Gasotransmitters such as NO, H2S, and CO have emerged as key players in the regulation of various pathophysiological functions, prompting the development of gas
therapy for various pathogeneses. Deficient production of
gasotransmitters has been linked to various diseases such as
hypertension, endothelial dysfunction,
myocardial infarction,
ischemia, and impaired wound healing, as they are involved in the regulatory action of angiogenesis. A better understanding of the regulatory mechanisms has given new hope to address the vascular impairment caused by the breakthroughs in
gasotransmitters as
therapeutics. However, the unstable nature and poor target specificity of gas donors limit the full efficacy of drugs. In this regard,
biomaterials that possess excellent biocompatibility and porosity are ideal
drug carriers to deliver the gas transmitters in a tunable manner for therapeutic angiogenesis. This review article provides a comprehensive discussion of
biomaterial-based
gasotransmitter delivery approaches for therapeutic angiogenesis. The critical role of
gasotransmitters in modulating angiogenesis during tissue repair as well as their challenges and future directions are demonstrated.