Physics dissertation defense of Dominic Guana: Generation of a zeroth-order elliptical beam with deformable annular slit

by Quirino Sugon Jr

The Department of Physics of the School of Science and Engineering of Ateneo de Manila University cordially invites you to a Ph.D. in Physics Dissertation Defense by Dominic P. Guana on Wednesday, November 6, 2019, 5:30 PM at Faura Hall, Room F-106. His dissertation is entitled, “Generation of a Zeroth-order Elliptical Bessel Beam with a Deformable Annular Slit,” under the supervision of Raphael A. Guerrero, Ph.D. His dissertation panel members are Dr. Alvie Astronomo (Philippine Nuclear Research Institute), Dr. Marienette Vega (UP Diliman), Dr. Jose Mario Diaz (Chemistry), and Dr. Ramon Delos Santos (Physics).

Abstract. Elliptical Bessel beams are produced from an elastomeric annular slit under applied strain. Generated beams are observed to possess a self-healing property and are quasi-resilient to diffraction in the far-field. A Fourier transform approach effectively predicts the elliptical Bessel beam profile for large propagation distances. The results obtained in this study could potentially contribute to advancements in atom optics, matter-wave microscopy, ultrafast volume structuring and quantum communications.

BS Physics-MSE student Aliena Miranda of AdMU receives award at MSE Summit 2018 research fair in UP Diliman

ateneophysicsnews_aliena_miranda_mse_summit_20180417

Aliena Mari P. Miranda (BS Applied Physics-Materials Science Engineering, 2nd from the left) during the awarding ceremonies at the Materials Science & Engineering Summit 2018 at University of the Philippines-Diliman

by Quirino Sugon Jr.

Aliena Mari P. Miranda (5 BS Applied Physics with Materials Science Engineering) of Ateneo de Manila University was awarded Best in Oral Presentation (undergraduate cluster) at the Materials Science and Engineering Summit 2018 Research Fair held last 16-17 March 2018 at the Engineering Theater of the University of the Philippines-Diliman. Miranda’s research was entitled, “Green synthesis of Fe2O3/graphene and MnO2/graphene nanocomposites for supercapacitor electrodes,” under the supervision of Dr. Erwin P. Enriquez of the Department of Chemistry of Ateneo de Manila University. Of the five participants in the Research Fair,  four are from Ateneo de Manila University. The two-day summit, with the theme “Sinagtala: A Focus on the Innovations of Philippine Materials,” has four events: Olympiad, ProdExpo, Career talks, and Research Fair.

Below is an interview with Aliena Mari P. Miranda by Ateneo Physics News:

1. How did you arrive at Ateneo de Manila University from high school?

I’m from Pasig City Science High School. I entered the Applied Physics/MSE program because I was interested in working on nanotechnology. Studying in a science high school helped cultivate my interest in the sciences, and luckily I was granted a scholarship to the Ateneo so I could pursue this interest.

2. What is the significance of your research?

With rampant pollution and limited resources, there is high interest in producing energy storage using environmentally-friendly methods and abundant materials. One device of interest is the supercapacitor, which, unlike the conventional dielectric capacitor, makes use of an electrolyte separated by a porous membrane. The electrodes have to be conductive, and have to have a high surface area to increase the energy it stores. Metal oxides such as iron oxide and manganese oxide have high specific capacitances but they suffer from low conductivity and low surface area. To address this, these metal oxides can be deposited in nanoparticle form onto graphene to increase their surface area and conductivity. The research shows that effective supercapacitor electrodes made of metal oxide-graphene nanocomposites can be created using green synthesis methods such as direct exfoliation and microwave-assisted hydrothermal synthesis, addressing the need to replace energy-intensive methods and toxic reagents. It also shows that iron oxide and manganese oxide increase the specific capacitance of graphene as the nanocomposites had higher specific capacitances compared to plain graphene.

3. Is this research a continuation of your BS Applied Physics thesis?

This research isn’t a continuation of my BS Applied Physics thesis, so the toughest part was getting used to the lab protocols for working in a chemistry laboratory. Working in a chemistry laboratory taught me to be more meticulous with my work especially since the reagents and tools we were using could be expensive.

I did my Applied Physics thesis under Dr. Christian Mahinay at the Vacuum Coating and Plasma laboratory where I worked on the characterization of DC-magnetron argon plasma using a Langmuir probe that I designed. I decided to start a different study for my MSE thesis because I was interested in Dr. Enriquez’s work on supercapacitors. Luckily, Mark Cabello, a previous graduate student, had been working on creating metal oxide graphene nanocomposites but they were designed for dye-sensitized solar cells, so Dr. Enriquez advised me to work from there to develop supercapacitor electrodes.

4. What motivated you to join the contest?

I was motivated to join the contest because my friends and I joined the quiz bee in the same summit two years ago. Our professor in an MSE class, Dr. Jose Mario A. Diaz, told us we’d get bonus points if we won the quiz bee. Unfortunately, we didn’t win then, so I kept my eye on the summit and decided my MSE thesis was good material for the research fair. A block mate, and an org mate joined the research fair as well so we cheered for each other during the oral presentations.

Students should be encouraged to talk about their work with others so that they can get feedback from people other than their peers and teachers in their school. We got to interact with students from different universities and learn about their work, and it helped build this sense of community knowing that science is alive and well all around the country, although it could be better if more support was given and more resources were shared. One of the professors commented that I could approach them to use their facilities since I was having difficulties with characterization. Events like this MSE Summit gives me hope that science can flourish as a field in the Philippines.

5. Were you able to make it to the BPI-DOST awards?

Yes, I am one of the two awardees from the Ateneo to the BPI-DOST Science Awards. They decided to cut the nominees from three last year down to just two this year so the competition was tougher. I thought I wouldn’t make it because one of the panelists commented he didn’t understand my methodology, but somehow it worked out in the end. The results have not been announced online but we were emailed letters last week. The other awardee is Kariz Bautista, a fourth year BS Chemistry/MSE student who worked on modified nanocellulose derived from hyacinths under Dr. Jose Mario Diaz. The awarding ceremony is on 5 June 2018.

6. What are your future plans in 5 years?

I’m currently waiting for the results of my application for the Japanese Government (MEXT) Scholarship. My blockmate and I have passed the second screening, which was under the university we’re applying to, and now we’re waiting for the results of the third screening under the Japanese Government. In the meantime, I plan to finish my reading list and pick up a few online classes. If I don’t get into the scholarship, I plan on working in the construction industry.

7. Was your paper already published?

No, my paper has not been published yet. I haven’t had the time to make my work suitable for publication, and there’s still a lot to do.

8. Any parting words?

Getting started seems tough but it’s a crucial step. Don’t let your inhibitions get the best of you. I started studying physics not really knowing what I got myself into, but I braced myself for the ride. I can’t say I’ve always been passionate for physics, but sometimes you just have to grit your teeth and work through it.

ateneophysicsnews_aliena_miranda_up_mse_summit_2018_award

Certificate of Recognition of Aliena Mari P. Miranda for winning the Best in Oral Presentation (Undergraduate Cluster) at the MSE Summit 2018 Research Fair in University of the Philippines-Diliman last 16-17 March 2018.

Erasmus+ ARTIST project for science teaching innovation at AdMU: An interview with Mr. Ivan Culaba of the Physics Department

artist-group

The ARTIST partners during the kick-off meeting at University of Bremen, Bremen, Germany on January 2017. In the photo are Dr. Joel Maquiling (back row, 3rd from the left) and Mr. Ivan Culaba (back row, 2nd from the right) of the Department of Physics, School of Science and Engineering, Ateneo de Manila University. Source: Action Research To Innovate Science Teaching (ARTIST)

by Quirino Sugon Jr

Ateneo de Manila University and De La Salle University-Manila were chosen by the European Union’s Erasmus+ Program as its two partner universities in the Philippines for the ARTIST (Action Research To Innovate Science Teaching) project. The other eight partner universities are University of Bremen (Germany), Ilia State University (Georgia), Alpe-Adria-University (Austria), University of Limerick (Ireland), Gazi University (Turkey), Batumi Shota Rustaveli State University (Georgia), The Academic Arab College of Education (Israel), and Oranim Academic College of Education (Israel). The project coordinators are Prof. Dr. Ingo Eilks of the University of Bremen and Prof. Dr. Marika Kapanadze of Ilia State University.

The ARTIST project aims to innovate science education through classroom‐based and teacher‐driven Action Research–a cycle of innovation, research, reflection and improvement–by forming networks of higher education institutions, schools and industry partners in each partner country. The ARTIST project allows the partner universities to acquire state-of-the art audio-visual and science equipment for teacher trainings and instructions. Training materials on action research will be developed and used in workshops and courses.

Below is an interview with Mr. Ivan Culaba, manager of the ARTIST project in Ateneo de Manila University.

1. What is your role in the project?  Are there other AdMU faculty involved here? 

I am the manager of the ARTIST project in Ateneo. In the Department of Physics, Dr. Joel T. Maquiling and Ms. Johanna Mae M.  Indias are also involved in the project. Joel has accompanied me in the meetings and helped in the presentations. Joel and Johanna helped in the identification of possible industry partners. Johanna also visited the high schools for evaluation as possible network partners. Ms. Via Lereinne B. Chuavon of the Office of Social Concern and Involvement assisted us in the networking with high schools and communications with the Schools Division Office of Marikina City. I also had very constructive discussions with Mr. Christopher Peabody of the Department of Chemistry. Mr. Tirso U. Raza, of the Office of Facilities and Sustainability has assisted us in finding the source of the audio visual equipment and in the preparation of the rooms for their installation. Our technicians, Mr, Numeriano Melaya, Mr. Colombo Enaje, Jr. and Mr. Ruel Agas have been working on making the ADMU ARTIST Network Center and Physics Education Resource Center (F-230, Faura Hall) become functional.

 

ateneophysicsnews_ARTIST_lecture_20170407

Action Research for the Reflective Practitioner workshop at Ateneo de Manila University, 7 April 2017

3. How did you get involved in the project?

 

This project was conceived by Prof. Eilks and Prof. Kapanadze after their successful implementation of TEMPUS project SALiS. I met Prof. Kanapadze during the Active Learning in Optics and Photonics workshop at Ilia State University, Tbilisi, Georgia in 2014, where she was the organizer. She invited me into the ARTIST project and I extended the same invitation to Dr. Lydia Roleda of the De La Salle University-Manila.

I became interested in the ARTIST project since we had just started with the NSTP activity wherein our Physics majors were assigned to Sta. Elena High School for the area engagements. While our students were facilitating in the high school students’ physics activities we were also engaged in the Physics training of the science teachers in the same school. We thought that the high schools would immensely benefit from the ARTIST project in line with the university’s thrust for greater social involvement and service learning.

The ARTIST project was approved by the EU commission on October 2016 but the first tranche of the budget was released on January 2017.

4. What were your ARTIST meetings in Europe all about? 

The kick-off meeting was held at the University of Bremen, Bremen, Germany on 18-20 January 2017. It was the first time that we met our collaborators in the project. The objectives of the project, deliverables, work plans, and financial management among other topics were discussed. The second meeting was held at the Alpen-Adria-Universität Klagenfurt, Vienna, Austria on 14-15 September 2017. Progress reports on the networking with schools and industries, financial status of each partner university, scheduling of the workshops, planning of the e-journal ARISE and other matters were discussed in the meeting. The EU officials were not present in the meeting.

ateneophysicsnews_physics_education_resource_center_20180410

Physics Education Resource Center (PERC) and ARTIST Network office Room F-230, Faura Hall

5. How is the Physics Education Resource Center in Faura Hall?  

I am very happy that we now have a Physics Education Resource Center (PERC) where the Physics Education group can meet and hold meetings and where the valuable lecture demonstration experiment set-ups can be displayed and made accessible to the faculty of the Department. A number of the demos have been transferred from F-229 and SEC C labs to PERC. Acquisition and development of lecture demonstration experiments will be a continuing process. The next step is the documentation of the resources so that the faculty may know what demos are available and how to use them.

The room will also serve as the office of the ARTIST project. The science equipment which will be purchased under this project will be placed in this room. We have ordered Physics equipment which are aligned to the Physics topics in Grades 7-10, although they may also be used for senior high school Physics. The list covers mechanics, heat and thermodynamics, waves and sound, optics and electromagnetism. There will also be materials which will be locally fabricated like ticker taper timers, circuit boards and Plexiglass lenses.

6. What are upcoming activities of the ARTIST project for this year?

We have held two seminar-workshops on Action Research. The first one was held on August last year in Ateneo de Manila. Prof. Maricar S. Prudente, who is an expert in Action Research, was the main speaker. The facilitators were Dr. Lydia S. Roleda, Dr. Minie Rose C. Lapinid and Dr. Socorro C. Aguja. They are all from the Science Department, Bro. Andrew Gonzales, FSC College of Education, De La Salle University. There were about ten participants from Roosevelt College, Inc. and some graduate students.

The second seminar-workshop was held recently on 7 April 2018 at Faura Hall, Ateneo de Manila. It was organized by the ARTIST team of Ateneo and De La Salle. The same team of speaker and facilitators from De La Salle University ran the seminar-workshop. A total of 31 participants from the ARTIST network of high schools – Parang High School, Sta. Elena High School, Marikina High School, Colegio de San Agustin, and graduate students in MS Science Education attended the workshop.

Another workshop on Action Research will be held on 15-18 May 2018 at De La Salle University-Manila. The ARTIST partners from Germany, Ireland, Austria, Georgia and Israel will facilitate the workshop. The first three days will be spent on understanding AR and writing AR proposals by selected teacher-participants. There will be an AR symposium, open to other teachers, on the fourth day where AR case studies will be presented.

Come October 2018 the workshop on Action Research and a meeting of the collaborators will be held in Haifa, Israel.

7. Any parting thoughts?

We hope that this project will have a positive impact on the way science is taught in the partner high schools and the lessons learned from these experiences may be adapted by other schools in the country.

ateneophysicsnews_ARTIST_workshop_AdMU-DLSU_20170804

Participants of Action Research for the Reflective Practitioner workshop at Ateneo de Manila University, 4 August 2017

Jerome Unidad of University of Naples: Polymer Rheology, Molecular Modeling, and the Orpheus group

Christine Querebillo, Jerome Unidad, and Kristine Mae Gotera

Christine Querebillo, Jerome Unidad, and Kristine Mae Gotera

by Quirino Sugon Jr.

Jerome Unidad, a Ph.D. in Chemical Engineering student at the Università Degli Studi di Napoli Federico II, gave a talk yesterday on Polymer rheology at Schmitt Hall, Room 109, 4:30-6:00 p.m.  The talk was attended mainly by students from the class of  Dr. Soma Chakraborty of the Chemistry Department.  Jerome finished his BS Physics (2008) and B.S. in Materials Science Engineering (2009) at the Ateneo de Manila University.  Below is an interview with Jerome by the Ateneo Physics News:

1.  When did you arrive in the country?

October 21.  I’ll be staying until December 10, then go back to Italy.

2.  What is your dissertation topic?

Molecular rheology of entangled polymers.  But that would be the same as five other people who are part of the European project Dynacop (Dynamics of Architecturally Complex Polymers).  It is like a consortium of different institutions in Europe and two industry partners. The project is funded by Marie Curie foundation.  I hope to finish my Ph.D. studies next year between April and May.  The length of my Ph.D. is about 3.5 years.

3.  Are you planning to go back to work in the Philippines?

Professionally, as of now I would wish to continue taking postdoctorates in science to increase my research breadth.  Then if I feel happy with the research capacity that I have, I will think whether to go back or not.

4.  How were you able to study in Italy?

I just found by looking for programs that would bring me closer to soft matter physics.  Little did I know that it would lead to chemical engineering–the land of soap factories and fuel burning.  They do a lot of soft matter stuff which is physically stimulating for me as a physics undergrad with materials science engineering.  I am happy with what I am doing.

My adviser is Prof. Giovanni Ianniruberto.  We did a Skype interview.  I don’t know why he picked me out of most people.  I did play around with molecular models before, some Monte Carlo simulations.  And then we got an SPP poster out of it.  That was me and David So.  I put that work as part of my application. That is the closest thing.  When I went there, the first thing I did was to open a book on soft matter physics.  Learning is not so difficult.  Everything was in terms of Brownian motion expressed in terms of scaling.    This fancy math suffices.  For example, the relaxation time of polymer molecular is proportional to a power of its molecular weight.  De Gennes won the Nobel Prize for soft matter for his pioneering work in the growth of soft matter physics.  His power relations are the foundations of the models that we are using .  They are simple if we understand scaling.

5.  Did you take courses?

It is largely research based, but you take courses just for information.  It’s a salad course: smart materials, nanotechnology, etc.  They helped to extend the breadth of your knowledge.  I took courses  like computational rheology and safety issues in hydrogen economy.  They are in extended seminar formats.  There is no very rigorous exam in the end.  You simply fill out the certain number of units.  Course work is mostly research.  In some sense I am a polymer scientist.  I did not take courses on how to make soap factories or their chemical design.  But now of course it is a renewed understanding–from blood rheology to basic physics of turbulence to tissue engineering.  You engineer some material which behave in a living tissue in a certain way.  These are biopolymers.  They are the tissues that will make the organ.

I cannot associate myself with chemical engineering per se.  It would be a misrepresentation.  I am not a chemist.  I am just a polymer scientist.  But I do want to branch out to other areas where polymer physics might be useful like biophysics or nanostructured polymer materials.  The future is not on polyethylene or plastics.

6.  Can you tell me about the Orpheus Facebook group?

Orpheus is a Facebook group that caters to all Filipino students and professionals who are staying right now in Europe, such as Nath Hermosa who is taking his postdoctoral studies.  Orpheus includes poepole who are going in the same career track that push the boundaries of knowledge.  We are trying a virtual-based environment where people can share common interest and find common ground.  We help each other through chances for meet-ups, sharing of resources, tips how to navigate one’s visa in various countries, and other travel advice.

Orpheus started this February.  I asked three random people who did not know I am asking also other people as well.  They said it was a great idea.  I was sot of bored without people to talk to.  I started with 17 original members, with Christine Querebillo as one of them.  Now we have 220 members in less than a year.

Mr. Joel Maquiling was there for the first general assembly at a Carnival in Venice.  We only wore masks like everyone.  That is one big celebration of Orpheus.  There was Chingay Vega from Chemistry, David So from Chemistry and Physics, Joseph Unsay from Chemistry, David Peralta, Nathaniel Hermosa from Physics, Angelique Lusuan from Physics, Paolo Bugarin in Math, Christian Chan, Omar Choa from Archaelogy and Chinese studies, Joanna Mae Indias from Physics.   Ian and Monette Vega from Physics are also there.  They were from the US.  They are now in Trieste.  Ian is in SISSA and Moe is in Universidad de Trieste.  There is also from UP–Myra Luna Yao, Miguel de Jesus in Math.  There is no one from Environmental Science.

7.  What was the most difficult moment in your life there?

The most difficult moment I had to go through was during my second year.  I was in a house that I shared with other flatmates.  And we were all good friends and chums.  But a year after, the land lady cound not find anymore tenants, so I had to live alone in a house of four.  The house was empty.  I miss my other friends.  It makes research tough.  That was the reason why I created Orpheus.  I was lonely. I need a support group.

8.  Any parting words?

One thing I would have done in my undergraduate years to do better in research is to master a programming language, i.e. practice programming everyday.  I think in my experience in theory/computational research, the progress in simulations is determined by the quality of programming I could do, especially graphics programming.  And I would also continue reading literature–what interested me when I went to polymer physics is reading papers.  I am happy where I am now and that is a good thing.

Computational approaches to enhance nanosafety and nanomedicine: A lecture by Prof. Eduardo R. Mendoza, PhD

You are cordially invited to a lecture on:

Prof. Eduardo R. Mendoza, PhD
Max Planck Institute of Biochemistry, Munich & University of the Philippines

Jan 20, 2012 (Friday), 4:30 ? 6:00 pm
Ateneo de Manila University, Chemistry Department, Schmitt Hall, C109

Abstract
In 2009, over 800 products were claimed to contain nanosilver, whose risk potential for health and environment is the subject of a heated debate [1]. With the increasing use of nanoparticles in food processing, filtration/purification and consumer products, as well as the huge potential of their use in nanomedicine, a quantitative understanding of the effects of nanoparticle uptake and transport is needed. This talk will discuss the importance of computational methods in a multidisciplinary approach to understand the complex bio-nano interactions. These include recent developments in “nanoinformatics” [2] – an emerging discipline analogous to “bioinfomatics” – and the beginnings of a “Systems Nanomedicine” which uses systems biology approaches [3, 4]. Both computational areas offer opportunities for Filipinos to engage in collaborative, cutting edge research in this impactful field.

References:

[1] Wijnhoven SWP et al. Nano-silver ? a review of available data and
knowledge gaps in human and environmental risk assessment.
Nanotoxicology, June 2009 3(2), 109-138.
[2] National Nanoinformatics Network. Nanoinformatics 2020 Roadmap
(April 2011). Downloadable from
http://nanotechinformatics.org/nanoinformatics/index.php/Main_Page
[3] Thomas DG et al. Informatics and Standards for nanomedicine
technology (June 2011), Wiley Online Library. Downloadable from:
http://onlinelibrary.wiley.com/doi/10.1002/wnan.152/pdf
[4] Dobay MPD, Alberola AP, Mendoza ER, R?dler JO. Modeling
nanoparticle uptake and intracellular distributions, 2011 (submitted
to Journal of Nanoparticle Research)

Speaker Info:


Ed Mendoza studied mathematics at Ateneo de Manila, Heidelberg University and Bonn University. After spending 22 years in the software industry, his interest in the dynamics of complex systems and systems biology led to a move back to academe in October 2002. He has since co-authored over 25 ISI publications, is a co-editor of a recent book on Systems Biology and Psychiatric Research (Wiley-Blackwell 2010) and a Section Editor of an upcoming Encyclopedia of Systems Biology (Springer 2012).  He is an Adjunct Professor in Mathematics and Computer Science at the University of the Philippines in Diliman, Los Banos and Manila. He is currently a Visiting Scientist at the Max Planck Institute of Biochemistry in Munich and can be contacted at mendoza@biochem.mpg.de.


Dr. Fabian M. Dayrit
Dean, School of Science & Engineering
Professor, Department of Chemistry
Ateneo de Manila University
Loyola Heights
1108 Quezon City, Philippines

Mailing address:
P.O. Box 154, Manila Central Post Office
0917 Manila, Philippines