NDLI: In situ integration of graphene foam–titanium nitride based bio-scaffolds and microfluidic structures for soil nutrient sensors

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Lab on a Chip Vol -17

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Lab on a Chip Vol - 17 Issue - 2

Front cover

Inside front cover

Contents list

Controllable synthesis of functional nanoparticles by microfluidic platforms for biomedical applications – a review

An electrohydrodynamic technique for rapid mixing in stationary droplets on digital microfluidic platforms

Centrifugal micro-channel array droplet generation for highly parallel digital PCR

3D printed metal molds for hot embossing plastic microfluidic devices

Steering air bubbles with an add-on vacuum layer for biopolymer membrane biofabrication in PDMS microfluidics

Image processing and analysis system for development and use of free flow electrophoresis chips

Plasma free reversible and irreversible microfluidic bonding

In situ integration of graphene foam–titanium nitride based bio-scaffolds and microfluidic structures for soil nutrient sensors

Water-head-driven microfluidic oscillators for autonomous control of periodic flows and generation of aqueous two-phase system droplets

Xurography for microfluidics on a reactive solid

Slanted, asymmetric microfluidic lattices as size-selective sieves for continuous particle/cell sorting

Real-time observation of protein aggregates in pharmaceutical formulations using liquid cell electron microscopy

On-chip integration of droplet microfluidics and nanostructure-initiator mass spectrometry for enzyme screening

Development of a point-of-care diagnostic for influenza detection with antiviral treatment effectiveness indication

3D-templated, fully automated microfluidic input/output multiplexer for endocrine tissue culture and secretion sampling

Back cover

Lab on a Chip Vol - 17 Issue - 1

In situ integration of graphene foam–titanium nitride based bio-scaffolds and microfluidic structures for soil nutrient sensors

Content Provider	Royal Society of Chemistry (RSC)
Author	Dong, Liang Wang, Yifei Jiang, Huawei Castellano, Michael J. Ali, Azahar Sharma, Ashutosh Mahal, Navreet K. Mondal, Kunal
Copyright Year	2017
Abstract	It is challenging to integrate porous graphene foam (GF) and GF-based nanocomposites into microfluidic channels and even create microfluidic structures within these materials. This is because their irregular interior pore shape and geometry, rough exterior surface, and relatively large material thickness make it difficult to perform conventional photolithography and etching. This challenge has largely hindered the potential of using GF-based materials in microfluidics-based sensors. Here we present a simple approach to create well-defined flow-through channels within or across the GF-based materials, using a liquid-phase photopolymerization method. This method allows embedding of a nanocomposite-based scaffold of GF and titanium nitride nanofibers (GF–TiN NFs) into a channel structure, to realize flow-through microfluidic electrochemical sensors for detecting nitrate ions in agricultural soils. The unique GF–TiN nanocomposite provides high electrochemical reactivity, high electron transfer rate, improved loading capacity of receptor biomolecules, and large surface area, serving as an efficient electrochemical sensing interface with the help of immobilized specific enzyme molecules. The microfluidic sensor provides an ultralow limit of detection of 0.01 mg L−1, a wide dynamic range from 0.01 to 442 mg L−1, and a high sensitivity of 683.3 μA mg−1 L cm−2 for nitrate ions in real soil solution samples. The advantageous features of the GF–TiN nanocomposite, in conjunction with the in situ integration approach, will enable a promising microfluidic sensor platform to monitor soil ions for nutrient management towards sustainable agriculture.
Starting Page	274
Ending Page	285
Page Count	12
File Format	HTM / HTML PDF
ISSN	14730197
Volume Number	17
Issue Number	2
Journal	Lab on a Chip
DOI	10.1039/c6lc01266c
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Chemical milling Nitrate Sustainable agriculture Enzyme Wide dynamic range Polymerization Electrochemistry Nanocomposite Nitride Photolithography Graphene foam Molecular geometry
Content Type	Text
Resource Type	Article
Subject	Chemistry Nanoscience and Nanotechnology Biochemistry Bioengineering Biomedical Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

A monolithic photonic microcantilever device for in situ monitoring of volatile compounds

Bio-functionalized graphene-graphene oxide nanocomposite based electrochemical immunosensing.

Patterning, integration and characterisation of polymer optical oxygen sensors for microfluidic devices

Bio-functionalized graphene–graphene oxide nanocomposite based electrochemical immunosensing

Preparation of Ultrahigh Molecular Weight Polyethylene/Graphene Nanocomposite In situ Polymerization via Spherical and Sandwich Structure Graphene/Sio2 Support

Metal nitride/graphene nanohybrids: general synthesis and multifunctional titanium nitride/graphene electrocatalyst.

Soft microflow sensors

Rapid and inexpensive fabrication of polymeric microfluidic devices via toner transfer masking

Foam-derived multiferroic BiFeO3 nanoparticles and integration into transparent polymer nanocomposites

In situ integration of graphene foam–titanium nitride based bio-scaffolds and microfluidic structures for soil nutrient sensors

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