Meaning: 'Detecting' refers to the act of discovering or identifying something, in this case, chemical and biological agents.

Wrong options:

• rejected: 'Rejected' is a past participle that implies something has been dismissed, which does not fit the context of identifying agents.
• sorting: 'Sorting' is a gerund that refers to the action of categorizing, which does not relate to the act of identifying agents.
• enabling: 'Enabling' is a gerund that suggests making something possible, but it does not fit the context of the initial action of identifying agents.
• reemitted: 'Reemitted' is a past participle that describes the action of light being emitted again, which does not relate to the act of detecting.
• revolves: 'Revolves' is a verb that indicates movement around a point, which does not fit the context of identifying agents.
• binds: 'Binds' is a present tense verb that describes the action of attaching, which does not relate to the act of detecting.

Correct answer: binds

Explanation: The term 'binds' is a present tense verb that describes the action of attaching or connecting to a molecule. It fits grammatically as it describes what the plasmonic nanomaterial does in relation to the molecule of interest.

Meaning: 'Binds' means to attach or connect, particularly in a chemical context, referring to the interaction between the nanomaterial and the molecule.

Wrong options:

• rejected: 'Rejected' is a past participle that indicates something has been dismissed, which does not fit the context of forming a connection with a molecule.
• sorting: 'Sorting' is a gerund that refers to categorizing, which does not relate to the action of attaching to a molecule.
• enabling: 'Enabling' is a gerund that suggests making something possible, but it does not fit the context of the action of binding.
• reemitted: 'Reemitted' is a past participle that describes light being emitted again, which does not relate to the action of binding.
• revolves: 'Revolves' is a verb that indicates movement around a point, which does not fit the context of attaching to a molecule.
• detecting: 'Detecting' is a gerund that refers to identifying, which does not fit the context of the action of binding.

Correct answer: reemitted

Explanation: The word 'reemitted' is a past participle that describes the action of light being emitted again after interacting with the plasmonic material. It fits grammatically as it describes the state of the light in relation to the presence of the toxin.

Meaning: 'Reemitted' means to emit again, particularly in the context of light being reflected after interaction with a substance.

Wrong options:

• rejected: 'Rejected' is a past participle that implies something has been dismissed, which does not fit the context of light behavior.
• sorting: 'Sorting' is a gerund that refers to categorizing, which does not relate to the emission of light.
• enabling: 'Enabling' is a gerund that suggests making something possible, but it does not fit the context of light being emitted.
• binds: 'Binds' is a present tense verb that describes the action of attaching, which does not relate to the emission of light.
• revolves: 'Revolves' is a verb that indicates movement around a point, which does not fit the context of light emission.
• detecting: 'Detecting' is a gerund that refers to identifying, which does not fit the context of light behavior.

Correct answer: enabling

Explanation: The term 'enabling' is a gerund that functions as a noun in this context, indicating the action of making it possible for trace amounts of the toxin to be detected. It fits grammatically as it describes the result of the measurement process.

Meaning: 'Enabling' refers to the act of making something possible, in this case, the detection of trace amounts of the toxin.

Wrong options:

• rejected: 'Rejected' is a past participle that implies something has been dismissed, which does not fit the context of facilitating detection.
• sorting: 'Sorting' is a gerund that refers to categorizing, which does not relate to the action of making detection possible.
• binds: 'Binds' is a present tense verb that describes the action of attaching, which does not fit the context of enabling detection.
• reemitted: 'Reemitted' is a past participle that describes light being emitted again, which does not relate to the action of enabling detection.
• revolves: 'Revolves' is a verb that indicates movement around a point, which does not fit the context of facilitating detection.
• detecting: 'Detecting' is a gerund that refers to identifying, which does not fit the context of enabling detection.