anderswallin.net

Work / Research

I work with the construction and application of Optical Tweezers at the Electronics Laboratory, Department of Physics, Univeristy of Helsinki.

Hobbies

One of my hobbies is radio sailing in the International One Metre Class. I started in the Marblehead class in 1994 and switched to the IOM around 1999. I like all aspects of the hobby: designing, building, trimming, and racing. I’ve made a list of Model Boats I’ve owned.

I’m also interested in computer aided manufacturing, specifically how to control CNC machines with EMC, and how to calculate toolpaths. Together with a friend I’ve built a 3-axis cnc-mill, and more recently I’m working on a cnc-lathe project. I’ve made a small contribution to the EMC project in the form of pyVCP (python visual control panel).

I’d like to get better at astrophotography.

Contact

You can contact me on anders.wallin “at” helsinki.fi

Anders Wallin

Photographing the partial solar eclipse in August 2008.

Here follows an informal CV:

Education

• 1997, matriculation examination from Gymnasiet Svenska Normallyceum
• 1997-1998 11 months of military service in the Finnish Navy.
• 2002 M.Sc. in Physics, University of Helsinki, Department of Physical Sciences.
• 2003-> pursuing a PhD in Physics/Biophysics at the University of Helsinki. This is a joint project between the Department of Physical Sciences and the Institute of Biotechnology.

Peer-reviewed Scientific Publications

Roughly in reverse chronological order. Google scholar finds these surprisingly well. I also have a ResearcherID account.

1. H. Ojala, A. Korsbäck, A.E. Wallin, and E. Haeggström, “Optical position-clamping with predictive control“, Applied Physics Letters 95 181104 (2009). (doi:10.1063/1.3257693) (Open access through HELDA: http://hdl.handle.net/10138/14966)
2. A. E. Wallin, H. Ojala, E. Haeggström, and R. Tuma (2008), “Stiffer optical tweezers through real-time feedback control,” Applied Physics Letters 92 224104 (doi:10.1063/1.2940339) (Freely available through WRRO)
3. P Forsman, A Wallin, A Tietäväinen, and E Haeggström (2007 ), “Posturographic sleepiness monitoring”, Journal of Sleep Research vol16, 259-261 (doi:10.1111/j.1365-2869.2007.00597.x)
4. P Forsman, E Haeggström, and A Wallin (2007) “Reducing trial length in force platform posturographic sleep deprivation measurements”, Measurement Science and Technology (doi:10.1088/0957-0233/18/9/019)
5. Anders E. Wallin, Ari Salmi, and Roman Tuma (2007) “Step Length Measurement – Theory and Simulation for tethered Bead Constant-Force Single Molecule Assay”, Biophysical Journal (doi:10.1529/biophysj.106.097915) (Freely available on PubMed: PMC1913155)
6. Forsman, Pia; Haeggstrom, Edward ; Wallin, Anders; Toppila, Esko; Pyykko, Ilmari, (2007) “Daytime Changes in Postural Stability and Repeatability of Posturographic Measurements.”, Journal of Occupational and Environmental Medicine 49(6):591-596
7. Haeggström, E., Forsman, P., Wallin, A., Toppila, E. and Pyykkö, I. (2006) “Evaluating Tiredness using Force Platform Posturography”, IEEE Transactions in Biomedical Engineering 53(8):1578-1585 (doi:10.1109/TBME.2006.878069)

Other Publications

1. Anders E. Wallin, Heikki Ojala, Gabija Žiedait?, Linda Degerth, Dennis Bamford, and Edward Hæggström, High-resolution optical tweezers for investigating DNAbinding/translocating molecular motors, Proc SPIE 7400 (2009) (doi:10.1117/12.826470)
2. Jelena Telenius, Anders E Wallin, Michal Straka, Hongbo Zhang, Erika J. Mancinid and Roman Tuma, “RNA packaging motor: From structure to quantum mechanical modeling and sequential-stochastic
   mechanism”, Proceedings of the 2nd Mathematical Virology Workshop.
3. Anders E. Wallin, Heikki Ojala, Anders Korsbäck, Edward Haeggström, Roman Tuma (2007) “Real-time control of optical tweezers”, Proceedings of SPIE, 6644 Optical Trapping and Optical Micromanipulation IV, SPIE Optics and Photonics, San Diego, California, 26 – 30 August 2007. (doi:10.1117/12.737269)

At Töölönlahti with Italiko IOM yacht in May 2003.

Conferences

Contributed Talks

• “High-resolution optical tweezers for investigating DNAbinding/translocating molecular motors”, SPIE Optics & Photonics 2009, San Diego.
• “Force-extension measurements on single-stranded RNA using optical tweezers”, A.E. Wallin, J. Lisal, and R. Tuma, Finnish Physics Days 2006, 9-11 Mar 2006, Tampere, Finland
• “Real-Time control of optical tweezers”, A.E. Wallin, H. Ojala, A. Korsbäck, E. Haeggström, and R. Tuma. SPIE Optics and Photonics, San Diego, California, 26 – 30 August 2007 (see San Diego pictures here)

Posters

• Wallin A. and Tuma R., “High Resolution Optical Tweezers for Studying Viral Molecular Motors”, International Conference on Biological Physics, Gothenburg, Sweden, 23-27 Aug 2004.
• A. Wallin and R. Tuma, “Beam-stabilized High Resolution Optical Tweezers”, Biophysical Society 49th Annual Meeting, Long Beach, California, 12-16 Feb 2005 (see Long Beach pictures here)
• Finnish Physics Days 2005, 17-19 Mar 2005, Espoo, Finland.
• A. E. Wallin , J. Lisal & R. Tuma , “Stochastic cooperativity model for molecular motors”, 15th IUPAB and 5th EBSA International Biophysics Congress, Montpellier, France, 27 Aug – 1 Sep, 2005 (see Montpellier pictures here)
• Anders E. Wallin, Ari Salmi, Roman Tuma. “How thermal noise limits resolution in tethered bead, constant force, single molecule experiments – theory and simulation”, Biophysical Society 50th Annual Meeting, Salt Lake City, Utah, 18-22 Feb 2006 (see Salt Lake City and Bryce Canyon pictures here)
• Wallin, A., Ojala, H., Korsbäck, A., Haeggström, E., Tuma, R., “Feedback Controlled Optical Tweezers”, Trends in Optical Micromanipulation, Obergurgl, Austria, 4-9 Feb 2007 (see Obergurgl picture here)
• Biophysical Society 51st Annual Meeting, Baltimore, Maryland, 3-7 March 2007 (see Baltimore pictures here)
• Wallin, A., Ojala, H., Haeggström, E. and Tuma, R. (2007), “Shaping An Optical Trap Using Feedback Control”, Finnish Physics Days 2007, Tallinn, Estonia, 15-17 March 2007 (see Tallinn picture here)
• Anders Wallin and Heikki Ojala, “FPGA-Based Real-Time Feedback Control of Optical Tweezers“, NIWeek 2007, Austin, Texas, 7-9 August 2007 (My paper was chosen as a category winner in the paper contest!) (see Austin pictures here)
• Nanoscience Days, University of Jyväskylä, Finland, 25-26 October 2007
• 1st International Symposium on Optical Tweezers in Life Sciences, Berlin, Germany, 15 May 2008. (see Berlin pictures here)

Model Yachting Articles

Various articles, mostly in Finnish or Swedish that I’ve written for magazines, but usually just for the Finnish radio-sailors’ yearly ‘Styyra’ newsletter.

• Miten menestyä RC-purjehduksessa ?, Styyra 2000, “How to succeed in radiosailing – part 1″
• Miten pärjätä kilpailuissa  Osa 2, Styyra 2001, “How to succeed in radiosailing – part 2″
• 1m-rikin strategiset mitat, Styyra 2002, “The Strategic Measurements of an IOM-rig”, summarized in my IOM rig-comparison.
• 1m veneen laminointi, Styyra 2002, “Moulding an IOM hull”
• Noux Bulbiprojekti, Styyra 2003, “The Noux keel bulb project”, see also Making a Bulb.
• IOM-Lajiesittely, Pienoismalli 2/2004, “An introduction to the IOM-class”
• IOM-MM, Pienosmalli 2/2004, “IOM-Worlds 2003, Vancouver, Canada”
• IOM EM, 7-16.10.2004, Arcos, Espania, Styyra 2004, “IOM Euros, Arcos, Spain” see also Arcos pictures.
• IOM – Mastomateriaalit, Styyra 2004, “Mast materials for an IOM”
• IOM PM 2005 Veddelev, Tanska, Styyra 2005, “IOM Nordics, Veddelev, Denmark”, see also Veddelev pictures.
• 2005 IOM-MM, Mooloolaba, Queensland, Australia, Styyra 2005, “IOM Worlds, Mooloolaba, Australia”, see also Mooloolaba pictures.
• IOM-luokan MM, Marseille, Ranska, Pienoismalli 8/2007, “Marseilles IOM-Worlds report”

Me and ‘Cockatoo’ IOM yacht at the Turku ranking event in September 2006.

Teaching

A list of courses I have taught on. UH is short for University of Helsinki, Department of Physics.

• 2000: Teaching assistant on “Electrodynamics”, UH (roughly the contents of Reitz, Milford, Christy)
• 2001: Teaching assistant on “Measurement methods and instrumentation”, UH (Bentley)
• 2001: Teaching assistant on “Ultrasonics”, UH
• 2002, 2003, 2004: Teaching assistant on “Electronics”, UH (basics of analog and digital electronics, Horowitz & Hill)
• 2002: Lecturer, “Electronics”, a one-semester introductory course on electronics, UH
• 2002-2007: Lecturer, “Physics for medical students”, a six week course for students trying to get in to medical school, arranged by Thorax r.f. (I taught the physics part of this course, 25 h lectures and 50 h exercises, each spring for six years)
  
• 2007: Lecturer, UH: (530190) Methods in Single Molecule Biophysics, (3op/2ov) , Fall 2007, a short course on single molecule biophysics and the various experimental techniques used in this field.
• 2007: Lecturer, UH: (530142) Digitalelektronik I. Basics of digital electronics.
• 2007: I co-supervised Heikki Ojala’s M.Sc. thesis “Stiffer Optical Tweezers through Real-Time Feedback Control”
• 2008: A 1 h lecture on “Single Molecule Techniques” as part of the UH course “Nanoscience IV: Bionanoscience”
• 2008: I co-supervised Anders Korsbäck’s B.Sc. thesis “Simulation of a proportional position-clamp algorithm for feedback-controlled optical tweezers”
• 2008: Lecturer, UH: (530096) Fysikens mätmetoder I. Basics of measurement systems.
• 2008: I supervised Antti Rahikkala’s B.Sc. thesis “Computer Controlled Pressure Controller for Lab-On-Chip Applications”
• 2009: Lecturer, UH, Basics of measurement systems.
• 2009: 2 hours of lectures on nanoscale force-spectroscopy on Nanoscience-3: Nanotechniques, a collaboration between UH and AaltoU
• 2009: I supervised Ville Heikkinen’s B.Sc. thesis “High-throughput single molecule experiments: tethered particle motion and flow-stretching, data analysis and simulation”
• 2009: I supervised Antti Rahikkala’s M.Sc. thesis “Stretching single DNA-molecules with temperature-stabilized optical tweezers“

Work experience

• 5.5.1997 – 20.10.1997: Digitizer, Mallon Technology Finland Oy.
• 1.7.1999 – 13.8.1999: Digitizer, Mallon Technology Finland Oy.
• 2000 / 3 months: Research Asistant, University of Helsinki, Department of Physical Sciences.
• 1.1.2003-31.6.2003: Amanuensis (acting), University of Helsinki, Department of Physical Sciences. Maintenance of IT services for the theory department.
• 1.1.2003-31.12.2003: Assistant (acting), University of Helsinki, Department of Physical Sciences. Supervising lab-courses for 1st and 2nd year students.
• 1.1.2004-31.12.2005 Researcher (Graduate Student), University of Helsinki, Institute of Biotechnology.
• 1.1.2006 – 31.12.2007 Employed as a Graduate Student by the Finnish National Graduate School of Nanosciences.
• 1.1.2008 – 31.12.2008 Personal grant from the Jenny & Antti Wihuri foundation.
• 1.1.2009 -> researcher, University of Helsinki

Grants and Awards

• 1997: The Wahlfors stipend, Gymnasiet svenska normallyceum (graduated top of class)
• 2004: Chancellors travel grant, University of Helsinki
• 2005: Chancellors travel grant, University of Helsinki
• 2007: Chancellors travel grant, University of Helsinki
• 2007: Magnus Ehrnrooth society, travel grant
• 2007: Life Science & Biotechnology Paper Contest Category Winner (with Heikki Ojala as co-author), NIWeek-07, National Instruments, Austin, Texas.
• 2008: Jenny and Antti Wihuri foundation. Grant for pursuing graduate studies, 18 500 €
• 2008: Magnus Ehrnrooth society, travel grant
• 2008: With prof. Edward Haeggström I co-authored an Academy of Finland grant which was awarded 520 k€ funding for 2009-2012.
• 2009: Magnus Ehrnrooth society, travel grant
• 2009: Vilho, Yrjö ja Kalle Väisälän rahasto, travel grant