Abstract: A Compact Optical Virus Detection Analyzer (COVDA) uses light scattering and fluorescence to detect nanometer (nm) and micrometer (um) sized particles, such as biological particles and can be used to detect viruses such as coronavirus including SAR-CoV-2 responsible for COVID-19, pollen and bacteria. It can be used for prescreening, rapid detection of suspicious people. COVDA involves experimental and theoretical methods for particle and virus detection using Tryptophan as a key biomarker.

Abstract: Incorporation of deuterium into the lipids, proteins, and/or genetic material in cells, tissues, organs, or organisms, including animals, such as humans, and plants, by administration of heavy water, allows for the spectral determination of levels of lipids, proteins, and/or genetic material using Raman spectroscopy, such as stimulated Raman spectroscopy. Following administration of a drug, changes in the relative amounts of lipid, protein, and/or genetic materials can be determined, and the efficacy, or lack thereof, of the administered drug can be determined.

Abstract: An Adam optimization-based Pointillism Deconvolution (A-PoD) algorithm for quantitatively measuring the nanoscopic co-localization of biomolecules and metabolic dynamics in organelles. The A-Pod algorithm may be applied to an image to generate a series of super resolved images. The A-PoD algorithm may also be used to process cellular images by interpolating cellular images along an optical axis, resampling the cellular images, and optimizing the cellular images with the A-PoD algorithm, where the resulting cellular images are deconvoluted cellular images.

Abstract: Multi-molecular hyperspectral PRM-SRS imaging technologies advantageously provide faster data processing and direct user-defined visualization with enhanced chemical specificity for distinguishing clinically relevant lipid subtypes in different organs and species. PRM-SMS may include quantifying the spectral similarity between an image pixel spectrum and a known reference spectrum.

Abstract: A Compact Optical Virus Detection Analyzer (COVDA) uses light scattering and fluorescence to detect nanometer (nm) and micrometer (um) sized particles, such as biological particles and can be used to detect viruses such as coronavirus including SAR-CoV-2 responsible for COVID-19, pollen and bacteria. It can be used for prescreening, rapid detection of suspicious people. COVDA involves experimental and theoretical methods for particle and virus detection using Tryptophan as a key biomarker.

Abstract: Incorporation of deuterium into the lipids, proteins, and/or genetic material in cells, tissues, organs, or organisms, including animals, such as humans, and plants, by administration of heavy water, allows for the spectral determination of levels of lipids, proteins, and/or genetic material using Raman spectroscopy, such as stimulated Raman spectroscopy. Following administration of a drug, changes in the relative amounts of lipid, protein, and/or genetic materials can be determined, and the efficacy, or lack thereof, of the administered drug can be determined.

Abstract: Supercontinuum (SC) (˜400 nm to ˜2500 nm) and a microscope produce enhanced microscopic images on sub-micron to cm scale of linear (?1) and nonlinear (?2, ?3, ?4 . . . ) processes via resonance including linear absorption, SHG, THG, SRG, SRL, SRS, 2PEF, 3PEF, 4PEF, and inverse Raman in a microscope for 2D and 3D imaging. Images and processes in 2D and 3D arise from electronic and vibrational resonances transitions in biological and medical tissues, cells, condensed matter applications. Resonant Stimulated Raman Scattering (RSRS) is proposed to improve vibrational imaging of biomaterials by using part of SC. Quantum mechanical processes from SC for 2 and 4 photons to improve resolution and imaging using entangled photons are described. The addition of time measuring instrument like a Streak camera and the scattering coefficient ?s? can be mapped to create images of tissue and biomaterial in 5D: Space (3D), Time, and Wavelength.

Abstract: Majorana photons are transmitted through a biological tissue sample to image the tissue. The Majorana photons have a circular polarization, a radial polarization or an azimuthal polarization. The transmitted photons are processed to produce a digital image of the biological tissue sample.

Abstract: A label free single or multi-photon optical excitation fluorescence spectroscopy for measuring the differences between the levels of fluorophores from tryptophan, collagen, reduced nicotinamide adenine dinucleotide (NADH), and flavins exist in brain samples from a of Alzheimer's disease (AD) and in normal (N) brain samples with label-free fluorescence spectroscopy. Relative quantities of these molecules are shown by the spectral profiles of the AD and N brain samples at excitation wavelengths and multi photons about 266 nm, 300 nm, 400 nm and 500 nm. The emission spectral profile levels of tryptophan and flavin were much higher in AD samples, while collagen emission levels were slightly lower and NADH levels were much lower in AD samples. These results yield a new optical method for detection of biochemical differences in animals and humans for Alzheimer's disease.

Abstract: Majorana photons are transmitted through a biological tissue sample to image the tissue. The Majorana photons have a circular polarization, a radial polarization or an azimuthal polarization. The transmitted photons are processed to produce a digital image of the biological tissue sample.

Abstract: A method is provided for deep tissue imaging using multi-photon excitation of a fluorescent agent. The fluorescent agent is irradiated with an ultrafast laser to produce an excited singlet state (Sn) which subsequently undergoes non-radiative relaxation to a first singlet state (S1). The S1 state undergoes fluorescence to the ground state S0 to produce an emission wavelength. Both the excitation and emission wavelengths are within the near infrared optical window, thereby permitting deep tissue penetration for both the incoming and outgoing signals.

Abstract: A nonlinear optical process on increasing the signal in SRS microscope by Resonant Stimulated Raman Scattering (RSRS) combines both RRS and SRS nonlinear processes, in absorber and host such a ?-carotene-methanol solution, Flavins, or other key absorbers in tissues. The observed effect of enhanced RSRS in small signal gain is attributed to RR process in absorber ?-carotene that transferring excess vibrations to host methanol from anharmonic vibrational interactions between the solute ?-carotene in resonance with the solvent methanol vibrations. SRS microscopy signals are improved in RSRS microscope for imaging vibrational states in lipids CH2 and proteins CH3 in cancer tissues from RR in Flavins or other native chromophores in tissue and for applications in other areas of neuroscience and biomedicine, potentially enhancing signals in the RSRS microscope by 2 to 1000 times.

Abstract: A nonlinear optical process on increasing the signal in SRS microscope by Resonant Stimulated Raman Scattering (RSRS) combines both RRS and SRS nonlinear processes, in absorber and host such a ?-carotene-methanol solution, Flavins, or other key absorbers in tissues. The observed effect of enhanced RSRS in small signal gain is attributed to RR process in absorber ?-carotene that transferring excess vibrations to host methanol from anharmonic vibrational interactions between the solute ?-carotene in resonance with the solvent methanol vibrations. SRS microscopy signals are improved in RSRS microscope for imaging vibrational states in lipids CH2 and proteins CH3 in cancer tissues from RR in Flavins or other native chromophores in tissue and for applications in other areas of neuroscience and biomedicine, potentially enhancing signals in the RSRS microscope by 2 to 1000 times.

Abstract: A label free single or multi-photon optical spectroscopy for measuring the differences between the levels of fluorophores from tryptophan, collagen, reduced nicotinamide adenine dinucleotide (NADH), and flavins exist in brain samples from a of Alzheimer's disease (AD) and in normal (N) brain samples with label-free fluorescence spectroscopy. Relative quantities of these molecules are shown by the spectral profiles of the AD and N brain samples at excitation wavelengths 266 nm, 300 nm, and 400 nm. The emission spectral profile levels of tryptophan and flavin were much higher in AD samples, while collagen emission levels were slightly lower and NADH levels were much lower in AD samples. These results yield a new optical method for detection of biochemical differences in animals and humans for Alzheimer's disease.

Abstract: Supercontinuum (SC) (˜400 nm to ˜2500 nm) and a microscope produce enhanced microscopic images on sub-micron to cm scale of linear (?1) and nonlinear (?2, ?3, ?4 . . . ) processes via resonance including linear absorption, SHG, THG, SRG, SRL, SRS. 2PEF, 3PEF, 4PEF, and inverse Raman in a microscope for 2D and 3D imaging. Images and processes in 2D and 3D arise from electronic and vibrational resonances transitions in biological and medical tissues, cells, condensed matter applications. Resonant Stimulated Raman Scattering (RSRS) is proposed to improve vibrational imaging of biomaterials by using part of SC. Quantum mechanical processes from SC for 2 and 4 photons to improve resolution and imaging using entangled photons are described. The addition of time measuring instrument like a Streak camera and the scattering coefficient ?s? can be mapped to create images of tissue and biomaterial in 5D: Space (3D), Time, and Wavelength.

Abstract: A method is provided for deep tissue imaging using multi-photon excitation of a fluorescent agent. The fluorescent agent is irradiated with an ultrafast laser to produce an excited singlet state (Sn) which subsequently undergoes non-radiative relaxation to a first singlet state (S1). The S1 state undergoes fluorescence to the ground state S0 to produce an emission wavelength. Both the excitation and emission wavelengths are within the near infrared optical window, thereby permitting deep tissue penetration for both the incoming and outgoing signals.