Category: chemistry retractions

Concurrent submission and publication squashes nano paper

CoverIssueJExptNanoSciA group of materials researchers at Solapur University in India have lost a paper because they submitted an identical manuscript to two journals. Both journals published the paper, though only one has retracted it.

Taylor and Francis journal Journal of Experimental Nanoscience retracted the 2012 paper in February this year; the notice doesn’t explain the delay, or how the editors learned about the overlap.

The retraction indicates the editor of the journal that published the other version of the paper was informed of the overlap, but the journal — – Journals of Materials Science: Materials in Electronics — has not issued a retraction.

Here’s the notice for “Development of nanostructured CdS sensor for H2S recognition: structural and physical characterizations”: Continue reading Concurrent submission and publication squashes nano paper

Drug paper gets a fix, notching several corrections

rsc_tb_1_3_COVER.inddThe Journal of Materials Chemistry B has issued a laundry list of corrections for a 2014 chemotherapy paper, which address re-use of “some text”, incorrectly stated doses, and miscalculations of the drug concentration, among other issues.

The paper described a new way to deliver gemcitabine via nanoparticles, focusing the drug on the tumors.

It turns out the authors’ focus wasn’t so clear when writing the paper. The researchers, at the Chinese Academy of Medical Science, Peking Union Medical College, and Tianjin University in China, said they used “some text” from two 2013 papers by a team of French oncologists “without appropriate attribution,” as well as repeatedly getting the in vivo dose wrong. The manuscript also contained several incorrect calculations of the “drug loading,” or the proportion of active drug.

Here’s the correction for “Tailor-made gemcitabine prodrug nanoparticles from well-defined drug–polymer amphiphiles prepared by controlled living radical polymerization for cancer chemotherapy” (free, but requires sign-in): Continue reading Drug paper gets a fix, notching several corrections

Nothing gold can stay: gold nanoparticle paper retracted for figure theft

matresexpA paper on gold nanoparticles has been retracted after the publisher learned one of the figures had a “high degree of similarity” to a figure published by other authors a few months prior.

According to the notice, it was two authors of the retracted paper themselves who pointed out the overlap. The first author, Pratap Sahoo, is not mentioned, although it does say all three authors agreed to retract. The corresponding author of the original paper told us he was unaware of the incident.

You can compare the figures for yourself – on the left is figure 6(a) from the retracted Materials Research Express paper, rotated 90 degrees. On the right is figure 4(e) from “Porous Au Nanoparticles with Tunable Plasmon Resonances and Intense Field Enhancements for Single-Particle SERS,” published in the Journal of Physical Chemistry Letters: Continue reading Nothing gold can stay: gold nanoparticle paper retracted for figure theft

Data “irregularities” sink paper on water treatment

desal water treatmentDesalination and Water Treatment has retracted a paper it published in January by a pair of Turkish researchers for “irregularities in the methodology and data management.”

The article, “Molecular simulation of Zn2+, Cu2+, Pb2+, and NH4+ ion-exchange in Clinoptilolite,” investigated how well different natural forms of the zeolite Clinoptilolite remove heavy metals from wastewater. It came from the lab of Mehmet Göktuğ Ahunbay, of Istanbul Technical University, accompanied by first author Barış Demir.

According to the notice: Continue reading Data “irregularities” sink paper on water treatment

Bielawski and Wiggins up retraction count to five with three in JACS

Journal of the American Chemical SocietyThe Journal of the American Chemical Society (JACS) has retracted three articles that had earned expressions of concern by chemistry researchers who were under investigation at the University of Texas, Austin.

Kelly Wiggins and Christopher Bielawski have already received two other retractions and several EoCs.

The newly retracted articles have each been cited more than 50 times, according to Thomson Scientific’s Web of Knowledge.

The three papers are: Continue reading Bielawski and Wiggins up retraction count to five with three in JACS

Biofuels paper burned by “improper citation methods” – ie, plagiarism

crestCritical Reviews in Environmental Science and Technology (CREST) has retracted a paper on biofuels for “improper citation methods.”

Given the journal’s track record, we’re guessing this is just another euphemism for plagiarism. (Also because the retraction notice flags a “breach of warranties made by the authors with respect to originality.”) In 2013, CREST retracted two papers for failing to use “proper citation,” which earned it top billing in our Lab Times column about publishers’ seemingly allergic reactions to the P-word.

Here’s some of the notice for “Promising Unconventional Pretreatments for Lignocellulosic Biomass”, which described new ways to process plant biomaterials into fuel: Continue reading Biofuels paper burned by “improper citation methods” – ie, plagiarism

Misconduct dissolves paper on possible clot-busters

amclct_v006i002.inddDrug researchers in India have lost their 2013 paper in ACS Medicinal Chemistry Letters because the first author fabricated findings.

The article, by a group from the Maharaja Sayajirao University of Baroda, Vadodara, in Gujarat, was attempting to synthesize and screen novel clot-busting drugs; one compound exhibited the same activity as aspirin or warfarin, but without increasing bleeding time.

Sadly, it appears as if this potential medical advance was not to be. Here’s the retraction notice for “Novel 2-Aminobenzamides as Potential Orally Active Antithrombotic Agents”: Continue reading Misconduct dissolves paper on possible clot-busters

Catalyst for change: grad student catches error in chem experiments, prompts retraction

acscatalysisACS Catalysis has retracted a 2012 research letter from a chemistry lab that discovered an error in their experiments.

According to last author Rory Waterman at the University of Vermont, an undetected reaction caused his lab to mistakenly mischaracterize the products of an iridium catalyst. The diligence of a graduate student brought it all to light, he noted: “In short, it was the ability of one of my group members to be a very good scientist.”

The letter, titled “High Activity and Selectivity for Silane Dehydrocoupling by an Iridium Catalyst,” was published in February. It has only accumulated 5 citations, according to Thomson Scientific’s Web of Knowledge.

According to the retraction notice: Continue reading Catalyst for change: grad student catches error in chem experiments, prompts retraction

Science chemistry paper earns retraction after expression of concern, marking second for UT group

scienceThe authors of a 2011 Science paper that proposed a new way to direct chemical bonds have withdrawn the paper after concerns about the data prompted an investigation and Editorial Expression of Concern last year from the journal. The retraction is the second for the group, which has also had seven other expressions of concern.

After a reader emailed the editors to raise suspicions about the data, corresponding author Christopher W. Bielawski, then based at the University of Texas at Austin, led an investigation of all the figures. It found substantial problems: “In over 50% of the figure parts, the authors deemed the data unreliable due to uncertainty regarding the origin of data or the manner in which the data were processed,” according to the retraction notice.

UT Austin concluded that there had been misconduct, but did not elaborate.

Continue reading Science chemistry paper earns retraction after expression of concern, marking second for UT group

Several chem journals neutralize papers from Brazil group over figure fraud

quimica novaSeveral journals have retracted or corrected papers from a group at State University of Maringá in Brazil over what one chemistry journal calls “fraudulent use” of figures previously published by the authors.

Química Nova, which is retracting a 2013 paper, issued a notice that taps an additional eight articles with Angelica Lazarin as the corresponding author that reused figures. Specifically, the papers included images “where same trace on the figure was assigned to different conditions and/or compounds.”

A number of the papers mentioned in the Química Nova notice were co-authored by Claudio Airoldi, whose group retracted 11 papers in 2011 following concerns over fraudulent nuclear magnetic resonance images.

Continue reading Several chem journals neutralize papers from Brazil group over figure fraud