The present disclosure relates to a composition that includes a perovskite of A.sub.2BX.sub.4, where A includes an R-form of a chiral molecule of at least one of

##STR00001##

and/or an S-form of the chiral molecule, B includes a cation, X includes an anion, R.sub.1 includes a first carbon chain having between 2 and 5 carbon atoms, R.sub.2 includes at least one of a hydrogen atom, a halogen atom, a carboxylic acid group, an alkoxy group, and/or a second carbon chain, and R.sub.3 includes a third carbon chain.

According to the present invention, there is a demand for novel platinum(IV) complex which has sufficient water-solubility, stability, antitumor activity, and the like that are required as a medicine, and may be used clinically. Thus, provided is a platinum(IV) complex represented by the following General Formula (I) [wherein X.sub.1 and X.sub.2 each represent a halogen atom or are bonded together to form a dicarboxylate selected from the group consisting of oxalate, malonate, succinate, and o-phthalate; and Y represents a halogen atom. ##STR00001##

According to the present invention, there is a demand for novel platinum(IV) complex which has sufficient water-solubility, stability, antitumor activity, and the like that are required as a medicine, and may be used clinically. Thus, provided is a platinum(IV) complex represented by the following General Formula (I) [wherein X.sub.1 and X.sub.2 each represent a halogen atom or are bonded together to form a dicarboxylate selected from the group consisting of oxalate, malonate, succinate, and o-phthalate; and Y represents a halogen atom. ##STR00001##

Process of refrigeration induced by an external stimulus comprising the application of an external stimulus selected among hydrostatic pressure, uniaxial pressure, electric field and illumination with light, to an organic-inorganic hybrid material of crystalline structure with hexagonal packing, of formula ABX.sub.3 (I), where A is a given monovalent organic cation or a given mixture of monovalent organic cations or a given mixture of monovalent organic cations and monovalent inorganic cations, B is a given divalent metal cation, a given mixture of divalent metal cations, or a given 50/50% atomic mixture of a monovalent cation and a trivalent cation, and X is a halide anion or a mixture thereof. A device with cooling capacity induced by an external stimulus, comprising the above organic-inorganic hybrid material.

Process of refrigeration induced by an external stimulus comprising the application of an external stimulus selected among hydrostatic pressure, uniaxial pressure, electric field and illumination with light, to an organic-inorganic hybrid material of crystalline structure with hexagonal packing, of formula ABX.sub.3 (I), where A is a given monovalent organic cation or a given mixture of monovalent organic cations or a given mixture of monovalent organic cations and monovalent inorganic cations, B is a given divalent metal cation, a given mixture of divalent metal cations, or a given 50/50% atomic mixture of a monovalent cation and a trivalent cation, and X is a halide anion or a mixture thereof. A device with cooling capacity induced by an external stimulus, comprising the above organic-inorganic hybrid material.

Compositions and methods are provided for treating a pavement such as by microsurfacing or slurry sealing. The compositions contain iron chelants that are effective in reducing discoloration of the pavement surface.

The invention provides a composition containing hyaluronic acid (HA) or a pharmaceutically-acceptable salt thereof preserved with a cationic preservative and related methods. In one embodiment, the pharmaceutically-acceptable salt is sodium hyaluronate. In another embodiment, the cationic preservative includes benzalkonium chloride (BAK).

The invention provides a composition containing hyaluronic acid (HA) or a pharmaceutically-acceptable salt thereof preserved with a cationic preservative and related methods. In one embodiment, the pharmaceutically-acceptable salt is sodium hyaluronate. In another embodiment, the cationic preservative includes benzalkonium chloride (BAK).

The present disclosure relates to a composition that includes a perovskite of A.sub.2BX.sub.4, where A includes an R-form of a chiral molecule of at least one of ##STR00001##
and/or an S-form of the chiral molecule, B includes a cation, X includes an anion, R.sub.1 includes a first carbon chain having between 2 and 5 carbon atoms, R.sub.2 includes at least one of a hydrogen atom, a halogen atom, a carboxylic acid group, an alkoxy group, and/or a second carbon chain, and R.sub.3 includes a third carbon chain.

The present disclosure relates to a composition that includes a perovskite of A.sub.2BX.sub.4, where A includes an R-form of a chiral molecule of at least one of ##STR00001##
and/or an S-form of the chiral molecule, B includes a cation, X includes an anion, R.sub.1 includes a first carbon chain having between 2 and 5 carbon atoms, R.sub.2 includes at least one of a hydrogen atom, a halogen atom, a carboxylic acid group, an alkoxy group, and/or a second carbon chain, and R.sub.3 includes a third carbon chain.