PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

New 3D-printing method makes two materials from one resin

2025-06-04
(Press-News.org) One-pot recipes make preparing meals quick and easy. And one-pot 3D-printing could do the same for additive manufacturing. Now, researchers publishing in ACS Central Science have demonstrated a new resin that simultaneously creates solid objects and dissolvable structural supports, depending on what type of light the resin is exposed to. The approach could increase the applications for 3D-printed objects, including tissue engineering scaffolds, joints and hinges.

“Vat photopolymerization is known for its fast and high-resolution printing, but one of the most nerve-wracking parts after printing is manually removing supports for intricate interlocking and overhang structures,” says Maxim Shusteff, one of the study’s corresponding authors. “We are very excited that we can use simple chemistry to solve this issue.”

Vat polymerization produces solid 3D objects after beams of light shine on photoreactive liquid resins. This 3D-printing method is typically fast and inexpensive. However, intricate items created with vat polymerization usually require supports such as temporary scaffolds, which get attached when the original object is dipped into a second batch of resin. This second step adds time and expense to the process because of the extra resin and extra effort required to remove the temporary supports. Shusteff, Sijia Huang and colleagues have developed a one-pot method of vat polymerization by formulating a single resin that hardens into permanent and dissolvable materials when exposed to UV and visible light, respectively. They also created a special 3D printer that emits both types of light, allowing the researchers to print an object and its supports simultaneously.

The researchers mixed different components, including acrylate/methacrylate and epoxy monomers, as well as photoreactive substances that absorb both visible and UV light, to create their one-pot resin. During initial tests with the photoreactive substance, they observed that under visible light the acrylate monomers solidified and formed dissolvable, anhydride-based support materials. Under UV light, but not visible light, the epoxy monomers hardened into the permanent portion of the object. To dissolve the support material, the researchers added the objects to a sodium hydroxide solution at room temperature, and the permanent object was revealed within 15 minutes. Importantly, the researchers note that the anhydride-based scaffolds degraded into nontoxic compounds.    

In subsequent demonstrations of the new approach, Shusteff and Huang’s team created increasingly complex structures: a checkerboard pattern, a cross, interlocking rings, a ball in a cage, and two balls in a helix.

The authors acknowledge funding from the U.S. Department of Energy, the University of California Laboratory Research Fees In-Residence Graduate Fellowship, and the Lawrence Postdoctoral Fellowship at Lawrence Livermore National Laboratory.

The paper’s abstract will be available on June 4 at 8 a.m. Eastern time here: http://pubs.acs.org/doi/abs/10.1021/acscentsci.5c00337   

###

The American Chemical Society (ACS) is a nonprofit organization founded in 1876 and chartered by the U.S. Congress. ACS is committed to improving all lives through the transforming power of chemistry. Its mission is to advance scientific knowledge, empower a global community and champion scientific integrity, and its vision is a world built on science. The Society is a global leader in promoting excellence in science education and providing access to chemistry-related information and research through its multiple research solutions, peer-reviewed journals, scientific conferences, e-books and weekly news periodical Chemical & Engineering News. ACS journals are among the most cited, most trusted and most read within the scientific literature; however, ACS itself does not conduct chemical research. As a leader in scientific information solutions, its CAS division partners with global innovators to accelerate breakthroughs by curating, connecting and analyzing the world’s scientific knowledge. ACS’ main offices are in Washington, D.C., and Columbus, Ohio.

Registered journalists can subscribe to the ACS journalist news portal on EurekAlert! to access embargoed and public science press releases. For media inquiries, contact newsroom@acs.org.

Note: ACS does not conduct research but publishes and publicizes peer-reviewed scientific studies.

Follow us: Facebook | LinkedIn | Instagram

END



ELSE PRESS RELEASES FROM THIS DATE:

A better understanding of how gene editing tools work

2025-06-04
You may have seen it in the news recently: a baby in Pennsylvania with a rare genetic disorder was healed with a personalized treatment that repaired his specific genetic mutation. The treatment was created using a form of gene editing called base editing —a method created by Alexis Komor when she was a postdoctoral scholar in molecular biologist David Liu’s group at Harvard University. Since that work was published in 2016, Komor, who is now an associate professor of chemistry and biochemistry at the University of California San Diego, has continued to study base-editing tools to better understand and further develop their capabilities. ...

Tool for protecting soldiers’ brain health earns $3.2 million grant

2025-06-04
A team led by University of Virginia School of Medicine researcher James Stone, MD, PhD, has received $3.2 million from the federal Department of Defense to enhance a critical tool for protecting the brain health of military personnel.  The project aims to upgrade the Generalized Blast Exposure Value (GBEV) tool that assigns a numerical score to a service member’s history of blast exposures that can be used to assess the potential for adverse health outcomes.  “This will represent a major step forward in how the military monitors, protects and cares for its service members,” said Stone, a UVA Health ...

Virginia Tech researcher earns American Heart Association fellowship to explore how obesity increases the risk for heart disease

2025-06-04
At home in Australia, Mark Renton started playing football as soon as he could. He figured it would eventually lead to a career prescribing strength training and exercise regimens to athletes. But as an undergraduate, the sports science curriculum included an exercise metabolism course that explored how cells turn energy into movement. This biological focus captured Renton’s imagination, and he became increasingly interested in the mechanisms that underly muscle function, including developing force through contractions that mediate precise movements. Ultimately, Renton wound up earning a doctorate ...

Study identifies personality traits associated with bedtime procrastination

2025-06-04
DARIEN, IL – A new study to be presented at the SLEEP 2025 annual meeting found that bedtime procrastination in young adults is associated with specific personality traits, including depressive tendencies. Results show that bedtime procrastination was associated with higher neuroticism and lower conscientiousness and extraversion. These results remained significant after statistically adjusting for chronotype. “Our study demonstrated that individuals who habitually procrastinate their bedtime were actually less likely to report seeking out exciting, engaging, or enjoyable activities,” said lead author Steven Carlson, ...

How late college students go to sleep is influenced by the need to belong

2025-06-04
DARIEN, IL – A new study to be presented at the SLEEP 2025 annual meeting found that bedtime procrastination among college students is socially influenced by the need to belong. Results show that sleep duration was more than an hour shorter on school nights when college students delayed their bedtime for in-person social leisure activities. On these nights, their bedtime was strongly correlated with the timing of their last objectively measured social interaction with friends. Students within the bedtime procrastination social network scored higher on the need to belong compared with students outside the network. The need to belong also predicted tie ...

Discovery of giant planet orbiting tiny star challenges theories on planet formation

2025-06-04
The Unexpected Planet  Star TOI-6894 is just like many in our galaxy, a small red dwarf, and only ~20% of the mass of our Sun. Like many small stars, it is not expected to provide suitable conditions for the formation and hosting of a large planet.   However, as published today in Nature Astronomy, an international team of astronomers have found the unmistakable signature of a giant planet, called TOI-6894b, orbiting this tiny star.  This system has been discovered as part of a large-scale investigation of TESS (Transiting Exoplanet ...

Blood sugar response to various carbohydrates can point to metabolic health subtypes, study finds

2025-06-04
A study led by researchers at Stanford Medicine shows that differences in blood sugar responses to certain carbohydrates depend on details of an individual’s metabolic health status. The differences in blood sugar response patterns among individuals were associated with specific metabolic conditions such as insulin resistance or beta cell dysfunction, both of which can lead to diabetes. The study findings suggest that this variability in blood sugar response could lead to personalized prevention and treatment strategies for prediabetes and diabetes. “Right now, the American Diabetes Association ...

Why AI can’t understand a flower the way humans do

2025-06-04
Embargoed until 5:00 a.m. ET, Wednesday June 4, 2025 Even with all its training and computer power, an artificial intelligence (AI) tool like ChatGPT can’t represent the concept of a flower the way a human does, according to a new study.   That’s because the large language models (LLMs) that power AI assistants are based usually on language alone, and sometimes with images.   “A large language model can’t smell a rose, touch the petals of a daisy or walk through a field of wildflowers,” said Qihui Xu, lead author of the study and postdoctoral researcher in psychology at The Ohio State ...

Top scientists call for permanent ban on high seas exploitation

2025-06-04
Extractive activity in international waters - including fishing, seabed mining, and oil and gas exploitation - should be banned forever, according to top scientists. The high seas, the vast international waters beyond national jurisdiction, remain largely unprotected and are increasingly threatened. Writing in the journal Nature, Professor Callum Roberts and co-authors argue that stopping all extractive activity in international waters would prevent irreversible damage to marine biodiversity, the climate, and ocean equity. This would ...

A new blood-based epigenetic clock for aging focuses on intrinsic capacity

2025-06-04
A team of international researchers has developed a new biological age “clock” that estimates how well someone is aging, not just how “old” they or their various organs might be. The IC Clock, which is described in a study in Nature Aging, measures intrinsic capacity (IC), the sum of six key functions that determine healthy aging: mobility, cognition, mental health, vision, hearing and nutrition/vitality. “Maintaining function during the aging process is what matters to older adults. Function should inform medical care instead of focusing on getting patients to some disease-free state,” said senior ...

LAST 30 PRESS RELEASES:

Researchers generate lung cells from mouse fibroblasts in just 7 to 10 days

Prizewinner’s research reveals how immune responses to friendly skin microbiota could pave way for novel vaccination responses

Old aerial photos give scientists a new tool to predict sea level rise

20 million for courageous research at ISTA

Ships trigger high and unexpected emissions of the greenhouse gas methane

Optimizing laser irradiation: An in-silico meta-analysis of skin discoloration treatment

Climate crisis could force wild vanilla plants and pollinating insects apart, threatening global supply

Teens report spending 21% of each driving trip looking at their phone

Study explores the ‘social norms’ of distracted driving among teens

Diver-operated microscope brings hidden coral biology into focus

Enhancing the “feel-good” factor of urban vegetation using AI and street view images

A single genetic mutation may have made humans more vulnerable to cancer than chimpanzees

Innovative nanocomposite hydrogel shows promise for cartilage regeneration in osteoarthritis treatment

2025 Guangci Laboratory Medicine Innovation and Development Conference

LabMed Discovery is included in the ICI World Journals database

LabMed Discovery is included in the China Open Access Journal (COAJ) database

Vaccination support program reduces pneumonia-related mortality by 25 percent among the elderly

Over decades, a healthy lifestyle outperforms metformin in preventing onset of Type 2 diabetes

Mental health disorders, malaria, and heart disease most affected by covid pandemic

Green transition will boost UK productivity

Billions voted in 2024, but major new report exposes cracks in global democracy

Researchers find “forever chemicals” impact the developing male brain

Quantum leap in precision sensing across technologies

Upgrading biocrude oil into sustainable aviation fuel using zeolite-supported iron-molybdenum carbide nanocatalysts

For effective science communication, ‘just the facts’ isn’t good enough

RT-EZ: A golden gate assembly toolkit for streamlined genetic engineering of rhodotorula toruloides

Stem Cell Reports announces five new early career editors

Support networks may be the missing link for college students who seek help for excessive drinking

The New England Journal of Medicine shines spotlight on forensic pathology

Scientists discover protein that helps lung cancer spread to the brain

[Press-News.org] New 3D-printing method makes two materials from one resin