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The primary applications of gradient-responsive drug delivery systems are usually referenced as pH or redox gradients, as opposed to the gradients of other hormones or factors found naturally in the body. Aside from pH and redox gradients, there are no published works on gradient-responsive drug delivery systems.
Ultrasound-triggered drug delivery using stimuli-responsive hydrogels refers to the process of using ultrasound energy for inducing drug release from hydrogels that are sensitive to acoustic stimuli. This method of approach is one of many stimuli-responsive drug delivery-based systems that has gained traction in recent years due to its ...
An application of stretch-triggered drug delivery systems is the delivery of chemotherapy triggered by esophageal stent expansion. [4] Also, the incorporation of several drugs into stretch-triggered autonomous drug release systems is a possibility, allowing drugs to be released by the same or different signals. [ 1 ]
Gated drug delivery systems are a method of controlled drug release that center around the use of physical molecules that cover the pores of drug carriers until triggered for removal by an external stimulus. Gated drug delivery systems are a recent innovation in the field of drug delivery and pose as a promising candidate for future drug ...
Self-microemulsifying drug delivery system; Shampoo; Silicone gel sheeting; Sink condition; Small molecule drug conjugate; Smoking; Softgel; Solution (chemistry) Sonophoresis; Stimuli-responsive drug delivery systems; Stretch-triggered drug delivery; Suppository; Suspension (chemistry) Modified-release dosage; Syrette; Syringe
pH-triggered drug delivery systems are able to control the pharmacokinetics and the biodistribution of the drugs enclosed within the drug carrier and have a controlled release. Many “smart” pH-responsive drug delivery systems have not made it to clinical trials. [27] However, there still are many challenges with this treatment method. [10]
The conventional drug delivery system is the absorption of the drug across a biological membrane, whereas the targeted release system releases the drug in a dosage form. The advantages to the targeted release system is the reduction in the frequency of the dosages taken by the patient, having a more uniform effect of the drug, reduction of drug ...
A 2013 review found the cost of developing a delivery system was only 10% of the cost of developing a new pharmaceutical. [16] A more recent study found the median cost of bringing a new drug to market was $985 million in 2020, but did not look at the cost of developing drug delivery systems. [17]