A PHP Error was encountered

Severity: Warning

Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests

Filename: helpers/my_audit_helper.php

Line Number: 176

Backtrace:

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 1034
Function: getPubMedXML

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3152
Function: GetPubMedArticleOutput_2016

File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global

File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword

File: /var/www/html/index.php
Line: 316
Function: require_once

A novel series colorimetric and off-on fluorescent chemosensors for Fe3+ based on rhodamine B derivative. | LitMetric

A novel series colorimetric and off-on fluorescent chemosensors for Fe3+ based on rhodamine B derivative.

J Fluoresc

Phosphorus Chemical Engineering Research Center of Henan Province, Key Laboratory of Chemical Biology, Zhengzhou University, Zhengzhou, China.

Published: January 2013

A novel series colorimetric and off-on fluorescent chemosensors (2a, 2b, 2c) were designed and synthesized, which showed reversible and highly selective and sensitive recognition toward Fe(3+) over other examined metal ions. Upon addition of Fe(3+), sensors (2a, 2b) exhibit remarkably and 2c exhibits moderate enhanced absorbance intensity and color change from colorless to pink in CH(3)OH-H(2)O(1:1, v/v). The three compounds (2a, 2b, 2c) may therefore be applicable as rhodamine-based turn-on type fluorescent chemosensors.

Download full-text PDF

Source
http://dx.doi.org/10.1007/s10895-012-1118-1DOI Listing

Publication Analysis

Top Keywords

fluorescent chemosensors
12
novel series
8
series colorimetric
8
colorimetric off-on
8
off-on fluorescent
8
chemosensors fe3+
4
fe3+ based
4
based rhodamine
4
rhodamine derivative
4
derivative novel
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!