Review
Biochemistry & Molecular Biology
Joanna Szczepankowska, Gohar Khachatryan, Karen Khachatryan, Magdalena Krystyjan
Summary: This review discusses the types and methods of obtaining carbon dots, as well as their potential applications in biotechnology and food technology.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Environmental Sciences
Sue Jiun Phang, Jiale Lee, Voon-Loong Wong, Lling-Lling Tan, Siang-Piao Chai
Summary: In this study, a boron-doped CQD-hybridized g-C3N4 nanocomposite was synthesized via a simple hydrothermal method. The resulting 1-BCQD/CN sample exhibited excellent photocatalytic activity, achieving a high degradation efficiency of Rhodamine B within 4 hours under LED light irradiation. The properties and composition of the photocatalyst samples were characterized using various techniques, and the primary reactive species responsible for the photodegradation process were identified.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Hector Daniel Ibarra-Prieto, Alejandra Garcia-Garcia, Faustino Aguilera-Granja, Diana Carolina Navarro-Ibarra, Ignacio Rivero-Espejel
Summary: In this study, nitrogen and boron co-doped carbon dots were synthesized using a novel microwave-assisted method. The optimal synthesis conditions were determined through comprehensive parameter modulation. Characterization revealed that these carbon dots had a spherical morphology, specific optical properties, and functional groups. This nanomaterial holds great potential for various applications.
Article
Chemistry, Physical
Kamil Peckh, Beata Orlinska
Summary: In this study, transition metal salts of carboxylated carbon nanotubes were synthesized and their catalytic activity in the oxidation of ethylbenzene was studied. Results showed that the Cu (II) salt exhibited the highest conversion of ethylbenzene.
Article
Chemistry, Multidisciplinary
Tomohiko Nishiuchi, Seito Aibara, Hiroyasu Sato, Takashi Kubo
Summary: Researchers have reported the preparation of AQD-containing π-extended hydrocarbons, which can stabilize singlet and triplet spin biradicaloids by incorporating nonplanar aromatic groups, enabling control of spin states through conformational changes.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Analytical
Rong Liao, Si Dai, Biao Liu, Wenfang Deng, Yueming Tan, Qingji Xie
Summary: A novel strategy for photocurrent polarity switchable sensing is reported in this study by regulating electrostatic interactions between two semiconductor photoactive materials. The method achieves low detection limits and a wide linear detection range in the detection of HAase activity, providing a new and effective approach for photocurrent polarity switching and HAase activity detection.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Applied
Yingying Hu, Rentian Guan, Shuai Zhang, Xiaoyu Fan, Wenjing Liu, Keying Zhang, Xiaodong Shao, Xia Li, Qiaoli Yue
Summary: A convenient fluorescence sensor for tetracycline (TC) was constructed using carbon dots (CDs) and polyvinyl alcohol (PVA) hydrogel film, demonstrating higher sensitivity and better selectivity compared to previous methods. The sensor has potential applications in real-time detection of TC in food analysis.
Article
Materials Science, Multidisciplinary
Dong Zhang, Yijing Tang, Kaihang Zhang, Yaoting Xue, Si Yu Zheng, Baoyi Wu, Jie Zheng
Summary: A new working principle and fabrication strategy have been reported to construct bilayer hydrogels with a seamless interface and programmable layer thicknesses by controlling spontaneous macrophase separation. These hydrogels can mimic soft tissues and robots to adapt their shapes or motions in response to external stimuli.
Review
Chemistry, Multidisciplinary
Yue Yu, Qingsen Zeng, Songyuan Tao, Chunlei Xia, Chongming Liu, Pengyuan Liu, Bai Yang
Summary: Seeking clean energy as an alternative to traditional fossil fuels is necessary for sustainable development. Carbon dots, a type of carbon nanomaterials, are being extensively researched for their potential as metal-free photocatalysts due to their strong UV-vis absorption, tunable energy levels, excellent charge transfer ability, stability, and low toxicity. This review systematically summarizes the classification, microstructures, synthetic methods, optical and photoelectrical properties of carbon dots. The recent advances in carbon dots-based photoinduced reactions, including photodegradation, photocatalytic hydrogen generation, CO2 conversion, N-2 fixation, and photochemical synthesis, are also highlighted, providing deep insights into their roles in various systems.
Article
Chemistry, Physical
Van Dien Dang, Thamilselvan Annadurai, Akhil Pradiprao Khedulkar, Jui-Yen Lin, Joemer Adorna Jr, Wan-Ju Yu, Bidhan Pandit, Trung Viet Huynh, Ruey-An Doong
Summary: This study presents a photoelectrochemical method for the degradation of trimethoprim and hydrogen evolution using a photo-anode prepared with N-doped carbon dots. The results show that the photo-anode has high photocurrent density and degradation efficiency, surpassing traditional materials. The findings demonstrate the promising application of photoelectrocatalysis in water treatment and energy conversion.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Polymer Science
Magdalena Krystyjan, Gohar Khachatryan, Karen Khachatryan, Marcel Krzan, Wojciech Ciesielski, Sandra Zarska, Joanna Szczepankowska
Summary: Nanotechnology is a rapidly developing field with applications in various industries. This article focuses on carbon nanomaterials, particularly graphene, nanotubes, and quantum dots, and their successful use in biotechnology, biomedicine, and environmental applications. The research and development of innovative carbon-based nanomaterials and the potential of nanotechnology in diverse fields are of great interest.
Article
Nanoscience & Nanotechnology
Dingding Zhang, Qingyi Han, Wendong Liu, Keying Xu, Mingzheng Shao, Yuyan Li, Peiyao Du, Zhen Zhang, Bingsi Liu, Libing Zhang, Xiaoquan Lu
Summary: In this study, Au-decorated N-rich carbon dot (Au-CD) nanocomposites with excellent stability were successfully prepared and applied in a biosensor.
ACS APPLIED NANO MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Kaiti Wang, Lunjun Qu, Chaolong Yang
Summary: As a type of room temperature phosphorescence (RTP) material, carbon dots (CDs) have short lifetime and low phosphorescence efficiency. Various strategies have been developed to improve these disadvantages, including embedding in rigid matrix, introducing heteroatom, and crosslink-enhanced emission. Doping CDs into different matrices is the main method for preparing long-lived CDs-based RTP materials. However, matrix-free CDs and carbonized polymer dots-based RTP materials have also been widely explored. The recent progress, efficient strategies, and emission mechanisms of CDs-based RTP materials are summarized and reviewed in detail. These materials show great application potential in anti-counterfeiting, data encryption, and biological monitoring due to their excellent chemical stability, photostability, and low biological toxicity.
Article
Chemistry, Multidisciplinary
Ping Zhao, Bo Jin, Qingchun Zhang, Rufang Peng
Summary: In this study, CNQDs and N-CQDs were synthesized with similar properties and incorporated into TiO2 to enhance its photocatalytic performance. CNQDs improved the generation of center dot O-2(-) radicals, while N-CQDs increased the production of center dot OH radicals within TiO2, leading to different photocatalytic efficiencies towards pollutants.
RESEARCH ON CHEMICAL INTERMEDIATES
(2021)
Article
Chemistry, Physical
Xiang Gao, Wei Jiang, Xin An, Kun Zhu, Linhua Zhu, Peiwen Wu, Wenshuai Zhu, Huaming Li
Summary: NHPI/PC catalysts, loaded with organic molecular catalyst NHPI on the surface of petroleum coke-based porous carbon, showed high efficiency and recyclability in aerobic oxidative desulfurization of model diesel oil under optimal conditions. The catalyst exhibited strong adsorption of oxidative products, resulting in a significant decrease in sulfur content. Free radical trapping experiments confirmed the presence of superoxide radicals as the main active species. Reusability tests demonstrated the catalyst's potential for industrial application after 9 cycles. Actual diesel oil sulfur content could be reduced from 852 mg kg(-1) to 91 mg kg(-1) with the catalyst, indicating promising industrial prospects.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Polymer Science
Corneliu S. Stan, Adina Coroaba, Marcel Popa, Laura E. Ursu
POLYMER INTERNATIONAL
(2020)
Article
Multidisciplinary Sciences
Crina Elena Tiron, Gabriel Luta, Mihail Butura, Florin Zugun-Eloae, Corneliu S. Stan, Adina Coroaba, Elena-Laura Ursu, Gabriela Dumitrita Stanciu, Adrian Tiron
SCIENTIFIC REPORTS
(2020)
Article
Materials Science, Biomaterials
Adrian Borhan, Dumitru-Daniel Herea, Daniel Gherca, Cristina Stavila, Anca-Emanuela Minuti, Marian Grigoras, Camelia Mihaela Danceanu, Luminita Labusca, George Stoian, Gabriel Ababei, Corneliu Stan, Nicoleta Lupu, Horia Chiriac
MATERIALS SCIENCE AND ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
(2020)
Article
Neurosciences
Paula Alexandra Postu, Adrian Tiron, Crina Elena Tiron, Dragos Lucian Gorgan, Marius Mihasan, Lucian Hritcu
Summary: In this study, it was found that inhalation of Pinus halepensis and Tetraclinis articulata essential oils exhibited neuroprotective effects and improved memory impairments in Alzheimer's disease rat model. Pinus halepensis mainly stimulated ARC expression, while Tetraclinis articulata enhanced BDNF expression. Inhalation of the essential oils also reduced IL-10 expression and had positive effects against DNA fragmentation. These findings suggest that these essential oils could be of therapeutic interest against A01-42-induced neurotoxicity.
CNS & NEUROLOGICAL DISORDERS-DRUG TARGETS
(2022)
Article
Chemistry, Physical
Angela Danila, Sorin-Alexandru Ibanescu, Carmen Zaharia, Emil Ioan Muresan, Alina Popescu, Maricel Danu, Vlad Rotaru
Summary: This study aimed to develop and analyze O/W lavender emulsions for skincare textiles, using different components and conducting various experiments to confirm the feasibility of the method. The results from microscopic analysis, physicochemical properties, and other tests indicated the suitability of the prepared emulsions for application in skincare textiles.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Biochemistry & Molecular Biology
Gabriel Luta, Mihail Butura, Adrian Tiron, Crina E. Tiron
Summary: The study found that the combination of CD-NHF and an inhibitor significantly impaired the invasiveness and viability of U87 glioma cells by affecting the expression levels of key molecular pathways, demonstrating anti-tumoral properties.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Biochemistry & Molecular Biology
Mohamed Dellali, Camelia Elena Iurciuc (Tincu), Corina Lenuta Savin, Nawel Spahis, M'hamed Djennad, Marcel Popa
Summary: Cross-linked chitosan (CS) films with aldehyde groups were prepared using oxidation of carboxymethyl cellulose (CMC) with NaIO4. The presence of aldehyde groups in the oxidized carboxymethyl cellulose (CMCOx) was confirmed by FTIR and NMR spectroscopy. The study showed that the cross-linking conditions and molar ratio of -CHO/-NH2 affected the curcumin encapsulation efficiency, release efficiency, and skin membrane permeability. Increasing cross-linking degree resulted in decreased encapsulation efficiency and release efficiency of curcumin, but also influenced the absorption of curcumin in the skin membrane.
Review
Biochemistry & Molecular Biology
Anca Irina Ristescu, Crina Elena Tiron, Adrian Tiron, Ioana Grigoras
Summary: Increased inspiratory oxygen concentration during the perioperative period in cancer patients may have potential effects on distal metastases and circulating cancer cells, with conflicting results from clinical trials and experimental studies on long-term outcomes.
Article
Polymer Science
Catalina Anisoara Peptu, Elena Simona a, Corina-Lenuta Savin (Logigan), Marian Lutcanu, Maricel Agop
Summary: New hydrogel films crosslinked with epichlorohydrin, based on alginates and carboxymethyl cellulose, show promise as potential drug delivery systems due to their biocompatibility, water absorption capacity, and controlled drug release potential. A new theoretical model within the Scale Relativity Theory framework offers insights into the microscopic drug release process and simplifies analysis of drug release.
Article
Pharmacology & Pharmacy
Adrian Tiron, Corneliu S. Stan, Gabriel Luta, Cristina M. Uritu, Irina-Cezara Vacarean-Trandafir, Gabriela D. Stanciu, Adina Coroaba, Crina E. Tiron
Summary: The study developed gadolinium, Fe3+, and Mn2+-doped Carbon Dots, with Mn2+-doped Carbon Dots showing anti-tumoral properties without significant impact on normal cells. Experimental results demonstrate the potential therapeutic and diagnostic applications of these doped Carbon Dots in pre-clinical models.
Article
Chemistry, Multidisciplinary
Razvan Ghiarasim, Crina Elena Tiron, Adrian Tiron, Mihail-Gabriel Dimofte, Mariana Pinteala, Alexandru Rotaru
Summary: Diblock copolymers of polyhistidine can self-assemble into micelles and undergo pH-dependent disassembly. This property has been utilized for designing drug delivery systems targeting tumor environments. In this study, poly(ethylene glycol)-polyhistidine sequences were synthesized using solid-phase peptide synthesis and their ability to self-assemble into micelles, load doxorubicin, and release the drug in a tumor-like pH environment was investigated.
Article
Biochemistry & Molecular Biology
Loredana Stan, Teodor Malutan, Irina Volf, Marcel Popa, Camelia E. E. Tincu, Corneliu S. S. Stan
Summary: In this work, three new polymer aerogels based on complexes of HEMA with Eu(III), Tb(III) and La(III) were prepared and investigated. These polymer aerogels exhibit strong photoluminescence in the red, green and blue regions of the visible spectrum. The consistency of the photoluminescent aerogels varies depending on the water content used during preparation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Polymer Science
Corina Logigan, Christelle Delaite, Crina-Elena Tiron, Cristian Peptu, Marcel Popa, Catalina Anisoara Peptu
Summary: Chitosan hydrogels were prepared by chemical modification and double crosslinking in a water/oil emulsion. The modified chitosan showed better control of dimensional properties and morphology compared to neat chitosan. In addition, the modified hydrogels exhibited pH-dependent behavior and demonstrated excellent capacity for drug loading and release, making them suitable for controlled release applications in biomedicine.
Review
Polymer Science
Stefan Morarasu, Bianca Codrina Morarasu, Razvan Ghiarasim, Adina Coroaba, Crina Tiron, Radu Iliescu, Gabriel-Mihail Dimofte
Summary: This scoping review aimed to map current protocols for pH functionalization of nanoparticles (NPs) and analyze the outcomes of drug-loaded pH-functionalized NPs (pH-NPs) in tumoral tissue. The results indicated that pH-NPs can improve drug delivery and enhance antitumoral effects.
Article
Biochemistry & Molecular Biology
Crina E. Tiron, Emilia Patrascanu, Paula A. Postu, Irina C. Vacarean Trandafir, Adrian Tiron, Ioana Grigoras
Summary: This study demonstrated that exposure of TNBC cells to sevoflurane resulted in morphological and behavioral changes, as well as differential regulation of AKT isoforms, especially early upregulation of AKT3. Treatment with sevoflurane at specific time points and concentrations significantly increased cell viability, proliferation, aggressiveness, and expression of vimentin and HIF.
CURRENT ISSUES IN MOLECULAR BIOLOGY
(2021)
