Innentitelbild: Molecular Engineering of Zinc Phthalocyanines with Phosphinic Acid Anchoring Groups (Angew. Chem. 8/2012)

2012 ◽  
Vol 124 (8) ◽  
pp. 1766-1766
Author(s):  
Ismael López-Duarte ◽  
Mingkui Wang ◽  
Robin Humphry-Baker ◽  
Mine Ince ◽  
M. Victoria Martínez-Díaz ◽  
...  
Keyword(s):  
Phosphinic Acid ◽  
Molecular Engineering ◽  
Zinc Phthalocyanines ◽  
Anchoring Groups

Molecular Engineering of Zinc Phthalocyanines with Phosphinic Acid Anchoring Groups

2011 ◽  
Vol 124 (8) ◽  
pp. 1931-1934 ◽  
Author(s):  
Ismael López-Duarte ◽  
Mingkui Wang ◽  
Robin Humphry-Baker ◽  
Mine Ince ◽  
M. Victoria Martínez-Díaz ◽  
...  
Keyword(s):  
Phosphinic Acid ◽  
Molecular Engineering ◽  
Zinc Phthalocyanines ◽  
Anchoring Groups

scholarly journals Inside Cover: Molecular Engineering of Zinc Phthalocyanines with Phosphinic Acid Anchoring Groups (Angew. Chem. Int. Ed. 8/2012)

2012 ◽  
Vol 51 (8) ◽  
pp. 1732-1732
Author(s):  
Ismael López-Duarte ◽  
Mingkui Wang ◽  
Robin Humphry-Baker ◽  
Mine Ince ◽  
M. Victoria Martínez-Díaz ◽  
...  
Keyword(s):  
Phosphinic Acid ◽  
Molecular Engineering ◽  
Zinc Phthalocyanines ◽  
Anchoring Groups

Molecular Engineering of Zinc Phthalocyanines with Phosphinic Acid Anchoring Groups

2011 ◽  
Vol 51 (8) ◽  
pp. 1895-1898 ◽  
Author(s):  
Ismael López-Duarte ◽  
Mingkui Wang ◽  
Robin Humphry-Baker ◽  
Mine Ince ◽  
M. Victoria Martínez-Díaz ◽  
...  
Keyword(s):  
Phosphinic Acid ◽  
Molecular Engineering ◽  
Zinc Phthalocyanines ◽  
Anchoring Groups

Molecular engineering of anchoring groups for designing efficient triazatruxene-based organic dye-sensitized solar cells

2019 ◽  
Vol 43 (17) ◽  
pp. 6480-6491 ◽  
Author(s):  
Narendra Nath Ghosh ◽  
Md. Habib ◽  
Anup Pramanik ◽  
Pranab Sarkar ◽  
Sougata Pal
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Organic Dye ◽  
Molecular Engineering ◽  
Dye Sensitized ◽  
Anchoring Groups ◽  
Sensitized Solar Cells

Triazatruxene with designed anchoring groups provides better photovoltaic activities.

Molecular Engineering of 2-Quinolinone Based Anchoring Groups for Dye-Sensitized Solar Cells

2014 ◽  
Vol 118 (30) ◽  
pp. 16896-16903 ◽  
Author(s):  
Paramaguru Ganesan ◽  
Aravindkumar Chandiran ◽  
Peng Gao ◽  
Renganathan Rajalingam ◽  
Michael Grätzel ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Molecular Engineering ◽  
Dye Sensitized ◽  
Anchoring Groups ◽  
Sensitized Solar Cells

scholarly journals Zinc phthalocyanines as light harvesters for SnO2-based solar cells: a case study

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Riccardo Milan ◽  
Gurpreet Singh Selopal ◽  
Marco Cavazzini ◽  
Simonetta Orlandi ◽  
Rita Boaretto ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Secondary Amines ◽  
Computational Studies ◽  
Dye Sensitized ◽  
Zinc Phthalocyanines ◽  
Photovoltaic Applications ◽  
Anchoring Groups ◽  
Sensitized Solar Cells

AbstractSnO2 nanoparticles have been synthesized and used as electron transport material (ETM) in dye sensitized solar cells (DSSCs), featuring two peripherally substituted push-pull zinc phthalocyanines (ZnPcs) bearing electron donating diphenylamine substituents and carboxylic acid anchoring groups as light harvesters. These complexes were designed on the base of previous computational studies suggesting that the integration of secondary amines as donor groups in the structure of unsymmetrical ZnPcs might enhance photovoltaics performances of DSSCs. In the case of TiO2-based devices, this hypothesis has been recently questioned by experimental results. Herein we show that the same holds for SnO2, despite the optimal matching of the optoelectronic characteristics of the synthesized nanoparticles and diphenylamino-substituted ZnPcs, thus confirming that other parameters heavily affect the solar cells performances and should be carefully taken into account when designing materials for photovoltaic applications.

Insight into the effects of the anchoring groups on the photovoltaic performance of unsymmetrical phthalocyanine based dye-sensitized solar cells

2021 ◽  
Author(s):  
Gülenay Tunç ◽  
Michael Zambrano-Angulo ◽  
Barış Seçkin Arslan ◽  
Emre Güzel ◽  
Mehmet Nebioğlu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Theoretical Calculations ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Zinc Phthalocyanines ◽  
Anchoring Groups ◽  
Sensitized Solar Cells ◽  
Insight Into

In this paper, the synthesis, characterization and theoretical calculations of newly synthesized asymmetric zinc phthalocyanines were reported to investigate the influence of different carboxyl anchoring groups on the performance of DSSCs.

Fluorescence ratio imaging of dynamic intracellular ionic signals

1988 ◽  
Vol 46 ◽  
pp. 42-43
Author(s):  
R. Y. Tsien ◽  
A. Minta ◽  
M. Poenie ◽  
J.P.Y. Kao ◽  
A. Harootunian
Keyword(s):  
Binding Sites ◽  
Living Cells ◽  
Molecular Engineering ◽  
Ph Indicators ◽  
Highly Sensitive ◽  
Fluorescence Ratio Imaging ◽  
Ratio Imaging ◽  
Technical Advances ◽  
Indicator Dyes ◽  
Fluorescein Dyes

Recent technical advances now enable the continuous imaging of important ionic signals inside individual living cells with micron spatial resolution and subsecond time resolution. This methodology relies on the molecular engineering of indicator dyes whose fluorescence is strong and highly sensitive to ions such as Ca2+, H+, or Na+, or Mg2+. The Ca2+ indicators, exemplified by fura-2 and indo-1, derive their high affinity (Kd near 200 nM) and selectivity for Ca2+ to a versatile tetracarboxylate binding site3 modeled on and isosteric with the well known chelator EGTA. The most commonly used pH indicators are fluorescein dyes (such as BCECF) modified to adjust their pKa's and improve their retention inside cells. Na+ indicators are crown ethers with cavity sizes chosen to select Na+ over K+: Mg2+ indicators use tricarboxylate binding sites truncated from those of the Ca2+ chelators, resulting in a more compact arrangement of carboxylates to suit the smaller ion.

Combinatorial Peptide Libraries for Selecting Inorganic-Binding Proteins: A Step in Molecular Biomimetics

2003 ◽  
Vol 773 ◽  
Author(s):  
C. Tamerler ◽  
S. Dinçer ◽  
D. Heidel ◽  
N. Karagûler ◽  
M. Sarikaya
Keyword(s):  
Binding Proteins ◽  
Building Blocks ◽  
Molecular Engineering ◽  
Inorganic Materials ◽  
Combinatorial Peptide Libraries ◽  
Self Assembling ◽  
Complex Functions ◽  
Recent Developments ◽  
Specific Proteins ◽  
Molecular Biomimetics

AbstractProteins, one of the building blocks in organisms, not only control the assembly in biological systems but also provide most of their complex functions. It may be possible to assemble materials for practical technological applications utilizing the unique advantages provided by proteins. Here we discuss molecular biomimetic pathways in the quest for imitating biology at the molecular scale via protein engineering. We use combinatorial biology protocols to select short polypeptides that have affinity to inorganic materials and use them in assembling novel hybrid materials. We give an overview of some of the recent developments of molecular engineering towards this goal. Inorganic surface specific proteins were identified by using cell surface and phage display technologies. Examples of metal and metal oxide specific polypeptides were represented with an emphasis on certain level of specificities. The recognition and self assembling characteristics of these inorganic-binding proteins would be employed in develeopment of hybrid multifunctional materials for novel bio- and nano-technological applications.

Factors Affecting Molecular Self-Assembly and Its Mechanism

2012 ◽  
Vol 9 (1) ◽  
pp. 43 ◽  
Author(s):  
Hueyling Tan
Keyword(s):  
Self Assembly ◽  
Building Blocks ◽  
Molecular Engineering ◽  
Molecular Structures ◽  
Polymer Science ◽  
New Approach ◽  
Factors Affecting ◽  
Dna Structures ◽  
Self Assembling ◽  
Wide Range

Molecular self-assembly is ubiquitous in nature and has emerged as a new approach to produce new materials in chemistry, engineering, nanotechnology, polymer science and materials. Molecular self-assembly has been attracting increasing interest from the scientific community in recent years due to its importance in understanding biology and a variety of diseases at the molecular level. In the last few years, considerable advances have been made in the use ofpeptides as building blocks to produce biological materials for wide range of applications, including fabricating novel supra-molecular structures and scaffolding for tissue repair. The study ofbiological self-assembly systems represents a significant advancement in molecular engineering and is a rapidly growing scientific and engineering field that crosses the boundaries ofexisting disciplines. Many self-assembling systems are rangefrom bi- andtri-block copolymers to DNA structures as well as simple and complex proteins andpeptides. The ultimate goal is to harness molecular self-assembly such that design andcontrol ofbottom-up processes is achieved thereby enabling exploitation of structures developed at the meso- and macro-scopic scale for the purposes oflife and non-life science applications. Such aspirations can be achievedthrough understanding thefundamental principles behind the selforganisation and self-synthesis processes exhibited by biological systems.

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