Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Drug Delivery: Miscellaneous Routes01:22

Drug Delivery: Miscellaneous Routes

553
Drug delivery methods like oral inhalation, nasal sprays, transdermal patches, eye drops, intravitreal injection,  and rectal administration provide localized effects with reduced toxicity.
Oral inhalation and nasal sprays swiftly transfer drugs across the respiratory epithelium's mucosal layer. Inhaled glucocorticoids and bronchodilators directly target lung conditions such as asthma, while fluticasone nasal spray mitigates allergic rhinitis.
Transdermal patches transport drugs...
553
Drug Delivery: Overview01:16

Drug Delivery: Overview

488
The selection of a drug's delivery route depends upon its physicochemical properties, including lipid or water solubility and ionization, as well as the therapeutic requirement, such as immediate or sustained effect. These routes can be divided into three primary categories: enteral, parenteral, and topical.
Enteral delivery involves administering drugs directly through swallowing, sublingual placement, or buccal application. Orally administered drugs predominantly navigate the...
488
Drug Delivery: Parenteral Route01:29

Drug Delivery: Parenteral Route

1.0K
The parenteral route is a critical method of drug administration. It delivers compounds directly into the systemic circulation and bypasses the gastrointestinal tract. This approach is particularly advantageous for drugs that exhibit poor absorption or instability when administered orally.
There are three primary parenteral routes: intravenous (IV), intramuscular (IM), and subcutaneous (SC). The IV route introduces the drug directly into the bloodstream, ensuring immediate action. The IM route...
1.0K
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention01:05

Bioavailability Enhancement: Drug Stability Enhancement and GI Retention

26
Body:Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
26
Routes of Drug Administration: Parenteral01:25

Routes of Drug Administration: Parenteral

2.4K
The administration of drugs via parenteral routes allows for direct drug introduction into the systemic circulation, resulting in high bioavailability because the medication bypasses the harsh conditions of the gastrointestinal tract and hepatic metabolism.
The intravenous route (IV) of drug administration can be further categorized into two types. The bolus injection administers the entire dose rapidly, while an intravenous infusion slowly delivers smaller doses steadily.
The IV route is often...
2.4K
Drug Delivery: Enteral Route01:18

Drug Delivery: Enteral Route

922
The enteral drug administration involves three primary routes: oral, sublingual, and buccal. Oral ingestion is the most prevalent, safe, economical, and convenient method for drug administration. However, it has certain drawbacks, including limited absorption due to the drug's low water solubility or poor membrane permeability, possible emesis from GI mucosa irritation, destruction of drugs by digestive enzymes or low gastric pH, and irregular absorption along with food or other drugs.
922

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Correction to: Serum and Urinary Metabolomics Reflect the Early Stages of De Novo Metabolic Syndrome After Liver Transplant: A 2-Center Longitudinal Study.

Clinical and translational gastroenterology·2026
Same author

Balloon-expandable stenting of extrinsic outflow graft obstruction in an axial-flow left ventricular assist device via a transcarotid approach.

JTCVS structural and endovascular·2026
Same author

Towards targeted drugs and next generation of nanomedicines.

Beilstein journal of nanotechnology·2026
Same author

Serum and Urinary Metabolomics Reflect the Early Stages of De Novo Metabolic Syndrome After Liver Transplant: A 2-Center Longitudinal Study.

Clinical and translational gastroenterology·2026
Same author

The multi-omic basis for hepatic encephalopathy recurrence: Analysis of the THEMATIC trial.

JHEP reports : innovation in hepatology·2026
Same author

Perspectives of early mobility in the cardiac surgery intensive care unit: an interpretive description study.

Clinical rehabilitation·2025
Same journal

Spin-crossover in metal complex-promoted homogenous catalysis.

Frontiers in chemistry·2026
Same journal

Face reverse degree topological analysis of TP-COFs, existence of isentropic COFs and spectral characteristics.

Frontiers in chemistry·2026
Same journal

An integrated annotation strategy for the phytochemical characterization of Xie-Bai-San decoction based on UPLC-Q Exactive Orbitrap HRMS, multi-database screening, and feature-based molecular networking.

Frontiers in chemistry·2026
Same journal

Core-shell structured nanomaterials in dual-modal magnetic resonance imaging guided antitumor effect via combined treatment.

Frontiers in chemistry·2026
Same journal

Photo-responsive nanozymes: from photocatalytic mechanisms to precision therapy.

Frontiers in chemistry·2026
Same journal

From theoretical energy to practical utilization: interfacial stability, transport kinetics, and cell-level design in high-energy lithium-metal batteries.

Frontiers in chemistry·2026
See all related articles

Related Experiment Video

Updated: Oct 24, 2025

Injectable Supramolecular Polymer-Nanoparticle Hydrogels for Cell and Drug Delivery Applications
09:39

Injectable Supramolecular Polymer-Nanoparticle Hydrogels for Cell and Drug Delivery Applications

Published on: February 7, 2021

8.3K

Spiropyran-Based Drug Delivery Systems.

Andrew Fagan1, Michał Bartkowski1, Silvia Giordani1

  • 1School of Chemical Sciences, Dublin City University (DCU), Dublin, Ireland.

Frontiers in Chemistry
|August 16, 2021
PubMed
Summary
This summary is machine-generated.

Spiropyrans, photochromic molecular switches, offer advantages for drug delivery systems (DDSs) by encapsulating drugs and responding to stimuli. This review explores their potential and challenges in DDS applications.

Keywords:
drug deliverymerocyaninemolecular switchnanocarriernanomedicinesmart releasespiropyran

More Related Videos

Manufacture and Drug Delivery Applications of Silk Nanoparticles
09:03

Manufacture and Drug Delivery Applications of Silk Nanoparticles

Published on: October 8, 2016

16.1K
Uptake of New Lipid-coated Nanoparticles Containing Falcarindiol by Human Mesenchymal Stem Cells
09:34

Uptake of New Lipid-coated Nanoparticles Containing Falcarindiol by Human Mesenchymal Stem Cells

Published on: February 9, 2019

9.1K

Related Experiment Videos

Last Updated: Oct 24, 2025

Injectable Supramolecular Polymer-Nanoparticle Hydrogels for Cell and Drug Delivery Applications
09:39

Injectable Supramolecular Polymer-Nanoparticle Hydrogels for Cell and Drug Delivery Applications

Published on: February 7, 2021

8.3K
Manufacture and Drug Delivery Applications of Silk Nanoparticles
09:03

Manufacture and Drug Delivery Applications of Silk Nanoparticles

Published on: October 8, 2016

16.1K
Uptake of New Lipid-coated Nanoparticles Containing Falcarindiol by Human Mesenchymal Stem Cells
09:34

Uptake of New Lipid-coated Nanoparticles Containing Falcarindiol by Human Mesenchymal Stem Cells

Published on: February 9, 2019

9.1K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Pharmaceutical Sciences

Background:

  • Nanocarriers are increasingly vital in drug delivery, surpassing traditional methods by improving solubility and reducing side effects.
  • Functionalization of nanocarriers with imaging and targeting agents enhances their therapeutic capabilities.
  • Spiropyrans, photochromic molecular switches, are emerging as promising candidates for nanocarrier applications due to their responsiveness and biocompatibility.

Purpose of the Study:

  • To review the advancements in spiropyran-based drug delivery systems (DDSs).
  • To evaluate the advantages and disadvantages of using spiropyrans in drug delivery.
  • To present an outline of current spiropyran-based DDSs.

Main Methods:

  • Literature review of spiropyran applications in drug delivery.
  • Analysis of spiropyran properties relevant to nanocarrier functionality.
  • Assessment of biocompatibility and responsiveness of spiropyran-based systems.

Main Results:

  • Spiropyrans demonstrate multi-responsiveness to various stimuli, enabling controlled drug release.
  • Their intrinsic biocompatibility supports their use in biological systems.
  • Spiropyran-based DDSs offer enhanced functionality compared to conventional delivery methods.

Conclusions:

  • Spiropyrans represent a promising class of materials for developing advanced drug delivery systems.
  • Further research is needed to fully elucidate the benefits and overcome the limitations of spiropyran-based DDSs.
  • The unique properties of spiropyrans position them as valuable tools in the future of targeted and stimuli-responsive drug delivery.