A facile route to synthesize silver nanoparticles in polyelectrolyte capsules

Sundaramurthy, Anandhakumar; Raichur, Ashok M.

doi:10.1016/j.colsurfb.2011.01.029

Cited by 18 publications

(24 citation statements)

References 25 publications

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“…The hydrophobic molecules could be loaded into multilayer capsules by changing the state of the capsules from open to closed via a polarity change [73]. Alternatively, water soluble, positively charged substances were encapsulated into hollow capsules of weak PE by spontaneous as well as charge-controlled mechanisms [70,74]. The net negative charge caused by either complex formation or preloaded PE molecules in the interior of the capsule is the driving force for the encapsulation processes [75].…”

Section: Encapsulationmentioning

confidence: 99%

Multilayer capsules made of weak polyelectrolytes: a review on the preparation, functionalization and applications in drug delivery

Sharma¹,

Sundaramurthy²

2020

Beilstein J. Nanotechnol.

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Multilayer capsules have been of great interest for scientists and medical communities in multidisciplinary fields of research, such as drug delivery, sensing, biomedicine, theranostics and gene therapy. The most essential attributes of a drug delivery system are considered to be multi-functionality and stimuli responsiveness against a range of external and internal stimuli. Apart from the highly explored strong polyelectrolytes, weak polyelectrolytes offer great versatility with a highly controllable architecture, unique stimuli responsiveness and easy tuning of the properties for intracellular delivery of cargo. This review describes the progress in the preparation, functionalization and applications of capsules made of weak polyelectrolytes or their combination with biopolymers. The selection of a sacrificial template for capsule formation, the driving forces involved, the encapsulation of a variety of cargo and release based on different internal and external stimuli have also been addressed. We describe recent perspectives and obstacles of weak polyelectrolyte/biopolymer systems in applications such as therapeutics, biosensing, bioimaging, bioreactors, vaccination, tissue engineering and gene delivery. This review gives an emerging outlook on the advantages and unique responsiveness of weak polyelectrolyte based systems that can enable their widespread use in potential applications.

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Section: Encapsulationmentioning

confidence: 99%

Multilayer capsules made of weak polyelectrolytes: a review on the preparation, functionalization and applications in drug delivery

Sharma¹,

Sundaramurthy²

2020

Beilstein J. Nanotechnol.

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“…Biomedically, thinfilm coating on medical devices can improve biocompatibility, reduce immunological response, and enhance targeted drug delivery [294]. The LbL self-assembly technique has also been applied in the synthesis of thin-film microcapsules that disintegrate on the target site hence improving drug or DNA delivery to their active site [298,299,[303][304][305][306][307]. Also, LbL thin films have been applied to assemble semiconductor catalysts (especially TiO 2 ) and applied in the degradation of organic pollutants for environmental remediation [12,293,308].…”

Section: Applications Of Lbl Thin Filmsmentioning

confidence: 99%

Recent Developments in Environmental Photocatalytic Degradation of Organic Pollutants: The Case of Titanium Dioxide Nanoparticles—A Review

Mahlambi

Ngila

Mamba

2015

Journal of Nanomaterials

209

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The presence of both organic and inorganic pollutants in water due to industrial, agricultural, and domestic activities has led to the global need for the development of new, improved, and advanced but effective technologies to effectively address the challenges of water quality. It is therefore necessary to develop a technology which would completely remove contaminants from contaminated waters. TiO2(titania) nanocatalysts have a proven potential to treat “difficult-to-remove” contaminants and thus are expected to play an important role in the remediation of environmental and pollution challenges. Titania nanoparticles are intended to be both supplementary and complementary to the present water-treatment technologies through the destruction or transformation of hazardous chemical wastes to innocuous end-products, that is, CO2and H2O. This paper therefore explores and summarizes recent efforts in the area of titania nanoparticle synthesis, modifications, and application of titania nanoparticles for water treatment purposes.

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“…The fabrication of silver NP modified microcapsules has been reported earlier [20]. The same procedure was used here to produce nanocapsules and parameters such as centrifugation speed, time etc., were optimized to prevent aggregation during LbL assembly.…”

Section: Fabrication Of Hybrid Nanocapsulesmentioning

confidence: 97%

“…Here we extend our polyol route of synthesizing Ag particles to nanocapsules and demonstrate its applicability as an externally triggerable drug delivery system [20]. In this study we provide a proof-of-concept towards designing the "remote-rupturing nanocapsules" for release of active substance through external ultrasonic treatment.…”

Section: Introductionmentioning

confidence: 98%

Silver nanoparticles modified nanocapsules for ultrasonically activated drug delivery

Sundaramurthy

Mahalakshmi

Raichur

2012

Materials Science and Engineering: C

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A facile route to synthesize silver nanoparticles in polyelectrolyte capsules

Cited by 18 publications

References 25 publications

Multilayer capsules made of weak polyelectrolytes: a review on the preparation, functionalization and applications in drug delivery

Multilayer capsules made of weak polyelectrolytes: a review on the preparation, functionalization and applications in drug delivery

Recent Developments in Environmental Photocatalytic Degradation of Organic Pollutants: The Case of Titanium Dioxide Nanoparticles—A Review

Silver nanoparticles modified nanocapsules for ultrasonically activated drug delivery

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