4.7 Article

Facile fabrication and selective detection for cysteine of xylan/Au nanoparticles composite

Journal

CARBOHYDRATE POLYMERS
Volume 140, Issue -, Pages 122-128

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2015.12.033

Keywords

Xylan; Au nanoparticle; Green synthesis; Cysteine; Detection

Funding

  1. State Key Laboratory of Pulp & Paper Engineering [2015ZD03]
  2. National Natural Science Foundation of China [51403069]
  3. Natural Science Foundation of Guangdong Province [2014A030313252]

Ask authors/readers for more resources

This work reported a facile and green method to prepare highly stable and uniformly distributed Au nanoparticles (AuNPs), using biopolymer xylan as stabilizing and reducing agent. Full characterizations were performed and the results revealed that AuNPs were well dispersed with the diameters of 10-30 nm. The optimal condition was as follows: the ratio of xylan to HAuCl4 was 150 mg:15 mg, reaction temperature was 80 degrees C and reaction time was 40 min. The xylan/AuNPs composite exhibited highly selective and sensitive sensing of cysteine in aqueous solution, it could distinguish cysteine among dozens kinds of amino acids, and the limit of detection (LOD) for cysteine was calculated as 0.57 M. Besides, the xylan/AuNPs composite was applied for Cys detection in human serum. This study provides a new way for high -value utilization of the rich biomass resource and a cheap, rapid and simple method for Cys detection in real biological samples. (C) 2015 Elsevier Ltd. All rights reserved.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available