Students

 

 

 

Hitrik Maria

Maria Hitrik

PhD Student
Email: maria.hitrik@gmail.com

Academic History:
2001 2005: BSc Chemistry and Mathematics at the Hebrew University.
2005 - 2008: MSc (with honor).
Thesis title: On Line Monitoring of Nanoclusters Formation Based on Catalytic Isomerization Process in the Presence of Allyl Alcohol. Mechanism of Nanoparticle Self-assembly. Adviser: Prof. Y. Sasson, the Hebrew University.
2009 - present: PhD, Thesis title: Preparation of Polymer Membranes for Fuel Cells using Langmuir-Blodgett Films.
Co-advisor: Prof. O. Lev, the Hebrew University.
Itamar Gofberg

Itamar Gofberg


Academic History:
2006-2008: BSc in Chemistry at the Hebrew University.
2008-2010: MSc in Electrochemistry chemistry at the Hebrew University.
Research Areas: Electrochemical removal of heavy metals by a flow system.
The research applies a new flow cell combined with electrochemistry that has been shown to purify simultaneously some of the most toxic metals. The system is based on hydroxide formation that causes the deposition of the transition metals as hydroxides. Unlike cathodic metal deposition, the new system applies a relatively low voltage in a flexible environment.

Publications:
I. Gofberg and D. Mandler, Preparation and Comparison between Different Thiol-Protected Au Nanoparticles, J. Nanoparticle Res. 12, 1807-1811, 2010. *Link
Esteban Malel

Esteban Malel

PhD Student
Email: estebm@gmail.com

Academic History:
1998-2002: BSc in chemistry at Tel-Aviv University.
2004-2007: MSc in Electrochemistry at the Hebrew University.
2007- present: PhD in Electrochemistry chemistry at the Hebrew University.
Research Areas: Controlled localized deposition of metal nanoparticles.
The controlled deposition of nanoparticles in pre-defined patterns is a challenge in nanotechnology. This has been addressed by the application of different methods and techniques as biocatalyzed deposition of Au by Cellobiose dehydrogenase (CDH), localized electrodeposition in the presence of surfactant agents and onto modified surfaces. The advantage of scanning electrochemical microscope (SECM) and atomic force microscope (AFM) as patterning tools are exploited in this study.
Publications:
E. Malel; J. K. Sinha; I. Zawisza; G. Wittstock; D. Mandler, Electrochemical detection of Cd2+ ions by a self-assembled monolayer of 1,9-nonanedithiol on gold, Electrochim. Acta, 53, 6753-6758, 2008. *Link

E. Malel; D. Mandler, Localized electroless deposition of gold nanoparticles using scanning electrochemical microscopy, J. Electrochem. Soc., 155,6, D459-D467, 2008. *Link

E. Malel, R. Ludwig, L. Gorton and D. Mandler, Local Bio-catalyzed Deposition of Au Nanoparticles by Cellobiose Dehydrogenase and, Chem. Eur. J., 2010, in press.



efrat shapira

Efrat Gdor

PhD Student
Email: efrat.shapira@mail.huji.ac.il

Academic History:
2004-2007: BSc in chemistry at Tel Aviv University. 
2007-2010: MSc in Inorganic Chemistry at the Hebrew University. 
2011-present PhD in Electrochemistry at the Hebrew University.

Reut Toledano Avigdor

Reut Toledano Avigdor

PhD Student
Email: reut.toledano@gmail.com
Academic History:
1999-2002: BSc in chemistry at the Hebrew University.
2002-2005: MSc in chemistry at the Hebrew University under the supervision of Prof. Daniel Mandler. The title of the research was "A New Approach to Nanopatterning Using the Scanning Electrochemical Microscope (SECM)"
2005- present: PhD in Electrochemistry at the Hebrew University.

Research Areas: Electrochemical Co-deposition of Sol-Gel Based Nanocomposite Thin Films.
We present a new method for obtaining thin nanocomposite films made of sol-gel based copper, Au nanoparticles or carbon nanotubes using a single electrochemical step. Electrochemical deposition was accomplished by applying a negative potential to an electrode immersed in a solution. The negative potential, which caused the reduction of the protic solvent, altered the pH and accelerated the deposition of the sol-gel based nano-objects.

Publications:

R. Toledano, R. Okner, D. Mandler, Electrochemical Codeposition of Ceramic Nanocomposite Films. European Nano Systems Workshop - ENS 2007, Paris : France (2007) *Link.

R. Toledano, R. Shacham, D. Avnir and D. Mandler, Electrochemical Codeposition of Metal/Sol-Gel Thin Nanocomposite Films, Chem. Mater 20, 4276-4283, 2008.

R. Toledano and D. Mandler, Electrochemical Codeposition of Gold Nanoparticles/Sol-Gel Thin Films, Chem. Mater., 2010, in press.

Patent:
R. Toledano, D. Avnir and D. Mandler, Electrochemical co-deposition of sol-gel films, PCT/IL2007/001216, filing date 7.10.2007.

Tomer noyhouzer

Tomer Noyhouzer

PhD Student
Email: tomer.noyhouzer@mail.huji.ac.il or Tomer79@gmail.com

Academic History:

2003-2006: BSc in chemistry at Ben-Gurion University.
2006-2008: MSc in Analytical Electrochemistry at the Hebrew University.
2008- present: Towards PhD in Analytical Electrochemistry chemistry at the Hebrew University.

Research area:
Assembling Voltammetric Electrodes for Heavy Metals.
Research involves the development of new approaches for the selective determination of heavy metals by electrochemical means. We currently work on electrodes for cadmium, mercury and chromate as part of a European project called Hydronet (http://www.hydronet-project.eu/) . Our current method exploits the under potential deposition (UPD) of the metals and subtractive voltammetry in order to increase the sensitivity, which has already reached the ppt level. These sensors are mounted as part of a flow, fully automated system.

Publications:
T. Noyhouzer, R. Kohen and D. Mandler, A new approach for measuring the redox state and redox capacity in milk, Anal. Methods, 1, 93 99, 2009. (COVER) *Link

T. Noyhouzer and D. Mandler, Determination of low levels of cadmium ions by under potential deposition on self-assembled monolayer on gold electrode. Analytica chimica acta 2001;684(1-2):1-7*Link

T. Noyhouzer, and D. Mandler, A New Electrochemical Flow Cell for the Remote Sensing of Heavy Metals, Electroanalysis, 25(1), 109 115, 2013.*Link

T. Noyhouzer, I. Valdinger and D. Mandler, Improving Electron Transfer in Potentiometry, Submitted

 

A few words about me :
When I am not praying to my electrodes to work, and covered with papers to grade you can find me walking with my dog and friends in the beautiful landscapes of Israel or climbing a nice piece of rock on some cliff.

Tamar Danieli

Tamar Danieli

Ph.D. Student
Email: tamard@danieli.com

Academic History:

2000-2005: BSc in chemistry at Ben Gurion University.
BSc in chemical engineering at Ben Gurion University.
2006- present: PhD in Electrochemistry at the Hebrew University.

Research Areas: Developing new techniques to study and manipulate nanoparticle systems with scanning electrochemical microscopy (SECM).
SECM technique offers a very elegant way for experimenting with local chemistry and process analysis. New methods that combine electrochemistry with the SECM technique target the study of nanoparticle systems. Among the investigated processes are the local deposition of metals and semiconductors nanoparticles, local chemistry with nanoparticles on surfaces and the transfer of charged species across micro liquid-liquid interfaces. The mechanism of the last process is very complex and not fully understood. This research pushes the limits of the SECM technique.

Publications:

T. Danieli, N. Gaponik, A. Eychmueller, D. Mandler, Studying the Reactions of CdTe Nanostructures and Thin CdTe Films with Ag+ and AuCl4-, J. Phys. Chem. C, 112, 8881-8889, 2008. *Link

 

Shlomit Kraus-Ofir

Shlomit Kraus-Ofir

Academic History:
2004-2006: BSc in chemistry at the Hebrew University of Jerusalem.
2007- present: PhD student (in the direct program) in chemistry of thin layers at the Hebrew University.

Research Areas: Studying miniaturized systems (structuring and characterizing) using the Langmuir-Blodgett method
My research focuses on structuring and characterizing miniaturized systems, using the Langmuir-Blodgett method. Langmuir films are self assembled monolayers of surface-active molecules of amphiphilic nature molecules organized in the liquid-gas interface and further vertically transferred onto solid substrate. In my research I use a variety of building blocks for the Langmuir layers, in order to scrutinize the various research applications of the different layers, from sensing to nanoparticle patterning.

Publications:
S. Kraus and D. Mandler, Complexation of Ferrous and Cupric Ions by Phenanthroline and Terpyridine Langmuir Films, Langmuir, 22, 7462-7464, 2006.*Link

S. Kraus-Ophir, J. Almog and D. Mandler, Selective Complexation between a Novel Bowl-Shaped Molecule and Fe3+ or PdCl42- Ions, Inorg. Chim. Acta, 2010, in press.*Link

S. Kraus, I. Jerman, B. Orel and D. Mandler, Boxes-Like Molecules as Building Blocks for LB Films in Sensing and Nanoparticle Patterning, submitted.

Tehila Shachar Levian

MSc student
Email: tehilalav@gmail.com

Research Area:
Development of a remote controlled flow system based electrochemical sensor for mercury.

 

Elena Krent

Elena Krent

MSc student
Email: elena.krent@mail.huji.ac.il

Academic History:
2007-2010: BSc Chemistry and Mathematics at
the Hebrew University.

Research Area:
Development of a sensor for uranyl determination.

 

 

Camille Zwicker

Email: camille.zwicker@hotmail.com
Married plus 4 children.

Academic History:
1990-1993 PhD in bio-organic chemistry from Avignon's University, France. Topic: preparation of liposomes and encapsulation of drugs.

1993-1997 Post-doc at the Hebrew University with Prof. Y. Sasson.
1997-2008 Intel company as process and integration engineer. Experience in thin layers deposition (Silicon oxide, tungsten, silicon nitride...(CVD, LPCVD)), wet chemistry (clean and etch processes) and plasma metal etching.
2010- Photothermal conversion of solar energy using ceramic-metal coatings


Moran Rave

MSc student
Email: moran.rave@mail.huji.ac.il

Academic History:

2007-2010: BSc in Chemistry & Biology at the Hebrew University.

2010- present: MSc in Chemistry at the Hebrew University.

Research Areas: Electrochemical Co-deposition of Sol-Gel Based Nanocomposite Thin Films.

Dani Tulchinsky

MSc student

Email: dani.tulchinsky@mail.huji.ac.il

Academic History

2007-2010: BSc in Chemistry at Ben-Gurion University .
2010-present: MSc in Chemistry at the Hebrew University (Cooperation with
Prof. Shlomo Magdassi).

Research Areas:

Development of absorbing coatings for high temperature photothermal solar energy conversion based on sol-gel technology and dispersion methods.

Liang Liu

Postdoctor

Email: liang.liu@mail.huji.ac.il

 

Academic History:

2001-2005: BSc in Chemistry at Chu Kochen Honors College, Zhejiang University, China

2005-2010: PhD in Chemistry at Zhejiang University, China. Thesis: Electrodeposition of silane sol-gel films and silane-contained primers.

 

Research Areas:

Anti-corrosion pretreatment of metals by silane: an alternative to toxic chromating and phosphating.

Electrodeposition of sol-gel films

Patterning sol-gel films with scanning electrochemical microscope (SECM)

 

Roman Fedorov

Email: fedorov.sci@gmail.com

Academic History:
2004 - 2010: BSc and MSc in Electrochemistry at D. Mendeleyev University of Chemical Technology of Russia.
Master thesis : Scanning probe microscopy of nanoobjects on Pt single crystals.
Research advisor: Prof. A.I. Danilov.

2007 - 2010 Senior research-assistant in Laboratory of Surface Layers Structure, A.N. Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences

2011 - present: Participation in project "Studying and modifying surfaces with high resolution using Scanning Electrochemical Microscope (SECM)" at the Hebrew University.
Research advisor: Prof. D. Mandler

Research Areas:
1. In situ and ex situ SPM surface analysis of different substrates modified by micro and nanoobjects.
2. Electrochemistry of single crystals (basal and stepped Pt, Au surfaces). Developing a technique of electrochemical synthesis of nanoobjects with controlled structure on the basal faces (111, 100, 110) of platinum single crystals using cyclic voltammetry and potentiostatic current transient methods..
3. Electrodeposition of metals in magnetic field.
4. Controlled localized deposition of metal nanoparticles. Scanning electrochemical microscopy (SECM).