OOIR: Observatory of International Research

Papers

(The TQCC of Applied Spectroscopy is 4. 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 2020-11-01 to 2024-11-01.)

Article	Citations
Exploration of Principal Component Analysis: Deriving Principal Component Analysis Visually Using Spectra	145
Raman Spectroscopy for the Analysis of Microplastics in Aquatic Systems	118
Infrared Spectroscopy of Blood	34
Detection of Bioactive Metabolites in Escherichia Coli Cultures Using Surface-Enhanced Raman Spectroscopy	34
Beyond Beer’s Law: Quasi-Ideal Binary Liquid Mixtures	29
Chemometrics for Raman Spectroscopy Harmonization	24
Multivariate Analysis Aided Surface-Enhanced Raman Spectroscopy (MVA-SERS) Multiplex Quantitative Detection of Trace Fentanyl in Illicit Drug Mixtures Using a Handheld Raman Spectrometer	23
Theoretical Simulation of Near-Infrared Spectrum of Piperine: Insight into Band Origins and the Features of Regression Models	21
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)	21
Review of Existing Standards, Guides, and Practices for Raman Spectroscopy	21
Calibration of the SHERLOC Deep Ultraviolet Fluorescence–Raman Spectrometer on the Perseverance Rover	20
Ultraviolet Absorption Cross-Sections of Ammonia at Elevated Temperatures for Nonintrusive Quantitative Detection in Combustion Environments	20
Chemometrics and Experimental Design for the Quantification of Nitrate Salts in Nitric Acid: Near-Infrared Spectroscopy Absorption Analysis	19
Polarization Sensitive Photothermal Mid-Infrared Spectroscopic Imaging of Human Bone Marrow Tissue	19
Application of Infrared Reflectance Spectroscopy on Plastics in Cultural Heritage Collections: A Comparative Assessment of Two Portable Mid-Fourier Transform Infrared Reflection Devices	18
Vibrational Spectroscopy for Detection of Diabetes: A Review	18
Prediction of α-Lactalbumin and β-Lactoglobulin Composition of Aqueous Whey Solutions Using Fourier Transform Mid-Infrared Spectroscopy and Near-Infrared Spectroscopy	17
Feasibility of In-Line Raman Spectroscopy for Quality Assessment in Food Industry: How Fast Can We Go?	17
Quantification of Lanthanides in a Molten Salt Reactor Surrogate Off-Gas Stream Using Laser-Induced Breakdown Spectroscopy	16
Interband Cascade Laser Arrays for Simultaneous and Selective Analysis of C1–C5 Hydrocarbons in Petrochemical Industry	16
A Sensitive Fluorescence Sensor for Tetracycline Determination Based on Adenine Thymine-Rich Single-Stranded DNA-Templated Copper Nanoclusters	16
Two-Trace Two-Dimensional Correlation Spectroscopy Study of the Crystallization Behavior of Bioplastics	15
Estimation of the Relative Abundance of Quartz to Clay Minerals Using the Visible–Near-Infrared–Shortwave-Infrared Spectral Region	15
Clinical Spectroscopy: Lost in Translation?	15
A Sensitive Surface-Enhanced Raman Spectroscopy Method for Detecting Tetracycline in Milk	13

Fourier Transform Infrared Imaging Analysis of Interactions Between Polypropylene Grafted with Maleic Anhydride and Silica Spheres Using Two-Trace Two-Dimensional Correlation Mapping	13
Intermolecular Interactions in the Polymer Blends Under High-Pressure CO₂ Studied Using Two-Dimensional Correlation Analysis and Two-Dimensional Disrelation Mapping	13
Laser Ablation Plasmas and Spectroscopy for Nuclear Applications	13
Femtosecond Single-Pulse and Orthogonal Double-Pulse Laser-Induced Breakdown Spectroscopy (LIBS): Femtogram Mass Detection and Chemical Imaging with Micrometer Spatial Resolution	13
Determination of Soil Constituents Using Shifted Excitation Raman Difference Spectroscopy	13
Machine Learning-Assisted Sampling of Surfance-Enhanced Raman Scattering (SERS) Substrates Improve Data Collection Efficiency	13
Single-Molecule Fluorescence Techniques for Membrane Protein Dynamics Analysis	13
Raman Spectroscopy Coupled with Reflectance Spectroscopy as a Tool for the Characterization of Key Hydrothermal Alteration Minerals in Epithermal Au–Ag Systems: Utility and Implications for Mineral Ex	12
In Vivo Near-Infrared Noninvasive Glucose Measurement and Detection in Humans	12
Hydration and Ion-Pair Formation of NaNO₃(aq): A Vibrational Spectroscopic and Density Functional Theory Study	11
Self-Optimization of Continuous Flow Electrochemical Synthesis Using Fourier Transform Infrared Spectroscopy and Gas Chromatography	11
Colon Cancer Grading Using Infrared Spectroscopic Imaging-Based Deep Learning	11
Design Considerations for Discrete Frequency Infrared Microscopy Systems	11
Probing the Bovine Hemoglobin Adsorption Process and its Influence on Interfacial Water Structure at the Air–Water Interface	11
Group and Basis Restricted Non-Negative Matrix Factorization and Random Forest for Molecular Histotype Classification and Raman Biomarker Monitoring in Breast Cancer	11
Archaeological Mortar Characterization Using Laser-Induced Breakdown Spectroscopy (LIBS) Imaging Microscopy	11
A Simple Sample Preparation Method to Significantly Improve Fourier Transform Infrared (FT-IR) Spectra of Microplastics	11
Real-Time Measurement of SO₂, H₂S, and CS₂ Mixed Gases Using Ultraviolet Spectroscopy and a Least Squares Algorithm	10
Detecting Minerals and Organics Relevant to Planetary Exploration Using a Compact Portable Remote Raman System at 122 Meters	10
Microwave-Assisted Synthesis of Red Emitting Copper Nanoclusters Using Trypsin as a Ligand for Sensing of Pb²⁺ And Hg²⁺ Ions in Water and Tobacco Samples	10
Combined Spectroscopic Analysis of Terrestrial Analogs from a Simulated Astronaut Mission Using the Laser-Induced Breakdown Spectroscopy (LIBS) Raman Sensor: Implications for Mars	10
Raman Spectroscopy for Adipose Tissue Assessment in Rat Models of Obesity and Type 1 Diabetes	10
Measuring Nd(III) Solution Concentration in the Presence of Interfering Er(III) and Cu(II) Ions: A Partial Least Squares Analysis of Ultraviolet–Visible Spectra	10
Gold Nanoparticle-Enhanced Laser-Induced Breakdown Spectroscopy and Three-Dimensional Contour Imaging of an Aluminum Alloy	9
Quantification of Starch Order in Physically Modified Rice Flours Using Small-Angle X-ray Scattering (SAXS) and Fourier Transform Infrared (FT-IR) Spectroscopy	9
Analyzing the Water Confined in Hydrogel Using Near-Infrared Spectroscopy	9
Investigating the Performances of Wide-Field Raman Microscopy with Stochastic Optical Reconstruction Post-Processing	9
Two-Step Partial Least Squares-Discriminant Analysis Modeling for Accurate Classification of Edible Sea Salt Products Using Laser-Induced Breakdown Spectroscopy	9
Interlaboratory Application of Raman CO₂ Densimeter Equations: Experimental Procedure and Statistical Analysis Using Bootstrapped Confidence Intervals	9
Solvent Effect on Assembling and Interactions in Solutions of Phenol: Infrared Spectroscopic and Density Functional Theory Study	9
Assessment of Bulk Composition of Heterogeneous Food Matrices Using Raman Spectroscopy	9
On the Limit of Detection in Infrared Spectroscopic Imaging	9
Pushing the Limits of Surface-Enhanced Raman Spectroscopy (SERS) with Deep Learning: Identification of Multiple Species with Closely Related Molecular Structures	8
Infrared Refraction Spectroscopy	8
Augmented Two-Dimensional Correlation Spectroscopy for the Joint Analysis of Correlated Changes in Spectroscopic and Disparate Sources	8
Quantitative Hydrogen Chloride Detection in Combustion Environments Using Tunable Diode Laser Absorption Spectroscopy with Comprehensive Investigation of Hot Water Interference	8
Burmese Amber Compared Using Micro-Attenuated Total Reflection Infrared Spectroscopy and Ultraviolet Imaging	8
Comparison of Spectroscopic Techniques for Determining the Peroxide Value of 19 Classes of Naturally Aged, Plant-Based Edible Oils	8
Critical Evaluation of Spectral Resolution Enhancement Methods for Raman Hyperspectra	8
Accurate Determination of Trace Cadmium in Soil Samples with Graphite Furnace Atomic Absorption Spectrometry Using Metal–Organic Frameworks as Matrix Modifiers	8
Probing Protein Secondary Structure Influence on Active Centers with Hetero Two-Dimensional Correlation (Resonance) Raman Spectroscopy: A Demonstration on Cytochrome C	8
Crystal Structure-Free Method for Dielectric and Polarizability Characterization of Crystalline Materials at Terahertz Frequencies	8
Terahertz Time-Domain Spectroscopy in Reflection Configuration for Inorganic and Mineral Pigment Identification	7
Calculation of Spectral Optical Constants Using Combined Ellipsometric and Reflectance Methods for Smooth and Rough Bulk Samples	7
Raman Spectroscopic Detection and Quantification of Macro- and Microhematuria in Human Urine	7
Improved Wavelength Calibration by Modeling the Spectrometer	7
Effective Medium Model Applied to Biopolymer Solutions	7
Spectral Reflectance Reconstruction from Red-Green-Blue (RGB) Images for Chlorophyll Content Detection	7
Deep Learning Models for Data-Driven Laser Induced Breakdown Spectroscopy (LIBS) Analysis of Interstitial Oxygen Impurities in Czochralski-Si Crystals	7
Intensity Enhancement of a Two-Dimensional Asynchronous Spectrum Without Noise Level Fluctuation Escalation Using a One-Dimensional Spectra Sequence Change	7

Comparison of Convolutional and Conventional Artificial Neural Networks for Laser-Induced Breakdown Spectroscopy Quantitative Analysis	7
Disease-Associated Multimolecular Signature in the Urine of Patients with Lyme Disease Detected Using Raman Spectroscopy and Chemometrics	7
Inline Raman Spectroscopy and Indirect Hard Modeling for Concentration Monitoring of Dissociated Acid Species	7
Tire Classification by Elemental Signatures Using Laser-Induced Breakdown Spectroscopy	7
Twice-Modulated Light in Fourier Transform Infrared (FT-IR) Spectrometers from Reflective Samples: Avoiding Distorted Intensity Values	7
Attenuated Total Reflection (ATR) Micro-Fourier Transform Infrared (Micro-FT-IR) Spectroscopy to Enhance Repeatability and Reproducibility of Spectra Derived from Single Specimen Organic-Walled Dinofl	7
Classification of Semiconductors Using Photoluminescence Spectroscopy and Machine Learning	7
Wavelength Calibration Uncertainty in Protein Circular Dichroism Data Bank Spectra	7
Photoacoustic Spectroscopy Gas Detection Technology Research Progress	6
Linearly Polarized Infrared Spectroscopy for the Analysis of Biological Materials	6
Probing Heterogeneity in Attenuated Total Reflection Surface-Enhanced Infrared Absorption Spectroscopy (ATR-SEIRAS) Response with Synchrotron Infrared Microspectroscopy	6
Transmission Infrared Microscopy and Machine Learning Applied to the Forensic Examination of Original Automotive Paint	6
Impact of Imperfect Data on the Performance of Algorithms to Compare Near-Ultraviolet Circular Dichroism Spectra	6
Thermal Camera-Based Fourier Transform Infrared Thermospectroscopic Imager	6
Baseline Correction Based on a Search Algorithm from Artificial Intelligence	6
Infrared Spectroscopy-Determined Bone Compositional Changes Associated with Anti-Resorptive Treatment of the oim/oim Mouse Model of Osteogenesis Imperfecta	6
Up-Conversion Luminescence Processes in NaLaF₄ Doped with Tm³⁺ and Yb³⁺ and Dependence on Tm³⁺ Concentration and Temperature	6
Mesoporous Zirconia Coating for Sensing Applications Using Attenuated Total Reflection Fourier Transform Infrared (ATR FT-IR) Spectroscopy	6
Salivary Raman Spectroscopy: Standardization of Sampling Protocols and Stratification of Healthy and Oral Cancer Subjects	6
Characterization and Optimization of a Spectral Window for Direct Gaseous Uranium Hexafluoride Enrichment Assay Using Laser-Induced Breakdown Spectroscopy	6
Photoacoustic Spectroscopy and Hyperglycemia in Experimental Type 1 Diabetes	5
Infrared Spectroscopy to Analyze Sexual Dimorphism of Hard Dental Tissue Maturation at Eruption in Patients with Connective Tissue Dysplasia	5
Attenuated Total Reflection–Far-Ultraviolet Spectroscopy and Quantum Chemical Calculations of the Electronic Structure of the Top Surface and Bulk of Polyethylenes with Different Crystallinities	5
Mid-Infrared Reflectance Spectroscopy Based on External Cavity Quantum Cascade Lasers for Mineral Characterization	5
Revealing Lipid Body Formation and its Subcellular Reorganization in Oleaginous Microalgae Using Correlative Optical Microscopy and Infrared Nanospectroscopy	5
An Interactive Spectral Analysis Tool for Chemical Identification and Quantification of Gas-Phase Species in Complex Spectra	5
Plasma Parameters During Nanoparticle-Enhanced Laser-Induced Breakdown Spectroscopy (NELIBS) in the Presence of Nanoparticle–Protein Conjugates	5
Feasibility of Using Boltzmann Plots to Evaluate the Stark Broadening Parameters of Cu(I) Lines	5
Adversarial Data Augmentation and Transfer Net for Scrap Metal Identification Using Laser-Induced Breakdown Spectroscopy Measurement of Standard Reference Materials	5
Quantification of Elevated Hydrogen Cyanide (HCN) Concentration Typical in a Residential Fire Environment Using Mid-IR Tunable Diode Laser	5
Laser-Induced Breakdown Spectroscopy Combined with Temporal Plasma Analysis of C₂ Molecular Emission for Carbon Analysis in Coal	5
Detection and Classification of Bacterial Cells After Centrifugation and Filtration of Liquid Specimens Using Laser-Induced Breakdown Spectroscopy	5
Innovative Substrate-Integrated Hollow Waveguide Coupled Attenuated Total Reflection Sensors for Quantum Cascade Laser Based Infrared Spectroscopy in Harsh Environments	5
Quantification of Rare Earth Elements in the Parts Per Million Range: A Novel Approach in the Application of Laser-Induced Breakdown Spectroscopy	5
Single-Bubble Sonoluminescence of Colloidal Suspensions as a New Technique for Sonoluminescent Spectroscopic Analysis	5
Functionalization of Gold Nanostars with Melamine for Colorimetric Detection of Uric Acid	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
Exploring Surface-Enhanced Raman Spectroscopy (SERS) Characteristic Peaks Screening Methods for the Rapid Determination of Chlorpyrifos Residues in Rice	5
Performance Improvement of Handheld Raman Spectrometer for Mixture Components Identification Using Fuzzy Membership and Sparse Non-Negative Least Squares	5
Predicting the Refractive Index of Tissue Models Using Light Scattering Spectroscopy	5
Underwater Time-Gated Standoff Raman Sensor for In Situ Chemical Sensing	5
Construction of a Carcinoembryonic Antigen Surface-Enhanced Raman Spectroscopy (SERS) Aptamer Sensor Based on the Silver Nanorod Array Chip	5
A Versatile Method for Quantitative Analysis of Total Iron Content in Iron Ore Using Laser-Induced Breakdown Spectroscopy	5
Visualization of Inter- and Intramolecular Interactions in Poly(3-hydroxybutyrate)/Poly(L-lactic acid) (PHB/PLLA) Blends During Isothermal Melt Crystallization Using Attenuated Total Reflec	5
Quantitative Raman Cross-Sections and Band Assignments for Fentanyl and Fentanyl Analogs	5
Characterization of Animal Protein-Based Binders in Ancient Chinese Wall Paintings Using Atomic Force Microscopy and Fourier Transform Infrared Spectroscopy	5
Quantification of Drugs in Brain and Liver Mimetic Tissue Models Using Raman Spectroscopy	5
Disposable Coverslip for Rapid Throughput Screening of Malaria Using Attenuated Total Reflection Spectroscopy	5
Remote Raman Sensing Using a Single-Grating Monolithic Spatial Heterodyne Raman Spectrometer: A Potential Tool for Planetary Exploration	5
Laser-Induced Fluorescence (LIF) Spectroscopy of Trapped Molecular Ions in the Gas Phase	5
A Portable Infrared Attenuated Total Reflection Spectrometer for Food Analysis	4
Spectral Emission Signatures from Cased High‐Explosive Charges	4
Analysis of Nanostar Reshaping Kinetics for Optimal Substrate Fabrication	4
Fatty Acid Determination in Human Milk Using Attenuated Total Reflection Infrared Spectroscopy and Solvent-Free Lipid Separation	4
Chemical Characterization Using Laser-Induced Breakdown Spectroscopy of Products Released from Lithium-Ion Battery Cells at Thermal Runaway Conditions	4
Selectivity Quantification with the Fluorescent Quantitative Model-Assisted Semi-Selective Probe (Carbon Dots): Accurate Determination of Chlortetracycline in Aqueous Environments with Interference	4
Chlorophyll Fluorometer for Intelligent Water Sampling by a Small Uncrewed Aircraft System (sUAS)	4
Temperature-Dependent Infrared Refractive Index of Polymers from a Calibrated Attenuated Total Reflection Infrared Measurement	4
Smart Error Sum Based on Hybrid Two-Trace Two-Dimensional (2T2D) Correlation Analysis	4
Novel Method for High-Spatial-Resolution Chemical Analysis of Buried Polymer-Metal Interface: Atomic Force Microscopy-Infrared (AFM-IR) Spectroscopy with Low-Angle Microtomy	4
Model-Based Optimization of Laser Excitation and Detection Improves Spectral Contrast in Noninvasive Diffuse Raman Spectroscopy	4
Airborne Gold Nanoparticle Detection Using Photoluminescence Excited with a Continuous Wave Laser	4
A Novel Calibration Method for the Quantification of Respirable Particles in Mining Scenarios Using Fourier Transform Infrared Spectroscopy	4
Green Textile Materials for Surface Enhanced Raman Spectroscopy Identification of Pesticides Using a Raman Handheld Spectrometer for In-Field Detection	4
Development of Raman Calibration Model Without Culture Data for In-Line Analysis of Metabolites in Cell Culture Media	4
In Situ Time-Dependent Attenuated Total Reflection Fourier Transform Infrared (ATR FT-IR) Spectroscopy of a Powdered Specimen in a Controlled Atmosphere: Monitoring Sorption and Desorption of Water Va	4
Spectroscopic Investigation of Catalyst Inks and Thin Films Toward the Development of Ionomer Quality Control	4
Optimal Spectral Resolution for Infrared Studies of Solids and Liquids	4
Benefits of Chemometric and Raman Spectroscopy Applied to the Kinetics of Setting and Early Age Hydration of Cement Paste	4
Chemometric Approach to a Rapid Attenuated Total Reflection Fourier Transform Infrared Analysis of Complex Heroin-Based Mixtures	4
Determination of Spectroscopic Parameters of Ag(I) and Ag(II) Emission Lines Using Time-Independent Extended C-Sigma Method	4
Raman Spectroscopy Study of Skin Biopsies from Patients with Parkinson’s Disease: Trends in Alpha-Synuclein Aggregation from the Amide I Region	4
Microfluidic In-Situ Spectrophotometric Approaches to Tackle Actinides Analysis in Multiple Oxidation States	4
Fluorometer Control and Readout Using an Arduino Nano 33 BLE Sense Board	4
Quantitative Analysis of Manganese in Underwater Steel Samples Using Long–Short Double-Pulse Laser-Induced Breakdown Spectroscopy	4
Physicochemical Changes in Bone Bioapatite During the Late Postmortem Interval Pre- and Post-Burning	4
Exploring the Clinical Utility of Raman Spectroscopy for Point-of-Care Cardiovascular Disease Biomarker Detection	4
Device-Independent Discrimination of Falsified Amoxicillin Capsules Using Heterogeneous Near-Infrared Spectroscopic Devices for Training and Testing of a Support Vector Machine	4
Potential Role of Fourier Transform Infrared Spectroscopy as a Screening Approach for Breast Cancer	4
Characterization of Pottery from Teotihuacan Using Laser-Induced Breakdown Spectroscopy and Inductively Coupled Plasma Optical Emission Spectroscopy	4

Luminescence of Aromatic Compounds During Ultrasonic Treatment of Tb₂(SO₄)₃ Suspension in Commercial Gasoline	4
Coupling of the Liquid Sampling–Atmospheric Pressure Glow Discharge to Orbitrap Mass Analyzers for Uranium Isotope Ratio Analysis: Evolution of the Methodology and Implications to the Field	4
Compact Color Biofinder (CoCoBi): Fast, Standoff, Sensitive Detection of Biomolecules and Polyaromatic Hydrocarbons for the Detection of Life	4
Diffuse Reflectance Spectroscopy and Principal Component Analysis to Retrospectively Determine Production History of Plutonium Dioxide	4
Optimised Pre-Processing of Raman Spectra for Colorectal Cancer Detection Using High-Performance Computing	4
Sophisticated Attenuated Total Reflection Correction Within Seconds for Unpolarized Incident Light at 45°	4