JACS AuPub Date : 2025-08-25eCollection Date: 2025-09-22DOI: 10.1021/jacsau.5c00475
Ayokunle A Lekuti, Vanessa Y C Li, Ayden Malekjahani, Sara Ahmed, Stefan M Mladjenovic, Marshall G G Macduff, Warren C W Chan
{"title":"Designing Nanoparticle Surfaces with DNA Barcodes for Accurate In Vivo Quantification.","authors":"Ayokunle A Lekuti, Vanessa Y C Li, Ayden Malekjahani, Sara Ahmed, Stefan M Mladjenovic, Marshall G G Macduff, Warren C W Chan","doi":"10.1021/jacsau.5c00475","DOIUrl":"10.1021/jacsau.5c00475","url":null,"abstract":"<p><p>DNA barcoding is a common method for identifying the biodistribution of nanoparticles. DNA barcodes are typically encapsulated within nanoparticles to ensure accurate measurements by next-generation sequencing. This method limits the types of nanoparticles that can be screened. DNA can also be coated on nanoparticle surfaces. However, it is unclear whether surface-coated DNA can be used as barcodes because they can degrade, making the identification and quantification of nanoparticle designs challenging. Here, we developed strategies to reduce DNA degradation on nanoparticle surfaces, allowing surface-based DNA barcodes for biodistribution applications. We demonstrate that nanoparticle size, DNA density, and polymer length and density are essential design parameters for accurately identifying and quantifying nanoparticles in vivo. We found that chemical modification of DNA and shielding using neutral polymers reduce DNA degradation. We validated that surface barcoding can determine the in vivo distribution of nanoparticles. Our findings pave the way for the use of surface-based DNA barcodes for in vivo screening of nanoparticle formulations for targeted applications.</p>","PeriodicalId":94060,"journal":{"name":"JACS Au","volume":"5 9","pages":"4211-4223"},"PeriodicalIF":8.7,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12458034/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145152356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Light-Sensitive Ion Channel Delivery System for Ion-Interference Tumor Therapy.","authors":"Yueyue Lu, Yuxin Wu, Canhong Zhu, Tianlong Zhang, Yanting Wu, Lulu Xi, Xianze Huang, Tengfei Yan, Junqiu Liu","doi":"10.1021/jacsau.5c00762","DOIUrl":"10.1021/jacsau.5c00762","url":null,"abstract":"<p><p>Artificial ion channels have shown great potential applications in tumor treatment by disrupting ion homeostasis across cancer cell membranes. Herein, we report a de novo-designed ion channel delivery system (ICDS) based on light-sensitive nanocapsules that can induce cell apoptosis via interfering with ion homeostasis of subcellular membranes of tumors. The nanocapsules were self-assembled by the host-guest complex of azobenzene-modified quinoline helix (an artificial proton channel) and α-cyclodextrin, which can easily enter tumor cells by an endocytic effect and release proton channels under ultraviolet (UV) light irradiation. The artificial proton channels further neutralize the acidic organelles (such as lysosomes), deplete the mitochondrial membrane potential, elevate reactive oxygen species (ROS) levels, and eventually induce the apoptosis of cancer cells. As far as we know, this is the first example of an ion-interference antitumor strategy by an ion channel delivery system that may offer novel therapeutic directions for artificial ion channels.</p>","PeriodicalId":94060,"journal":{"name":"JACS Au","volume":"5 9","pages":"4439-4448"},"PeriodicalIF":8.7,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12458000/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145152412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Single Photocatalytic Hydrosilylation of Alkenes for the Synthesis of Bis(silyl) and Silaboryl Alkanes.","authors":"Yuki Nagashima, Mone Suzuki, Asuha Shimose, Ryo Arai, Ken Tanaka, Masanobu Uchiyama","doi":"10.1021/jacsau.5c00831","DOIUrl":"10.1021/jacsau.5c00831","url":null,"abstract":"<p><p>Bis-(silyl) and silaboryl alkanes are of interest as bioactive compounds and highly functionalized synthetic building blocks, but conventional hydrosilylation reactions lack generality and/or selectivity for synthesizing multielement-containing alkanes. Here, we present a versatile photoactivated hydrosilylation reaction of silicon- or boron-containing alkenes using silylborane as a silyl radical source to construct bis-(silyl) or silaboryl alkanes. This method employs a single phenothiazine-based photocatalyst and does not require conventional transition-metal or hydrogen-atom-transfer (HAT) catalysts or cocatalysts. Consequently, it has high generality, including alkenes bearing acid/base-sensitive groups, and provides high chemo-/regio-selectivity, overcoming the limitations of existing methods. This methodology also enables cyclizative functionalization of dienes and arylsilylation of boryl alkenes, and we show that the obtained multielement-containing alkanes are useful synthetic building blocks. Mechanistic studies uncovered a novel photoactivation mechanism, in which the phenothiazine catalyst directly facilitates Si-B bond cleavage in the triplet state, in contrast to conventional redox or HAT mechanisms, enabling radical hydrosilylation with a broad scope of alkenes.</p>","PeriodicalId":94060,"journal":{"name":"JACS Au","volume":"5 9","pages":"4481-4490"},"PeriodicalIF":8.7,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12458007/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145152450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JACS AuPub Date : 2025-08-21eCollection Date: 2025-09-22DOI: 10.1021/jacsau.5c00790
Christopher Adamson, Evan Wei Long Ng, Allan Wee Ren Ng, Shiliu Feng, Yuan Qiao
{"title":"Chemoselective Modification of Reducing 2‑Acetamido Sugars Enables Facile Functionalization of Diverse Peptidoglycan Fragments Derived from the Gut Microbiota.","authors":"Christopher Adamson, Evan Wei Long Ng, Allan Wee Ren Ng, Shiliu Feng, Yuan Qiao","doi":"10.1021/jacsau.5c00790","DOIUrl":"10.1021/jacsau.5c00790","url":null,"abstract":"<p><p>Gut microbiota-derived peptidoglycan fragments (PGNs) are key signaling molecules in microbiota-host crosstalk. Efficient strategies to functionalize natural, unprotected PGN molecules are highly desirable for advancing the biological studies of PGNs. In this work, we developed a facile chemoselective strategy to derivatize the anomeric C1 position of reducing 2-acetamido sugars, a characteristic shared by most PGNs that contain reducing <i>N</i>-acetylmuramic acid. Upon treatment with imidazole-dithiocarbamate-azide (<b>IDA</b>), we showed that natural reducing 2-acetamido PGNs are readily converted to oxazoline intermediates under aqueous conditions. Serendipitously, we discovered that simply freeze-drying the reaction mixture promotes glycosidation of the oxazoline glycosyl donor, leading to PGN-DTC-azide products with high stereoselectivity and yields. Importantly, our chemoselective azidation strategy shows a broad substrate scope, including diverse gut microbiota-derived PGNs, such as muropeptides and natural oligosaccharides. The azido moiety in PGN-DTC-azides serves as a versatile handle for further functionalization, leading to fluorescent or photo-cross-linking PGN probes that maintain the immunological activities of natural PGNs. Importantly, we demonstrate the successful generation of the IgG1 monoclonal antibody 7F8 in mice, which specifically recognizes GlcNAc-MurNAc-DTC-azide as its antigen. Together, we present a simple and unprecedented chemoselective modification of reducing 2-acetamido sugars in unprotected forms via simple freeze-drying, offering attractive tools for studying gut microbiota-derived PGNs and other carbohydrates.</p>","PeriodicalId":94060,"journal":{"name":"JACS Au","volume":"5 9","pages":"4449-4458"},"PeriodicalIF":8.7,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12457995/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145152416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Modular Access to Quaternary α‑Cyano Carbonyl Compounds via NiH Catalysis.","authors":"Yoonho Lee, Yujin Jung, Seonhwa Choo, Kwangmin Shin","doi":"10.1021/jacsau.5c00835","DOIUrl":"10.1021/jacsau.5c00835","url":null,"abstract":"<p><p>Quaternary α-cyano carbonyl compounds are an important class of molecules in organic synthesis due to their versatility as precursors to essential building blocks and their potential applications in pharmaceutical synthesis. Despite the importance of these sterically congested and highly functionalized structures, the development of a general and practical synthetic platform remains a persistent challenge. Herein, we report a nickel-hydride-catalyzed hydrofunctionalization of α,β-unsaturated nitriles with acyl fluorides as well as their carbamoyl and formyl derivatives. This synthetic protocol enables the modular synthesis of a diverse range of quaternary α-cyano carbonyl compounds, including ketones, amides, and esters, under mild conditions and without the need for an external ligand. Combined DFT and experimental mechanistic studies reveal that the present NiH catalysis proceeds via regioselective hydrometalation, followed by the formation of a nickel-keteneiminate intermediate through rearrangement and subsequent nucleophilic substitution reaction between the nickel-keteneiminate and the carbonyl fluorides.</p>","PeriodicalId":94060,"journal":{"name":"JACS Au","volume":"5 9","pages":"4506-4518"},"PeriodicalIF":8.7,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12458049/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145152337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JACS AuPub Date : 2025-08-21eCollection Date: 2025-09-22DOI: 10.1021/jacsau.5c00733
Huan-Xiang Zhou
{"title":"Correlated Segments of Intrinsically Disordered Proteins as Drivers of Homotypic Phase Separation.","authors":"Huan-Xiang Zhou","doi":"10.1021/jacsau.5c00733","DOIUrl":"10.1021/jacsau.5c00733","url":null,"abstract":"<p><p>Many studies have suggested that amino acid composition, not their positions along the sequence, is the determinant of phase separation of intrinsically disordered proteins (IDPs). In particular, aromatic amino acids and Arg have been identified as major drivers. Here I underscore the importance of the positions of amino acids along the sequence in phase separation. Specifically, clusters of interaction-prone amino acids, including Trp and Arg, along the sequence form correlated segments, and these correlated segments, rather than individual residues, drive the phase separation of many IDPs. Correlated segments manifest themselves as stretches of residues that span major peaks in the backbone <sup>15</sup>N NMR transverse relaxation rates and can be predicted by a sequence-based method called SeqDYN (https://zhougroup-uic.github.io/SeqDYNidp/). Interchain interactions between individual residues may be too transient, but those between correlated segments involve multiple residues can provide the strengths required for phase separation. Indeed, sequence motifs revealed by NMR and other techniques as important for phase separation frequently map to SeqDYN-predicted correlated segments. These include residues G624-R626, G638-R640, and R660-Q666 of CAPRIN1, residues R21-G30 of LAF-1, and residues Q9-P21 of FUS. SeqDYN presents a sequence-based method for identifying motifs that drive phase separation of IDPs.</p>","PeriodicalId":94060,"journal":{"name":"JACS Au","volume":"5 9","pages":"4361-4369"},"PeriodicalIF":8.7,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12458045/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145152431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JACS AuPub Date : 2025-08-21eCollection Date: 2025-09-22DOI: 10.1021/jacsau.5c00613
Yongxu Peng, Junlong Li, Zongao Song, Mengyang Li, Yue Xiao, Xin Wang, Tao Wang, Yurun Xie, Jun Li, Tiangang Yang
{"title":"Ionic Reactant Orientation Inhibits Ion-Neutral Reactions at Low Temperatures.","authors":"Yongxu Peng, Junlong Li, Zongao Song, Mengyang Li, Yue Xiao, Xin Wang, Tao Wang, Yurun Xie, Jun Li, Tiangang Yang","doi":"10.1021/jacsau.5c00613","DOIUrl":"10.1021/jacsau.5c00613","url":null,"abstract":"<p><p>Barrierless ion-molecule reactions are critical to interstellar chemistry, particularly at low temperatures. Their rate coefficients are often estimated using classical capture theory, which neglects the spatial orientation of molecular ions. Here, we investigate the reaction between sympathetically cooled BeD<sup>+</sup> and O<sub>2</sub> using a linear quadrupole ion trap combined with a high-resolution time-of-flight mass spectrometer. Isotopic substitution confirms BeOD<sup>+</sup> and O were the only products. The measured rate coefficient, <i>k</i> = (5.4 ± 1.2) × 10<sup>-11</sup> cm<sup>3</sup>/s at the collision energy of 97 K (E/k<sub>B</sub>), is approximately 15 times lower than that predicted by the classical capture model. Master equation modeling based on electronic structure calculations up to CCSDT-(Q) accurately reproduces the experiment. Unlike the point-charge approximation in capture theory, our results show that reactivity is strongly constrained by the steric requirements of the ionic reactant: only a small subset of orientations between reactants leads to a low-energy barrier that allows the reaction to proceed at low temperatures. These findings underscore the necessity to include steric effects in capture models for accurate predictions.</p>","PeriodicalId":94060,"journal":{"name":"JACS Au","volume":"5 9","pages":"4260-4267"},"PeriodicalIF":8.7,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12458013/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145152376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JACS AuPub Date : 2025-08-20eCollection Date: 2025-09-22DOI: 10.1021/jacsau.5c00823
Mohsen Tamtaji, William A Goddard, Ziyang Hu, Shuguang Chen, GuanHua Chen
{"title":"Dynamic Single-Atom Catalysts on Gallium To Overcome the Scaling Relationship Limit: AIMD Screening for CO<sub>2</sub> Reduction and Hydrogen Evolution Reactions.","authors":"Mohsen Tamtaji, William A Goddard, Ziyang Hu, Shuguang Chen, GuanHua Chen","doi":"10.1021/jacsau.5c00823","DOIUrl":"10.1021/jacsau.5c00823","url":null,"abstract":"<p><p>Extensive research has been conducted on single-atom catalysts (SACs) for a range of electrochemical reactions. However, <i>static</i> SACs suffer from scaling relationship limits, which hinder their further development. In this work, we introduce the idea of <i>dynamic</i> SACs supported on Gallium for the hydrogen evolution reaction (HER) and the CO<sub>2</sub> reduction reaction (CO<sub>2</sub>RR). We utilized AIMD and DFT calculations to systematically conduct high-throughput screening on s-, p-, d-, and f-block elements supported by Gallium denoted as M-SAC@Ga. We found that among all the understudied catalysts, Re-, Pt-, Pd-, Rh-, Ir-, Au-, Ag-, Ru-, Tc-, Ni-, Cu-, Os-, Hg-, and Ge-SAC@Ga possess thermodynamic and electrochemical stabilities. In addition: Ni-SAC@Ga leads to CO<sub>2</sub>RR overpotentials of 0.28, 0.28, 0.69, and 0.92 V, respectively, toward CHOOH, CO, CH<sub>3</sub>OH, and CH<sub>4</sub> formation. Low overpotentials and mitigation of scaling relationship limits are primarily due to the atomic intelligence (the ability to guide reactions) and dynamic coordination changes of SACs, seen through DFT and AIMD calculations. Analyzing the phonon-induced fluctuations in total energies suggests a standard deviation of up to 0.26 V in the calculated overpotentials. Additionally, the dephasing time for these dynamic systems is below 5 fs, a crucial factor affecting the modeling of catalytic behavior. Feature importance analysis suggests that the d-electron numbers serve as the universal descriptors for these catalysts. This study offers a comprehensive insight into the discovery of cutting-edge electrocatalysts and beyond by applying the concept of <i>dynamic</i> SACs.</p>","PeriodicalId":94060,"journal":{"name":"JACS Au","volume":"5 9","pages":"4459-4471"},"PeriodicalIF":8.7,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12458042/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145152386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Asymmetrically Steering Excited-State Reaction Channels for Ambient N <sub><b>2</b></sub> Catalytic Oxidation.","authors":"Jiabao Lv, Pu Guo, Shanzhi Liu, Yaqi Peng, Lujie Liu, Jian Wu, Xiaodong Li, Zhifu Qi, Songqiang Zhu, Liang Wang, Angjian Wu, Jianping Xiao, Jianhua Yan","doi":"10.1021/jacsau.5c00767","DOIUrl":"10.1021/jacsau.5c00767","url":null,"abstract":"<p><p>Precise control of catalytic reactions in the excited state is challenging, as the highly reactive chemical environment strengthens both forward and reverse reactions simultaneously. Here, we propose a strategy to asymmetrically regulate the reaction channels via the physical mixing of the model catalyst Co<sub>3</sub>O<sub>4</sub>/Al<sub>2</sub>O<sub>3</sub> with 13X zeolite, enabling efficient plasma-driven N<sub>2</sub> oxidation with minimized reverse reaction kinetics. <i>In situ</i> characterization combined with molecular dynamics simulations reveals that the diffusion of the product NO is selectively accelerated through Na<sup>+</sup>-mediated transport channels. This promotes NO turnover on octahedral Co<sup>3+</sup> active sites, thereby unidirectionally shifting the reaction equilibrium. Thus, we demonstrate N<sub>2</sub> oxidation performance under ambient conditions that surpasses the efficiency of thermochemical conversion at 1,800 K, achieving more than a 3-fold improvement in the N<sub>2</sub> conversion rate compared to the conventional plasma-catalysis system. This work provides an approach to orderly modulate heterogeneous catalytic reactions in the excited state.</p>","PeriodicalId":94060,"journal":{"name":"JACS Au","volume":"5 9","pages":"4398-4407"},"PeriodicalIF":8.7,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12457990/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145152339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JACS AuPub Date : 2025-08-19eCollection Date: 2025-09-22DOI: 10.1021/jacsau.5c00737
Sierra Sterling, Yin Wei, Gaurav Arya, Carlos Castro, Yonggang Ke
{"title":"Emerging Research on Gene Delivery to the Nucleus via DNA Origami.","authors":"Sierra Sterling, Yin Wei, Gaurav Arya, Carlos Castro, Yonggang Ke","doi":"10.1021/jacsau.5c00737","DOIUrl":"10.1021/jacsau.5c00737","url":null,"abstract":"<p><p>Structural DNA nanotechnology, a research field in which scientists use DNA as the primary material to make designer nanostructures, has experienced rapid growth in the past few decades. The continuous development of the field has produced a rich repository of impressive, complex nanostructures for applications in materials science, biological research, and therapeutics. The unprecedented programmability of DNA nanostructures, particularly DNA origami, combined with the biocompatibility and rich functionality of DNA molecules make them attractive candidates for building nanocarriers for cellular delivery. While the initial research toward this direction focused on the delivery of small molecule drugs and short nucleic acids, emerging efforts in the last two years have expanded to gene delivery by leveraging the capacity of DNA origami to fold gene sequences into compact structures amenable for cell delivery. Here, we review this exciting research direction and provide our perspective on the challenges and opportunities in this field.</p>","PeriodicalId":94060,"journal":{"name":"JACS Au","volume":"5 9","pages":"4155-4164"},"PeriodicalIF":8.7,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12458035/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145151591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}