Richard Cisek
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View article: Second harmonic generation of myofibrils exhibits a polarization-resolved “gradient” effect
Second harmonic generation of myofibrils exhibits a polarization-resolved “gradient” effect Open
Polarization-resolved second harmonic generation microscopy (PSHG) was used to investigate the ultrastructure of individual myofibrils and collagen fibrils to visualize the ρ parameter. A gradient in the ρ values was experimentally observe…
View article: Polar organization of H&E dyes in histology tissue revealed by polarimetric nonlinear microscopy
Polar organization of H&E dyes in histology tissue revealed by polarimetric nonlinear microscopy Open
Structural organization of harmonophores used in hematoxylin (H) and eosin (E) staining is studied with polarimetric multimodal second-harmonic generation (SHG), third-harmonic generation (THG), and multiphoton excitation fluorescence (MPF…
View article: Polar organization of H&E dyes in histology tissue revealed by polarimetric nonlinear microscopy
Polar organization of H&E dyes in histology tissue revealed by polarimetric nonlinear microscopy Open
Structural organization of harmonophores used in hematoxylin (H) and eosin (E) staining is studied with polarimetric multimodal second-harmonic generation (SHG), third-harmonic generation (THG) and multiphoton excitation fluorescence (MPF)…
View article: Third-order nonlinear optical properties of a series of pyrroles and dipyrroles featuring π-conjugated substituents and linkers
Third-order nonlinear optical properties of a series of pyrroles and dipyrroles featuring π-conjugated substituents and linkers Open
The third-order nonlinear optical properties of a series of novel pyrrole-containing compounds were explored.
View article: Effect of out of plane orientation on polarization second harmonic generation of single collagen fibrils
Effect of out of plane orientation on polarization second harmonic generation of single collagen fibrils Open
Second harmonic generation (SHG) microscopy has emerged as a powerful technique for visualizing collagen organization within tissues. Amongst the many advantages of SHG is its sensitivity to collagen nanoscale organization, and its presume…
View article: Characterization of pathological stomach tissue using polarization-sensitive second harmonic generation microscopy
Characterization of pathological stomach tissue using polarization-sensitive second harmonic generation microscopy Open
Alterations in collagen ultrastructure between human gastric adenocarcinoma and normal gastric tissue were investigated using polarization-resolved second harmonic generation (PSHG) microscopy. Cylindrical and trigonal symmetries were assu…
View article: High numerical aperture imaging allows chirality measurement in individual collagen fibrils using polarization second harmonic generation microscopy
High numerical aperture imaging allows chirality measurement in individual collagen fibrils using polarization second harmonic generation microscopy Open
Second harmonic generation (SHG) microscopy is a commonly used technique to study the organization of collagen within tissues. However, individual collagen fibrils, which have diameters much smaller than the resolution of most optical syst…
View article: Investigation into the structure of crystalline maltodextrin particles by second harmonic generation microscopy
Investigation into the structure of crystalline maltodextrin particles by second harmonic generation microscopy Open
Crystalline maltodextrin particles (CMPs) were investigated using polarization-sensitive second harmonic generation (PSHG) microscopy to determine changes in their crystalline organization due to crystal type (A- and B-type) and hydration …
View article: Second harmonic generation microscopy of otoconia
Second harmonic generation microscopy of otoconia Open
The origin of second harmonic generation (SHG) signal in otoconia was investigated. SHG signal intensity from otoconia was compared to pure calcite crystals, given calcite is the primary component of otoconia and is known to emit surface S…
View article: Polarization-Sensitive Second Harmonic Generation Microscopy for Investigations of Diseased Collagenous Tissues
Polarization-Sensitive Second Harmonic Generation Microscopy for Investigations of Diseased Collagenous Tissues Open
The advancement of non-invasive quantitative optical diagnosis techniques such as polarization-sensitive second harmonic generation microscopy (PSHG) for diseases such as cancer presents opportunities for improving disease understanding an…
View article: Characterization of pathological thyroid tissue using polarization-sensitive second harmonic generation microscopy
Characterization of pathological thyroid tissue using polarization-sensitive second harmonic generation microscopy Open
View article: Live imaging of contracting muscles with wide-field second harmonic generation microscopy using a high power laser
Live imaging of contracting muscles with wide-field second harmonic generation microscopy using a high power laser Open
Wide-field second harmonic generation (SHG) microscopy was developed using a high-power (> 4 W) and high-repetition-rate (MHz range) laser oscillator to achieve fast SHG imaging over a large area (400 µm × 400 µm). The microscope was used …
View article: Characterization of Pancreatic Cancer Tissue Using Multiphoton Excitation Fluorescence and Polarization-Sensitive Harmonic Generation Microscopy
Characterization of Pancreatic Cancer Tissue Using Multiphoton Excitation Fluorescence and Polarization-Sensitive Harmonic Generation Microscopy Open
Thin tissue sections of normal and tumorous pancreatic tissues stained with hematoxylin and eosin were investigated using multiphoton excitation fluorescence (MPF), second harmonic generation (SHG), and third harmonic generation (THG) micr…
View article: Intravital imaging of osteocytes in mouse calvaria using third harmonic generation microscopy
Intravital imaging of osteocytes in mouse calvaria using third harmonic generation microscopy Open
Osteocytes are the most abundant cell in the bone, and have multiple functions including mechanosensing and regulation of bone remodeling activities. Since osteocytes are embedded in the bone matrix, their inaccessibility makes in vivo stu…
View article: Examination of Drosophila eye development with third harmonic generation microscopy
Examination of Drosophila eye development with third harmonic generation microscopy Open
Third harmonic generation (THG) microscopy can exploit endogenous harmonophores such as pigment macromolecules for enhanced image contrast, and therefore can be used without exogenous contrast agents. Previous studies have established that…
View article: Changes of collagen ultrastructure in breast cancer tissue determined by second-harmonic generation double Stokes-Mueller polarimetric microscopy
Changes of collagen ultrastructure in breast cancer tissue determined by second-harmonic generation double Stokes-Mueller polarimetric microscopy Open
Second-harmonic generation (SHG) double Stokes-Mueller polarimetric microscopy is applied to study the alteration of collagen ultrastructure in a tissue microarray containing three pathological human breast cancer types with differently ov…
View article: Second harmonic generation microscopy investigation of the crystalline ultrastructure of three barley starch lines affected by hydration
Second harmonic generation microscopy investigation of the crystalline ultrastructure of three barley starch lines affected by hydration Open
Second harmonic generation (SHG) microscopy is employed to study changes in crystalline organization due to altered gene expression and hydration in barley starch granules. SHG intensity and susceptibility ratio values (R'SHG ) are obtaine…
View article: Ultrastructural features of collagen in thyroid carcinoma tissue observed by polarization second harmonic generation microscopy
Ultrastructural features of collagen in thyroid carcinoma tissue observed by polarization second harmonic generation microscopy Open
Changes in collagen ultrastructure between malignant and normal human thyroid tissue were investigated ex vivo using polarization second harmonic generation (SHG) microscopy. The second-order nonlinear optical susceptibility tensor compone…
View article: Synchronization Model of Sarcomeres in Contracting Cardiomyocytes
Synchronization Model of Sarcomeres in Contracting Cardiomyocytes Open