What is the meaning of host in chemistry?
A molecular entity that forms complexes with organic or inorganic guests, or a chemical species that can accommodate guests within cavities of its crystal structure.
What is the meaning of host and guest?
The host at a party is the person who has invited the guests and provides the food, drink, or entertainment. […]
What is host and guest in supramolecular chemistry?
Overview. Host–guest chemistry is a branch of supramolecular chemistry in which a host molecule forms a chemical compound with a guest molecule or ion. The two components of the compound are held together by non-covalent forces, most commonly by hydrogen-bonding.
What are host guest interactions?
Host–guest interactions involve two molecules or materials that can form complexes through unique structural relationships and noncovalent binding. Also referred to as molecular recognition, this type of interaction is widely found in biorecognition processes, such as enzyme–inhibitor and antigen–antibody interactions.
What does hosting mean in technology?
Hosting, in its most generic sense, is a service through which storage and computing resources are providing to an individual or organization for the accommodation and maintenance of one or more websites and related services.
How does self assembly work?
Self-assembly is a process in which a disordered system of pre-existing components forms an organized structure or pattern as a consequence of specific, local interactions among the components themselves, without external direction.
Why is supramolecular chemistry important?
A supramolecular approach has been used extensively to create artificial ion channels for the transport of sodium and potassium ions into and out of cells. Supramolecular chemistry is also important to the development of new pharmaceutical therapies by understanding the interactions at a drug binding site.
What is molecular recognition in chemistry?
Molecular recognition is the specific interaction between two or more molecules, which exhibit molecular complementarity, through noncovalent bonding such as hydrogen bonding, metal coordination, hydrophobic forces, van der Waals forces, π–π interactions, and/or electrostatic effects.
What are the types of host?
Types of hosts
- accidental host. a host that shelters an organism which does not usually parasitize that host.
- incidental host (a.k.a. dead-end host) a host that shelters an organism but is unable to transmit the organism to a different host.
- primary host (a.k.a. definitive/final host)
- reservoir host.
What is a host–guest complex?
A host–guest complex is an interesting configuration where the ‘host’ is a molecular configuration that resembles the shape of a ring, with the central cavity playing an essential role of hosting other ‘threads’ of polymer. The ‘thread’ polymer is the ‘guest’ and resides in the cavity in the host due to the host–guest interaction.
What is a transient non covalent guest host complex?
In aqueous media, transient non-covalent guest–host complexes form with CDs as a result of induced or permanent dipole–dipole (van der Waals’ type) interactions, hydrogen-bonding interactions, π–π interactions, and the hydrophobic properties of the guest molecule.
How do host–guest interactions regulate drug release function?
The formation of a host–guest complex based on molecular recognition is a reversible process that is highly appropriate for drug accommodation and release. Therefore, control of molecular interactions between hosts and guest resulted in regulated drug release function.
What’s new in host–guest chemistry in supramolecular networks?
Host–guest systems based on hyperbranched polymers together with their unique properties and various applications have been summarized. In this feature article, we survey recent developments in host–guest chemistry studied in surface-adsorbed physisorbed supramolecular networks. Molecular tweezers prevent tau deposition in mouse brains.