REVIEW ARTICLE Am. J. PharmTech Res. 2025; 15(01) ISSN: 2249-3387 Please cite this article as: Sireesha DS et al., An Analysis of Smart Hydrogels. American Journal of PharmTech Research 2025. An Analysis of Smart Hydrogels P. Nikitha 1 , T. Shivani 1 , R.Venkatesh 1 , D. Satya Sireesha 1* , T.Rama Rao 1 1.CMR College of Pharmacy, Kandlakoya, Medchal road, Hyderabad ABSTRACT As an emerging drug carrier, hydrogels have been widely used for tumour drug delivery. A hydrogel drug carrier can cause less severe side effects than systemic chemotherapy and can achieve sustained delivery of a drug at tumour sites. In addition, hydrogels have excellent biocompatibility and biodegradability and lower toxicity than nanoparticle carriers. Smart hydrogels can respond to stimuli in the environment (e.g., heat, pH, light, and ultrasound), enabling in situ gelation and controlled drug release, which greatly enhance the convenience and efficiency of drug delivery. Here, we summarize the different sizes of hydrogels used for cancer treatment and their related delivery routes, discuss the design strategies for stimuli-responsive hydrogels, and review the research concerning smart hydrogels reported in the past few years Keywords: Hydrogels, tumour drug delivery system, stimuli responsive materials, biocompatability and biodegradability. *Corresponding Author Email: devu.satyasireesha@cmrcp.ac.in Received 22 December 2024, Accepted 01 January 2025 s Journal home page: http://www.ajptr.com/