Here鈥檚 the third installment of our series that profiles, in images and words, each and every resident of 乐播传媒鈥� newest academic building, Bonney Science Center, as they begin to engage with their wondrous new home and the students they work with. This week鈥檚 profiles feature:
- Geneva Laurita, an assistant professor of chemistry and biochemistry who takes advantage of all that whiteboard space;
- Jonathan Witt, a stockroom manager and safety technician, who is the college’s official “chemical hygiene officer;” and
- Lorna Clark, an assistant in instruction, who works closely with students and the laboratory equipment she trains them to use.
Geneva Laurita
Title: Assistant Professor of Chemistry and Biochemistry
Joined 乐播传媒: 2017
Date Photographed: Oct. 12, 2021
She says: 鈥淭he new layout and upgraded spaces are allowing my lab to branch out into new directions that were previously limited.鈥�
Touch your hand to almost any wall in one of Bonney’s hallways, classrooms, offices or lab, and you’ll mostly be touching whiteboard or pinboard.
Sure, there鈥檚 traditional sheetrock, but the amount of wall space devoted supporting communication feels distinctive, and totally in keeping with the mission of the building to elevate the capacity of 乐播传媒 folks to exchange ideas, create knowledge, and foster community.
Early one afternoon last October, during a class session for the course “Advanced Topics in Inorganic Chemistry,” Assistant Professor of Chemistry and Biochemistry Geneva Laurita used the expanse of whiteboard and a projector during one lesson.
A solid-state chemist, Laurita鈥檚 research concentrates on materials with energy and electronic applications. Considering her new lab in Bonney, she says that 鈥渢he layout and improved space are allowing my lab to branch out into new directions that were previously limited.
Her lab explores, as she once said, 鈥渨hat the structure of a material is, how atoms interact with one another, and how does that give rise to physical properties 鈥� for example, how does it conduct electricity or interact with light?”
Which brings us to ion conductors, the topic of Laurita’s October lesson. While maintaining their solid state, ion conductors have near-magical properties: allowing ions 鈥� atoms or molecules that have an electric charge due to the loss or gain of one or more electrons 鈥� to move through them. This flow-through capacity is the basis for how a lithium-ion battery works, among other applications.
During this lesson, Laurita and her students made observations on materials and consulted the scientific literature to develop a set of principles that could be used to design high-performing ion conductors for battery applications.
鈥淔or this class in particular, we took advantage of the 360-degree whiteboards to compile all their findings,鈥� she says. 鈥淔rom that, we were easily able to use the collective knowledge of the class to come up with our 鈥榞uiding principles鈥� for new battery materials.鈥�
The other day, we saw three students working together in one of the otherwise empty classrooms. The whiteboards are sure convenient when it comes to studying, one said. “When you fill up one section, you just move to the next.”
Jonathan Witt
Title: Stockroom Manager and Safety Technician
Joined 乐播传媒: 2019
Date Photographed: Nov. 4, 2021, and Feb. 8, 2022
He says: 鈥淚f we have it, don’t order it.鈥�
鈥淐hemists used to die young,鈥� says Jonathan Witt, noting the goal of one half of his job title, safety technician for the natural sciences at 乐播传媒, including the work done by chemists, biochemists, biologists, and neuroscientists in Bonney Science Center.
We were talking about how, in the late 19th and early 20th century, chemists had a cavalier attitude toward the dangerous chemicals in their labs, touching, smelling, and tasting them. And they smoked in their labs. All of which led to early, and sometimes explosive, deaths for more than a few.
Today, Witt and others at 乐播传媒 follow a range of laws by and other federal agencies, including the Environmental Protection Agency, to keep 乐播传媒 science labs safe. In OSHA terms, Witt is the college鈥檚 鈥渃hemical hygiene officer.鈥� In other words, he says dryly, 鈥淚 do a bunch of safety stuff with chemicals.鈥�
The other half of Witt鈥檚 job is stockroom manager, overseeing the science center鈥檚 storage of various chemicals 鈥� H2NC6H4CO2H anyone? 鈥� and lab equipment, from pipettes and petri dishes to test tubes and beakers and other glassware. (That chemical is aminobenzoic acid, an organic compound.)
In Bonney, Witt showed us how flammable chemicals have their own room that is its own 鈥渃ontrol area鈥� with fire-rated walls and floors. Special lockers keep dangerous and 鈥渘asty鈥� acids locked away. All the other chemicals are stored in their own room.
The equipment stockroom has storage space in the center, seven shelving units 鈥� the space-saving, sliding kind like in a library 鈥� and shelves, cabinets, and drawers along the room鈥檚 periphery. There鈥檚 a lot there. But there used to be more. Way more.
乐播传媒鈥� first dedicated space for science was John Bertram Hall and then, in succession, Hedge Hall, Carnegie Science Hall, and Dana Chemistry Hall. Over the years, Dana became like grandma鈥檚 old house, filled with an accumulation of equipment and chemicals. Witt and others are pretty convinced that some items simply got moved from space to space over the last century and a half.
And when faculty members left the college, materials specific to their work often were left behind 鈥渁nd just sort of became part of the collection鈥� in Dana, Witt says. 鈥淏ut often what they were doing was very esoteric or unique to them.鈥�
After a years-long inventory of Dana鈥檚 contents, 乐播传媒 executed a plan for the safe disposition of all the unneeded supplies and equipment. Lesson learned, says Witt: No more pack rats. 鈥淥ur approach now is to get rid of things that aren鈥檛 needed.鈥�
And going forward, when it comes to purchasing equipment or chemicals, 鈥渋f we have it, don’t order it. Try to make sure that we’re not ordering excessive amounts of things. Because all that means is we eventually might have to pay for that to get decommissioned.鈥�
Lorna Clark
Title: Assistant in Instruction
Joined 乐播传媒: 1991
Date Photographed: Nov. 4, 2021
She says: 鈥淏eing close by is a big part of the job鈥�
As an assistant in instruction in the Department of Chemistry and Biochemistry, Lorna Clark spends much of her days in Bonney Science Center close to students and the scientific equipment that she trains them to use.
鈥淏eing close by is a big part of the job,鈥� she says.
One morning in early November, Clark had an attentive group of 19 orgo students getting ready for the experiment of the day, a continuation of a lesson on how to isolate and purify clove oil.
As Clark鈥檚 students prepared for their experiment, the lab鈥檚 teaching assistant, Casey Winter 鈥�23 of Malvern, Pa., checked with Clark about the air-flow monitor on the exhaust hood. 鈥淚f the monitor reads zero鈥� 鈥� meaning there鈥檚 no flow of air to remove fumes 鈥� 鈥渢here鈥檚 a problem,鈥� said Clark.
During the experiment, the students used separatory funnels. This piece of lab glassware, which looks like an upside down teardrop, is used to separate 鈥渋mmiscible鈥� liquids, like oil and water. On this day they were working to purify eugenol, which had been separated from caryophyllene and humulene. 鈥淎ll three of these compounds are found in clove oil,鈥� Clark explains.
Clark鈥檚 primary job is to get students ready and then instruct them during the department鈥檚 organic chemistry lab sessions. Clark has been at 乐播传媒 for 31 years, but the cohort she works with stays the same. 鈥淚t鈥檚 still such a great age. I love working with these students.鈥�
Clark also maintains some of the major instrumentation in the department, such as the NMR spectrometers. In Bonney, the NMR is conveniently more close to the organic teaching lab. When the labs were back in Dana Chemistry Hall, the NMR was 鈥渙ne floor down behind a locked door. Students submitted samples to a rack and a TA ran them.鈥�
Which meant that the NMR was 鈥渁 black box to the students. Now, 鈥渟tudents can submit their own sample directly to the NMR autosampler.鈥�
Another nifty new feature in Bonney鈥檚 organic chemistry lab space are desktop computers, allowing the students to keep electronic notebooks to submit to Clark after a lab, rather than hand-written ones.
But old-school notebooks are still in play in various research labs, as is the value of learning to imagine and hand-draw the invisible molecular, atomic, and subatomic particles that students learn all about.
鈥淭here’s a lot to be said for learning to draw in organic chemistry, like learning how to draw compounds,鈥� Clark says. 鈥淚f you just cut and paste it, you don’t learn it!鈥�
