1. A dual-channel colorimetric and fluorescent sensor for the rapid and ultrasensitive detection of kanamycin based on gold nanoparticles-copper nanoclusters.
Nie Q, Deng J, Xie B, Shi G, Zhou T
Analytical methods : advancing methods and applications, 2021
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0
2. Rapid determination of three textile surfactants in environmental samples by modeling excitation-emission second-order data with multi-way calibration methods.
Martínez RA, Fechner DC, Delfino MR, Pellerano RG, Goicoechea HC
Environmental science and pollution research internationalEnviron Sci Pollut Res IntRapid determination of three textile surfactants in environmental samples by modeling excitation-emission second-order data with multi-way calibration methods.10.1007/s11356-021-17660-7The textile industry is an important potential source of environmental pollution due to the use of chemical products. Dyes, hydrolyzed dyes, and surfactants, among others, are chemical compounds present in wastewater of textile plant. Moreover, the anionic surfactants have toxic effects for various aquatic organisms even in low concentrations. The methodologies investigated to quantify surfactants, in general, consume a lot of analysis time and frequently use toxic or environmentally objectionable reagents. For these reasons, the objective of this work was to develop a quick and simple method to quantify surfactants without the use of expensive reagents and equipment, avoiding extraction and preconcentration stages. The proposed method is based on fluorescent spectroscopy measurements for the acquisition of second-order data in excitation-emission matrices and multivariate calibration techniques applied to the data. The unfolded partial least squares combined to residual bilinearization (U-PLS/RBL) algorithm was better than parallel factor analysis (PARAFAC). U-PLS/RBL accurately quantified alkylnonylphenolethoxylated (APEO), dodecylbenzenesulfonic acid (ADBS), and 2-phenoxy-ethoxylated fatty alcohol (AGFE) surfactants. The chemometric model obtained good analytical figures of merit: REP% between 5 and 13 and LOQ between 0.45 and 2.77 ?g mL-1. This methodology had no significant difference compared with results obtained by a HPLC-FD reference technique, in addition with a considerable reduction in analysis time, reagent consumption, and therefore lower cost. For environmental applications, APEO, ADBS, and AGFE were quantify in textile wastewater treatment and in the receiving water body. The concentrations varied from 8.73 to 73.94 ?g mL-1 in the textile wastewater and were not detected in the receiving water body.© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.MartínezRamón ARADpto. de Química, Facultad de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional del Nordeste, Av. Libertad 5460, 3400, Corrientes, Argentina. ram.alb.mart@exa.unne.edu.ar.FechnerDiana CDCInstituto de Química Básica y Aplicada del Nordeste Argentino (IQUIBA-NEA), UNNE-CONICET, Facultad de Ciencias Exactas y Naturales y Agrimensura, Av. Libertad 5400, 3400, Corrientes, Argentina.DelfinoMario RMRDpto. de Química, Facultad de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional del Nordeste, Av. Libertad 5460, 3400, Corrientes, Argentina.PelleranoRoberto GRGInstituto de Química Básica y Aplicada del Nordeste Argentino (IQUIBA-NEA), UNNE-CONICET, Facultad de Ciencias Exactas y Naturales y Agrimensura, Av. Libertad 5400, 3400, Corrientes, Argentina.GoicoecheaHéctor CHCLaboratorio de Desarrollo Analítico y Quimiometría (LADAQ), Catedra de Química Analítica I, Universidad Nacional del Litoral, Ciudad Universitaria, S300ZAA, Santa Fe, Argentina.engJournal Article20211201GermanyEnviron Sci Pollut Res Int94417690944-1344IMFluorescencePARAFACScatteringTextile auxiliariesU-PLS/RBL20210608202111162021121735202112260202112260aheadofprint3485034910.1007/s11356-021-17660-710.1007/s11356-021-17660-7References, 2021</i></font><br><font color=#008000>http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0<br></font></span><br>3. <a href=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0 class=title>Sporadic Dissemination of <i>tet</i>(X3) and <i>tet</i>(X6) Mediated by Highly Diverse Plasmidomes among Livestock-Associated Acinetobacter.</a><a href=http://ubio.org/tools/linkit.php?map%5B%5D=all&link_type=2&url=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0><img src=linkit.png border=0 title='LinkIT' alt='LinkIT'></a>
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<br><span class=j>Martis B S, Mohan AK, Chiplunkar S, Kamath S, Goveas LC, Rao CV<br><font color=gray><i>Current research in microbial sciences, 2021</i></font><br><font color=#008000>http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0<br></font></span><br><br><br><table cellspacing=0 cellpadding=0 align=center><tr valign=bottom><td align=center><img src=p.png border=0></td><td align=center><img src=o_red.png border=0></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=2><img src=o_yellow.png border=0></a></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=3><img src=o_yellow.png border=0></a></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=4><img src=o_yellow.png border=0></a></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=5><img src=o_yellow.png border=0></a></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=6><img src=o_yellow.png border=0></a></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=7><img src=o_yellow.png border=0></a></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=8><img src=o_yellow.png border=0></a></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=9><img src=o_yellow.png border=0></a></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=10><img src=o_yellow.png border=0></a></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=2><img src=rtal.png border=0></a></td></tr><td align=center></td><td align=center>1</td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=2>2</a></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=3>3</a></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=4>4</a></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=5>5</a></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=6>6</a></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=7>7</a></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=8>8</a></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=9>9</a></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=10>10</a></td><td align=center><a href=http://ubio.org/portal/index.php?search=environmental+samples&category=l&client=pubmed&startPage=2>»</a></td></tr></table></table></tr></table></td><script src="http://www.google-analytics.com/urchin.js" type="text/javascript">
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