsible for promoting the digestion of fats and proteins

NMDA crystals, light micrograph
NMDA crystals, polarised light micrograph. NMDA (N-methyl-D-aspartic acid) is an amino acid derivative and a neurotransmitter (nerve signalling chemical)

Immunoglobulin crystals, light micrograph
Immunoglobulin crystals, polarised light micrograph. Immunoglobulins, or antibodies, are a type of globulin protein that are produced by B cells (a type of white blood cell)

Butchers broom stem, light micrograph
Butchers broom stem. Polarised light micrograph of a section through a butchers broom stem (Ruscus aculeatis) showing many vascular bundles (dark clusters) within the plant cortex (orange)

Umbrella grass stem, light micrograph
Umbrella grass stem. Polarised light micrograph of a section through a umbrella grass stem (Cyperus alternifolius). Vascular bundles (brown) can be seen containing xylem (larger openings)

Purple moor grass stem, light micrograph
Purple moor grass stem. Polarised light micrograph of a section through a purple moor grass stem (Molinia caerula). Vascular bundles (round orange structures)

Bamboo stem, light micrograph
Bamboo stem. Polarised light micrograph of a section through a bamboo stem (Bambusa vulgaris). Vascular bundles can be seen (yellow/green) containing xylem (larger openings)

Maize stem, light micrograph
Maize stem. Polarised light micrograph of a section through a maize plant stem (Zea mays). A vascular bundles (brown) can be seen containing xylem (larger openings)

Spiny rush stem, light micrograph
Spiny rush stem. Polarised light micrograph of a section through a spiny rush stem (Juncus actus). Vascular bundles can be seen (purple/red) containing xylem (larger openings)

Sugar cane stem, light micrograph
Sugar cane stem. Polarised light micrograph of a section through a sugar cane stem (Saccharum officinareum). Vascular bundles (round blue/purple structures)

Sarsaparilla plant stem, light micrograph
Maize root. Polarised light micrograph of a section through the root of a sarsaparilla plant (Smilax regelii) showing a vascular cylinder

Inulin crystals, light micrograph
Inulin crystals. Polarised light micrograph of inulin crystals (yellow) stored inside a Dahlia sp. root tuber. Inulin is a naturally-occurring plant sugar found in the roots or rhizomes of some

Black burdock stem, light micrograph
Black burdock stem. Polarised light micrograph of a transverse section through the stem of a black burdock (Arctium lappa) plant

Stinging nettle leaf, light micrograph
Stinging nettle leaf. Polarised light micrograph of the underside of a stinging nettle (Urtica dioica) leaf. Two types of hairs are seen

Sunflower root, light micrograph
Sunflower root. Polarised light micrograph of a transverse section through the root of a sunflower (Helianthus annuus) plant

Orchid starch grains, light micrograph
Orchid starch grains. Polarised light micrograph of a transverse section through an orchid tuber (Phaius grandifolius), showing the starch grains

Dodder parasitic plant. Polarised light micrograph of a section through a host plant parasitised by a dodder (Cuscuta sp.)

Rhubarb leaf, light micrograph
Rhubarb leaf. Polarised light micrograph of a longitudinal section through a rhubarb (Rheum sp.) leaf. The dark blue structure is a vascular bundle

Elm stem, light micrograph
Elm stem (Ulmus procera) section, polarised light micrograph. The black horizontal lines are multiseriate rays, which are composed of several rows of cells

Black pepper stem, light micrograph
Black pepper stem. Polarised light micrograph of a transverse section through the stem of a black pepper (Pipa nigrum) plant

Paracetamol crystals, light micrograph
Paracetamol. Polarised light micrograph of paracetamol (acetaminophen) crystals. Paracetamol is an analgesic (pain killer) and antipyretic (reduces fever)

Light micrograph of arginine crystals
Polarised light micrograph of crystals of the amino acid arginine (ARG). There are twenty standard amino acids, which form the basic building blocks of all living matter

Co-enzyme NAD (nicotinamide) crystals
Polarised light micrograph of crystals of the co- enzyme nicotinamide adenine dinucleotide (NAD). This is an extremely important and widespread co- enzyme found in nature

Vitamin C crystals, PLM
Vitamin C crystals, polarised light micrograph. Vitamin C (ascorbic acid) is a chemical essential for good health. It is required for the production of collagen

Polarised LM of vitamin D crystals
Vitamin D. Polarised light micrograph of crystals of vitamin D. Vitamin D is fat-soluble, and is found in foods such as animal fats, milk, butter and eggs

Light micrograph of methionine crystals
Polarised light micrograph of crystalline Methionine. Magnification: x40 at 35mm size

Lysozome protein crystals
Lysozyme enzyme crystals. Polarised light micro- graph of crystals of the enzyme lysozyme from the egg white (albumen) of a domestic chicken

Folic acid crystals

Light micrograph of thiamine crystals

Vitamin B3 crystals
Vitamin B3. Polarised light micrograph of vitamin B3 crystals. Vitamin B3 exists in two main forms: niacin and niacinamide

Copper sulphate crystals, PLM
Copper sulphate crystals, polarised light micrograph. This is hydrated copper (II) sulphate, which has the chemical formula CuSO4.5H2O. On a macroscopic scale, the crystals are a bright, intense blue

Polarised LM of niacinamide crystals
Nicotinamide. Polarised light micrograph of crystals of nicotinamide, or niacinamide. This is the amide of nicotinic acid. The acid and amide are both B vitamins, and are equally active

PLM of crystals of pantothenic acid
Pantothenic acid. Polarised light micrograph of crystals of pantothenic acid, a vitamin of the B- complex group of vitamins. Magnification: x63 at 35mm size

Ascorbic and citric acid crystals, PLM
Citric and ascorbic acid crystals, polarised light micrograph. Ascorbic acid, also known as vitamin C, is a nutrient essential for health

Cholesterol crystals
Cholesterol. Light micrograph obtained with polarised light of crystals of cholesterol. It is a lipid (fatty substance) found in vertebrates and in foods from animal sources

Nylon 6 crystals
Nylon crystals. Polarised light micrograph of nylon 6 spherulites (crystals). The spherulites appear as yellow and blue circles in a cross pattern

Plant stem trichomes, light micrograph
Plant stem trichomes. Polarised light micrograph of simple multicellular hairs (trichomes) on the surface (epidermis) of a stem of hedge woundwort (Stachys sylvatica)

Tree xylem vessels, light micrograph
Tree xylem vessels. Polarised light micrograph of a vertical section through the primary wood vessels (xylem vessels) of a tree

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Capturing the mesmerizing beauty of microscopic crystals through polarised light micrography is truly a sight to behold. In this captivating world, caffeine crystals take center stage, showcasing their intricate patterns and delicate structure under the lens. The vibrant hues and symmetrical arrangements of these caffeine crystals create a visual spectacle that leaves us in awe. Moving on from caffeine, oxytocin hormone crystals make their appearance in PLM C016 / 7196, revealing an enchanting display of shimmering facets. These tiny wonders hold within them the power to evoke feelings of love and bonding. Similarly, oxytocin crystals captured in another light micrograph unveil their breathtaking elegance as they glisten with ethereal radiance. Cortisol crystals also join the lineup, offering a glimpse into their unique composition through yet another stunning light micrograph. Their sharp edges and intricate formations remind us of the complex nature of stress hormones present within our bodies. Returning to caffeine once again, its crystalline form takes on new dimensions when observed under polarised light microscopy. The interplay between colors and shapes creates an otherworldly landscape that transports us into a realm where science meets art. Testosterone makes its grand entrance through PLM crystal imagery, displaying its own distinct patterned arrangement that reflects strength and vitality. This snapshot allows us to appreciate the intricacies hidden within this essential hormone for both men and women alike. Insulin crystals come alive in yet another mesmerizing light micrograph (C017 / 8249), showcasing their delicate symmetry while reminding us of their vital role in regulating blood sugar levels within our bodies. Oxytocin hormone returns once more (LM C016 / 7195), captivating our imagination with its alluring crystal formation that hints at deep emotional connections we share as humans - bonds formed by trust, empathy, and compassion. Amidst these crystalline marvels lies a water fern rhizome captured under bright illumination.