Wolfgang Helfrich
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German physicist
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Physics
Wolfgang Helfrich's Degrees
- PhD Physics University of Göttingen
Why Is Wolfgang Helfrich Influential?
(Suggest an Edit or Addition)According to Wikipedia, Wolfgang Helfrich is a German physicist and inventor recognized for his contributions to twisted-nematic liquid crystal technology, which is used to produce a variety of modern LCD electronic displays.
Wolfgang Helfrich's Published Works
Number of citations in a given year to any of this author's works
Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author
Published Works
- Elastic Properties of Lipid Bilayers: Theory and Possible Experiments (1973) (4733)
- Voltage-Dependent Optical Activity of a Twisted Nematic Liquid Crystal (1971) (993)
- RECOMBINATION RADIATION IN ANTHRACENE CRYSTALS (1965) (492)
- Steric Interaction of Fluid Membranes in Multilayer Systems (1978) (411)
- Undulations, steric interaction and cohesion of fluid membranes (1984) (384)
- The curvature elasticity of fluid membranes : A catalogue of vesicle shapes (1976) (380)
- Erratum: Conduction‐Induced Alignment of Nematic Liquid Crystals: Basic Model and Stability Considerations (1969) (350)
- Fluid and Solid Fibers Made of Lipid Molecular Bilayers (1993) (305)
- Liquid Crystals of One- and Two-Dimensional Order (1980) (293)
- Red blood cell shapes as explained on the basis of curvature elasticity. (1976) (267)
- Effect of thermal undulations on the rigidity of fluid membranes and interfaces (1985) (247)
- Transients of Volume‐Controlled Current and of Recombination Radiation in Anthracene (1966) (201)
- Effect of surface charge on the curvature elasticity of membranes (1988) (191)
- Measurement of the curvature-elastic modulus of egg lecithin bilayers. (1976) (173)
- DEFORMATION OF CHOLESTERIC LIQUID CRYSTALS WITH LOW THRESHOLD VOLTAGE (1970) (170)
- Size distributions of vesicles: the role of the effective rigidity of membranes (1986) (162)
- Lipid Bilayer Fibers from Diastereomeric and Enantiomeric N-Octylaldonamides (1988) (156)
- The Bending Rigidity of Phosphatidylcholine Bilayers: Dependences on Experimental Method, Sample Cell Sealing and Temperature (1995) (151)
- Blocked Lipid Exchange in Bilayers and its Possible Influence on the Shape of Vesicles (1974) (147)
- Electrohydrodynamic and Dielectric Instabilities of Cholesteric Liquid Crystals (1971) (137)
- Capillary Flow of Cholesteric and Smectic Liquid Crystals (1969) (135)
- Bending elasticity of electrically charged bilayers : coupled monolayers, neutral surfaces, and balancing stresses (1992) (132)
- Osmotic shrinkage of giant egg-lecithin vesicles. (1981) (124)
- The size of bilayer vesicles generated by sonication (1974) (112)
- Alignment-Inversion Walls in Nematic Liquid Crystals in the Presence of a Magnetic Field (1968) (106)
- Bending rigidities of some biological model membranes as obtained from the Fourier analysis of contour sections (1990) (92)
- Mutual adhesion of lecithin membranes at ultralow tensions (1989) (91)
- Fluorescence and Defect Fluorescence of Anthracene at 4.2°K (1965) (90)
- Molecular Theory of Flow Alignment of Nematic Liquid Crystals (1969) (87)
- The swelling of egg lecithin in water (1984) (87)
- Magnetic anisotropy of egg lecithin membranes. (1978) (85)
- Deformation of spherical vesicles by electric fields (1988) (84)
- Effects of a cosurfactant on the stretching and bending elasticities of a surfactant monolayer (1992) (81)
- Ferroelectrically switchable columnar liquid crystal (1992) (80)
- Budding of lipid bilayer vesicles and flat membranes (1992) (76)
- Electric Alignment of Liquid Crystal (1973) (72)
- Magnetic anisotropy of lecithin membranes. A new anisotropy susceptometer. (1984) (70)
- Lyotropic lamellar phases (1994) (70)
- Effect of Electric Fields on the Temperature of Phase Transitions of Liquid Crystals (1970) (68)
- Lipid bilayer spheres: Deformation and birefringence in magnetic fields (1973) (64)
- Phase Transitions between Vesicles and Micelles Driven by Competing Curvatures (1994) (62)
- Bilayer bending rigidity of some synthetic lecithins (1985) (61)
- Out-of-Plane Fluctuations of Lipid Bilayers (1975) (60)
- Helical bilayer structures due to spontaneous torsion of the edges (1986) (60)
- Two ferroelectric phases of a columnar dibenzopyrene (1995) (55)
- Alignment and Opening of Giant Lecithin Vesicles by Electric Fields (1979) (55)
- Destruction of Triplet Excitons in Anthracene by Injected Electrons (1966) (51)
- A simple method to observe the piezoelectricity of liquid crystals (1971) (45)
- Liquid-Crystalline Curvature Electricity: The Bending Mode of MBBA (1972) (45)
- Deformation of Lipid Bilayer Spheres by Electric Fields (1974) (42)
- Orienting Action of Sound on Nematic Liquid Crystals (1972) (42)
- Defect model of the smectic A-nematic phase transition (1978) (40)
- The Egg Carton: Theory of a Periodic Superstructure of Some Lipid Membranes (1996) (39)
- Invited Lecture. Hats and saddles in lipid membranes (1989) (39)
- Passages in Lecithin-Water Systems (1978) (38)
- Elastic Torques about Membrane Edges: A Study of Pierced Egg Lecithin Vesicles. (1986) (38)
- Kerr Effect in the Isotropic Phase of Some Nematogenic Compounds (1972) (38)
- ORIENTATIONAL OSCILLATIONS IN NEMATIC LIQUID CRYSTALS (1970) (38)
- Mean-field theory of statistical assemblies of sterically interacting lines (1983) (38)
- LANDAU THEORY OF THE LAMELLAR-TO-CUBIC PHASE TRANSITION (1990) (37)
- Torques in Sheared Nematic Liquid Crystals: A Simple Model in Terms of the Theory of Dense Fluids (1970) (36)
- Optically Active Smectic Liquid Crystal (1971) (35)
- Inherent Bounds to the Elasticity and Flexoelectricity of Liquid Crystals (1974) (34)
- Field dependent switching angle of a columnar pyrene (1995) (32)
- Stiffening of fluid membranes and entropy loss of membrane closure: Two effects of thermal undulations (1998) (31)
- Cryo-transmission electron microscopy of a superstructure of fluid dioleoylphosphatidylcholine (DOPC) membranes. (1997) (27)
- Measures of integration in calculating the effective rigidity of fluid surfaces (1987) (27)
- Orientation Pattern of Domains in Nematic p-Azoxyanisole (1969) (26)
- Chapter 14 – Tension-Induced Mutual Adhesion and a Conjectured Superstructure of Lipid Membranes (1995) (25)
- Optical studies of lecithin-membrane melting (1976) (24)
- Flow Alignment of Weakly Ordered Nematic Liquid Crystals (1972) (24)
- Two direct methods to calculate fluctuation forces between rigid objects embedded in fluid membranes (2001) (24)
- MACROSCOPIC FEATURES. d) Biological SystemsSOME THEORETICAL SHAPES OF RED BLOOD CELLS (1975) (24)
- Optical observation of rotationally symmetric lecithin vesicle shapes (1977) (23)
- Steric Interaction of Fluid Membranes (1978) (23)
- Effect of thermal undulations on the bending elasticity and spontaneous curvature of fluid membranes (2000) (21)
- Hysteresis in the deformation of nematic liquid crystal layers with homeotropic orientation (1974) (20)
- Bending tensions and the bending rigidity of fluid membranes (1993) (18)
- Polarity-dependent electro-optical effect of nematic liquid crystals (1974) (17)
- Elastic theory of helical fibers (1991) (16)
- Numerical study of self-avoiding loops on d-dimensional hypercubic lattices (1983) (15)
- Theory of vesicle budding (1990) (15)
- Flexibility and roughness of mixed and partially polymerized bilayers in terms of the hat model and local bending frustration (1994) (14)
- Phases of egg phosphatidylcholine in an abundance of water (1990) (14)
- Statistical mechanics of non-intersecting line systems? (1982) (14)
- Equilibrium Configurations of Fluid Membranes (1987) (13)
- Adhesion in egg lecithin multilayer systems produced by cooling (1990) (13)
- Applications of Liquid Crystals (1976) (13)
- Direct X-Ray Study of the Molecular Tilt in Dipalmitoyl Lecithin Bilayers (1980) (12)
- Special features of phosphatidylcholine vesicles as seen in cryo-transmission electron microscopy (1993) (12)
- Adhesion of lipid membranes induced by CrCl3 (2006) (12)
- Material properties of smectic layers and the formation of modulated and cubic smectic phases (1987) (12)
- Mean field theory of n-layer unbinding (1993) (10)
- Birefringence of Nematogenic Liquids Caused by Electrical Conduction (1971) (9)
- Collapse of giant phosphatidylcholine vesicles (1996) (9)
- Transformation of phosphatidylcholine multilayer systems in a large excess of water (1994) (9)
- STRUCTURE OF LIQUID CRYSTALS, ESPECIALLY ORDER IN TWO DIMENSIONS (1979) (7)
- Spontaneous and Induced Adhesion of Fluid Membranes (1989) (7)
- Holographic recording with an electrooptic liquid crystal cell. (1971) (7)
- Ripples in Tilted Bilayers and Lyotropic Smectics (1974) (6)
- Effects of a cosurfactant on the stretching and bending elasticities of a surfactant monolayer. [Erratum to document cited in CA117(24):240222b] (1993) (6)
- Pathways of vesiculation (1994) (5)
- Polymer stretching and membrane deformation in tethers of partially polymerized bilayer (1994) (5)
- Optical and electrical measurements of glow-curves in anthracene (1964) (5)
- Giant membranes of swollen phosphatidylethanolamines and glycolipids (1990) (5)
- Adhesion and Roughness of Biological Model Membranes (1990) (4)
- Defect model of the solid-to-smectic B phase transition (1976) (4)
- Capillary Viscometry of Cholesteric Liquid Crystals (1970) (4)
- Bending Elasticity of Fluid Membranes (2007) (3)
- Electron Microscopy of Biological Model Membranes (1992) (2)
- The fragmented state of lipid bilayers in water: Discovery of a lower consolute point (1999) (2)
- Possible Chromatographie Effect of Liquid-Crystalline Permeation (1973) (2)
- Field Effect Liquid Crystal (1970) (1)
- Determination of red cell shape from random cross-sections: a commentary. (1978) (1)
- Unbinding Transition and Mutual Adhesion in General of DGDG Membranes (1998) (1)
- Lipid Bilayer Fibers from Diastereomeric and Enantiomeric N-Octylaldonamides (I). (1988) (1)
- Elastic modulus of Gaussian curvature of partially polymerized surfactant membranes (1993) (1)
- Binding transition of PC membranes mediated by chromium ions (2004) (0)
- Deformation of Giant Lipid Vesicles in an Electric Field (1992) (0)
- Swelling and Separation of DOPC Multilayer Systems (2007) (0)
- Possibility of electrical conduction in filled bands (1967) (0)
- Undulations of a straight polymer chain embedded in a membrane (1996) (0)
- Electrooptically Switchable Columnar Liquid Crystals: Modeling and Conjectures (2006) (0)
- Erratum to: W. Helfrich: Possibility of electrical conduction in filled bands (1968) (0)
- Measures of integration in the statistical mechanics of polymers and liquid crystals (2000) (0)
- Phases and phase transitions of liquid crystals (1977) (0)
- FLUID MEMBRANES REPEL ONE ANOTHER; SOLID MEMBRANES MAY NOT CRUMPLE (1989) (0)
- Electro-optical light controlling cell (1972) (0)
- Membrane Roughness and Dispersive Phase as Effects of Higher‐Order Bending in Fluid Membranes (2007) (0)
- Anisotropy of the magnetic susceptibility of lecithin membranes (1978) (0)
- Polymer Stretching and Membrane Deformation in Tethers of Partially Polymerized Bilayer. [Erratum to document cited in CA121:256780] (1995) (0)
- Position-space renormalization of the self-avoiding loop gas on the square lattice (1983) (0)
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