OOIR: Observatory of International Research

Papers

(The TQCC of Applied Spectroscopy is 5. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-11-01 to 2025-11-01.)

Article	Citations
Advertising and Front Matter	51
State of Formic Acid Dissolved in Tar According to Infrared Spectroscopy	51
Monolithic Miniature Glass Spectrometer	44
Recognition of the Presence of Bone Fractures Through Physicochemical Changes in Diagenetic Bone	36
Advertising and Front Matter	35
Temperature and Thermal Diffusivity Diagnostics in Laminar Methane Flames Using Infrared Four-Wave Mixing Techniques	35
Expert System for Fourier Transform Infrared Spectra Recognition Based on a Convolutional Neural Network With Multiclass Classification	29
10 kHz Shifted-Excitation Raman Difference Spectroscopy with Charge-Shifting Charge-Coupled Device Read-Out for Effective Mitigation of Dynamic Interfering Backgrounds	26
Mid-Infrared Dispersion Spectroscopy as a Tool for Monitoring Time-Resolved Chemical Reactions on the Examples of Enzyme Kinetics and Mutarotation of Sugars	26
Features of Wax Appearance Temperature Determination of Waxy Crude Oil Using Attenuated Total Reflection Fourier Transform Infrared Spectroscopy Under Ambient and High Pressure	25
Symmetric Non-Monochromatic Light as Reference in Fourier Transform Spectrometers	22
Determination of the pK_a Value of Protonated Mono and Polyamine in Solution Using Fourier Transform Infrared Titration	21
Raman Analysis of Orientation and Crystallinity in High T_g, Low Crystallinity Electrospun Fibers	21
Co-Localized Infrared–Raman Spectroscopy: An Innovative Approach for the Quantitative In Situ Analysis of Gas Mixtures at High Pressures	19
Quantitative Detection of the Raw Ore Turquoise Based on Laser-Induced Breakdown Spectroscopy Technology	17
Investigation of Thin Silicone Films on Opaque Solid Surfaces Using Coherent Raman Scattering Imaging	16
Quantification of Elevated Hydrogen Cyanide (HCN) Concentration Typical in a Residential Fire Environment Using Mid-IR Tunable Diode Laser	16
In Vivo Near-Infrared Noninvasive Glucose Measurement and Detection in Humans	16
Local Adaptive Fusion Regression (LAFR) for Local Linear Multivariate Calibration: Application to Large Datasets	15
Corrigendum	15
Novel Raman Spectroscopy Method for Solutions in Uniform, High-Strength Electric Field	14
Optical Characterization of Bitumen: Inspecting the Quantum Size Effect in the Nanostructured Phase	14
Monitoring Noble Gases (Xe and Kr) and Aerosols (Cs and Rb) in a Molten Salt Reactor Surrogate Off-Gas Stream Using Laser-Induced Breakdown Spectroscopy (LIBS)	13
Raman Spectroscopy Applied to Early Detection of Clostridium Infection in Milk	13
Bleach Cleaning of Commercially Available Gold Nanopillar Arrays for Surface-Enhanced Raman Spectroscopy (SERS)	13

Bessel Beam Coherent Anti-Stokes Raman Scattering Spectroscopy for Turbulent Flow Diagnosis	13
Fourier Transform Infrared Spectroscopy and Vibrational Circular Dichroism Assisted Elucidation of the Solution-State Supramolecular Speciation in Racemic and Enantiopure Ketoprofen	13
Feasibility of In-Line Raman Spectroscopy for Quality Assessment in Food Industry: How Fast Can We Go?	12
Enzyme Dynamics in Attoliter-Volume Electrochemical Zero-Mode Waveguides with On-Demand In-Situ Hydrogen Peroxide Delivery and Consumption	12
Widefield Super-Resolution Infrared Spectroscopy and Imaging of Autofluorescent Biological Materials and Photosynthetic Microorganisms Using Fluorescence Detected Photothermal Infrared (FL-PTIR)	12
Comparison of Convolutional and Conventional Artificial Neural Networks for Laser-Induced Breakdown Spectroscopy Quantitative Analysis	12
Characterizing Variability in Non-Invasive Hydration Monitoring Using Raman Spectroscopy	11
Simultaneous Application of Raman and Laser-Induced Breakdown Spectroscopy in the Gas Phase with a Single Laser and Detector	11
Spectroscopic Investigation of Catalyst Inks and Thin Films Toward the Development of Ionomer Quality Control	11
Wheat Flour Discrimination Using Two-Dimensional Correlation Spectroscopy and Deep Learning	10
Neurodevelopmental Process Monitoring of Cytosine Arabinoside-Exposed Neurons Using Raman Spectroscopy	10
Brillouin Spectroscopy of Binary Phospholipid–Cholesterol Bilayers	10
Characterization and Identification of Diverse Fruit Rot Fungal Species Using Microscopic and Spectroscopic Approaches	10
Spectroscopic Studies of BA Class Liquid Crystals in the 6–15 THz Range Using the Fourier Transform Infrared (FT-IR) Method	10
Infrared Spectroscopy-Determined Bone Compositional Changes Associated with Anti-Resorptive Treatment of the oim/oim Mouse Model of Osteogenesis Imperfecta	10
Integrating Laser-Induced Breakdown Spectroscopy and Ensemble Learning as Minimally Invasive Optical Screening for Diabetes	10
Advertising and Front Matter	10
Advertising and Front Matter	10
Spectroscopic Study of Micro-/Nano-Hydroxyapatite Polymer Composites Modified with Carbon Nanofibers	10
Mid-Infrared Generated Laser-Induced Grating Signals in Methane-Containing Gas Mixtures as Indicators of Composition, Pressure, and Temperature	10
Terahertz Spectroscopy Study of the Stereoisomers of Threonine	9
Advertising and Front Matter	9
Phosphorus Modulated Peroxidase-Like Activity of Carbon Dots for Colorimetric Detection of Acid Phosphatase	9
Determination of Provenance Soil Type Using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) Analyses of Pinus ponderosa Ash	9
Characterization of Animal Protein-Based Binders in Ancient Chinese Wall Paintings Using Atomic Force Microscopy and Fourier Transform Infrared Spectroscopy	9
Advertising and Front Matter	9
Principal Component Analysis and Near-Infrared Spectroscopy as Noninvasive Blood Glucose Assay Methods	9
Porphyrin Aluminum Metal–Organic Framework in Liquid Water, its Interaction with the Oxidized Organosulfur Compound Diethyl Sulfoxide, and its Sorption from Aqueous Solution	9
Triplet Network for One-Shot Raman Spectrum Recognition	9
EXPRESS: Non-Invasive Assessment of the Non-Melanoma Skin Tumor Oxygenation Status by Hyperspectral Imaging: a Pilot Study	8
Deadliest Animals with the Thinnest Wings: Near-Infrared Properties of Tropical Mosquitoes	8
Temporal Profile of Nonresonant Sum-Frequency Signal from Single-Crystal Silicon Depends on Crystal Orientation	8
Laser-Induced Plasmas of Plutonium Dioxide in a Double-Walled Cell	8
Spatial Resolution of Micro-Raman Spectroscopy for Particulate Lithium Iron Phosphate (LiFePO ₄ )	8
Congruence Concept for Comparison of Spectra	8
Magnetic-Field-Confined Laser Induced Kohl Plasma: Elemental Analysis and Plasma Characterization	8
Fluorescence Resonance Energy Transfer (FRET) as a Spectroscopic Ruler for the Investigation of Protein Induced Lipid Membrane Curvature: Bacteriorhodopsin and Bacteriorhodopsin Analogs in Model Lipid	8
Fatty Acid Determination in Human Milk Using Attenuated Total Reflection Infrared Spectroscopy and Solvent-Free Lipid Separation	8
Innovative Substrate-Integrated Hollow Waveguide Coupled Attenuated Total Reflection Sensors for Quantum Cascade Laser Based Infrared Spectroscopy in Harsh Environments	8
Advertising and Front Matter	8
Coherent Anti-Stokes Raman Scattering Measurements of Time and Length Scales of Temperature Fluctuations in a Turbulent Flame	7
Two-Dimensional Correlation Spectroscopy (2D-COS) Analysis of Evolving Hyperspectral Images	7
Detection of Bioactive Metabolites in Escherichia Coli Cultures Using Surface-Enhanced Raman Spectroscopy	7
Determination of Aminophylline in Human Serum Using Hydrogel Microspheres for Coupled Surface-Enhanced Raman Spectroscopy (SERS) and Solid-Phase Extraction	7
A Calibration-Free Optical Emission Spectroscopic Method to Determine the Composition of a Spark Discharge Plasma Used for AuAg Binary Nanoparticle Synthesis	7
Analysis of Small Area Metal Surfaces Using Infrared External Reflection Spectroscopy	7
Analysis of Lithium Aging Using Machine Learning-Enhanced Spectroscopy Techniques	7
Dynamic Multivariate Outlier Detection Algorithm Using Ultraviolet Visible Spectroscopy for Monitoring Surface Water Contamination With Hydrological Fluctuation in Real-Time	7
Tabular Two-Dimensional Correlation Analysis for Multifaceted Characterization Data	7
Studies of Protein Binding to Biomimetic Membranes Using a Group of Uniform Materials Based on Organic Salts Derived From 8-Anilino-1-naphthalenesulfonic Acid	7

Determination of H₂ Densities Over a Wide Range of Temperatures and Pressures Based on the Spectroscopic Characterization of Raman Vibrational Bands	7
Accurate Determination of Trace Cadmium in Soil Samples with Graphite Furnace Atomic Absorption Spectrometry Using Metal–Organic Frameworks as Matrix Modifiers	7
Exploring the Clinical Utility of Raman Spectroscopy for Point-of-Care Cardiovascular Disease Biomarker Detection	7
Nitrate Classification Based on Optical Absorbance Data Using Machine Learning Algorithms for a Hydroponics System	7
Dependence on the Lens-to-Target Distance and with the Laser Energy at Constant Irradiance of the Laser-Induced Breakdown Spectroscopy Signal	7
First-Order Individual Gas Sensors as Next Generation Reliable Analytical Instruments	7
Feasibility of a Fiber-Dispersive Raman Spectrometer for Biomarker Detection	7
Laser Ablation Plasmas and Spectroscopy for Nuclear Applications	6
Coomassie Brilliant Blue G for Smart Colorimetric Determination of the Ionic Surfactants in Triton X-100 Solutions	6
EXPRESS: Combining Polarization Analysis and Isothermal Crystallization Behavior Elucidated by Two-Dimensional Correlation Spectroscopy for Understanding the Crystallization Properties of Poly[(R)-3-H	6
Optical Tomography of Polymeric Microsphere Layers Using Confocal Raman Microscopy	6
Two-Dimensional Correlation Spectroscopy (2D-COS) Tracking of the Formation of Selected Transition Metal Compounds Cu(II) and Cd(II) with Cinchonine and Their Impact on Model Components of Erythrocyte	6
Near Real-Time Measurement of Airborne Carbon Nanotubes with Metals Using Raman–Spark Emission Spectroscopy	6
Raman Spectroscopy as an Effective Tool for Assessment of Structural Quality and Polymorphism of Gallium Oxide (Ga₂O₃) Thin Films	6
Ultraviolet Resonance Raman Spectra of Serum Albumins	6
Integrated Optics Waveguides and Mesoporous Oxides for the Monitoring of Volatile Organic Compound Traces in the Mid-Infrared	6
Circular Dichroism Spectral Similarity Plots to Extend Validation and Correction to All Measured Wavelengths	6
Advertising and Front Matter	6
Laser-Induced Fluorescence (LIF) Spectroscopy of Trapped Molecular Ions in the Gas Phase	6
Ante- and Post-Mortem Fracture Identification Protocol Based on Low- and High-Level Fusion Using Fourier Transform Infrared Spectroscopy and Raman Spectroscopy Association	6
Non-Destructive Prediction of the Mixed Mineral Pigment Content of Ancient Chinese Wall Paintings Based on Multiple Spectroscopic Techniques	6
Landmark Publications in Analytical Atomic Spectrometry: Fundamentals and Instrumentation Development	6
Sub-Nanosecond Digital Signal Processing of Photomultiplier Tube Response Enabling Multiphoton Counting in Raman Spectroscopy	6
Acute Leukemia Diagnosis Through AI-Enhanced Attenuated Total Reflection Fourier Transform Infrared Spectroscopy of Peripheral Blood Smears	6
Quasi-Non-Destructive Estimation of Concrete Compression Strength Using Laser-Induced Breakdown Spectroscopy and Multivariate Analysis	6
Model Fitting and Analysis of Dielectric Properties in Alcohol–Fuel Blends Using Terahertz and Gigahertz Spectroscopies	6
Active Surface-Enhanced Raman Spectroscopy (SERS): A Novel Concept for Enhancing Signal Contrast in Complex Matrices Using External Perturbation	5
Photoacoustic Spectroscopy Gas Detection Technology Research Progress	5
Application of Infrared and Near-Infrared Microspectroscopy to Microplastic Human Exposure Measurements	5
Identification of Relevant Spectral Ranges in Laser-Induced Breakdown Spectroscopy Imaging Using the Fourier Space	5
Feature Selection and Spectral Indices for Identifying Maize Stress Types	5
Influence of Different Measuring Backgrounds on the Classification of Multilayer Polyolefin Films Using a Near-Infrared Handheld Spectrometer	5
Standoff Deep Ultraviolet Raman Spectrometer for Trace Detection	5
Compact Radio Frequency Discharge-Pumped Slab CO Laser System with a Zinc Germanium Phosphide (ZnGeP₂) Sum-Frequency Generator for Remote Sensing of the Atmosphere	5
Plasma Parameters During Nanoparticle-Enhanced Laser-Induced Breakdown Spectroscopy (NELIBS) in the Presence of Nanoparticle–Protein Conjugates	5
Growth Kinetics Monitoring of Gram-Negative Pathogenic Microbes Using Raman Spectroscopy	5
In Situ Raman Spectroscopy Monitoring of Material Changes During Proton Irradiation	5
Attenuated Total Reflection Infrared and Far-Infrared, and Raman Spectroscopy Studies of Minerals, Rocks, and Biogenic Minerals	5
Disease-Associated Multimolecular Signature in the Urine of Patients with Lyme Disease Detected Using Raman Spectroscopy and Chemometrics	5
Understanding Advanced Attenuated Total Reflection Correction: The Low Absorbance Assumption	5
Crude Oil Density Prediction Improved by Multiblock Analysis of Fourier Transform Ion Cyclotron Resonance Mass Spectrometry, Fourier Transform Infrared, and Near-Infrared Spectroscopy Data	5
Characteristic Spectral Features of Terra Preta (TP) in the 5–15 Terahertz Range	5
Deep-Learning-Enabled High-Fidelity Absorbance Spectra from Distorted Dual-Comb Absorption Spectroscopy for Gas Quantification Analysis	5
Two-Dimensional (2D) Hybrid Method: Expanding 2D Correlation Spectroscopy (2D-COS) for Time Series Analysis	5
Molecular Emissions from Stretched Excitation Pulse in Nanosecond Phase-Selective Laser-Induced Breakdown Spectroscopy of TiO₂ Nanoaerosols	5
Isotopic Signatures of Lithium Carbonate and Lithium Hydroxide Monohydrate Measured Using Raman Spectroscopy	5
In-Line Chemical Composition Monitoring for the Injection Molding Process of Biodegradable Polymer Blends Using Simultaneous Measurement of Near-Infrared Diffuse Reflectance and Transmission Spectra	5
Time-Dependent Intensity Ratio-Based Approach for Estimating the Temperature of Laser Produced Plasma	5
Reaction Analysis and Process Optimization with Online Infrared Data Based on Kinetic Modeling and Partial Least Squares Quantitation	5
Filter Fluorometer Calibration Without the Fluorometer	5
Noncontact Fiber Optic Probe for Clinical Applications of Raman Spectroscopy	5
Advertising and Front Matter	5
A Spectroscopic Method for Distinguishing Two Novel Sandwich-Type Tungsten Oxide Cluster Compounds	5
Continuous Monitoring of Sulfur Dioxide Removal Using K-Band Molecular Rotational Resonance Spectroscopy	5
Leveraging Hydrogen Bond-Induced Peak Shifting to Determine Alcohol Concentration in Suspect Gel Hand Sanitizers Using Portable Infrared and Handheld Raman Spectrometers	5
Crosstalk-Free Excitation Scheme for Quantitative OH Laser-Induced Fluorescence in Environments Containing Excited CO	5
Sensitive Detection of an Erbium Isotope in an Atomic Beam Using Cavity Ring-Down Spectroscopy	5
Impact of Pulsing a Radio Frequency Glow Discharge Lamp on Emission Yields and Analytical Figures of Merit in Glow Discharge Optical Emission Spectroscopy	5
Theoretical Calculation and Simulation of Peak Distortion of Absorption Spectra of Complex Mixtures	5
Demixing and Analysis of Complex Biological Raman Hyperspectra Based on Peak Fitting, Amplitude Trend Clustering, and Spectrum Reconstruction	5
Evaluation of Breast Cancer Gene Type 1 (BRCA1) Protein Levels in Cancer Tissue Using Surface-Enhanced Raman Spectroscopy	5
A Sensitive Fluorescence Sensor for Tetracycline Determination Based on Adenine Thymine-Rich Single-Stranded DNA-Templated Copper Nanoclusters	5
Standoff Interaction Assessment Using High-Energy Laser–Induced Oxidation Spectroscopy	5