Article
Oncology
Lei Li, Jinguang Wu, Limin Yang, Huizi Wang, Yizhuang Xu, Keng Shen
Summary: Fourier transform infrared (FTIR) spectroscopy has great potential in the diagnosis and monitoring of ovarian cancer, capable of distinguishing different types of cancer and monitoring cancer cells' response to drugs.
CANCER MANAGEMENT AND RESEARCH
(2021)
Article
Optics
Jeremy Xuan Yu Chew, Zi Heng Lim, Y. Qi, Guangcan Zhou, Guangya Zhou
Summary: Infrared devices are increasingly used in various applications. This paper introduces a novel dispersive spectrometer that has high-throughput and decoupled spectral resolution. The proposed spectrometer utilizes a two-stage Hadamard transform encoding process to increase the signal-to-noise ratio. With a single-pixel detector, the system can be easily implemented in other desired wavelengths. Additionally, a method is developed to remove the need for uniform illumination and improve the ease of device design for in situ measurement.
Article
Biochemical Research Methods
Yadi Wang, Huiping Liu, Feng Geng, Pan Yang, Junhong Lu, Xueling Li
Summary: We developed an infrared microspectroscopy-based method to quantitatively evaluate and describe biofilm phenotypic characteristics by calculating spectral similarity. This approach revealed phenotypic variation during biofilm formation and heterogeneity between two E. coli strains. Two-dimensional correlation spectroscopy was used to investigate biochemical component evolution during E. coli biofilm formation and identified trends in polysaccharide molecule changes, providing new opportunities for infrared microspectroscopy in studying biofilm formation.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Automation & Control Systems
Katarina Domijan
Summary: An empirical study was conducted to compare various implementations of ensemble models for improving prediction in spectroscopic data. The study found that the ensemble classifiers consistently performed better than the candidate models in this application.
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS
(2023)
Article
Spectroscopy
Xiaorong Yang, Xin Wei, Kai Yu, Changwu Wan, Yuanhe Wang, Shimei Huang, Qinru Sun, Jiang Huang
Summary: This study successfully identified myocardial fibrosis and established a prediction model using ATR-FTIR spectroscopy combined with chemometrics, demonstrating high sensitivity and specificity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Polymer Science
Bo Zhang, Songyue Liu, Lijie Yin, Ming Tian, Nanying Ning, Liqun Zhang, Wencai Wang
Summary: This article investigates the reaction mechanism and interfacial modulus gradient of the interfacial transition layer between an environmentally friendly dipping system and rubber. By utilizing advanced atomic force microscopy and nanoscale Fourier transform infrared spectroscopy, the chemical structures and nano-mechanical properties of the interface are analyzed. The characterization of interfacial nanomechanical properties and chemical structures is crucial for understanding the interfacial adhesion mechanism.
Article
Chemistry, Applied
Huanjiong An, Qianyun Ma, Fan Zhang, Chen Zhai, Jianfeng Sun, Yiwei Tang, Wenxiu Wang
Summary: This study analyzed the starch retrogradation process by using 2D-COS analysis on FTIR and Raman spectroscopy data. It identified quantitative peaks related to starch retrogradation and established a quantitative partial least squares model to determine the degree of starch retrogradation. The findings have implications for improving the quality of starch-based food products.
FOOD HYDROCOLLOIDS
(2024)
Article
Chemistry, Analytical
Ge Qin, Shihao Wu, Xiaolong Hou, Huichao Wang, Huaice Liu, Zhenjun Jia
Summary: This article proposes a non-destructive, fast, and accurate method for inspecting and identifying pigment evidence. The method utilizes infrared spectra combined with multivariate classification models to accurately identify pigment samples, reducing inspection costs and improving efficiency. It can provide reference and guidance for inspecting and identifying relevant cases and other physical evidence inspections.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Arghya Banerjee, Abhiram Gokhale, Renuka Bankar, Viswanthram Palanivel, Akanksha Salkar, Harley Robinson, Jayanthi S. Shastri, Sachee Agrawal, Gunter Hartel, Michelle M. Hill, Sanjeeva Srivastava
Summary: This study demonstrates the potential of attenuated total reflectance Fourier-transform infrared (ATR-FTIR) spectroscopy as a rapid, low-cost COVID-19 severity triage tool to facilitate COVID-19 patient management during an outbreak. By incorporating ATR-FTIR spectra into clinical parameters, the classification accuracy of COVID-19 disease severity was significantly improved, showing promise for future applications in hospital settings.
ANALYTICAL CHEMISTRY
(2021)
Article
Polymer Science
Tamilla Mirzayeva, Jana Copikova, Frantisek Kvasnicka, Roman Bleha, Andriy Synytsya
Summary: This study utilized Fourier-transform infrared spectroscopy to screen the chemical composition of dietary supplements containing hyaluronic acid, and successfully quantified hyaluronic acid using various isolation procedures and analytical methods.
Article
Environmental Sciences
Weiqian Jia, Aleksandra Karapetrova, Mengjun Zhang, Libo Xu, Kang Li, Muke Huang, Jie Wang, Yi Huang
Summary: This study combined laser direct in-frared (LDIR) and Fourier-transform infrared (FTIR) methods to investigate microplastics in agricultural soils. The results showed that microplastics were present in high abundance, with particles ranging from 10 to 500μm accounting for the majority. Polyethylene, polypropylene, and polyvinyl chloride were the dominant polymer types. Reclaimed water from sewage treatment plants, drip irrigation utilities, and residual plastic film were identified as potential sources. The study also highlighted the underestimation of microplastic contamination in agricultural soils using visual counting methods.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Magdalena Cifuentes-Cabezas, Claudia F. Galinha, Joao G. Crespo, Maria Cinta Vincent-Vela, Jose Antonio Mendoza-Roca, Silvia Alvarez-Blanco
Summary: The presented work aims to solve the problem of large volumes of oil mill wastewater and proposes nanofiltration as a possible second stage treatment. Different membranes were tested and it was found that the NF270 membrane under specific conditions showed the best concentration of phenolic compounds with high permeate flux and low fouling. Furthermore, spectroscopic techniques were used to study membrane fouling and effectiveness of cleaning protocols.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Magdalena Cifuentes-Cabezas, Claudia F. Galinha, Joao G. Crespo, Maria Cinta Vincent-Vela, Jose Antonio Mendoza-Roca, Silvia Alvarez-Blanco
Summary: This study aims to address the issue of large volumes of oil mill wastewater (OMW) by using nanofiltration as a potential secondary treatment. Different membranes were tested under various operating conditions to concentrate phenolic compounds and produce permeate suitable for machinery cleaning water. The NF270 membrane showed the best performance in terms of phenolic compound concentration, permeate flux, and fouling. In addition, 2D fluorescence spectroscopy and FTIR were used to study membrane fouling.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Medicinal
Eirini Siozou, Vasilios Sakkas, Nikolaos Kourkoumelis
Summary: The methodology developed using ATR FT-IR equipped with chemometric tools like PLS and PLS-DA can accurately and rapidly determine the concentration of diclofenac sodium in dispersed commercially available tablets. It offers satisfactory results in terms of accuracy and precision, while being cost-effective and easy to operate.
Review
Food Science & Technology
Carlotta Ceniti, Anna Antonella Spina, Cristian Piras, Francesca Oppedisano, Bruno Tilocca, Paola Roncada, Domenico Britti, Valeria Maria Morittu
Summary: To ensure the safety and quality of milk, new tools have been developed to detect chemical contaminants, toxins, veterinary drugs, and adulteration of milk from different species. Mid-infrared spectroscopy and Fourier-transform infrared have been commonly used technologies for rapid screening of hazardous substances and confirmation of milk authenticity. These fingerprint methods can effectively determine the characteristics of raw materials without knowing the identity of each constituent, making them potential screening methods for adulteration detection. This paper reviews the latest advances in applying mid-infrared spectroscopy for the detection and quantification of adulterants, milk dilution, pathogenic bacteria, veterinary drugs, and hazardous substances in milk.
Article
Biochemistry & Molecular Biology
Gunjan Tyagi, Shweta Agarwal, Ranjana Mehrotra
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
(2015)
Article
Biochemical Research Methods
Aditi Sahu, Poonam Gera, Venkatesh Pai, Abhishek Dubey, Gunjan Tyagi, Mandavi Waghmare, Sandeep Pagare, Manoj Mahimkar, C. Murali Krishna
JOURNAL OF BIOMEDICAL OPTICS
(2017)
Letter
Biochemistry & Molecular Biology
Ranjana Mehrotra, Gunjan Tyagi, Sonika Charak, Bhumika Ray, Geeta Kadayaprath, Harit Chaturvedi, Urmi Mukherjee, Andleeb Abrari
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2018)
Article
Biochemistry & Molecular Biology
Shweta Agarwal, Gunjan Tyagi, Deepti Chadha, Ranjana Mehrotra
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
(2017)
Article
Biochemistry & Molecular Biology
Roshan Kumar, Raniki Kumari, Sanjay Kumar, Deepak Kumar Jangir, Tushar Kanti Maiti
Review
Chemistry, Medicinal
Renu Chaudhary, Meenakshi Balhara, Deepak Jangir, Mrridula Dangi, Mehak Dangi, Savita Khatri, Anil K. Chhillar
CURRENT TOPICS IN MEDICINAL CHEMISTRY
(2018)
Article
Chemistry, Analytical
Arti Hole, Gunjan Tyagi, Aditi Sahu, Rubina Shaikh, C. Murali Krishna
VIBRATIONAL SPECTROSCOPY
(2018)
Article
Multidisciplinary Sciences
Roshan Kumar, Deepak K. Jangir, Garima Verma, Shashi Shekhar, Pranita Hanpude, Sanjay Kumar, Raniki Kumari, Nirpendra Singh, Neel Sarovar Bhavesh, Nihar Ranjan Jana, Tushar Kanti Maiti
SCIENTIFIC REPORTS
(2017)
Review
Chemistry, Medicinal
Renu Chaudhary, Meenakshi Balhara, Deepak Kumar Jangir, Mehak Dangi, Mrridula Dangi, Anil K. Chhillar
CURRENT TOPICS IN MEDICINAL CHEMISTRY
(2019)
Article
Biochemistry & Molecular Biology
Raniki Kumari, Roshan Kumar, Sanjay Kumar, Abhishek Kumar Singh, Pranita Hanpude, Deepak Jangir, Tushar Kanti Maiti
JOURNAL OF BIOLOGICAL CHEMISTRY
(2020)
Article
Instruments & Instrumentation
Arti Hole, Gunjan Tyagi, Atul Deshmukh, Raviraj Deshpande, Vikram Gota, Pankaj Chaturvedi, C. Murali Krishna
Summary: Saliva, as a clinically informative bio-fluid with easy and multiple sample collection advantages, has recently been explored using optical techniques. Different sampling methods of saliva need to be standardized to prevent loss of analytes in processing. Studies comparing four different saliva sampling methodologies showed that pellet and supernatant exhibit discrete spectroscopic features useful for cancer diagnosis, while air-dried and lyophilized forms retain majority spectroscopic features of whole saliva and are less prone to sampling losses. This study indicates the potential utility of minimally invasive salivary Raman-based diagnostics in oral cancers.
APPLIED SPECTROSCOPY
(2021)
Article
Chemistry, Physical
Sepideh Khodaparast, William N. Sharratt, Gunjan Tyagi, Robert M. Dalgliesh, Eric S. J. Robles, Joao T. Cabral
Summary: This study investigates the micellar phase of pure and mixed aqueous solutions of SDS and DDAO, finding that the viscosity of mixed surfactant solutions increases exponentially with decreasing temperature and increasing DDAO content. A master curve for solution viscosity in terms of micellar aspect ratio is obtained, subsuming the effects of both temperature and DDAO composition in the experimental range investigated. The intrinsic viscosity of mixed micellar solutions is significantly higher than analytical and numerical predictions for Brownian suspensions of ellipsoidal colloids, emphasizing the importance of considering interactions of soft micelles under shear, especially at high concentrations.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Sepideh Khodaparast, Julius Marcos, William N. Sharratt, Gunjan Tyagi, Joao T. Cabral
Summary: This study investigates the impact of confinement on crystallization onset in subcooled micellar solutions of sodium dodecyl sulfate, finding that surface free energy and substrate roughness significantly affect surface-induced crystallization kinetics. Microscale surface roughness is shown to enhance crystal nucleation, particularly for substrates with the lowest surface energy and longest induction time. Tuning surface energy and microscopic roughness can effectively promote or delay nucleation in bulk-like volumes, impacting the stability of surfactant solutions at lower temperatures.
Article
Polymer Science
William N. Sharratt, Carlos G. Lopez, Miriam Sarkis, Gunjan Tyagi, Roisin O'Connell, Sarah E. Rogers, Joao T. Cabral
Summary: This research investigates the gelation process of sodium carboxymethyl cellulose with Fe3+ cations in water, utilizing FTIR and SANS techniques to reveal the gelation mechanism and structural evolution, providing a foundation for designing HMP particles with specified morphologies.
Article
Biochemistry & Molecular Biology
Sanjay Kumar, Deepak Kumar Jangir, Roshan Kumar, Manisha Kumari, Neel Sarovar Bhavesh, Tushar Kanti Maiti
ACS CHEMICAL NEUROSCIENCE
(2018)