Works matching DE "SCHIFF bases"

Results: 5000

Rectal mucosal quantitative galactose oxidase-Schiff reaction as an early detection biomarker for colorectal cancer: Comparison to fecal occult stool blood test.

Published in:

Cancer Biomarkers, 2011, v. 8, n. 2, p. 109, doi. 10.3233/CBM-2011-0206

By:

Ruffin, Mack T.;
Normolle, Daniel P.;
Evelegh, Michael J.;
Baron, John A.;
Bresalier, Robert S.;
Marcon, Norman E.;
Syngal, Sapna;
Turgeon, D. Kim;
Tuck, Melissa K.;
Brenner, Dean E.

Publication type:

Article

Crystal structure and photophysical properties of (κ2‐(N,O)‐5,7‐dichloro‐2‐methyl‐8‐quinolinolate)di(pentafluorophenyl)borane: Experiment and density functional theory calculations.

Published in:

Vietnam Journal of Chemistry, 2024, v. 62, n. 6, p. 838, doi. 10.1002/vjch.202300161

By:

Phuong, Nguyen Minh;
Huy, Nguyen Thac;
Nhi, Nguyen Thuy Huong;
Hai, Le Thi Hong;
Dung, Tran Ngoc;
Van Thong, Pham;
Xuyen, Nguyen Thi;
Van Hung, Hoang;
Mo, Nguyen Thi;
Hue, Nguyen Thi Minh

Publication type:

Article

Facile synthesis and grafting of N2O2‐Cu(II) Schiff base complex onto graphene oxide surface: Aspects of its antimicrobial, anticancer, antiCOVID‐19 and photodegradation of methylene blue.

Published in:

Vietnam Journal of Chemistry, 2024, v. 62, n. 2, p. 178, doi. 10.1002/vjch.202300152

By:

Abdel‐Rahman, Laila H.;
Shehata, Mohamed R.;
Ahmed, Ebtehal Abdel‐Hameed;
Mohammed, Khaled M. H.;
Nafady, Ayman

Publication type:

Article

Three Pairs of Chiral Schiff Base Lanthanide Complexes Exhibiting Single‐Molecule Magnet, Fluorescence and SHG Properties.

Published in:

European Journal of Inorganic Chemistry, 2025, v. 28, n. 17, p. 1, doi. 10.1002/ejic.202400859

By:

You, Tian‐Yu;
Liu, Dan;
Li, Xin‐Feng;
Chen, Du‐Yong;
Li, Jing;
Zhang, Li‐Yan;
Li, Rui;
Liu, Tao;
Meng, Yin‐Shan

Publication type:

Article

COMPUTATIONAL BINDING STUDIES AND BIOACTIVITY EVALUATION FOR CERTAIN SCHIFF BASE METAL-COMPLEXES TRANSFORMED FROM CIPROFLOXACIN.

Published in:

Chemical Problems / Kimya Problemləri, 2025, v. 23, n. 3, p. 449, doi. 10.32737/2221-8688-2025-3-449-461

By:

Al-Obedi, Ahmad D.;
Al-Nama, Khansaa Sh.

Publication type:

Article

SYNTHESIS, CHARACTERIZATION, AND BIOLOGICAL ACTIVITY OF VARIOUS NEW SCHIFF BASES ASSOCIATED WITH THE 9,10-DIHYDRO-9,10-[3,4]FURANOANTHRACENE-12,14-DIONE GROUP.

Published in:

Chemical Problems / Kimya Problemləri, 2025, v. 23, n. 3, p. 433, doi. 10.32737/2221-8688-2025-3-433-442

By:

Khaleel, Zina L.;
Al-Jawaheri, Yassir S.

Publication type:

Article

SYNTHESES, CHARACTERIZATION AND THERMAL STABILITY STUDY OF NEW Co(II), Cu(II) AND Zn(II) COMPLEXES DEVIATES FROM SCHIFF BASE 4-(DIMETHYLAMINO)BENZALDEHYDE.

Published in:

Chemical Problems / Kimya Problemləri, 2025, v. 23, n. 3, p. 395, doi. 10.32737/2221-8688-2025-3-395-387

By:

Mohammed, Enas H.;
AlSultan, Mohammed;
Alasalli, Saba M.;
Sabah, Assim A.

Publication type:

Article

SYNTHESIS AND CHARACTERIZATION OF FIVE-MEMBERED HETEROCYCLIC COMPOUNDS OF TETRAZOLE DERIVATIVES AND THEIR BIOLOGICAL ACTIVITY.

Published in:

Chemical Problems / Kimya Problemləri, 2025, v. 23, n. 3, p. 365, doi. 10.32737/2221-8688-2025-3-365-374

By:

Khalil, Sara L.;
Saleem, Neam H.

Publication type:

Article

Synthesis of Substituted 2-Arylimino-3-oxopropanenitriles and 2-(Arylimino)propanedinitriles by Oxidative Coupling of Primary Aromatic Amines with Aroylacetonitriles and Malononitrile.

Published in:

Russian Journal of Organic Chemistry, 2025, v. 61, n. 4, p. 669, doi. 10.1134/S1070428025601074

By:

Kachanov, A. V.;
Kucheshov, M. A.;
Slabko, O. Yu.

Publication type:

Article

Facile sonochemical synthesis of binuclear copper Schiff base complexed nanoparticles for electrochemical detection of methyldopa.

Published in:

Journal of the Iranian Chemical Society, 2025, v. 22, n. 6, p. 1301, doi. 10.1007/s13738-025-03227-7

By:

Javaherian, Saleh;
Molaakbari, Elaheh;
Shamspur, Tayabeh;
Tohidiyan, Zeinab;
Mostafavi, Ali

Publication type:

Article

A novel naphthalene-pyridine Schiff base sensor for highly selective colorimetric detection of Fe2+, Fe3+, and Cu2+ ions.

Published in:

International Journal of Chemical Reactor Engineering, 2025, v. 23, n. 4, p. 433, doi. 10.1515/ijcre-2024-0249

By:

Kaswan, Poonam

Publication type:

Article

EFFICIENT REMOVAL OF METHYL ORANGE ON CHITOSAN-DIALDEHYDE PECTIN FILM ELABORATED VIA SCHIFF BASE REACTION.

Published in:

Cellulose Chemistry & Technology, 2025, v. 59, n. 3/4, p. 399

By:

ZEFFOUNI, ZAKIA;
CHEKNANE, BENAMAR;
ZERMANE, FAIZA;
M'ZYENE, FATIMA;
EL HATTAB, MOHAMED

Publication type:

Article

A Multifunctional Double-Network Hydrogel Based on Bullfrog Skin Collagen: High-Value Utilization of Aquaculture By-Products.

Published in:

Foods, 2025, v. 14, n. 11, p. 1926, doi. 10.3390/foods14111926

By:

Song, Chunyu;
Zheng, Xiaoshan;
Lu, Ying

Publication type:

Article

Alüminyum Tespiti için Kullanılabilecek Kinolin Temelli Yeni Schiff Bazı Sentezi, Karakterizasyonu ve Florimetrik Çalışmaları.

Published in:

Afyon Kocatepe University Journal of Science & Engineering / Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi, 2025, v. 25, n. 3, p. 471, doi. 10.35414/akufemubid.1597059

By:

KUTLUCA ALICI, Meliha

Publication type:

Article

Preparation of rich cellulosic hydrochar-based wood adhesives from bamboo powder.

Published in:

Cellulose, 2025, v. 32, n. 8, p. 5035, doi. 10.1007/s10570-025-06532-9

By:

Zhu, Han-Song;
Tan, Ze-Kai;
Chen, Yong-Xing;
Yang, Huan;
Xu, Zhi-Xiang;
Leng, Li-Jian

Publication type:

Article

Fabrication of Schiff Base Interfacial Films via Polyethyleneimine and Glutaraldehyde for pH‐Responsive Oil‐in‐Water High Internal Phase Emulsions.

Published in:

Advanced Materials Interfaces, 2025, v. 12, n. 11, p. 1, doi. 10.1002/admi.202500019

By:

Sun, Lei;
Ye, Fei;
Zhu, WenHui;
Tan, Wenrui;
Xiang, Leixin;
Liu, Yang;
Zhang, Shiming

Publication type:

Article

A New Schiff Base Organically Modified Silica Aerogel-Like Material for Metal Ion Adsorption with Ni Selectivity.

Published in:

Adsorption Science & Technology, 2022, v. 2022, p. 1, doi. 10.1155/2022/8237403

By:

Vareda, João P.;
Matos, Paulo D.;
Valente, Artur J. M.;
Durães, Luisa;
Igwegbe, Chinenye Adaobi

Publication type:

Article

One‐Pot Synthesis of Fully Conjugated Covalent Organic Frameworks via the Pictet–Spengler Reaction for Boosting H2O2 Photogeneration in Real Seawater.

Published in:

Advanced Functional Materials, 2025, v. 35, n. 23, p. 1, doi. 10.1002/adfm.202421514

By:

Yue, Jie‐Yu;
Pan, Zi‐Xian;
Zhang, Rui‐Zhi;
Xu, Qing;
Yang, Peng;
Tang, Bo

Publication type:

Article

Novel Schiff Bases: Synthesis, Characterization, Bioactivity, Cytotoxicity, and Computational Evaluations.

Published in:

Polycyclic Aromatic Compounds, 2025, v. 45, n. 4, p. 541, doi. 10.1080/10406638.2024.2412217

By:

Medetalibeyoğlu, Hilal;
Manap, Sevda;
Alkan, Muzaffer;
Beytur, Murat;
Barlak, Neslisah;
Karatas, Omer Faruk;
Tüzün, Burak;
Yüksek, Haydar;
Taslimi, Parham

Publication type:

Article

The Effect of Aldehyde and Carboxylic Acid Substitution on the Isomerization of Hemithioindigo Photoswitches.

Published in:

Chemistry - A European Journal, 2025, v. 31, n. 31, p. 1, doi. 10.1002/chem.202501108

By:

Quindt, Matías I.;
Jo, Taegeun;
Kumar, Amol;
Steen, Jorn D.;
D'Amario, Luca;
Ott, Sascha;
Crespi, Stefano

Publication type:

Article

Progress in injectable hydrogels for hard tissue regeneration in the last decade.

Published in:

Journal of Biomaterials Science -- Polymer Edition, 2025, v. 36, n. 8, p. 1085, doi. 10.1080/09205063.2024.2436292

By:

Keshavarz, Mahya;
Mohammadi, Mohsen;
Shokrolahi, Fatemeh

Publication type:

Article

Dithienylethene Proton Cranes – Another Way to Switch the Tautomeric State.

Published in:

Chemistry - An Asian Journal, 2025, v. 20, n. 10, p. 1, doi. 10.1002/asia.202401881

By:

Zaharieva, Lidia;
Deneva, Vera;
Angelov, Ivan;
Antonov, Liudmil

Publication type:

Article

Synthesis, Crystal Structures and Catalytic Oxidation Property of Copper(II) Complexes Derived from 5-Bromo-2-((2-diethylaminoethylimino)methyl)Phenol.

Published in:

Journal of Structural Chemistry, 2025, v. 66, n. 5, p. 1051, doi. 10.1134/S0022476625050178

By:

Liu, Y.;
Yang, Q.;
Wang, S.;
Liu, R.;
Chen, Y.;
Li, S.

Publication type:

Article

Synthesis and Characterization of New Petroleum Demulsifies from Poly Acryl Amide with Poly Vinyl Alcohol and Studying Photolysis.

Published in:

Baghdad Science Journal, 2025, v. 22, n. 5, p. 1436, doi. 10.21123/bsj.2024.10649

By:

Fadel, Zaynab Hussein;
Ibrahim, Sura K.;
Awad, Sana Hitur;
Mohammed, Faris Hamood

Publication type:

Article

Preparation of Polymerized Schiff Base and Its Adsorption Properties for Cu(II) from Wastewater.

Published in:

Hydrometallurgy of China, 2025, v. 44, n. 3, p. 342, doi. 10.13355/j.cnki.sfyj.2025.03.008

By:

ZHENG Yihao;
REN Lili;
CHENG Lili;
WANG Shiqin;
LU Wenting

Publication type:

Article

The Antimicrobial Efficacy of Copper Complexes: A Review.

Published in:

Antibiotics (2079-6382), 2025, v. 14, n. 5, p. 516, doi. 10.3390/antibiotics14050516

By:

Ngece, Kwanele;
Khwaza, Vuyolwethu;
Paca, Athandwa M.;
Aderibigbe, Blessing A.

Publication type:

Article

Copper(II) Complex with a 3,3′-Dicarboxy-2,2′-Dihydroxydiphenylmethane-Based Carboxylic Ligand: Synthesis, Spectroscopic, Optical, Density Functional Theory, Cytotoxic, and Molecular Docking Approaches for a Potential Anti-Colon Cancer Control

Published in:

Inorganics, 2025, v. 13, n. 5, p. 151, doi. 10.3390/inorganics13050151

By:

Ahmed, Ayman H.;
Althobaiti, Ibrahim O.;
Soliman, Kamal A.;
Asiri, Yazeed M.;
Alenezy, Ebtsam K.;
Alrashdi, Saad;
Gad, Ehab S.

Publication type:

Article

Novel 8-Hydroxyquinoline-Derived V(IV)O, Ni(II), and Fe(III) Complexes: Synthesis, Characterization, and In Vitro Cytotoxicity Against Tumor Cells.

Published in:

Inorganics, 2025, v. 13, n. 5, p. 150, doi. 10.3390/inorganics13050150

By:

Lopes, Joana;
Côrte-Real, Leonor;
Neto, Íris;
Alborghetti, Alice;
Dejoux, Maël;
May, Nora V.;
Fontrodona, Xavier;
Romero, Isabel;
Antunes, Alexandra M. M.;
Reis, Catarina Pinto;
Gaspar, Maria Manuela;
Correia, Isabel

Publication type:

Article

New Lead Schiff Bases Predominantly Mediate Vasorelaxant Activity Through α 1 Receptor Blocking Activity.

Published in:

Biomolecules (2218-273X), 2025, v. 15, n. 5, p. 611, doi. 10.3390/biom15050611

By:

Subhan, Zakia;
Ali, Niaz;
Ullah, Abid;
Ali, Wajid;
Nabi, Muhammad;
Shah, Syed Wadood Ali

Publication type:

Article

Synthesis and Characterization of Mn (II), Ni (II), and Cu (II) Complexes Derived From Sulfonamide and o‐Vanillin‐Based Schiff Base and Their Antimicrobial, Antioxidant, and Cytotoxic Properties.

Published in:

Applied Organometallic Chemistry, 2025, v. 39, n. 6, p. 1, doi. 10.1002/aoc.70203

By:

Mitu, Tamanna Fariha;
Islam, Saiful;
Akther, Shamima;
Jamal, A. H. M. Shofiul Islam Molla;
Moulick, Shyama Prosad;
Uddin, Md. Najem;
Shaikh, Md. Aftab Ali;
Bakshi, Pradip K.

Publication type:

Article

Alkyne Allied Schiff‐Base Synthesis for the Tin(II) Detection via UV–Visible and Fluorescence Sensor Along With Their Cytotoxicity Assessment and Antibreast Cancer Activity Against 17Beta‐HSD1 Using Molecular Docking.

Published in:

Applied Organometallic Chemistry, 2025, v. 39, n. 6, p. 1, doi. 10.1002/aoc.70197

By:

Singh, Gurjaspreet;
Rani, Bhavana;
Kaur, Harshbir;
Espinosa‐Ruíz, Cristobal;
Esteban, María Angeles;
Dege, Necmi;
Yagci, Nermin Kahveci;
Singh, K. N.

Publication type:

Article

Synthesis, Spectroscopic Characterization, DFT Studies of Novel Praseodymium(III), Neodymium(III), and Samarium(III) Complexes of a Tridentate Schiff Base: Aspects of Their Antimicrobial, Antitumor, and Biological Profiles.

Published in:

Applied Organometallic Chemistry, 2025, v. 39, n. 6, p. 1, doi. 10.1002/aoc.70192

By:

Abdel‐Fatah, Shimaa M.;
Basha, Maram T.;
Al‐Sulami, Ahlam I.;
Shehata, Mohamed R.;
Abdel‐Rahman, Laila H.

Publication type:

Article

Silicon-Containing π-Conjugated Schiff Base Oligomers with Naphthalene or Binaphthalene Moieties in the Backbone: Synthesis and Study of Properties.

Published in:

Polymers (20734360), 2025, v. 17, n. 10, p. 1316, doi. 10.3390/polym17101316

By:

González, Enzo;
González, Alexis F.;
Mariman, Andrea P.;
Jara, Camilo I.;
Velázquez, Joel D.;
Saldías, César;
Schott, Eduardo;
Zarate, Ximena;
Tundidor-Camba, Alain;
Sobarzo, Patricio A.;
Terraza, Claudio A.

Publication type:

Article

Construction of pH-Sensitive Multifunctional Hydrogel with Synergistic Anti-Inflammatory Effect for Treatment of Diabetic Wounds.

Published in:

Pharmaceutics, 2025, v. 17, n. 5, p. 644, doi. 10.3390/pharmaceutics17050644

By:

Sun, Xiaoyan;
Li, Yan;
Wang, Haifeng;
Meng, Yanqiu;
Dai, Xu;
Du, Lina;
Li, Lei

Publication type:

Article

Development and Characterization of an Injectable Alginate/Chitosan Composite Hydrogel Reinforced with Cyclic-RGD Functionalized Graphene Oxide for Potential Tissue Regeneration Applications.

Published in:

Pharmaceuticals (14248247), 2025, v. 18, n. 5, p. 616, doi. 10.3390/ph18050616

By:

Sauce-Guevara, Mildred A.;
García-Schejtman, Sergio D.;
Alarcon, Emilio I.;
Bernal-Chavez, Sergio A.;
Mendez-Rojas, Miguel A.

Publication type:

Article

A Fast and Efficient Hydrogen Chloride Sensor Based on a Polymer Composite Film Using a Novel Schiff-Based Triphenylamine Molecule as the Probe.

Published in:

Materials (1996-1944), 2025, v. 18, n. 10, p. 2291, doi. 10.3390/ma18102291

By:

Lv, Hao;
Guo, Yaning;
Han, Yinfeng;
Ye, Jiaxin;
Xiao, Jian;
Hu, Xiaobing

Publication type:

Article

Syntheses and Structures of Diorganotin Compounds Containing a Pentadentate Schiff Base Featuring Two Chiral Centers.

Published in:

European Journal of Inorganic Chemistry, 2025, v. 28, n. 15, p. 1, doi. 10.1002/ejic.202500164

By:

Basu Baul, Tushar S.;
Khatiwara, Avishek;
Duthie, Andrew;
Höpfl, Herbert;
Mroß, David;
Jurkschat, Klaus

Publication type:

Article

Biomolecular Affinities and Cytotoxicity of Copper(I) and Silver(I) Phosphine–Pyridinyl Complexes Against CACO‐2 and CASKI Cell Lines.

Published in:

European Journal of Inorganic Chemistry, 2025, v. 28, n. 15, p. 1, doi. 10.1002/ejic.202500123

By:

Adeleke, Adesola A.;
Meyer, Miche D.;
Sibuyi, Nicole R. S.;
Onani, Martin O.;
Omondi, Bernard

Publication type:

Article

Network‐Remodeling, Electroactive and Antibacterial Cryogel with Tissue Sealing and Pro‐Coagulant Activity for Hemostasis and Skin Wound Healing.

Published in:

Advanced Functional Materials, 2025, v. 35, n. 22, p. 1, doi. 10.1002/adfm.202419037

By:

Luo, Jinlong;
Wu, Zhengying;
Zhao, Xin;
Qiao, Lipeng;
Huang, Ying;
Chen, Jueying;
Shan, Yingli;
Deng, Zexing;
Liang, Zhen;
Han, Yong;
Guo, Baolin

Publication type:

Article

Synthesis, characterization, biological evaluation and molecular docking of a Schiff base ligand and its metal complexes.

Published in:

BioMetals, 2025, v. 38, n. 3, p. 935, doi. 10.1007/s10534-025-00688-4

By:

AbouElleef, Elsayed M.;
Saad, Rania A.;
Diab, M. A.;
El-Zahed, M. M.;
El-Sonbati, A. Z.;
Morgan, Sh. M.

Publication type:

Article

Multi-Modal Mechanical Response of Self-Healing Double-Network Hydrogel Coatings Based on Schiff Base Bond.

Published in:

Coatings (2079-6412), 2025, v. 15, n. 5, p. 552, doi. 10.3390/coatings15050552

By:

Li, Yanan;
Hu, Wenbin;
Gao, Qike;
Yan, Jincan;
Wang, Guan;
Han, Sheng;
Wang, Chenchen;
Hou, Xiaozheng

Publication type:

Article

Symmetric Liquid Crystal Dimers Containing a Luminescent Mesogen: Synthesis, Mesomorphic Behavior, and Optical Properties.

Published in:

Soft Materials, 2013, v. 11, n. 1, p. 32, doi. 10.1080/1539445X.2011.567434

By:

Marin, Luminita;
Zabulica, Andrei;
Sava, Mitica

Publication type:

Article

Microporous Poly(Schiff Base) Constructed from Tetraphenyladamantane Units for Adsorption of Gases and Organic Vapors.

Published in:

Macromolecular Rapid Communications, 2014, v. 35, n. 10, p. 971, doi. 10.1002/marc.201400013

By:

Li, Guiyang;
Zhang, Biao;
Wang, Zhonggang

Publication type:

Article

Mechanistic Insights into Amphoteric Reactivity of an Iron‐Bispidine Complex.

Published in:

Chemistry - A European Journal, 2024, v. 30, n. 3, p. 1, doi. 10.1002/chem.202303127

By:

Mukherjee, Gourab;
Velmurugan, Gunasekaran;
Kerscher, Marion;
Kumar Satpathy, Jagnyesh;
Sastri, Chivukula V.;
Comba, Peter

Publication type:

Article

Cover Feature: Vanadium(V) Pyridine‐Containing Schiff Base Catecholate Complexes are Lipophilic, Redox‐Active and Selectively Cytotoxic in Glioblastoma (T98G) Cells (Chem. Eur. J. 68/2023).

Published in:

2023

By:

Kostenkova, Kateryna;
Levina, Aviva;
Walters, Drew A.;
Murakami, Heide A.;
Lay, Peter A.;
Crans, Debbie C.

Publication type:

Correction Notice

Vanadium(V) Pyridine‐Containing Schiff Base Catecholate Complexes are Lipophilic, Redox‐Active and Selectively Cytotoxic in Glioblastoma (T98G) Cells.

Published in:

Chemistry - A European Journal, 2023, v. 29, n. 68, p. 1, doi. 10.1002/chem.202302271

By:

Kostenkova, Kateryna;
Levina, Aviva;
Walters, Drew A.;
Murakami, Heide A.;
Lay, Peter A.;
Crans, Debbie C.

Publication type:

Article

Organo‐Functionalized Lacunary Double Cubane‐Type Oxometallates: Synthesis, Structure, and Properties of [(MIICl)2(VIVO)2{((HOCH2CH2)(H)N(CH2CH2O))(HN(CH2CH2O)2)}2] (M=Co, Zn)

Published in:

Chemistry - A European Journal, 2023, v. 29, n. 59, p. 1, doi. 10.1002/chem.202301389

By:

Shuaib, Damola T.;
Swenson, LaSalle;
Kaduk, James A.;
Chang, Tieyan;
Chen, Yu‐Sheng;
McNeely, James;
Khan, M. Ishaque

Publication type:

Article

Cover Feature: Highly Electrophilic Mononuclear Cationic Aluminium Alkoxide Complexes: Syntheses, Reactivity and Catalytic Applications (Chem. Eur. J. 55/2023).

Published in:

Chemistry - A European Journal, 2023, v. 29, n. 55, p. 1, doi. 10.1002/chem.202302575

By:

Bhandari, Mamta;
Kaur, Mandeep;
Rawat, Sandeep;
Singh, Sanjay

Publication type:

Article

Highly Electrophilic Mononuclear Cationic Aluminium Alkoxide Complexes: Syntheses, Reactivity and Catalytic Applications.

Published in:

Chemistry - A European Journal, 2023, v. 29, n. 55, p. 1, doi. 10.1002/chem.202301229

By:

Bhandari, Mamta;
Kaur, Mandeep;
Rawat, Sandeep;
Singh, Sanjay

Publication type:

Article

[3+2]‐Cycloaddition Reactions of gem‐Difluorocyclopropenes with Azomethine Ylides – Access to Novel Fluorinated Scaffolds.

Published in:

Chemistry - A European Journal, 2023, v. 29, n. 54, p. 1, doi. 10.1002/chem.202301861

By:

Donnelly, Kian;
Singh, Amritpal;
Tuttle, Tell;
Baumann, Marcus

Publication type:

Article