Unit Members
Professor
Amy Shen
In 2014, I moved from University of Washington to start my new lab at OIST on micro- and bio-fluidics, and anything squishy! Outside work I enjoy the beach, yoga, and exploring/learning more about Okinawa, a perfect work and living paradise. If you are interested in working with us, feel free to contact me or any unit members.
Group Leader
Simon Haward
I completed my Ph.D in Physics in 2002 under the supervision of Dr. Jeff Odell from the University of Bristol (UK) and Prof. Alejandro Muller from Simon Bolivar University (Venezuela). Following postdoctoral research positions first at Bristol, then at MIT with Prof. Gareth McKinley, I obtained a Marie Curie International Research Fellowship which I carried out at the University of Porto (Portugal). I joined OIST as Group Leader for the Micro/Bio/Nanofluidics (Shen) Unit in September 2014. Away from the lab, my main activity is road cycling. In Okinawa I’m also keen to take up sea kayaking and scuba diving.
Postdoctoral Scholars
Mark Sullivan
After a career in industry (as an analytical chemist) and teaching (ages 11-18), I completed my PhD in Molecularly Imprinted Polymers in 2019 from the University of Central Lancashire (UK) under the guidance of Prof. Sub. Reddy and Dr. Joe Hayes. I then moved to De Montfort University (UK) to complete my first post-doctoral project, under Prof. Nick Tuner, on aptamer-molecularly imprinted nanoparticle hybrids, before moving to the University of Sheffield with Prof. Nick Turner for a second post-doc. My main research is to develop new synthetic recognition materials as alternatives to antibodies. I joined OIST and the Micro/Bio/Nanofluidics (Shen Unit) in May 2024, to develop new materials for biosensing and diagnostics. Away from the lab, I enjoy running, cycling, and board sports. I currently have a sponsorship for a UK electric skateboard company to race boards for them, and was rank 3rd Master at the 2023 World Championships (France).
Perrine Lasserre
After a biotechnology engineering master in France, I spent two years in Ireland building analytical chemistry skills in the drug discovery field from marine invertebrates. Next, the focus of my PhD at the University of Strathclyde (UK) with Prof. Damion Corrigan was on developing electrochemical-based biosensors to detect antibiotics and antibiotic susceptibility. I then moved to the University of Sheffield in Prof. Nick Turner's group to monitor oral cancer biomarkers using molecularly imprinted polymers and returned to the University of Strathclyde to become more familiar with solid state nanopores, each for 9 months. Research interests at OIST include expanding multidisciplinary knowledge by learning more techniques to complement each other or merge them together, ideally with higher throughput, in the biosensing field. In my free time, I enjoy exploring in various forms such as walking/hiking, running, travelling, cooking or connecting with people.
Rui Luo
My academic journey began in Xi'an, China, where I earned a Bachelor's in Energy and Power Engineering from Xi'an Jiaotong University. Later, I relocated to the United States to pursue a Ph.D. in Mechanical Engineering at the University of Minnesota under the guidance of Prof. Sungyon Lee. My doctoral research focused on instabilities in confined suspension flows, investigating phenomena such as particle-induced viscous fingering and interfacial particle accumulation experimentally and theoretically. Since 2022, I have been a Postdoctoral Researcher in the Department of Engineering Science and Applied Mathematics at Northwestern University, working with Prof. Petia Vlahovska. My current work explores the collective dynamics of colloidal particles under electric fields and the emergence of turbulent-like flows in dense active suspensions.I am excited to join the OIST MBN Unit to leverage its renowned expertise in microfluidics and viscoelastic fluids. My goal is to expand my research into the transport phenomena of complex and active fluids within porous media. Outside of work, I enjoy gym training and look forward to trying Okinawa's foods and water sports.
Vivaswan Chandrashekar
Fresh from the PhD kiln, I am interested in scrutinising viscoelastic and complex fluid flows in complex geometries using a combination of microfluidic experiments and numerical simulations. I defended my doctoral thesis on viscoelastic flows in November of 2025 in University of Grenoble-Alpes. I have a Master's degree in Material Science through an Erasmus Mundus programme which spanned across Ludwig Maximilian University of Munich, University of Turin, and University of Rennes. My Master thesis project was in transport and stability of foams. Before that, I graduated with my bachelor's degree from Azim Premji University in Bangalore, where I defended my honours thesis on interfacial phenomenon in liquid crystal droplets suspended in micellar solutions. Meanwhile, on my time off, I watch films (I've also written/made a few short ones), play games on my PC (which I built), read non-fiction, and go for strolls.
Research Technicians
Kazumi Toda-Peters
I am originally from Seattle where I received my undergraduate degree in Applied and Computational Mathematical Sciences from the University of Washington. Although my background is in math I am fascinated with the more tangible sciences. I recently moved to Okinawa from Hawaii and I brought a few ukuleles with me. I have a wide range of artistic and physical hobbies but my favorites are woodcarving, hiking/camping, snorkeling, bicycling, music, chess, traveling and general goofiness. OIST is quite an amazing place and I am grateful to be here.
Ph.D. Students
Fabian Hillebrand
I received my BSc and MSc degrees at ETH in Zurich studying Computational Science and Engineering, specializing in (computational) chemistry and physics, respectively. After joining OIST remotely in September 2021, my interest in fluid mechanics started to grow as well as my interest in experiments. I am particularly interested in viscoelastic instabilities and elastic turbulence. Outside of work, I enjoy hiking but still have to get used to the weather in Okinawa.
Jiangming Wu
I completed my BEng degree in Xi’an Jiaotong University in China, mainly studying thermal fluid and droplet dynamics. Then I joined OIST remotely as a PhD student in January 2022. Now I am doing my second rotation here and will join this unit for my thesis research from January 2023. My rotation project is about colloidal alignment, a relatively new topic for me. I really enjoy this learning process and exploring many possibilities of my future research topics with all the other fantastic group members. Outside work, I enjoy reading, photography, playing games and exploring the island. Okinawa is such an interesting place that just walking around randomly or simply enjoying the beautiful ocean view can make me very happy. I also want to try various sea sports, but I guess I have to learn how to swim first.
Arisa Yokokoji
I received my BSc degree in Chemistry and MSc degree in Macromolecular science under the supervision of Prof. Tadashi Inoue from Osaka University in Japan.
I visited Shen unit twice as an intern student (2020 September - December and 2021 July - October). And I got interested in microfluidics during these internships, so I decided to join this unit as a PhD student. My research interests are elastic flow instability and the interaction between flow and geometry. Besides the research, I will enjoy exploring Okinawa and the world.
Mauricio Andres Rios Maciel
I completed both my B.Sc and M. Sc in Biotechnology at ITESM in Mexico City, where I focused on studying hydrogel-based extracellular matrixes and cell culture on-a-chip. Following my interest on microfluidics I joined for an internship at Shen Unit where I further developed my scientific interests. After this, I decided to join OIST and after my rotations I joined the unit as a PhD student. My research interests are the study of biophysical properties of biological complex fluids and their response to environmental factors. Outside work I like working out, cooking, watching anime and going to concerts.
Tamara Iakimova
I have completed my BSc and MSc in Lomonosov MSU, Russia, in material science department, with my research work mainly focused on liposomal drug delivery systems. During my internship at OIST I was impressed a lot by a versatile research options and international community, and I am really grateful for being here as a graduate student now. My first project in Shen Unit was on the 3D-printed surface imprinted polymers as biosensors for bacteria, and now I’m interested in organ-on-a-chip systems for my PhD project. Besides the research I love exploring this beautiful tropical island and gorgeous Japan, as well as enjoying TV shows, movies, embroidery and well written books in English and Russian.
Teresa Bosch Tamayo
I am Spanish-Mexican, but I lived all my life in the Netherlands while following French education from elementary to high school (simple as that!). I have a BSc and MSc in Molecular Life Sciences from Wageningen University & Research, where I specialized in Physical Chemistry. I have previously worked on nanoparticle-based delivery systems for transient gene transfection in plant cells. I have first joined the Micro/Bio/Nanofluidics (Shen) unit for a rotation, where I helped in the chemical characterization of biological complex fluids. For my PhD at Shen unit, I will focus on developing novel polymer-based recognition materials for biosensing applications. Outside of research, you can find me drawing, going snorkeling, or compulsively buying too many plants.
Shunsuke Ono
I am from Tottori, Japan and got my BSc in biology in the University of Tokyo. I developed an molecular detecting system using solid-state nanopore as my undergraduate research. I am interested in laboratory automation systems for biological experiments and want to use microfluidic devices for them in my PhD. Outside of work, I like to explore Yambaru to see the grate Okinawa nature.
Research Interns
Francesca Sama
I am a PhD student in Photonic Sensing at Scuola Superiore Sant’Anna in Pisa, Italy. After completing a BSc in Mathematics, I moved to Mathematical Engineering to pursue more application-oriented research, motivated by a strong interest in medical and biomedical applications. I later worked as a research fellow at Sant’Anna for seven months on photonic sensor development before starting my PhD.
I joined the Micro/Bio/Nanofluidics (Shen) Unit at OIST for a six-month internship from January to June to develop nanoMIPs and investigate their use as a functionalization approach for photonic biosensors.
In my free time, I enjoy reading and playing tennis and futsal.
Nolan Andrew Miller
I completed my B.S. in Material Science & Engineering from Purdue University where I studied thin film mechanics of cellulose nanocrystals under the guidance of Prof. Chelsea Davis. Inspired by the materials of the natural world, I pursued a Ph.D. in Polymer Science & Engineering from the University of Massachusetts Amherst under the advisement of Prof. Al Crosby. My doctoral research focused on poroelasticity and high-acceleration snap-through actuation in swollen soft beams, exploring how solvent transport and structural instabilities can be harnessed for rapid, autonomous motion in compliant systems. I also designed and built a temperature-controlled vacuum chamber to study lap shear adhesion in space-like environments.
I joined the Shen unit to explore microfluidics and study the properties of viscoelastic fluids. Outside the lab, I enjoy caring for a variety of plants, gaming with my friends, solving puzzles, and exploring the natural world.
Francessca Louise Charlton
I’m from Newcastle, England and in 2023 I completed my Master’s degree in Biomedical Engineering at the University of Strathclyde in Glasgow, Scotland. I am currently in the final year of my PhD in Pure and Applied Chemistry at Strathclyde. My research interests include electrochemical biosensing, wearable sensing, and developing polymeric materials for versatile bioelectronics applications. I am excited to work in Prof. Amy Shen’s unit to develop molecularly imprinted polymers for the detection of disease biomarkers using electrochemical platforms.
Hwa-Jin Kwak
I completed my Bachelor's in Mechanical Engineering from the University of Hawaii at Manoa in 2025. Through my various research experiences, I have developed an interest in biomarkers and biosensing and am excited to broaden my knowledge during my time here! In my free time, I enjoy playing games, being crafty, taking walks, and collecting cute items.
Research Administrator
Hiromu Josha
I am originally from the heart of Tokyo, and I got my bachelor’s in sociology in Canada. I am super grateful to work under Prof. Amy Shen and be part of such a diverse unit. Outside work, I love dancing classical ballet, working out, Pilates, scuba diving etc!
