Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Dendritic fibrous nanosilica: all-in-one nanomaterial for energy, environment and health

Dendritic fibrous nanosilica (DFNS), also known as KCC-1, has a unique fibrous morphology and a high surface area with improved accessibility to the internal surface, tunable pore size and volume, controllable particle size, which made it useful in the fields of energy, environment, and health.
CREDIT
Ayan Maity, Vivek Polshettiwar
Dendritic fibrous nanosilica (DFNS), also known as KCC-1, has a unique fibrous morphology and a high surface area with improved accessibility to the internal surface, tunable pore size and volume, controllable particle size, which made it useful in the fields of energy, environment, and health. CREDIT Ayan Maity, Vivek Polshettiwar

Abstract:
Dendritic fibrous nanosilica (DFNS) attracted a great deal of attention in a large number of scientific disciplines such as catalysis, solar energy harvesting (photocatalysis, solar cells, etc.), energy storage, self-cleaning antireflective coatings, surface plasmon resonance (SPR)-based ultra-sensitive sensors, CO2 capture, and biomedical applications (drug delivery, protein and gene delivery, bioimaging, photothermal ablation, Ayurvedic and radiotherapeutics drug delivery, etc.). As discussed in this review, the unique fibrous morphology of the DFNS family of materials bestows them with several important properties that were brilliantly exploited for use in a range of applications. The fibers of DFNS were functionalized with a range of organic groups, ionic liquids, organometallic complexes, polymers, peptides, enzymes, DNA, genes, etc. They were also loaded with metal nanoparticles, bi-metallic nanoparticles, even with single atoms of metals, quantum dots, and metal oxides and hydroxides. They were also used as hard templates for the synthesis of high surface area carbon with fibrous morphology. DFNS-based zeolites were also synthesized with unique activities.

Dendritic fibrous nanosilica: all-in-one nanomaterial for energy, environment and health

Mumbai, India | Posted on November 4th, 2017

DFNS provided a means to load large amount of catalytic active sites with exceptionally high accessibility compared to conventional mesoporous silica materials. Additionally, due to the radially oriented pores (channels), the size of which increased from the center of the sphere to its outer surface, reactants were able to easily access active sites within the channels, increasing their interaction with catalytic sites. This led to a multifold increase in their catalytic activity.

DFNS was cleverly used to develop novel photocatalysts by coating with g-C3N4 and TiO2. The fibrous morphology of DFNS not only facilitated mass transfer and improved accessibility but also facilitated the formation of a uniform conformal coating and a high loading of semiconductors and guest molecules. Notably, due to the fibrous structure of the material, the light harvesting properties of the catalyst were enhanced due multiple scattering effects and the reflection of a large amount of incident light. DFNS was also used to improve the performance of dye sensitized solar cells (DSSCs). In addition to energy harvesting, DFNS-coated carbon spheres were also used for energy storage using supercapacitors.

Functionalized DFNS, such as DFNS-amines and DFNS-oxynitrides, were successfully used to develop efficient CO2 sorbents, which could contribute in tackling the potentially dangerous climate change issue. Functionalized DFNS was also used to remove pollutants such as toxic metal ions, phosphorus, polyaromatic hydrocarbons, etc. from water bodies, which is a serious environmental concern.

DFFNS was efficiently used to deliver various anti-cancer drugs, and even the delivery of the Ayurvedic drug curcumin, DNA, genes and antimicrobial enzymes was achieved. In addition, a number of auxiliary functions were integrated into DFNS, such as stimuli responsiveness (light to thermal), fluorescence, radioactivity, anti-reflectance, superhydrophobicity, etc. This allows for their application in photothermal ablation therapy, real-time bioimaging, self-cleaning coatings, etc.

The sensing and quantification of pollutants was achieved using DFNS-based surface plasmon resonance (SPR). It was also used for an ultrasensitive enzyme-linked immunosorbent assay (ELISA+) with a 2000-fold enhancement in detection sensitivity.

DFNS seems like All-in-one-Nanomaterial and have huge potential for future development. Although DFNS has been gifted with excellent textural, physical and chemical properties and shows exceptional results in various applications, the evolution of DFNS from fundamental research studies in the laboratory to being used in industry will depend on collaborations between academic researchers and industry.

Thus, remarkable advances in the synthesis and applications of DFNS were achieved, and DFNS seems to have demonstrated great potential as a superior alternative to conventional silica materials such as Stöber silica, MSN, MCM-41, and SBA-15, among others. The low cost, high activity and pronounced stability of numerous dendritic fibrous nanosilica-based materials support our argument that this class of material will find practical use for a range of applications, from catalysis, to gas capture, from energy harvesting and storage to drug delivery, from analytical chemistry to environmental remediation and more.

####

For more information, please click here

Contacts:
Prof. Vivek Polshettiwar

91-845-288-6556

Copyright © Tata Institute of Fundamental Research

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

RELATED JOURNAL ARTICLE:

Related News Press

News and information

Scientists synthesize nanoparticle-antioxidants to treat strokes and spinal cord injuries January 16th, 2018

New catalyst for hydrogen production is a step toward clean fuel: Carbon-based nanocomposite with embedded metal ions yields impressive performance as catalyst for electrolysis of water to generate hydrogen January 16th, 2018

'Gyroscope' molecules form crystal that's both solid and full of motion: New type of molecular machine designed by UCLA researchers could have wide-ranging applications in technology and science January 16th, 2018

The nanoscopic structure that locks up our genes January 16th, 2018

New exotic phenomena seen in photonic crystals: Researchers observe, for the first time, topological effects unique to an “open” system January 12th, 2018

Chemistry

'Gyroscope' molecules form crystal that's both solid and full of motion: New type of molecular machine designed by UCLA researchers could have wide-ranging applications in technology and science January 16th, 2018

Paving the way for a non-electric battery to store solar energy: UMass Amherst scientists say a polymer chain organized like a string of Christmas lights assists energy storage December 22nd, 2017

Zeolites

Studying Argon Gas Trapped in Two-Dimensional Array of Tiny "Cages": Understanding how individual atoms enter and exit the nanoporous frameworks could help scientists design new materials for gas separation and nuclear waste remediation July 17th, 2017

Scientists change properties of zeolites to improve hemodialysis July 29th, 2016

Synthesized microporous 3-D graphene-like carbons: IBS research team create carbon synthesis using zeolites as a template July 1st, 2016

Nanozeolites Eliminate Medications from Pharmaceutical Plants Wastewater September 12th, 2015

Possible Futures

Scientists synthesize nanoparticle-antioxidants to treat strokes and spinal cord injuries January 16th, 2018

New catalyst for hydrogen production is a step toward clean fuel: Carbon-based nanocomposite with embedded metal ions yields impressive performance as catalyst for electrolysis of water to generate hydrogen January 16th, 2018

'Gyroscope' molecules form crystal that's both solid and full of motion: New type of molecular machine designed by UCLA researchers could have wide-ranging applications in technology and science January 16th, 2018

The nanoscopic structure that locks up our genes January 16th, 2018

Nanomedicine

Scientists synthesize nanoparticle-antioxidants to treat strokes and spinal cord injuries January 16th, 2018

The nanoscopic structure that locks up our genes January 16th, 2018

'Decorated' stem cells could offer targeted heart repair January 11th, 2018

Rice University lab modifies nanoscale virus to deliver peptide drugs to cells, tissues January 8th, 2018

Sensors

NRL improves optical efficiency in nanophotonic devices January 4th, 2018

'Quantum material' has shark-like ability to detect small electrical signals December 20th, 2017

Record high photoconductivity for new metal-organic framework material December 15th, 2017

Leti Will Demonstrate First 3D Anti-Crash Solution for Embedding in Drones: Fitted on a Mass-Market Microcontroller, 360Fusion Software Technology Detects any Dynamic Obstacle and Helps Guide Drones Away from Collisions December 15th, 2017

Discoveries

Scientists synthesize nanoparticle-antioxidants to treat strokes and spinal cord injuries January 16th, 2018

New catalyst for hydrogen production is a step toward clean fuel: Carbon-based nanocomposite with embedded metal ions yields impressive performance as catalyst for electrolysis of water to generate hydrogen January 16th, 2018

'Gyroscope' molecules form crystal that's both solid and full of motion: New type of molecular machine designed by UCLA researchers could have wide-ranging applications in technology and science January 16th, 2018

The nanoscopic structure that locks up our genes January 16th, 2018

Announcements

Scientists synthesize nanoparticle-antioxidants to treat strokes and spinal cord injuries January 16th, 2018

New catalyst for hydrogen production is a step toward clean fuel: Carbon-based nanocomposite with embedded metal ions yields impressive performance as catalyst for electrolysis of water to generate hydrogen January 16th, 2018

'Gyroscope' molecules form crystal that's both solid and full of motion: New type of molecular machine designed by UCLA researchers could have wide-ranging applications in technology and science January 16th, 2018

The nanoscopic structure that locks up our genes January 16th, 2018

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

Scientists synthesize nanoparticle-antioxidants to treat strokes and spinal cord injuries January 16th, 2018

New catalyst for hydrogen production is a step toward clean fuel: Carbon-based nanocomposite with embedded metal ions yields impressive performance as catalyst for electrolysis of water to generate hydrogen January 16th, 2018

'Gyroscope' molecules form crystal that's both solid and full of motion: New type of molecular machine designed by UCLA researchers could have wide-ranging applications in technology and science January 16th, 2018

The nanoscopic structure that locks up our genes January 16th, 2018

Environment

Rice U.'s one-step catalyst turns nitrates into water and air: NSF-funded NEWT Center aims for catalytic converter for nitrate-polluted water January 5th, 2018

'Quantum material' has shark-like ability to detect small electrical signals December 20th, 2017

Silicon Sense first to achieve EPA approval to import detonation nanodiamonds to US: Nanodiamond additives can significantly improve the performance of metal finishing, polymer thermal and mechanical compounds, polymer coatings, CMP polishing and a range of other applications November 29th, 2017

Report highlights opportunities and risks associated with synthetic biology and bioengineering November 22nd, 2017

Energy

New catalyst for hydrogen production is a step toward clean fuel: Carbon-based nanocomposite with embedded metal ions yields impressive performance as catalyst for electrolysis of water to generate hydrogen January 16th, 2018

Rice U.'s one-step catalyst turns nitrates into water and air: NSF-funded NEWT Center aims for catalytic converter for nitrate-polluted water January 5th, 2018

Tweaking quantum dots powers-up double-pane solar windows: Engineered quantum dots could bring down the cost of solar electricity January 2nd, 2018

Paving the way for a non-electric battery to store solar energy: UMass Amherst scientists say a polymer chain organized like a string of Christmas lights assists energy storage December 22nd, 2017

Battery Technology/Capacitors/Generators/Piezoelectrics/Thermoelectrics/Energy storage

Novel MOF shell-derived surface modification of Li-rich layered oxide cathode December 29th, 2017

Paving the way for a non-electric battery to store solar energy: UMass Amherst scientists say a polymer chain organized like a string of Christmas lights assists energy storage December 22nd, 2017

Sandia researchers make solid ground toward better lithium-ion battery interfaces: Reducing the traffic jam in batteries December 13th, 2017

Device makes power conversion more efficient: New design could dramatically cut energy waste in electric vehicles, data centers, and the power grid December 8th, 2017

Nanobiotechnology

Scientists synthesize nanoparticle-antioxidants to treat strokes and spinal cord injuries January 16th, 2018

The nanoscopic structure that locks up our genes January 16th, 2018

'Decorated' stem cells could offer targeted heart repair January 11th, 2018

Rice University lab modifies nanoscale virus to deliver peptide drugs to cells, tissues January 8th, 2018

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project