Abstract
Lidocaine (Lido) is an amide local anesthetic that has both excitatory and inhibitory effects on the central nervous system, and is one of a group of commonly used local nerve block drugs that are used in the clinic. However, traditional Lido does not meet the transdermal performance requirements of surface anesthetic agents for treating pain in patients. Optimizing the preparation of a Lido transdermal preparation and improving the control of anesthetic depth and efficiency has become a challenge in the field of topical anesthesia. In this study, a new type of Lido nano-transdermal preparation, carboxymethyl chitosan-modified lidocaine liposomes (Lido-CMCSNLP), were constructed based on nano-liposomes. Carboxymethyl chitosan can enhance the permeability of hydrophilic macromolecular pathways by interacting with negatively charged membrane glycoproteins, which is beneficial for the transdermal absorption of Lido. Therefore, Lido-CMCS-NLP provides a new approach for research in clinical topical anesthesia and perioperative topical analgesics.
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