Prominent nanoscientist retracts paper after PhD students flagged error
<https://i0.wp.com/retractionwatch.com/wp-content/uploads/2023/05/Weiss_Paul.jpg>Paul
Weiss

The authors of a 2018 nanoscience paper have retracted the article after
three doctoral students highlighted a problem with its methods.

The 2018 study attracted media attention
<https://www.genengnews.com/topics/drug-discovery/nanospears-may-revolutionize-gene-therapy/>
for
suggesting that nanospears, microscopic structures similar to splinters,
may be useful in delivering gene therapies.

Paul Weiss <https://www.chemistry.ucla.edu/directory/weiss-paul-s/>, a
nanoscientist and a corresponding author of the paper, announced
<https://twitter.com/PSWnano/status/1643694132924383232> the retraction on
Twitter April 5, the same day the retraction notice appeared. Weiss holds
several academic positions, including Presidential Chair of Chemistry and
Distinguished Professor of Chemistry and Biochemistry at the University of
California, Los Angeles (UCLA).

The study <https://pubs.acs.org/doi/10.1021/acsnano.8b00763>,
“Precision-Guided Nanospears for Targeted and High-Throughput Intracellular
Gene Delivery,” was published in *ACS Nano,* of which Weiss was a founding
editor-in-chief
<http://archive.sciencewatch.com/inter/jou/2010/10sepACSNano/>. It has been
cited 80 times, according to Clarivate’s Web of Science.

The retraction notice <https://pubs.acs.org/doi/10.1021/acsnano.3c02453>
 stated:

The authors retract this article (DOI: 10.1021/acsnano.8b00763) as the
fluorescence method by which the transfection efficiency was determined is
unreliable and incorrect and led to greatly overestimated values of
efficiency. The original data are also no longer available and cannot be
verified.

We thank Drs. Jason Belling, Alexandra Mendoza, and Natcha Wattanatorn for
bringing the measurement issue to our attention.

We reached out to Xiaodong Chen, the journal’s editor-in-chief and a
professor at Nanyang Technological University in Singapore, for comment and
heard back from an ACS spokesperson, who said:

The issue you mention below was an author-requested retraction. For
reference, we follow COPE’s retraction guidelines
<https://publicationethics.org/retraction-guidelines> in such situations.

The three scientists the notice credited for flagging the error were PhD
students at the time.  One was an author of the original study, Weiss and
his co-authors Hsian-Rong Tseng and Steven J. Jonas, both also at UCLA,
told *Retraction Watch *in a joint email. All have since earned their
degrees.

We contacted Belling, Mendoza, and Wattanatorn, but have not heard back.

Weiss, Tseng, and Jonas said the three then-students flagged the error
about a month after the paper was initially published, preventing it from
creeping into other papers. They said they had planned to repeat the
experiments properly, but “the equipment and people were not available,” so
they retracted the paper. They added:

We plan to repeat these experiments with the correct measurements to
determine accurate efficiencies.

We did a thorough search for the original data and could not find it as, at
the time, the data on the microscope used were not archived. We have
addressed this issue throughout our laboratory.

We very much appreciate the support the community has shown since we
published and publicized this retraction.

After Weiss posted the retraction note on Twitter, several scientists
tweeted in support.

KR     Last year Dr Weriss new research stated that by changing the gene
and deliver as anew, many new things can be brought over in evolution and
under the medical treatments. Dr weiss after careful reading and data
finalised the theory and brought it to the world. However his PH D students
3 in number, tried the experiments with the values providwed in those data,
but never worked; and all that data changed now as diffrent values; this wa
sbrought before his professor Dr weisss. Where the data value keep changing
, Gene delivery is a doubtful pheneomena as of now. So Dr Weiss withdrew
the reaasearch reports from the science society, showing his grace.

KR IRS 14 5 23

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