Article
Spectroscopy
Supriya Joshi, Ritika Joshi, Manojkumar Jadhao
Summary: Detection of toxic metals is vital for protecting public health and the ecosystem. This study investigates a newly designed and synthesized sensor called FPAZ, which demonstrates high selectivity, reusability, and ultra-sensitivity in detecting Cs+ ions. FPAZ can be used for naked-eye detection in aqueous medium using simple and economical spectroscopy techniques. Additionally, FPAZ can be applied to detect Cs+ ion contamination using a smartphone camera. Overall, this chemosensor is simple, quick, and more promising than previously reported systems.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Zh. E. Ozbekova, A. A. Abdyldaev, A. A. Kulmyrzaev
Summary: This study compared two drying methods for cow and yak muscles, finding that freeze drying caused less discoloration. Additionally, analysis of fluorescence spectra allowed for accurate prediction of chemical composition and color characteristics of the muscles.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Aya A. Abdella, Asmaa M. Zaki, Sherin Hammad, Fotouh R. Mansour
Summary: In this study, a green, selective and sensitive fluorescence sensor was developed for detection of heparin in its injection dosage forms. The sensor utilized nitrogen and sulfur co-doped carbon quantum dots as the sensing material, which showed high emission and quantum yield. The sensor demonstrated accurate and precise detection of heparin within a certain concentration range.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Andreia Bento-Oliveira, Maria -Luisa C. J. Moita, Rodrigo F. M. de Almeida, Rados law Starosta
Summary: The p-methoxyphenylpiperazine motif is commonly found in biologically active molecules and can be used in various studies due to its weak fluorescence. This study conducted a comprehensive analysis of the absorption, excitation, and emission spectra of p-methoxyphenylpiperazine derivatives and determined the underlying mechanisms using computational methods. The study also explained the solvent effects observed in the electronic spectra of these compounds.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Dimitri J. S. De Waele, Sjobbe Luyten, Reilly E. Sonstrom, Jonathan Bogaerts, Justin L. Neill, Peter Viereck, Karel Goossens, Mattijs Baeten, Nico Vervoort, Wouter Herrebout
Summary: Chiral analysis is crucial for studying the stereospecific synthesis of APIs. Vibrational Circular Dichroism (VCD) and Molecular Rotational Resonance (MRR) spectroscopy can determine absolute configurations. In this study, the ACs of two highly fluorinated carboxylic acids were successfully assigned using VCD and MRR spectroscopy. The study demonstrates the power of contemporary VCD analysis and the unique contributions of MRR to the analytical toolbox.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Ahmed S. El-Shafie, Evana Rahman, Yasser Gadelhak, Rehab Mahmoud, Marwa El-Azary
Summary: The recycling of waste mandarin peels into biochar (MRBC) has been used as a high performance and cost-effective adsorbent for treating polluted wastewater effluents. Batch adsorption studies were conducted to analyze the adsorption competency of MRBC on two dyes, methylene blue (MB) and basic fuchsin (BF), either in individual solutions or binary combinations. The results showed that MRBC was capable of effectively removing a high percentage of both dyes. However, the adsorption capacity decreased when the dyes were combined. The cost estimation of MRBC production and wastewater treatment indicated that both were relatively low.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Zhenping Liu, Jun Zhou, Xianfeng Wang, Jinsong Zhao, Peng Zhao, Yi Ma, Suyi Zhang, Danqun Huo, Changjun Hou, Kang Ren
Summary: In this work, a novel aptasensor based on the fluorescence quenching property of graphene oxide (GO) and the fluorescence characteristic of cadmium selenide quantum dots (CdSe QDs) was developed for highly sensitive detection of fluoroquinolones contamination. The aptasensor showed reliable detection performance and promising potential for the detection of fluoroquinolones.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Lea Pasalic, Petra Males, Ana Cikos, Barbara Pem, Danijela Bakaric
Summary: Asymmetric liposomes are more suitable for modeling eukaryotic plasma membranes compared to symmetric liposomes. However, there are limitations in characterizing the asymmetry. In this study, FTIR spectroscopy was used to characterize the symmetry between DPPC/DPPS lipid bilayers for the first time.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Abobakr A. Mohamed, Mahmoud A. Omar, Sayed M. Derayea, Mohamed Ahmed Elsayed, Islam M. Mostafa
Summary: A new fluorimetric method for the selective and sensitive quantification of nadifloxacin has been established by blocking the photoinduced electron transfer effect through pH adjustment. This method allows for the detection of nadifloxacin in its pure state and cream pharmaceutical formulation without interference from common excipients.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Mohanraj Ramachandran, Ambigapathi Anandababu, Abdullah Al Souwaileh, Sambandam Anandan
Summary: This study successfully achieved high sensitivity detection of phosphate anions and ADP by synthesizing compound RL, which has potential applications.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yu-Han Geng, Yu Xin, Jing Du, Ming-Yi Cui, Yuan-Yuan Liu, Le-Xi Zhang, Bin Ding
Summary: In this study, a unique chiral composite optical sensor was successfully prepared through encapsulation and etching methods, which can highly sensitively detect chiral amino acids. Additionally, a flexible mixed-matrix membrane based on this chiral composite sensor was prepared, showing significant fluorescence enhancement effect.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Fang Li, Rong Tang, Yujie Kang, Xiaoyan Cui, Ya Wang, Xiupei Yang
Summary: A new fluorescent composite was designed for the detection of New coccine (NC) based on the hydrophobic interaction between peptide nanotubes and coumarin 6 (C6). The composite exhibited strong green fluorescence emission, which can be selectively quenched by NC through the inner filter effect. This method shows simplicity, rapid response, high selectivity, and has been successfully applied to the detection of NC in food samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Mengting Li, Di Sun, Shengbo Liu, Run Zhao, Keqiang Zhang
Summary: In this study, near-infrared spectroscopy (NIRS) models were established to rapidly determine the total nitrogen (TN) and total phosphorus (TP) contents of dairy slurry from different seasons. The results showed that the TN models had excellent performance in all seasons, while the TP models performed better in spring, summer, and winter. Additionally, global models incorporating data from diverse seasons showed a broader applicability but with reduced precision and accuracy compared to single-season models. Overall, these models provide a theoretical basis for the precise and scientifically-informed reuse of dairy farm slurry in agricultural fields.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
V. G. Tyuterev, A. Barbe, L. Manceron, B. Grouiez, S. A. Tashkun, J. Burgalat, M. Rotger
Summary: This study reports the observations and analyses of the high-resolution ozone spectra in the THz range using the Synchrotron light source of the SOLEIL CNRS equipment. New measurements and assignments for the v2 band were carried out, and accurate ab initio calculations of line intensities combined with empirically fitted line positions were used to create new linelists for theoretical modeling. The findings highlight significant deviations in new experimental spectra compared to available spectroscopic databases and the sensitivity of the region near 100 cm-1 to temperature conditions.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Christina Wichmann, Jennifer Dengler, Marc Hoffmann, Petra Roesch, Juergen Popp
Summary: Wastewater is a complex medium with bacteria. The combination of two simulated wastewaters can serve as a reference material for bacterial cultivation and Raman measurement to mimic real hospital wastewater samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Gurjaspreet Singh, Sofia Gupta, Harshbir Priyanka, Puspa, Bhavana Rani, Harshbir Kaur, Vikas, Richa Yadav, Rakesh Sehgal
Summary: In this article, the design and synthesis of a new compound 6a with high selectivity towards Sn(II) and Al(III) metal ions is presented. Computational studies and experimental results indicate that this compound has the potential to be an antibacterial drug.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Jiao Yang, Xiaodan Ma, Haiou Guan, Chen Yang, Yifei Zhang, Guibin Li, Zesong Li, Yuxin Lu
Summary: This study proposes a method combining near-infrared spectroscopy technology with deep learning technology to build a corn quality detection model. Through preprocessing and feature optimization, the model shows high accuracy and recall rates on the test set, and it significantly outperforms traditional machine learning models.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
V. Kousalya Devi, F. Kousi, M. Mujahid Alam, S. Sambasivam, G. Ramalingam, M. Abith, T. C. Sabari Girisun, S. Sudhahar
Summary: This research focused on the synthesis and characterization of p-toluidinium 2,4-dichlorobenzoate (PTDA), an organic nonlinear optical crystal grown at room temperature. Various techniques including X-ray diffraction, thermal analysis, and optical property analysis were used to investigate the properties of the crystal. The study found that PTDA crystal exhibited nonlinear optical properties and high mechanical strength.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Ibrahim A. Darwish, Nourah Z. Alzoman
Summary: This study enhances the weak fluorescence of loratadine by a dual strategy, which is then utilized to develop a spectrofluorimetric assay for determining loratadine in pharmaceutical dosage forms and urine samples. The proposed assay demonstrates high sensitivity, procedural simplicity, and high throughput.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Maneshwar Thakur, Ankush Vij, Fouran Singh, Vir Singh Rangra
Summary: This study investigates the structural and luminescent properties of zirconium dioxide synthesized via the solid-state combustion method. The results show that the synthesized zirconium dioxide mainly exhibits a tetragonal structure, with a minor monoclinic phase observed in some samples. The sample with a 1:1 nitrate-fuel ratio demonstrates a more pronounced overall thermoluminescence intensity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
