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Home » Page 22

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Professor Kovac Selected Panelist of 67 Lindau Nobel Laureate Meeting

June 8, 2017 by chemweb

Jeff KovacJeff Kovac, professor of chemistry at the University of Tennessee, Knoxville was invited to be a panelist, leading a discussion of “Ethics in Science,” at the closing panel of 67th Lindau Nobel Laureate Meeting. The meeting will be held from June 25th to 30th, the panel discussion will take place on June 30th on Mainau Island, Germany.

“In preparation of this panel discussion, our scientific chairpersons Professor Astrid Gräslund and Professor Wolfgang Lubitz suggested Professor Kovac as a panelist, based on his large experience in the field and his publications and presentations.” said Wolfgang Huang, Director Executive Secretariat of Council for the Lindau Nobel Laureate Meetings.

Kovac joined the chemistry department at UT. He has a bachelor’s degree from Reed College, a doctorate from Yale University, and two years of postdoctoral research at the Massachusetts Institute of Technology.

In recent years, Kovac has frequently spoke about ethics in chemistry. He gave a talk titled “Ethics of chemical weapon research” during 2016 American Chemical Society’s meeting in Denver, CO in March. His talk was highlighted on C&EN website as part of “Denver National Meeting Mania.” Then in fall 2016, Kovac was invited by the Swiss Academy of Sciences (SCNAT) to speak in SCNAT Ethics Lecture Tour, where he visited six universities and academic institutions in Switzerland at the end of October and beginning of November.

The Lindau Nobel Laureate Meeting started in 1951. Each year, “the most promising young students come to the small island of Lindau to meet with Nobel Laureates for a week full of inspiration,” said Huang. For this year’s meeting, 420 young scientists from 78 countries have been selected to participate after passing a multi-stage international selection process.

Filed Under: News

Professor Schweitzer to Receive Central Methodist University Alumni Award

May 2, 2017 by chemweb

George SchweitzerThe significant achievements and exemplary careers of six graduates from Central Methodist University will be celebrated at Central Methodist University’s 71st annual Alumni Awards banquet on Saturday, May 6. Among them is George K. Schweitzer, Professor of Chemistry at the University of Tennessee, Knoxville. Schweitzer came to UT in 1948 to initiate the inorganic division of the newly-established Ph.D. program in chemistry and to participate in the early UT-Oak Ridge graduate instructional and research program. He has mentored over 130 graduate students, has been elected UT Phi Kappa Phi lecturer, served as UT’s first Mace Bearer, gave the 1996 UT commencement address, has been named a Distinguished Service Professor by the UT Alumni Association and received the Joe Johnson Lifetime Service Award in 2014 in recognition of his 65 years of dedicated service to UT.

Dr. George K. Schweitzer, Class of 1945

Knoxville, Tenn./Hometown: Poplar Bluff, Mo.

The lifetime achievements of CMU Distinguished Alumni Award recipient Dr. George K. Schweitzer of Knoxville, Tenn. abound, and continue to this day. A native of Poplar Bluff, Mo., he earned the first of his six degrees, a Bachelor of Arts in Chemistry, from then-Central College in 1945.  His degrees include: MS in Geochemistry, MA in Theology, PhD in Chemistry, PhD in History and Philosophy of Religion, ScD for work in the History of Science.

He began teaching chemistry at the University of Tennessee in 1948 and remains active in the department. Schweitzer also served a faculty fellowship at Columbia University (New York, N.Y.). The author of over

200 scholarly articles and publications, mainly scientific, but including some on the topic of genealogy, he has lectured to over 200 scientific, historical, and genealogical societies and universities in Europe and North America.

While his professional preparation has been in science, Schweitzer also taught university-level course on the Civil War, the History of Religion, the History of Technology, and more. A man of many interests, he has done research in radiochemistry, nanoparticles, PET body scanner detectors, and solvent extraction, and his memberships range from the American Chemical Society to the American Philosophic Association.

Filed Under: News

Department of Chemistry Held 2017 Honors Day

April 28, 2017 by chemweb

2017 Honors DayDepartment of Chemistry held 2017 Honors Day on Thursday, April 27 to recognize the achievements among students, faculty and staff members of the department. Below, you will find a complete list of awardees this year. Click to view this year’s pictures.

UNDERGRADUATE AWARDS

CRC Press General Chemistry Award – Seth S. Street

C. W. Keenan Outstanding General Chemistry Student Award –  Andrew C. Dixson

Halbert and Anne Carmichael Scholarship – Anna C. Fraser

Dr. Lucy E. Scroggie Scholarship – Taylor D. Payne

C. A. Buehler Chemistry Scholarship –  Carolyn E. Barnes

East Tennessee Section, ACS, Award – Peymon C. Baghernejad

ACS-Hach Land Grant Scholarships – Tyler H. Mann and Grace C. Wilson

Melaven-Rhenium Scholarship – Wesley N. Cox and Frederick A. Crawford

Honors Chemistry Recognition – Jacob C. Carpenter, Molly E. Landon, Trell F. Stroud, Jonathan C. Thomas

GRADUATE AWARDS

Outstanding Teaching Awards – Justin K. Kirkland and Brandon J. Kennedy

Keenan Teaching Awards – Amanda J. Clune

Second Year Candidacy Award – Ethan W. Kent and Terence J. Moore

Judson Hall Robertson Fellowship in Analytical Chemistry – Zachary L. Ogburn

Graduate Fellowship for Achievement in Inorganic Chemistry – William C. Anderson

Jerome Eastham Fellowship in Organic Chemistry – Adam J. Carr

Eugene John Barber Fellowship in Physical Chemistry – Brian S. Holinsworth

Burchfield Burridge Warner Fellowship in Polymer Chemistry – Bethany M. Aden

East Tennessee Section, ACS, Graduate Fellow – Kevin R. Gmernicki

Gleb Mamantov Graduate Chemistry Scholar – Lauren A. Brown

STUDENT RECOGNITIONS

Chancellor’s 2017 Top Collegiate Scholar Award – Allison S. Poget

Chancellor’s 2017 Extraordinary Academic Achievement – Allison S. Poget

2017 Faculty Senate Research Council Summer Graduate Research – Assistantship Committee – Peter Pham

J. Wallace & Katie Dean Graduate Fellowship (Access & Diversity) – Peymon C. Baghernejag

UTK PEER Graduate Fellowship Award – Brian S. Holinsworth

Winners of the Board of Visitor’s Poster Competition – William C. Anderson and Wei Lu

STAFF AWARDS

Outstanding Service Award – Kristina M. Robinette and Jessica VanBrunt

Carol Moulton ACGS Service Award – Dr. Rachel Rui

James F. Green ACGS Service Award – Jessica L. VanBrunt

FACULTY AWARDS

New Faculty – Dr. Konstantinos Vogiatzis

Alexander Van Hook Faculty Awards – Dr. Tessa R. Calhoun and Dr. Craig E. Barnes

Filed Under: News

Professor Jenkins Awarded at Chancellor’s Honors Banquet

April 26, 2017 by chemweb

David JenkinsAssociate Professor of Chemistry David Jenkins received Research and Creative Achievement—Professional Promise Award at the 2017 Chancellor’s Honors Banquet on April 19.

David Jenkins

Associate Professor of Chemistry David Jenkins has been called one of the most promising synthetic inorganic chemists of his generation. Colleagues describe him as a dynamic teacher and a leader in undergraduate chemistry education who is, as one put it, “a shining example of the kind of teacher-scholar that is the foundation of excellence in top 25 academic institutions.” Jenkins’s work involves creating new synthetic “tools” that may help chemists more effectively produce pharmaceuticals such as chemotherapy medicines. Jenkins received a prestigious National Science Foundation CAREER award for his research in 2013 and just completed a successful proposal for the National Institutes of Health. He has published more than 30 papers in some of the top journals in chemistry, 18 of them written in the past five years. In that same span of time, he also completed two books and filed for a patent. He received the Department of Chemistry’s 2014 Mamantov Professorship Award for an outstanding junior faculty member in chemistry and the Chemical Communications Young Investigator Award in 2014.

Filed Under: News

Second Year Graduate Student Paper Featured on Journal Cover

March 21, 2017 by chemweb

Zachary OgburnZachary Ogburn, a second year chemistry graduate student from the Frank Vogt’s Research Group, published his first paper titled “Microalgae as embedded environmental monitors” on Analytica Chimica Acta (ACA), a leading journal in analytical chemistry. The paper was selected to be featured on the journal’s cover (Vol. 954).

In his first-authored paper, Ogburn developed analytical methodologies that utilize microalgae’s adaptation as a novel approach for in-situ environmental monitoring. Microalgae are important component in marine ecosystems because of their ability to transform large quantities of inorganic compounds into biomass. The study specifically looked at phytoplankton’s sequestration of atmospheric CO2, a greenhouse gas, and nitrate, one cause of harmful algae blooms.

Frank Vogt, associate professor of chemistry and Ogburn’s mentor, is quite proud of Ogburn’s achievement. “I want to point out that ACA is a leading journal in analytical chemistry and Zack got this paper accepted at the end of his 2nd year!” Vogt said.

ACA is an international journal that publishes research in all branches of analytical chemistry. According to 2016 Journal Citation Reports published by Reuters, ACA has a 5-year impact factor of 4.841.

Ogburn grew up in Loganville, GA, where he graduated from Loganville High in 2009 as well as enlisted in the Georgia Army National Guard. He was a recipient of the Georgia Military Scholarship and graduated from the University of North Georgia with his B.S. in chemistry in 2013. Upon graduation Ogburn received a commission as an officer in the Chemical Corps and he is currently a 1st LT serving as the chemical officer for the 1-121 Infantry Battalion of the Georgia Guard. Ogburn joined the Department of Chemistry at the University of Tennessee, Knoxville in the spring of 2015 and is currently working towards his Ph.D. in analytical chemistry.

Filed Under: News

UT-ORNL: Small Nanoparticles Have Surprisingly Big Effects on Polymer Nanocomposites

March 13, 2017 by chemweb

Alexei SokolovPolymer nanocomposites mix particles billionths of a meter (nanometers, nm) in diameter with polymers, which are long molecular chains. Often used to make injection-molded products, they are common in automobiles, fire retardants, packaging materials, drug-delivery systems, medical devices, coatings, adhesives, sensors, membranes and consumer goods.

When a team of scientists, including UT’s Alexei Sokolov, tried to verify that shrinking the nanoparticle size would adversely affect the mechanical properties of polymer nanocomposites, they got a big surprise. They found an unexpectedly large effect of small nanoparticles.

The findings were reported recently in the journal ACS Nano.

In addition to Sokolov, the team included scientists from Oak Ridge National Laboratory, and the University of Illinois at Urbana-Champaign. Sokolov is a UT-ORNL Governor’s Chair based in the Department of Chemistry.

Blending nanoparticles and polymers enables dramatic improvements in the properties of polymer materials. Nanoparticle size, spatial organization and interactions with polymer chains are critical in determining behavior of composites. Understanding these effects will allow for the improved design of new composite polymers, as scientists can tune mechanical, chemical, electrical, optical and thermal properties.

Small nanoparticles stick to segments of polymer chain about the same size as the nanoparticles themselves. These interactions produce a polymer nanocomposite that is easier to process because nanoparticles move fast, quickly making the material less viscous. At right, many segments of a polymer chain stick to a larger nanoparticle, making it difficult for that nanoparticle to move. Its slower movement results in a viscous material that is more difficult to process. Source: ORNL

Until recently, scientists believed an optimal nanoparticle size must exist. Decreasing the size would be good only to a point, as the smallest particles tend to plasticize at low loadings and aggregate at high loadings, both of which harm macroscopic properties of polymer nanocomposites.

“We see a shift in paradigm where going to really small nanoparticles enables accessing totally new properties,” Sokolov said. That increased access to new properties happens because small particles move faster than large ones and interact with fewer polymer segments on the same chain. Many more polymer segments stick to a large nanoparticle, making dissociation of a chain from that nanoparticle difficult.

“Now we realize that we can tune the mobility of the particles—how fast they can move, by changing particle size, and how strongly they will interact with the polymer, by changing their surface,” Sokolov said. “We can tune properties of composite materials over a much larger range than we could ever achieve with larger nanoparticles.”

Continue reading on the Oak Ridge National Laboratory website.

Filed Under: News, Polymer Chemistry

Chemistry Graduate Student Neil Williams Featured in USA Today

January 13, 2017 by chemweb

Neil WilliamsNeil Williams, a 4th year PhD candidate in Professor Sheng Dai’s group, had his research featured in a USA Today article. Williams is part of a team at Oak Ridge National Laboratory that discovered a method for removing carbon dioxide (CO2) directly from air. This breakthrough in carbon capture was also mentioned by Knoxville News Sentinel and Forbes.

Read the full article on USA Today.

Filed Under: News

Chemistry Professor Emeritus Bill Bull Passed Away

January 3, 2017 by chemweb

William BullWilliam Bull, also known as Bill Bull, chemistry professor emeritus and former associate head of department at UT, passed away Tuesday, December 27, 2016. The service took place at 10 a.m. December 31 at Second Presbyterian Church. The following obituary was published on the Knoxville News Sentinel website.

William Bull

1933 – 2016

Knoxville, TN

William Earnest Bull, of Knoxville, passed away Tuesday, December 27, 2016, just a few weeks shy of celebrating his 84th birthday. Born during the height of the depression in 1933 on a farm near Lonedell, MO, his family moved to Granite City, IL where he spent most of his childhood. He excelled in school, especially enjoying mathematics and science. Through his hard work he earned academic scholarships and was the first member of his family to graduate from college. While in school at Southern Illinois University, he met and married the love of his long life, Margaret in 1955. After graduating from the University of Illinois, Champaign with a Doctor of Philosophy in Chemistry, Bill joined the faculty of the Chemistry Department at the University of Tennessee, Knoxville. After 40 years of service, he retired as Associate Head of the Department. To mark this occasion an audio/visual classroom in Dabney Hall was named in his honor. Bill was a passionate gardener who enjoyed raising vegetables. He turned a rocky, clay-filled patch of dirt into a very bountiful garden at their west Knoxville home. He also built a greenhouse, which was used to grow orchids, poinsettias, cacti and seedlings. In his retirement years, he and Margaret moved to Clinton, TN where he continued to garden. They also traveled extensively throughout Europe, the Mideast and South America. Bill was a strong supporter of the arts and the community. He enjoyed the Knoxville Symphony and Knoxville Opera. He assisted Margaret with volunteer work at the Knoxville Museum of Art Library. In addition, He was a faithful and dutiful member of Second Presbyterian Church.

He was preceded in death by his wife, Margaret; his parents, Everett and Daisy Bull; and his sister, Elizabeth Caschetta. Bill is survived by his sons, Larry, Jeff and his wife Sara, and Greg; grandchildren, Michael and Christina; great-grandson Christian; and his sister Barbara.

Funeral services will be held at 10:00 a.m., Saturday, December 31, 2016, at Second Presbyterian Church with receiving of friends immediately following the service. The family will have a private burial. In lieu of flowers the family requests consideration of a donation to Second Presbyterian Church, 2829 Kingston Pike Knoxville, TN 37919 or the University of Tennessee Foundation – Chemistry Enrichment Fund at Arts and Sciences Development, 137 Alumni Memorial Building, 1408 Middle Drive, Knoxville, TN 37996, (www.chem.utk.edu/giving). Arrangements by Rose Mortuary Mann Heritage Chapel. Online condolences at www.rosemortuary.com

 

Published in Knoxville News Sentinel from Dec. 29 to Dec. 31, 2016- See more at: http://www.legacy.com/obituaries/knoxnews/obituary.aspx?n=william-bull&p…

Filed Under: News

Chemistry Department Received Increased Funding from NIH

January 3, 2017 by chemweb

Funding from NIHIn 2016, the National Institutes of Health increased support for projects in the Department of Chemistry at the University of Tennessee, Knoxville.

Tessa Calhoun, assistant professor, received funding for her project “Imaging Amphotericin B’s Mechanism of Action with Transient Absorption Microscopy.” David Jenkins, associate professor, is the PI of awarded project “Catalytic C2+N1 Aziridination from Organic and Carbamate Azides.” The third awarded project, “Labeling of Lipid Products Using Synthetic Tagged Metabolite Probes to Analyze Lipid Biosynthesis and Trafficking,” was directed by associate professor Michael Best.

Both Jenkins and Best were also NSF CAREER awardees in 2013 and 2010.

“We are thrilled to see so many new NIH awards in the Department of Chemistry,” said Taylor Eighmy, Vice Chancellor for Research and Engagement at the UT Office of Research and Engagement. “Since implementing a strategic plan to grow UT’s NIH funding in 2014, we have created a number of new resources and development opportunities through the Office of Research and Engagement to support our NIH researchers and help them submit strong proposals. These calculated efforts are beginning to have a noticeable impact on our researchers’ success with NIH, and we hope this trend continues.”

The following are the descriptions of each awarded project:

Tessa Calhoun, Imaging Amphotericin B’s Mechanism of Action with Transient Absorption Microscopy

The dramatic rise of antimicrobial resistance has created the need for new approaches in the design of novel drug systems. Professor Calhoun’s project focuses on the study of Amphotericin B, an important antifungal therapeutic often used as a last line of defense for systemic fungal infections, which has developed limited cases of clinical resistance despite decades of use. A better understanding of how this drug operates within cells could inform our understanding of the design principles of novel drug delivery systems needed to reduce the occurrences of antimicrobial resistance. In her project, Calhoun will use transient absorption microscopy to directly image how Amphotericin B acts in both model and living systems to achieve its effective behavior.

David Jenkins, Catalytic C2+N1 Aziridination from Organic and Carbamate Azides

Aziridines are biologically active functional groups found in natural products, such as mitomycins and azinomycins, which are critical in biology and synthetic medicinal chemistry due to their antitumor properties. Despite the myriad uses for aziridines in pharmaceutical products, as well as synthetic intermediates, their efficient synthesis has not yet been achieved. In this project, Jenkins proposes to extend research on catalytic aziridination to include new directions relevant to the medicinal chemistry community—in particular, the synthesis of carbamate protected aziridines and chiral aziridines. Chiral aziridines are a useful tool in the synthesis of single enantiomer drugs.

Michael Best, Labeling of Lipid Products Using Synthetic Tagged Metabolite Probes to Analyze Lipid Biosynthesis and Trafficking

While lipids control many of the most critical biological processes that lead to diseases (including cancer), tracking the production of these molecules in cells remains a significant challenge. In his project, Best explores novel approaches for the labeling of lipid structures that will enable tracking of the identity and location of lipids in cells, with a focus on cancer cells. These strategies will significantly enhance our understanding of the biosynthesis and movement of important lipid molecules within their native cellular environments.

Filed Under: News

Campagna Honored at Annual Faculty Awards Banquet

December 16, 2016 by chemweb

hawn Campagna, associate professor, received the Interdepartmental Collaborative Scholarship and Research award for his work with Professors Helen Baghdoyan and Ralph Lydic in the Department of Psychology.Each year, faculty in the College of Arts and Sciences are recognized for their contributions to the college, the university, and the impact of their teaching and research at the annual faculty awards dinner. One member of the Department of Chemistry received an award at this year’s event, which took place Thursday, December 1, 2016.

Shawn Campagna, associate professor, received the Interdepartmental Collaborative Scholarship and Research award for his work with Professors Helen Baghdoyan and Ralph Lydic in the Department of Psychology.

The psychology/chemistry collaboration uses state-of-the-art chemical techniques to identify known and unknown brain molecules that regulate naturally-occurring and drug-induced states of consciousness. The long-range goal is to establish causal relationships between specific molecules and behavioral states and physiological traits. Their collaborative research will quantify the effect of different drug classes on different brain regions and further our basic science knowledge of brain function.

Congratulations to Professor Campagna on his achievement.

Filed Under: News

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Chemistry

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Email: chemistry@utk.edu

Phone: 865-974-3141

 

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Knoxville, Tennessee 37996
865-974-1000

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