News

Group Outing to McConnell’s Ice Cream for our Paper Celebration

May 26, 2023
group photo at an ice cream parlor
The Hamachi Group at McConnell's Ice Cream: Top (L-R): Dean Kim, Jeffrey Johnson, Brian Tinkle, Nathan Wong, Sachi Ottoes, Kyla Carlson; Front (L-R): Donna Tran, Alyssa Chew, Dr. Hamachi, Rebecca Winger


The Hamachi Group celebrated our recent publication on COF-300 colloid synthesis by going to McConnell’s Ice Cream. What a delicious treat! We are proud of the 7 undergraduate and 2 masters student coauthors who contributed to the research paper.

Jachin Clarke Present MATE Senior Projects at 2023 Tech Conference

May 19, 2023
Jachin Clarke
Jachin Clarke


We are proud of our senior Materials Engineering undergraduate student Jachin Clarke for presenting his Senior Project at the 2023 Tech Conference hosted by the Materials Engineering Department. Congratulations on completing this major milestone to finish off your undergraduate degree.

2023 Chemistry and Biochemistry Department Picnic

May 19, 2023
group photo at the chemistry department bbq
At the Chemistry and Biochemistry Department BBQ: (Left to Right) Dr. Hamachi, Olive, Brian, and Hannah


We had a great time at the 2023 Chemistry and Biochemistry Department Picnic!

Students Present at the 2023 COSAM Research Symposium

May 18, 2023
Cal Poly Learn by Doing
Cal Poly Learn by Doing Logo


Undergraduate students Sachi Ottoes (Chemistry), Alexis Mojica (Chemistry), Dean Kim (Biochemistry) and Kyla Carlson (Materials Engineering) presented posters at the Cal Poly’s College of Science and Mathematics (COSAM) research symposium. Thank you to Bill and Linda Frost and Sarepta Therapeutics for generously funding the 2023 COSAM Research Symposium!

Isabel Gamez presents at the Spring 2023 LASCT Meeting

May 11, 2023
Isabel Gamez
Isabel Gamez


Isabel Gamez (4+1 Materials Engineering/PCS MS student) presented about her research on incorporating dynamic covalent bonds in polyester wood coatings at the 2023 May LASCT meeting. Thank you to the Los Angeles Society for Coatings Technology (LASCT) for hosting a successful event.

New Spring Quarter 2023 Research Students

April 3, 2023
Spring 2023 Lab Photo
Spring 2023 Group Photo: Top (Left to Right): Kyle Wang, Kyla Carlson, Rebecca Winger, Brian Tinkle, Zoe Jackson Delos Angeles, Estela Osorio-Garcia; Bottom (Left to Right): Robert Orta, Dr. Hamachi, Nathan Wong, Hannah Negri, Isabel Gamez, Jachin Clarke, Eric Casey; Front: Olive Rosplock


In preparation for summer research, the group welcomes new students to the lab: Hayden Ankrum (Biochemistry ’25), Jeffrey Johnson (Biochemistry ’26), Olive Rosplock (Biochemistry ’26), Estela Osorio-Garcia (Biochemistry + Polymers and Coatings Science ’25), Zoe Jackson Delos Angeles (Materials Engineering ’25), Kyle Wang (Materials Engineering ’24), Nathan Wong (Materials Engineering ’24), and Brian Tinkle. We are excited to welcome you all to the team!

Bowling with Professors 2023

February 24, 2023
ACS Bowling
Hannah Negri (L) and Dr. Hamachi (R) at the ACS Club’s Bowling with Professors event


We had a blast at the Cal Poly ACS Club’s Bowling with Professors event at Mustang Lanes, our on-campus bowling alley. Thank you to the ACS Club members who organized this event!

Dr. Hamachi Presents at 35th Annual CSU Biotechnology Conference

January 14, 2023

On January 13th, Dr. Hamachi presented about the group’s work on Kombucha Leather at the 35th CSU Biotechnology Symposium in Santa Clara, CA as one of the invited Faculty Short Talks. Thank you to CSUPERB for our New Investigator Grant funding and to the conference organizers for the invitation!

New Research Student Starting Winter 2023

January 10, 2023
Eric Casey
Eric Casey


The Hamachi group welcomes one new research students for Winter quarter research! Welcome to Eric Casey (Materials Engineering). We are excited to have you join the team!

Manuel Huizar-Herrera, Dean Kim, and Isabel Gamez Awarded Scholarships

December 1, 2022

Congratulations to Manuel Huizar-Herrera for winning the CRGI Al Mordy Memorial Scholarship, to Dean Kim for winning the Brooke P. Mead and Rita P. Sayre Scholarship, and to Isabel Gamez for winning the Bill Moore Fellowship. We are very proud of your accomplishments!

New Research Students Starting Fall 2022

September 23, 2022
Fall 2022 Group Photo
Fall 2022 Researchers in the Hamachi Group: Top (L-R): Donna Tran, Alyssa Chew, Hannah Negri, Isabel Gamez; Front (L-R): Manuel Huizar, Sachi Ottoes, Chanh Lam, Kyla Carlson, Brandon Ngo, Dr. Hamachi


The Hamachi group welcomes 5 new research students for Fall quarter research! Welcome to Manuel Huizar (Chemistry), Hannah Negri (Chemistry), Jachin Clarke (4+1 Materials Engineering BS & Polymers and Coatings Science MS), Isabel Gamez (4+1 Materials Engineering BS & Polymers and Coatings Science MS), and Chanh Lam (Mechanical Engineering). We are excited to have you join the team!

Summer 2022 Research Concludes

August 17, 2022
Eating Korean BBQ
Eating Korean BBQ: (Left to Right) Dr. Hamachi, Alyssa Chew, Donna Tran, Dean Kim, Alexis Mojica, Kyla Carlson, Brandon Ngo


In recognition of everyone’s hard work this summer and contributions to the research group, we celebrated the end of summer research this year by going to Korean BBQ and more boba! What a tasty treat!

Group Photo Eating Boba
Group members enjoying a celebratory boba: (Left to Right) Dr. Hamachi, Donna Tran, Brandon Ngo, Alyssa Chew, Alexis Mojica, Dean Kim, Kyla Carlson

Alex Oanta Visits Cal Poly

August 15, 2022
Boba with the Speaker
At "Boba with the Speaker": (Left to Right) Dean Kim, Sydney Lee, Kyla Carlson, Alexis Mojica, and Alex Oanta


We had a blast attending Alex Oanta’s talk at Cal Poly on water purification with Covalent Organic Frameworks and what graduate school is like. Alex is a graduate student in the Dichtel Research Group at Northwestern University. Here is a picture of several Cal Poly students (including some students from the Hamachi group) with Alex at “Boba with the Speaker.”

Summer 2022 Frost Symposium

August 12, 2022
Cal Poly Logo
Cal Poly "Learn by Doing" Logo


We are proud of our summer researchers Kyla, Alyssa, Dean, Alexis, and Brandon for presenting three posters and two talks at the 2022 Frost Summer Research Symposium.

Thank you to the FROST fund and the CSU Program for Education & Research in Biotechnology (CSUPERB) for supporting our summer research students.

Summer 2022 Undergraduate Researchers

June 27, 2022
Cal Poly Logo
Cal Poly "Learn by Doing" Logo


This year’s summer undergraduate researchers are excited to learn some chemistry and materials engineering: Kyla Carlson (Materials Engineering), Alyssa Chew (Biochemistry), Brandon Ngo (Chemistry & Biological Sciences), Dean Kim (Biochemistry), and Alexis Mojica (Chemistry).

Thank you to the FROST fund and the CSU Program for Education & Research in Biotechnology (CSUPERB) for supporting our summer research students.

Hamachi Group Awarded ACS PRF UNI Grant

June 1, 2022

We are excited to announce the group has received an ACS PRF Undergraduate New Investigator Grant to fund our research. This will help provide new opportunities for Cal Poly undergraduate students to participate in research! A big thank you to the ACS PRF!

New Spring 2022 Quarter Researchers

May 29, 2022
Spring 2022 Group Photo
Spring 2022 Hamachi Group Photo: Back (Left to Right) Alexis Mojica, Daisy Kamp, Nathalie Silva, Donna Tran, Alyssa Chew; Middle (Left to Right) Manuel Huizar, Alison Chew, Kyla Carlson, André Lagron, Sachi Ottoes, Julie Hostetter; Front (Left to Right) Dr. Hamachi, Hannah Martin, Rebecca Winger, Brandon Ngo, Dean Kim


The Hamachi Group welcomes five new student researchers for Spring 2022: Kyla Carlson (MATE ’25), Rebecca Winger (MATE ’24), Julie Hostetter (PCS MS ’23), Alexis Mojica (CHEM ’25), and Nathalie Silva (MATE ’23). Welcome and can’t wait to have you join the team!

André Lagron wins Outstanding Graduate in Chemistry Award

May 18, 2022
Andre Lagron
André Lagron


Congratulations to senior undergraduate student André Lagron for winning the Outstanding Graduate in Chemistry Award at the Cal Poly College of Science and Mathematics’ College Awards Ceremony. We are so proud of André’s accomplishments and contributions to our research group!

2022 Chemistry and Biochemistry Department Picnic

May 14, 2022
Andre and Sachi at the Department BBQ
André and Sachi preparing/scooping liquid nitrogen ice cream at the Chemistry and Biochemistry department’s end of year BBQ/picnic


We had a great time at the 2022 Chemistry and Biochemistry Department Picnic. Thanks to André and Sachi for helping prepare liquid nitrogen ice cream for everyone!

Students Present at the 2022 COSAM Research Symposium

May 13, 2022
Cal Poly Logo
Cal Poly "Learn by Doing" Logo


Undergraduate students Alyssa Chew (Biochemistry) and Alison Chew (Materials Engineering/PCS MS) presented posters, and Donna Tran (Biochemistry) gave a research talk at the Cal Poly’s College of Science and Mathematics (COSAM) research symposium. Thank you to Bill and Linda Frost for generously funding the 2022 COSAM Research Symposium!

Addison Wolfson Presents at the 2022 LASCT Meeting

May 12, 2022
Addison Wolfson
Addison Wolfson


Addison Wolfson (4+1 Materials Engineering/PCS MS student) presented about his research on isocyanurate polymer synthesis at the 2022 May LASCT meeting. Thank you to the Los Angeles Society for Coatings Technology (LASCT) for hosting a successful event.

Pie-A-Professor 2022

May 5, 2022
Dr. Hamachi and Andre posing in front of the AXE Pie a Professor Sign
Dr. Hamachi and André were pied in the face at AXE’s 2022 Pie-A-Professor event


Cal Poly’s chemistry fraternity, Alpha Chi Sigma (AXE) hosted their annual Pie-A-Professor fundraiser. André won the raffle to pie Dr. Hamachi, and she got to “revenge pie” André back! Congratulations to AXE on hosting a successful fundraiser!

Alison Chew wins Outstanding Woman in Engineering Award

April 23, 2022
Alison Chew accepting Outstanding Woman Award on stage
Alison Chew wins the Outstanding Woman in Engineering award at the 2022 SWE Evening with Industry event.


Congratulations to Alison Chew (4+1 Materials Engineering/PCS MS student) for winning the Outstanding Woman in Engineering award representing Materials Engineering at the Society of Women Engineers (SWE)’s 2022 Evening with Industry event. Alison, we are so proud of you for being such a great role model for women engineers!

Group Outing to PCN 2022

April 22, 2022
Group photo at PCN
Group members attending PCN 2022: (Left to Right) Nathalie Silva, Alexis Mojica, Dr. Hamachi, Alison Chew


Group members attended the Cal Poly Pilipino Cultural Exchange’s Pilipino Cultural Night (PCN) to see senior lab member Daisy Kamp perform a traditional cultural dance called Tinikling.

Volunteering at Cal Poly’s 2022 Open House

April 9, 2022
Group photo volunteering at Open House
Volunteering at the Chemistry “un-Magic” Show: (Left to Right) Dean Kim, Donna Tran, Alyssa Chew, Dr. Hamachi, Brandon Ngo


The Hamachi Group volunteered to lead a “Chemistry un-Magic Show” at Cal Poly’s 2022 Open House for newly admitted students and their families. Magicians never tell their secrets, but as scientists we do! Welcome to the newest Mustangs and we hope this may have sparked your interest in chemistry!

Spring 2022 American Chemical Society Meeting

March 17, 2022

The Hamachi Group goes to the Spring 2022 American Chemical Society Meeting in San Diego, CA. Undergraduate students Dean Kim and Donna Tran presented posters, and André Lagron gave a talk on their research. Here are a few photos of us enjoying the conference:

Group Photo with Prof. Dichtel
Meeting Dr. Hamachi’s postdoc advisor Prof. Dichtel from Northwestern University: (Left to Right) Donna Tran, Dean Kim, Prof. Will Dichtel, Alison Chew, André Lagron



Group Photo with the Miller Group
Hanging out with new friends from Prof. Kathryn Allen’s group at Millersville University: (Left to Right) Amanda McKee, Dean Kim, Donna Tran, Landon Kurtz, Alison Chew

Alison Chew Wins Graduate Conference Award

February 15, 2022

Congratulations to Alison Chew for winning a Graduate Conference Award from Cal Poly to attend the Spring American Chemical Society Meeting in San Diego. Thank you to Cal Poly for your support of student researchers!

New Student Researchers for Winter 2022

January 3, 2022

The Hamachi group welcomes new student researchers Alyssa Chew (Biochemistry) and Addison Wolfson (PCS MS) to the team. We can’t wait to do science with you this quarter!

Alison Chew Wins Poster Award at 2021 Western Coatings Symposium

October 20, 2021
Group Photo at the Western Coatings Symposium
Group Photo at the 2021 Western Coatings Symposium: (Right to Left) Kathryn Lee, Sachi Ottoes, Alison Chew, André Lagron


Senior chemistry major André Lagron gave an invited student talk and poster on their work titled “Recycling Isocyanurates via Dynamic Covalent Bonding.” Senior materials engineering major Alison Chew presented a poster on “Particle Size Control of Colloidally Synthesized COF-300 Pigments.” Congratulations to Alison for winning first place in the student poster competition! Thank you to WCS for the opportunity to present this work and to the William and Linda Frost Fund and the Golden Gate Society for Coatings Technology for helping fund this summer research!

New Fall 2021 Researchers Hannah Martin and Kyle Hoff

September 20, 2021

The Hamachi Group welcomes 4th year Materials Engineering undergraduate student Hannah Martin and Polymers and Coatings Science (4+1) masters student, Kyle Hoff (Materials Engineering with a minor in Entrepreneurship), who are joining the Hamachi Group for fall quarter research. We are excited to have you both join the team.

Summer 2021 Research Concludes

August 17, 2021
Summer Lab Dinner
Taco Tuesday: (Left to Right) André Lagron, Dr. Hamachi, Brandon Ngo, Ethan Nogle, Sachi Ottoes, Alison Chew)


In recognition of everyone’s hard work this summer and contributions to the research group, we celebrated the end of summer research this year with a Taco Tuesday and ice cream! What a tasty treat!

New Summer 2021 Undergraduate Researchers

June 21, 2021

Welcome to three new undergraduate students joining the Hamachi Group for summer research: Alison Chew (Materials Engineering), Brandon Ngo (Chemistry & Biological Sciences), and Ethan Nogle (Chemistry). We are excited to have you join the team.

Thank you to the FROST fund, the CSU Program for Education & Research in Biotechnology (CSUPERB), and the Golden Gate Society for Coatings Technology (GGSCT) for supporting our summer research students.

Brendan Posson Defends Masters Thesis

May 28, 2021
Group Photo on Baker Lawn for Brendan's Thesis Defense Celebration
Brendan’s post-defense celebration: (Left to Right) Kathryn Lee, Amanda Tsai, André Lagron, Brendan Posson, Donna Tran, Dean Kim, Dr. Hamachi


Congratulations to Brendan Posson for successfully defending his Masters Thesis in the Polymers and Coatings Science MS program. Brendan will be starting a position at Carlisle Construction Materials as an R&D Thermoplastics Chemist! Best of luck in your new position.

New Spring Quarter 2021 Researchers

March 29, 2021

Welcome to three new undergraduate students joining the Hamachi Group for spring quarter research: Donna Tran (Biochemistry), Daisy Kamp (Materials Engineering), and Sachi Ottoes (Chemistry). We are excited to have you join the team.

Brendan Posson wins Bill Moore Fellowship

January 19, 2021
Brendan Posson
Brendan Posson


Congratulations to masters student Brendan Posson for winning the Bill Moore Fellowship . We are very proud of Brendan and his accomplishments!

Dean Kim Joins Hamachi Group

January 4, 2021
Dean Kim
Dean Kim


Welcome to undergraduate student Dean Kim, joining the Hamachi Group in winter quarter 2021.

Brendan Posson wins Dave Kittredge Scholarship

October 1, 2020
Brendan Posson
Brendan Posson


Congratulations to masters student Brendan Posson for winning the Dave Kittredge Scholarship from the Los Angeles Society for Coatings and Technology (LASCT). Thank you LASCT for your generosity.

Kathryn Lee Awarded Graduate Assistant position

September 21, 2020
Kathryn Lee
Kathryn Lee


Congratulations to masters student Kathryn Lee for being awarded a Graduate Assistant position for the 2020-2021 academic year. Thank you Cal Poly for your support of student research.

First Students Join the Group

September 11, 2020

The Hamachi Group welcomes its inaugural class of research students for the fall quarter: André Lagron (chemistry), Kathryn Lee (polymers and coatings science), Brendan Posson (polymers and coatings science), and Amanda Tsai (materials engineering).