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Aptamers have been widely researched and applied in nanomedicine due to their programmable, activatable, and switchable properties. However, there are few reviews on aptamer-controlled stimuli-responsive drug delivery. This article highlights the mechanisms and advantages of aptamers in the construction of stimuli-responsive drug delivery systems. We summarize the assembly/reconfiguration mechanisms of aptamers in controlled release systems. The assembly and drug release strategies of drug delivery systems are illustrated. Specifically, we focus on the binding mechanisms to the target and the factors that induce/inhibit the binding to the stimuli, such as strand, pH, light, and temperature. The applications of aptamer-based stimuli-responsive drug release are elaborated. The challenges are discussed, and the future directions are proposed.
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http://dx.doi.org/10.1016/j.ijbiomac.2024.135353 | DOI Listing |
Adv Healthc Mater
September 2025
Smart Polymeric Biomaterials Research Group, Campus Group T, KU Leuven, Andreas Vesaliusstraat 13, Leuven, 3000, Belgium.
The lower gastrointestinal (GI) tract is affected by a range of diseases, including colorectal cancer and inflammatory bowel disease, among others. Effective treatment of these conditions requires drug delivery systems (DDSs) capable of precise targeting. While pH- and enzyme-sensitive DDSs are the most used, they often suffer from premature drug release and target specificity, limiting their efficacy.
View Article and Find Full Text PDFInt J Biol Macromol
September 2025
Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai, 400019, India. Electronic address:
Polysaccharide copolymers Conjuates have surfaced as a versatile foundation in the development of advanced smart drug delivery systems, owing to their inherent biocompatibility, biodegradability, and capacity for chemical modification. This review brings into focus the recent advances in co-polymeric drug delivery systems based on naturally occurring polysaccharides like chitosan, alginate, dextran, hyaluronic acid, pullulan, guar gum, xanthan gum, agarose, gellan gum, and starch. Their structural malleability and functionalization capabilities are emphasized to engineer therapeutic payload stability, bioavailability, and controlled release.
View Article and Find Full Text PDFBioorg Med Chem Lett
September 2025
Department of Chemistry, Taras Shevchenko National University of Kyiv, Kyiv 01601, Ukraine. Electronic address:
Phospholipid-derived nanocarriers represent a versatile and chemically customizable class of drug delivery systems that self-assemble into bilayered vesicles due to their intrinsic amphiphilicity. These systems can encapsulate both hydrophilic and hydrophobic drugs through non-covalent interactions and manipulation of lipid phase behavior. This review examines the molecular and supramolecular principles underlying the formation, stability, and functional performance of key phospholipid-based nanocarriers-including liposomes, transferosomes, ethosomes, invasomes, phytosomes, pharmacosomes, and virosomes.
View Article and Find Full Text PDFRSC Appl Polym
August 2025
Department of Applied Physical Sciences, University of North Carolina Chapel Hill NC 27514 USA
Stimuli-responsive hydrogels have gained significant attention in wound care due to their ability to adapt to dynamic physiological conditions, making them promising candidates for facilitating chronic wound healing. These hydrogels can respond to both internal and external environmental stimuli such as temperature, pH, reactive oxygen species (ROS), glucose levels, MMP, mechanical forces, magnetism, and ultrasound, enabling precise, on-demand therapeutic interventions through controlled drug release. This responsiveness is governed by reversible changes in their polymer network structure caused by interactions with external stimuli.
View Article and Find Full Text PDFFront Bioeng Biotechnol
August 2025
Department of Liver Surgery, Liver Transplantation Center, West China Hospital of Sichuan University, Chengdu, China.
Hepatocellular carcinoma (HCC) represents a major global health burden due to its high recurrence and mortality rates. For patients with advanced HCC and compromised liver function, Pharmacotherapy has become the primary approach due to the limited efficacy of conventional treatments (e.g.
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