inclusion complex Cyclodextrin can form inclusion complex with a wide variety of solid, liquid and gaseous compounds.

What is cyclodextrin used for?

In the pharmaceutical industry, cyclodextrins have mainly been used as complexing agents to increase the aqueous solubility of active substances poorly soluble in water, in order to increase their bioavailability and to improve stability.

What is inclusion complex in cyclodextrin?

In respect of their chemical structure, cyclodextrins have a cavity size which is determined by the number of glucose units. … In addition, the space inside the molecule of the cyclodextrins allows the formation of inclusion complexes with compounds that present little solubility [2,3,5].

What is cyclodextrin made from?

Cyclodextrins are produced from starch by enzymatic conversion. They are used in food, pharmaceutical, drug delivery, and chemical industries, as well as agriculture and environmental engineering. Cyclodextrins are composed of 5 or more α-D-glucopyranoside units linked 1->4, as in amylose (a fragment of starch).

How do cyclodextrins work?

Cyclodextrins form a toroid (truncated cone) configuration with multiple hydroxyl groups at each end. This allows them to encapsulate hydrophobic compounds without losing their solubility in water. Among other applications, cyclodextrins can be used to carry hydrophobic drug molecules into biological systems.

Is cyclodextrin a Supramolecule?

Supramolecular complexes with macrocyclic host molecules through macromolecular recognition. Our research employs cyclodextrins (CDs) as cyclic host molecules to construct supramolecular materials. … Previously, main chain type supramolecular complexes and materials have been summarized in some reviews.

Where can I get cyclodextrin?

Cyclodextrins can be found in nature. Some bacteria (e.g. Bacillus macerans) produce CDs from starch by enzymatic process for their energy storage. This process is mimicked by the industry using cyclodextrin glycosyltransferase enzyme and starch (corn, potato, manioc, etc) as raw material.

What is cyclodextrin in skincare?

Cyclodextrin: an active carrier, stabilizer and solubilizer through encapsulation of your active cosmetics molecules. … The entrapped molecule gains several traits and properties that can positively improve the cosmetic products and fragrances.

What drugs contain cyclodextrin?


Drug/cyclodextrin Trade name Formulation
Itraconazole Sporanox Oral and intravenous solution
Mitomycin MitoExtra, Mitozytrex Intravenous infusion
Sulfobutylether β-cyclodextrin sodium salt (SBEβCD)
Aripiprazole Abilify Intramuscular solution

What are inclusion complexes?

Inclusion complexes are molecular compounds having the characteristic structure of an adduct, in which one compound (host molecule) spatially encloses another. … The resulting inclusion compounds belong to the type of host-guest complexes.

How do you make inclusion complex?

The inclusion complexes were prepared by four different methods, namely, physical mixing, kneading, co-precipitation, and solvent evaporation. The prepared complexes were characterized using differential scanning colorimetry, scanning electron microscopy, and x-ray diffractometry.

What are the advantages properties of cyclodextrin inclusion complexes?

Cyclodextrins and their derivatives have the ability to encapsulate the bioactive compounds into its cavity and protect these from the environmental conditions, improve the solubility, bioavailability, and other properties also.

What is natural cyclodextrin?

Cyclodextrins are naturally occurring oligosaccharides consisting of six, seven or eight glucose monomers arranged in a cyclical form created from enzymatic starch conversion ( Fig. 1). This cyclical form creates a cone into which another molecule may reside.

What are the types of cyclodextrins *?

In nature, cyclodextrins are available in three different forms α, β, and γ based on the number of number of glucose monomers. The number of glucose monomers in α, β, and γ cyclodextrin is 6, 7, and 8, respectively. Cyclodextrins have a lipophilic central core with hydrophilic outer surfaces.

Is cyclodextrin organic?

Cyclodextrins are soluble in water and insoluble in most organic solvents (Table 22.2). Solubility increases as the temperature increases. Beta-cyclodextrin is the least soluble cyclodextrin in water. … III Properties.

Solvent Solubility, %
N-Methylpyrrolidone 14.8
Ethylene glycol 7.0
Pyridine 3.5
Propylene glycol 0.5

Does cyclodextrin clean arteries?

An international team has now found that cyclodextrin dissolves cholesterol crystals and reduces atherosclerotic plaques. This is a promising therapeutic approach for treating atherosclerosis. Their find was published in Science Translational Medicine.

Which is better alpha or beta cyclodextrin?

The potencies of cyclodextrin for solubilizing various components of erythrocytes were alpha greater than beta much greater than gamma for phospholipids, beta much greater than gamma greater than alpha for cholesterol and beta much greater than gamma greater than alpha for proteins.

What is 2 hydroxypropyl B cyclodextrin?

2-Hydroxypropyl-β-cyclodextrin (HP-β-CD) is a chemically modified cyclic oligosaccharide produced from starch that is commonly used as an excipient. Although HP-β-CD has been suggested as a potential adjuvant for vaccines, its immunological properties and mechanism of action have yet to be characterized.

What is Catenane and rotaxane?

Catenanes are two interlocked cycles, like two links in a chain, which cannot be separated without the breaking of a covalent bond. Rotaxanes are similar but are composed of a cycle encircling an acyclic molecule like a ring around a thread.

Is beta cyclodextrin safe?

Most of the hydrophilic derivatives of natural cyclodextrins like 2-hydroxypropyl-β-cyclodextrin and sulphobutylether-β-cyclodextrin are considered safe for parenteral administration. Higher dose of cyclodextrins may be harmful.

Does cyclodextrin lower cholesterol?

Cyclodextrin polymer could effectively dissolve cholesterol and induce cholesterol efflux from macrophages in vitro. Cyclodextrin polymer exhibited improved pharmacokinetics, plaque targeting, and therapeutic efficacy in vivo. At high doses, cyclodextrin polymer did not exhibit ototoxicity.

What dissolves artery plaque?

HDL is like a vacuum cleaner for cholesterol in the body. When it’s at healthy levels in your blood, it removes extra cholesterol and plaque buildup in your arteries and then sends it to your liver. Your liver expels it from your body. Ultimately, this helps reduce your risk of heart disease, heart attack, and stroke.

How much does cyclodextrin cost?

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What food is cyclodextrin found in?

Amylolytic enzyme-processed foods such as different beer samples, corn syrup of different dextrose equivalents, and thermally-processed food such as bread, contained minute amounts of different types of cyclodextrins.

Is hydroxypropyl cyclodextrin bad for skin?

A plant- derived or synthetic carbohydrate that functions as a chelating agent and stabilizer. It is considered safe for use in cosmetics and has also been deemed safe for oral consumption (where its application, of course, differs from that of cosmetics).

What does tocopheryl acetate do for skin?

Tocopheryl acetate is a form of vitamin E, an antioxidant, which helps fight free radical damage and promote skin healing to diminish signs of aging. It also provides moisture and strengthens skin’s protective barrier to prevent moisture loss.

Is BHT in skincare bad?

Butylated hydroxytoluene, a potent synthetic antioxidant that also has health concerns when consumed orally. The amount of BHT uses in cosmetic products is typically 0.01-0.1%, and does not pose a risk to skin, nor does it penetrate skin far enough to be absorbed into the bloodstream.

Is cyclodextrin a drug?

Cyclodextrins are a family of cyclic oligosaccharides with widespread usage in medicine, industry and basic sciences owing to their ability to solubilize and stabilize guest compounds. In medicine, cyclodextrins primarily act as a complexing vehicle and consequently serve as powerful drug delivery agents.

Is cyclodextrin approved by the FDA?

Hydroxypropyl-beta-cyclodextrin (CD) is an FDA-approved compound for solubilizing, capturing, and delivering lipophilic drugs in humans.

Is cyclodextrin safe for humans?

Cyclodextrins alone are poorly absorbed transdermally, but in combination with absorption-promoting agents, they are able to permeate the skin by 12%, 43%, and 53% for β-CD, RM-β-CD, and HP-β-CD, respectively. Concentrations up to 0.1% of α-, β-, and γ-cyclodextrins are considered safe.