Boronate-crosslinked polysaccharide conjugates for pH-responsive and targeted drug delivery

2019 ◽  
Vol 55 (8) ◽  
pp. 1164-1167 ◽  
Author(s):  
Yu-Hui Zhang ◽  
Ying-Ming Zhang ◽  
Jie Yu ◽  
Jie Wang ◽  
Yu Liu
Keyword(s):  
Drug Delivery ◽  
Hyaluronic Acid ◽  
Drug Release ◽  
Targeted Drug Delivery ◽  
Ph Responsive ◽  
Anticancer Effect ◽  
Targeted Drug

A polysaccharide nanoconjugate was fabricated from N-(2-aminoethyl)-gluconamide-grafted hyaluronic acid and bortezomib, displaying pH-responsive targeted drug release and higher anticancer effect.

Programmable shape-morphing microrobots for localized cancer cells treatment

2021 ◽  
Author(s):  
Chen Xin ◽  
Dongdong Jin ◽  
Yanlei Hu ◽  
Liang Yang ◽  
Rui Li ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Drug Release ◽  
Targeted Drug Delivery ◽  
Biological Applications ◽  
Proof Of Concept ◽  
Ph Responsive ◽  
Solution Ph ◽  
Shape Morphing ◽  
On Demand ◽  
Targeted Drug

Abstract Microrobots have attracted great attentions due to their wide applications in microobjects manipulation and targeted drug delivery. To realize more complex micro/nano cargos manipulation (e.g., encapsulation and release) in biological applications, endowing microrobots with shapes adaptability with the environment is highly desirable. Here, designable shape-morphing microrobots (SMMRs) have been developed by programmatically encoding different expansion rate in a pH-responsive hydrogel. Combined with magnetic propelling, the shape-morphing microcrab (SMMC) is capable of performing targeted microparticle delivery, including gripping, transporting, and releasing through claws morphing. As a proof-of-concept demonstration, the shape-morphing microfish (SMMF) is designed to encapsulate drug (doxorubicin (DOX)) by closing mouth in phosphate buffer saline (PBS, pH~7.4) and release them by opening mouth in slightly acid solution (pH<7), which realize localized Hela cells treatment in an artificial vascular network. These SMMRs with powerful shape morphing capabilities and remote motion controllability provide new platforms for complex microcargos operation and on-demand drug release.

Hyaluronic acid-conjugated apoferritin nanocages for lung cancer targeted drug delivery

2015 ◽  
Vol 3 (10) ◽  
pp. 1386-1394 ◽  
Author(s):  
Yanan Luo ◽  
Xuenv Wang ◽  
Dan Du ◽  
Yuehe Lin
Keyword(s):  
Lung Cancer ◽  
Drug Delivery ◽  
Hyaluronic Acid ◽  
Controlled Release ◽  
Delivery System ◽  
Targeted Drug Delivery ◽  
Ph Responsive ◽  
Protein Cage ◽  
Targeted Drug

In this paper, we proposed a naturally derived protein cage based pH-responsive delivery system for intracellular prodrug controlled release.

Recent Advances in the Development of Polymeric Nanocarrier Formulations for the Treatment of Colon Cancer

2019 ◽  
Vol 9 (1) ◽  
pp. 2-14
Author(s):  
Sahil Kumar ◽  
Bandna Sharma ◽  
Kiran Thakur ◽  
Tilak R. Bhardwaj ◽  
Deo N. Prasad ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Colon Cancer ◽  
Hyaluronic Acid ◽  
Targeted Drug Delivery ◽  
Drug Delivery Systems ◽  
Delivery Systems ◽  
Near Ir ◽  
Targeted Drug ◽  
Poly Ethylene ◽  
Novel Drug

Background: Many efforts have been explored in the last decade to treat colon cancer but nanoparticulate drug delivery systems are making a vital contribution in the improvement of drug delivery to colon cancer cells. Objective: In this review, we attempt to highlight recent advancements in the development of novel drug delivery systems of nanoparticles for the targeted drug delivery to colon. Polymers like Epithelial Cell Adhesion Molecule (EpCAM) aptamer chitosan, Hyaluronic Acid (HA), Chitosan (CS)– Carboxymethyl Starch (CMS), silsesquioxane capped mesoporous silica, Near IR (NIR) fluorescent Human Serum Albumin (HAS), poly(ethylene glycol)-conjugated hyaluronic acid etc. have been discussed by employing various anticancer drugs like doxorubicin, oxaliplatin, paclitaxel, 5-fluorouracil etc. Conclusion: These novel drug delivery systems have been determined to be more efficacious in terms of stability, sustained and targeted drug delivery, therapeutic efficacy, improved bioavailability and enhanced anticancer activity.

scholarly journals Folic Acid-Terminated Poly(2-Diethyl Amino Ethyl Methacrylate) Brush-Gated Magnetic Mesoporous Nanoparticles as a Smart Drug Delivery System

Polymers ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 59
Author(s):  
Abeer M. Beagan ◽  
Ahlam A. Alghamdi ◽  
Shatha S. Lahmadi ◽  
Majed A. Halwani ◽  
Mohammed S. Almeataq ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Drug Resistance ◽  
Folic Acid ◽  
Drug Delivery System ◽  
Targeted Drug Delivery ◽  
Ph Responsive ◽  
Ethyl Methacrylate ◽  
Mesoporous Nanoparticles ◽  
Targeted Drug ◽  
Mcf 7

Currently, chemotherapy is an important method for the treatment of various cancers. Nevertheless, it has many limitations, such as poor tumour selectivity and multi-drug resistance. It is necessary to improve this treatment method by incorporating a targeted drug delivery system aimed to reduce side effects and drug resistance. The present work aims to develop pH-sensitive nanocarriers containing magnetic mesoporous silica nanoparticles (MMSNs) coated with pH-responsive polymers for tumour-targeted drug delivery via the folate receptor. 2-Diethyl amino ethyl methacrylate (DEAEMA) was successfully grafted on MMSNs via surface initiated ARGET atom transfer radical polymerization (ATRP), with an average particle size of 180 nm. The end groups of poly (2-(diethylamino)ethyl methacrylate) (PDEAEMA) brushes were converted to amines, followed by a covalent bond with folic acid (FA) as a targeting agent. FA conjugated to the nanoparticle surface was confirmed by X-ray photoelectron spectroscopy (XPS). pH-Responsive behavior of PDEAEMA brushes was investigated by Dynamic Light Scattering (DLS). The nanoparticles average diameters ranged from ca. 350 nm in basic media to ca. 650 in acidic solution. Multifunctional pH-sensitive magnetic mesoporous nanoparticles were loaded with an anti-cancer drug (Doxorubicin) to investigate their capacity and long-circulation time. In a cumulative release pattern, doxorubicin (DOX) release from nano-systems was ca. 20% when the particle exposed to acidic media, compared to ca. 5% in basic media. The nano-systems have excellent biocompatibility and are minimally toxic when exposed to MCF-7, and -MCF-7 ADR cells.

Hyaluronic Acid Derived Hypoxia-Sensitive Nanocarrier for Tumor Targeted Drug Delivery

2021 ◽  
Author(s):  
Trong-Nghia Le ◽  
Chin-Jung Lin ◽  
Yen Chen Shen ◽  
Kuan-Yu Lin ◽  
Cheng-Kang Lee ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Hyaluronic Acid ◽  
Targeted Drug Delivery ◽  
Targeted Drug

scholarly journals A Composite of Hyaluronic Acid-Modified Graphene Oxide and Iron Oxide Nanoparticles for Targeted Drug Delivery and Magnetothermal Therapy

ACS Omega ◽  
2019 ◽  
Vol 4 (5) ◽  
pp. 9284-9293 ◽  
Author(s):  
Nilkamal Pramanik ◽  
Santhalakshmi Ranganathan ◽  
Sunaina Rao ◽  
Kaushik Suneet ◽  
Shilpee Jain ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Graphene Oxide ◽  
Hyaluronic Acid ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Targeted Drug Delivery ◽  
Oxide Nanoparticles ◽  
Modified Graphene Oxide ◽  
Targeted Drug ◽  
Modified Graphene
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