Article
Multidisciplinary Sciences
Yves Auad, Eduardo J. C. Dias, Marcel Tence, Jean-Denis Blazit, Xiaoyan Li, Luiz Fernando Zagonel, Odile Stephan, Luiz H. G. Tizei, F. Javier Garcia de Abajo, Mathieu Kociak
Summary: The authors propose a technique that combines free-space light and electron beams to achieve unmatched spatial and spectral resolution. This approach allows detailed investigation of photonic structures, promising advancements in microscopy and quantum optics.
NATURE COMMUNICATIONS
(2023)
Article
Physics, Multidisciplinary
Michael Yannai, Yuval Adiv, Raphael Dahan, Kangpeng Wang, Alexey Gorlach, Nicholas Rivera, Tal Fishman, Michael Kruger, Ido Kaminer
Summary: The ability to form monoenergetic electron beams is crucial for high-resolution electron spectroscopy and imaging. In this study, a lossless monochromator mechanism for electron energy monochromation is developed, which utilizes the interaction of free-electron pulses with single-cycle THz near fields. The experiment successfully reduces the electron energy spread without compromising the beam flux, demonstrating the robustness and wide tunability of the technique. The findings have direct applications in ultrafast electron microscopy, enabling time- and energy-resolved studies in various areas.
PHYSICAL REVIEW LETTERS
(2023)
Review
Spectroscopy
Tucker Carrington
Summary: In this paper, collocation methods for solving the time-independent and the time-dependent Schroedinger equation are reviewed. Compared to traditional variational methods, collocation methods do not require integrals and quadrature, unless the potential does not have a special form. There are established ideas for reducing the size of the basis in a variational calculation, but difficulties with quadrature still arise.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Biochemistry & Molecular Biology
Leonardo Barbosa Leal, Marcelo Saito Nogueira, Jandinay Gonzaga Alexandre Mageski, Thiago Pereira Martini, Valerio Garrone Barauna, Leonardo dos Santos, Luis Felipe das Chagas e Silva de Carvalho
Summary: This study evaluated the accuracy of FTIR for IO diagnosis by collecting FTIR spectra of plasma samples from rats injected with iron-dextran and control rats. A classification model based on principal component analysis and supervised methods achieved 100% accuracy in classifying IO status and identified possible biomolecules related to the vibrational modes detected. This preliminary study took a step towards real-time diagnosis for acute IO or intoxication while expanding knowledge on the pathophysiological changes induced by iron overload.
BIOLOGICAL TRACE ELEMENT RESEARCH
(2021)
Article
Chemistry, Physical
Valdemir Ludwig, Alessandro Henrique de Lima, Lucas Modesto-Costa, Zelia M. Da Costa Ludwig, Joao Paulo Almeira de Mendonca, Welber Gianini Quirino, Fernando Sato
Summary: In this study, graphene oxide (GO) was synthesized and its vibrational properties were characterized for hydrated and lyophilized samples. Computational simulations showed a large polarization in the GO molecule due to strong hydrogen bonds formed between water molecules and oxygen functional groups. This led to broadening observed in the infrared and Raman spectra.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Changjian Xie, Yafu Guan, David R. Yarkony, Hua Guo
Summary: The low-lying vibrational energy levels of both the ground and first excited singlet states of formaldehyde have been accurately determined using advanced methods. The agreement with experimental data provides strong evidence for the accuracy of the method, which will aid in understanding the internal conversion of H2CO(S-1) and subsequent dynamics on its S-0 state in the future.
Article
Physics, Multidisciplinary
Renwen Yu, Andrea Konecna, F. Javier Garcia de Abajo
Summary: This study investigates the impact of electron propagation direction on excitations of InAs films in structures with gyrotropic nonreciprocal material characteristics, utilizing electron energy-loss spectroscopy and cathodoluminescence. The results show that the optical field distribution of the sampled resonances can be modified by the magnetic field, resulting in direction-dependent coupling to the electron. This paves the way for using electron microscope spectroscopies to explore near-field characteristics of nonreciprocal systems with high spatial resolution.
PHYSICAL REVIEW LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Xiang Zhu, Jiayu Xu, Yao Zhang, Bin Li, Yishu Tian, Yingying Wu, Zhiwei Liu, Chuanxu Ma, Shijing Tan, Bing Wang
Summary: Isotope substitution not only changes the vibrational frequencies but also the vibrational distributions in real-space of a molecule. Measuring isotope effects in a polyatomic molecule at the single-bond level with energy and spatial resolutions has been challenging. By achieving angstrom resolution in tip-enhanced Raman spectroscopy (TERS), the isotope effect of each vibrational mode in pentacene and its fully deuterated form is identified and measured. The frequency ratio ν(H)/ν(D) varies from 1.02 to 1.33, indicating different isotopic contributions of H/D atoms, which can be distinguished and described by TERS maps and potential energy distribution simulations. This study demonstrates that TERS can be a non-destructive and highly sensitive method for isotope detection and recognition with chemical-bond precision.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Agust Olafsson, Siamak Khorasani, Jacob A. Busche, Jose J. Araujo, Juan Carlos Idrobo, Daniel R. Gamelin, David J. Masiello, Jon P. Camden
Summary: This study investigates the performance of carrier-doped semiconductor nanocrystals in the infrared spectrum, revealing that ITO NCs may have greater coupling strength than expected, with the potential for near-field enhancement and resonant energy transfer.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Optics
N. Sudha, R. Mathammal, R. Shankar, G. Sharon Benita
Summary: Organic materials in the field of nonlinear optics, such as Aniline-L-Tartrate (ALT) crystal with high nonlinear optical behavior, show unique advantages compared to inorganic materials. The growth and characterization of ALT crystal provide insights for potential practical applications. Theoretical calculations and analysis further contribute to understanding the macroscopic nonlinear properties of the material.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Ruishi Qi, Ruochen Shi, Yuehui Li, Yuanwei Sun, Mei Wu, Ning Li, Jinlong Du, Kaihui Liu, Chunlin Chen, Ji Chen, Feng Wang, Dapeng Yu, En-Ge Wang, Peng Gao
Summary: Four-dimensional electron energy-loss spectroscopy measurements reveal localized modes at heterointerfaces that impact thermal conductance and electron mobility. Experimental challenges stem from the need to achieve combined spatial, momentum, and spectral resolutions to probe these modes effectively.
Article
Chemistry, Physical
Fengqin Long, Hua Xie, Wei Zhuang
Summary: The EVV 2DIR technique can effectively distinguish the spectral signatures between trans- and cis-MCA, and further analysis on the contribution of vibration mode pairs to characteristic cross-peaks has been conducted. This provides a method for in situ detection of concentration ratio of each species in reversible reaction processes.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Spectroscopy
Ali Assi, Rime Michael-Jubeli, Carine Jacques-Jamin, Helene Duplan, Arlette Baillet-Guffroy, Ali Tfayli
Summary: The skin surface lipid (SSL) film, which consists of sebum and epidermal lipids, provides protection from the environment, including solar radiation. SSLs, containing vitamin E, serve as scavengers for reactive oxygen species (ROS) in the skin. This study focuses on the effects of solar radiation on different lipid classes in SSLs, such as squalene, cholesterol, and wax ester, as well as the behavior of vitamin E. The results showed that squalene and vitamin E displayed noticeable oxidation after certain dosage of solar radiation, while no changes were observed in cholesterol and wax ester. The antioxidant role of squalene was confirmed through its scavenging of free radicals generated from the oxidation of polyunsaturated fatty acids (PUFA).
JOURNAL OF RAMAN SPECTROSCOPY
(2023)
Article
Chemistry, Physical
Hao Lu, Luca Bellucci, Shumei Sun, Daizong Qi, Marta Rosa, Ruediger Berger, Stefano Corni, Mischa Bonn
Summary: The assembly mechanism of Aβ peptides at hydrophobic interfaces depends on the pH, with acidic conditions promoting the formation of extended β-strand fibrils and facilitating macroscopic assembly.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Biochemistry & Molecular Biology
Giovanna Abrantes, Valber Almeida, Angelo Jamil Maia, Rennan Nascimento, Clistenes Nascimento, Ygor Silva, Yuri Silva, Germano Veras
Summary: Soil is an important natural resource, and the presence of excessive metals can decrease environmental quality. Analyzing soil metal contents can be costly and time consuming, but near-infrared spectroscopy coupled with chemometric tools can offer a cost-effective alternative. This study evaluated the performance of the Firefly algorithm in predicting metals in river basin soils and found that it outperformed deterministic algorithms in certain cases.
Editorial Material
Chemistry, Physical
Maciej Kozak, Wojciech Kwiatek, Maya Kiskinova, Augusto Marcelli, Sakura Pascarelli
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Chemistry, Physical
N. Piergies, M. Ocwieja, C. Paluszkiewicz, W. M. Kwiatek
Summary: Metal nanoparticles are widely studied for medical applications, but their cytotoxicity remains a concern. The stabilizer on the nanoparticle surface can affect the drug/metal interaction. Different stabilizers used in the preparation of gold nanoparticles result in variations in the adsorption of erlotinib.
APPLIED SURFACE SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Katarzyna Pogoda, Ewa Pieta, Maciej Roman, Natalia Piergies, Danuta Liberda, Tomasz P. Wrobel, Paul A. Janmey, Czeslawa Paluszkiewicz, Wojciech M. Kwiatek
Summary: This study found that non-malignant prostate cells are stiffer than cancer cells, while metastatic cells are softer than malignant cells from the primary tumor site. By utilizing techniques such as AFM, RS, and FT-IR, it was possible to discriminate between normal and cancer cells, and identify a linear correlation between the mechanical response and biomolecular composition of cells undergoing malignant transformation.
ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS
(2021)
Article
Biochemistry & Molecular Biology
Magdalena Kolodziej, Karolina Chrabaszcz, Ewa Pieta, Natalia Piergies, Julia Rudnicka-Czerwiec, Halina Bartosik-Psujek, Czeslawa Paluszkiewicz, Marian Cholewa, Wojciech M. Kwiatek
Summary: Multiple sclerosis (MS) is a chronic neurodegenerative disease that affects the central nervous system. The diagnosis of MS is crucial for successful treatment, and it typically involves clinical observation, MRI, and analysis of cerebrospinal fluid (CSF). In this study, the researchers propose using spectroscopy as an alternative diagnostic tool, specifically Attenuated Total Reflectance Fourier Transform Infrared (ATR-FTIR) spectroscopy. By analyzing blood plasma and serum samples from MS patients and healthy individuals, the researchers identified specific spectral patterns that can differentiate between MS samples and non-MS samples.
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Agnieszka Kaminska, Maciej Roman, Andrzej Wrobel, Agnieszka Gala-Bladzinska, Maciej T. Malecki, Czeslawa Paluszkiewicz, Ewa L. Stepien
Summary: This study verified the hypothesis that the Raman signature of urinary extracellular vesicles (UEVs) can be used to classify patients with diabetes at different stages of chronic kidney disease (CKD). The study found significant correlations between Raman bands measured for UEVs and clinical parameters, and significant differences in specific bands mainly derived from proteins and lipids between different study groups. Regression models including tryptophan and amide III bands were able to estimate the values of estimated glomerular filtration rate (eGFR).
NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE
(2022)
Article
Physics, Multidisciplinary
Jakub Szlachetko, Jacek Szade, Edyta Beyer, Wojciech Blachucki, Piotr Ciochon, Paul Dumas, Kinga Freindl, Grzegorz Gazdowicz, Sebastian Glatt, Krzysztof Gula, Josef Hormes, Paulina Indyka, Agnieszka Klonecka, Jacek Kolodziej, Tomasz Kolodziej, Jozef Korecki, Pawel Korecki, Filip Kosiorowski, Karolina Kosowska, Grzegorz Kowalski, Maciej Kozak, Paulina Koziol, Wojciech Kwiatek, Danuta Liberda, Henning Lichtenberg, Ewa Madej, Anna Mandziak, Andrzej Marendziak, Krzysztof Matlak, Alexey Maximenko, Pawel Nita, Natalia Olszowska, Roman Panas, Ewa Partyka-Jankowska, Marcel Piszak, Alexander Prange, Michal Rawski, Maciej Roman, Marcin Rosmus, Marcin Sikora, Joanna Slawek, Tomasz Sobol, Katarzyna Sowa, Nika Spiridis, Joanna Stepien, Magdalena Szczepanik, Tomasz Slezak, Tolek Tyliszczak, Grzegorz Wazny, Jaroslaw Wiechecki, Dorota Wilgocka-Slezak, Barbara Wolanin, Pawel Wrobel, Tomasz Wrobel, Marcin Zajac, Adriana Wawrzyniak, Marek Stankiewicz
Summary: The SOLARIS synchrotron in Krakow, Poland is a third-generation light source operating at medium electron energy. It was first observed in 2015, and experiments using soft X-ray energies were conducted in 2018. SOLARIS is now expanding its operation to include hard X-rays and is continuously developing its beamlines and infrastructure. This article provides an overview of the SOLARIS synchrotron design, including the beamlines, research infrastructure, performance parameters, and future development plans.
EUROPEAN PHYSICAL JOURNAL PLUS
(2023)
Article
Green & Sustainable Science & Technology
Jaroslaw Chwastowski, Pawel Staron, Ewa Pieta, Czeslawa Paluszkiewicz
Summary: The study investigated using waste beet pulp shreds as a sorbent to remove crystal violet dye from water and explored the antimicrobial properties of the resulting material. Equilibrium and kinetic studies were conducted to examine the sorption process of crystal violet dye on beet pulp shreds. The Langmuir isotherm model showed the best fit, with a sorption capacity of 28.07 mg/g. Kinetic studies and FT-IR analysis confirmed that the sorption process of crystal violet dye on beet pulp shreds is chemical. The obtained material demonstrated growth inhibition of selected microorganisms, with Escherichia coli and Pseudomonas aeruginosa being more resistant than Candida albicans and Staphylococcus aureus.
Article
Materials Science, Multidisciplinary
Dominika Swiech, Natalia Piergies, Gaetano Palumbo, Czeslawa Paluszkiewicz
Summary: In this study, surface-enhanced Raman spectroscopy (SERS) was used to investigate the adsorption process of cysteine (Cys) on titanium (Ti) surfaces. The presence of phosphate-buffered saline solution (PBS) strongly influenced the adsorption behavior of Cys on Ti surfaces, with a significant decrease in adsorption observed at pH 7.4 to 3. Under strongly acidic conditions (pH = 1), a strong interaction between Cys and Ti surfaces was observed. In contrast, ex situ SERS spectra showed the formation of disulfide bonds (S-S) through dimerization or aggregation of Cys molecules on Ti surfaces.
Article
Chemistry, Analytical
Ewa Pieta, Czeslawa Paluszkiewicz, Wojciech M. Kwiatek, Maria Rosa Lopez-Ramirez
Summary: This study describes the vibrational properties of the anticancer drug batimastat (BB-94) as an inhibitor of extracellular matrix metalloproteinase and its adsorption on a silver roughened electrode surface using surface-enhanced Raman spectroscopy (SERS). The research reveals that the applied electrode potential and excitation wavelengths greatly influence the molecule-metal interface. By calculating molecular geometry and Raman frequencies, the nature of vibrational modes is clarified, and it is found that certain parts of the molecule interact with the metal surface, resulting in enhanced SERS signal. Additionally, different adsorption species or metal complexes on the surface could contribute to the observed SERS spectra.
Correction
Physics, Multidisciplinary
Jakub Szlachetko, Jacek Szade, Edyta Beyer, Wojciech Blachucki, Piotr Ciochon, Paul Dumas, Kinga Freindl, Grzegorz Gazdowicz, Sebastian Glatt, Krzysztof Gula, Josef Hormes, Paulina Indyka, Agnieszka Klonecka, Jacek Kolodziej, Tomasz Kolodziej, Jozef Korecki, Pawel Korecki, Filip Kosiorowski, Karolina Kosowska, Grzegorz Kowalski, Maciej Kozak, Paulina Koziol, Wojciech M. Kwiatek, Danuta Liberda, Henning Lichtenberg, Ewa Madej, Anna Mandziak, Andrzej Marendziak, Krzysztof Matlak, Alexey Maximenko, Pawel Nita, Natalia Olszowska, Roman Panas, Ewa Partyka-Jankowska, Marcel Piszak, Alexander Prange, Michal Rawski, Maciej Roman, Marcin Rosmus, Marcin Sikora, Joanna Slawek, Tomasz Sobol, Katarzyna Sowa, Nika Spiridis, Joanna Stepien, Magdalena Szczepanik, Michal Slezak, Tomasz Slezak, Tolek Tyliszczak, Grzegorz Wazny, Jaroslaw Wiechecki, Dorota Wilgocka-Slezak, Barbara Wolanin, Pawel Wrobel, Tomasz Wrobel, Marcin Zajac, Adriana Wawrzyniak, Marek Stankiewicz
EUROPEAN PHYSICAL JOURNAL PLUS
(2023)
Article
Chemistry, Multidisciplinary
Natalia Piergies, Magdalena Ocwieja, Julia Maciejewska-Pronczuk, Robert Kosydar, Czeslawa Paluszkiewicz, Wojciech M. Kwiatek
Summary: For the first time, this study proposes the combined use of surface-enhanced Raman spectroscopy (SERS), tip-enhanced infrared (TEIRA) nanospectroscopy, and quartz crystal microbalance (QCM) for comprehensive qualitative and quantitative analyses of drug/metal nanocarrier conjugates. The study focuses on erlotinib, a drug used in non-small cell lung cancer therapy, and its interaction with silver nanoparticles (AgNPs) as drug carriers. The results show the strong connection between the drug and the NPs mainly through the phenylacetylene moiety. The QCM is used to prepare an AgNP monolayer and determine the amount of erlotinib molecules immobilized on the metal nanosurface, while TEIRA nanospectroscopy provides ultra-high spatial resolution to identify the drug/AgNP monolayer connection.
Article
Chemistry, Multidisciplinary
Michal Nowakowski, Anna Wisniewska-Becker, Joanna Czapla-Masztafiak, Jakub Szlachetko, Andrzej Budziak, Zaneta Polanska, Zuzanna Pietralik-Molinska, Maciej Kozak, Wojciech M. Kwiatek
Summary: Cr(VI) is a harmful and carcinogenic agent that can quickly undergo reduction to lower oxidation states in cellular membranes, posing a significant threat to cells. This study investigated the effects of Cr(VI) on liposomes and non-lamellar inverted hexagonal phase lipid structures, revealing that these structures are more sensitive to oxidation compared to lamellar lipid phases. The results suggest that the high cytotoxicity of Cr(VI) may be attributed to its impact on the inverted hexagonal phase of lipid structures.
Meeting Abstract
Biochemistry & Molecular Biology
I. Zhukov, K. Szutkowski, Z. Svedruzic, J. Maksim, K. Rucinska, W. Kwiatek, M. Kozak
Article
Engineering, Biomedical
Anna M. Tryba, Malgorzata Krok-Borkowicz, Michal Kula, Natalia Piergies, Mateusz Marzec, Erik Wegener, Justyna Fraczyk, Rainer Jordan, Beata Kolesinska, Dieter Scharnweber, Czeslawa Paluszkiewicz, Elzbieta Pamula
Summary: A degradable PLGA membrane modified with cell adhesive RGD motifs was designed for the treatment of bone tissue defects. The modified PLGA membrane showed improved bone cell adhesion, proliferation, and viability compared to non-modified PLGA membranes.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2022)
