nano-congress-2016_posters-accepted-abstracts

Volume 7, Issue 4(Suppl)

J Nanomed Nanotechnol

ISSN: 2157-7439 JNMNT, an open access journal

Page 81

Nano Congress 2016

August 01-02, 2016

conferenceseries

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August 01-02, 2016 Manchester, UK

Nano Congress for Next Generation

Rapid detection of microcystin-LR in biological fluids by functionalized magnetic gold nanoparticles and

surface enhanced Raman spectroscopy

Waleed A Hassanain, Emad L Izake

and

Godwin A Ayoko

Queensland University of Technology, Australia

apid, selective, sensitive and cost effective label free SERS method has been developed for the selective isolation and determination

ofMicrocystin-LR (MC-LR) toxin in biological sample. MC-LR antibody fragments were used as a recognition layer ontomagnetic

core gold nanoparticles to extract MC-LR from horse plasma matrix within 30 minutes. The purified MC-LR was quantitatively

determined by surface enhanced Raman spectroscopy (SERS) and the results were cross validated by ELISA technique. The new SERS

method showed high selectivity and sensitivity down to the femtomole detection limit. The new method has strong potential for the

rapid screening of MC-LR in the field.

Extraction of cellulose nanofibrils from pulp using enzymatic treatment and evaluation of their

papermaking potential

Ajay K Singh

IIT Roorkee, India

ellulose nanofibrils (CNF) have shown potential of their extensive use in various fields, including papermaking, due to their

unique characteristics. In this study, CNF's were prepared by fibrillating the pulp obtained from raw materials e.g. bagasse,

hardwood and softwood using enzymatic pretreatment followed by mechanical refining. These nanofibrils, when examined under

FESEM, show that partial fibrillation on the fiber surface has resulted in production of nanofibers. Mixing these nanofibers with

unrefined and normally refined fibers shows their reinforcing effect. This effect is manifested in observing improvement in the physical

and mechanical properties e.g. tensile index and burst index of paper. Tear index, however, was observed to decrease on blending with

the nanofibers. The optical properties of the paper sheets made from blended fibers showed no significant changes in comparison to

those made from only mechanically refined pulp. Blending also showed increase in °SR and consequent decrease in drainage rate.

These changes observed in mechanical, optical and other physical properties of the paper sheets made from nanofibrils blended pulp

have been tried to explain considering the distribution of the nanofibrils alongside microfibrilsin the fibrous network. Since usually,

paper/boards with higher strength are observed to have diminished optical properties which are a drawback in their quality, the

present work could lead to developing a new technology of making paper with improved strength along with undiminished optical

properties utilizing the concepts of nanoscience and nanotechnology.

J Nanomed Nanotechnol 2016, 7:4 (Suppl)